| 预应力钢梁体外索的张力增量分析 |
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| 引用本文： | 贾艳敏,施平,盖秉政. 预应力钢梁体外索的张力增量分析[J]. 力学与实践, 2002, 24(3): 30-32 |
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| 作者姓名： | 贾艳敏 施平 盖秉政 |
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| 作者单位： | 哈尔滨工业大学,哈尔滨,150001 |
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| 摘 要： | 将预应力钢梁看作梁与索的组合结构,充分考虑了二者之间的相互作用．利用变分原理推导出在外荷载作用下,体外索张力增量的计算公式,并通过预应力钢梁模型试验对计算结果进行了验证．
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| 关 键 词： | 钢梁 体外索 张力 增量 |
| 修稿时间： | 2001-04-01 |
TENSION INCREMENT ANALYSIS OF EXTERNAL CABLES IN PRESTRESSED STEEL BEAM |
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| JIA Yanmin SHI Ping GAI BingzhengHarbin Institute Technology Harbin ,China. TENSION INCREMENT ANALYSIS OF EXTERNAL CABLES IN PRESTRESSED STEEL BEAM[J]. Mechanics and Engineering, 2002, 24(3): 30-32 |
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| Authors: | JIA Yanmin SHI Ping GAI BingzhengHarbin Institute Technology Harbin China |
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| Affiliation: | JIA Yanmin SHI Ping GAI BingzhengHarbin Institute Technology Harbin 150001,China |
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| Abstract: | The prestressed steel beam is regardedas a composite system of beam and cables, and theinteraction of the two parts is fully considered. Thevariational method is used to derive the equationsfor calculating the tension increment of external ca-bles under applied loadings. A model test of pre-stressed steel beam is used to verify the calculationresults. |
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| Keywords: | steel beam external cables tension increment |
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