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Abstract

Compared with traditional cast-in-place concrete piers, prefabricated socket piers have the advantages of easy construction, but they are more likely to be damaged under earthquakes. In order to optimize its seismic performance, the CFRP reinforcement method was used to strengthen socket piers. Based on the existing tests, a three-dimensional finite element model was established by using Abaqus software to analyze the seismic performance indexes such as hysteretic properties and residual deformation of the socket piers under the combined action of axial compression load and low-cycle reciprocating load. The research results show that the advantages of the CFRP cloth are not obvious when the loading displacement grade is low, but when the loading displacement grade is high, the hysteretic properties and residual deformation of the specimens strengthened by CFRP cloth are greatly improved. CFRP can improve the bearing capacity and deformation capacity of the socket piers, which is conducive to the continued operation and overall repair of the piers after the earthquake.

Publication Date

11-24-2023

DOI

10.14048/j.issn.1671-2579.2023.05.019

First Page

109

Last Page

113

Submission Date

March 2025

Reference

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