6 Infrastructure Development 3

6 Infrastructure Development 3 - ENGG1006 Engineering for...

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ENGG1006 Engineering for Sustainable Development Theme : Engineering Systems Topic : Infrastructure Development 2 Teaching Week : 7 (2010-11 S1) Dr. Scott Smith Department of Civil Engineering The University of Hong Kong E: stsmith@hku.hk, T: 2241 5699, Office: 6-10 (Haking Wong Building) Consultation Times: Thursday 13:00-14:00, Friday 13:00-14:00, and by appointment
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ENGG1006 Week 7, 2010-11 S1 2 - Describe the scope and content of transportation engineering. - Describe the sustainability issues in transportation. - Describe the transportation planning and policy in Hong Kong. - Describe the major considerations of highway route planning. 6 2, 3 Transportation Systems Prof. S.C. Wong 8 - Explain why structures stand up and fall down. - List lessons learnt from failed engineering systems. - Accountability. - How can past failures ensure future success of sustainable engineering systems? - 2 Infrastructure Development 2 Dr. S.T. Smith 7 - Describe the scope and content of the discipline of engineering materials. - Describe the sustainability issues associated with engineering materials. - Describe the scope and content of the discipline of structural engineering. - Implement the disciplines of materials and structural engineering towards promoting sustainable development. - 2 Infrastructure Development 1 Dr. S.T. Smith 7 - Introduction to sustainable development of the built environment. - Introduction to engineering systems. - Engineering wonders of the natural, ancient, medieval, industrial and modern worlds. 5 2, 4 Engineering Systems: Past and Present Dr. S.T. Smith 6 Weeks 5-8: Engineering Systems Main Learning Outcomes of Each Lecture Assessment Task Number Course Learning Outcomes Topic (Teacher) Teaching Week
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ENGG1006 Week 7, 2010-11 S1 3 Modern materials and technologies have greatly reduced the number of failures - structures still however fail Engineers Capture the Headlines for the Wrong Reasons !
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ENGG1006 Week 7, 2010-11 S1 4 Why do Structures Fail? s Lack of redundancy……redundancy is the ability of loads to be carried by a structure in more than one way. Redundancy is structural insurance (e.g. World Trade Centre collapse) s Inadequate design, use of sub-standard materials, poor construction (e.g. Kansas City Hyatt Regency Skywalk Collapse) s Modifications of the structure during construction which were not intended for in the design (e.g. Kansas City Hyatt Regency Skywalk Collapse – see Week 11 Lecture for Case Study) s Unforeseen loads or loads of unforeseen magnitude (e.g. fire, earthquake) stresses the structure or its components to their strength/fracture limit (e.g. World Trade Centre collapse) s Unforeseen structural behaviour (e.g. aerodynamic behaviour of Tacoma Narrows Bridge)
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ENGG1006 Week 7, 2010-11 S1 5 Progressive Failure s A lack of redundancy can cause progressive collapse s Primary structural element failure leads to the collapse of adjoining elements (due to overload) (e.g. World Trade Centre collapse, Kansas City Hyatt Regency Skywalk collapse) s Collapse can initiate from a minor or major deficiency
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6 Infrastructure Development 3 - ENGG1006 Engineering for...

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