| 预应力砼桥梁早期病害成因分析及预防措施 |
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| 引用本文： | 周振东,代戈,葛琪.预应力砼桥梁早期病害成因分析及预防措施[J].黑龙江工程学院学报,2013,27(3):33-36. |
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| 作者姓名： | 周振东 代戈 葛琪 |
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| 作者单位： | 1. 中国公路工程咨询集团有限公司,北京,100096
2. 黑龙江工程学院土木工程学院,黑龙江哈尔滨,150050 |
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| 摘 要： | 归纳总结预应力砼桥梁产生早期病害的种类和原因,并以某一试验梁为工程背景,通过建立空间有限元实体模型,分析预应力砼桥梁在腹板处容易出现沿预应力孔道纵向裂缝的原因,并从设计和施工两个角度提出避免早期裂缝的措施。研究结果有助于解决预应力砼桥梁在实际工程中经常出现的早期病害问题。
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| 关 键 词： | 预应力砼桥梁 裂缝 受力性能 有限元分析 |
Study on the reason and prevention method of early stage crack in pre-stress concrete bridge |
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| ZHOU Zhen-dong
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DAI Ge
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GE Qi.Study on the reason and prevention method of early stage crack in pre-stress concrete bridge[J].Journal of Heilongjiang Institute of Technology,2013,27(3):33-36. |
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| Authors: | ZHOU Zhen-dong DAI Ge GE Qi |
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| Affiliation: | 1. China Highway Engineering Consulting Group Co. , Ltd. , Beijing 100096, China; 2. Heilongjiang Institute of Technology, Harbin 150050, China) |
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| Abstract: | The types and reasons of early crack of pre-stress concrete bridge are presented. Based on one test beam, a FEM model is set up, and then the reason of the longitudinal cracks of pre-stressed duct is analyzed. Then the prevention method based on both design and construction is given. The results of the study can provide the reference for solving the early cracks in the practical bridge construction. |
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| Keywords: | pre-stress concrete bridge crack stress performance finite element analysis |
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