百万机组冷却三角支撑结构受力性能优化及分析

Optimization and Analysis of Mechanical Performance of Three-unit Cooling Triangle Support Structure

根据1000MW自然通风冷却塔的布置形式,确定了冷却三角支撑结构(框架和柱腿)的荷载工况并输入到计算模型中,应用STAAD软件计算出各工况下杆件的内力,从而得到最不利的组合工况,并对300MW机组三角框架支撑结构的杆件受力性能进行了校核和优化,确定了百万机组冷却三角的典型结构形式,以便在工程中选择使用。

According to the arrangement of 1000MW natural ventilation cooling tower, the load conditions of the cooling triangular support structure （frame and column leg） are determined and input into the calculation model. STAAD software is used to calculate the internal force of the bar under various working conditions, and the most unfavorable combination condition is obtained. The mechanical performance of the triangular frame support structure of the 300 MW unit is evaluated and optimized. The typical structure of the cooling triangle of the unit is determined so as to be used in the project.