首页|期刊导航|哈尔滨工业大学学报（英文版）|Experimental research on ultimate bearing capacity of grouted-round-steel-tube N-joint
哈尔滨工业大学学报（英文版）2007，Vol.14Issue(3)：322-329,8.
Experimental research on ultimate bearing capacity of grouted-round-steel-tube N-joint
Experimental research on ultimate bearing capacity of grouted-round-steel-tube N-joint
摘要
Abstract
As an important structural member in self-supporting concrete floor during construction, encased steel truss-concrete composite beam has brilliant prospect in outer-jacketing structures for adding stories or mega frame structures. Compared with encased angle truss, encased round steel tube truss can facilitate layout of itself in column and facilitate layout and anchorage of prestressed reinforcement placed horizontally. N-joint is wildly used in encased steel truss. For cave-in failure easily occurs in hollow steel-tube joint, the idea that the chord is grouted to increase cave-in bearing capacity of hollow tube is proposed. Test results of 8 grouted-roundsteel-tube N-joints from the beginning of loading to failure are reported. Mechanical property and failure mode of this kind of truss joint are analyzed, and the formulas of ultimate bearing capacity of the joint corresponding to different failure modes are established. All these can provide basic data for spreading encased steel truss-concrete composite beam.关键词
grouted-round-steel-tube N-joint/model test/simulated analysis/failure mode/bearing capacityKey words
grouted-round-steel-tube N-joint/model test/simulated analysis/failure mode/bearing capacity分类
建筑与水利引用本文复制引用
ZHENG Wen-zhong,LIU Xu-dong,ZHANG Ge-ming,ZHANG Bo-yi..Experimental research on ultimate bearing capacity of grouted-round-steel-tube N-joint[J].哈尔滨工业大学学报（英文版）,2007,14(3):322-329,8.基金项目
Sponsored by the New Century Excellent Talents in University ( Grant No. 290 ) （ Grant No. 290 ）
Heilongiiang Key Program on Science and Technology ( Grant No.GC04 A609 ) and Harbin Key Program on Science and Technology( Grant No. 2004AA9CS187 ). （ Grant No.GC04 A609 ）
