| 简支转连续梁桥施工程序对结构内力影响分析 |
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| 引用本文： | 高云峰,叶元芬.简支转连续梁桥施工程序对结构内力影响分析[J].重庆交通大学学报(自然科学版),2006,25(Z1):35-37,43. |
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| 作者姓名： | 高云峰 叶元芬 |
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| 作者单位： | 重庆交通大学,重庆,400074 |
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| 摘 要： | 简支转连续梁桥在施工阶段存在体系转换,不同的施工程序会对结构内力产生影响.通过5跨30m箱梁的具体工程实例,针对15种不同的施工程序进行计算分析.分析表明:先浇筑整体化层后浇筑湿接缝或整体化层与湿接缝交替浇筑对结构受力更有利;梁端湿接缝的预应力张拉顺序在施工阶段也会对结构内力产生一定的影响.
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| 关 键 词： | 简支转连续 施工程序 内力分析 张拉顺序 |
| 文章编号： | 1001-716X(2006)S1-0035-03 |
| 修稿时间： | 2006年5月29日 |
Analysis on the influence of orders of construction on the structural internal force in continuous beam bridge erected by many of simply supported beams |
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| GAO Yun-feng,YE Yuan-fen.Analysis on the influence of orders of construction on the structural internal force in continuous beam bridge erected by many of simply supported beams[J].Journal of Chongqing Jiaotong University,2006,25(Z1):35-37,43. |
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| Authors: | GAO Yun-feng YE Yuan-fen |
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| Abstract: | System transformation exists in construction of continuous erection by many of simply supported beams.In the construction stage,structural internal force varies according to various orders of construction.A 5-span 30-mile length box-girder bridge is taken as an example and 15 different kinds of orders of construction are carried out to analyze.It is shown that the sequence of casting monolithic deck first then casting wet joint or the sequence of casting monolithic deck and wet joint alternately is much better to structure.What's more,the internal force can be influenced by tension sequence of tendons at beam end. |
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| Keywords: | continuous erection by many of simply supported beams order of construction internal force analysis tension sequence |
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