Abstract：
It was the the ribbon-style steel spatial truss roof that made the truss unit of Chenzhou International Exhibition Center bizarre and large-span as well as high quality demands of truss unit construction required. Consequently, this paper presents the critical construction technology for steel truss roof of Chenzhou International Exhibition Center with emphasis on mechanical cold-bending on construction steel tube, site assembly of truss units, design and construction of assembled bed-jig along with falsework, installation of steel truss in addition with welding and painting of steel truss pipe fittings, practice shows well.
