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Studies on Probability-Based Design for Residential Construction


Report Acceptance Date: December 2001 (34 pages)
Posted Date: December 01, 2001

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This report describes a series of studies conducted in support of developing and improving probability-based design procedures for residential construction applications. The focus of this study was on wood-frame structures built using nominal 2-by framing lumber, structural sheathing, and nail fasteners-the most common materials used today. While by no means a complete analysis of all commonly used materials and methods of construction, an effort has been made to consider a representative range of conditions so that many of the results can be generalized. It is emphasized that this report represents an initial effort and is exploratory rather than conclusive in many instances. Clearly, much more work is needed.

The results in this report can be used (along with other information) as the basis for calibration of new design provisions or modifications to existing design provisions (e.g., partial factors). However, more work is needed and additional lumber grades, load combinations, and limit states (e.g., tension, compression), for both members and systems (assemblies), must be considered before a full set of target reliabilities can be recommended.

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