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Allowable Stress Design Loads For Wood IBC 2003 <br />Design shall resist the applicable load combinations of Chapter 16. <br />Shear resistance of diaphragms and shearwalls shall be based on <br />Principle of Mechanics. <br />Design per Alternative Basic Load Combinations 1605.3.2 [2741 <br />For worse case effect with wind load, L & S shall be zero. <br />Equations 16-14, 16-15, & 16-16 become, <br />D+cow <br />Where w equals 1.3, W equals Fx of the respective diaphragm, and <br />D shall'be multiplied by two-thirds. <br />For worse case effect with seismic load, L & S shall be zero. <br />Equation 16-18 controls, <br />0.9 D + E/1.4 , substitute Equation 16-51 for E <br />�pQE-0.2SpSD) <br />0.9 D + , simplify & arrange variables <br />1.4 <br />�0.9-0.14 SDS).D+ P QE <br />1.4 <br />Where QE equals Fx of the respective diaphragm. <br />Principle of Mechanics <br />Sum the forces in the horizontal direction, diaphragms and shearwalls shall resist, <br />Wind Design Loads, 1.3 Fx <br />Front to Rear <br />Side to Side <br />Diaphragm <br />Force Ibs <br />Force Ibs <br />x = 2 <br />3857 <br />8632 <br />x = 1 <br />4592 <br />6630 <br />Seismic Design Loads, (p/1.4) Fx <br />p = 1.25 <br />Diaphragm <br />Force Ibs <br />x = 2 <br />4739 <br />x = 1 <br />5769 <br />2301.2.1 [445] <br />2305.1.1 [4581 <br />1605.1 [273] <br />1605.3.2 [274] . <br />1609.1.3 [283] <br />1605.1 [2731 <br />1617.2.2.2 [3311 <br />Version 7.0 <br />Pg 3.1 <br />