| 双曲拱桥拆除施工稳定性分析 |
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| 引用本文： | 史增朝,赵本栋.双曲拱桥拆除施工稳定性分析[J].现代交通技术,2013(5):43-46. |
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| 作者姓名： | 史增朝 赵本栋 |
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| 作者单位： | 河北省邯郸市交通运输局公路养护管理处;长安大学公路学院 |
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| 摘 要： | 文章采用有限元理论分析双曲拱桥结构的非线性稳定问题,对双曲拱桥各拆除工况用Midas有限元分析软件建立了计算分析模型.计算结果表明：双曲拱桥拆除过程中,单拱拆除时稳定性最差,据此提出施加扣索等工程措施,以确保双曲拱桥拆除施工安全.
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| 关 键 词： | 桥梁工程 双曲拱桥 非线性分析 拆除施工 施工稳定性 |
Stability Analysis of Demolition Construdtion for Double Curved Arch Bridge |
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| Shi Zengchao,Zhao Bendong.Stability Analysis of Demolition Construdtion for Double Curved Arch Bridge[J].Modern Transportation Technology,2013(5):43-46. |
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| Authors: | Shi Zengchao Zhao Bendong |
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| Institution: | 2 Handan City Bureau of Transportation of Hebei Province, Handan 056000, China; 2. School of Highway, Chang＇an University, Xi＇an 710064, China) |
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| Abstract: | Considering the geometric and material nonlinearity comprehensively, the nonlinear structural stability of hyperbolic arch bridge is analyzed using the finite element theory. Using Midas finite element analysis software, the calculation analysis model is established, which imitates the demolition condition of hyperbolic arch bridge. The results of calculation indicate that hyperbolic arch bridge is worst stability when single arch is dismantled. Thus puts forward engineering measures, such as use rigging, to ensure project safety. This article has a guiding significance for the similar demolition engineering. |
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| Keywords: | bridge engineering double curved arch bridge nonlinear analysis demolishing project stability |
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