Installation Technology of Long-span Steel Frame Corridor
The steel frame corridor from the north exhibition hall to the south exhibition hall of Xiaohe International Convention and Exhibition Center is supported by eight concrete filled steel tubular columns through spherical bearings.The corridor is composed of H-shaped steel truss on both sides,floor H-shaped steel beam,roof H-shaped steel beam and roof support system.According to the low bearing capacity of the ground during the installation period,the high-altitude simplified unit installation and filling technology is adopted.By setting the temporary support frame to form a stable high-altitude simplified unit and unloading,the formed unit structure is used as the force support to supplement the remaining components,so as to reduce the amount of temporary support frame and the tonnage of hoisting machinery,and then reduce the installation cost.
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