- 摘 要
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（1 山東建筑大學土木工程學院， 濟南 250013； 2 山東建筑大學工程鑒定加固研究院， 濟南 250013； 3 同圓設(shè)計集團有限公司， 濟南 250101； 4 中鐵建工集團諾德投資有限公司， 深圳 518000）
［摘要］為了研究新型裝配式異形柱節(jié)點的抗震性能，更好地推廣新節(jié)點應用于實際工程，設(shè)計制作并進行了2組異形柱節(jié)點的擬靜力試驗。通過觀察4個試件的裂縫開展破壞過程，分析每個試件位移、剛度、強度和耗能等抗震指標。結(jié)果表明：裝配邊柱節(jié)點與現(xiàn)澆節(jié)點的破壞過程和類型基本一致，而兩個中柱節(jié)點的破壞過程及類型有明顯區(qū)別； 縱筋采用直螺紋套筒和灌漿套筒連接均能夠有效傳遞雙向應力，實現(xiàn)鋼筋與混凝土的有效傳力； 疊合板滑移影響裝配節(jié)點承載力； 裝配節(jié)點的剛度比現(xiàn)澆節(jié)點稍低，但因較早屈服，破損位移相近，延性變形優(yōu)于現(xiàn)澆節(jié)點，能夠滿足基于性能設(shè)計的框架結(jié)構(gòu)層間位移角限值2%（生命安全（LS）性能）要求。
［關(guān)鍵詞］裝配式異形柱節(jié)點； 擬靜力試驗； 延性變形； 抗震性能；
中圖分類號：TU317文獻標識碼：A文章編號：1002-848X(2020)06-0001-07
Experimental study on seismic behavior of assembled special-shaped column joints
Wang Xin1,2, Zhang Zhen1,3, He Haiqiang4
(1 School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; 2 Engineering Research Institute of Appraisal and Strengthening, Shandong Jianzhu University, Jinan 250013, China;3 Tongyuan Design Group Co., Ltd.， [JZ]Jinan 250101, China; 4 Zhongtie Norde Real Estate Co., Ltd., Shenzhen 518000, China)
Abstract:In order to study the seismic behavior of the new type of assembled special-shaped column joints and promote the application of the new joints in practical engineering, two groups of special-shaped column joints were designed and quasi-static tests were conducted. By observing the fracture failure process of four specimens, the seismic indexes of displacement, stiffness, strength and energy consumption of each specimen were analyzed. The results show that the failure process and type of the assembled side column joints and the cast-in-place joints are basically the same, while the failure process and type of the two middle column joints are significantly different. The longitudinal bar is connected with straight thread sleeve and grouting sleeve, which can effectively transfer the bidirectional stress and realize the effective force transfer between reinforcement and concrete. Composite slab slip affects the bearing capacity of assembly joints. The stiffness of the assembly joint is slightly lower than that of the cast-in-place joint, but due to early yield, similar damage displacement, ductile deformation is better than that of the cast-in-place joint, which can meet the seismic behavior requirement of 2% of the ultimate story drift angle to ensure life safety.
Keywords:assembled special-shaped column joint; quasi-static test; ductile deformation; seismic behavior
作者簡介：王欣，碩士，副教授，碩士生導師，Email:wangxin@sdju.edu.cn。
