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Probabilistic Performance-based Earthquake Engineering by Endurance Time Analysis

Rostampour, Mohammad Ali | 2016

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 50400 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Esmaeil Purestekanchi, Homayoon; Mahsuli, Mojtaba
  7. Abstract:
  8. In this research, probability distribution of structural demand is estimated using a simplified dynamic analysis which is named Endurance Time method. In this method, the structure is subjected to nonlinear dynamic time history analysis, which its acceleration increases in time. It can be extracted the median of structural demand for earthquakes with different return periods. In customary researches, this estimation is performed using Incremental Dynamic Analysis knowns as IDA. The significant computational effort of IDA is the dominant obstacle that researchers and engineers encounter with. The main advantage of Endurance Time method is the fast estimation of structural demands by reducing computational efforts with reasonable accuracy. For example, only one Endurance Time analysis is needed to estimate median of structural response subjected to earthquakes with various return periods. To apply this method in performance-based engineering framework, it is needed to determine standard deviation in addition to median. Therefore, the main objective of this paper is to estimate probabilistic distribution function of structural demand given the intensity of earthquake. This function is a component of probabilistic performance-based earthquake engineering method. Accuracy and computational demand of Endurance Time method will be compared with IDA. Moreover, comparison of the results of these analyses with the simplified analysis procedure introduced in ATC-58 is another subject that is investigated in this research
  9. Keywords:
  10. Probabilistic Methods ; Incremental Dynamic Analysis ; Steel Structures ; Endurance Time Method ; Performance-Based Earthquake Engineering

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