冷却塔塔筒荷载效应和简化设计方法——配筋计算流程的简化  

Load Effects and Simplified Design Procedure Hyperbolic Cooling Tower Shell——Simplification of Reinforcement Calculation Procedure

作　　者：张军锋[1] 朱冰 丁玉玺 ZHANG Junfeng;ZHU Bing;DING Yuxi(School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China;Henan Electric Power Survey ＆ Design Institute,Zhengzhou 450007,China)

机构地区：[1]郑州大学土木工程学院,河南郑州450001 [2]河南省电力勘测设计院,河南郑州450007

出　　处：《防灾减灾工程学报》2018年第3期548-554,共7页Journal of Disaster Prevention and Mitigation Engineering

基　　金：国家自然科学基金项目(51508523);博士后科学基金项目(2014M2016)资助

摘　　要：为简化冷却塔塔筒配筋设计中的多风向计算问题,以某冷却塔为例,通过分析各荷载单独作用下的内力状态,包括各自的控制性内力、内力环向分布特征等,对各荷载尤其是风荷载的内力状态进行简化,并根据冷却塔塔筒的旋转轴对称设计原则,从而提出了一种配筋计算的简化方法。与常规方法相比,简化方法所得配筋量仅略有增加,但不仅避免了多风向的组合计算,还无需对整个环向进行配筋计算,在一个确定高度位置只需取一组内力进行配筋计算即可,大大降低了计算工作量。Studies were initiated for a simplified design procedure for ultimate limit state of hyperbolic cooling tower（HCT）shell,which considersvarious wind directions at present.The internal forces due to each load,especially the wind load,are simplified based on the analysis of internal forces under every single load of a HCT,including their dominating internal forces and their latitude distributions.Then a simplified reinforcement calculation procedure is proposed on the basis of axisymmetrical design principle.Compared with the conventional method,this simplified one can not only avoid the combination calculation of load directions,but also avoid reinforcement calculation in the whole latitude.For a certain height,just one group of internal forces is needed for the final reinforcement calculation.So,the computational effort is greatly reduced with just slight increase of reinforcements.

关 键 词：双曲冷却塔 荷载效应组合 简化设计方法 荷载方向 内力环向分布特征 

分 类 号：TU332[建筑科学—结构工程] TU311