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[1]郑山锁,刘立国,董立国,等.锈蚀RC框架节点核心区剪切恢复力模型[J].建筑科学与工程学报,2026,(01):162-172.[doi:10.19815/j.jace.2024.11027]
　ZHENG Shansuo,LIU Liguo,DONG Liguo,et al.Shear hysteretic model for core area of corroded RC frame joints[J].Journal of Architecture and Civil Engineering,2026,(01):162-172.[doi:10.19815/j.jace.2024.11027]
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锈蚀RC框架节点核心区剪切恢复力模型(PDF)
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《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:
期数:
2026年01期
页码:
162-172
栏目:
建筑结构
出版日期:
2026-01-20

文章信息/Info

Title:
Shear hysteretic model for core area of corroded RC frame joints
文章编号:
1673-2049(2026)01-0162-11
作者:
郑山锁1,2，刘立国1，董立国3，杨松1，李健1，丛峻4
（1.西安建筑科技大学 土木工程学院，陕西 西安 710055； 2. 西安建筑科技大学 结构工程与抗震教育部重点实验室，陕西? 西安 710055； 3. 中国建筑西北设计研究院有限公司，陕西 西安 710018； 4. 中国建筑第六工程局有限公司，天津 300171）
Author(s):
ZHENG Shansuo1,2, LIU Liguo1, DONG Liguo3, YANG Song1, LI Jian1, CONG Jun4
（1. College of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, Shaanxi, China;? 2. Key Lab of Structural Engineering and Earthquake Resistance of Ministry of Education, Xi’an University of? Architecture and Technology, Xi’an 710055, Shaanxi, China; 3. China Northwest Architectural Design and? Research Institute Co., Ltd, Xi’an 710018, Shaanxi, China; 4. China Construction Sixth Engineering? Bureau Co., Ltd, Tianjin 300171, China）
关键词:
锈蚀RC框架节点; 剪切恢复力模型; 抗震性能; OpenSEES
Keywords:
corroded RC frame joint;  shear hysteretic model;  seismic behavior;  OpenSEES
分类号:
TU375
DOI:
10.19815/j.jace.2024.11027
文献标志码:
A
摘要:
为满足一般大气条件下在役RC框架结构抗震分析的需求，对12榀RC框架节点进行了人工加速腐蚀和拟静力加载试验，探究了锈蚀水平、轴压比变化对节点破坏模式、滞回性能以及核心区抗剪性能的影响；基于试验结果的多参数回归分析，建立了锈蚀RC节点核心区的剪切恢复力模型，并在OpenSEES软件中利用Joint2D和纤维梁柱单元建立了锈蚀RC节点的组合体数值模型。结果表明：锈蚀RC节点的破坏模式均为节点核心区的剪切破坏，锈蚀程度与轴压比的增大会削弱RC节点及其核心区的承载能力与变形能力，导致抗震性能发生劣化；提出的剪切恢复力模型能够较全面反映不同锈蚀程度和不同轴压比RC节点核心区的剪切滞回特性；建立的锈蚀RC节点组合体数值模型的荷载模拟相对误差基本不超过10%，变形模拟相对误差基本不超过20%，最终破坏时的累积耗能相对误差也基本控制在30%以内；基于锈蚀RC节点核心区剪切恢复力模型所建立的节点组合体数值模型能够较准确模拟往复加载作用下锈蚀RC节点的滞回性能，可用于一般大气环境下RC节点及框架的抗震分析评估。
Abstract:
In order to meet the seismic analysis requirements of in-service RC frame structures under general atmospheric conditions, artificial accelerated corrosion and quasi-static loading tests were conducted on 12 RC frame joints to investigate the effects of corrosion level and axial compression ratio changes on joint failure mode, hysteresis performance, and core shear performance. Based on the multi-parameter regression analysis of the experimental results, the shear hysteretic model for the core area of corroded RC joints was established, and a composite numerical model of corroded RC joints was established using Joint2D and fiber beam column elements in OpenSEES software. The results show that the failure mode of corroded RC joints is shear failure in the core area of joint. The increase in the degree of corrosion and axial compression ratio will weaken the bearing capacity and deformation capacity of RC joint and its core area, leading to a deterioration in seismic behavior. The proposed shear hysteretic model can comprehensively reflect the shear hysteresis characteristics of RC joint core areas with different degrees of corrosion and axial compression ratios. The relative error of load simulation for the established numerical model of corroded RC joint combination is basically no more than 10%, the relative error of deformation simulation is basically no more than 20%, and the cumulative energy dissipation relative error during final failure is also basically controlled within 30%. The numerical model of the joint combination based on the shear hysteretic model of the core area of corroded RC joints can accurately simulate the hysteresis performance of corroded RC joints under reciprocating loading, and can be used for seismic analysis and evaluation of RC joints and frames in general atmospheric environments.

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备注/Memo

备注/Memo:
国家自然科学基金项目(52278530)；陕西省重点研发计划项目(2021ZDLSF06-10)
更新日期/Last Update: 2026-01-20