计静;汪洋;陈晓坤;姜良芹;张文福;张云峰;袁朝庆;刘迎春;

• 1:东北石油大学黑龙江省防灾减灾工程与防护工程高校重点实验室

• 2:南京工程学院建筑工程学院

摘要(Abstract)：

以套箍指标、钢管内外混凝土强度等级、钢管外围混凝土配箍率、组合柱纵筋总配筋率和组合柱截面含钢管混凝土率为主要参数,设计36根配钢管高强混凝土芯柱的异强组合短柱(SGCC)构件;借助ABAQUS有限元软件,选取合理的材料非线性本构模型及网格尺寸,建立18根试验试件的有限元模型并分析轴压性能,比较有限元数值解与试验数据;提取36根组合短柱应力—变形云图和轴力—应变全过程曲线,考察轴压承载力、弹性阶段刚度和延性等参数的变化规律;根据有限元数值解,引入轴压承载力折减因数,基于叠合原理建立SGCC轴压承载力简化计算公式。结果表明:SGCC钢管高强混凝土套箍指标、钢管外围混凝土配箍率和组合柱截面含钢管混凝土率对组合柱轴压承载力和延性影响显著。该结果为SGCC框架体系的工程应用提供指导。

关键词(KeyWords)：钢管高强混凝土芯柱;异强组合柱;本构模型;轴压性能;承载力;有限元

Abstract:

Keywords:

基金项目(Foundation):国家自然科学基金项目(51178087);国家自然科学基金东北石油大学校培育基金项目(NEPUPY-1-16);; 黑龙江省自然科学基金面上项目(E201336);; 黑龙江省级领军人才梯队后备带头人资助项目(RCHB-6);; 中国石油科技创新基金项目(2016D-5007-0608);; 中国石油和化学工业联合会科技指导计划项目(2017-11-5);; 东北石油大学校级研究生创新科研项目(YJSCX2016-031NEPU);; 黑龙江省教育厅科研专项经费东北石油大学优势科研方向凝练基金项目(2016YSFX-02)

作者(Author):计静;汪洋;陈晓坤;姜良芹;张文福;张云峰;袁朝庆;刘迎春;

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