...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Boundary frame contribution in coupled and uncoupled steel plate shear walls
【24h】

Boundary frame contribution in coupled and uncoupled steel plate shear walls

机译：耦合和非耦合钢板剪力墙的边界框架贡献

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

The steel plate shear wall (SPSW) system is a robust option for earthquake resistance due to the strength, stiffness, ductility and energy dissipation that it provides. Although thin infill plates are efficient for resisting lateral loads, boundary frames that are proportioned based on capacity design requirements add significant structural weight that appears to be one of the factors limiting the use of the system in practice. An alternate configuration, the SPSW with coupling (SPSW-WC), was explored recently as an option for increasing architectural flexibility while also improving overall system economy and seismic performance. The SPSW-WC, which extensively employs flexural boundary frame contribution, has shown promise in analytical, numerical and experimental studies, but recent research on uncoupled SPSWs suggests that boundary frame contribution should not be considered for carrying seismic design shear. As a result, in the present study, boundary frame contribution in SPSWs was explored with detailed three-dimensional finite element models, which were validated against large-scale SPSW-WC tests. Six-story systems were considered, and the study matrix included single and double uncoupled SPSWs along with coupled SPSWs that had various degrees of coupling. Variations in design methodology were also explored. The modeling framework was employed to conduct static monotonic and cyclic pushover analyses and dynamic response history analysis. These analyses demonstrate the beneficial effect of coupling in SPSWs and illustrate the need to consider boundary frame contribution in design of coupled SPSWs. In addition, sharing design shear between the infill plate and the boundary frame is more generally shown to not be detrimental if this sharing is done in the design stage based on elastic analysis and the resulting boundary frame provides adequate secondary strength and stiffness following infill plate yielding. Copyright (C) 2017 John Wiley & Sons, Ltd.
机译：钢板剪力墙（SPSW）系统由于其强度，刚度，延展性和能量耗散而成为抗震的可靠选择。尽管薄的填充板可有效抵抗侧向载荷，但根据承载能力设计要求进行配比的边界框架会增加相当大的结构重量，这似乎是限制该系统在实践中使用的因素之一。最近，人们探索了一种可选的配置，即带连接的SPSW（SPSW-WC），它可以作为增加体系结构灵活性的选择，同时也可以提高整体系统的经济性和抗震性能。 SPSW-WC广泛采用弯曲边界框架的贡献，在分析，数值和实验研究中都显示出了希望，但是最近对未耦合SPSW的研究表明，在进行地震设计剪切时不应考虑边界框架的贡献。结果，在本研究中，通过详细的三维有限元模型探索了SPSWs中的边界框架贡献，并通过大规模SPSW-WC试验对其进行了验证。考虑了六层系统，研究矩阵包括单和双未耦合的SPSW以及具有不同耦合程度的已耦合SPSW。还探讨了设计方法的变化。该建模框架用于进行静态单调和循环推覆分析以及动态响应历史分析。这些分析证明了SPSW中耦合的有益效果，并说明了在耦合SPSW设计中需要考虑边界框架的影响。此外，如果在设计阶段基于弹性分析完成此共享，则填充板与边界框架之间的共同设计剪力通常不会受到损害，并且所得边界框架在填充板屈服后提供足够的二次强度和刚度。版权所有（C）2017 John Wiley＆Sons，Ltd.

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