1.PSSCOC for Construction Works 2008 (6th edition Dec 2008)

1.PSSCOC for Construction Works 2008 (6th edition Dec 2008)
1.PSSCOC for Construction Works 2008 (6th edition Dec 2008)

PUBLIC SECTOR STANDARD CONDITIONS OF CONTRACT FOR CONSTRUCTION WORKS

2008

Public Sector Standard Conditions of Contract for Construction Works 2008

? Building and Construction Authority

First published 1995

Second edition July 1999

Reprint March 2000

2002

Reprint October

Third edition January 2004

Fourth edition March 2005

Fifth edition December 2006

Sixth edition December 2008

All rights reserved.No part of this publication may be reproduced or copied by any means without the prior written permission of the copyright holder, application of which should be addressed to the Chief Executive Officer, Building and Construction Authority, 5 Maxwell Road, #16-00 Tower Block MND Complex, Singapore 069110.

CONTENTS

Page

1 Definitions and Interpretation

1.1 Definitions 1

1.2 Singular and Plural 3 1.3 Headings and Marginal Notes 3 1.4 Joint and Several Liability 3

2 Superintending Officer and Superintending Officer's Representative 2.1 Superintending Officer's Authority 4 2.2 Superintending Officer's Representative 4 2.

3 Superintending Officer's Authority to Delegate

4 2.4 Appointment of Assistants 4 2.

5 Instructions by Superintending Officer 5 2.

6 Failure to Comply with Superintending Officer's Instructions 5

2.7 Urgent repairs 5 2.8 No Obligation to Exercise Powers 5

3 Contract Documents 3.1 Contract Documents to be Taken as Mutually Explanatory 6 3.2 Custody and Supply of Drawings and Documents 6 3.3 Drawings to be Kept on Site 6 3.

4 Need for Further Drawings etc 6 3.

5 Further Supplementary Drawings etc. and Instructions 7 3.

6 Delay and Time 7

4 General Obligations of the Contractor 4.1 Contractor's General Responsibilities 8 4.2 Site Operations and Methods of Construction 8 4.3 Contractor's Responsibility for Subcontractors 8 4.4 Responsibility for Identifying Ambiguities, Discrepancies, etc 8

4.5 Security Deposit 9 4.6 Sufficiency of Tender 9 4.7 Patents, Trademarks, Copyrights, etc 10

5 Sub-Surface and Ground Conditions 5.1 Inspection of Site and Geotechnical Information 10 5.2 Adverse Physical Conditions 10

5.3 Underground Services 11

6 Permanent Works Designed by the Contractor 6.1 Contractor's Design Responsibility 11 6.2 Submission of Documents Prior to Commencement 11 6.3 Submission of Documents after Completion 11 6.4 Amendment and Modification of Accepted Design

11

7 Notices

Fees

and

7.1 Generally 12

7.2 Variations Arising from Compliance 12

7.3 Cost of Compliance 12

Out

8 Setting

8.1 Accurate Setting Out 13

8.2 Errors in Setting Out 13

9 Programme for the Works

9.1 Programme to be Furnished 13

9.2 Revision

Programme 14 of

9.3 Acceptance of Programme 14

9.4 Failure to Submit Adequate Programme 14

10 Quality in Construction

10.1 Plant, Material, Goods and Workmanship 15

10.2 Contractor to Provide Everything Necessary for Testing 15

Samples 15 10.3 Cost

of

10.4 Cost of Test 15

10.5 Examination and Measurement of Works before Covering Up 16

10.6 Uncovering and Making Openings 16

10.7 Defects during the Progress of the Works 16

10.8 Default of Contractor in Compliance 17

11 Administration

11.1 Days and Hours of Working 17

Representative 17 11.2 Contractor's

11.3 Removal of Workmen and Other Personnel 18

11.4 Access for Superintending Officer 18

12 Possession of Site And Commencement Of Works

Works 18 12.1 Commencement

of

Possession 18 12.2 Site

12.3 Failure to Give Possession 19

12.4 Rights of Access etc 19

Contractors 19

12.5 Other

13 Suspension

13.1 Suspension of Work 20

13.2 Suspension lasting more than 90 days 20

14 Time for Completion

14.1 Contractor to Complete on Time 21

14.2 Extension of the Time for Completion 21

14.3 Notice 22

15 Expediting Progress of Works

Expedite 23

to

15.1 Notification

15.2 Work to Expedite Progress 23

Damages

16 Liquidated

16.1 Payment by the Contractor 24

16.2 Reduction of Liquidated Damages 24

16.3 Employer's Common Law Rights for Damages 24

16.4 Extension of Time During Delay Period 24

Completion

17 Substantial

17.1 Certificate of Substantial Completion 25

17.2 Access for Remedial Work 25

17.3 Completion of Phase or Part 25

18 Defects

18.1 Completion of Outstanding Works and Remedying Defects 26

18.2 Cost of Remedying Defects 26

18.3 Diminution in Value of Works 27

Search 27 18.4 Contractor

to

18.5 Liability at Common Law 27

19 Variations to the Works

19.1 Variations 27 19.2 Power to Order Variations 28

of

Quotations 28 19.3 Submission

19.4 Alternative Proposals by Contractor 28

Variations

20 Valuation

of

Methods 29 20.1 Valuation

20.2 Agreement

Valuation 29 on

20.3 Provisional Sum Items 31

20.4 Daywork 31

21 Measurement

21.1 Contractor to Attend Measurement 31

21.2 Contractor to Provide Assistance 31

of

Measurements 32 21.3 Record

21.4 Failure to Agree Measurements 32

22 Claims for Loss and Expense

22.1 Reasons for Loss and Expense 32

22.2 Sufficiency of Loss and Expense 33

23 Procedure for Claims

Claims 33 23.1 Notice

of

Records 33 23.2 Contemporary

of

Claims 33 23.3 Substantiation

23.4 Access to Contractor's Books and Documents 34

23.5 Payment of Claims 34

23.6 Failure to Comply 34

24 Construction Equipment Temporary Works Materials and Goods

24.1 Exclusive Use for the Works 35

24.2 Vesting 35

24.3 Employer Not Liable for Damage 35

24.4 Conditions for Hire of Construction Equipment 35

Removal 35 24.5 Revesting

and

24.6 Incorporation of Clause in Subcontracts 36

Responsibilities

25 General

25.1 Care of the Works 36

Risks 37

25.2 Excepted

Provisions

26 Indemnity

26.1 Injury to Persons 38

26.2 Damage to Property 38

26.3 Contractor to Rectify Damage 38

27 Insurance for Personal Injury, Work Injury Compensation and

Damage

Property

Policies 39 27.1 The

27.2 Damage to Property when Contractor Not Negligent 39

Insuring 40

in

27.3 Default

28 Insurance of the Works

28.1 Risks to be Insured 40

28.2 Application of Insurance Moneys 41

29 Damage to Property of Employer or Government

29.1 Costs of Making Good Damage Loss or Injury 42

Subcontracting

30 Assignment

and

30.1 Assignment by Contractor 43

30.2 Subcontractors 43

31 Termination by The Employer

31.1 Termination for Default 43

31.2 Effects of Termination for Default 45

31.3 Liquidated Damages after Termination 45

Default 46 31.4 Termination

without

32 Progress Payments and Final Account

32.1 Payment

Claims 47

Certificates 47 32.2 Payment

Certificates 48 32.3 Correction

of

32.4 Final Payment Claim 48

32.5 Interim Final Account, Final Account and Final Account Certificate 48

32.6 Period for Honouring Certificate 50

32.7 Claim and Payment of Goods and Services Tax 50

32.8 Delay in Certification 51

33 Fluctuations

Materials 51 33.1 Schedule

of

33.2 Payment 51

Delay 52

in

33.3 Contractor

Work 52

33.4 Sub-Contract

34 Final Completion Certificate

34.1 Time for Issue 52

Conclusive 52 not

34.2 Certificate

35 Settlement of Disputes

35.1 Reference to the Superintending Officer 52

35.2 Reference to Arbitration 53

35.3 Arbitration in Event of Termination 53

35.4 Powers of the Arbitrator 53

35.5 Reference to Adjudication 54

35.6 Mediation 54

36 Recovery by the Employer 54

37 Governing Law & Notices

37.1 Law 54

37.2 Notices 55 Option Module A Bills of Quantities

Option Module B Unused Materials or Goods not Delivered to Site

Option Module C Nominated Subcontractors

PUBLIC SECTOR

STANDARD CONDITIONS OF CONTRACT for Construction Works

1 DEFINITIONS AND INTERPRETATION

1.1 Definitions

In the Contract (as hereinafter defined) the following words and expressions shall have the meanings hereby assigned to them except where the context otherwise requires:

(a) "Appendix" means the appendix to these Conditions.

