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Calculate Section Properties of a Square Channel Section: |
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Calculation: |
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Designer/Checker: |
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Input: |
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(Note: All input Metric units are converted to English units
for the equations below and then the output English units are converted back to
Metric) |
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Width of the flange (bf - in or mm) |
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Thickness of the flange (tf - in
or mm) |
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Depth of the beam (d - in or mm) |
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Thickness of the web (tw - in or mm) |
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Output: |
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h = d-2tf, x = (2(bf^2)tf+h(tw^2))/(2bfd-2h(bf-tw)), y = d/2 |
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Moment of Inertia x-axis, Ix = (bf(d^3) - (h^3)(bf - tw))/12 |
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Moment of Intertia y-axis, Iy = ((2tf(bf^3) + h(tw^3))/3) - A(x^2) |
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Area of section, A = Aw + Af = tw(h) + 2(bftf) |
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Section modulus of x-axis, Sx = Ix/(d/2) |
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Section modulus of y-axis, Sy = Iy/(bf-x) |
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Radius of gyration of x-axis, rx = (Ix/A)^0.5 |
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Radius of gyration of y-axis, ry = (Iy/A)^0.5 |
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Plastic section modulus of x-axis, Zx = (tw(d-2tf)^2/4) + bf(d^2 - (d-2tf)^2)/4 |
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Plastic section modulus of y-axis, Zy = htw(x-tw) + 2bftf(bf/2-x) |
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Approximate warping constant for I shapes, Cw = ((d-tf)^2)tf(bf^3)/24 |
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Approximate torsional constant, J = (2(bf)(tf^3)/3) + ((tw)^3)(d-2tf)/3 |
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Constant, c =(( Iy/Cw)^0.5)(d-tf)/2 |
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Moment of Inertia x-axis, Ix = |
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Moment of Intertia y-axis, Iy = |
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Area of section, A = |
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Section modulus of x-axis, Sx = |
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Section modulus of y-axis, Sy = |
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Radius of gyration of x-axis, rx = |
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Radius of gyration of y-axis, ry = |
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Plastic section modulus of x-axis, Zx = |
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Plastic section modulus of y-axis, Zy = |
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Approximate warping constant, Cw = |
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Approximate torsional constant, J = |
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Constant c = |
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