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原文传递 Development and Demonstration of Advanced Design Composite Structural Components; Final rept

题名：	Development and Demonstration of Advanced Design Composite Structural Components; Final rept
作者：	Howdyshell, P. A.; Trovillion, J. C.; GangaRao, H. V.; Lopez-Anido, R.
关键词：	Composite materials; Civil engineering; Fiber reinforcement; Mechanical properties; Commerce; Performance(Engineering); Polymers; Composite structures; Construction; Corrosion resistance; Life cycle costs; Reinforced concrete
摘要：	Composite materials have been demonstrated to be effective in high- performance applications where traditional materials fail, especially in aggressively corrosive environments. Many corrosion-resistant applications are industrial load-bearing elements, but the construction industry has mainly used composites in nonstructural applications. Most fiber-reinforced polymer (FRP) composites have not been optimized for civil engineering applications, and conventional civil engineering design procedures may not effectively exploit the unique mechanical properties of FRP composites or adequately define potential failure mechanisms. The objective of this work was to develop, test, and demonstrate optimized, advanced-design composite structural components for civil engineering applications. First, new glass FRP fiber architectures were developed, tested, and optimized. Next, using the optimized fiber architecture, a pultruded interlocking hexagonal structural system called the H-Deck was designed, tested, and compared with performance standards published by the American Association of State Highway and Transportation Officials (AASHTO). Finally, two short-span FRP composite H-deck demonstration bridges were successfully constructed. Detailed results from the testing and optimization phases of the study are documented, and economic analysis suggests that life- cycle costs for properly selected FRP composite H-Deck applications will be lower than for comparable reinforced concrete applications. Information on the commercial availability of the composite H-Deck system is also provided.
总页数：	78p
报告类型：	科技报告