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Check Unreinforced Masonry Wall for Axial Compression,Flexural Stress
and Shear: |
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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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ASD Chapter 2, MSJC Code, check compressive and tensile stresses in a load bearing unreinforced
masonry wall: |
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Allowable tensile stress of masonry, due to flexure (bending) only (Fb - psi or MPa) |
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Specified compressive strength of the masonry (f'm - psi or MPa) |
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Moment on unit length of wall due to lateral load (M - in-lb/ft or N-m/m ) |
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Axial compressive load on the wall (P - lb/ft or N/m) |
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Eccentricity of the axial compressive load (e - in or mm) |
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Moment of Inertia of the masonry unit (I - in^4/ft or mm^4/m) |
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Thickness of the masonry (t - in or mm) |
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Height of the wall (h - ft or m) |
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Radius of gyration of the masonry (r - in or mm) |
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Net area of masonry (An - in^2/ft or mm^2/m) |
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Maximum design shear (V - lb/ft or N/m) |
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Output: |
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Bending stress on the masonry, fb = |
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Allowable bending stress, Fb = |
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Check is fb < or = Fb? |
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Slenderness ratio, h/r = |
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Compressive stress on masonry, fa = |
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Allowable compressive stress, Fa = |
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Check is fa < or = Fa? |
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Buckling load, Pe = |
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Check is P < or = Pe/4? |
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fa/Fa + fb/Fb = |
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Is fa/Fa + fb/Fb < or = 1? |
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Shear stress on masonry, fv = |
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Allowable shear stress, Fv = |
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Is fa < or = Fv? |
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