牟在根¹, 杨雨青¹, 苏雪楠¹, 王喆²
AuthorsHTML:牟在根¹, 杨雨青¹, 苏雪楠¹, 王喆²
AuthorsListE:Mu Zaigen¹, Yang Yuqing¹, Su Xuenan¹, Wang Zhe²
AuthorsHTMLE:Mu Zaigen¹, Yang Yuqing¹, Su Xuenan¹, Wang Zhe²
Unit:1. 北京科技大学土木与资源工程学院，北京 100083；2. 中国建筑标准设计研究院，北京100048
Unit_EngLish:1．School of Civil and Enviormental Engineering, University of Science and Technology Beijing, Beijing 100083, China
2．China Institute of Building Standard Design & Research, Beijing 100048, China
Abstract_Chinese:梁柱连接处的节点是钢框架结构的一个重要组成环节, 半刚性端板连接节点由于其良好的力学性能, 被广泛应用于钢结构建筑领域．采用焊接连接的H型钢梁、柱半刚性端板连接计算方法相对较成熟, 在H型钢梁、柱半刚性端板连接节点的弯矩-转角简化全曲线的形式与计算方法的基础上进行改进, 提出了方钢管柱-单轴对称梁半刚性端板连接的弯矩-转角曲线计算方法．通过改变节点域加强区的厚度、端板厚度和螺栓直径, 利用有限元分析得到不同节点的弯矩-转角曲线, 与简化曲线计算结果进行比较, 证明了简化曲线计算方法能很好的计算节点弯矩-转角曲线上各重要参数, 具有一定的准确性和可行性, 且曲线线性阶段与有限元数值计算结果吻合良好, 满足结构设计要求.
Abstract_English:The joints of beam-column connections are an important part of the steel frame structure and semi-rigid end-plate connections are widely used in the steel structure construction due to excellent mechanical properties. The calculation method for H-type steel beam and column semi-rigid end-plate connection is relatively mature. According to the existing H-type steel beam and column semi-rigid end-plate connection simplified full moment-rotation curve form and calculation method，an improved calculation method of the moment-rotation curve for the semi-rigid end-plate connection of steel tube columns with uniaxial symmetry beam is proposed. By changing the thickness of node domain strengthening area and end-plate as well as the diameter of bolt，the moment-rotation curves of different joints are obtained by finite element analysis. Compared with the results of simplified curves，it is proven that the simplified calculation method curve can compute joint moment-rotation curve considering important parameters. This calculation method presents accuracy and feasibility. The linear phase of the curve is in good agreement with the finite element numerical calculation results，which meets the requirements of the structural design.
Keyword_Chinese:半刚性; 单轴对称; 弯矩-转角曲线; 初始刚度
Keywords_English:semi-rigid; uniaxial symmetry; moment-rotation curve; initial stiffness

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