摘要
在房屋建筑基础设计中，对钢筋砼薄板基础没有具体的设计计算规范。因而在设计中大多采用倒置梁法来计算。这一方法虽然简单，但有明显的不足，即所求得纵向弯矩误差较大；又无法得到板横向的内力值，所以板沿横向的配筋仅靠经验而定，既不准确，又不经济。本文视地基基础板为Ｗｉｎｋｌｅｒ地基上弹性薄板，利用有限差分法求解弹性薄板的内力，不但可求得沿板纵方向的内力值，同时，还求得了沿板横向的内力值，为合理配筋设计提供了理论依据和新的设计计算方法。
In the design of foundation of building,there is no calculation standard for reinforced concretefoundation,So the inverted beam method is mostly used for it's design. Although this method is easy touse,it has obvious shortconcings.The vertical bending moment obtainal with it has larger error. More-over it can not be use to calculate the lateral internal forces.Therefore the lateral reinforcing has to bedecide on experences. Such an reinforcing is neither curate nor econanial.In this paper, assuming thefoundation be elastic plate on winkler ground,the writer tried the finite deference method to calcalatethe internal forces of the elastic plate,This method can not only be used to obtain the vertical internalforce,but also the lateal forces and therefore privides a theoretical basis for rational reinforting and anew design method.
关键词
薄板内力
差分法
房屋建筑
设计
Winkler assume , difference method, internal force of eiastic plate.
