均布荷载作用下受拉钢筋暴露的简支梁残余承载力分析  

Analyse of remanent strength of RC beams with exposed tensile reinforcement under equal-distributed load

作　　者：李文[1] 张素梅[2] 

机构地区：[1]大庆石油学院土木建筑工程学院,黑龙江大庆163318 [2]哈尔滨工业大学土木工程学院,黑龙江哈尔滨150090

出　　处：《地震工程与工程振动》2006年第3期155-158,共4页Earthquake Engineering and Engineering Dynamics

基　　金：黑龙江省教育厅科技一般项目(10531042)

摘　　要：利用数值分析方法,详细讨论了在均布荷载作用下受拉钢筋暴露的钢筋混凝土简支梁的工作性能,给出了影响开口梁残余承载力性能的参数及影响大小,并结合理论给出了一些施工建议和要点,为解开口梁在加固过程中残余承载力的变化提供了基础,为合理地选择加固施工方法和技术提供了科学的依据。According to the numerical analytical theory suggested by the first author, a discussion is carried out about the influence of various parameters （ width and height of exposed main reinforcement, percentage area of reinforcement in beam section, strength of concrete, if minimal top steel is used, distance of the end of exposed reinforcement from the left support）on the ultimate load bearing capacity of beams with exposed tensile reinforcement under the equal-distributed load. And according to the analytical theory, some advice and outline have been brought forward. The influence of the biggest parameter on the remanent strength is the height of exposed main＂ reinforcement. When the edge of the exposed main reinforcement lies in the position of maximal moment, the depressed extent of the remanent strength is the biggest. It is a support to reinforced construction.

关 键 词：钢筋暴露 钢筋混凝土梁 工作性能 均布荷载 残余承载力 

分 类 号：P315.97[天文地球—地震学]