(b) "Claimed Amount" means the whole or part of any payment claimed by the Contractor in

a Payment Claim pursuant to Clause 32.1(1).

(c) "Conditions" means the Standard Conditions and Particular Conditions (if any) of

Contract for Construction Work contained in the Contract and Option Modules specified

in the Appendix.

(d) “Contract” means the Conditions and Appendix, the Specifications, Drawings, Schedule

of Rates (if any), Bills of Quantities (if any), the Tender, Letter of Acceptance,

Agreement and such other letters and documents as the parties may expressly identify in

writing and agree as forming part of the contract.

(e) "Contract Sum" means the lump sum set out in the Letter of Acceptance, and shall be

fixed subject only to adjustments expressly provided for in the Conditions.

(f) "Contractor" means the person or firm or corporation whose Tender has been accepted by

the Employer and includes the Contractor's legal personal representatives and any person

to whom the rights or liabilities of the Contractor have been assigned or transferred with

agreement in writing of the Employer under Clause 30.1.

(g) "Construction Equipment" means all equipment, apparatus and things of whatsoever

nature required for the execution and completion of both the Temporary Works and the

Permanent Works and the remedying of any defects therein, but does not include Plant,

materials, goods or work or other things intended to be part of the Works.

(h) "Contractor's Representative" means the person duly appointed pursuant to Clause 11.2 of

the Conditions.

(i)“Date of Substantial Completion” means the date stated in a certificate issued pursuant to

Clause 17.1 or Clause 17.3.

(j) "Defect" means any part of the Works not executed provided or completed in accordance with the Contract. For the avoidance of doubt and without limiting the generality of the

expression the term shall be taken to include any item of Plant, material, goods or work

incorporated or used in the Works which does not or may not conform to the relevant

quality standards or pass the tests prescribed in or to be inferred from the Contract.

(k) “Defects Liability Period” means the Defects Liability Period set out in the Appendix hereof, calculated from:

(i) the Date of Substantial Completion of the Works certified by the Superintending

Officer in accordance with Clause 17; or

(ii) in the event of more than one Certificate of Substantial Completion having been issued by the Superintending Officer under Clause 17, the respective Dates of

Substantial Completion so certified.

(l) "Drawings" means the drawings referred to in the Contract including such drawings which have been prepared by the Contractor and accepted by the Superintending Officer pursuant to Clause 6.2 and such other drawings as may from time to time be issued or accepted in writing by the Superintending Officer.

(m) "Employer" means the government or the statutory body specified in the Appendix.

(n) "Final Account Certificate" means the document issued by the Superintending Officer under Clause 32.5.

(o) “Final Payment Claim” means a claim for payment made by the Contractor pursuant to Clause 32.4(1).

(p) "Letter of Acceptance" means the formal acceptance by the Employer of the Tender.

(q) "Loss and Expense" means:

(i) the direct relevant costs of labour, Plant, materials, or goods actually incurred; and

(ii) costs of an overhead nature actually and necessarily incurred on the Site but in either case only in so far they would not otherwise have been incurred and which

were not and should not have been provided for by the Contractor; and (iii) 15% of any such costs, such 15% to be inclusive of and in lieu of any profits, head office or other administrative overheads, financing charges (including foreign

exchange losses) and any other costs, loss or expense of whatsoever nature and

howsoever arising.

(r) “Option Module” means an Option Module appearing at the end of the Conditions.

(s)"Payment Claim" means a claim for payment made by the Contractor pursuant to Clause

32.1(1).

a certificate issued by the Superintending Officer pursuant

means

(t) "Payment

Certificate"

to Clause 32.2(1) or Clause 32.5(1)(a) in response to a Payment Claim or Final Payment Claim made by the Contractor.

(u) "Permanent Works" means the works of a permanent nature (including Plant) to be executed in accordance with the Contract.

(v) "Plant" means machinery, apparatus and the like intended to form or forming part of the Permanent Works.

(w) "Provisional Sum Items" means items of work which shall only be executed or provided upon instruction in writing by the Superintending Officer who may decide that the work in whole or in part or not at all may be carried out by the Contractor.

(x) "Rates" means those in the Schedule of Rates or the rates and prices contained in Bills of Quantities, whichever is applicable, including any modifications or additions thereto

agreed in writing by the Employer and the Contractor.

(y)"Response Amount" means the amount that the Superintending Officer proposes to pay to the Contractor in the Payment Certificate issued pursuant to Clause 32.2(1).

(z) "Site" means the lands and other places on, in, under, over or through which the Works are to be executed or carried out or any other lands or places provided by the Employer

for the purposes of the Contract.

(aa) "Specifications" means all specifications contained in the Contract including any modifications or additions thereto as may from time to time be issued or approved in

writing by the Superintending Officer.

(ab) "Superintending Officer" means the person, firm or corporation appointed as such by the Employer for the purposes of the Contract.

Representative" means the person, appointed from time to time (ac) "Superintending

Officer's

by the Superintending Officer under Clause 2.2.

(ad) "Tender" means the Contractor's offer to the Employer to design (to the extent provided for by the Contract), execute and complete the Works for a lump sum as accepted by the

Letter of Acceptance.

(ae) "Temporary Works" means all works of a temporary nature of every kind (other than Construction Equipment) required or provided in or about the execution of the Works and

the remedying of any defects therein.

(af) "Time for Completion" means time or times for the completion of the Works or any phase or part of the Works set out in the Letter of Acceptance or Appendix subject to such

extension or extensions of time (if any) as the Contractor may be allowed under the

Contract.

(ag) "Works" means the Temporary Works and the Permanent Works, and where the context requires, a phase or part of the Works.

1.2 Singular and Plural

Words importing the singular also include the plural and vice versa where the context requires.

1.3 Headings and Marginal Notes

The headings and marginal notes in the Conditions shall not be deemed to be part of the Conditions or be taken into consideration in the interpretation or construction of the Conditions or of the Contract.

1.4 Joint and Several Liability

If the Contractor is a joint venture partnership, the individual partners or companies comprising the Contractor shall be deemed jointly and severally liable to the Employer under this Contract.

2SUPERINTENDING OFFICER AND SUPERINTENDING OFFICER'S REPRESENTATIVE

2.1 Superintending Officer's Authority

(1) The authority of the Superintending Officer shall be that stated in or necessarily to be

implied from the Contract. Any limitations on the authority of the Superintending Officer

are set out in the Appendix.

(2) Except as expressly stated in the Contract, the Superintending Officer shall have no

authority to relieve the Contractor of any of his obligations under the Contract.

2.2 Superintending Officer's Representative

The Superintending Officer's Representative shall be appointed by and be responsible to the Superintending Officer and shall carry out such duties and exercise such authority as may be delegated to him by the Superintending Officer under Clause 2.3.

2.3 Superintending Officer's Authority to Delegate

The Superintending Officer may from time to time delegate to the Superintending Officer's Representative any of the duties or functions vested in the Superintending Officer other than those listed in the Appendix pursuant to Clause 2.1 and he may at any time revoke such delegation. Any such delegation or revocation shall be in writing and shall not take effect until a copy of such delegation and/or revocation has been delivered to the Contractor. Any act done by the Superintending Officer's Representative in accordance with such delegation shall have the same effect as though it had been done by the Superintending Officer. Provided that:

(a) any failure of the Superintending Officer's Representative to disapprove any Plant,

materials, goods or work shall not prejudice the authority of the Superintending Officer to

disapprove such Plant, materials, goods or work and to give instructions for the

rectification of any such Plant, materials, goods or work;

(b) if the Contractor disputes any act of the Superintending Officer's Representative, he shall

refer the matter to the Superintending Officer who shall confirm, reverse or vary (as the

case may be) the act or decision of the Representative.

2.4 Appointment of Assistants

The Superintending Officer or the Superintending Officer's Representative may appoint in writing any number of persons to assist the Superintending Officer's Representative in the carrying out of his duties under Clause 2.2. The Contractor shall be notified in writing of the names, duties and authority (if any) of such assistants. Unless authorised in writing by the Superintending Officer, such assistants shall have no authority to issue any instructions to the Contractor save insofar as such instructions may be necessary to enable them to carry out their duties and to secure that the Plant, materials, goods or work are in accordance with the Contract.

