首页> 外文会议>Structures congress >Seismic Performance of Reinforced Concrete Wall with Superelastic Shape Memory Alloy Rebar
【24h】

Seismic Performance of Reinforced Concrete Wall with Superelastic Shape Memory Alloy Rebar

机译:超弹性形状记忆合金钢筋混凝土墙体的抗震性能。

获取原文

摘要

The superelastic shape memory alloy (SMA) rebar can significantly improve the seismic performance of reinforced concrete (RC) structures. This study was motivated from a blind prediction contest of a full-scale 7-storey RC shear wall building at the University of California, San Diego. A finite element (FE) analysis was conducted to investigate the seismic performance of RC shear wall with the application of SMA rebar. The SMA rebar was applied at the plastic hinge location of the shear wall only and the steel rebar was used for all other sections. The seismic performance of shear wall was evaluated by performing incremental dynamic analysis (IDA) using 13 ground motions. The seismic demand was recorded in terms of inter-storey drift ratio until the full collapse of the building. The safety of the wall was measured in terms of collapse margin ratio (CMR) explicitly considering the uncertainty. The results show that the SMA rebar significantly improved the performance of the shear wall building and yielded higher CMR as compared to the conventional RC building.
机译:超弹性形状记忆合金(SMA)钢筋可以显着提高钢筋混凝土(RC)结构的抗震性能。这项研究的动机是在加利福尼亚大学圣地亚哥分校的一幢全尺寸7层RC剪力墙建筑的盲目预测比赛中进行的。进行了有限元(FE)分析,以研究使用SMA钢筋的RC剪力墙的抗震性能。 SMA钢筋仅应用于剪力墙的塑料铰链位置,而所有其他部分均使用钢筋。通过使用13种地面运动进行增量动力分析(IDA)来评估剪力墙的抗震性能。根据层间漂移率记录地震需求,直到建筑物完全倒塌为止。墙体的安全性是根据塌陷裕度比(CMR)明确考虑不确定性来衡量的。结果表明,与传统的RC建筑物相比,SMA钢筋显着改善了剪力墙建筑物的性能,并产生了更高的CMR。

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