By American Wood Council
Wind and Seismic layout consultant, published to be used with 2005 NDS wooden layout package deal.
Read Online or Download ASD/LRFD Wind & Seismic, Special Design Provisions For Wind And Seismic, With Commentary PDF
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Extra resources for ASD/LRFD Wind & Seismic, Special Design Provisions For Wind And Seismic, With Commentary
3 for shear walls to derive an appropriate design value. 4 Boundary Elements Boundary elements must be sized to transfer the design tension and compression forces. Good construction practice and efficient design and detailing for boundary elements utilizes framing members in the plane or tangent to the plane of the diaphragm or shear wall. 5 Wood Members and Systems Resisting Seismic Forces Contributed by Masonry and Concrete Walls The use of wood diaphragms with masonry or concrete walls is common practice.
25 AMERICAN WOOD COUNCIL 10d 1-1/2 25/32 1/2 8d common or 11 ga. galv. 120" x 1-3/4" long x 7/16" head) 8d common or 11 ga. galv. ) 1. 3 to determine ASD allowable unit shear capacity and LRFD factored unit resistance. 6. 3 for fiberboard shear walls. 2. Shears are permitted to be increased to values shown for 15/32 inch sheathing with same nailing provided (a) studs are spaced a maximum of 16 inches on center, or (b) panels are applied with long dimension across studs. 3. 5 – G)], where G = Specific Gravity of the framing lumber from the NDS.
The slip shall be increased by 20 percent when plywood is not Structural I. Nail slip for common nails have been extended to galvanized box or galvanized casing nails of equivalent penny weight for purposes of calculating Ga. 2 W = width of diaphragm in direction of applied force, ft Ga = apparent diaphragm shear stiffness, kips/in. x = distance from chord splice to nearest support, ft ∆c = diaphragm chord splice slip at the induced unit shear, in. 2-2, panel shear and nail slip are assumed to be inter-related and have been combined into a single term to account for shear deformations.
ASD/LRFD Wind & Seismic, Special Design Provisions For Wind And Seismic, With Commentary by American Wood Council