Based on the force behavior of joist of large-span prestressed space frame system, space finite element analysis of prestressed beam-slab system is carried out by using ANSYS software.
针对大跨度预应力空间框架体系托梁受力复杂的特点，采用ANSYS软件进行了预应力梁板体系的空间有限元分析。
In this paper, a new type of elements and the stiffness matrix have been developed, which can be used to eliminate the singularity in the finite element model such as space truss and frame.
本文提出了一个用于消除空间杆梁结构有限元模型中的无刚度“奇点”的元素及相应的刚度矩阵计算公式。
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