天津117大厦环带桁架施工技术

Truss Construction Technology at Top of Tianjin 117 Building

随着超高层建筑高度的不断攀升,巨型结构的应用逐渐增多。环带桁架作为超高层外框架体系的主要受力构件,其也朝着体量更大、截面更大、跨度更长的方向发展。由此带来的构件分段、构件吊装、构件焊接、变形控制等难题凸显,因此对于巨型环带桁架的施工研究显得格外重要。

With the increasing of the height of the super high-rise buildings,the application of the mega structure is increasing. As the main force component of the super frame frame,the belt truss is developing towards the direction of larger volume,larger section and longer span. The problems of how to carry on the component segmentation,the component hoisting,the component welding,the deformation control and so on are highlighted.