刚性钢框架异型节点承载力的影响因素分析  

Influence factors of load bearing capacity of irregular joints in rigid steel frames

作　　者：彭寿留[1] 温干祥[1] 彭修宁[1,2] 

机构地区：[1]广西大学土木建筑工程学院,广西南宁530004 [2]广西防灾减灾与工程安全重点实验室,广西南宁530004

出　　处：《广西大学学报（自然科学版）》2014年第1期20-27,共8页Journal of Guangxi University（Natural Science Edition）

基　　金：国家自然科学基金资助项目(51168002)

摘　　要：为研究影响含异型节点大型火电主厂房钢框架承载力的因素,在进行了以轴压比及柱两侧梁截面高度比为可变参数、缩尺比为1∶4的6个异型节点试件低周反复加载试验的基础上,通过数值模拟方法进一步将轴压比及柱两侧梁截面高度等参数加以拓展,得到了"异型节点的承载力由与工字梁等高的核心1区承载力决定"等一些比试验研究更为一般性的规律,为指导该类型节点设计提供参考。In order to study the mechanical behaviors of irregular joints in rigid steel frames that are used in large-scale power plants, 6 specimens in 1/4 scale of the prototype model were designed according to different axial compression ratio and section height ratio of beams and were tested under low cyclic loading. Parameter analysis including axial compression ratio and section height ratio of beams were extended by ANSYS, to unveil the general rules beyond those by experimental tests, such as that the bearing capacity of irregular joints depends on the bearing capacity of the core 1 area that is at the same hight as the I-beam. The result provides a guide for the design of the joints.

关 键 词：刚性钢框架 异型节点 性能 承载力 

分 类 号：TU391[建筑科学—结构工程]