| 钢桁-混凝土梁桥体外预应力加固受力分析 |
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| 引用本文： | 田波波.钢桁-混凝土梁桥体外预应力加固受力分析[J].价值工程,2022,41(4):107-109. |
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| 作者姓名： | 田波波 |
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| 作者单位： | 中交一公局西北工程有限公司,西安710000 |
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| 摘 要： | 本文拟对连续钢桁-混凝土组合梁桥进行体外预应力加固的效果进行分析。首先建立有限元模型,并通过此有限元模型分析体外预应力束不同参数及布置形式对加固效果的影响,分析加固前后桥梁的强度、刚度、稳定性。综合以上分析结果来评价体外预应力法的加固效果,以探究该方法在钢桁梁桥进行加固的可行性。
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| 关 键 词： | 有限元模型 验算 加固 |
Stress Analysis of External Prestressed Reinforcement of Steel Truss-concrete Girder Bridge |
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| TIAN Bo-bo.Stress Analysis of External Prestressed Reinforcement of Steel Truss-concrete Girder Bridge[J].Value Engineering,2022,41(4):107-109. |
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| Authors: | TIAN Bo-bo |
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| Institution: | (CCCC FHEC Northwest Engineering Co.,Ltd.,Xi'an 710000,China) |
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| Abstract: | This paper intends to analyze the effect of external prestressing reinforcement of continuous steel truss-concrete composite girder bridges.Firstly,a finite element model is established,and the influence of different parameters and layout forms of external prestressing beams on the reinforcement effect is analyzed through this finite element model,and the strength,stiffness and stability of the bridge before and after reinforcement are analyzed.Based on the above analysis results,the reinforcement effect of the external prestressing method is evaluated to explore the feasibility of this method in the reinforcement of steel truss bridges. |
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| Keywords: | finite element model check calculation reinforcement |
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