钢筋混凝土延性耗能墙抗震性能细观有限元分析  

Mesoscopic finite element analysis on seismic performanceof ductile energy-dissipating wall of reinforced concrete

作　　者：刘春阳[1,2] 黄潍雨 史若凡 苏静 丁吴寒 李新桐 LIU Chunyang;HUANG Weiyu;SHI Ruofan;SU Jing;DING Wuhan;LI Xintong(School of Civil Engineering,Shandong Jianzhu University,Jinan 250101,China;Key Laboratory of Building Structural Retrofitting and Underground Space Engineering(Shandong Jianzhu University),Ministry of Education,Jinan 250101,China;China Railway Jinan Group Co.,Ltd.,Jinan 250001,China)

机构地区：[1]山东建筑大学土木工程学院,山东济南250101 [2]山东建筑大学建筑结构加固改造与地下空间工程教育部重点实验室,山东济南250101 [3]中国铁路济南局集团有限公司,山东济南250001

出　　处：《山东建筑大学学报》2025年第2期20-26,共7页Journal of Shandong Jianzhu University

基　　金：国家自然科学基金项目(52278507);山东省自然科学基金项目(ZR2022ME160)。

摘　　要：在底层柔性结构中设置延性耗能墙是提高抗震性能的有效手段。文章采用有限元分析软件,建立了钢筋混凝土延性耗能墙细观有限元模型,分析了不同加载应变率条件下耗能墙的抗震性能变化规律。结果表明:细观有限元模型能够较好地模拟该结构的力学性能指标及破坏模式,墙体的配置条件相同时,应变率的增加对耗能墙试件的承载力影响较小,其最大仅可提高约6.6%,但对耗能墙试件的变形能力影响较大,而延性系数最大可提高约26.9%;在相同应变率条件下,以并列方式布置耗能墙试件的抗震性能优于单片耗能墙试件的,其延性系数最大可提高约17.8%。Installing ductile energy-dissipating walls in base-level is an effective way to enhance their seismic performance.Using finite element analysis software,this study establishes a meso-scale finite element model of reinforced concrete ductile energy-dissipating walls and analyzes the variation in seismic performance under different loading strain rates.The results show that the meso finite element model can accurately simulate the mechanical performance indicators and failure modes of the structure well.When the wall is held constant,increasing the strain rate has a limited effect on the load-bearing capacity of the energy-dissipating wall specimens,with a maximum improvement of approximately 6.6%,but it significantly affects the deformation capacity,increasing the ductility coefficient by up to 26.9%.Under the same strain rate conditions,specimens with energy-dissipating walls arranged in parallel demonstrate better seismic performance than single-wall specimens,with the ductility coefficient increasing by up to about 17.8%.

关 键 词：钢筋混凝土延性耗能墙 抗震性能 细观有限元分析 应变率 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程] TU398.2[自动化与计算机技术—控制科学与工程]