| 一种新型预应力钢箱梁桥 |
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| 引用本文： | 倪元增,钱寅泉,贾艳敏,李丽芬.一种新型预应力钢箱梁桥[J].土木工程学报,1998(1). |
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| 作者姓名： | 倪元增 钱寅泉 贾艳敏 李丽芬 |
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| 作者单位： | 东北林业大学
(倪元增，钱寅泉，贾艳敏)，东北林业大学(李丽芬) |
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| 摘 要： | 本文以哈尔滨市一公路桥修复工程为背景,介绍预应力钢箱梁的计算方法.文中所建立的简支索梁的基本概念及其假设和方程,为模型试验和实桥检测所验证.文中还推得张索对梁刚度提高系数,亦称张力参数,并建立其控制式,便于设计应用.
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| 关 键 词： | 桥 预应力钢箱梁桥 刚度提高系数 |
A NEW TYPE OF STEEL BOX GIRDER BRIDGE WITH PRESTRESSED TENDONS |
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| Ni Yuanzeng Qian Yinquan Jia Yanmin Li Lifen.A NEW TYPE OF STEEL BOX GIRDER BRIDGE WITH PRESTRESSED TENDONS[J].China Civil Engineering Journal,1998(1). |
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| Authors: | Ni Yuanzeng Qian Yinquan Jia Yanmin Li Lifen |
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| Affiliation: | Northeast Forestry University |
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| Abstract: | By means of the renovation of a highway bridge in Harbin, this paper introduces a practicalanalysis method for designing steel box girder with prestressed tendons. In which the basic concept, supposition and equations for simply supported box girder with prestressed tendons are developed and verified by model test and measurement on original bridge. The stiffness incremental coefficient of the box girder contributed by prestressed tendons, which is also known as prestress parameter, is established with its controlling formula derived for practical use. |
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| Keywords: | bridge prestressed steel box girder bridge stiffness incremental coefficient |
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