摘要
针对单向筒芯空心楼盖两个方向变截面刚度的问题,采用刚度均匀化的方法将空心薄板比拟成正交异性板.计算四边简支条件下,正交异性矩形薄板在竖向均布荷载作用下的挠度值,并分析在不同参数情况下板的挠度变化.可以得出:在一定范围内,板中心点处的挠度值随着顺筒方向筒间距的增加以近似线性的趋势减小;挠度值随着筒直径的增大而逐渐增加,且增速由慢到快;随着板厚的增加,挠度值减小速度由快到慢.
For an one-way cylinder core hollow floor had different rigidities in two orthogonal directions,this paper converted a circular voided slabs into an equivalent orthotropic by the method of rigidity homogenization.The deflection of the orthotropic rectangular thin plate under uniformly distributed load,with simply supported on four sides was calculated,and considering different parameters,we can draw a conclusion：in a certain range,the deflection of the plate of the midpoint decreased with increasing cylinder spacing along the tube direction to approximate linear trend;with the increase of tube diameter,the deflection gradually increased,and the increase speed is from slow to fast;with the increase of the thickness,the deflection decreases,and the decrease speed is from fast to slow.
出处
《湘潭大学自然科学学报》
CAS
北大核心
2015年第1期9-13,共5页
Natural Science Journal of Xiangtan University
关键词
空心楼盖
平均刚度
正交异性板
四边简支
挠度
hollow floor
the average stiffness
orthotropic plate
simply supported on four sides
deflection
