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| Numerical simulation of wind load type coefficient of tower of preheater |
| DONG Tianshu, et al |
| College of Civil Engineering, Hefei University of Technology, Hefei 230009, Anhui, China |
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Abstract As a wind-sensitive super-high-rise steel structure, the determination of the wind load factor for the kiln-tail tower of a cement plant is of critical importance in the design. The current “GB 50009—2012” only provides wind load coefficient values for closed tower structures, and the actual open tower structure does not take into account the influence of inter-story equipment, which leads to the use of conservative coefficients in structural design, increasing the amount of steel and structural weight, resulting in a waste of materials. For this reason, this paper carried out numerical simulation of kiln-tail tower under different wind angles through FLUENT software, and verified the accuracy of numerical simulation through the wind tunnel test of existing high-rise buildings, and then compared and analyzed the results of numerical simulation with the traditional specification design and PKPM calculation results. The results show that the numerical simulation can realistically simulate the wind field and accurately analyze the wind pressure characteristics of the kiln-tail pylon structure under real conditions. The wind load coefficients in the code design are conservative and can be reduced in the actual design. The body shape coefficient of the kiln tail tower is significantly affected by the distribution of the equipment between the layers and the height. According to the variation of the average width of the equipment, the whole kiln tail tower can be divided into three zones, and the variation of the body shape coefficient and the height are basically in a linear relationship in each sub-zone. Finally, based on the data fitting, a new value for the wind load coefficient of the kiln tail tower is proposed
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Published: 29 November 2024
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2024, Vol. 0 
