Analysis For Temperature Action And Wind Load Effect On A Large Storage Bunker Of Cylinder Reticulated Shell

As the spatial structures get a larger span and longitudinal length and the bad weather increase, temperature effects and wind load become the focus once again.Cylinder reticulated shell get a large span and Longitudinal length, even if insignificant stress can not be taken no notice. The elastic stiffness in bearings of cylinder reticulated shell is proportional to the temperature stress. The greater elastic stiffness in bearings, the more temperature stress takes place; therefore, the temperature stress in the region of bearings can not be ignored.Wind load is the most important load in many large-span structures design. Wind tunnel text is a reliable means to study the impact of wind loads on building. But the wind tunnel test procedure is complex, costly and longer-period, thus using the numerical simulation methods by computer is efficient to see the impact of wind loads on buildings, reducing the design cycle of the building.Temperature effects on the impact of large-span structures bearings and distribution of wind load shape coefficient is the important research topic in the field, this paper has completed research work and results:1. Make a model for the 95mx184mx36m size of cylinder reticulated shell, use common structural and design software SAP2000 to analyze the model structure. The calculation of the single Load and load combinations check the safety indicators and economic indicators of the structure.2. Check the location temperature range of coal storage bunker. Calculated the cylinder reticulated shell by SAP2000 from the range of 50℃to-45℃uniform temperature field, get the response of the upper structure. Determine a reasonable layout of elastic bearings and the elastic stiffness of the bearing.3. Based on the theory of computational fluid dynamics, Numerical wind tunnel text has been simulated by the large commercial CFD software package FLUENT. By analyzing the simulation results, the distribution rule of wind pressure coefficients on cylinder reticulated shell was got under the circumstance of the large span and portrait.90°wind direction by comparing the impact on the structure of the other wind direction was significantly higher. With the surface division of the Cylinder reticulated shell, reached the regional value of shape coefficient of wind, provide a reference for future similar projects. In the use process of built coal storage bunker, the height and length of coal heap have no impact on wind pressure coefficients of cylinder reticulated shell.