基于分层壳单元的楼板面内受力性能研究
Study on Mechanical Behavior of Floor Surface Based on Layered Shell Elements
王程 1范重 2张艳霞 1张爱林1
作者信息
- 1. 北京建筑大学土木与交通工程学院,北京 100044
- 2. 北京建筑大学土木与交通工程学院,北京 100044;中国建筑设计研究院,北京 100044
- 折叠
摘要
为研究楼板在地震作用下的受力性能,采用非线性有限元软件ABAQUS分层壳单元对剪力墙试验结果进行模拟对比,确定所采用混凝土与钢材本构以及计算参数的可靠性.针对典型混凝土楼板在复杂受力状态下的受力性能进行有限元分析,考察简化计算方法对评估楼板面内拉、压、剪承载力的适用性.分析结果表明,采用简化方法确定混凝土楼板在设防烈度下的承载力时,与有限元计算结果较为一致.根据工程中混凝土楼板在地震作用下的损伤判别标准,提出楼板抗震性能加强措施.
Abstract
To study the stress performance of the floor under seismic action,the nonlinear finite element software ABAQUS layered shell element is used to simulate and compare the test results of the shear wall,and to determine the reliability of the concrete and steel constitution and calculation parameters.The finite element analysis of the stress properties of typical concrete floors under complex stress conditions is carried out,and the applicability of the simplified calculation method to evaluate the in-plane tensile,compressive and shear bearing capacity of the floor is investigated.The analysis results show that the simplified method is consistent with the finite element calculation results when determining the bearing capacity of concrete floors under fortification intensity.The measures to strengthen the seismic performance of the floor are put forward in accordance with the damage criteria of concrete floors under seismic action in engineering.
关键词
楼板/分层壳单元/承载力/抗震性能/有限元分析Key words
floor slabs/layered shell elements/bearing capacity/seismic performance/finite element analysis引用本文复制引用
基金项目
中国建设科技集团中央研究院科技创新基金(Z2020C01)
出版年
2024
NETL
NSTL
维普
万方数据