| 预应力混凝土连续梁桥主桥合龙施工技术 |
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| 引用本文： | 朱金涌,魏卓冉.预应力混凝土连续梁桥主桥合龙施工技术[J].城市道桥与防洪,2009(9):109-111. |
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| 作者姓名： | 朱金涌 魏卓冉 |
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| 作者单位： | 朱金涌(兰州交通大学土木工程学院,甘肃兰州,730070);魏卓冉(中铁十七局第四工程有限公司,重庆市,404044) |
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| 摘 要： | 该文结合工程实例,以主跨100m预应力混凝土连续梁桥为背景,分析了温度梯度作用下温度变化对中跨合龙施工的影响,以及利用挂篮进行中跨合龙的原理。通过分析和计算,得出了对连续梁桥合龙段施工有一定参考价值的结论。
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| 关 键 词： | 施工控制 中跨合龙 温度 挂篮 空间有限元 |
Closuring Construction Technology of Main Bridge for Prestressed Concrete Continuous Girder Bridge |
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| Zhu Jinyong,Wei Zhuoran.Closuring Construction Technology of Main Bridge for Prestressed Concrete Continuous Girder Bridge[J].Urban Roads Bridges & Flood Control,2009(9):109-111. |
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| Authors: | Zhu Jinyong Wei Zhuoran |
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| Abstract: | Combined with the engineering practice, taking the main span 100-m prestressed concrete continuous girder bridge as the background, the article analyzes the influence of temperature variation on the midspan closuring construction under the action of temperature grades, and the principle to implement the midspan closure by form traveler. Through the analysis and calculation, the article gives the referring value of conclusion for the construction of closuring section of the continuous girder bridge. |
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| Keywords: | construction control midspan closure temperature form traveler span finite element |
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