钢管混凝土风电塔架K型焊接管板节点参数研究  

Finte Elemnt Analysis of Mechanical Behavior Research on K-Type Welded Tube-Gusset Joints in Lattice CFST Wind Turbine Tower

作　　者：李斌 程亚超 牛丽华 LI Bin;CHENG Yachao;NIU Lihua(School of Civil Engineering,Inner Mongolia University of Science and Technology,Baotou 014010,China)

机构地区：[1]内蒙古科技大学土木工程学院,内蒙古包头014010

出　　处：《重庆理工大学学报（自然科学）》2020年第3期179-184,共6页Journal of Chongqing University of Technology：Natural Science

基　　金：国家自然科学基金项目(51368042);内蒙古自然科学基金项目(2018MS05041)。

摘　　要：为了掌握管板节点的力学性能与破坏模式,设计4个钢管混凝土格构式管板节点进行试验研究,并取1个空钢管节点试验作为对比参照。为了量化参数的变化对节点极限承载力的影响,结合有限元软件对节点参数进行拓展研究。通过变化塔柱径厚比、腹杆与塔柱管径比、壁厚比以及节点板厚度等参数,分析了节点的破坏模式和承载能力。研究结果表明:混凝土的填充可以提高塔柱径向刚度和抗折侧向荷载的能力。In order to grasp the mechanical properties and failure modes of tube-gusset joints,four concrete-filled steel tube lattice tube-gusset joints were designed for experimental research,and an empty steel tube joint test was taken as a comparative reference.In order to quantify the influence of the parameter change on the ultimate bearing capacity of the joint,this paper combines the finite element software to conduct an extended research on the joint parameters.By changing the parameters such as the diameter ratio of the tower column,the diameter ratio of the web to the tower column,the wall thickness ratio and the thickness of the gusset plate,the failure mode and bearing capacity of the joint were analyzed.The research results show that the filling of concrete can improve the radial stiffness and the ability of the tower to resist the lateral load.It is recommended thatωbe 1.3.

关 键 词：风电塔架 有限元 管板节点 破坏形态 

分 类 号：TU398[建筑科学—结构工程]