Ecm442 lecture 1 latest

1. INTRODUCTION OF CIVIL ENGINEERING QUANTITIES
WEEK 1
LEARNING OUTCOMES (CO1-PO3)
Understand the definition of civil engineering quantities
Understand the construction stages and where is bill of quantity being produced
Understand the purpose of bill of quantities
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2. What is civil engineering quantities?
It can be defined from two words :
• civil engineering
Civil engineering is a professional engineering discipline which deals with the design,
construction and maintenance of the physical and natural built environment, cover a large of
different jobs such as bridge,highway, canals, dams and building.
In general, civil engineering is concerned with the overall interface of human created fixed projects with the
greater world. General civil engineers work closely with surveyors and specialized civil engineers to design
grading, drainage, pavement, water supply, sewer service, dams, electric and communications supply.
General civil engineering is also referred to as site engineering, a branch of civil engineering that primarily
focuses on converting a tract of land from one usage to another. Site engineers spend time visiting project
sites, meeting with stakeholders, and preparing construction plans. Civil engineers apply the principles of
geotechnical engineering, structural engineering, environmental engineering, transportation engineering
and construction engineering to residential, commercial, industrial and public works projects of all sizes
and levels of construction.
• quantities
The amount of labor, equipment and materials to carry out the project under various item of works.
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3. PICTORIALS OF PAVILLION MALL, KUALA LUMPUR
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4. PAVILLION MALL CONSTRUCTION STAGE
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5. ce
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You must understand the Sequence of Construction

6. HOW TO CALCULATE THE QUANTITIES?
m3 ?
kg ?
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7. HOW TO CALCULATE THE QUANTITIES?
m3 ?
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8. Who responsible for civil engineering quantities?
If the job done by quantity surveyor , why civil engineer
needs to study the civil engineering quantities?
Let’s discuss…..
Quantity Surveyor
– the application of expert knowledge in measure the
quantity and estimation of the cost and prices of labour,
materials and plant required.
Why?
achieve project’s objective within the scope of
quality, time and cost.
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9. Quantity surveyor
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10. Objectives of Construction Project
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11. • Discuss on the concept & the requirement of the
project (Client-Architect-Local authority)
• E.g. Environmental impact assessment , traffic
impact assessment (Consultant Engineer)
• Produce Architecture drawing
Conceptual &
feasibility study
• Architect design the concept of the project on the
client’s requirement
• Consultant Engineer will design and provide detail
drawing based on the client concept & feasibility
• Produce Engineering drawing and specification
Engineering &
design
• Taking off based on Eng. Drawing, Arc Drawing and
Specification
• Preparation of tender document-(Taking off and BQ)
• Call for tender & selecting the contractor
• Awarding the contract to winning contractor
Procurement
• Winning Contractor will construct the project as per
contract
• Architect and Consultant engineer will monitor
progress of work and the quality of the project
Construction
• Upon the completion of the project, contractor will
handing over the project to the client
• Client will continue to operate & maintain a building
Operate &
maintain
Construction Stages
-example-Building

12. Why quantities is carried out after design stage?
Because to carry out taking off,
detail drawings from design
stage is needed.
Let’s see example… @nurkamaliahmustaffa2013

13. From the above sketch, calculate :
Excavation in cubic meter
Concrete volume in cubic meter
Reinforcement in Kg.
Formwork
Insert all the above answer in “bill of quantities”
Notes: R10 – 0.616 kg/m
Y10 – 0.616 kg/m
Y12 – 0.888 kg/m
Assuming : cover = 25 mm for column
= 50 mm for footing
Leave blank
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14. How quantities can be carried out?
TAKING OFF
•It is the process of measuring from drawings and
recording all dimensions in recognized form on
a special ruled paper called “Dimension Paper”
BILL OF QUANTITIES
•A list of items giving the quantities and brief description of
work to be carried out with is respective quantity and unit
cost for carrying out each work.
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15. What is taking off sheet?
A process of measuring from drawings, recording all dimensions in recognized form called
taking of sheet or “dimension paper”
Taking off sheet
No Dimens
ion
Final Quantity Description of item Unit
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16. What is “bill of quantities” ?
A list of items giving the quantities and brief description of work to be carried out with its
respective quantity and unit cost for carrying out each work.
Bill of Quantities
Leave blank
Item Description Quantity Unit Rate Amount (RM)
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17. The purpose of Bill of Quantities (BQ):
1. To set down the various items of works in a logical sequence so that it readily priced by
contractor.
2. Enables all the contractors to tender on the same information.
3. Provide a convenient basis for valuation of stage payments during the contract, before the
accurate remeasurement figure are available.
4. Provide an approximate checklist for the contractor to order materials and plan for other
resources.
5. Provide data for cost analyses for use in cost planning of future projects.
6. Contractors are saved the costly exercise of each having to take off quantities for themselves.
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18. In normal practice, quantities is carried out after design stage and before
construction stage.
Why after design stage ?
Because to carry out taking off, detail drawings from design stage is needed.
Let’s see example :
3m
5m
2m
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19. Quantities Take off Sheet
2/10 5.00
3.00
2.00
600.00
3m
5m
2m
If 2 rows of column bases
with 10 columns in each
row?
No Dimension Final Quantity Description of item
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21. 1. Briefly explain why taking off quantities is carried out after design stage?
2. What is the purpose of Bill of Quantities?
3. How quantities can be carried out? and define taking off and bill of quantities
4. Explain how to carried out the estimation of the project. for example take concrete
column for example?
Material
Equipment
labor
Tutorial-Answer all question

22. Q.2 Briefly explain why taking off quantities is carried out after design stage?
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Because to carry out taking off, detail drawings from
design stage is needed. All information on the dimension
of the physical project, specification and standard for
material and equipment are need to consider before
taking off can be carried out.

23. What is the purpose of ‘Bill of Quantities’?
1. To set down the various items of works in a logical sequence so that it
readily priced by contractor.
2. Enables all the contractors to tender on the same information.
3. Provide a convenient basis for valuation of stage payments during the
contract, before the accurate remeasurement figure are available.
4. Provide an approximate checklist for the contractor to order materials and
plan for other resources.
5. Provide data for cost analyses for use in cost planning of future projects.
6. Contractors are saved the costly exercise of each having to take off
quantities for themselves

24. RECAP AND TUTORIAL
How quantities can be carried out?
Retrieved all detail information from the design drawings,
specification and other information related to the project. Then,
do the taking off. After done all taking off, transfer all the
quantities to bill of quantities (actract).
1. TAKING OFF
•It is the process of measuring from drawings and
recording all dimensions in recognized form on
a special ruled paper called “Dimension Paper”
2. BILL OF QUANTITIES
•A list of items giving the quantities and brief
description of work to be carried out with is
respective quantity and unit cost for carrying out
each work.

25. Explain how to carried out the estimation of the project. for example take
concrete column for example?
For example to construct concrete column we need:
Material – Concrete, Formwork, Reinforcement bar
Equipment-Crane, concrete vibrator
Labor – Carpenter, concreter
Quantities are define as the estimate the amount of labor, equipment
and material used to carry out the project under various item of works.
So, to carry out the estimation of the construction (1 item only) concrete
column, all material, equipment and labor are need to count