叠合节点贝壳形单层穹顶网壳高空拼装法施工（Laminated joint shell shaped single-layer lattice dome high assembly construction method）.docVIP

叠合节点贝壳形单层穹顶网壳高空拼装法施工（Laminated joint shell shaped single-layer lattice dome high assembly construction method） High altitude assembly method of laminated shell single shell dome reticulated shell The roof of multi-function hall in the exhibition hall of Qingdao Exhibition Center is made up of laminated nodes, shell shaped single-layer dome shell and steel structure system. This kind of roof structure system is rare at home and abroad. The project has made a bold attempt in the design, and set up a set of overlapping nodes, shell type single-layer dome reticulated high-rise construction method. General situation of Engineering Qingdao Exhibition Center Exhibition Hall multi-function hall, the plane shape is long 28.392m positive curved side triangle (Figure 6-8-1). The facade of the building is modeled as a shell shape. The front, rear and back elevations are modeled with an atypical curved roof (Figure 6-8-2). The lowest elevation in front of the roof is 11m, the highest elevation is 21m behind the roof, the height difference is 10m, and the top surface of the roof is 24m. The laminated joint single-layer latticed dome, the surrounding is curved triangle by the reinforced concrete ring beam supporting. The two-way upper and lower steel tube members of the latticed shell are projected orthogonal on the plane and divided into several 1m * 1m square. Two upper and lower steel pole pieces are made of 140 * 6 seamless steel pipe, according to the design level of coordinates, a shell shaped dome shape. The upper and lower steel pipe joints are overlapped and joined with U - shape 50 * 12 steel plates and bolts. Fabrication of reticulated shell members Method for making curved radian of latticed shell steel tube member 1. shell member number: upper steel pipe member press A1, A2, A3, and lower pipe member press Bl, B2, B4......, According to rod design, arrangement sequence number. According to the 2. shell pipe number order design curve, according to the release of all st