Seismic fragility relationships of reinforced concrete high-rise buildings

Jun Ji, Amr S. Elnashai, Daniel A. Kuchma

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A complete methodology is presented for the seismic fragility assessment of reinforced concrete high-rise buildings. The key steps of the methodology are illustrated through an example of the fragility assessment of an existing 54-story building with a dual core wall system. The set of rigorously derived probabilistic fragilities are the first published for high-rise reinforced concrete buildings. The inelastic nonlinear dynamic analyses for the fragility assessments are made using a simplified lumped-parameter model that was derived from highly detailed FE models using genetic algorithms. New definitions for performance limit states were based on the results of detailed pushover analyses of a distributed inelastic nonlinear finite element model that includes shear-flexure-axial interaction effects. To develop the fragility relationships, 1800 dynamic response history analyses were conducted. This study considered uncertainty in structural material values as well as in seismic demand. Thirty strong motion records were selected for use in the analyses that would produce an appropriate range in structural response characteristics due to variation in magnitude, distance and site condition. The overall approach is generic and can be applied to developing computationally efficient and probabilistically-based seismic fragility relationships for reinforced concrete high-rise buildings of different configurations.

Original languageEnglish (US)
Pages (from-to)259-277
Number of pages19
JournalStructural Design of Tall and Special Buildings
Volume18
Issue number3
DOIs
StatePublished - Apr 1 2009

Fingerprint

Reinforced concrete
Concrete buildings
Dynamic response
Genetic algorithms
Uncertainty

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Architecture
  • Building and Construction

Cite this

Ji, Jun ; Elnashai, Amr S. ; Kuchma, Daniel A. / Seismic fragility relationships of reinforced concrete high-rise buildings. In: Structural Design of Tall and Special Buildings. 2009 ; Vol. 18, No. 3. pp. 259-277.
@article{133067d2641a481483a90f25180c59b3,
title = "Seismic fragility relationships of reinforced concrete high-rise buildings",
abstract = "A complete methodology is presented for the seismic fragility assessment of reinforced concrete high-rise buildings. The key steps of the methodology are illustrated through an example of the fragility assessment of an existing 54-story building with a dual core wall system. The set of rigorously derived probabilistic fragilities are the first published for high-rise reinforced concrete buildings. The inelastic nonlinear dynamic analyses for the fragility assessments are made using a simplified lumped-parameter model that was derived from highly detailed FE models using genetic algorithms. New definitions for performance limit states were based on the results of detailed pushover analyses of a distributed inelastic nonlinear finite element model that includes shear-flexure-axial interaction effects. To develop the fragility relationships, 1800 dynamic response history analyses were conducted. This study considered uncertainty in structural material values as well as in seismic demand. Thirty strong motion records were selected for use in the analyses that would produce an appropriate range in structural response characteristics due to variation in magnitude, distance and site condition. The overall approach is generic and can be applied to developing computationally efficient and probabilistically-based seismic fragility relationships for reinforced concrete high-rise buildings of different configurations.",
author = "Jun Ji and Elnashai, {Amr S.} and Kuchma, {Daniel A.}",
year = "2009",
month = "4",
day = "1",
doi = "10.1002/tal.408",
language = "English (US)",
volume = "18",
pages = "259--277",
journal = "Structural Design of Tall and Special Buildings",
issn = "1541-7794",
publisher = "John Wiley and Sons Ltd",
number = "3",

}

Seismic fragility relationships of reinforced concrete high-rise buildings. / Ji, Jun; Elnashai, Amr S.; Kuchma, Daniel A.

In: Structural Design of Tall and Special Buildings, Vol. 18, No. 3, 01.04.2009, p. 259-277.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Seismic fragility relationships of reinforced concrete high-rise buildings

AU - Ji, Jun

AU - Elnashai, Amr S.

AU - Kuchma, Daniel A.

PY - 2009/4/1

Y1 - 2009/4/1

N2 - A complete methodology is presented for the seismic fragility assessment of reinforced concrete high-rise buildings. The key steps of the methodology are illustrated through an example of the fragility assessment of an existing 54-story building with a dual core wall system. The set of rigorously derived probabilistic fragilities are the first published for high-rise reinforced concrete buildings. The inelastic nonlinear dynamic analyses for the fragility assessments are made using a simplified lumped-parameter model that was derived from highly detailed FE models using genetic algorithms. New definitions for performance limit states were based on the results of detailed pushover analyses of a distributed inelastic nonlinear finite element model that includes shear-flexure-axial interaction effects. To develop the fragility relationships, 1800 dynamic response history analyses were conducted. This study considered uncertainty in structural material values as well as in seismic demand. Thirty strong motion records were selected for use in the analyses that would produce an appropriate range in structural response characteristics due to variation in magnitude, distance and site condition. The overall approach is generic and can be applied to developing computationally efficient and probabilistically-based seismic fragility relationships for reinforced concrete high-rise buildings of different configurations.

AB - A complete methodology is presented for the seismic fragility assessment of reinforced concrete high-rise buildings. The key steps of the methodology are illustrated through an example of the fragility assessment of an existing 54-story building with a dual core wall system. The set of rigorously derived probabilistic fragilities are the first published for high-rise reinforced concrete buildings. The inelastic nonlinear dynamic analyses for the fragility assessments are made using a simplified lumped-parameter model that was derived from highly detailed FE models using genetic algorithms. New definitions for performance limit states were based on the results of detailed pushover analyses of a distributed inelastic nonlinear finite element model that includes shear-flexure-axial interaction effects. To develop the fragility relationships, 1800 dynamic response history analyses were conducted. This study considered uncertainty in structural material values as well as in seismic demand. Thirty strong motion records were selected for use in the analyses that would produce an appropriate range in structural response characteristics due to variation in magnitude, distance and site condition. The overall approach is generic and can be applied to developing computationally efficient and probabilistically-based seismic fragility relationships for reinforced concrete high-rise buildings of different configurations.

UR - http://www.scopus.com/inward/record.url?scp=67149146567&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67149146567&partnerID=8YFLogxK

U2 - 10.1002/tal.408

DO - 10.1002/tal.408

M3 - Article

AN - SCOPUS:67149146567

VL - 18

SP - 259

EP - 277

JO - Structural Design of Tall and Special Buildings

JF - Structural Design of Tall and Special Buildings

SN - 1541-7794

IS - 3

ER -