武汉天河国际机场新塔台结构设计

武汉天河国际机场新航空塔台高115m,为国内第一、世界第二高民用塔台。该塔台建筑造型新颖,为非对称结构,高度高、截面尺寸小、头重脚轻。结构设计中对这些建筑特征采取了针对性的措施,设置有扩大尺寸的地下室改善结构的整体抗倾覆不利的状况;采用混凝土筒体增大截面抗侧刚度;上部功能区采用钢筋混凝土筒体+钢结构的混合结构,最大限度减小上部功能区的质量偏心,减小下部墙肢的受拉状况;顶层控制室采用只设4根钢柱的框架结构,以满足视野开阔的要求。此外介绍了塔台的风荷载、地下室及基础、结构分析结果、筒体受拉以及上部钢结构外伸体系,对类似项目有一定参考意义。

Structural design of the new control tower in Wuhan Tianhe International Airport

The new aviation tower of Wuhan Tianhe International Airport is 115 m high, which is the first domestic and the second tallest civil tower in the world. The tower has a novel architectural shape, an asymmetric structure, high height, small cross-section size, and light weight. In the structural design, targeted measures were taken for these architectural features, and an enlarged basement was installed to improve the overall anti-overturning ability of the structure.The concrete cylinder is used to increase the lateral stiffness of the cross section;the upper functional area is a mixed structure of reinforced concrete tube and steel structure, which minimizes the mass eccentricity of the upper functional area and reduces the tension of the lower wall limb. The frame structure with only 4 steel columns is adopt to meet the requirements of wide vision for the top control room. Besides wind load, basement and foundation, structural analysis results, tube tension and upper steel structure extension system were also introduced, which has certain reference significance for similar projects.