Q460GJ钢焊接H形梁整体稳定性能试验研究  

TESTS ON LATERAL TORSIONAL BUCKLING BEHAVIOR OF WELDED Q460GJ STRUCTURAL STEEL BEAMS

作　　者：熊刚[1,2] 杨波[1,2] 王赛博 徐国友 戴国欣[1,2] 聂诗东[1,2] 胡鹰[1,2] 张伟富[1,2] 

机构地区：[1]山地城镇建设与新技术教育部重点实验室(重庆大学),重庆400045 [2]重庆大学土木工程学院,重庆400045 [3]中冶建工集团有限公司,重庆400000

出　　处：《工程力学》2016年第B06期214-218,226,共6页Engineering Mechanics

基　　金：国家自然科学基金项目(50808185;51078368);中央高校基本科研业务费科研专项项目(CDJZR12200007)

摘　　要：利用专门设计的加载装置和夹支支座,对六个加强受压翼缘单轴对称的Q460GJC焊接H形梁构件进行了跨中有侧向支撑且受集中荷载作用条件下的加载试验。通过试验数据与《钢结构设计规范》中有关钢梁整体稳定相关计算值比较发现,试验结果与依据GB50017-2003类似计算方法得到的结果相接近,与修订版GB50017-201X的计算值存在差异。Six singly symmetric H-section beams welded by Q460GJ flame-cut steel plates were tested under a concentrated force at middle-span. The tested beams were laterally restrained at middle-span. Compared with the design strength from Code for Design of Steel Structures （GB50017-2003） and the latest version of the steel structure design code （GB50017-201X）, it is found that the test results are very close to the strength calculated by GB50017-2003 and the resistance calculated by GB50017-201X is more conservative.

关 键 词：Q460GJ钢 焊接H形梁 整体稳定 侧扭屈曲 试验研究 

分 类 号：TU391[建筑科学—结构工程]