Double-composite rectangular truss bridge and its joint analysis

查看全文 作　　者：Yongjian [1]Liu;Zhihua [1,2]Xiong;Yalin [1]Luo;Gao [1]Cheng;Ge [1]Liu;Jian [3,4]Yang

机构地区：[1]School of Highway, Chang'an University;[2]CCCC First Highway Consultants Co., Ltd.;[3]Department of Civil Engineering, The City College of New York;[4]Mc Laren Engineering Group

出　　处：《Journal of Traffic and Transportation Engineering(English Edition)》索引2015年第2卷第4期,共9页

基　　金：supported by the National Natural Science Foundation of China(No.51378068);Foundation of Transportation Construction Research for West China(No.2013318812410) 摘　　要：This paper describes a novel composite tubular truss bridge with concrete slab and concrete-filled rectangular chords. With concrete slab plus truss system and joints reinforced with concrete and Perfobond Leiste rib, double composite truss bridge proved to be a fairly suitable solution in negative moment area. Perfobond Leiste shear connector(PBL) is widely implemented in the composite structure for its outstanding fatigue resistance. In this pilot bridge, Perfobond Leister ribs(PBR) were installed in the truss girder's joints,which played double roles as shear connector and stiffener. An erection method and overall bridge structural analysis were then presented. Typical joints in the pilot bridge were selected to analyze the effect of PBR. Investigation of the effect of PBR in concretefilled tubular joints was elaborated. Comparison has revealed that concrete-filled tubular joints with PBR have much higher constraint capability than joints without PBR. For rectangular tubular truss, the punching shear force of the concrete filled joint with PBR is approximately 43% larger than that of the joint without PBR. Fatigue performance of the joint installed with PBR was improved, which was found through analysis of the stress concentration factor of joint. The PBR installed in the joints mitigated the stress concentration factor in the chord face. Therefore, the advantages of this new type of bridge are demonstrated, including the convenience of construction using rectangular truss, innovative concept of structural design and better global and local performances. 关键词：复合材料管桁架桥矩形复合材料结构桥梁结构分析应力集中系数混凝土板钢管接头

相关文献

参考文献（16）
引证文献（11）
耦合文献（0）

参考文献(16)

引证文献(11)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Double-composite rectangular truss bridge and its joint analysis

参考文献(16)

引证文献(11)

用户提示