• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>European Journal of Environmental and Civil Engineering >Soil-structure interaction effects on RC structures within a performance-based earthquake engineering framework
【24h】

Soil-structure interaction effects on RC structures within a performance-based earthquake engineering framework

机译：基于性能的地震工程框架内土-结构相互作用对RC结构的影响

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

Performance-based earthquake engineering (PBEE) has emerged as a powerful method of analysis and design philosophy in earthquake engineering. Structures are generally assumed to be fixed at their bases in the process of analysis and design under dynamic loading. Response of structures under earthquakes is strongly influenced by the soil-structure system. In soil-structure interaction (SSI) problems, the ability to predict the coupled behaviour of the soil and the structure is essential and requires combined soil and structure models. In the context of PBEE, this paper combines structural behaviour and seismic response analysis of SSI systems. Related to SSI analysis, several issues are studied, such as relative importance of soil parameters, and relative foundation/soil stiffness ratio, in regards to a specified aspect of the system response (e.g. response parameters). A simplified approach is proposed to consider SSI effects on the nonlinear seismic response of a reinforced concrete structure using the nonlinear replacement oscillator method. This oscillator is characterised by an effective ductility along with the known effective period and damping of the system for the elastic condition. The N2 method is used to determine the nonlinear response and extended to include SSI in the design. It is confirmed that the response of the structure depends not only on its dynamic characteristics and on the seismic excitation characteristics but also on the external environment surrounding the base of the structure, i.e. the interaction between the structure, the foundation and the soil. The proposed approach is validated and compared with time history analysis and two other recognised methods.
机译：基于性能的地震工程（PBEE）已经成为地震工程中一种强大的分析和设计理念方法。通常假定结构在动态载荷下的分析和设计过程中固定在其基础上。地震作用下结构的响应受土壤-结构系统的强烈影响。在土壤-结构相互作用（SSI）问题中，预测土壤与结构的耦合行为的能力至关重要，并且需要结合土壤和结构模型。在PBEE的背景下，本文结合了SSI系统的结构特性和地震响应分析。与SSI分析相关，研究了一些问题，例如关于系统响应的特定方面（例如响应参数）的土壤参数的相对重要性以及相对的地基/土壤刚度比。提出了一种简化的方法，即考虑使用SSI对钢筋混凝土结构的非线性地震响应的影响，方法是使用非线性替代振子法。该振荡器的特征在于有效的延展性以及已知的有效周期和系统在弹性条件下的阻尼。 N2方法用于确定非线性响应，并扩展为在设计中包括SSI。可以确定的是，结构的响应不仅取决于其动力特性和地震激励特性，而且还取决于结构基础周围的外部环境，即结构，基础与土壤之间的相互作用。对该方法进行了验证，并与时程分析和其他两种公认的方法进行了比较。

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