| 数值模型对输电铁塔内力和变形的影响分析 |
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| 引用本文： | 陈建稳,袁广林,刘涛,王鑫. 数值模型对输电铁塔内力和变形的影响分析[J]. 山东科技大学学报(自然科学版), 2009, 28(1) |
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| 作者姓名： | 陈建稳 袁广林 刘涛 王鑫 |
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| 作者单位： | 中国矿业大学,建筑工程学院,江苏,徐州,221008;山东新兴建筑规划设计研究院,山东,潍坊,261200 |
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| 摘 要： | 以某典型输电铁塔为背景,采用数值分析方法,进行了梁桁混合模型与刚架模型的建模,并对计算结果进行对比分析,得出两种模型对于输电塔杆件内力和变形的影响规律.研究表明,刚架模型的最大综合位移与梁桁模型相差2%以内,这说明主材和斜材对于塔架整体刚度贡献较大,辅助材对整体刚度贡献较少.同一工况下梁桁混合模型与刚架模型的轴力、应力结果相应之比集中在1 002～1 020区间内,可见梁桁混合模型受力结果稍微大于刚架模型,混合模型结构设计偏于安全.该研究分析为输电铁塔设计模型的计算与选择提供了依据.
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| 关 键 词： | 输电铁塔 内力 变形 梁桁混合模型 刚架模型 |
The Influence Analysis of Numerical Model on Internal Force and Structural Deformation of Power Transmission Tower |
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| CHEN Jian-wen,YUAN Guang-lin,LIU Tao,WANG Xin. The Influence Analysis of Numerical Model on Internal Force and Structural Deformation of Power Transmission Tower[J]. Journal of Shandong Univ of Sci and Technol: Nat Sci, 2009, 28(1) |
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| Authors: | CHEN Jian-wen YUAN Guang-lin LIU Tao WANG Xin |
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| Affiliation: | 1.School of Architecture & Civil Engineering;China University of Mining & Technology;Xuzhou;Jiangsu 221008;China;2.Shandong Xinxing Institute of Architectural Planning & Design;Weifang;Shandong 261200;China |
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| Abstract: | A typical power transmission tower was numerically analyzed.The rigid frame model and mixed model with beam and truss were established.And the influence of two models on the internal force and deformation is obtained from the computing results.The results indicate that the difference of maximal displacement between mixed model and rigid frame model is within 2%.In other words,the stiffness effect of main bars and diagonal bars is greater than that of secondary bars.The research also indicates that the ratio... |
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| Keywords: | power transmission tower internal force deformation mixed model with beam and truss rigid frame model |
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