钢管塔法兰套管相贯节点真型试验研究及有限元分析
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摘要
钢管塔法兰套管相贯节点的提出,有效地改善了现有大跨越钢管塔节点连接形式在强度、刚度与施工强度方面的不足。通过对TG180与TG273两种型号的法兰套管相贯节点进行轴拉与轴压工况试验和有限元模拟分析,所得数值分析结果与试验结果吻合良好。通过对比ABAQUS有限元模拟结果与真型节点试验结果,探讨两型号法兰套管相贯节点的破坏机理与极限承载力。
The new joint, which is called as unstiffened sleeve joints with flanges, was obtained to improve the performance of existing long-span steel tube towers in term of strength,stiffness and construction method. The real model tests were conducted under axial compression and axial tension, and finite element method(FEM) was used for the study of unstiffened sleeve joints with flanges(TG180 and TG273), and the FEM results had a good coincidence with the test results. By comparing the results between the test and FEM in ABAQUS, the failure mechanism and ultimate load of TG180 and TG273 were studied, which could provide references for the design and engineering applications of the unstiffened sleeve joints with flanges.
The new joint, which is called as unstiffened sleeve joints with flanges, was obtained to improve the performance of existing long-span steel tube towers in term of strength,stiffness and construction method. The real model tests were conducted under axial compression and axial tension, and finite element method(FEM) was used for the study of unstiffened sleeve joints with flanges(TG180 and TG273), and the FEM results had a good coincidence with the test results. By comparing the results between the test and FEM in ABAQUS, the failure mechanism and ultimate load of TG180 and TG273 were studied, which could provide references for the design and engineering applications of the unstiffened sleeve joints with flanges.
引文
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[5] 白强.特高压钢管输电塔钢管塔节点极限承载力试验研究[D].重庆:重庆大学,2009.
[6] 王伟,陈以一,赵宪忠.钢管节点性能化设计的研究现状与关键问题[J].土木工程学报,2007,40(11):1-8.
[7] 陈继祖,陆化谱.焊接管节点设计承载力公式研究[J].大连工学院学报,1986,25(2):47-52.
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[9] 叶尹.大跨越钢管塔采用复合构件时的节点试验研究[J].电力建设,2007,28(12):39-42.
[10] 陈以一,沈祖炎,詹琛,等.直接汇交节点三重屈服线模型及试验验证[J].土木工程学报,1999,32(6):26-31.
[11] 沃登尼尔 J.钢管截面的结构应用[M].张其林,等,译.上海:同济大学出版社,2002.
[2] 日本铁塔协会.送电用钢管塔制作基准[S].东京:日本铁塔协会,1995.
[3] 刘红军.特高压钢管输电塔插板连接K型节点的受力性能及承载力研究[D].重庆:重庆大学,2010.
[4] 傅俊涛.大跨越钢管塔节点强度理论与试验研究[D].上海:同济大学,2006.
[5] 白强.特高压钢管输电塔钢管塔节点极限承载力试验研究[D].重庆:重庆大学,2009.
[6] 王伟,陈以一,赵宪忠.钢管节点性能化设计的研究现状与关键问题[J].土木工程学报,2007,40(11):1-8.
[7] 陈继祖,陆化谱.焊接管节点设计承载力公式研究[J].大连工学院学报,1986,25(2):47-52.
[8] 吴国强,何国强.钢管塔锻造法兰连接螺栓的受力计算[J].电力建设,2009,30(10):1-5.
[9] 叶尹.大跨越钢管塔采用复合构件时的节点试验研究[J].电力建设,2007,28(12):39-42.
[10] 陈以一,沈祖炎,詹琛,等.直接汇交节点三重屈服线模型及试验验证[J].土木工程学报,1999,32(6):26-31.
[11] 沃登尼尔 J.钢管截面的结构应用[M].张其林,等,译.上海:同济大学出版社,2002.