Laserfiche WebLink
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 f274I <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 />0.0 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=4 <br />0 <br />0 <br />x=3 <br />0 <br />0 <br />x = 2 <br />3644 <br />7397 <br />x =1 <br />4133 <br />6383 <br />Seismic Design Loads, (p/1.4) FX <br />p = 1.25 <br />Diaphragm <br />Force (Ibs) <br />x=4 <br />0 <br />x=3 <br />0 <br />x = 2 <br />3666 <br />x =1 <br />3516 <br />2301.2.1 [445] <br />2305.1.1 f4581 <br />1605.1 [273] <br />1605.3.2 [274] <br />1609.1.3 [283] <br />1605.1 f2731 <br />1617.2.2.2 [331] <br />Version 7.0 <br />Pg 3.1 <br />