2.5 Instructions by Superintending Officer

Instructions given by the Superintending Officer shall be in writing. Provided that if for any reason the Superintending Officer considers it necessary to give any such instruction orally, the Contractor shall comply with such instruction. Confirmation in writing of such oral instruction given by the Superintending Officer, whether before or after the carrying out of the instruction, shall be deemed to be an instruction within the meaning of this Clause. Provided further that if the Contractor, within 7 days, confirms in writing to the Superintending Officer any oral instruction of the Superintending Officer and such confirmation is not contradicted in writing within 7 days by the Superintending Officer, it shall be deemed to be an instruction of the Superintending Officer.

The provisions of this Clause shall equally apply to instructions given by the Superintending Officer's Representative and any assistants of the Superintending Officer or the Superintending Officer's Representative appointed pursuant to Clause 2.4.

2.6 Failure to Comply with Superintending Officer's Instructions

If the Contractor, after receipt of an instruction from the Superintending Officer or the Superintending Officer’s Representative, fails to comply with it within 14 days (or within such period as may be stipulated in the instruction):

(a) the Employer may employ and pay other persons to do whatever may be necessary to give

effect thereto and may recover the amount of any cost, loss, expense and damage incurred

or suffered in connection therewith;

(b) the amount of any other loss or damage suffered or incurred by the Employer as a result

of the Contractor's default shall be recoverable from the Contractor.

2.7 Urgent Repairs

If by reason of any accident or failure or other event occurring to or in connection with the Works, either during the execution of the Works or during the Defects Liability Period, any remedial or other work shall in the opinion of the Superintending Officer be urgently necessary and the Contractor is unable or unwilling at once to do such remedial or other work, the Superintending Officer may authorise the carrying out of such remedial or other work by a person other than the Contractor. If the remedial or other work so authorised by the Superintending Officer is work which in the opinion of the Superintending Officer the Contractor was liable to do or for which he was otherwise responsible under the Contract, the amount of any cost, loss, expense or damage incurred in carrying out the same shall be recoverable by the Employer from the Contractor.

2.8 No Obligation to Exercise Powers

(1) The Superintending Officer, the Superintending Officer's Representative or any assistant

appointed pursuant to Clause 2.4 shall at no time be under any obligation or duty to the

Contractor either on behalf of the Employer or his own account to exercise or not to

exercise any of his powers under the Contract, nor shall any failure to do so on his part in

any way prejudice the rights of the Employer against the Contractor or render the

Employer liable to the Contractor.

(2) The provisions of this Clause shall not affect the liability of the Employer for any act or

omission of the Superintending Officer, the Superintending Officer's Representative or

any assistant appointed pursuant to Clause 2.4 acting on behalf of the Employer within

the scope of the authority conferred on that person.

3 CONTRACT

DOCUMENTS

3.1 Contract Documents to be Taken as Mutually Explanatory

The several documents forming the Contract are to be taken as mutually explanatory of one another but in the event of any conflict or inconsistency between the Conditions and the other documents forming the Contract, the Conditions shall be given precedence. Within the Conditions, the Particular Conditions, if any, shall be given precedence.

3.2 Custody and Supply of Drawings and Documents

(1) The Drawings shall remain in the sole custody of the Superintending Officer but four

copies of the Drawings shall be provided to the Contractor free of charge. The Contractor

shall make at his own cost any further copies required by him. Unless it is strictly

necessary for the purposes of the Contract, the Drawings, Specifications and other

documents provided by the Employer or the Superintending Officer shall not, without the

consent of the Superintending Officer, be used or communicated to a third party by the

Contractor.

(2) The Contractor shall supply to the Superintending Officer six copies of all Drawings,

Specifications and other documents submitted by the Contractor and accepted by the

Superintending Officer in accordance with Clause 6.2, together with a reproducible copy

of any material which cannot be reproduced to an equal standard by photocopying. In

addition, the Contractor shall supply such further copies of such Drawings, Specifications

and other documents as the Superintending Officer may request in writing for the use of

the Employer, who shall pay the cost of such copies.

3.3 Drawings to be Kept on Site

One copy of the Drawings, provided to or supplied by the Contractor as aforesaid, shall be kept on the Site by the Contractor and the same shall at all reasonable times be available for inspection and use by the Superintending Officer and by any other person authorised by the Superintending Officer in writing.

3.4 Need for Further Drawings etc.

The Contractor shall give adequate notice in writing to the Superintending Officer:

(a) of any further drawing, specification or other information which the Superintending

Officer is required to provide under the Contract;

(b)of any drawing, specification, instruction or other information which is required by any

specific time, whenever the planning or execution of the Works is likely to be delayed or

disrupted by its lack, and whether or not the need for it is shown on any programme

accepted by the Superintending Officer under Clause 9.

The notice shall also state the consequences in terms of delay to the progress or completion of the Works or any part of the Works and any financial consequences should the Superintending Officer not comply with any of the requirements of the notice. The Superintending Officer shall on receipt of the notice comply with its requirements, provided that it is given in sufficient time for the Superintending Officer reasonably to prepare and issue the information required.

3.5 Further Supplementary Drawings etc. and Instructions

The Superintending Officer shall issue to the Contractor, from time to time, such further or revised drawings, specifications or instructions as may in his opinion be necessary for the purposes of the execution and completion of the Works. The Contractor shall carry out and be bound by the same.

3.6 Delay and Time

If:

(a) the Contractor shall have duly given notice pursuant to Clause 3.4 and if the Superintending

Officer shall not have complied with any of its requirements; or

(b) the Superintending Officer shall not have issued any further or revised drawing specification

or instruction as required by Clause 3.5,

and if thereby the progress or completion of the Works or any part of the Works has been materially affected then, subject to compliance by the Contractor with Clauses 14, 23 and 32, the Superintending Officer may grant an extension of time pursuant to Clause 14 and may certify pursuant to Clause 32 such sum as may be reasonable in respect of any Loss and Expense incurred by the Contractor.

4 GENERAL OBLIGATIONS OF THE CONTRACTOR

4.1 Contractor's General Responsibilities

The Contractor shall, with due care and diligence, design (to the extent provided for by the Contract), execute and complete the Works and remedy any defects in the Works in accordance with the provisions of the Contract and to the satisfaction of the Superintending Officer. The Contractor shall provide all superintendence, labour, Plant, Construction Equipment, materials, goods and all other things, whether of a temporary or permanent nature required in and for such design, execution, completion of the Works and remedying of any Defect. Nothing in this Clause shall affect the Contractor's responsibilities under common law to complete the Works.

4.2 Site Operations and Methods of Construction

The Contractor shall take full responsibility for the adequacy, stability and safety of all Site operations and methods of construction. Provided that the Contractor shall not be responsible (except as stated hereunder or as may be otherwise agreed in writing between the Employer and the Contractor) for the design of the Permanent Works or for the design of any Temporary Works not prepared by the Contractor or by any sub-contractor or supplier.

4.3 Contractor's Responsibility for Subcontractors

Save as otherwise expressly provided in the Contract, the Contractor shall make good any damage, loss or injury suffered by the Employer by reason of any breach of contract, repudiation, default or failure, whether total or partial, on the part of any subcontractor or supplier whether nominated or privately engaged by the Contractor, and shall indemnify the Employer against all and any loss, expense, costs, damages, liability or claim arising therefrom.

4.4 Responsibility for Identifying Ambiguities, Discrepancies, etc

(1) The Contractor shall forthwith notify the Superintending Officer in writing of any

ambiguity, discrepancy, conflict, inconsistency or omission in or between any of the

Contract documents that may at any time be found. The Superintending Officer insofar as

it may affect the execution or completion of the Works shall then explain and adjust it and

may issue to the Contractor an instruction so as to resolve the ambiguity, discrepancy,

conflict, inconsistency or omission. If, in the opinion of the Contractor, compliance with

any such instruction is likely to or has involved the Contractor in any Loss and Expense

which could not have been reasonably foreseen by an experienced contractor (assuming a

diligent perusal of the documents submitted prior to Contract), the Contractor shall

forthwith notify the Superintending Officer in writing and subject to compliance by the

Contractor with Clauses 14, 23 and 32, the Superintending Officer may grant an extension

of time pursuant to Clause 14 and may certify pursuant to Clause 32 such sum as may be

reasonable in respect of such Loss and Expense.

(2) In the event that instructions issued by the Superintending Officer to resolve such

ambiguity, discrepancy, conflict, inconsistency or omission result in a reduction in the

Contract Sum, such reduction shall be determined in accordance with Clause 20 and the

Superintending officer shall be entitled to reduce any valuation of the Works made under

Clause 32 accordingly.

