摘要
实际工程设计时,按照弹性理论方法查表计算的钢筋混凝土双向板挠度与其实际挠度存在较大偏差。本文利用有限元分析软件ANSYS中的SOLID 65单元和MATLAB程序,对钢筋混凝土双向板的挠度进行了模拟分析,基于模拟分析结果和单向受弯构件挠度计算方法,提出双向板挠度计算方法。针对提出的双向板挠度计算方法,采用已有的试验数据进行验证,结果表明,加载至极限荷载的60%~80%左右,根据本文方法计算的挠度值与试验值较为接近,且较试验值略偏大,结果偏于安全。
In practical engineering design,the deflection of the reinforced concrete two-way slab systems obtained by elastic theory method has significant difference with practical deflection. In this study,the finite element analysis software ANSYS SOLID 65 unit and MATLAB program were used to simulate the deflection of the reinforced concrete two-way slab systems. Based on the simulation results and the deflection calculation method for single flexural members,the deflection calculation formula of two-way slab was established,and comparing the deflection values calculated by the formula to the experimental results. The results show that under ultimate load of 60%~ 80%,the deflection values obtained by the deflection formula in this paper is closely with the test results. In addition,the deflection values obtained by the deflection formulas are slightly higher than the test results.
出处
《四川建筑科学研究》
北大核心
2016年第3期12-16,共5页
Sichuan Building Science
关键词
双向板
有限元法
钢筋混凝土
挠度
two-way slab
the finite element method
reinforced concrete
deflection
