地下装配式组合群罐罐壁稳定性数值分析  

Numerical Analysis of Wall Stability of Underground Prefabricated Group Tank

作　　者：张昊[1] 翟羽佳 谌磊 ZHANG Hao;ZHAI Yujia;CHEN Lei(School of Civil Engineering,Henan University of Technology,Zhengzhou 450001,China)

机构地区：[1]河南工业大学土木工程学院,郑州450001

出　　处：《安阳工学院学报》2025年第2期100-105,共6页Journal of Anyang Institute of Technology

基　　金：河南省科技攻关项目(242102110130)。

摘　　要：为研究地下装配式组合群罐罐壁稳定性,采用有限元分析的方法,分析了不同参数下装配式组合群罐罐壁的临界屈曲荷载。结果表明:地下装配式组合群罐的一阶屈曲模态,呈“波峰状”整体屈曲;根据参数敏感性分析可知,混凝土强度、内防水钢板厚度、内衬钢板厚度、半径和混凝土厚度对临界屈曲荷载回归得到的标准化系数(Beta)值分别为0.135、0.009、0.244、-0.658、0.680,表明增加混凝土厚度和减小半径能够提高组合群罐罐壁的临界屈曲荷载;提出了地下装配式组合群罐罐壁的临界屈曲荷载计算公式,可为地下装配式组合群罐罐壁的稳定性验算提供参考依据。To investigate the stability of the wall of the prefabricated combined underground group tank(PCCUGT),finite element analysis was employed to analyze the critical buckling load of the PCCUGT wall under different parameters.The results show that the first-order buckling mode of the PCCUGT presents a global buckling in the form of a"sinusoidal waveform".According to the parameter sensitivity analysis,the regression coefficients of the concrete strength,the thickness of the internal waterproof steel plate,the thickness of the inner lining steel plate,the radius and the thickness of the concrete to the critical buckling load are 0.135,0.009,0.244,-0.658 and 0.68 respectively.It is demonstrated that increasing the concrete thickness and reducing the radius can enhance the critical buckling load of the combined tank wall.A formula for the critical buckling load of the PCCUGT wall was derived,providing a reference for the stability check of the PCCUGT wall.

关 键 词：组合圆筒壳 稳定性分析 地下群罐 装配式组合结构 

分 类 号：TU501[建筑科学—建筑技术科学]