某不规则钢框架结构及其梁-柱节点分析

Analysis of an Irregular Steel Frame Structure and Its Beam-column Joints

介绍了一栋不规则2层钢框架结构体系,该项目基于建筑要求,钢框架梁、柱要求全部采用圆钢管型截面。由于实际工程中框架梁、柱截面全部采用圆管型截面的钢框架结构研究与应用较少,故为满足设计的需要,并确保结构体系的安全及可靠,在设计过程中对该结构体系及节点进行了一些分析与研究,以解决设计中的难点所在。分析结果表明,经过周到合理的分析,并配以恰当的构造措施,圆管型框架梁完全可运用到钢框架结构设计当中,圆管型截面的钢框架梁-柱节点具有良好的抗震性能。结构设计中若判断构件以受弯为主,箱形或工字型截面有较好的经济性。

This paper presents an irregular two-story steel frame structure system which adopts circular pipe section in its beams and columns because of the requirements of architects.Due to there are little research and application of steel frame structure with circular tube section,some analysis and research on the structural system and its beam-column joints were performed,so as to solve the difficulties in the design,which would meet the need of design and ensure the safety and reliability of the structural system.The results showed that steel frame beam-column joints with tubular section have good seismic performance,based on the reasonably analysis,appropriate construction measures.In structural design,if it is judged that the components are mainly subjected to bending,box or I-shaped sections have better economic efficiency.