| 预应力混凝土T梁的预制过程控制 |
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| 引用本文： | 安春英.预应力混凝土T梁的预制过程控制[J].森林工程,2011,27(2):56-60. |
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| 作者姓名： | 安春英 |
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| 作者单位： | 内蒙古自治区呼伦贝尔市公路工程质量监督站,内蒙古,呼伦贝尔,021008 |
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| 摘 要： | 预应力钢筋混凝土T梁,因其跨度大、自重轻、结构简单、安装方便等优点,目前在国内高等级公路建设中被广泛采用。普通装配式钢筋混凝土简支桥梁,不但材料消耗多、且自重大,主粱片在自重和其它荷载作用下极易出现裂缝,影响桥梁结构的安全。因此,在桥梁跨度大于20 m,特别是跨度大于30m以上时往往采用预应力混凝土结构,即预应力混凝土T简支梁施工。根据在国道301线扎莱木德大桥梁场工程实例,从预制梁场的选址、施工现场场地硬化、制梁底座浇注、钢筋骨架加固安装、模板设计制作,到波纹管安装、混凝土浇筑、钢绞线的加工安装、张拉注浆、养生等,经过施工中不断的探索,详细阐述预应力混凝土T梁的预制过程施工技术。
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| 关 键 词： | 预应力 混凝土 T形梁 预制 张拉 |
Pre-process Control of Prestressed Concrete T-beam |
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| An Chunying.Pre-process Control of Prestressed Concrete T-beam[J].Forest Engineering,2011,27(2):56-60. |
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| Authors: | An Chunying |
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| Institution: | An Chunying(Highway Engineering Quality Supervision Station in Hulunbuir City of Inner Mongolia,Hulunbuir,Inner Mongolia 021008) |
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| Abstract: | Prestressed concrete T-beam is widely used in domestic first-class highway construction because of its characteristics such as large span,light weight,simple structure and easy installation.While ordinary simply supported bridge with fabricated reinforced concrete threatens the safety of the bridge not only due to its material consumption,but also because its major beam pieces crack easily under the combined effect of its heavy weight and other loads.Therefore,when the bridge span is above 20m,especially wh... |
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| Keywords: | prestressed concrete T-beam prefabricated tension |
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