论文部分内容阅读
针对连云港体育中心体育场顶篷预应力斜拉钢网格结构工程中拉索张拉力大、数目多、相互影响大、卸载后结构变形大的特点,通过ANSYS有限元分析软件对不同张拉方式进行对比分析,包括初始预应力态结构分析、张拉拉索前拆除满堂支架结构分析、满堂支架支撑网壳时虚拟张拉分析及局部拆除支架的虚拟张拉分析,掌握了预应力拉索张拉过程中索力变化和结构变形的规律,最终选取主动张拉桅杆外侧的背索,被动张拉屋面上的前索的施工方案。并对拉索的施工方案做了介绍。
Aiming at the characteristics of large tensile force, large number of cables, large mutual influence and large structural deformation of cables during the prestressed cable-stayed steel grid structure of stadium roof canopy in Lianyungang Sports Center, different tensioning methods are carried out by ANSYS finite element analysis software The comparative analysis includes the analysis of the initial prestressed structure, the analysis of the full support structure of the pre-tensioned cable, the virtual tension analysis of the full support structure and the virtual tensile analysis of the partial removal support, Cable force changes and structural deformation of the law, the final selection of the active tension mast outside the back cable, the passive tension roof of the cable construction program. And the cable construction program was introduced.