实腹式型钢混凝土异形柱框架刚度与承载力试验研究.pdfVIP

第30 卷第10 期 Vol.30 No.10 工 程 力 学 2013 年 10 月 Oct. 2013 ENGINEERING MECHANICS 86 文章编号：1000-4750(2013)10-0086-07 实腹式型钢混凝土异形柱框架刚度与 承载力试验研究 1 1 2 1 刘祖强 ，薛建阳 ，葛鸿鹏 ，赵鸿铁 (1. 西安建筑科技大学土木工程学院，陕西，西安 710055 ；2. 中国建筑西北设计研究院有限公司，陕西，西安 710018) 摘 要：通过2 榀实腹式配钢的型钢混凝土(SRC)异形柱框架的低周反复加载试验，获得其破坏特征和荷载-位移 滞回曲线，分析其刚度和承载力。结果表明，实腹式配钢的 SRC 异形柱框架具有良好的抗震性能，破坏机制为 梁铰机制；刚度退化由快到慢，呈现出较好的规律性；对 SRC 异形柱框架的弹性层刚度进行计算，结果与试验 结果符合较好；承载力衰减随加载位移的增加而增大，但当位移小于5Δ 时，同级位移下承载力衰减较小；实腹 y 式SRC 异形柱框架的层间受剪承载力可采用柱底塑性铰法进行计算。 关键词：实腹式型钢混凝土；异形柱框架；拟静力试验；刚度；承载力 中图分类号：TU398.2 文献标志码：A doi: 10.6052/j.issn.1000-4750.2012.06.0430 EXPERIMENTAL STUDY ON STIFFNESS AND LOADING CAPACITY OF SOLID STEEL REINFORCED CONCRETE FRAME WITH SPECIAL-SHAPED COLUMNS 1 1 2 1 LIU Zu-qiang , XUE Jian-yang , GE Hong-peng , ZHAO Hong-tie (1. College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an, Shaanxi 710055, China; 2. Northwestern Architectural Design Institutes Company Ltd, Xi’an, Shaanxi 710018, China) Abstract: According to the experimental study on two frame models composed of reinforced concrete beams and solid steel reinforced concrete (SRC) special-shaped columns under low cyclic reversed loading, the failure pattern and load-displacement hysteretic loops were obtained, and the stiffness and loading capacity were analyzed. The results show that, solid SRC frames with special-s