焊接对化学植筋力学性能影响的试验研究  

TEST RESEARCH ON EFFECTS OF WELDING ON MECHANICAL PERFORMANCES OF CHEMICALLY-BONDED REBAR

作　　者：李辉[1] 张惠英[2] 杨军[2] 

机构地区：[1]北京市建筑设计研究院,北京100045 [2]清华大学土木工程系,北京100084

出　　处：《建筑技术》2006年第5期386-388,共3页Architecture Technology

摘　　要：在实际工程当中,植筋与其他钢筋进行焊接是很常用的作法,因此焊接高温对化学植筋力学性能的影响是一个亟待研究的问题。试验分别采用RE500和JGN两种结构胶植筋,对距离基材顶面的不同位置处焊接的9根试件进行静力拉拔试验,并对各试件及非焊接试件的荷载-滑移曲线进行比较分析,根据试验建议RE500和JGN胶体与焊接点的距离分别应在10d和20d以上。In engineering practice,it is a common method to weld bonded rebar with other steel bar.The influence of high temperature caused by weld on the mechanical behavior of chemically-bonded rebar is therefore an urgent problem that needs to be researched.With the bars bonded with structural adhesives RES00 and JGN respectively,static pulling experiments are made on 9 samples taken at different distances from the top surface of the base material ;and comparison are carried out on P-s curves of the samples and non-welding samples.The experiments suggest that the distances of adhesives RE500 and JGN from welding point should be above 10d and 20d respectively.

关 键 词：化学植筋 结构胶 焊接 

分 类 号：TU317[建筑科学—结构工程]