750kV钢管混凝土变电构架结构关键节点研究  

Research on Key Joints of 750 kV Concrete Filled Steel Tube Substation Truss Structures

作　　者：张广平 奚增红 巩良 王淑萍 杨俊芬[2] 杨超[2] 

机构地区：[1]中国能源建设集团甘肃省电力设计院有限公司,甘肃兰州730050 [2]西安建筑科技大学土木工程学院,陕西西安710055

出　　处：《中国电力》2016年第8期1-6,共6页Electric Power

基　　金：住房和城乡建设部2014年科学技术项目(2014-K2-011);陕西省自然科学基础研究基金面上项目(2014JM7244);陕西省教育厅专项科研计划项目(2013JK0977);国家电网公司2014年依托工程基建新技术研究项目~~

摘　　要：钢管混凝土结构作为一种较为合理的结构形式,一般都有很好地经济性。为了在750 k V变电构架结构中大力推广钢管混凝土结构,同时为桥湾750 k V变电站提供设计依据,进行了750 k V钢管混凝土变电构架结构中3种关键节点的试验研究。试验结果表明:各类节点均具有较高的强度储备和延性,且破坏形态满足"强节点弱杆件"的设计原则,经依托工程实践总结后可在750 k V变电构架结构中推广应用。As a reasonable structure in mechanical properties, the concrete filled steel tube （CFT） structure generally has considerable economic value. To promote construction of CFT structure in 750 kV substation, and provide theoretical basis for construction of the Qiaowan 750 kV substation in Gansu, experiment study on three kinds of key connection joints is performed. Test results show that all joints used in project have high strength reserve and ductility, and the failure form are all satisfied with ＇strong connection and weak bar＇ design principle. It is can be widely applied in 750 kV CFT substation after summarization on engineering projects. This work is supported by the Ministry of Housing and Urban-Rural Development （MOHURD） project （No. 2014-K2-01 l）, the Shaanxi Natural Science Foundation （No. 2014JM7244）, the Special Research Foundation （No. 2013JK0977） from the Education Institution of Shaanxi, 2014 Research Project of the SGCC （State Grid Corpotation of China） Supporting Innovative Construction and Infrastructure Technologies.

关 键 词：钢管混凝土结构 750kV变电构架 结构设计 关键节点 试验研究 

分 类 号：TM63[电气工程—电力系统及自动化]