Present situation and problems of design and calculation of hybrid FRP-steel truss bridge

摘要：

　　Truss is one of the most reasonable structural forms in the frame structure,and the pultruded fiber reinforced polymer(FRP)material with excellent tensile and compressive properties can be full used in truss structures.This paper briefly introduces the present situation of FRP truss bridge construction,introduces a new hybrid FRP-steel truss lightweight emergency bridge,based on a novel technology called pre-tightened teeth connection(PTTC).The project shows that truss is the proper structure system for pultruded FRP profiles to build bridges,and PTTC can make full use of the properties of FRP,get higher connection efficiency.Research status at home and abroad show that the reliability in design of FRP truss bridge existing some problems: not clear,low safety,hard to calculation.

关键词： FRP pre-tightened teeth connection (PTTC) truss bridge Reliability safety

作者: ZHAO QiLin GAO JianGang PAN DaRong LI Fei ZHANG DongDong CHEN Li

作者单位: Nanjing University of Technology,Nanjing,211800,China PLA University of Science and Technology,Nanjing,21007,China Nanjing University of Science and Technology,Nanjing,210094 China Institute of logistics engineering,Chongqing,401331,China Nanjing Institute of Technology,Nanjing,211167,China

会议类型: 国际会议

会议名称: the Sixth Asia-Pacific Conference on FRP in Structures (APFIS2017)(第六届亚太纤维增强复合材料结构工程国际会议暨第十届全国建设工程FRP应用学术交流会)

会议地点: 新加坡

会议语种:英文

页码: 1-7

在线出版日期: 2017-07-19（万方平台首次上网日期，不代表论文的发表时间）