A comprehensive study on CFRP rapid portable bridge: Design, experimental investigation and finite element analysis

被引:11
作者
Xiong, Jianwu [1 ,2 ]
Ai, Pengcheng [1 ,3 ]
Xu, Jin [1 ]
Yang, Jia-Qi [4 ]
Feng, Peng [3 ]
机构
[1] Fifth Sci Res Inst Wuxi, Wuxi 214035, Peoples R China
[2] Wuhan Univ Technol, Wuhan 430063, Peoples R China
[3] Tsinghua Univ, Dept Civil Engn, Key Lab Civil Engn Safety & Durabil, China Educ Minist, Beijing 100084, Peoples R China
[4] China Univ Min & Technol Beijing, Sch Mech & Civil Engn, Beijing 100083, Peoples R China
基金
国家重点研发计划;
关键词
CFRP; Rapid portable bridge; Experimental investigation; Finite element analysis; Tensile joint; COMPOSITE ARMY BRIDGE; DEPLOYABLE BRIDGE; FRP; BEHAVIOR;
D O I
10.1016/j.compstruct.2022.115439
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
For military and emergency applications, there is the high demand for bridges that are light-weight, highstrength, and easy to transport and install. Carbon fiber-reinforced polymer (CFRP) composites are promising for rapid portable bridges due to their excellent performance. A CFRP rapid portable bridge (CRPB) with a box beam profile was designed in this study, and a 1:2.5 scaled model of the CRPB was manufactured and tested under track loads to evaluate its structural performance. The failure mode of the CRPB was crushing of the bridge upper deck, and the ultimate load was 6.5 times the design strength. Tensile joints performed well in the test without obvious damage and were an effective connection strategy. The mechanical behavior of the shear keys and tensile joints were studied by finite element methods. The numerical results from the finite element analysis of CRPBs show good agreement with the experimental results.
引用
收藏
页数:13
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