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预应力钢梁体外索的张力增量分析
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.
作者姓名:贾艳敏  施平  盖秉政
作者单位:哈尔滨工业大学,哈尔滨,150001
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.

关 键 词:钢梁  体外索  张力  增量
修稿时间:2001年4月1日

TENSION INCREMENT ANALYSIS OF EXTERNAL CABLES IN PRESTRESSED STEEL BEAM
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.
Authors:JIA Yanmin SHI Ping GAI BingzhengHarbin Institute Technology Harbin  China
Institution:JIA Yanmin SHI Ping GAI BingzhengHarbin Institute Technology Harbin 150001,China
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.
Keywords:steel beam  external cables  tension  increment
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