铁道科学与工程学报2011，Vol.8Issue(4)：14-18,5.
小比例尺组合桁架内含式节点试验研究
Experimental research on the buried-plate joints of steel-concrete composite truss at small scale
摘要
Abstract
The behavior of steel - concrete composite truss joints in the Xi' an - Pingliang Railway Bridge is experimentally researched. Two joints of ear plate at small scale were tested under horizontal linear loading. In the paper, the test method and results and the behavior within the whole loading period were reported, and the joint behaviour, the load carrying capacity and the failure mode were discussed. The experimental results show that the failure mechanisms include the cracking of concrete, the yielding of internal steel, the buckling of local steel. With finite element analysis of the specimen, the results coincide well with the experimental results and show the joint' s weaknesses are the braces. It is proved that increasing the thickness of abdominal could enhance both strength and stiffness of the joint and improve the capacity. The results provide a theoretical reference and basis for the design of joint in this project and similar ones.关键词
组合节点/试验研究/有限元分析Key words
composite structure/ experimental research/ finite element analysis分类
建筑与水利引用本文复制引用
周凌宇,张花..小比例尺组合桁架内含式节点试验研究[J].铁道科学与工程学报,2011,8(4):14-18,5.基金项目
国家自然科学基金资助项目(50708112) （50708112）
铁道部科技研究开发计划项目(2008G007-C) （2008G007-C）
