| 大跨度体外索拱形门式刚架设计 |
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| 引用本文： | 刘志才,靳颖,乔建刚,赵传亮.大跨度体外索拱形门式刚架设计[J].中国市政工程,2011(4):26-29. |
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| 作者姓名： | 刘志才 靳颖 乔建刚 赵传亮 |
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| 作者单位： | 天津市市政工程设计研究院,天津,300051 |
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| 摘 要： | 介绍了预应力技术在门式刚架结构中的研究及应用现状。首次提出了一种新型预应力门式刚架形式——带水平拉索的钢箱截面拱形两铰门式刚架,结合背景工程——跨度达91.5 m的天津京津塘高速公路机场收费站新建罩棚,对这种结构体系进行了较系统的分析。重点阐述了整体受力性能及关键部位——水平拉索、机械钢铰、刚架梁柱交接处角隅段的构造及计算方法。背景工程的成功运用表明,这种结构施工难度小、速度快,建成后使用及景观效果良好,可供类似工程参考。
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| 关 键 词： | 收费站罩棚 拱形门式刚架 水平拉索 钢箱截面 机械钢铰 |
A Design of Large-span External Cable Arched Portal Frame |
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| LIU Zhi-cai,JIN Ying,QIAO Jian-gang,ZHAO Chuan-liang.A Design of Large-span External Cable Arched Portal Frame[J].China Municipal Engineering,2011(4):26-29. |
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| Authors: | LIU Zhi-cai JIN Ying QIAO Jian-gang ZHAO Chuan-liang |
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| Affiliation: | LIU Zhi-cai,JIN Ying,QIAO Jian-gang,ZHAO Chuan-liang(Tianjin Municipal Engineering Design & Research Institute,Tianjin 300051,China) |
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| Abstract: | The paper introduces the research and actual application about the prestressed technology used in portal frame.A new type of prestressed portal frame named horizontal stay cable-strut arched portal frame with steel box section is proposed for the first time.Based on the background project,91.5 m large-span airport toll station awning of BTT Expressway,systemic analysis is made on this new structure system.Performance of the overall force,constructions and computational methods of key positions such as horiz... |
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| Keywords: | toll station awning arched portal frame horizontal stay cable steel box section mechanical hinge |
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