Simulation and numerical analysis of the seismic performance of the quick repaired seismic-damaged RC frame

IF 4.2 2区工程技术 Q1 ENGINEERING, GEOLOGICAL

Soil Dynamics and Earthquake Engineering Pub Date : 2024-11-13 DOI:10.1016/j.soildyn.2024.109083

Chang Gao , Liang Huang , Lei Wang , Qiang Sun , Yin Li

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引用次数: 0

Abstract

This paper presents a finite element (FE) analysis of the seismic performance of the quick repaired seismic-damaged RC frame under low cyclic loading. The quick repair was realized by applying the wire mesh combined with ultra-high early strength grouting materials. The FE model was established based on the constitutive relationship of each materials and validated against the previous experimental results in the literature. The simulated results indicated that the repair could effectively exert the seismic performance of RC frame. Then, the FE parametric analysis was conducted to investigate the influence of studied parameters on the seismic performance of the quick repaired seismic-damaged RC frame models. The analyzed parameters included the axial compressive ratio of columns, the thickness and the height of the repair layer. The numerical analysis showed that the seismic performance of quick repaired seismic-damaged RC frame could be enhanced by the certain increase of the axial compressive ratio. The thickness and height of the repair layer exhibited limited influence on the seismic performance of the RC frame. The paper reported the design suggestions for the quick repaired damaged RC frame.

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地震受损快速修复 RC 框架抗震性能的模拟和数值分析

本文对地震破坏的快速修复 RC 框架在低循环荷载下的抗震性能进行了有限元（FE）分析。快速修复是通过应用钢丝网和超高早强灌浆材料来实现的。根据每种材料的构成关系建立了有限元模型，并与之前的文献实验结果进行了验证。模拟结果表明，修补能有效发挥 RC 框架的抗震性能。然后，进行了有限元参数分析，研究了所研究参数对快速修复的地震损伤 RC 框架模型抗震性能的影响。所分析的参数包括柱的轴向压缩比、修复层的厚度和高度。数值分析表明，在一定程度上提高轴压比可以提高地震损伤快速修复 RC 框架的抗震性能。修复层的厚度和高度对 RC 框架抗震性能的影响有限。本文报告了快速修复受损 RC 框架的设计建议。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Soil Dynamics and Earthquake Engineering 工程技术-地球科学综合

CiteScore

7.50

自引率

15.00%

发文量

446

审稿时长

8 months

期刊介绍： The journal aims to encourage and enhance the role of mechanics and other disciplines as they relate to earthquake engineering by providing opportunities for the publication of the work of applied mathematicians, engineers and other applied scientists involved in solving problems closely related to the field of earthquake engineering and geotechnical earthquake engineering. Emphasis is placed on new concepts and techniques, but case histories will also be published if they enhance the presentation and understanding of new technical concepts.