钢梁贯通型RCS组合节点构造措施及抗剪强度探讨

摘要

基于国内外有关RCS组合节点的研究,分析了RCS组合节点的破坏模式及相应的构造措施.根据RCS组合节点的受力特点,探讨了RCS组合节点核心区各抗剪机构的作用机理.通过对RCS组合节点试件抗剪承载力的计算分析,比较了现有国内外RCS组合节点抗剪强度计算公式,指出公式存在的问题,研究结果表明,以强度为基础的公式对于中节点的抗剪强度计算偏于保守,以变形为基础的公式计算结果离散性较小.综合目前RCS组合结构的研究现状,提出了RCS组合节点的研究建议,以期为RCS组合框架结构的进一步研究提供参考.%Based on the research of RCS composite joints at home and abroad, the failure modes of RCS composite joints and corresponding detail measures in the joint core are analyzed. According to mechanical characteristic of RCS composite joints, action mechanisms of shear resistant elements in the joint core are discussed. The methods to calculate shear strength of RCS composite joints are compared by calculation of RCS composite joints specimens, and existing problems are pointed out. It can be concluded that strength-based formulas provided a conservative calculation for interior joints, and the variability of results of deformationbased formulas is relatively small. Some recommendations for future research of RCS composite joints are proposed. This paper is hoped to be used as reference for further study of RCS composite frame structure.