(3) Nothing in Clause 4.4(1) or the Contract shall entitle the Contractor to an extension of

time or Loss and Expense or any other compensation or remedy whatsoever (whether

pursuant to the Contract or as damages or otherwise in law) for any ambiguity,

discrepancy, conflict, inconsistency or omission in any of the documents which could

have been found prior to the date of the Letter of Acceptance and the Contractor shall be

deemed to have found it and to have entered into the Contract with full knowledge of it

and of any resolution of it.

4.5 Security Deposit

(1) Within 14 days of the Letter of Acceptance or such other longer period as may be

prescribed by the Employer in the Appendix, the Contractor shall deposit with the

Employer an amount specified in the Appendix and by way of security for the due

performance of and observance by the Contractor of his obligations under the Contract.

(2)The Contractor may, in lieu of the cash deposit in Clause 4.5(1) and for the same

purposes, provide a guarantee for an equivalent amount from a Monetary Authority of

Singapore (MAS)-approved bank or MAS-approved insurance company and in the

prescribed form.

(3) The term “Security Deposit” shall hereafter refer to:

(i) the cash deposited under Clause 4.5(1); or

(ii) the cash proceeds of any or all demands on the guarantee provided pursuant to

Clause 4.5(2).

The Employer may utilise the Security Deposit to make good any loss or damage

sustained or likely to be sustained as a result of any breach of contract whatsoever by the

Contractor, including any liquidated damages. If the amount of the Security Deposit

utilised by the Employer to make good any such loss or damage is found to be greater

than the amount of loss or damage actually sustained by the Employer, then the Employer

shall pay the balance of the amount utilised by the Employer without the addition of

interest to the Contractor or to the bank or insurer, as the case may be, upon issue of the

Final Completion Certificate. Where the Security Deposit is made in cash, the Employer

shall pay to the Contractor the unutilised amount without interest upon the issue of the

Final Completion Certificate.

(4) The provisions of this Clause shall not affect the rights and remedies expressly reserved

herein to the Employer or bar the Employer from claiming loss, expense, costs or

damages incurred or sustained or likely to be sustained by the Employer as a result of any

breach of contract of whatsoever nature by the Contractor.

4.6 Sufficiency of Tender

Subject to Clause 5.2, the Contractor shall be deemed to have satisfied himself before submitting the Tender as to the correctness and sufficiency of the Tender which shall be deemed to cover all his obligations under the Contract and all matters and things necessary for the proper construction and completion of the Works.

4.7 Patents, Trademarks, Copyrights, etc

The Contractor shall defend, indemnify and save harmless the Employer from and against all claims and proceedings for or on account of infringements of any patent rights, design, trademark name or copyright or other protected rights in respect of any Construction Equipment, Plant, materials, goods or design (submitted by the Contractor pursuant to his obligations under the Contract) used for or in connection with or for incorporation in the Works and from or against all loss, expense, costs or damages whatsoever in respect of such claims or proceedings or in relation thereto, except where such infringement results from compliance with the design or Specifications provided by the Superintending Officer.

5 SUB-SURFACE AND GROUND CONDITIONS

5.1 Inspection of Site and Geotechnical Information

The Contractor shall be deemed to have inspected and examined the Site and its surroundings and to have satisfied himself before submitting the Tender as to the nature of the ground and sub-soil and the form and nature of the Site. Geotechnical information obtained from site investigation, reports, publications and/or journals concerning the site may be provided by the Employer. The provision of the geotechnical information by the Employer shall not relieve the Contractor from the responsibility of carrying out his own investigation and/or search for existing and other additional geotechnical information relevant to the Site.

5.2Adverse Physical Conditions

If the Contractor shall encounter adverse physical conditions (other than weather conditions or effects due to weather conditions on the Site) in the course of carrying out sub-surface works, which adverse physical conditions could not have been reasonably foreseen by an experienced contractor and the Contractor is of the opinion that additional cost will be incurred which would not have been incurred if such adverse physical conditions had not been encountered, he shall if he intends to make any claim forthwith give notice in writing to the Superintending Officer pursuant to Clauses 14 and 23. As soon as possible thereafter, the Contractor shall give details of the anticipated effects of such adverse physical conditions the measures he is taking or is proposing to take and the extent of the anticipated delay in or interference with the execution of the Works. If, in the opinion of the Superintending Officer, such adverse physical conditions could not have been reasonably foreseen by an experienced contractor, then subject to compliance by the Contractor with Clauses 14, 23 and 32 the Superintending Officer may grant an extension of time pursuant to Clause 14 and may certify pursuant to Clause 32 such sum as may be reasonable in respect of such Loss and Expense (but not including any loss, expenses, costs or damages which are the Contractor’s responsibility under Clause 4.2) to which the Contractor shall have been put by reason:

(a) of complying with any instruction which the Superintending Officer may issue to the

Contractor in connection therewith; and

(b) of any proper and reasonable measures approved by the Superintending Officer which the

Contractor may take in the absence of specific instructions from the Superintending

Officer.

For the purpose of this Clause, adverse physical conditions shall be deemed to include unforeseen sub-surface and ground conditions and all underground services which are in use. The cost of diversion of underground services would be borne by the Employer unless otherwise specified.

5.3 Underground Services

Information on underground services obtained from the relevant service providers may be provided by the Employer. The provision of the information on underground services shall not relieve the Contractor from the responsibility of engaging licensed cables/services detection workers to carry out all cables/services detection work. In the event of any damage to the underground services, the Contractor shall be liable for all costs and charges incurred.

6 PERMANENT WORKS DESIGNED BY THE CONTRACTOR 6.1 Contractor's Design Responsibility

Where the Contract expressly provides that the whole or any part of the Permanent Works shall be designed by the Contractor, he shall be fully responsible for the suitability, adequacy, integrity, durability and practicality of the design as set out in the Drawings, Specifications, manuals, calculations and other information submitted for the acceptance of the Superintending Officer under Clauses 6.2 and 6.3, including any subsequent amendment of such design.

6.2 Submission of Documents Prior to Commencement

Where the Contract expressly provides that the whole or any part of the Permanent Works shall be designed by the Contractor, the Contractor shall not proceed with the execution of the same until he has submitted to the Superintending Officer such Drawings, Specifications, manuals, calculations and other information as shall be necessary to demonstrate the suitability, adequacy, integrity, durability and practicality of such design and the Superintending Officer has issued his acceptance in writing of such design. Acceptance by the Superintending Officer of such submission shall not relieve or in any way limit the responsibility of the Contractor under Clause

6.1.

6.3 Submission of Documents after Completion

Upon the Date of Substantial Completion (or the latest Date of Substantial Completion if there is more than one Date of Substantial Completion), the Contractor shall submit for the acceptance of the Superintending Officer operation and maintenance manuals together with Drawings of the Permanent Works designed by the Contractor as completed in sufficient detail to enable the Employer to operate, maintain, dismantle, reassemble and adjust the Permanent Works incorporating such design.

6.4 Amendment and Modification of Accepted Design

The Superintending Officer may instruct the Contractor at any time, before, during or after the execution or completion of the Works to amend or modify the design provided by the Contractor in respect of any deficiency of any kind or nature discovered by the Superintending Officer and to carry out such work as is necessary to give effect to such amended or modified design in accordance with the Superintending Officer's instruction. All work necessary (including re-design work) or variations required as a result of such an instruction and their costs shall be the entire responsibility of and shall be borne by the Contractor.

7 NOTICES AND FEES

7.1 Generally

The Contractor shall comply with and give notices required by any law, regulation or by-law, or by any public authority or public service company, relating to the Works or, in the case of a public authority or public service company, with whose systems the same are or will be connected. The Contractor shall pay and indemnify the Employer against any fees or charges imposed by law, regulation or by-law, or by any public authority or public service company in respect of the Works.

7.2 Variations Arising from Compliance

The Contractor shall, before making any variation from the Drawings and Specifications necessitated by the compliance with Clause 7.1, give to the Superintending Officer notice in writing specifying and giving the reasons for such variation and applying for instructions in reference thereto. Provided that if the Contractor does not receive instructions from the Superintending Officer within 7 days from the date of the receipt of his application by the Superintending Officer, he shall proceed with the Works conforming to the law, regulation, by-law or requirements of the public authority or public service company in question. Any variation necessitated as aforesaid which could not have been reasonably foreseen by an experienced contractor at the time of submission of the Tender (and if it is not required by or in consequence of any deficiency or fault in the design of any part of the Works for which the Contractor is responsible under the Contract) shall be deemed a variation under Clause 19 and dealt with as such.

