广州新电视塔钢结构柱-梁-撑节点的抗震性能试验研究  

An experimental study on the seismic behavior of the steel column-beam-brace joints of the Guangzhou TV Tower

作　　者：陈以一[1,2] 孟宪德[1] 童乐为[1] 贾良玖[1] 周定[3] 钟云华[3] 

机构地区：[1]同济大学,上海200092 [2]土木工程防灾国家重点实验室,上海200092 [3]广州市设计院,广东广州510620

出　　处：《土木工程学报》2009年第8期9-16,共8页China Civil Engineering Journal

摘　　要：介绍广州新电视塔钢结构柱-梁-撑节点缩尺模型的滞回试验研究。此节点的特点是环梁通过牛腿与立柱连接,立柱、斜撑、环梁三者轴线不交汇非共面。试验研究将此节点解构为三部分:环梁-牛腿的连接、牛腿-立柱的连接、斜撑-立柱的连接,分别对每部分进行滞回性能和极限承载力的考察,然后对节点的整体性能作出综合评价。研究表明该节点构造能够保证相连构件达到全截面屈服,具有良好耗能能力,满足抗震设计要求。The seismic behavior of the steel column-beam-brace joints of the Guangzhou TV Tower was experimentally studied. A typical feature of the joints of the Guangzhou TV tower is that the columns are rigidly connected with the ring beams trough brackets, while the axes of the columns, the ring beams and the braces were not in the same plane. In the experiment, the joint was divided into three parts, connection of ring beam with bracket, connection of bracket with column, and connection of column with brace. The hysteretic behavior and the ultimate capacity of each part were experimentally studied, and the global performance of the joint as an entity was evaluated. The results indicate that the joints are capable of ensuing the overall yielding of the cross section of each connection member before failure, and possess energy dissipation capability that can meet the seismic resistant design requirement.

关 键 词：钢管 钢管混凝土 柱-梁-撑节点 滞回性能 试验研究 

分 类 号：TU391[建筑科学—结构工程]