超大型双曲线混凝土冷却塔振动台试验研究  

Shaking Table Model Test of a Super Large Hyperbolic Concrete Cooling Tower

作　　者：陈良 张明玉 陈家丰 郝玮[3] 李淼 CHEN Liang;ZHANG Mingyu;CHEN Jiafeng;HAO Wei;LI Miao(North China Power Engineering Co.,Ltd.,China Power Engineering Consulting Group,Beijing 100120,China;Shengli Power Plant of China Shenhua Energy Co.,Ltd.,Xilinhot 026000,China;CABR Technology Co.,Ltd.,Beijing 100013,China)

机构地区：[1]中国电力工程顾问集团华北电力设计院有限公司,北京100120 [2]中国神华胜利发电厂,内蒙古锡林浩特026000 [3]中建研科技股份有限公司,北京100013

出　　处：《电力学报》2024年第1期82-91,共10页Journal of Electric Power

摘　　要：神华胜利发电厂混凝土冷却塔位于7度抗震设防区,塔高225 m,塔筒为双曲线型。这种超大型冷却塔在地震等极端荷载下一旦发生破坏,后果将是灾难性的。目前对冷却塔的研究多以数值模拟为主,试验研究较少。通过设计开展缩尺比为1∶33的地震振动台模型试验,研究冷却塔的结构动力响应特性,分析不同地震烈度下结构的刚度退化和损伤情况,寻找结构的薄弱部位,并综合动力试验和数值模拟结果,评价结构的可靠性,提出合理的抗震措施和结构建议。The concrete cooling tower of Shenhua Shengli Power Plant is located in the 7 degree seismic fortifica⁃tion zone,with a height of 225 m and a hyperbolic cylinder.Once the super large cooling tower is destroyed un⁃der extreme load such as earthquakes,the consequences will be catastrophic.At present,the research on cool⁃ing tower is mainly based on numerical simulation,and the experimental research is few.By designing and car⁃rying out a seismic shaking table model test with a scale ratio of 1∶33,the structural dynamic response character⁃istics of the cooling tower are studied,the stiffness degradation and damage of the structure under different seis⁃mic intensities are analyzed,the weak parts of the structure are found.Considering the results of dynamic test and numerical simulation,the reliability of the structure is evaluated,and reasonable anti-seismic measures and structural suggestions are put forward.

关 键 词：超大型冷却塔 钢筋混凝土 地震选波 振动台试验 数值模拟 

分 类 号：TU352.11[建筑科学—结构工程] TM621[电气工程—电力系统及自动化]