大型双曲冷却塔支柱结构选型研究  

Study on the pillars model selection of large hyperbolic cooling tower

作　　者：朱鹏[1] 柯世堂[1] 

机构地区：[1]南京航空航天大学土木工程系,南京210016

出　　处：《应用力学学报》2016年第1期116-122,186,共7页Chinese Journal of Applied Mechanics

基　　金：国家自然科学基金(51208254);江苏省自然科学基金(BK2012390);博士后科学基金(2013M530255;1202006B)

摘　　要：系统地研究了不同支柱类型对冷却塔结构和稳定性能的影响,支柱选型按照等高和等体积的原则,采用矩形和圆形两种不同支柱截面类型,同时考虑X型、人字型、V字型、I型四种支柱类型,分析其对冷却塔结构动力特性、承载性能、稳定性的影响。结果表明:改变支柱截面对冷却塔的整体结构特性影响甚微;改变支柱类型对结构基频、抗风承载能力、稳定性能的影响不能忽略。建议在冷却塔支柱截面设计时可优先选择圆形截面,在支柱类型设计时可优先选择采用人字型支柱。The impact performances on the structure and stability for various pillar types of cooling towers are studied systematically in this paper, the pillars are selected according to the principle of same high and same volume, using two different section types: rectangular and circular pillars section types, and also taking the x-type, Λ-type, V-type and I-type into account. The dynamic characteristics, the bearing performance and stability of the cooling tower structure are studied. The results show that different pillar section types have little influence on the overall structure of cooling tower. The impact of different pillar types on the structure of fundamental frequency, the bearing capacity and the stable performance should not be neglected. When designing cooling tower pillar section, it should be given priority to the circular cross section, priority should be given the Chinese character REN-type when designing pillar type.

关 键 词：大型双曲冷却塔 静风荷载 支柱结构 动力特性 承载性能 稳定性 

分 类 号：TU332[建筑科学—结构工程]