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K型钢管—板节点受力性能与承载力计算方法
程睿, 黄宗明, 王槐福
重庆大学 土木工程学院,重庆 400045
摘要:
钢管—板连接节点是钢管输电塔常用的节点型式,但目前对其受力性能的研究还不够深入,缺乏相应可供工程设计使用的计算分析方法。采用ANSYS程序建立了K型钢管—板连接节点的有限元模型,对Kim所进行的系列节点试验进行了模拟对比分析,验证了有限元模型的合理性;通过变参数分析考查了K型钢管—板节点受力性能和节点破坏模式,研究了几何参数、主管应力比、加劲构造等对节点极限承载力的影响规律。在此基础上,提出了考虑支管约束作用的K型钢管—板连接节点极限承载力的计算方法,并验证了其适用性。
关键词:  钢管—板连接节点  极限承载力  参数分析  计算方法
DOI:10.11835/j.issn.1674-4764.2009.02.001
分类号:
基金项目:国家电网公司 000 kV级交流特高压输变电工程关键技术项目(SGKJ[2007]43)
Parametric Study and Design of the Ultimate Strength of Tube gusset Plate Connections
CHENG Rui, HUANG Zongming, WANG Huaifu
College of Civil Engineering, Chongqing University, Chongqing 400045, P. R. China
Abstract:
The tube gusset plate connections are widely used in electric transmission towers. However, there is little technical information regarding the behavior of tube gusset plate connections. Thus, a analytical parametric study was conducted to investigate the behavior of tube gusset plate connections. The analytical results were compared with the existing experimental results. It was found that the finite element analysis results were in good agreement with the experimental results. In the parametric study, the effects of geometry, chord load and stiffener on the ultimate strength were considered. Based on the analytical results, a design method for predicting the ultimate strength of tube gusset connections was proposed, and its applicability was verified.
Key words:  tube gusset plate connections  ultimate strength  parametric study  calculation method
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