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Load Resistance Factor Design of Aluminum Structures

by Andrew J. Hinkle, Aluminum Co of America, United States,
Maurice L. Sharp, Aluminum Co of America, United States,



Document Type: Proceeding Paper

Part of: Structural Safety and Reliability

Abstract:

Load and Resistance Factor Design (LRFD) is a reliability-based approach to design with uncertainty. It involves the explicit consideration of limit states, multiple load and resistance factors and implicit probabilistic determination of reliability. Most aluminum designs, however, are based on the an allowable stress design code. This paper provides progress of work underway to define a strategy for calibrating a LRFD code for aluminum structures that will not penalize existing markets. End uses for aluminum structures and corresponding dead-to-live ratios are provided. Based on this and previous work, a factor is proposed to be applied to the structures resistance. The factor is dependent upon the importance of the structure being designed.

Subject Headings: Load and resistance factor design | Allowable stress design | Structural reliability | Aluminum (material) | Structural design | Structural analysis | Standards and codes

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