| 影响预应力混凝土连续梁桥合龙阶段施工的若干问题分析 |
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| 引用本文： | 朱金涌,郑益龙.影响预应力混凝土连续梁桥合龙阶段施工的若干问题分析[J].平顶山工学院学报,2009,18(3). |
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| 作者姓名： | 朱金涌 郑益龙 |
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| 作者单位： | 兰州交通大学土木工程学院,甘肃兰州,730070 |
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| 摘 要： | 以主跨100m预应力混凝土连续粱桥为例,通过介绍连续梁桥施工控制的原理,分析了温度对中跨合龙施工的影响和利用挂篮进行中跨合龙时挂篮对合龙施工的影响,得出以下结论:1)温度对桥梁合龙影响比较大,应该选择正确的合龙时间.2)利用挂篮进行合龙段的施工,不仅能达到成桥后的线形,同时节约了成本和时间.
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| 关 键 词： | 施工控制 中跨合龙 温度 挂篮 空间有限元 |
Analysis of affecting construction during closing of prestressed concrete continuous girder bridge |
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| ZHU Jin-yong,ZHENG Yi-long.Analysis of affecting construction during closing of prestressed concrete continuous girder bridge[J].Journal of Pingdingshan Institute of Technology,2009,18(3). |
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| Authors: | ZHU Jin-yong ZHENG Yi-long |
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| Affiliation: | ZHU Jin-yong (College of Civil Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China) |
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| Abstract: | This paper gives an introduction of the principle of continuous girder bridge's construction control,analyzes the meaning and effect of mid-span closing during construction control and the effect of temperature to mid-span closing construction,discusses the principle during mid-span closing by hanging basket,and leads to the following conclusion: 1) the effect of temperature to closing is relatively great,and it is supposed to choose correct time.2) It is not only helpful to achieve alignment after the brid... |
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| Keywords: | construction control mid-span closing temperature hanging basket space finite element |
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