联肢钢-混凝土组合剪力墙端板螺栓式钢连梁抗震性能研究

发布时间：2018-01-04 23:28

本文关键词：联肢钢-混凝土组合剪力墙端板螺栓式钢连梁抗震性能研究　出处：《土木工程学报》2014年12期 　论文类型：期刊论文

【摘要】：我国高层建筑已经进入广泛应用钢-混凝土组合剪力墙的阶段。由钢-混凝土组合墙肢耦合而成的联肢组合墙中,由于钢构件预埋于墙肢边缘区域,给传统连梁的应用带来了困难。为了开发出适用于联肢钢-混组合剪力墙的连梁形式,将钢结构中常用的端板螺栓连接构造引入,利用其构造简单、易于施工且抗震性能良好的优点,连接钢连梁与组合剪力墙。以连梁长细比为主要参数,设计并制作5个采用端板螺栓连接的双肢组合剪力墙试件和1个传统直插式的小比例双肢钢筋混凝土剪力墙试件,进行低周往复拟静力加载试验,以考察端板螺栓连接钢连梁的受力特征、滞回性能、刚度与强度退化特征以及破坏模式。利用有限元分析方法对试验过程进行数值模拟并与试验结果对比。结果表明,端板螺栓连接钢连梁能够达到较高的延性水平和较大的耗能能力,刚度、强度退化不明显。试验加载过程的剪力-侧向位移骨架曲线与有限元分析结果吻合较好。
[Abstract]:The high-rise building in China has entered the wide application of steel - concrete composite shear walls. The steel-concrete composite shear wall coupling and the coupled composite wall, because the steel embedded in the wall edge area, bring difficulty to the application of traditional beam. In order to develop suitable coupled steel concrete composite shear wall beam, steel structure in the end plate bolt used for connecting structure is introduced, with its simple structure, easy construction and good anti-seismic performance, connecting steel coupling beams and shear walls. Even with the slenderness ratio as the main parameters, designed and made 5 by bolt end plate joints double limb shear wall test piece and a small proportion of 1 Traditional in-line double limb shear wall reinforced concrete specimens, low cyclic pseudo static loading test, in order to study the stress characteristics of bolted end plate steel beams, hysteretic behavior, stiffness and strength of back The characteristics and failure modes. By using the finite element analysis method to simulate the test process and the comparison with the test results. The results show that the end plate bolted steel beams can reach a high level of ductility and larger energy dissipation capacity, stiffness, strength degradation is not obvious. The test with shear loading process and lateral displacement curve the finite element analysis results are in good agreement.

【作者单位】：重庆大学土木工程学院;重庆大学山地城镇建设与新技术教育部重点实验室;湖南大学建筑安全与节能教育部重点实验室;南加州大学;
【基金】：国家自然科学基金(51108484) 中央高校基本科研业务费项目(CDJZR12205503) 重庆市科委自然科学基金(CSTC2011BB6092)
【分类号】：TU973.31
【正文快照】： 3.湖南大学建筑安全与节能教育部重点实验室,湖南长沙410082;4.南加州大学,美国洛杉矶CA90089)New Technology for Construction of Cities in Area Mountain of the Ministry of Education,Chongqing University,Chongqing 400045,China;3.Key Laboratory of Building Safety

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