Seismic vulnerability assessment of tilt-up concrete structures

Jong Wha Bai, Mary Beth D. Hueste, Paolo Gardoni

Research output: Contribution to journalArticle

Abstract

This paper focuses on seismic vulnerability assessment for one-story tilt-up concrete structures. To capture the potential failure mechanisms, an analytical modelling approach using nonlinear properties is developed and verified with measured data from a shake table test documented in the literature. Nonlinear dynamic analyses using synthetic ground motions for Memphis, Tennessee, are performed to assess dynamic behaviour of the buildings. Then, probabilistic demand models for multiple limit states that represent potential failure mechanisms are developed with a Bayesian updating approach. These demand models are used in conjunction with appropriate capacity limits to develop fragility curves that provide a probabilistic measure of the seismic vulnerability of typical tilt-up concrete buildings. This study shows that the vulnerability of typical tilt-up structures in Mid-America is significant when seismic hazards are high. In addition, it is found that the aspect ratio of building geometry has a significant impact on the seismic performance and fragility estimates of tilt-up buildings.

Original languageEnglish (US)
Pages (from-to)1131-1146
Number of pages16
JournalStructure and Infrastructure Engineering
Volume11
Issue number9
DOIs
StatePublished - Sep 2 2015

Keywords

  • concrete structures
  • dynamic analysis
  • earthquake engineering
  • probabilistic models
  • structural reliability

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Safety, Risk, Reliability and Quality
  • Geotechnical Engineering and Engineering Geology
  • Ocean Engineering
  • Mechanical Engineering

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