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Lateral load patterns for the conceptual seismic design of moment-resisting frame structures.

机译:抗弯框架结构概念抗震设计的侧向荷载模式。

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摘要

This study deals with the development of lateral load patterns for the conceptual seismic design of moment-resisting frame structures. The proposed lateral load patterns are based on inelastic behavior and are a fundamental component of a proposed seismic design methodology to limit the extent of structural damage in the system and distribute this damage uniformly along the height. These load patterns are expected to provide a uniform distribution of story ductility ratios when compared to the distributions obtained with moment-resisting frames designed based on the code-compliant design lateral load patterns. The implementation of the aforementioned methodology would not only distribute damage along the height of the frame, but also help avoid undesirable dynamic responses that occur once structural damage is concentrated in one or in a few stories, e.g., story drift amplifications caused by P-delta effects. The family of structural models used in this study is composed of six to eighteen-story moment resisting frame structures with fundamental periods of vibration that vary from 0.6 s. to 3.0 s. On the input side, two basic types of ground motions are used: far-field and near-field ground motions. The proposed design lateral load patterns are a function of the fundamental period of the structural system, the target level of inelastic behavior (or damage), the total height of structures, and the frequency content of the ground motions.
机译:这项研究涉及用于抗弯框架结构概念抗震设计的侧向荷载模式的发展。拟议的侧向荷载模式基于非弹性行为,是拟议的抗震设计方法的基本组成部分,旨在限制系统中结构性破坏的程度,并将这种破坏性沿高度均匀分布。与基于基于代码合规的设计横向载荷模式设计的抗弯框架获得的分布相比,这些载荷模式有望提供故事延展性比率的均匀分布。前述方法的实施不仅将沿框架的高度分布破坏,而且还有助于避免一旦结构破坏集中在一个或几个故事中时发生的不良动态响应,例如,由P-delta引起的故事漂移放大效果。本研究中使用的结构模型系列由6到18层的抗力矩框架结构组成,其基本振动周期为0.6 s。至3.0 s。在输入端,使用两种基本类型的地震动:远场和近场地震动。拟议的设计侧向荷载模式是结构系统基本周期,非弹性行为(或破坏)的目标水平,结构的总高度以及地震动频率含量的函数。

著录项

  • 作者

    Park, Kyungha.;

  • 作者单位

    University of Maryland, College Park.;

  • 授予单位 University of Maryland, College Park.;
  • 学科 Engineering Civil.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 218 p.
  • 总页数 218
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 建筑科学;
  • 关键词

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