Work

Robust Optimisation of Performance‐Based Seismic Design of Reinforced Concrete Bridge Piers

Year: 2025

Type: article

Abstract: ABSTRACT A significant challenge in performance‐based seismic design (PBSD) is to manage uncertainties in a cost‐efficient manner. This highlights the necessity of integrating PBSD with a robust design optimisation (RDO) methodology. The objective is to find optimal solutions that are not only safe and cost‐effective but also minimally sensitive to variations in input noise parameters such as record‐to‐record variability (RTRV) of ground motions and uncertainties related to structural properties. In this study, for the first time, an RDO formulation is tailored to the PBSD of reinforced concrete (RC) bridge piers. The developed optimisation framework is applied to the PBSD of RC piers following the specifications of fib Model Code 2010. The obtained results provide valuable insights into the trade‐offs between economic costs and robustness of RC pier design solutions. They also underscore the importance of the proposed RDO method in decision‐making processes, highlighting solutions that may be slightly more expensive but significantly more robust compared to the most economical options.

Source: Earthquake Engineering & Structural Dynamics

DOI: 10.1002/eqe.70026

Authors: Soheil Soltanieh, Panagiotis E. Mergos, Andreas J. Kappos

Institutions: University of London, City St George's, University of London, Khalifa University of Science and Technology

Language: English

Topic: Seismic Performance and Analysis

Subfield: Civil and Structural Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Industry, innovation and infrastructure

Open Access status: bronze

OpenAlex ID: W4412873981

FWCI: 1.145

Cites: 44

Cited by: 3

Related to: 10