Journal of Seismology and Earthquake Engineering

Journal of Seismology and Earthquake Engineering

Performance Assessment of Steel Isolated Structures Considering Heating in Lead Core Based on Seismic Risk

Document Type : Structural Earthquake Engineering

Authors
Majid Gholhaki 1
Mehdi Banazadeh 2
Hossein Parvini Sani 1
1 Semnan University
2 Amirkabir University of Technology (Tehran Polytechnic)
10.48303/jsee.2016.240749
Abstract
This paper presents a methodology to utilize performance-based seismic design procedure for evaluating the effect of heating in lead core of isolated structures with lead-rubber bearing based on collapse assessment and seismic loss estimation. Nonlinear archetypes of conventional 4-story steel special moment resisting frame, isolated intermediate moment resisting frame with and without heating in lead core effect are compared with each other under far-field (FF) and near-field (NF) earthquakes. The results of this study show that heating in lead core increases collapse risk, expected annual loss (EAL) and expected annual fatalities up to 40%. Besides, it has been found that the effect of heating in lead core for isolated structures increases under NF comparing with FF ground motions. Sensitivity analysis is employed to study the effect of modeling uncertainty on the loss estimation process show that the effect of modeling uncertainty on the EAL increases for NF ground motions comparing with FF ground motions.
Keywords
Isolated structures
Loss estimation
Heating in lead core
Performance-based seismic design
Seismic Risk
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Journal of Seismology and Earthquake Engineering
Volume 18, Issue 4 - Serial Number 4
Autumn 2016
Pages 263-273

  • Receive Date 24 May 2016
  • Accept Date 26 December 2020
  • Publish Date 01 October 2016