英国梅贝三角形装配式钢桁桥的构造与受力性能分析  

Structure types and mechanical performance analysis of Mabey delta panel modular steel truss bridge

作　　者：张凯[1] 姚文奇[2,3] 冯绍攀 邱洁霖[1] 

机构地区：[1]长安大学公路学院,陕西西安710064 [2]中交第一公路勘察设计研究院有限公司 [3]西安中交土木科技有限公司

出　　处：《内蒙古公路与运输》2015年第3期10-14,共5页Highways & Transportation in Inner Mongolia

基　　金：交通运输部企业技术创新资助项目(2013315490060)

摘　　要：装配式钢桁桥作为一种军民两用的桥型正受到人们越来越多的关注。"321"与200型装配式钢桥是我国应用最多的两种装配式钢桁桥,其在抗洪抢险及基础设施建设中扮演着重要角色。然而,"321"与200型装配式钢桥的跨径有限,难以胜任大跨径的要求,有必要开发一种大跨装配式钢桁桥以满足日益增长的需求。英国梅贝三角形装配式钢桁桥作为一款在国际市场上领先的桥梁产品,文章重点对其基本构造细节进行介绍,并通过杆系模型分析其静力与屈曲性能。分析表明,梅贝三角形钢桁桥是一款构造细节处理较好,力学性能优越,适用性较强的装配式桥梁产品,具体体现在:模块化标准化的拼装单元、高强螺栓的使用及合理的构造布置,其设计理念与特点对我国正在进行的大跨装配式钢桁桥产品设计具有一定参考价值。Modular steel truss bridge, as a kind of dual - use bridge structure, was getting more attention. 321 and 200 type steel truss bridge were widely used in China, they both played an importance role in flood -fighting and emergency rescues and infrastructure construction. However, because of the limitation of span of 321 and 200, they were not capable to bridge a large span when needed. Hence it was necessary to develop a modular steel bridge with larger span. In this paper, Mabey delta panel modular steel truss bridge, as high level product around world market, was focused to introduce and study its structure type details and static and dynamic performance. Conclusion shows that, Mabey Delta Panel Bridge is a well - designed bridge product especially in details and is also of good mechanical performance and applicability. The design ideas and features such as modular and standard component element, the used of high strengths bolts and rational structural profile, have a certain reference value to the development of Chinese modular steel truss bridge product

关 键 词：三角形钢桁桥 装配式 321型 拼装节段 力学性能 

分 类 号：U448.36[建筑科学—桥梁与隧道工程]