| 桥面物理除冰雪加热功率与环境因素关系分析 |
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| 引用本文： | 张文学,李茜,杨璐.桥面物理除冰雪加热功率与环境因素关系分析[J].石家庄铁道学院学报,2011(4):19-22. |
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| 作者姓名： | 张文学 李茜 杨璐 |
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| 作者单位： | 北京工业大学建筑工程学院; |
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| 基金项目： | 广东省交通运输厅2008年重点科技项目(2008-01-13) |
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| 摘 要： | 为解决化学融雪剂腐蚀桥梁结构和污染环境的问题，提出桥面敷设加热电缆方式除冰雪技术方案，以30m预应力混凝土T梁桥、沥青混凝土桥面为分析对象，进行了瞬态热分析和稳态热分析，系统研究了在桥面加热升温和稳态融雪节段加热功率与环境温度和环境风速的关系。经分析可知桥面加热过程可分为滞后、升温和稳态三个阶段，得出了一些有意义的结论，可为桥面敷设加热电缆除冰雪设计提供理论参考。
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| 关 键 词： | 电加热 融冰雪 滞后阶段 升温阶段 稳态阶段 |
Analysis of Optimizing Bridge Deck Snowmelt Electric Heating Power |
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| Zhang Wenxue,Li Qian,Yang Lu.Analysis of Optimizing Bridge Deck Snowmelt Electric Heating Power[J].Journal of Shijiazhuang Railway Institute,2011(4):19-22. |
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| Authors: | Zhang Wenxue Li Qian Yang Lu |
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| Institution: | Zhang Wenxue,Li Qian,Yang Lu(College of Architecture and Civil Engineering,Beijing University of Technology,Beijing 100022,China) |
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| Abstract: | To solve the problem of bridge structure eroding and environment pollution that could be caused by chemical snow-melting agents,the snowmelt technology of laying electric heating cable in bridge deck is put forward.Takinge 30 m pre-stressed concrete T shape beam-bridge with asphalt concrete pavement as analysis object,the instantaneous and steady-state thermal analyses are made.The relation of heating power with environmental wind speed and environmental temperature are studied in detail at heating-up phase... |
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| Keywords: | electric heating snowmelt lag phase heating-up phase steady snowmelt state |
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