About the author:

1. Zhejiang Construction Co. , Ltd. of China Construction Eighth Engineering Division, Hangzhou,Zhejiang 311200, China; 2. College of Civil Engineering, Tongji University, Shanghai 200092, China

Abstract:

The ribbed⁃ring string⁃supported spherical reticulated shell structure is composed of radialmain beam, circumferential secondary beam, prestressed cable and compression strut. Its stiffness andstability bearing capacity are superior to those of the ribbed⁃ring spherical reticulated shell structure, andit is widely used in various sports facilities and cultural tourism projects. The symmetrical constructionmethod is proposed, and the finite element model of the structure is established by ANSYS software. Thedisplacement and stress of the structure during the construction process and the forming state arechecked, and the bearing capacity of the special⁃shaped joint of the inner lower ring beam is evaluated.The research shows that the maximum displacement of the structure is less than 4mm and the stress ratioof the component is less than 0 05, which is safe and reliable. Prestressed cable tension can meet theneeds of structural form and architectural requirements. The special⁃shaped joints of the inner lower ringbeam meet the design requirements, and the bearing capacity safety reserve is high. Stiffening ribs are seton both sides of the ear plate of the joint, which can significantly improve its stiffness and bearingcapacity, and inhibit the plastic development range and depth of the joint.