Membrane structure design for canopy of Dalian Suoyuwan Professional Football Stadium
The canopy membrane structure of Dalian Suoyuwan Professional Football Stadium adopts tensioned membrane structure system.The membrane structure is 1/4 symmetrical along the two symmetry axes of the roof.There are 336 triangular membrane elements between the inner ring and the outer ring of the main membrane.The inclined cables above each membrane are the valley cables,and the roof is equipped with five rings of circumferential membrane arches.The roof covering material is PTFE membrane material,and the inner cantilevered shed area adopts ETFE cushion.According to the wind tunnel test and the numerical simulation report of wind-induced snow drift,the canopy membrane structure was calculated and analyzed.Under the action of the first type of load combination and the second type of load combination,the longitudinal and latitudinal stresses of the canopy membrane structure meet the requirements of the specification,the deformation under the standard combination meets the requirements of the specification,and the structural design indicators meet the requirements of the structural design performance objectives.In addition,the stiffness and bearing capacity of the membrane elements can be effectively improved by setting the membrane surface cable for the elements with larger membrane surface,and the reasonable setting of the secondary arch between the main arches can reduce the membrane bearing area and improve the stiffness and bearing capacity of the membrane elements.
Dalian Suoyuwan Professional Football Stadiumtensioned membrane structurePTFE membrane materialinitial morphological analysislongitudinal and latitudinal stressmembrane surface cablemembrane arch
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