...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Earthquake Engineering & Structural Dynamics >Experimental multi-level seismic performance assessment of 3D RC frame designed for damage avoidance
【24h】

Experimental multi-level seismic performance assessment of 3D RC frame designed for damage avoidance

机译：为避免损坏而设计的3D RC框架的多级实验抗震性能评估

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

This paper experimentally investigates the application of damage avoidance design (DAD) philosophy to moment-resisting frames with particular emphasis on detailing of rocking interfaces. An 80% scale three-dimensional rocking beam-column joint sub-assembly designed and detailed based on damage avoidance principles is constructed and tested. Incremental dynamic analysis is used for selecting ground motion records to be applied to the sub-assembly for conducting a multi-level seismic performance assessment (MSPA). Analyses are conducted to obtain displacement demands due to the selected near- and medium-field ground motions that represent different levels of seismic hazard. Thus, predicted displacement time histories are applied to the sub-assembly for conducting quasi-earthquake displacement tests. The sub-assembly performed well reaching drifts up to 4.7% with only minor spalling occurring at rocking beam interfaces and minor flexural cracks in beams. Yielding of post-tensioning threaded bars occurred, but the sub-assembly did not collapse. The externally attached energy dissipators provided large hysteretic dissipation during large drift cycles. The sub-assembly satisfied all three seismic performance requirements, thereby verifying the superior performance of the DAD philosophy.
机译：本文通过实验研究了避免损伤设计（DAD）原理在抗弯框架中的应用，特别强调了摇摆界面的细节。构造并测试了基于避免损伤原理设计和详细描述的比例为80％的三维摇梁-柱联合分组件。增量动态分析用于选择地面运动记录，以将其应用于子组件以进行多级地震性能评估（MSPA）。由于选择了代表不同地震危险等级的近场和中场地面运动，因此进行了分析以获得位移需求。因此，将预测的位移时间历史记录应用于子组件以进行准地震位移测试。该子组件的漂移达到了4.7％，在摇摆梁的界面处只有很小的散裂，梁中只有很小的弯曲裂纹。发生了预张紧螺纹钢筋的屈服，但子组件未塌陷。外部连接的耗能器在较大的漂移周期内提供了较大的磁滞耗散。该组件满足了所有三个地震性能要求，从而验证了DAD原理的卓越性能。

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