1. Pre-estimating
Requirements
● Mat Naim Abdullah
● matnaim@utm.my
● C04-308
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2. Pre-construction - Information
CONSTRUCTION STAGES
Inception
Designing & Tender Document Preparation
Tendering & Procurement
Construction
Operation & Maintenance
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3. THE BUILDING COMMUNICATION
1. Drawings
2. Specification
3. Bills of Quantities (BQ)
4. Tender Documents
5. Contracts Documents
6. Work Programmes
7. Operation & Maintenance Manual
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4. 2. The Drawings
Imagine!!!!!!
How to
design and
draw?
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5. 2. The Drawings (Cont’d)
Types of Drawings
1. Conceptual Drawings
2. Tender Drawings
3. Contract Drawings
4. Construction Drawings
5. Shop Drawings
6. As-built Drawings
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6. 2. The Drawings (Cont’d)
Conceptual Drawings – What can you see?
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7. 2. The Drawings (Cont’d)
Conceptual Drawings – What can you see?
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8. 2. The Drawings (Cont’d)
AERIAL PERSPECTIVE
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9. 2. The Drawings (Cont’d)
CONSTRUCTION DRAWINGS CIQ COMPLEX - FRONT ELEVATION
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10. 2. The Drawings (Cont’d)
CONSTRUCTION DRAWINGS CIQ COMPLEX - LEFT ELEVATION
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11. 2. The Drawings (Cont’d)
MOTORCYLES
BUS & COACHES
LV
HGV
CONSTRUCTION DRAWINGS CIQ COMPLEX - PARTIAL SECTION
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12. 2. The Drawings (Cont’d)
To Malaysia
To Singapore
CONSTRUCTION DRAWINGS - CIQ Layout Plan (Level 1)
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13. 2. The Drawings (Cont’d)
Offices & Passengers’ Hall (Level 2)
To To
Malaysia Singapore
CONSTRUCTION DRAWINGS
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14. 2. The Drawings (Cont’d)
Shop Drawings – What can you see?
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15. 2. The Drawings (Cont’d)
As Built Drawings – What can you see?
Any difference from the construction drawings?
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16. 2. The Drawings (Cont’d)
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17. 2. The Drawings (Cont’d)
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18. Bills of Quantities (BQ)
The forms where the contractor fills in his price
based on:
1. The description of works
2. Quantities Example
of BQ
3. Unit – m, m2, m3, kg, Lump sum, Item, No.
Preparation of BQ is by Quantity Surveyor based
on the Standard Method of Measurement (SMM)
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19. Specification
Specification – Describe:
1. Materials
2. Standard of materials
3. Construction processes &
4. workmanship.
Making Cake
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20. Tender Documents
Tender Documents
1. Instruction to tenderers
2. Form of tender
3. Conditions of contracts
4. Bills of Quantities
5. Tender Particulars
6. Tender Drawings
7. Specification
8. Proposed work programme
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21. Instruction to Tenderers & Form of Tender
Instruction to Tenderers contains:
1. The content of the tender documents
2. Selection of the tenderers
Form of Tender is a
3. Visiting the site
declaration by the
4. Procedure for addendum tenderer to abide to
5. Procedure for tender preparation & the instruction of
submission tenderers
6. Content of Bills of Quantities
7. Opening & closing of tender
8. Any significant matters related to the
project
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22. Conditions of Contract
The Details of Agreement between the Employer and the Contractor.
Usually consists of:
1. Contractor’s liabilities
2. Provision of preliminary works
3. Variations
4. Payments
5. Commencement & completion
6. Defects liability
7. Delay & extension of time
8. Termination
9. Mediation & Arbitration
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23. Contract Documents
Contract Documents
1. Letter of Award
2. Instruction to tenderers
3. Form of tender
4. Conditions of contracts
5. Agreed Bills of Quantities
6. Tender Particulars
7. Contract Drawings
8. Specification
9. Agreed work programme
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24. Work Programme
Indicate the time to complete each of
the construction activities or
package of the project in the form of
bar chart or Critical Path Method,
hence the total completion period for
the whole project.
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25. Master Implementation Programme
2002 2003 2004 2005 2006 2007
ACTIVITY
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
Oct ‘02 CIQ Facilities
CIQ Complex Aug ‘02 CIQ Building
VPA Jul ‘06 Operational
(Dec ’06)
Aug ‘03
JB Sentral Terminal Mar ‘03 Section 1 Section 2 Jun ‘07
Interchange No. 1 & Other Sep ‘02
Apr ‘03
May
Infrastructure Works ‘06
Feb ‘06
Short Term Access Nov ‘04 Dec‘06
JBS Short Term Access Jul ‘05 Oct ‘05
Jul ‘07
Jan ‘03
Road Bridge (Suspended) Oct ‘02 Dec ‘05
Mar ‘04
Rail Bridge (Suspended) Jun ‘03 Aug ‘06
Jan ‘06
Causeway Removal/ (Suspended)
May ‘05 Apr ‘07
Navigation Channel
LEGEND:
Physical Works Stage Completion Milestones
Commencement Works
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