Laserfiche WebLink
<br /> · <br /> <br /> TABLE A-S <br /> CAPACITIES OF EXISTING MATERIALS (1) <br />~_~TERIAL/CONFIGURATION CAPACITY <br />l. Horizontal wood diaphragms <br /> a. Roofs <br /> 1) Straight sheathing 100 plf (2 ) <br /> 2) Straight sheathing with plaster <br /> applied to rafte=s 150 pl£ <br /> 3 ) Diagonal sheathing 400 pIt <br /> b. Floors <br /> 1) Straight tongue-and-groove <br /> sheathing 150 plf <br /> 2) Straight tongue-and-groove <br /> sheathing with plaster applied <br /> to joists 200 pIt <br /> 3 ) Straight sheathing and finished <br /> wood flooring 300 plf <br /> 4) Diagonal shea~hing and finished <br /> wood flooring 450 plf <br />2 . Shear walls: wood st~d walls with 100 plf <br /> lath and plaster each side <br />3 . Plain concrete footings f'c = 1500 psi ( 3 ) <br /> (unless other~ise <br /> shown by tests) <br />4. Douglas fir wood Per 1985 UBC <br /> for D.P. No. 1 <br />5. Reinforcing steel ft = 18,000 psi <br />6 . Structural steel ft = 20,000 psi <br />( 1) Ma~erials must be in good condition. <br />(2 ) "plf" = pounds per linear foot, seismic shear <br />( 3 ) "psi" = pounds per square inch <br />( 4 ) Stress increases for combined loading permitted." <br /> 20 <br /> 2004 <br />- - ....---......-...... <br />