7.3 Cost of Compliance

The Contractor shall be wholly responsible for compliance with the requirements of any law, regulation, by-law or public authority as stipulated in Clause 7.1 notwithstanding that such written law is enforced by the Employer or that such public authority is, or is part of, the Employer. The Employer shall be deemed not to be responsible or liable for:

(a) any costs imposed by any requirements of any law, regulation, by-law or public authority;

or

(b) any default or delay by any public authority in the enforcement or implementation of any

law, regulation or by-law.

SEC-L07-001.1-利用口令猜测与网络窃听进行口令破解资料

SEC-L07-001.1 利用口令猜测与网络窃听进行口令破解 2010年4月

实验课件摘要 技术背景: 口令破解,做为黑客常用的攻击手段之一,在攻击阶段实现了口令的暴力猜测、 信息窃取。精心构造的口令字典、口令强度较低的账户、性能强劲的运算系统, 能够快速、有效地完成口令破解。 口令破解技术主要分为3类:本地破解、在线破解、口令窃听。这些做为简单、 常用、直接的黑客攻击手段,我们很有必要了解这种技术! 实验目的: 口令破解、窃听口令、口令字典 实验平台 攻击机(客户端):Windows2000/XP/2003、Linux 被攻击机(服务端):Linux Server 实验工具: Nmap

L0phtCrack、John the Ripper Brutus、Hydra、Spcrk 流光、X-Scan、超级字典生成器.、黑客字典II Tcpdump、Wireshark、Cain 实验要点: ●黑客字典生成技术; ●本地口令文件暴力破解; ●远程服务在线口令暴力破解; ●网络传输明文口令信息窃听;

实验步骤指导: 生成暴力字典 推荐工具:超级字典生成器 1.说明:使用字典生成工具可以快速生成复杂的单词、数字、特殊符号组成的 字典,攻击者可以根据条件生成想要的各种字典,从而提高暴力猜测的速度。 2.运行“超级字典生成器”,程序界面如下图: 3.根据个人需求,选择相关选项生成字典; 字典生成要求: 生成以a-z小写字母组成,长度为3位,3位字母不重复的账户字典,文件保存为 user.txt; 请生成4位0-9数字组成的密码字典,文件保存为pass.txt;

SolidWorks和cad快捷键大全

SolidWorks快捷键 旋转模型新建SolidWorks 文件Ctrl+N 旋转模型 水平或竖直方向键打开文件Ctrl+O 水平或竖直方向键 水平或竖直90 度Shift+方向键从WEB 文件夹打开Ctrl+W 水平或竖直90 度Shift+方向键 顺时针或逆时针Alt+左或右方向键保存Ctrl+S 顺时针或逆时针Alt+左或右方向键 平移模型Ctrl+方向键打印Ctrl+P 平移模型Ctrl+方向键 放大Z 额外快捷键放大Z 缩小z 在PropertyManager 或对话框中访问在线帮助F1 缩小z 整屏显示全图f 整屏显示全图f 上一视图Ctrl+Shift+Z 在FeatureManager 设计树中重新命名一项目(对大部分项目适用) F2 上一视图Ctrl+Shift+Z 视图定向视图定向 视图定向菜单空格键视图定向菜单空格键 前视Ctrl+1 重建模型Ctrl+B 前视Ctrl+1 后视Ctrl+2 强使重建模型及重建其所有特征Ctrl+Q 后视Ctrl+2 左视Ctrl+3 左视Ctrl+3 右视Ctrl+4 重绘屏幕Ctrl+R 右视Ctrl+4 上视Ctrl+5 在打开的SolidWorks 文件之间循环Ctrl+Tab 上视Ctrl+5 下视Ctrl+6 下视Ctrl+6 等轴测Ctrl+7 直线到圆弧/圆弧到直线(草图绘制模式)a 等轴测Ctrl+7 选择过滤器? 选择过滤器? 过滤边线e 撤消Ctrl+z 过滤边线e 过滤顶点v 剪切Ctrl+x 过滤顶点v 过滤面x 复制Ctrl+c 过滤面 . 切换选择过滤器工具栏F5 粘贴Ctrl+v 切换选择过滤器工具栏F5 切换选择过滤器(开/关) F6 删除Delete 切换选择过滤器(开/关) F6 下一窗口Ctrl+F6 CAD常用快捷命令: L————直线 C————圆 REC————矩形 O————便移 M————移动 CO————复制 RO————旋转 T————文字

(完整word版)Solidworks心得体会

Solidworks心得体会 为期一周的solidworks设计已接近尾声,在这短短的一周里我们再次熟悉了运用平时学的solidworks课程,从中体会到了这种绘图系统的实用性。同时也感觉到,绘图作为机械设计过程中设计思想的载体,具备良好的绘图能力,是一个优秀的设计人员所具备的最基本素质。显然这次solidworks三维计算机辅助设计训练对于我们来说,为我们将来为从事设计打下了坚实的基础。 在平时上课都是老师给我们的一些基本操作做了演示,然后我们我在学习solidworks还是比较慢。因为以前没有接触过,学习基本是老师教的,陆续又借了些相关的书籍,看了相关solidworks的在线视频指导,熟悉了就开始画一些简单的图形。按照书上的教学方法一步一步的熟悉着画,半年的学习让我们对 solidworks 的掌握越来越娴熟,在这一周里进一步的让我们掌握了 solidworks 的使用。 在solidworks中,各种零件可由无数重方法生成,但制作时应选择最简便,迅速的方法.草图越简单越好.因为这样不仅提高效率,更重要的是减轻计算机的负担,零件的草图又多又复杂,等多个零件装配时会严重影响运行速度!提高这方面技能的方法就是多画图。学习solidworks中碰到很多困难的,在此过程有感谢老师和同学的帮助。 通过这次的solidworks实训,我认识到了熟练掌握solidworks的重要性,同时也认识到了自己存在的一些问题,这段时间,尽管每天都要学习,但是如果学习不连续下来,学习很难在短期内有大的提高;平时要有自学能力,许多网上对初学者和提高者及高级专业人士有相应的教学.学起事半功倍了;在学solidworks 的过程中,要不断的学习其它相关联的知识,只有这样做你才能有所进步,不但solidworks很快上手,就是其它同类软件也很快上手,因为你有相当的理论,知道它的原理与实质;最后我认为交流对学习很重要.碰到不会的问题,可以请教同学,问老师是最好的方式之一!多看看身边的人是怎么画的,这样一定会有惊喜的收获,记得取长补短.

solidwork快捷键

旋转模型:水平或竖直:方向键;水平或竖直90 度:Shift+方向键;顺时针或逆时针:Alt+左或右方向键 平移模型:Ctrl+方向键 放大:Z 缩小:z 整屏显示全图:f 上一视图:Ctrl+Shift+Z 视图定向菜单:空格键 前视:Ctrl+1 后视:Ctrl+2 左视:Ctrl+3 右视:Ctrl+4 上视:Ctrl+5 下视:Ctrl+6 等轴测:Ctrl+7 正视于:Ctrl+8 过滤边线:e 过滤顶点:v 过滤面:x 切换选择过滤器工具栏:F5 切换选择过滤器(开/关):F6 新建文件:Ctrl+N 打开文件:Ctrl+O 从WEB 文件夹打开:Ctrl+W 从零件制作工程图:Ctrl+D 从零件制作装配体:Ctrl+A 保存:Ctrl+S 打印:Ctrl+P 重复上一命令:Enter 在PropertyManager 或对话框中访问在线帮助:F1 在FeatureManager 设计树中重新命名一项目(对大部分项目适用):F2 展开或折叠FeatureManager设计树:c 重建模型:Ctrl+B 强使重建模型及重建其所有特征:Ctrl+Q 重绘屏幕:Ctrl+R (数控技术网https://www.360docs.net/doc/b3703242.html,) 在打开的SolidWorks 文件之间循环:Ctrl+Tab 直线到圆弧/圆弧到直线(草图绘制模式):a 撤消:Ctrl+z 剪切:Ctrl+x 复制:Ctrl+c

