大跨度预应力空间框架体系托梁受力分析

Force analysis of joist of large-span prestressed space frame system

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。详细讨论了预应力大梁和楼板对托梁的侧向弯矩、扭矩及整体受力性能的影响,得出一些有意义的结论,可供工程设计时参考。

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.The influences of prestressed beam and floor on the lateral moment,twist moment and integral force behavior of joist are discussed in detail.These calculating results can be referenced for the design.