Fragility Curves Development for Single Span Slab Bridges: A Case Study for Peshawar, Pakistan

Authors

  • Omair Shafiq Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia
  • Saffuan Wan Ahmad Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia
  • Syed Muhammad Ali Department of Civil Engineering, University of Engineering and Technology, Peshawar, 21250 Peshawar, Pakistan
  • Muhammad Waqas Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia
  • Ghufranullah Khan Department of Civil Engineering, Tianjin University, Tianjin 300072, China
  • Muhammad Aimran Amzar Kamarudin Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia

DOI:

https://doi.org/10.37934/aram.133.1.177190

Keywords:

Fragility curves, single span bridges, Pakistan, vulnerability studies

Abstract

Bridges play a critical role in a country's transportation network and assessing their vulnerability to seismic events is essential for effective risk management. This study focuses on the vulnerability assessment of single span slab bridges in Peshawar, Pakistan, located in seismic zone 2B, through nonlinear dynamic time history analysis using Incremental Dynamic Analysis Technique. Fragility curves are developed, considering ultimate limit states such as pounding between the slab and backwall, leading to backwall failure and subsequent backfill passive pressure failure. The methodology encompasses model generation, loading analysis and fragility curve derivation. Empirical data collected from inventory surveys and theoretical modelling in CSi Bridge software inform model generation, while loading analysis incorporates acceleration time history plots from actual records and artificially generated spectra. Fragility curves are derived using MATLAB from capacity curves generated through Incremental Dynamic Analysis. Results indicate that single span slab bridges in Peshawar can withstand seismic loading requirements corresponding to a return period of 2475 years. The study aims to assist policymakers in prioritizing maintenance and allocating resources effectively to enhance infrastructure resilience. Furthermore, a simplified conclusion underscores the importance of ongoing maintenance and risk mitigation efforts for ensuring long-term infrastructure sustainability and community safety in earthquake-prone regions.

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Author Biographies

Omair Shafiq, Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia

omair.shafiq1998@gmail.com

Saffuan Wan Ahmad, Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia

saffuan@umpsa.edu.my

Syed Muhammad Ali, Department of Civil Engineering, University of Engineering and Technology, Peshawar, 21250 Peshawar, Pakistan

Ali@uetpeshawar.edu.pk

Muhammad Waqas, Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia

mwaqasbtk@gmail.com

Ghufranullah Khan, Department of Civil Engineering, Tianjin University, Tianjin 300072, China

ghufranullahkhan@tju.edu.cn

Muhammad Aimran Amzar Kamarudin, Faculty of Civil Engineering Technology, Universiti Malaysia Pahang Al Sultan Abdullah, 26300 Kuantan, Pahang, Malaysia

amzaraimran@gmail.com

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Published

2025-02-28

How to Cite

Shafiq, O., Wan Ahmad, S., Ali, S. M., Waqas, M., Khan, G., & Kamarudin, M. A. A. (2025). Fragility Curves Development for Single Span Slab Bridges: A Case Study for Peshawar, Pakistan. Journal of Advanced Research in Applied Mechanics, 133(1), 177–190. https://doi.org/10.37934/aram.133.1.177190

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