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# HW2_sol - Homework#2 1 Required diameter for round footing...

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Unformatted text preview: Homework #2 1. Required diameter for round footing: Q 100 := ton q 3 := tsf From Q = q*A & A = π D^2/4, D Q q 4 π ⎛ ⎝ ⎞ ⎠ ⋅ 6.515 = := ft D = 7 ft (round up th the nearest whole foot) Immediate settlement under the center: C s1c 1.00 := E 200000psi := q 41.67psi := (= 3 tsf) μ 0.4 := B 7ft := (= D) ρ rc C s1c q ⋅ B ⋅ 1 μ 2 − E ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⋅ 0.015 in ⋅ = := Immediate settlement under the edge: C s1e 0.64 := ρ re C s1e q ⋅ B ⋅ 1 μ 2 − E ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⋅ 9.409 10 3 − × in ⋅ = := 2. Required one side length for square footing: Q 100 := ton q = 3 tsf B Q q 5.774 = := B . 6ft := (round up th the nearest whole foot) Immediate settlement under the center: C s2c 1.12 := E 200000psi := q = 41.67 psi (= 3 tsf) μ 0.4 := ρ sc C s2c q ⋅ B . ⋅ 1 μ 2 − E ⎛ ⎜ ⎝ ⎞ ⎟ ⎠ ⋅ 0.014 in ⋅ = := Immediate settlement under the edge: C s2e 0.56 := ρ se C s2e q ⋅ B ....
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