在平面有限元计算中，必须把轴承负荷转为节点力。
It is known that in plane finite element calculation the bearing load must be transformed into force of nodal.
本文采用静力等效原则，以获得等效开挖释放节点力。
The static equivalent principle was used in order to obtain the equivalent nodal forces by excavating release.
然后将混凝土板分成若干层，建立起每层板节点力与节点位移之间的关系。
Then, the concrete slab is divided into several layers and the relationships between the nodal forces and displacements of each layer slab are established.
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