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原文传递 Simplified Live Load Distribution Factor Equations.

题名：	Simplified Live Load Distribution Factor Equations.
作者：	mertz, d.
关键词：	bridge design, structural analysis, load factor
摘要：	The goal of this project is to determine a simpler and possibly more accurate method to estimate live load effect on bridges. The literature on this and related topics is robust and comprehensive. It addresses many approximate methods using many different philosophies and technical approaches. If possible, the research team and panel wanted to use existing methods from the literature review or from existing bridge design specifications, including international sources, to establish a better approach. The research and design specification literature were reviewed in detail for possible simplied methods, relevant experimental results, and rigorous analysis methods. Approximately 150 references were reviewed, key information was categorized into areas important to the research, and results were placed in a searchable database and comprehensive report. The papers were categorized into the following areas: current codes and related articles, international codes, simplified and/or more accurate approaches from other researchers, effect of parameters on live load distribution, modeling, nonlinear finite element analysis, field testing, bridge type, and miscellaneous items. / NOTE: Final rept. for 27 Sep 01-26 Dec 04. / Supplementary Notes: Prepared in cooperation with Texas Transportation Inst., College Station. Sponsored by John A. Volpe National Transportation Systems Center, Cambridge, MA. and Federal Highway Administration, McLean, VA. / Availability Note: Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0808；137p
报告类型：	科技报告