Seismic performance and repairability of the rocking piers with elliptical bottoms

IF 3.9 2区工程技术 Q1 ENGINEERING, CIVIL

Structures Pub Date : 2025-03-21 DOI:10.1016/j.istruc.2025.108649

Zhen Luo, Wenxue Zhang, Ying Chen, Yuhao Liu

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引用次数: 0

Abstract

To improve the seismic performance of high-pier continuous girder bridges, this study introduces an innovative elliptical-bottom rocking pier. Quasi-static test was conducted on to investigate the hysteresis behavior of the elliptical-bottom rocking pier. The results demonstrate that the elliptical-bottom rocking pier has self-centering and energy dissipation capabilities. The transition from a fixed state to a rocking state was induced through a designed failure in the cover plate. To evaluate the repairability of the elliptical-bottom rocking pier, the damaged specimen was repaired and the quasi-static test was repeated again. Compared to the original specimen, the seismic performance of the repaired specimen exhibited a slight reduction but remained satisfactory. This indicates that rapid and effective structure repair of the elliptical-bottom rocking pier can be achieved after earthquake. A finite element model was developed to accurately capture the restoring force characteristics and damage evolution. Additionally, the design suggestion for the cover plate were proposed and validated in conjunction with the structural stress state analysis.

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来源期刊

Structures Engineering-Architecture

CiteScore

5.70

自引率

17.10%

发文量

1187

期刊介绍： Structures aims to publish internationally-leading research across the full breadth of structural engineering. Papers for Structures are particularly welcome in which high-quality research will benefit from wide readership of academics and practitioners such that not only high citation rates but also tangible industrial-related pathways to impact are achieved.