| 高墩多跨连续刚构桥合龙顶推力计算方法探索 |
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| 引用本文： | 王彬.高墩多跨连续刚构桥合龙顶推力计算方法探索[J].山西交通科技,2013(2):57-60. |
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| 作者姓名： | 王彬 |
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| 作者单位： | 山西省交通科学研究院,山西太原030006 |
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| 摘 要： | 预应力混凝土连续刚构桥受力合理,施工便捷,造价经济,行车舒适等优点逐渐向高墩、多跨大跨径方向发展。但由于成桥后的混凝土收缩、徐变及温度变化对其主梁和桥墩的变形将产生较大的影响。以某连续刚构桥为工程背景,充分考虑合龙方案和顶推力大小为主要因素,对高墩多跨连续刚构桥合龙顶推力计算方法进行了研究,探索了合龙顶推力的简化计算公式。研究结果表明:不同的合龙方案决定顶推力的大小及顶推效果,合理的合龙方案及顶推力大小有利于改善主梁及桥墩的变形。
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| 关 键 词： | 高墩 多跨 连续 刚构桥 合龙 方案 顶推力 变形 |
The Study on Calculation Method of Closure Jacking Force for High-pier,Multi-span and Continuous Rigid Frame Bridge |
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| WANG Bin.The Study on Calculation Method of Closure Jacking Force for High-pier,Multi-span and Continuous Rigid Frame Bridge[J].Shanxi Science & Technology of Communications,2013(2):57-60. |
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| Authors: | WANG Bin |
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| Institution: | WANG Bin (Shanxi Transportation Research Institute, Taiyuan, Shanxi 030006, China) |
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| Abstract: | Based on the engineering background of a continuous rigid frame bridge,the closure scheme and the jacking force size as the main factor,this paper studied the calculation method of closure jacking force for high-pier, multi-span and continuous rigid frame bridge. It also explored the simplified calculation formula of closure jacking force to improve the deformation of the main beam and piers. |
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| Keywords: | high-pier multi-span continuous rigid frame bridge closure scheme jacking force deformation |
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