Seismic Performance Limit States Assessment of Bridge Piers by Numerical Analysis and Experimental Damage Observations

Seismic Performance Limit States Assessment of Bridge Piers by Numerical Analysis and Experimental Damage Observations
  IJETT-book-cover           
  
© 2021 by IJETT Journal
Volume-69 Issue-10
Year of Publication : 2021
Authors : Mohamed Saad Abbadi, Nouzha Lamdouar
DOI :  10.14445/22315381/IJETT-V69I10P221

How to Cite?

Mohamed Saad Abbadi, Nouzha Lamdouar, "Seismic Performance Limit States Assessment of Bridge Piers by Numerical Analysis and Experimental Damage Observations," International Journal of Engineering Trends and Technology, vol. 69, no. 10, pp. 168-177, 2021. Crossref, https://doi.org/10.14445/22315381/IJETT-V69I10P221

Abstract
A numerical model of the bridge piers is achieved through the OpenSees program in order to predict the nonlinear global and local responses, expressed as displacements, forces and strains. The model is first evaluated by comparing the numerical forcedisplacement response with the corresponding experimental force-displacement response for different degrees of damages. Also, the limit states are compared to see how accurately the model predicts the local behavior as well. Experimental results of 39 columns tested under cyclic loading by several authors are used. These columns cover the main parameters of interest for typical bridge piers, such as geometry, longitudinal and transverse reinforcement ratio, and axial loading ratio. The results of this comparison have led to the conclusion that the numerical model can accurately predict the observed damage sequence and, therefore, the limit states that will be used to achieve the performance objectives. Safety coefficients are proposed to cover the error between the numerical model and experimental responses.

Keywords
Performance objectives, OpenSees, Pushover analysis.

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