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College of Environment Design Construction Engineering Technology. Assessment of Constructability Practice Among General Contractors in The Eastern Province of Saudi Arabia By Fawzi Al-Yousif, 2002 Presented by: Abdulaziz Al-Zahrani. OUTLINE. Introduction Constructability - PowerPoint PPT PresentationTRANSCRIPT
College of Environment DesignCollege of Environment DesignConstruction Engineering TechnologyConstruction Engineering Technology
Assessment of Constructability Practice Among General Contractors in The Eastern Province of Saudi Arabia
By Fawzi Al-Yousif, 2002
Presented by:
Abdulaziz Al-Abdulaziz Al-ZahraniZahrani
• Introduction• Constructability
– Definition & concept – Why Constructability is needed
• Research Methodology – Research Objectives – Research Process
• Barriers• The Questionnaire • Conclusions & Recommendations
OUTLINEOUTLINE
• Construction in KSA and the 1970s revolution• Growth and human lives & financial loss• Constructability or buildability awareness
– Overall project plan– Designing– Cost estimates – Construction method – Scheduling
IntroductionIntroduction
“ Optimum integration of construction knowledge and experience in planning, engineering, procurement, and field operations to achieve overall project objectives” CII 1986
DefinitionDefinition
In the past, the so called ”master builder professional” used to manage all the knowledge required to plan, design, and construct a project. It’s not possible to do the same now days due to complexity, variety of material, regulation, standards, and codes.
“each area needs a professional to be specialized”each area needs a professional to be specialized”
The Need for ConstructabilityThe Need for Constructability
• Objectives– Determine current implementation practices in East KSA– Assess the existence of common barriers to
constructability implementation
• Research Process– Literature review Research method plan ــ – Implementation of plan ــ Data Mgt & Analysis
Research MethodologyResearch Methodology
• Literature review: Understanding the term “constructability” is required before conducting the research, and this requires a review of major literature associated with the field, in other word, to become more familiar with the subject by studying and closely observing the previous studies conducted in this field.
• Research Plan: After the review of literature, detailed plan of the research method was drafted, and it was decided to use a survey for collecting the required data.
“Constructability has almost the same fundamentals as VEConstructability has almost the same fundamentals as VE”
Design
Contracting
TimeTime
High
Low
Ability to Ability to influence influence costcost
Construction
O&M
Research continueResearch continue
• Implementation of plan: During this time the questionnaire was designed, sent to many personnel for participation, and feedback was received from participants
• Data Management and analysis: The final stage, as the heading signifies, involves managing of received data, studying and analyzing various related issue.
“ Constructability Job Plan has to lead the process of the research”Constructability Job Plan has to lead the process of the research”
Research continueResearch continue
• Most significant barriers:– Design without construction input is the traditional of
contracting
– Owners do not care about constructability in contracting strategy
– Owners do not choose constructability in their projects.
• Least mentioned barrier:– There are no proven benefits of constructability
BarriersBarriers
BarriersBarriers
• The quoted “modified”questionnaire has helped the researcher to avoid face to face interview with participants , not to mention it helped to avoid, Fixing meetings,Traveling long distance, Participants disturbance and rejection…. Atc.
• Questionnaires circulated to General Contractors 92 “only 42 replied”
• Questionnaire 3 main Divisions To obtain:A. Information and characteristics of the organization
B. Constructability definition and awareness for assessment
C. Constructability implementation Evaluation
QuestionnaireQuestionnaire
Constructability definition and awareness for assessment
Implementation of Constructability evaluation
ConclusionConclusion• The term “constructability” is very well known to the
general contractors in this part of Saudi Arabia.• Saudi Aramco has participated in this level of awareness
as they request the constructability as qualification process.
• General contractors are commonly participating during the pre-construction phase of the project by inserting their construction knowledge
Conclusion & Recommendation Continue
• Most of the general contractors think that constructability should be implemented in all projects regardless of the project size, type or complexity.
• Specifications problem & unrealistic schedules are most significant difficulties encountered by the general contractors under the traditional method of contracting.
Conclusion & Recommendation Continue
Recommendations:Recommendations:• General Contractor should practice constructability and
educated their clients• General contractor, owner, and designer should form an
association of constructability• As part of promoting constructability programs, owners
should insist on involving to general contractor in the project different phases
Conclusion & Recommendation Continue
• Constructability should be implemented in all projects regardless of their size or complexity
• Constructability should be included as another specialty during the pre-construction phase.
• Construction engineering and construction management colleges need to add constructability to their curriculum.
Conclusion & Recommendation Continue
Any Question
Thank you!