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中文摘要：
对超大型排烟冷却塔进行风荷载、重力和烟道临时施工荷载组合工况下的数值分析。研究发现：风载作用下开孔与否对塔筒喉部峰值应力影响较小，但对应力集中现象有较大影响，开孔边缘的应力峰值增幅较大；孔洞边缘的局部稳定性安全因子远低于未开孔下的数值，开孔附近塔筒局部稳定性为排烟冷却塔的结构设计控制因素；针对该问题提出了增加局部壁厚和增设封闭肋梁两种加固方案，并综合比较了两种方案的加固效果。
英文摘要：
The strength and stability analysis of super large cooling tower with gas flue are calculated by finite element method. The research shows that stress concentration nearby the open hole is very distinct, and the safe factor of stability near holes is much less than the value without holes; Local stability of tower in the area of holes controls the design of such kind of cooling towers. The corresponding reinforcement schemes for cooling tower with gas flue are proposed lastly, and reinforcement effect of each scheme is compared for selecting the better one.
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