配箍率对型钢混凝土柱-钢梁节点受力性能影响的试验研究*
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（1 北京市建筑设计研究院, 北京 100045； 2北京建筑工程学院,北京市工程结构与新材料工程研究中心， 北京 100044）[摘要]通过5个1/2缩尺试件在高轴压比下的低周反复加载试验，研究了型钢混凝土柱-钢梁框架中部节点的破坏形态和受力性能，讨论了节点核心区配箍率低于规范要求配箍率的可行性，并对现行规范公式提出了修改建议。[关键词]型钢混凝土;节点;受力性能;轴压比;配箍率中图分类号：TU317 文献标识码：A 文章编号:1002-848X(2013)S1-0483-05Research on mechanical property of steel reinforced concrete column-steel beam jointsSi Jianchao1, Feng Xiyuan2, Xu Bin1, Wu Hui2(1 Beijing Institute of Architectural Design, Beijing 100045, China; 2 Beijing University of Civil Engineering and Architecture, Beijing 100044, China)Abstract: With 5 one-second scale joint specimens tested under monotonic and cyclic loadings with high axial compression ratio, failure characteristics and mechanical properties of Steel Reinforced Concrete Column-Steel Beam Joint (SRC) are studied. The SRC joint has better ductility and load capacity; the cracking load and ultimate bearing capacity are improved, the energy dissipation raises, and the brittle fracture is avoided.Keywords: steel concrete; joint; mechanical property; axial compression ratio; stirrup ratio
