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|本期目录/Table of Contents|

断面风压作用下冷却塔塔筒内力影响线研究

《应用力学学报》[ISSN:1000-4939/CN:61-1112/O3]

期数:
2019年02期
页码:
405-410
栏目:
出版日期:
2018-12-18

文章信息/Info

Title:
Influence functions of internal forces of cooling tower shell under section wind pressure
作者:
张军锋杨军辉辛思远朱冰
郑州大学 土木工程学院 450001郑州
Author(s):
Zhang Junfeng Yang Junhui Xin Siyuan Zhu Bing
School of Civil Engineering, Zhengzhou University, 450001, Zhengzhou, China
关键词:
冷却塔风荷载效应断面风压影响线局部效应
分类号:
TU311
DOI:
10.11776/cjam.36.02.B124
文献标识码:
A
摘要:
为深入理解塔筒表面风压与塔筒内力的关系,以某大型双曲冷却塔为例,根据断面风压作用下内力影响线,分析了塔筒的受力特征,尤其是其子午向受力特征和断面风压的局部效应。从子午向轴力FY的影响面可知:在高度方向上,FY受到整个塔筒高度范围荷载的影响,表现出较为明显的空间结构受力特征;但在断面风压作用下,FY将只受其上部荷载的影响,表现出类似悬臂结构的受力特征。另外,不管是单位面荷载还是断面风压,其他内力如子午向弯矩MY、环向轴力FX和环向弯矩MX都表现出显著的局部效应。

参考文献/References

[1] 张军锋,葛耀君.现行规范中双曲壳体冷却塔静风局部稳定公式来源[J].建筑结构,2011,41(3):100-109.(ZHANG Junfeng,GE Yaojun.Origin of specifications about local buckling of hyperboloidal cooling towers in current codes[J].Building structure,2011,41(3):100-109(in Chinese)). [2] 张军锋,朱冰,丁玉玺.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[J].防灾减灾工程学报,2018,38(3):549-555.(ZHANG Junfeng,ZHU Bing,DING Yuxi.Load effects and simplified design procedure of hyperboloidal cooling tower shell:simplification of reinforcement calculation procedure[J].Journal of disaster prevention and mitigation engineering,2018,38(3):549-555(in Chinese)). [3] GOULD P L.The influence of R&D on the design,construction and damage assessment of large cooling towers[C]//Proceedings of 6th International Symposium on Cooling Towers.Cologne,German:[s.n.],2012. [4] 武际可.大型冷却塔结构分析的回顾与展望[J].力学与实践,1996,18(6):1-5.(WU Jike.Review and prospect about structural analysis of cooling towers[J].Mechanics in engineering,1996,18(6):1-5(in Chinese)). [5] 黄志龙.大型冷却塔结构分析的若干问题[J].力学与实践,2012,34(5):1-5.(HUANG Zhilong.Some problems on structural analysis of cooling towers[J].Mechanics in engineering,2012,34(5):1-5(in Chinese)). [6] 赵林,刘晓鹏,高玲,等.大型冷却塔表面脉动风压原型实测与分布准则[J].土木工程学报,2017,50(1):1-11.(ZHAO Lin,LIU Xiaopeng,GAO Ling,et al.Full-scale measurement and distribution rules of surface fluctuating wind pressure of a large cooling tower[J].China civil engineering journal,2017,50(1):1-11(in Chinese)). [7] 朱鹏,柯世堂.大型双曲冷却塔支柱结构选型研究[J].应用力学学报,2016,33(1):116-122.(ZHU Peng,KE Shitang.Study on the pillars model selection of large hyperbolic cooling tower[J].Chinese journal of applied mechanics,2016,33(1):116-122 (in Chinese)). [8] 张军锋,田家安,辛思远,等.冷却塔塔筒内力影响面与风荷载效应分析[J].结构工程师,2018,34(2):95-99.(ZHANG Junfeng,TIAN Jia’an,XIN Siyuan,et al.Influence surface of internal forces and wind effects of hyperbolic cooling tower shell[J].Structural engineers,2018,34(2):95-99(in Chinese)). [9] ZHANG Junfeng,GE Yaojun,ZHAO Lin.Influence of latitude wind pressure distribution on the responses of hyperboloidal cooling tower shell[J].Wind and structures,2013,16(6):579-601. [10] 中华人民共和国住房和城乡建设部.工业循环水冷却设计规范:GB/T50102-2014[S].北京:中国计划出版社,2014.(Ministry of Housing and Urban-Rural Development of the People’s Republic of China.Code for design of cooling for industrial recirculating water:GB/T50102-2014[S].Beijing:China Planning Press,2014(in Chinese)).

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