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原文传递 Design and Analysis of Thermoplastic Composite Bridge Superstructures.

题名：	Design and Analysis of Thermoplastic Composite Bridge Superstructures.
作者：	uddin, n. abro, a. m. vaidya, u.
关键词：	infrastructure, design concept, finite element analysis, structural system
摘要：	This study is primarily focused on addressing the application of fiber reinforced composites (thermoplastics) in the design of bridge decks. Bridges are vital components of the nation's infrastructure, many of which are deteriorated. The replacement of such bridges requires careful planning as well as exploration of other materials that will resist the factors leading to the deterioration of old bridges, which in many cases need to be replaced before reaching 50 percent of their expected service life. In this study we present an integral modular fiber thermoplastic composite bridge structural system. The design concept is presented by utilizing high performance thermoplastic material (i.e. Glass/Polypropylene) along with an efficient low cost manufacturing process and fabrication technique. The design is based on detailed finite element analyses and limited experiments to investigate the stiffness and strength of the structural system. To demonstrate the design concept, two bridge deck systems with different spans were modeled and compared with two current thermoset composite bridge systems. The proposed design concepts for both decks present a unique approach for structurally efficient and low cost bridge deck systems. / Supplementary Notes: Prepared in cooperation with Alabama Univ. at Birmingham. Dept. of Materials Science and Engineering. Sponsored by University Transportation Center for Alabama, Tuscaloosa. / 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：	u0712；28p
报告类型：	科技报告