窄基输电钢管塔主材次应力有限元分析  

Finite Element Analysis on Secondary Stress of Primary Members of Narrow Base Transmission Tubular Tower

作　　者：洪洲澈 HONG Zhou-che(China Shipbuilding NDRI Engineering Co.Ltd.,Shanghai 200000,China)

机构地区：[1]中船第九设计研究院工程有限公司,上海200000

出　　处：《工程建设与设计》2020年第16期15-16,共2页Construction & Design for Engineering

摘　　要：对某窄基钢管直线塔建立梁单元模型和梁-壳单元模型,并比较2种建模方法的异同,考察整塔和塔脚的次应力分布、应力变化情况。结果表明:塔脚节点区域外两者差异不大,但在节点区域内必须建立壳单元模型才能准确反映受力情况。A beam element model and a beam-shell element model are established for a narrow base steel tube column,the differences and similarities of the two modeling methods were compared,and the distribution and variation of the secondary stress of the whole tower and the tower foot were investigated.The results show that there is little difference between the two outside the node area,but the shell element model must be established in the node area to accurately reflect the stress.

关 键 词：窄基塔 有限元 次应力 

分 类 号：TM753[电气工程—电力系统及自动化]