粘贴:Ctrl+v 删除:Delete 下一窗口:Ctrl+F6 关闭窗口:Ctrl+F4 后视CTRL 2 重建模型CTRL B 底视CTRL 6 Redraw CTRL R 复制CTRL C 右视CTRL 4 剪切CTRL X 保存CTRL S 删除Delete 选择边E Forced Rebuild CTRL Q 选择面X 前视CTRL 1 选择顶视V 帮助Shift F1/F1 打开/关闭选择过滤器F5 (Toolbar) 左视CTRL 3 切换选择过滤器F6 顶视CTRL 5 新建CTRL N Undo CTRL Z 打开CTRL O 视图对话框SpaceBar 粘贴CTRL V 放大Shift Z 前一视图CTRL Shift Z 缩小Z 打印CTRL P 缩放到屏幕F 上下二等角轴测CTRL 7 新建Ctrl+N 打开Ctrl+O 关闭Ctrl+W 保存Ctrl+S 打印Ctrl+P 浏览最近文档R 撤销Ctrl+Z 恢复Ctrl+Y 重复上一命令Enter 剪切Ctrl+X

SW学习心得

引导线和路径和轮廓的建立一条线一个草图引导线两条就建两个草图 "不能生成此特征,因为这将导致厚度为零的几何体"为什么 不知道楼主的具体模型是怎样的,下面举两个例子,不知能否说明楼主的问题 下图中如果孔正好与一边向切,红圈处就会产生零厚度。现在将边线移动了0.00001,就避免了零厚度。 下图中,底下一个边长100的方块,上面是两个边长50的方块,就会在红圈处产生零厚度。现在将上面方块处的边长缩小0.00001,就避免了零厚度。

可见产生零厚度错误是因为在模型上确实产生了在计算机精度上反映出厚度为零的现象。有趣的是在第2个例子中,我们发现了一个能不产生零厚度的办法。见下面链接 扫描引导线先建引导线和路径线一条线一个草图但在同一基准面然后确定轮廓线在不同基准面 重合不一定穿透但是穿透一定重合 CAM软件通过计算机将你想要加工的模型进行编程,出刀路,到机床上进行实切的编程工具,有些简单的程序通过手工编程就可以,但是一些复杂的模型需要通过这类的软件实现编程进而加工出来。CAM这类数控编程软件很多,hypermill,powermill,UG,catia,edgecam,mastercam,cimtron,......等等IGS保存格式机械三维软件通用 MASTERCAM FOR SOLIDWORKS) Solidworks的黄金伴侣其实是CAMworks,不仅能快速建模还能很快的提取加工特征。它的2.5轴铣削,3轴铣削,多轴铣削,镗孔,数控车,线切割功能很好很方便 CAM软件通过计算机将你想要加工的模型进行编程,出刀路,到机床上进行实切的编程工具,有些简单的程序通过手工编程就可以,但是一些复杂的模型需要通过这类的软件实现编程进而加工出来。CAM这类数控编程软件很多,hypermill,powermill,UG,catia,edgecam, mastercam,Cimatron,......等等

口令破解与防御技术-Windows本地密码破解(Ic)实验

默认登录,然后会要求创建一个新账户,以进入Windows XP时使用此新建账户登录,而且在Windows XP的登录界面中也只会出现创建的这个用户账号,不会出现“administrator”,但实际上该“administrator”账号还是存在的,并且密码为空。 当我们了解了这一点以后,假如忘记了登录密码的话,在登录界面上,按住Ctrl+Alt键,再按住Del键二次,即可出现经典的登录画面,此时在用户名处键入“administrator”,密码为空进入,然后再修改“zhangbp”的口令即可。 方法2——删除SAM文件(注意,此法只适用于WIN2000) Windows NT/2000/XP中对用户帐户的安全管理使用了安全帐号管理器(Security Account Manager , SAM)的机制,安全帐号管理器对帐号的管理是通过安全标识进行的,安全标识在帐号创建时就同时创建,一旦帐号被删除,安全标识也同时被删。安全标识是唯一的,即使是相同的用户名,在每次创建时获得的安全标识完全不同。因此,一旦某个帐号被用户名重建帐号,也会被赋予不同的安全标识,不会保留原来的权限。安全帐号管理器的具体表现就 是%SystemRoot%system32configsam文件。SAM文件是Windows NT/2000/XP的用户帐户数据库,所有用户的登录名以及口令等相关信息都会保存在这个文件中。 知道了这些,我们的解决办法也产生了:删除SAM文件,启动系统,它会重建一个干净清白的SAM,里面自然没有密码了。 不过,这么简单的方法在XP是不适用的,可能微软以此为BUG,做了限制……所以现在在XP系统下,即使你删除了SAM,还是不能删除密码,反而会使系统启动初始化出错,从而进入死循环而不能进系统! 方法3——从SAM文件中找密码(前提……会使用DOS基本命令就行)在系统启动前,插入启动盘,进入:C:WINNTSystem3Config 用COPY命令将SAM文件复制到软盘上。拿到另一台机子读取。这里需要的工具是LC4,运行LC4,打开并新建一个任务,然后依次击“IMPORT →Import from SAM file”,打开已待破解的SAM文件,此时LC4会自动分析此文件,并显示出文件中的用户名;之后点击“Session→Begin Audit”,即可开始破解密码。如果密码不是很复杂的话,很短的时间内就会得到结果。 不过,如果密码比较复杂的话,需要时间会很长,这时我们就需要用下面的方法了。 方法4——用其他SAM文件覆盖(前提是你可以得到另外一台电脑的SAM文件和它的密码) 1—如上所说,SAM文件保存着登录名以及口令,那么我们只要替换SAM文件就是替换登录名以及口令了。不过,这个替换用的SAM文件的“产地”硬盘分区格式要和你的系统一样(看是FAT32还是NTFS,你自己确认)。最好这个“产地”的系统没有设密码,安全方面设置没

SolidWorks 快捷键大全

文件(F)新建(N)..Ctrl+N 文件(F)打开(O)..Ctrl+O 文件(F)关闭(C)..Ctrl+W 文件(F)从装配体制作工程图(E).. 文件(F)从装配体制作装配体(K).. 文件(F)出版 eDrawings 文件(B).. 文件(F)保存(S)..Ctrl+S 文件(F)另存为(A).. 文件(F)保存所有(E).. 文件(F)派生零部件(E).. 文件(F)重装(R).. 文件(F)替换(P).. 文件(F)查找相关文件(F).. 文件(F)页面设置(G).. 文件(F)打印预览(V).. 文件(F)打印(P)..Ctrl+P 文件(F)Print3D.. 文件(F)打包(K).. 文件(F)发送(D).. 文件(F)属性(I).. 文件(F)出版到 3DVIA.. 文件(F)文件(E).. 文件(F)浏览最近文档(R).. 文件(F)退出(X).. 编辑(E)撤消(U)..Ctrl+Z 编辑(E)恢复..Ctrl+Y 编辑(E)重复上一命令(E)..Enter 编辑(E)剪切(T)..Ctrl+X 编辑(E)复制(C)..Ctrl+C 编辑(E)粘帖(P)..Ctrl+V 编辑(E)删除(D)..Delete 编辑(E)复制到 Adobe Illustrator(C).. 编辑(E)重建模型(R)..Ctrl+B 编辑(E)退回(L).. 编辑(E)退回到前.. 编辑(E)退回到尾.. 编辑(E)隐藏(H) 编辑(E)当前显示状态(C).. 编辑(E)所有显示状态(A).. 编辑(E)指定的显示状态(S).. 编辑(E)显示(W) 编辑(E)当前显示状态(C).. 编辑(E)所有显示状态(A).. 编辑(E)指定的显示状态(S).. 编辑(E)带从属部件一起显示(P) 编辑(E)当前显示状态(C).. 编辑(E)所有显示状态(A).. 编辑(E)指定的显示状态(S).. 编辑(E)零部件显示 编辑(E)线架图

Solidworks实习报告

Solidworks上机实习报告 名称: Solidworks上机实习 院系:材料工程学院 班级: 0531124 学号: 053112428 姓名:曹璠 教师:廖秋慧

目录 一.实习内容 (3) 二.产品介绍 (2) 三.产品建模过程介绍 (4) 3.1设计思路 (5) 3.2设计过程 (6) 3.2.1 泵盖(拉伸、旋转、筋、镜像、螺旋线、扫描切除、圆角和异型孔) (6) 3.2.2 泵体(拉伸、切除、旋转、筋、镜像、阵列、扫描、放样、异型孔) (7) 3.2.3 主动轴(旋转、拉伸、拉伸切除、圆角、螺纹螺旋线、扫描切除) (7) 3.2.4 从动轴(拉伸、旋转、倒角) (8) 3.2.5 主、从动齿轮(拉伸、拉伸切除、旋转、放样、放样切除、倒角) (9) 3.2.6 填料压盖(拉伸、旋转、镜像、倒角) (9) 3.2.7 键和轴(衬)套(拉伸、拉伸切除、旋转、圆角、倒角) (10) 3.2.8其他零件(拉伸、拉伸切除、旋转、扫描、倒角、放样) (11) 3.3齿轮油泵装配及工程图 (13) 3.4填料压盖上下模 (14) 四.设计心得 (14) 五. 设计心得 (16)

