Effect of the primary structure on the seismic response of the cable-net façade

Research on Key Technologies for Construction of Steel Canopy Steel Structure in Chengdu Open Air Music Square

“…The main stage of Chengdu Open-air Music Plaza is located in Chengdu City, east of a section of Beixing Avenue, north of the third section of North Third Ring Road, northeast of Phoenix Interchange; the main stage consists of two independent structural units, namely, the crescent-shaped grandstand and the arch-supported double-curved parabolic single-layer cable network [5]; there is an underground passage under the grandstand locally, which is connected to the ground level of the stage under the cable network; the concrete part of the grandstand consists of five floors, and the plane is in the shape of a semicircular ring, with a maximum structural height of 23.95m and a maximum width of 31.70m and a maximum length of 116.30m. The maximum width of the ring is 31.70m, and the maximum length is 116.30m; the upper steel canopy of the grandstand is in the shape of a crescent moon, with grounding at both ends of the canopy and a projected area of 11,331 m², the maximum height of the middle part is 48.85m, the maximum width is 36.50m, and the maximum span is 180.70m, which belongs to the ultra-limit large-span space structure, with a total weight of about 872t; the elevation structural diagram is shown in Fig.…”