...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Earthquake Engineering >TORSIONAL EFFECTS IN THE PUSHOVER-BASED SEISMIC ANALYSIS OF BUILDINGS
【24h】

TORSIONAL EFFECTS IN THE PUSHOVER-BASED SEISMIC ANALYSIS OF BUILDINGS

机译：基于推力的建筑地震分析中的扭转效应

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 general trends of the inelastic behaviour of plan-asymmetric structures have been studied. Systems with structural elements in both orthogonal directions and bi-axial eccentricity were subjected to bi-directional excitation. Test examples include idealised single-storey and multi-storey models, and a three-storey building, for which test results are available. The response in terms of displacements was determined by nonlinear dynamic analyses. The main findings, limited to fairly regular and simple investigated buildings, are: (a) The amplification of displacements determined by elastic dynamic analysis can be used as a rough, and in the majority of cases conservative estimate in the inelastic range, (b) Any favourable torsional effect on the stiff side, which may arise from elastic analysis, may disappear in the inelastic range. These findings can be utilised in the approximate pushover-based seismic analysis of asymmetric buildings, e.g. in the N2 method. It is proposed that the results obtained by pushover analysis of a 3D structural model be combined with the results of a linear dynamic (spectral) analysis. The former results control the target displacements and the distribution of deformations along the height of the building, whereas the latter results define the torsional amplifications. The proposed approach is partly illustrated and evaluated by test examples.
机译：研究了平面不对称结构非弹性行为的一般趋势。具有在正交方向和双轴偏心率上都具有结构元素的系统受到双向激励。测试示例包括理想的单层和多层模型，以及三层建筑物，可提供其测试结果。通过非线性动力学分析确定了位移响应。主要发现仅限于相当正规和简单的受调查建筑物，它们是：（a）可以将通过弹性动力分析确定的位移放大作为粗略的估计，在大多数情况下，可以在非弹性范围内进行保守估计，（b）可能由于弹性分析而导致的在刚性侧面上的任何有利扭转效果都可能在非弹性范围内消失。这些发现可用于不对称建筑物的近似基于推覆的地震分析，例如在N2方法中建议将通过3D结构模型的推覆分析获得的结果与线性动态（光谱）分析的结果相结合。前一个结果控制目标位移和沿建筑物高度的变形分布，而后一个结果定义扭转放大率。通过测试示例对提出的方法进行了部分说明和评估。

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