Performance-based seismic risk assessment for buildings equipped with linear and nonlinear viscous dampers

被引:81
作者
Tubaldi, E. [1 ]
Barbato, M. [2 ,3 ]
Dall'Asta, A. [1 ]
机构
[1] Univ Camerino, Sch Architecture & Design, I-63100 Ascoli Piceno, AP, Italy
[2] Louisiana State Univ, Dept Civil & Environm Engn, Baton Rouge, LA 70803 USA
[3] A&M Coll, Baton Rouge, LA 70803 USA
基金
美国国家科学基金会;
关键词
Performance-based earthquake engineering; Seismic risk assessment; Viscous dampers; Non-stationary random process; PARAMETER UNCERTAINTY; VISCOELASTIC DAMPERS; STRUCTURAL SYSTEMS; ADJACENT BUILDINGS; DYNAMIC-ANALYSIS; RELIABILITY; EARTHQUAKE; DESIGN; OPTIMIZATION; EXCITATION;
D O I
10.1016/j.engstruct.2014.04.052
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
This paper introduces an efficient methodology for assessing the seismic risk of structural systems equipped with linear and nonlinear viscous damping devices while accounting for the uncertainties affecting both seismic input and model parameters. The proposed methodology employs a combination of efficient and accurate analytical and simulation techniques to estimate the probabilistic properties of the structural response under a seismic input modeled as a non-stationary stochastic process. The effectiveness of the proposed methodology is illustrated through a parametric study, with respect to the dampers' properties, of the performance of two adjacent steel buildings connected by linear and nonlinear viscous dampers. The results of the study provide useful information regarding the accuracy of the approximations introduced by the proposed reliability assessment approach, and the effectiveness of the added dampers in reducing the system seismic risk. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:90 / 99
页数:10
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