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Download Value Engineering in Sustainable Construction Projects Using Building Information Modeling (BIM)
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Dr. Azzeddine Oudjehane SAIT Polytechnic – School of Construction BSc Construction Project Management Challenges of the construction industry Sustainability in construction projects What is BIM? Why BIM? Value engineering in construction projects BIM and value analysis BIM in action: Case studies In 2013, the global construction industry was worth $8.7 Trillion. 35% of investments in emerging markets (South east Asia, MENA, India,...) in 2013, will reach 52% in 2025 In 2013, construction investments in Canada is expected to total~$400 B In 2004, construction investments in Canada was ~$180 B +100% investment increase in 9 years Investment trends for the construction sector in Alberta – Source: Alberta Construction Sector Council Economic uncertainty Steady growth and strong demand for projects Labour market and workforce issues Green or sustainable construction Lean construction Innovation and new technologies such as BIM Efficiency and productivity: “Construction 2.0” Labour productivity measures the extent to which labour is efficiently used. An increase in labour productivity is associated with increases to real incomes and the standard of living for an economy. It is determined by its capital intensity (or changes in the amount of capital per hour worked), investment in human capital, and multifactor productivity which includes technological change, organizational innovation, and economies of scale. 125 GDP Hours worked Productivity 100 75 50 25 0 2007 2008 2009 2010 2011 2012 2013 Source: StatsCan Owner/Developer Architect/engineer Contractor Multiple stakeholders Subs/Suppliers The stakeholders in a construction project Architect Owner Organization Owner Engineer Design/Engineer Organization Scheduler Construction Project Manager Facility manager Financial Government Estimator Builder Organization Contractor Subcontractor Organization Community Outside Organization Sustainable construction is concerned with the social environmental economic impacts of a project Economic impact Time Social impact Cost Environmental l impact Scope Building impact in the OECD countries (source ISOVER – http://www.isover.com – retrieved November 7, 2013) Well being of people Health and Safety Ethics in construction (exploited workers,...) PROJECT COST SAVINGS For example: Use of local materials of construction reduces transportation costs Materials Energy intensity intensity Water consumption Toxic emissions Pollution emissions Results of a survey over 62 countries 60% No green projects 50% Over 60% projects 40% 30% 20% 10% 0% 2009 2012 2015 Source: World Green Building Trends Smart market report by McGraw-Hill Construction Cost effectiveness and long term affordability Durability and strength Energy efficiency Climate change mitigation Conservation of water and other natural resources, Comfort (acoustical, visual, thermal…) Human productivity, safety and health Indoor air quality Reduction of outdoor air, water and ground pollution Aesthetics Communication Collaboration or lack of it… or lack of it.. For every $ 1 billion in project investment 13.5% $ 135 million is at risk 5675 % million is at risk $ due to ineffective communication Ref: PMI 2013 report BENEFITS OF BIM Fast and effective processes – shared information less ROIs Improved Reduced productivity - conflicts and changes during construction Lifecycle data information Concept planning Feasibility VE Design and Engineering Procurement and Construction Occupation Operation Decommission Source: McGrawHill Construction 2012 Source: McGrawHill Construction 2012 WHY VE? to provide the best design alternatives for projects to reduce costs of projects to improve quality to improve organizational performance to improve schedule to reduce risk to identify problems to provide optimized solutions VE Implementation cost Cost savings Concept Design Construction documents Construction Project Life cycle O&M BIM enables real time application of VE BIM enables changes to project parameters as identified by VA during pre-construction phase BIM enables measurement of impact from changes BIM enables identification of clashes/ problems pre- construction phase BIM enables adoption / implementation measurement of of sustainable values Vancouver convention centre Vancouver convention centre Dr. Azzeddine Oudjehane [email protected]
