GEOL 106 Lecture 16: GEOL 106 (W6, L16)
12 Jan 2016
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Document Summary
Determine human interactions with the potential hazard in the area. Remember if there are no people or no property there is no risk. What is the distribution of the population in the area: in particular what is the proximity of people to high hazard zones. Good (flexible/more expensive) = wood, steel, reinforced concrete. Bad (rigid) = heavy masonry, stucco, adobe, unreinforced concrete: choose resistant building design. Danger of resonance if the period of vibration of the building and of the ground are the same = resonance. Buildings have a natural period of vibration of ~ n/10 seconds (where n = number of stories) Ground periods: soft soils = several seconds, solid rock < 1 second. Building period: tall blog = several seconds, short blog ~1 second: the effect of building shape, structural design (to resist seismic waves) Bolt it, bracket it, brace it, block it, panel it. Isolation: set up warning systems and emergency response plans, trey predicting earthquakes.
