2/28/2011

3.2.8 Essential Questions

1. How do weight and applications of loads affect the design of a structure?
You need larger footings and stronger beams and girders in areas with heavier loads.



2. What factors determine whether soil is suitable to support a structure?
density, compacting ability



3. What considerations influence the depth and height of the foundation?
frost level, soil type



4. What are the typical modes of failure of a concrete footing?
soil heave, breaking due to insufficient thickness

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