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为研究在风荷载作用下一体化基站的模块化配重基础的结构性能,利用ANSYS软件建立了一种模块化配重基础的有限元模型,并考察模块化配重基础在不同风向、不同配重形式和不同荷载组合条件下的结构响应。分析表明:对于此类一体化基站,45°风向是配重基础的最不利风向,在此风向条件下,配重基础的最大竖向位移与基础脱开面积均较0°风向大;当基础配重块之间仅采用内螺杆连接时,其配重基础的整体性和刚度较低,导致配重的最大竖向位移与基础脱开面积均较大,此时可通过增加外槽钢连接来提高配重基础的刚度与整体性,从而减小配重的最大竖向位移与基础脱开面积;在荷载基本组合条件下,配重混凝土、槽钢及内螺杆的应力均未达到强度设计值。
In order to study the structural performance of modularized weight base of integrated base station under the action of wind load, a finite element model of modular weight base was established by using ANSYS software. The basis of modularized weight was studied in different wind direction, Structural Response Under Heavy Load and Different Load Combination Conditions. The analysis shows that for such integrated base stations, the 45 ° wind direction is the most adverse wind direction of the counterweight. Under the wind direction conditions, the maximum vertical displacement and the basic disengagement area of the counterweight are larger than the 0 ° wind direction. When the basic When the counterweight is connected with only the inner screw, the overall weight and rigidity of the counterweight are lower, resulting in a larger vertical displacement of the counterweight and a larger base separation area. At this time, the outer channel steel connection can be increased To increase the rigidity and integrity of the basis of the counterweight, so as to reduce the maximum vertical displacement of the counterweight and the basic detachment area. The stress of the counterweight concrete, the channel steel and the internal screw did not reach the strength design under the basic load combination value.