一、实习内容: 在本次材料成型CAD上级实习中,我们主要学习了SolidWorks软件的基本建模过程及操作,并且利用SolidWorks软件进行产品三维模型的建立。 Solidworks软件功能强大,组件繁多。Solidworks功能强大、易学易用和技术创新是SolidWorks 的三大特点,使得SolidWorks 成为领先的、主流的三维CAD解决方案。SolidWorks 能够提供不同的设计方案、减少设计过程中的错误以及提高产品质量。SolidWorks 不仅提供如此强大的功能,同时对每个工程师和设计者来说,操作简单方便、易学易用。 对于熟悉微软的Windows系统的用户,基本上就可以SolidWorks 来搞设计了。SolidWorks独有的拖拽功能使用户在比较短的时间内完成大型装配设计。SolidWorks资源管理器是同Windows资源管理器一样的CAD文件管理器,用它可以方便地管理CAD文件。使用SolidWorks ,用户能在比较短的时间内完成更多的工作,能够更快地将高质量的产品投放市场。在目前市场上所见到的三维CAD解决方案中,SolidWorks是设计过程比较简便而方便的软件之一。美国著名咨询公司Daratech所评论:“在基于Windows平台的三维CAD软件中,SolidWorks是最著名的品牌,是市场快速增长的领导者。强大的设计功能和易学易用的操作(包括Windows风格的拖/放、点/击、剪切/粘贴)协同下,使用SolidWorks ,整个产品设计是可百分之百可编辑的,零件设计、装配设计和工程图之间的是全相关的。

实验02:Windows安全配置与口令破解

实验二 Windows安全配置与口令破解 [实验目的] 1、掌握Windows安全配置基本方法; 2、学习Windows口令破解方。; [实验环境] 1、PC机一台,安装有Windows 2003 server; 2、Vmware软件一套,安装有Windows 2000; 3、FindPass.exe和pulist.exe软件。 [基础知识] 一、Windows 2000安全配置方法 Windows2000 真的那么不安全么?其实,Windows2000 含有很多的安全功能和选项,如果你合理的配置它们,那么windows 2000将会是一个很安全的操作系统。 具体清单如下: 基础部分 1. 物理安全 服务器应该安放在安装了监视器的隔离房间内,并且监视器要保留15天以上的摄像记录。另外,机箱,键盘,电脑桌抽屉要上锁,以确保旁人即使进入房间也无法使用电脑,钥匙要放在另外的安全的地方。 2. 停掉Guest 帐号 在计算机管理的用户里面把guest帐号停用掉,任何时候都不允许guest 帐号登陆系统。为了保险起见,最好给guest 加一个复杂的密码,你可以打开记事本,在里面输入一串包含特殊字符,数字,字母的长字符串,然后把它作为guest帐号的密码拷进去。 3.限制不必要的用户数量 去掉所有的duplicate user 帐户, 测试用帐户, 共享帐号,普通部门帐号等等。用户组策略设置相应权限,并且经常检查系统的帐户,删除已经不在使用的帐户。这些帐户很多时候都是黑客们入侵系统的突破口,系统的帐户越多,黑客们得到合法用户的权限可能性一般也就越大。国内的nt/2000主机,如果系统帐户超过10个,一般都能找出一两个弱口令帐户。我曾经发现一台主机197个帐户中竟然有180个帐号都是弱口令帐户。 4.创建2个管理员用帐号 虽然这点看上去和上面这点有些矛盾,但事实上是服从上面的规则的。创建一个一般权限帐号用来收信以及处理一些日常事物,另一个拥有Administrators 权限的帐户只在需要的时候使用。可以让管理员使用

Solidworks常用快捷键

Solid works快捷键 常用 直线L 直线圆弧切换(草图绘制模式) A 任务窗格Ctrl+F1 查找替换Ctrl+ S 重复上一命令Enter 多选Ctrl+单击(Shift+单击也可以但不能减选) 串选随时右键 选择中点同串选 浏览最近文档R 从WEB文件夹打开Ctrl+ W 快速捕捉F3 拼写检验程序F7 特征管理员区域F9 工具栏F10 全屏F11 重绘屏幕Ctrl+ R 重建模型Ctrl+ B 强迫重建模型及其所有特征Ctrl+ Q 在打开的Solid Works文件之间循环Ctrl+ Tab 展开或折叠Feature Manager设计树 C 折叠所有项目Shift+ C 下一边线N 快捷栏S 选择边 E 选择面X 接受边线Y 选择顶视V 从零件制作装配体Ctrl+ A 从零件制作工程图Ctrl+ D 移动草图 旋转模型水平或竖直方向键或使用鼠标中间按键来拖动 水平或竖直90 度Shift+方向键 顺时针或逆时针Alt+左或右方向键 平移Ctrl+方向键或Ctrl+鼠标中键拖动(在激活的工程图中,不需按住Ctrl 键)顺时针或逆时针Alt+左或右方向键 旋转模型 水平或竖直方向键 水平或竖直90度Shift+方向键 视图 缩放按住Shift 键并使用鼠标中键来拖动 放大Shift+ Z

缩小Z 整屏显示全图 F 视图对话框Space 上下二等角轴测CTRL+ 7 上一视图Ctrl+ Shift+ Z 顶视CTRL 前视Ctrl+1 后视Ctrl+2 左视Ctrl+3 右视Ctrl+4 上视Ctrl+5 下视Ctrl+6 等轴测Ctrl+7 正视与Ctrl+8 下一窗口Ctrl+F6 关闭窗口Ctrl+F4 过滤器过滤边线 E 过滤顶点V 过滤面X 切换选择过滤器工具栏F5 切换选择过滤器F6

dos命令及破解windows密码

2010年最新破windows密码: 1.BIOS没设密码:按F8进命令行的安全模式的cmd,输入:net user (name) (password) /add 回车:新建用户,重起。 2.BIOS设密码:进光盘启动,用C:\WINDOWS\repair\sam,代换C:\wiindows\system32\config\sam 解谜: (一)远程获取 系统管理员帐号administrator密码丢失、无其它可登陆用户帐号、无输入法漏洞等可利用漏洞,无法取得SAM文件、无输入法漏洞。提供IIS服务等,并有若干漏洞。 所需工具:GFI LANguard Network Scanner(或其它同类漏洞扫描软件) 其它:待破解系统处于局域网中。 1、猜解密码 通过网络连到机器 利用IP地址(流光,猜举方式,字典文件存有常见密码) 2、漏洞BUG利用 对于不同的漏洞可以使用不同的方法入侵,进而取得对系统的控制。 A、输入法漏洞 只在中文的Windows 2000SP1前中有。 切换输入法,帮助,输入法入门,工具栏空白处右击,跳转至c:\,右拖文件创建快捷方式,目标处输入c:\winnt\system32\net user administrator 123双击执行,更改密码,登录。 或者创建新用户,c:\winnt\system32\net user mmm 456 /add。执行。 加入管理员组,c:\winnt\system32\net.exe localgroup administrator mmm /add。 解决办法:删除帮助,打SP1。 B、IIS漏洞 IDQover.exe(利用应用程序缓冲区溢出漏洞,正向连接和反向连接两种方式)SP2以后无此漏洞。入侵成功后,利用返回的SHELL(一般用CMD.exe)使用 TELNET。 查看本机已经启用的端口netstat -na(1023以内占用较多) NC.exe(反向连接)sp3后无。 C、服务漏洞 D、系统漏洞 3、D.O.S. 4、特洛伊木马:服务木马,一般在前期入侵成功,以种服务的方式,在系统中留后门。 5、邮件病毒 (二)本地用户即可触摸到计算机! 如果是本地用户的话:一般win-xp系统安装时都会要求添加用户,所以一般情况可登陆的用户有默认的administator和你安装时候添加的用户,其中administator是默认的系统管理员,添加的用户可以是管理员,也可以是普通用户。针对不同情形可考虑以下措施: 1、如果你想获得用户比如juntuan的密码,而安装时系统用户administator没设置密码,那么可在登录界面上,按住Ctrl+Alt键,再按住Del键一次或二次,即可出现经典的登录画

solidworks使用心得

solidworks使用心得 SolidWorks 常见问题安装问题 Q1:怎样修改,修复或删除已有SolidWorks软件的安装? A:在退出SolidWorks的状态下,于控制面板中双击添加或删除程序,选择Solidworks,单击更改或删除来对软件进行 相应的更改;若跳过该步可进行程序维护,包括修改和修复程序。 Q2:SolidWorks怎么进行激活? A:在安装完成软件后需要进行软件的激活,激活方式有两种:通过英特网自动激活与通过电子邮件手工激活。通过英 特网自动激活时需要安装正确的授权序列号,并填写相应的客户信息,在连接互联网状态下即可以完成 自动激活;若通过电子邮件激活,单击保存生成文件,然后将文件发送到 。当您收到许可密匙 时,再次运行激活过程并单击打开以装载相应文件。激活/重新激活成功对话框显示所有已成功激活的 产品。 Q3: 什么是网络许可?网络许可有什么特殊的表现? A:网络许可即SolidWorks License(SNL),可通过浮动许可使用而允许用户数量超过许可数量。SNL安装表现在:

