• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of structural engineering >Experimental Assessment of the System-Level Seismic Performance of an Asymmetrical Reinforced Concrete Block-Wall Building with Boundary Elements
【24h】

Experimental Assessment of the System-Level Seismic Performance of an Asymmetrical Reinforced Concrete Block-Wall Building with Boundary Elements

机译：具有边界元的不对称钢筋混凝土砌块房屋系统级抗震性能的实验评估

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Using boundary elements in reinforced masonry (RM) walls allows closed ties to be used and multiple layers of vertical bars to be accommodated, thus providing a confining reinforcement cage. This enhances the overall performance of the RM wall relative to conventional RM wall with rectangular cross sections, which typically have a single-leg horizontal reinforcement and a single layer of vertical reinforcement. In addition, with the expected shift of design code developers' focus from the component-level to the system-level assessment of seismic force resisting systems (SFRS), there is a need to experimentally quantify the system-level performance of RM buildings. To address this, an experimental asymmetrical two-story reduced-scale RM shear wall building with boundary elements, referred to as Building IV, was tested to failure under reversed cyclic loading that simulates seismic demands. Building IV was designed to have the same lateral resistance as a previously tested RM shear wall building with conventional rectangular configuration (without boundary elements), referred to as Building III, to allow for direct comparison. Therefore, after a brief summary of the experimental program, the focus of this paper is to compare the damage sequence and the load-displacement hysteretic behavior between the two buildings. The results show that higher levels of ductility accompanied by relatively smaller strength degradation were achieved during the test of Building IV compared to that of Building III. This study enlarges the database of system-level experimental results in an effort to facilitate the adoption of RM shear walls with boundary elements as a SFRS category within the next editions of the American and the Canadian masonry design standards. (C) 2017 American Society of Civil Engineers.
机译：在钢筋砌筑（RM）墙中使用边界元素可以使用封闭式扎带，并可以容纳多层垂直钢筋，从而提供了一个封闭的钢筋笼。相对于具有矩形横截面的常规RM壁，RM壁的总体性能得到了增强，常规的RM壁通常具有单腿水平钢筋和单层垂直钢筋。另外，随着设计代码开发人员的关注点从抗震系统（SFRS）的组件级别转移到系统级别的评估，需要对RM建筑物的系统级别性能进行实验量化。为了解决这个问题，在模拟地震需求的反向循环荷载作用下，试验了带有边界元素的实验性不对称两层缩小RM剪力墙建筑物，称为IV号建筑物。建筑物IV的设计具有与先前测试的具有常规矩形配置（无边界元素）的RM剪力墙建筑物相同的侧向阻力，被称为建筑物III，以便进行直接比较。因此，在对实验程序进行简要总结之后，本文的重点是比较两座建筑物之间的破坏顺序和荷载-位移滞后行为。结果表明，与III号建筑相比，IV号建筑的测试获得了更高的延展性，同时强度下降相对较小。这项研究扩大了系统级实验结果的数据库，以促进在美国和加拿大砌体设计标准的下一版中采用带有边界元素的RM剪力墙作为SFRS类别。 （C）2017年美国土木工程师学会。

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