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（1 上海交通大學空間結構中心 200030；2 香港理工大學 香港)
［提要］提出一種新型的鋼混凝土組合拱結構形式，它由底部拼裝薄鋼拱和上部現(xiàn)澆鋼筋混凝土層組成。對7個帶有螺栓節(jié)點的鉸支組合拱進行拱冠集中加載的承載性能試驗。結果表明：螺栓節(jié)點的性能決定構件整體受力特性；通過合理的設計，此類組合拱能夠具有較好的承載能力。
［關鍵詞］ 組合結構 拱 螺栓節(jié)點
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