空间结构节点设计研究进展与实践

Research progress and practice of design of spatial structure joints

结合近年来国内外空间结构节点设计研究的进展、GB 50017—2003《钢结构设计规范》修订工作以及作者的工程实践,对空间结构中的螺栓球与焊接球节点、圆钢管与方钢管相贯节点、高强螺栓连接板节点、铸钢节点、球形钢支座、板式橡胶支座、向心关节轴承支座、连桥支座等的研究进展进行了较为全面回顾。对空间结构节点形式选择要点、节点设计的基本原则、各类节点对钢材性能的要求进行了探讨,对节点刚度、节点重量的估计方法、节点加工制作工艺与质量控制要点进行了分析。对各类节点设计中存在的问题以及相应的改进措施进行了阐述,并给出了有代表性的节点计算分析与工程应用实例。最后,对空间结构节点设计与研究未来的发展方向进行了展望。

Based on the development of research on the design of spatial structure joints in China and other countries in recent years,the revision work of the National Standard,＇Code for design of steel structures＇（GB 50017—2003）and the author＇s project practice,the paper comprehensively reviews the research progress of bolted spherical joint and welded spherical joint,intersecting round pipe and intersecting rectangular pipe joint,high strength bolted connection plate joint,cast steel joint,spherical steel bearing,laminated rubber bearing,radial spherical plain bearing,and connecting bridge bearing,etc.in spatial structures.This paper studies the selection points of joint form,the basic principles of the joint design,the requirement of all the joints aforementioned about steel performance and analyzes the effect of joint stiffness,the estimation method of joint weight,the processing technology and quality control points.The problems that need attention in the design of all the joints aforementioned and the corresponding improvement measures are elaborated in this paper.Some examples of representative joint calculation,analysis and engineering application are given.Finally,this paper points out the development trend of the spatial structure joints design and research in the future.