組合梁與混凝土剪力墻新型連接節(jié)點受力性能
顧祥林1 陳濤1 張偉平1 李華1 王洪六1 周春2 周冬華2 孟益2
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(1 同濟(jì)大學(xué)建筑工程系 上海 200092；2 上海市建筑設(shè)計研究院有限公司 200041)［提要］ 以上海市浦東新區(qū)文獻(xiàn)中心主樓組合梁與混凝土剪力墻新型連接節(jié)點為對象，通過模型試驗和數(shù)值分析研究了大尺寸方鋼與混凝土剪力墻的共同工作性能。結(jié)果表明，該類節(jié)點可以可靠地工作；理想的設(shè)計方案是在方鋼上設(shè)置三個45°的三角形或梯形抗剪鍵；增大剪力墻的厚度和墻體中的配筋率可以有效地控制裂縫寬度；提高混凝土強(qiáng)度可增大節(jié)點的承載力。［關(guān)鍵詞］ 組合梁 方鋼 混凝土剪力墻 連接節(jié)點Mechanic Behavior of a New Type of Connection Between Composite Beam and Concrete Shear Wall/Authors:Gu Xianglin1,Chen Tao1,Zhang Weiping1,Li Hua1,Wang Hongliu1,Zhou Chun2,Zhou Donghua2,Meng Yi2(1 Depart.of Building Eng.,Tongji Univ.,Shanghai 200092;2 Shanghai Institute of Architectural Design & Research,Shanghai 200041,China)Abstract:Based on the model tests and numerical calculation, mechanic behavior of connection between composite beam and concrete shear wall in the main building of Achieves Exhibition Hall of Pudong New District in Shanghai is studied. The results of research indicate that this type of connection can work reliably, the ideal design scheme for the main component of the connection, the square steel bar is setting three triangle or trapezium shear keys with a angle of 45° on the surface of the bar. By increasing the depth of shear wall and the ratio of reinforcement, the crack width in the wall can be controlled effectively. High strength of concrete can enhance the bearing capacity of the connection.Keywords:composite beam; square steel bar; concrete shear wall; connection
