合肥要素大市场大跨度连体结构分析与设计

Analysis and design on large span steel trusses in a connected building

合肥要素大市场工程采用4组大跨度连体桁架将4个独立单元连成整体,连体桁架跨度分别为51.6m和34.4m。对连体桁架及其支座进行了强度及变形分析,对连体部分进行了舒适度分析、温度内力分析及混凝土收缩内力分析,并根据分析结果采取了相应的构造措施。分析结果表明,中震弹性和舒适度指标为连体部分结构的控制指标。

Four towers were connected by four groups of trusses.Span of the trusses was 51.6m and 34.4m.Strength and deformation analysis was carried out on the steel trusses and the supports.Comfort analysis,temperature analysis and concrete shrinkage analysis were also studied.Construction measures were adopted in the structure based on the analysis results.The results show that the elastic design under intermediate earthquake and comfort design are control indexes of the large span trusses of the connected building.