| 简支变连续梁桥支座更换新方法的试验研究 |
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| 引用本文： | 郭艳芬,张永水,万飞,胡安林.简支变连续梁桥支座更换新方法的试验研究[J].重庆交通大学学报(自然科学版),2009,28(1):16-19. |
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| 作者姓名： | 郭艳芬 张永水 万飞 胡安林 |
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| 作者单位： | 重庆交通大学土木建筑学院,重庆,400074 |
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| 摘 要： | 简支变连续梁桥是高速公路建设中被广泛采用的桥型之一,随着桥梁营运期的增加,必然面临着支座更换问题。针对水麻高速公路上山区高墩简支变连续T型梁桥,通过模型试验提出了纵向单点逐墩,横向同步顶升的支座更换新方法。以顶升过程中梁体受力安全为目标,得出了20 m、30 m、40 m不同跨径T梁桥的支座顶升量限值。试验结果表明采用纵向单点逐墩、横向同步顶升的支座更换方法合理可行,结构安全得到保证,为同类桥型支座更换提供了一种新方法和新途径。
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| 关 键 词： | 简支变连续梁 模型试验 支座更换 纵向单点(逐墩)顶升 顶升量 |
Test Study on the New Method of Bearing Replacement of Simple Support-Continuous Girder Bridge |
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| GUO Yan-fen,ZHANG Yong-shui,WAN Fei,HU An-lin.Test Study on the New Method of Bearing Replacement of Simple Support-Continuous Girder Bridge[J].Journal of Chongqing Jiaotong University,2009,28(1):16-19. |
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| Authors: | GUO Yan-fen ZHANG Yong-shui WAN Fei HU An-lin |
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| Institution: | School of Civil Engineering & Architecture;Chongqing Jiaotong University;Chongqing 400074;China |
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| Abstract: | The simple support-continuous girder bridge is widely used in the highway construction.With the increase of operation period of bridge,the issues of bearing replacement must be faced.Aiming at the case of transforming the high piers bridge with simple support to T continuous girder bridge on the Shuima Highway in the mountainous area,and the new method of bearings replacement is put forward by model test.This method is called longitudinal single-point(followed by pier),lateral synchronous jacking-up.Taking ... |
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| Keywords: | simple support-continuous girder model test bearing replacement longitudinal single-point(followed by pier)jacking-up jacking-up height |
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