1.SW提供的USB或并行端口硬件锁(dongle)附加到许可服务器上。 2.SNL Manager软件及SNL文件只安装在许可服务器上。 3.在许客户端上安装SolidWorks软件时,序列号识别此计算机为SNL客户端,提示SNL客户端安装对话框。键入许可服务器的地址以将客户端连接到服务器。 Q4:网络版需要特殊的服务器吗?对网络连接有什么要求? A:许可服务器支持多个许可客户端。它在网络上为客户机分发许可。许可服务器可以:只分发SolidWorks许可,分发SolidWorks许可并运行SolidWorks软件。许可服务器及所有许可客户端必须位于使用 TCP(传输控制协 议)的同一网络上。网络许可得管理包括:升级网络许可,删除许可文件,检索客户端许可,借用许可,临时许可等。 2、零件与草图 Q1:什么是设计意图,怎样来体现设计意图? A:设计意图是关于模型被改变后如何表现的规划,模型创建的方式决定它将怎样被修改。可以通过以下几种方式来体 现设计意图:自动(草图)几何关系、方程式、添加约束关系、尺寸。 Q2:怎样在直线与圆弧间进行切换? A:草图绘制时L键快捷方式选择直线,A键切换直线与切线弧。 Q3: 怎样显示直径或半径?

口令破解实验

口令破解实验 Company number:【0089WT-8898YT-W8CCB-BUUT-202108】

华北电力大学 实验报告 | | 实验名称网络攻击与防范实验 课程名称口令破解实验 | | 专业班级:学生姓名: 学号:成绩: 指导教师:实验日期: 口令破解实验 一、实验目的与要求 1、了解 Windows 系统密码的结构及构造原理。 2、了解 Windows 系统密码文件(SAM 文件)的相关知识。 3、掌握获取 Windows 用户密码的方法。 4、创建三组用户名和密码(复杂各不相同),采用不同模式破解,给出详细步骤及 结果。 二、实验环境 1、VPC1(虚拟PC):操作系统类型:windows xp;网络接口:eth0。 2、VPC1连接要求:与实验网络相连。 3、软件描述:,,John The 。

三、实验内容 1、在Windows系统下用SAIMnside和PwDump破解本地用户登录口令。 2、在Windows系统下用John The Ripper和PwDump破解本地用户登录口令。 四、实验正文 (一)在Windows系统下用SAIMnside和PwDump破解本地用户登录口令 1、使用pwdump 等工具获取 Windows 系统密码 Hash 值。 2、使用SAMInside工具对 Windows 系统密码进行破解。 Pwdump的使用语法为: pwdump [-h][-o][-u][-p][-n] machineName 其中: machineName——目标计算机名称。 -h——显示本程序的用法。 -o——指定导出后的口令散列值的存储文件。 -u——指定用于连接目标的用户名。 -p——指定用于连接目标的口令。 -s——指定连接上使用的共享,而不是搜索共享。 -n——跳过口令历史。 实验步骤: 1、使用默认用户名:administrator,密码:123456,登录到windows xp环境 2、打开开始——控制面板 点击“切换到经典视图” 3、双击“用户账户” 4、进入如图所示界面,点击Administrator。

SOLIDWORKS常用的默认快捷键及技巧

SOLIDWORKS常用的默认快捷键及技巧(转载) SolidWorks的其它快捷键要先自定义,选“工具”-“自定义”-“键盘”,可按照你用AUTOCAD的习惯来设定。 旋转模型: 水平或竖直方向键 水平或竖直90度Shift+方向键 顺时针或逆时针Alt+左或右方向键 平移模型Ctrl+方向键 放大SHIFT+z 缩小z 整屏显示全图f 打开文件Ctrl+O 保存Ctrl+S 额外快捷键: 撤消Ctrl+z 剪切Ctrl+x 复制Ctrl+c 粘贴Ctrl+v 删除Delete 下一窗口Ctrl+F6 关闭窗口Ctrl+F4 重建模型Ctrl+B 强使重建模型及重建其所有特征Ctrl+Q 重绘屏幕Ctrl+R 在打开的SolidWorks文件之间循环Ctrl+Tab 直线到圆弧/圆弧到直线(草图绘制模式)a 视图定向: 视图定向菜单空格键 前视Ctrl+1 后视Ctrl+2 左视Ctrl+3

右视Ctrl+4 上视Ctrl+5 下视Ctrl+6 等轴测Ctrl+7 选择过滤器: 过滤边线e 过滤顶点v 过滤面x 切换选择过滤器工具栏F5 切换选择过滤器(开/关)F6 以下内容转载自百度百科,学习中…… Solidworks快捷键及技巧 --来源:百度百科 1您可以使用CTRL+TAB键循环进入在SolidWorks中打开的文件。 2 使用方向键可以旋转模型。按CTRL键加上方向键可以移动模型。按ALT 键加上方向键可以将模型沿顺时针或逆时针方向旋转。 3您可以钉住视图定向的对话框,使它可以使用在所有的操作时间内。 4使用z来缩小模型或使用SHIFT+z来放大模型。 5您可以使用工作窗口底边和侧边的窗口分隔条,同时观看两个或多个同一个模型的不同视角。 6单击工具栏中的"显示/删除几何关系"的图标找出草图中过定义或悬空的几何关系。当对话框出现时,单击准则并从其下拉清单上选择过定义或悬空。 7您可以在FeatureManager设计树上拖动零件或装配体的图标,将其放置到工程图纸上自动生成标准三视图。 8您可以用绘制一条中心线并且选择镜向图标然后生成一条"镜向线"。 9您可以按住CTRL键并且拖动一个参考基准面来快速地复制出一个等距基准面,然后在此基准面上双击鼠标以精确地指定距离尺寸。 10您可以在FeatureManager设计树上以拖动放置方式来改变特征的顺序。 11当打开一个工程图或装配体时,您可以借助使用打开文件对话框中的参考文

Solid works使用心得

Solid works使用心得 Solidworks是一个三维CAD软件,它功能完善,可以进行三维实体曲面建模、渲染,完成动画。现在,随着Solidworks的功能日益完善、使用越来越贴近用户,价格也越来越低,使用Solidworks的企业也越来越多。但目前大部分培训材料讨论的多是建模渲染的技巧,而国内大绝大部分的技术、设计人员必须要把自己的设计完成平面图纸和工艺文件,这样才能使自己的设计让别人明白。(毕竟完全直接使用数控加工设备的企业不是很多。)我们的技术人员大部分时间不是在思考和设计方面,而是用在图纸的绘制上。 其实Solidworks在图纸管理和工程图方面也是十分强大的,正确的使用可以大大降低工程技术人员的劳动强度,事半功倍,解放生产力,真正成为“工程师”。而且它最大的好处就是,直观、图面错误少。一旦有新的系列产品的设计,或者有部分部件改动再出一套新图纸和三表几乎不用什么时间,而且不担心会错(如忘了改装配图上的尺寸、线条、图号等)。 下面就把一些心得分享给各位同行: 1. 首先,当然要掌握Solidworks的基本三维的建模、装配并学会如何出工程图。其实只要掌握基本的就可以了,因为企业中大多数的零部件并不复杂,顶多是有点繁。建模技巧高了,只不过建模的特征树简单点罢了。 2. 建立“模板”——templates。包括零件、装配体和各种幅面的工程图。这样在“新建”时,可以直接调用你保存的“模板”直接工作。

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