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寿光体育场为大跨度拉索空间结构,采用桅杆上设拉索悬挂屋盖内侧,屋盖外侧置于看台后部的钢筋混凝土柱上,屋盖采用钢管主次桁架体系。介绍该工程的结构体系、荷载取值,主要阐述该工程屋盖设计中的两个方面——钢拉索和滑动支座的设计方法,并对比设计控制数据及施工监测数据。结果表明:钢拉索的预拉索力和滑动支座的位移量在实施后均达到设计预期的结果。对于拉索空间结构,设计中应施加预拉索力使风荷载作用下拉索不退出工作;而对于大跨度空间结构,通过支座约束的改变,合理地选择最佳传力途径,可以改善抗震性能并节省造价。
Shouguang Stadium is a long-span cable space structure. The mast is provided with a cable suspension inner side of the roof, and the outer side of the roof is placed on the reinforced concrete column at the back of the grandstand. The roof adopts the steel primary and secondary truss system. This paper introduces the structural system and load value of the project, mainly elaborates two aspects of the roof design of the project - the design method of steel cables and sliding bearings, and compares the design control data with the construction monitoring data. The results show that the pre-tensioned force of the cable and the displacement of the sliding bearing reach the designed results after the implementation. For the cable space structure, the pre-tensioned cable force should be applied in the design so that the cable can not exit the work under the wind load. For the long-span space structure, the optimal transmission of force can be improved through the change of the bearing restraint, Performance and cost savings.