Seismic behavior of steel eccentrically braced frames under soft-soil seismic sequences

被引：11
|
作者：
Ruiz-Garcia, Jorge [1 ]
Bojorquez, Eden [2 ]
Corona, Edgar [2 ]
机构：
[1] Univ Michoacana, Fac Ingn Civil, Edificio C,Cd Univ, Morelia 58040, Michoacan, Mexico
[2] Univ Autonoma Sinaloa, Fac Ingn Civil, Calz Amer & Blvd Univ,Cd Univ, Culiacan 80040, Mexico
来源：
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING | 2018年 / 115卷
关键词：
Eccentrically braced frame; Soft soils; Link rotation; Seismic sequences; Aftershocks; PERFORMANCE EVALUATION; ENERGY DEMANDS; LINK BEAMS; DESIGN; BUILDINGS; SHEAR; ZONE;
D O I：
10.1016/j.soildyn.2018.08.018
中图分类号：
P5 [地质学];
学科分类号：
0709 ; 081803 ;
摘要：
The goal of this paper is to examine the seismic response of eccentrically braced frames (EBFs) under artificial narrow-band mainshock-aftershock sequences by means of detailed analytical models representative of buildings designed under the Mexico City Code criteria. These analytical models take into account the nonlinear behavior of the links including a failure criterion. Relevant results for engineering practice showed that strong aftershocks could significantly increase interstory drift demands once the link fails, while surrounding members (adjacent beams, columns) behave nonlinearly, which is opposite to the design philosophy. In addition, it was noted the nonuniform distribution of hysteretic energy along-height of the links, which do not take fully advantage of the energy dissipating capacity of the shear links.
引用
收藏
页码：119 / 128
页数：10
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