| 大跨波形钢腹板小箱梁顶推施工技术研究 |
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| 引用本文： | 赵雨,;任亮,;张璟,;上官兴. 大跨波形钢腹板小箱梁顶推施工技术研究[J]. 筑路机械与施工机械化, 2014, 0(11): 76-79 |
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| 作者姓名： | 赵雨, 任亮, 张璟, 上官兴 |
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| 作者单位： | [1]湘潭交通建设质量监督站,湖南湘潭411100; [2]华东交通大学土木建筑学院,江西南昌330013; [3]江西省交通设计院,江西南昌330002 |
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| 基金项目： | 江西省教育厅基金资助项目（GJJl4385）;华东交通大学校立课题资助项目（12TM02） |
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| 摘 要： | 针对传统预应力混凝土箱梁顶推施工速度慢、工期长及跨径受限制等问题,引入波形钢腹板和Φ21.8大直径预应力束,设计了大跨波形钢腹板小箱梁,提出了波形钢腹板箱梁预制组拼顶推和临时钢斜撑相结合的施工方案,实现了大跨度梁桥顶推跨径和顶推速度的突破,其成果可供类似的设计和施工参考。
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| 关 键 词： | 波形钢腹板 小箱梁 顶推施工 临时钢斜撑 |
Research on Incremental Launching Technology of Long-span Box Girders with Corrugated Steel Web |
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| Affiliation: | ZHAO Yu , REN Liang , ZHANG Jing, SHANGGUAN Xing (1. Xiangtan Transportation Construction Quality Supervision Station, Xiangtan 411100, Hunan, China 2. School of Civil Engineering and Architecture, East China Jiaotong University, Nanchang 330013, Jiangxi, China 3. Communications Design Research Institute Co. Ltd. of Jiangxi Province, Nanchang 330002, Jiangxi, China) |
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| Abstract: | Considering that incremental launching of traditional prestressed concrete box girders is slow and restrained by the span, corrugated steel web and a Ф21.8 prestressing tendon were introduced and the box girders with corrugated steel web were designed. A construction scheme combining assemb brace was propose long-span girder b and incremental launching of prestressed box girders with temporary steel which achieves a breakthrough of span and speed of incremental launching of ges and provides reference for similar projects. |
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| Keywords: | corrugated steel web small box girder incremental launching temporary steel brace |
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