CET 355 - Module 5 - Resilience(1).pdf

CET 355 - Module 5 - Resilience(1).pdf - CET 355...

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2/7/2017 1 CET 355 Sustainable Building Practices PART 1 WHAT IS SUSTAINABLE BUILDING AND WHY SHOULD ENGINEERS CARE ABOUT IT? Resilience - Disasters, Climate, & The Built Environment February 6, 2017 Video Assignment In order to streamline class sessions, videos were moved to a homework assignment Graded assignment (2.5% of grade) is a “quiz” This content is eligible for EXAM 1 as well. 2
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2/7/2017 2 Resilience Disasters, Climate, & The Built Environment Course Topic 3 Resilience Definition “Urban Resilience is the capacity of individuals, communities, institutions, businesses, and systems within a city to survive, adapt, and grow no matter what kinds of chronic stresses and acute shocks they experience.” - Application to Infrastructure & Environment The man-made and natural systems that provide critical services, protect, and connect urban assets enabling the flow of goods, services, and knowledge Implication Building to handle stresses & shocks Chronic Stress - overtaxed or inefficient public transportation system, water shortages. Acute Shocks - disasters 4
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2/7/2017 3 Resilience as a technical problem 100 Resilient Cities’ (100RC) City Resilience Framework “Dimensions” Health & Wellbeing Economy & Society Infrastructure & Environment Leadership & Strategy survive, adapt, and grow no matter what build it back BETTER Construction and engineering solutions are the key to attacking these 5 Resilience in the context of Sustainable Building Reducing Chronic Stresses Reduced resource use lowers stresses Lower transportation requirements Resisting Acute Shocks Net Zero means “grid failure” has no effect Deconstructible as repairable? Lower embodied energy means lower rebuild costs Fewer Moving Parts (Passive design) Working with natural processes - Low Impact Design (LID) TRADEOFFS Windows - high natural light vs. wind damage resistance Protection - Overtopped levees also prevent floodwaters from receding Others? 6
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2/7/2017 4 Disasters Single Mode Indonesia Tsunami Hurricane KATRINA Compound Modes Fukushima Daiichi - March 11, 2011 8.9 earthquake (LOG scale) 14 meter Tsunami Multiple hydrogen explosions Fire Structure and plant equipment damaged Radioactive material release Primarily Iodine (gas) and Cesium (solid)
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