【24h】

Bond test of lapped rebars and concrete: some preliminary results

机译:覆盖钢筋和混凝土的债券测试:一些初步结果

获取原文

摘要

When a steel rebar inside a reinforced concrete member is overloaded, it yields and experiences reduction in cross section area. In particular when pit corrosion occurs on steel rebar, reduced effective cross section leads to stress concentration. Snapping of steel rebar may become the worst situation. With this occurrence, the composite action of concrete and steel will be totally lost. In order to recover the performance of RC members with snapped (or about to snap) steel rebar, a new rebar splice arrangement is proposed. The new splice employs the use of separated straight bars to provide overlapping effect to the two snapped portions of main steel rebar. The new arrangement allows no misalignment of main reinforcement. In this preliminary study, a series of test specimens containing the lapped rebars were tested, the main variable in the experiment was the length of additional lapping bars. The effects of constant bending and constant shear loading condition on the splice strength were investigated and reported in this paper.
机译:当钢筋混凝土构件内的钢筋重载过载时,它会产生和经历横截面区域的减少。特别是当在钢钢筋发生坑腐蚀时,减少的有效横截面导致应力集中。钢筋抢购可能成为最糟糕的情况。通过这种情况,混凝土和钢的复合作用将完全丢失。为了恢复RC成员用扣除(或即将捕捉)钢钢筋的rc成员,提出了一种新的钢筋拼接安排。新的拼接采用分离的直线杆的使用,为主钢钢筋的两个被捕获的部分提供重叠效果。新安排允许没有对主要钢筋的不对。在这项初步研究中,测试了一系列含有叠层钢筋的试样,实验中的主要变量是附加研磨条的长度。本文研究了恒定弯曲和恒定剪切负载条件对接头强度的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号