Lean construction精益建设.doc

Lean construction From Wikipedia, the free encyclopedia Jump to: navigation, search Lean Construction is a combination of original research and development in design and construction with an adaption of lean manufacturing principles and practices to the end-to-end design and construction process. Unlike manufacturing, construction is a project based-production process. Lean construction is concerned with the holistic pursuit of concurrent and continuous improvements in all dimensions of the built and natural environment: design, construction, activation, maintenance, salvaging, and recycling (Abdelhamid 2007). This approach tries to manage and improve construction processes with minimum cost and maximum value by considering customer needs. (Koskela et al. 2002) The term Lean Construction was coined by the International Group for Lean Construction in its first meeting in 1993. (Gleeson et al. 2007) Contents [hide] 1 Historical Development 1.1 A New Paradigm 2 What is lean construction? 3 Integrated Project Delivery 4 Practical applications 5 Last Planner ? System 6 Differences between Lean Construction approach and Project Management Institute (PMI) approach 7 Lean Construction FAQs 8 Commercial arrangements that support IPD and Lean Project Delivery 9 LC Networks, Teaching and Research 10 References [edit] Historical Development The seminal work of Lauri Koskela in 1992 challenged the Construction Management community to consider the inadequacies of the time-cost-quality tradeoff paradigm. Another paradigm-breaking anomaly was that observed by Ballard (1994), Ballard and Howell (1994a and 1994b), Howell and Ballard (1994a and 1994b) and Howell (1998). Analysis of project plan failures indicated that “normally only about 50% of the tasks on weekly work plans are completed by the end of the plan week” and that constructors could mitigate most of the problems through “active management of variability, starting with the structuring of the project (temporary