摘要
以钢管混凝土斜交相贯节点为研究对象,利用有限元软件ABAQUS建立三维实体模型,对方钢管混凝土相贯节点进行轴压荷载作用下非线性分析。分析钢管、核心混凝土、竖向连接板、加强环、衬板等各部件在轴向荷载作用下不同阶段的应力分布及构件破坏位置的变化,进一步明确相贯节点构造各部件的工作机理。针对分析结果所确定的多尺度界面位置,通过对相贯节点分别采用实体模型和多尺度模型进行算例分析,验证多尺度界面连接方法的合理性。对比分析结果表明多尺度模型可以很好地模拟关键构件微观部分的受力性能,且大大降低了计算量,节省计算时间。
With CFST（concrete filled steel tube）intersecting connection node as the research object,a 3 Dfinite element solid model was established by software ABAQUS,and then nonlinear analysis was conducted on the intersecting connection node of square concrete filled steel tube under axial compression loading.Stress variation of steel tube,core concrete,vertical connection plate,reinforcement ring plate,lining plate in the process of axial loading and the change of component damage location were analyzed in order to further clear about the working mechanism of intersecting connection.In this paper,according to the multi-scale analysis results by interface location,an intersecting connection was analyzed with solid model and multi-scale model,the reasonableness of multi-scale interface connection method was verified.Through comparative analysis,it shows that multi-scale model can well simulate the key components of micro parts mechanical performance,and greatly reduce the amount of calculation,saving computation time.
作者
王璐
桑丹
WANG Lu;SANG Dan(Engineering Department of Cunjin College, Guangdong Ocean University, Zhanjiang, Guangdong 524094, China;Architectural and Thermal Engineering Department, Shaanxi Institute of Technology, Xi＇an, Shaanxi 710300, China)
出处
《杨凌职业技术学院学报》
2018年第2期28-32,共5页
Journal of Yangling Vocational & Technical College
基金
国家自然科学基金项目(51478382)
陕西省自然科学基础研究基金重点项目(2016JZ015)
教育部长江学者和创新团队发展计划(IRT13089)
关键词
方钢管混凝土
相贯节点
受压性能
多尺度模型
square concrete filled steel tube
intersecting connection
compression performance
muhi-scale calculation model
