Probabilistic evaluation framework for fire and fire following earthquake

Negar Elhami Khorasani, Maria Eugenia Moreyra Garlock, Paolo Gardoni

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

This work provides a probabilistic framework to evaluate the performance of a structure under fire and fire following earthquake, by studying response of the structure for several limit states and incorporating uncertainties in demand and capacity parameters. The multi-hazard framework is then applied to a steel moment resisting frame (MRF) to evaluate the structural performance of the MRF under post-earthquake fires. The study develops probabilistic models for key quantities with uncertainty including fire load, as well as yield strength and modulus of elasticity of steel at elevated temperatures. The MRF is analyzed under several fire scenarios and fire locations. Results show that the location of fire in the frame (e.g., lower vs. upper floors and interior vs. exterior bays) affects the element response. Compartments in the interior bays reach limit states faster than those on the perimeter of the frame, and upper floors reach limit states sooner than lower floors. The post-earthquake damage does not affect the structural response under fire for the considered limit states, but post-earthquake fire increases the drift demand on columns located at the perimeter of the structure.

Original languageEnglish (US)
Title of host publicationMulti-Hazard Approaches to Civil Infrastructure Engineering
PublisherSpringer International Publishing
Pages211-227
Number of pages17
ISBN (Electronic)9783319297132
ISBN (Print)9783319297118
DOIs
StatePublished - Jan 1 2016

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

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