（1 上海交通大学空间结构中心 200030；2 香港理工大学 香港)
［提要］提出一种新型的钢混凝土组合拱结构形式，它由底部拼装薄钢拱和上部现浇钢筋混凝土层组成。对7个带有螺栓节点的铰支组合拱进行拱冠集中加载的承载性能试验。结果表明：螺栓节点的性能决定构件整体受力特性；通过合理的设计，此类组合拱能够具有较好的承载能力。
［关键词］ 组合结构 拱 螺栓节点
Test Study on  Bearing Capacity of a New Steel concrete Composite Arch/Wang Zengchun1,Dong Shilin1,Teng Jinguang2（1 Space Structure Research Center,Shanghai Jiaotong University, Shanghai 200023, China; 2 HongKong Polytechnic University, Hongkong, China）  Abstract:A new steelconcrete composite  arch is introduced. It consists of bottom bolted thin steel arch and top fresh concrete. To examine the characters of bolted connections in the arches, seven composite arches are tested by one centered load to failure. The parameters of anchorage, concrete cover, and negative reinforced bars are studied. It is  concluded that bolted connection will deeply shadow the behaviors of bolted steelconcrete composite structures during serves.
Keywords:composite structure; arch; shell; bolted connection