| 预应力混凝土连续箱梁底板锚下裂缝分析 |
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| 引用本文： | 罗旭,李新平. 预应力混凝土连续箱梁底板锚下裂缝分析[J]. 公路交通科技, 2005, 22(12): 94-97 |
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| 作者姓名： | 罗旭 李新平 |
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| 作者单位： | 华南理工大学交通学院,广东,广州,510640 |
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| 摘 要： | 由OVM锚具和楔形齿板组成的锚固体系在我国预应力混凝土连续箱梁中的应用已经非常广泛,但是如果设计和施工过程中考虑不周,巨大的锚下应力将会导致箱梁底板开裂。本文以广东某预应力混凝土连续箱梁齿板前底板开裂为工程背景,对其进行有限元分析计算,并根据计算结果和工程实际情况从理论上分析了开裂的原因。最后,本文还提出裂缝的处理意见和改善设计的具体建议。
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| 关 键 词： | 预应力混凝土 连续箱梁 楔形齿板 裂缝 有限元分析 |
| 文章编号： | 1002-0268(2005)12-0094-04 |
| 收稿时间： | 2004-08-18 |
| 修稿时间： | 2004-08-18 |
Analysis of Bottom Slab Crack under the Anchorage of P.C. Continuous Box Girder |
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| LUO Xu,LI Xin-ping. Analysis of Bottom Slab Crack under the Anchorage of P.C. Continuous Box Girder[J]. Journal of Highway and Transportation Research and Development, 2005, 22(12): 94-97 |
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| Authors: | LUO Xu LI Xin-ping |
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| Affiliation: | College of Traffic and Communications, South China University of Technology, Guangdong Guangzhou 510640, China |
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| Abstract: | OVM prestressed anchorage system is widely used in P.C.continuous box girder in China,comprehensive considerations should be taken into account in the course of design and construction,otherwise the stress under the prestressed anchorage will result in bottom slab crack.Based on this kind of crack in P.C.continuous box girder in Guangdong,with the application of finite element method,this paper analyzes the causes of the crack occurred and presents the treatment measrues to improve the design in detail. |
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| Keywords: | Prestressed concrete Continuous box girder Chisel teeth slab Crack Analysis with finite element method |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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