A story damage index of seismically-excited buildings based on modal frequency and mode shape

被引：56
作者：
Wang, Jer-Fu [1 ]
Lin, Chi-Chang [1 ]
Yen, Shih-Min [1 ]
机构：
[1] Natl Chung Hsing Univ, Dept Civil Engn, Taichung 40227, Taiwan
来源：
ENGINEERING STRUCTURES | 2007年 / 29卷 / 09期
关键词：
system identification; damage assessment; damage index; earthquake record;
D O I：
10.1016/j.engstruct.2006.10.018
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
In this paper, a story damage index (SDI) is developed and expressed as a simple formula based on modal frequency and mode shape obtained from real earthquake records. It is useful because only one set of modal parameters is required for the calculation of the SDI to show the degree of damage of the storey in question. According to numerical simulation results, it is shown that the proposed SDI has both high accuracy and high reliability. The approximate SDI, named ASDI, is more convenient and can be applied without the floor mass information. It is verified by some numerical simulations and the experimental data analysis for a benchmark (IASC-ASCE Phase 11) model. This ASDI is also applied to the damage assessment of a 7-storey reinforced concrete hotel building in Van Nuys, California, which experienced severe structural damage during the 1994 Northridge earthquake. With both its fundamental frequency and mode shape identified by the SRIM (System Realization using Information Matrix) identification technique, it is shown that the ASDI agrees fairly well with the results of the visual inspection, and is valuable in practical application. (C) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码：2143 / 2157
页数：15
相关论文
共 16 条
[1]  
Allemang R.J., 1982, P INT MODAL ANAL C, P110
[2]   Damage identification in continuous beams and frame structures using the Residual Error Method in the Movement Equation [J].
Brasiliano, A ;
Doz, GN ;
de Brito, JLV .
NUCLEAR ENGINEERING AND DESIGN, 2004, 227 (01) :1-17
[3]   Bayesian analysis of the Phase II IASC-ASCE structural health monitoring experimental benchmark data [J].
Ching, J ;
Beck, JL .
JOURNAL OF ENGINEERING MECHANICS-ASCE, 2004, 130 (10) :1233-1244
[4]   Correlation study between seismic acceleration parameters and damage indices of structures [J].
Elenas, A ;
Meskouris, K .
ENGINEERING STRUCTURES, 2001, 23 (06) :698-704
[5]   Comparative study of damage identification algorithms applied to a bridge: I. Experiment [J].
Farrar, CR ;
Jauregui, DA .
SMART MATERIALS & STRUCTURES, 1998, 7 (05) :704-719
[6]   Ambient vibration tests of a seven-story reinforced concrete building in Van Nuys, California, damaged by the 1994 Northridge earthquake [J].
Ivanovic, SS ;
Trifunac, MD ;
Novikova, EI ;
Gladkov, AA ;
Todorovska, MI .
SOIL DYNAMICS AND EARTHQUAKE ENGINEERING, 2000, 19 (06) :391-411
[7]   System realization using information matrix [J].
Juang, JN .
JOURNAL OF GUIDANCE CONTROL AND DYNAMICS, 1997, 20 (03) :492-500
[8]   Structural damage assessment of building structures using dynamic experimental data [J].
Kim, HS ;
Chun, YS .
STRUCTURAL DESIGN OF TALL AND SPECIAL BUILDINGS, 2004, 13 (01) :1-8
[9]   Damage identification in beam-type structures: frequency-based method vs mode-shape-based method [J].
Kim, JT ;
Ryu, YS ;
Cho, HM ;
Stubbs, N .
ENGINEERING STRUCTURES, 2003, 25 (01) :57-67
[10]   Multi-stage identification scheme for detecting damage in cablestayed Kap Shui Mun Bridge [J].
Ko, JM ;
Sun, ZG ;
Ni, YQ .
ENGINEERING STRUCTURES, 2002, 24 (07) :857-868
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