Αποτελέσματα Αναζήτησης
The range of values in the tables provides allowable spans for all species and grades of nominal 2-inch framing lumber customarily used in construction. These span tables assume installation of at least three joists or rafters that are spaced not more than 24" on center.
First you need to get a few things: Code book; AWC’s Span Tables for Joists and Rafters (this assigns allowable spans to various combinations of E and Fb); and a copy of Design Values for Joists and Rafters (this has Fb and E values for various species, sizes and grades of dimension lumber).
Resources provide a simplified system to determine allowable joist and rafter spans in one- and two-family dwellings, and the companion supplements for tabulating allowable bending and modulus of elasticity design values for visually graded and mechanically graded dimension lumber.
The Board for Contractors licenses businesses engaged in the construction, removal, repair, or improvement of facilities on property owned by others.
Online and mobile-based calculators for determining joist and rafter spans, design connections, heights and areas, sound transmission, and energy efficiency compliance.
This application provides a web-based approach to calculating capacities for wood connections per the American Wood Council standards.
AWC Web-Based Calculators and Other Resources. American Wood Council's website is a treasure trove of resources for architects, engineers, code officials, builders, etc. to aid in the design and plan review of wood projects; most of which are available for free.
