Abstract：
The connected steel truss of Nanjing Liuhe Financial Building has a span of 32m and a gross weight of nearly 300t. To shorten the construction period and reduce construction cost, integral hydraulic lifting technique was adopted to install the connected steel truss based on the concept of "ground assembly and integral lifting" The steel truss was lifted as a whole upto a certain length, the truss ends were strengthened; variation of truss stress and displacement was analyzed with consideration of the nonsynchronous conditions among lifting points; five synchronization control measures were proposed to solve various lifting difficulties, such as excessive interface load and truss deflection caused by huge gross weight of truss during lifting and nonsynchronous phenomenon among lifting points under manual control. It was proved that integral lifting technique was an ideal method for similar structure construction due to its safe, economic and effective characteristics.
LIU Jia-bin,GUO Zheng-xing,XIA Hu. Construction Technique for Integral Lifting of Wide-Span Connected Steel Truss[J]. Architecture Technology, 2017, 48(2): 126-.
