| 预应力砼平面曲线箱梁腹板裂缝问题的探讨 |
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| 引用本文： | 陈波,周志祥,刘基正.预应力砼平面曲线箱梁腹板裂缝问题的探讨[J].重庆交通大学学报(自然科学版),2007,26(2):1-4,13. |
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| 作者姓名： | 陈波 周志祥 刘基正 |
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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： | 分析了预应力砼平面曲线箱梁腹板产生裂缝的原因,导出了在预应力管道发生位置偏差时径向力的修正计算公式和曲线箱梁腹板厚度的验算公式,讨论了防止曲线箱梁腹板裂缝的措施,可供平面曲线箱梁的设计及施工参考.
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| 关 键 词： | 曲线箱梁桥 腹板裂缝 径向力 位置偏差 |
| 文章编号： | 1001-716X(2007)02-0001-04 |
| 修稿时间： | 2006年2月28日 |
Inquiry into Cracks in the Webs of Curved Prestressed Concrete Box Girders |
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| CHEN Bo,ZHOU Zhi-xiang,LIU Ji-zheng.Inquiry into Cracks in the Webs of Curved Prestressed Concrete Box Girders[J].Journal of Chongqing Jiaotong University,2007,26(2):1-4,13. |
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| Authors: | CHEN Bo ZHOU Zhi-xiang LIU Ji-zheng |
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| Abstract: | Based on the analyses of the reasons for the cracks produced in the webs of curved prestressed concrete box girders,a modified formula is deduced for calculating the radial forces produced from the deviation of the location of prestressing tendons,the further formula is presented for checking the thickness of the webs and the other measures to avoid cracking in the webs are also discussed,which may be reference for the design and construction of such kind of bridge. |
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| Keywords: | curved box girder crack radial force location deviation |
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