Study on the distribution law and influencing factors of indoor and outdoor inhomogeneous temperature field in large-span spatial structure

The effect of temperature is very important in the design and construction of large-span spatial structures. Due to the influence of solar radiation, thermal properties of materials and environmental factors, the temperature field of structural surface is generally non-uniform. At the same time, because of the change of indoor ventilation conditions, the distribution of indoor temperature field also has a certain non-uniformity. When the two kinds of inhomogeneous temperature act together on the structure, the force and deformation of the structure will be greatly affected, and the safety of the structure will be threatened. In this paper, based on Phoenics software and taking Shenzhen Bay Stadium as the background, a simulation method of indoor and outdoor inhomogeneous temperature field considering material properties, solar radiation and environmental factors is proposed, and the influence law of solar radiation ambient temperature and wind speed on the structure of indoor and outdoor inhomogeneous temperature field are summarized. The simulation method proposed in this paper provides a theoretical basis for the study of indoor and outdoor temperature distribution of complex long-span structures in service.