[1]高春彦,杨卫平,李 斌,等.风力发电机塔架K型相贯节点静力性能试验研究[J].西安建筑科技大学学报:自然科学版,2014,46(05):671-675.[doi:10.15986/j.1006-7930.2004.05.009]
　GAO Chunyan,YANG Weiping,LI Bin,et al.Experiment study on the static behavior of the welded tubularK-joints in wind turbine tower[J].J.Xi’an Univ. of Arch. & Tech.:Natural Science Edition,2014,46(05):671-675.[doi:10.15986/j.1006-7930.2004.05.009]
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风力发电机塔架K型相贯节点静力性能试验研究()
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西安建筑科技大学学报:自然科学版[ISSN:1006-7930/CN:61-1295/TU]

卷:
46
期数:
2014年05期
页码:
671-675
栏目:
出版日期:
2014-10-31

文章信息/Info

Title:
Experiment study on the static behavior of the welded tubular
K-joints in wind turbine tower
文章编号:
1006-7930(2014)05-0671-05
作者:
高春彦1; 2; 杨卫平2; 李 斌2; 史治宇1
（1.南京航空航天大学航空宇航学院，江苏 南京 210016；2.内蒙古科技大学建筑与土木工程学院，内蒙古 包头 014010）
Author(s):
GAO Chunyan 1; 2 ;  YANG Weiping2;  LI Bin 2;  SHI Zhiyu 1
(1.College of Aerospace Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China;
2. Architecture and Civil Engineering Institute, Inner Mongolia University of Science and Technology, Baotou 014010, China)
关键词:
风力发电机塔架; 相贯节点; 静力性能; 破坏模式
Keywords:
wind turbine tower;  tubular joints;  static behavior;  failure mode
分类号:
TU398.9
DOI:
10.15986/j.1006-7930.2004.05.009
文献标志码:
A
摘要:
对4 个钢管混凝土风力发电机塔架K 型相贯节点进行了单调静力加载试验，同时进行了1 个钢管K 型相贯节点的对
比试验．研究了这两种相贯节点的破坏机理和破坏特征、节点进入塑性后的变形发展过程以及相贯线附近的复杂应力状态和
分布规律．试验结果表明：由于混凝土的存在，钢管混凝土相贯节点的失效模式与空钢管相贯节点完全不同，钢管混凝土节
点发生了受压腹杆的局部屈曲和整体弯曲，塔柱管壁没有明显塑性变形；而空钢管节点的失效模式为塔柱钢管表面塑性失
效．两种节点在相贯线附近的应力分布也不相同，钢管混凝土相贯节点在受拉腹杆接头处鞍点位置的应力最为集中，远超过
钢材的屈服强度，其他测点处仍处于弹性受力阶段；空钢管相贯节点在相贯线附近的测点均屈服，应力峰值在冠点附近．本
次试验结论可为钢管混凝土K形焊接相贯节点的设计提供参考．
Abstract:
Four concrete-filled steel tubular(CFST) welded K-joints in wind turbine tower were carried out on the monotonous static
load experiment. At the same time the contrast test on a hollow steel tubular welded K-joints was carried out. The failure mechanism
and failure characteristics, deformation development process after entering the plasticity stage, the complex stress state and
distribution laws near the intersecting line of the two tower joints were all studied. Experimental results show that due to the
existence of the concrete, the failure mode of the CFST welded joints was completely different from the hollow steel tubular joint,
and happened the local buckling and overall bending of compression web members took place with the CFST welded joints. At the
end of the test tower column walls no obvious plastic deformation appeared; while the failure mode of hollow steel tubular joint was
the plastic failure of the tower column wall. The stress distribution near the intersecting line of the two tower joints were also
different, with the stresses of the CFST welded joints mainly concentrating at the saddle points at the tensile web layup, which were
far more than the yield strength of steel, while the other points were still in the elastic stress stage. The measuring points near the
intersecting line of hollow steel tubular joints yielded and the stress peak was near the coronal points. The test results can provide
reference for design of CFST welded K- joints.

参考文献/References:

参考文献 References
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备注/Memo

备注/Memo:
收稿日期：2014-04-08 修改稿日期：2014-10-08
基金项目：国家自然科学基金项目（11172131）；内蒙古自然科学基金项目（2012MS0711）
作者简介：高春彦（1978-），女，副教授，博士生，主要从事土木工程，组合结构与结构抗震方面的研究．Email: gao-197844@163.com
更新日期/Last Update: 2015-10-10