双钢板混凝土组合墙平面内抗剪性能:理论分析与数值模拟
发布时间：2019-04-03 15:41
【摘要】：为了研究核电工程中双钢板混凝土组合墙体平面内受剪机理以及平面内受剪荷载与应变的对应关系,以7个核电工程中平面内受剪双钢板混凝土组合墙体的试验数据为基础,通过对组合墙体受力的合理简化假设,推导出组合墙在不同受力阶段时的荷载公式和应变公式;并进行有限元模拟与之对比.比较结果显示,计算值和有限元值与试验值吻合较好,但计算值的极限荷载略小于试验测得的极限荷载,到达极限荷载时有限元计算的应变值要小于试验测得的应变.进一步分析表明,有限元分析结果能反映极限荷载时混凝土墙体的裂缝方向,栓钉和拉结筋对平面内受剪时极限荷载有一定的影响,而有限元分析中较难准确模拟出组合结构平面受剪时的边界条件.
[Abstract]:In order to study the in-plane shear mechanism of double steel plate concrete composite wall in nuclear power project and the corresponding relationship between in-plane shear load and strain, the experimental data of in-plane shear double steel plate concrete composite wall in 7 nuclear power projects are taken as the basis. The load formula and strain formula of the composite wall under different loading stages are derived through the reasonable simplified assumption of the combined wall force. The finite element simulation is compared with it. The comparison results show that the calculated values and the finite element values are in good agreement with the experimental values, but the calculated limit load is slightly smaller than the limit load measured by the test, and the calculated strain value is less than the measured strain when the ultimate load reaches the limit load. Further analysis shows that the finite element analysis results can reflect the crack direction of the concrete wall under the ultimate load, and the stud and tension bar have a certain effect on the ultimate load of the concrete wall under shear in the plane. In finite element analysis, it is difficult to accurately simulate the boundary conditions of composite structures subjected to plane shear.
【作者单位】： 东北电力大学建筑工程学院;北京工业大学建筑工程学院;中国地震局地球物理研究所;京安城际铁路有限公司;
【基金】：国家自然科学基金项目(51508074);国家自然科学基金创新群体项目(51421005) 东北电力大学博士启动基金(BSJXM-201421)
【分类号】：TU398.9
[Abstract]:In order to study the in-plane shear mechanism of double steel plate concrete composite wall in nuclear power project and the corresponding relationship between in-plane shear load and strain, the experimental data of in-plane shear double steel plate concrete composite wall in 7 nuclear power projects are taken as the basis. The load formula and strain formula of the composite wall under different loading stages are derived through the reasonable simplified assumption of the combined wall force. The finite element simulation is compared with it. The comparison results show that the calculated values and the finite element values are in good agreement with the experimental values, but the calculated limit load is slightly smaller than the limit load measured by the test, and the calculated strain value is less than the measured strain when the ultimate load reaches the limit load. Further analysis shows that the finite element analysis results can reflect the crack direction of the concrete wall under the ultimate load, and the stud and tension bar have a certain effect on the ultimate load of the concrete wall under shear in the plane. In finite element analysis, it is difficult to accurately simulate the boundary conditions of composite structures subjected to plane shear.
【作者单位】： 东北电力大学建筑工程学院;北京工业大学建筑工程学院;中国地震局地球物理研究所;京安城际铁路有限公司;
【基金】：国家自然科学基金项目(51508074);国家自然科学基金创新群体项目(51421005) 东北电力大学博士启动基金(BSJXM-201421)
【分类号】：TU398.9
【相似文献】
相关期刊论文 前10条
1 王劭婷;;北京榆构研制成功透光混凝土[J];混凝土世界;2009年07期
2 杨秋;透光混凝土[J];国外科技动态;2004年04期
3 郭占林;混凝土墙身外观质量的施工分析[J];山西交通科技;2003年S1期
4 韦计富;;混凝土裂缝产生的原因及其处理措施探讨[J];科技信息(科学教研);2007年28期
5 金栋良;;混凝土墙上箱盒安装一次成型施工方法[J];中国新技术新产品;2008年17期
6 赵亚;;浅议提高混凝土通道外观质量的措施[J];内蒙古科技与经济;2008年04期
7 王滋军;刘伟庆;;建筑模网混凝土在我国的研究与应用现状[J];混凝土;2011年08期
8 李芝芳;拆除混凝土的新方法[J];施工技术;1984年03期
9 张树风,刘晓松;立用脉冲—回波技术测定混凝土裂缝深度[J];广州建筑;1999年01期
10 陈宏达;;建筑空间艺术与混凝土的材质表现力[J];室内设计;2001年01期
相关会议论文 前10条
1 吴崇豪;no兆}，
本文编号：2453337
本文链接：https://www.wllwen.com/jianzhugongchenglunwen/2453337.html
