...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Buildings >Structural Resistance of Reinforced Concrete Buildings in Areas of Moderate Seismicity and Assessment of Strategies for Structural Improvement
【24h】

Structural Resistance of Reinforced Concrete Buildings in Areas of Moderate Seismicity and Assessment of Strategies for Structural Improvement

机译：中等地震地区钢筋混凝土建筑物的结构抗力及结构改进策略的评估

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Moderate magnitude seismic events have occurred during the last decade in non-seismic areas and have highlighted that many existing buildings do not sufficiently resist these types of events. The objective of this work is to illustrate that most buildings dating from 2002?￠????2010 constructed from wide beams, which were designed to previous earthquake resistance codes, do not offer a satisfactory seismic behaviour, and to identify which structural attributes can best help alleviate this problem. In this work the effect of a real earthquake of medium magnitude (Lorca, 2011) on buildings of three, five and eight stories with unidirectional frames of wide-beam concrete was assessed. The methodology included non-linear static (pushover) analyses and dynamic response simulations with the aim to understand the effect on the seismic performance of changing some of the geometrical and material parameters. Maximum displacements and capacity curves for the top floor of a set of representative buildings were evaluated and compared. In particular, capacity curves obtained from non-linear static (pushover) analysis are compared for different building configurations, as well as the maximum displacements obtained through non-linear dynamic analysis. This paper highlights the seismic vulnerability of buildings constructed between 2002 and 2010 and the results indicate that a higher density of infill walls (walls whose bricks are not part of the main structure) is the feature that most significantly improves the seismic behaviour of the structures analysed. Moreover, counterintuitively, incorporating stronger concrete and reinforcing steel and using alternative column arrangements only have a small positive effect on the seismic behaviour of these types of buildings.
机译：在过去十年中，非地震地区发生了中等强度的地震事件，并突出表明许多现有建筑物不足以抵抗这些类型的地震。这项工作的目的是说明，从2002年至2010年的大多数采用宽梁建造的，按照以前的抗震规范设计的建筑物，都无法提供令人满意的抗震性能，并确定哪些结构属性可以最好地帮助减轻这个问题。在这项工作中，评估了一次中等地震（Lorca，2011年）对三层，五层和八层带有单向大梁混凝土框架的建筑物的影响。该方法包括非线性静态（推动）分析和动态响应模拟，旨在了解更改某些几何和材料参数对地震性能的影响。评估并比较了一组代表性建筑物的顶层的最大位移和承载力曲线。特别是，比较了通过非线性静态（推入式）分析获得的容量曲线以适应不同的建筑物配置，以及通过非线性动态分析获得的最大位移。本文重点介绍了2002年至2010年期间建造的建筑物的地震易损性，结果表明，较高密度的填充墙（其砖不属于主要结构的墙）是最显着改善所分析结构的地震性能的特征。 。此外，与直觉相反，掺入更坚固的混凝土和钢筋并使用替代的圆柱布置仅对这些类型的建筑物的地震行为产生很小的积极影响。

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