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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Additional info for ASD/LRFD Wind & Seismic, Special Design Provisions For Wind And Seismic, With Commentary
C. c. field (applied vertically). c. c. field (applied vertically). c. c. c. field (applied vertically). c. c. field (blocked). For other stud depths, the wall stud bending stress increase factor was assumed to be proportional to the relative stiffness (EI) of the stud material. 1 are due to rounding. 2 assume a two-span continuous condition. Out-of-plane sheathing capacities are often tabulated in other documents on the basis of a three-span continuous condition. Although the three-span continuous condition results in higher capacity, the more conservative two-span continuous condition was selected because this condition frequently exists at building end zones where the largest wind forces occur.
The design of elements throughout a structure will generally utilize either the ASD or LRFD format; however, specific requirements to use a single design format for all elements within a structure are not included. The suitability of mixing formats within a structure is the responsibility of the designer in compliance with requirements of the authority having jurisdiction. ASCE 7 – Minimum Design Loads for Buildings and Other Structures (5) limits mixing of design formats to cases where there are changes in materials.
5) Maximum uniform load based on bending governs. 1. 1 Nominal Uniform Load Capacities (psf) for Wall Sheathing Resisting Out-of-Plane Wind Loads for the following conditions: Maximum uniform load based on shear strength for a two-span condition: Sheathing type Span rating or grade Min. thickness Strength axis Actual stud spacing Maximum uniform load based on shear governs. 1: = wood structural panels = 40/20 = 19/32 in. = perpendicular to supports = 12 in. 1. 3 refers the user to the NDS (6) when designing connections to resist wind or seismic forces.
ASD/LRFD Wind & Seismic, Special Design Provisions For Wind And Seismic, With Commentary by American Wood Council