The static equivalent principle was used in order to obtain the equivalent nodalforces by excavating release.
本文采用静力等效原则，以获得等效开挖释放节点力。
2
But force shape functions in flexibility methods establish the relations of nodalforces and section forces, and the results are exact.
而基于力的形函数的柔度法建立了单元两端与单元内部力的关系，能够得到精确的结果。
3
Then, the concrete slab is divided into several layers and the relationships between the nodalforces and displacements of each layer slab are established.