Introduction To Electrical & Mechanical...
Transcript of Introduction To Electrical & Mechanical...
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Construction Measurement III / SBQ3314
Introduction To Electrical & Mechanical Works
Dr. Sarajul Fikri Mohamed
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Traditional Building
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Purpose of M&E Measurement
1. To determine element and components that involved to the M & E works.
2. To measure according to the latest standard method of measurement SMM2.
3. To protect the interest of the client and the contractor.
4. The information derived from a priced BQ to aid the construction planning networks.
5. A tool for cost control in mechanical and electrical services.
6. To minimize future disagreement.
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Building Services Cost (McCaffrey, 2011 )
TYPE OF BUILDING PERCENTAGE OF THE TOTAL COST
Warehouse 10 to 15%
Apartment 15 to 20%
School 20 to 25%
Shopping complex 20 to 30%
Hotel 30 to 40%
Offices 35 to 45%
Hospital 40 to 55%
Data Centre 60 to 70%
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Smart Building
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ELEMENTAL ANALYSIS
Substructure
Superstructure
Internal Finishing
Fitting and Furnishing
Services
External Works
Preliminaries
Building Elements
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Electrical Installations
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Air-Conditioning Installations
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Fire Fighting Installations
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MECHANICAL & ELECTRICAL WORKS MEASUREMENT RULES
Standard Method of Measurement of Building Works
SECOND EDITION
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Submission to Course Tutor
• Read and check drawing
• Drawing numbering and scale used.
• Taking off list
• Heading and Description
• Take off
• Annotation
• Query list
• Final checking
PROJECT DRAWINGS
Studio Works
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Studio Works Grading
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ITEM DESCRIPTION WEIGHTAGE
1 Taking off List and Unit 20
2 Description and Heading 30
3 Quantity Measurement 30
4 Annotation and Side Cast 10
5 Query List 10
TOTAL 100
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M&E Works and Bill of Quantities
Clients realised that this approach was not very satisfactory in
determining where the actual costs for this work are being
expended
It was largely presented in this way for three main reasons
• M&E Engineers often failed to provide the appropriate
details in time for quantification purposes.
• It was not the custom to measure M&E works.
• Contractors often preferred to offer lump sum quotations on
the basis of drawing and specification only.
Traditionally, much of M&E Works was included in BQs as prime cost sums.
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The Needs for QS
• To provide an accurate cost control function for only part of building project is UNSATISFACTORY.
• The M&E Works is more extensive and expensive and its costs, value and cost control must be as accurate as the methods applied on the remainder of the construction project.
• QS have had to become more familiar with building services in their science, technology, terminology, in order to quantify engineering drawing correctly.
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• Management
• Documentation
• Analysis
• Appraisal
• Quantification
BILL OF QUANTITIES
SKILLS
Output
• Construction technology
• Measurement rules
• Construction economics
• Financial management
• Business administration
• Construction law
KNOWLEDGE
Skills and Knowledge For QS
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Summary
[ Lord Esher, 1971]
‘On average the mechanical services account
for close on a third of the cost of modern
building’
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References
1. The Institution of Surveyors, Malaysia (2000). Standard Standard Method of Measurement of Building Works Second Edition (SMM2) Malaysia : Winston Enterprise.
2. The Institution of Surveyors, Malaysia (2000). Standard Standard Method of Measurement of Building Works Second Edition (SMM2) – Practice Manual. Malaysia : Winston Enterprise
3. Luter, M.E and Mc Gowan, M.C (1991). Building Engineering Services - A Practice Manual for Quantity Surveyors (Vol. 2 - Electrical Services Technology). Nottingham : Nottingham Polytechnic HED.
4. Framptom, D.I. (1991). Building Engineering Services - A Practice Manual for Quantity Surveyors (Vol. 1 - Mechanical Services Technology). London; Longman.
5. Mc Clelland, B and Reifel, M.D. (1986). Planning and Design of Fixed Offshore Platforms. Texas : Van Nosrand Reinhold.
6. Production Department American Research Institute (1980). Primer of Oil and Gas Construction. Dallas : American Petroleum Institute.
7. Peter, M.S., Timmerhaus, K.D. (1991). Plant Design and Economics for Chemical Engineers. Singapore : Mc Graw-Hill.
8. Rosli Abdul Rashid (1987) Pengenalan Kepada Ukur Kuantiti 1. Johor Bahru Penerbit UTM.
9. Ching, F.D.K. (1987). Interior Design Illustrated. New York : Van Nostrand Reinhold.
10. Rosindell, F.S., Stafford, K.D. (1991). Building Engineering Services - A Practice Manual for Quantity Surveyors (Vol. 4 - Measurement and Estimating). Nottingham : Nottingham Polytechnic HEC.
11. Weinberg, S.S. (1992). Handbook of Landscape Architectural Construction. Washington D.C. : Landscape Architecture Foundation.
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THANK YOU