A Methodology for Assessing the Component-Level Fragility Curves and Its Application to a Class of Integral Abutment Bridges
Publication: ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 9, Issue 1
Abstract
Seismic vulnerability assessment of structures is a major research area and the output, i.e., fragility curves (FCs), within a probabilistic framework, devises effective seismic disaster mitigation. The present study proposes a novel methodology for obtaining the structural component-level FC through two new approaches with respect to the assessment of seismic demand and the computation of fragility. The present study evolves an existing nonlinear static method by a few steps to be able to assess the probabilistic demands and develops a numerical computation technique that exploits the actual profiles of the evaluated distributions of the structural capacity and demand data in a study to obtain the fragility magnitudes. The substitute methodology is implemented to derive the FCs of a class of integral abutment bridges while assessing the demands in a simple manner and avoiding the complexities of dynamic analysis and yet with reliable precision as well as averting the misjudgment of fragilities stemming from the lognormal or normal fit on the data, which are practically very rough fit or misfit to it, as imposed in the traditional fragility formulation.
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Data Availability Statement
All data, models or code generated or used during the study appear in the published article.
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Information & Authors
Information
Published In
ASCE-ASME Journal of Risk and Uncertainty in Engineering Systems, Part A: Civil Engineering
Volume 9 • Issue 1 • March 2023
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Apr 27, 2022
Accepted: Jul 31, 2022
Published online: Nov 7, 2022
Published in print: Mar 1, 2023
Discussion open until: Apr 7, 2023
ASCE Technical Topics:
- Analysis (by type)
- Bridge abutments
- Bridge components
- Bridge engineering
- Computing in civil engineering
- Curvature
- Earthquake engineering
- Engineering fundamentals
- Geometry
- Geotechnical engineering
- Mathematics
- Methodology (by type)
- Numerical analysis
- Numerical methods
- Probability
- Seismic effects
- Seismic tests
- Structural engineering
- Tests (by type)
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