Analysis and design of resilient deck‐to‐pier connections for tsunami‐prone coastal bridges

Abstract This paper introduces a framework for designing resilient deck‐to‐pier connections that aims to address bridge vulnerability to tsunami loading. This framework presents a novel application of displacement design methods. Analytical and numerical models were developed for use in the framework, which enable the proposed bridge deck‐to‐pier connection response to be characterized. The numerical model uses nonlinear tsunami pushover analyses to simulate the superstructure response, while the analytical model uses a simplified formulation of the monolithic beam analogy. Validation was conducted using experimental data, which demonstrated that both models could accurately replicate the response of mild steel, stainless steel, and glass fiber‐reinforced polymer connections under tsunami uplift. Finally, a study was undertaken using the numerical model to extend the conclusions of the experimental testing. The findings of this numerical study highlighted that these connections can be customized for different situations to optimize bridge resilience to tsunami loading.