| 成都苏宁广场跨越地铁隧道的巨型预应力转换梁施工 |
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| 引用本文： | 沈伟,高飞,廖云忠,杨宗放,曹勇.成都苏宁广场跨越地铁隧道的巨型预应力转换梁施工[J].建筑技术,2010,41(12):1094-1096. |
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| 作者姓名： | 沈伟 高飞 廖云忠 杨宗放 曹勇 |
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| 作者单位： | [1]南京币民用建筑设计研究院,南京210002 [2]南京东大现代预应力工程有限责任公司,南京210018 [3]四川希望华两建设工程总承包有限公司,成都610071 |
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| 摘 要： | 成都苏宁广场地下室巨型预应力转换梁位于地铁上方,具有高度高、跨度大、对地铁结构顶部承载力影响大的特点。在工程实践中,采用分阶段施工等措施防止地铁结构超负荷。在预应力施工中,将巨型转换梁分两阶段张拉,张拉次数较少,施工较方便。真空辅助灌浆技术也在本工程中得到应用,并取得了成功经验。
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| 关 键 词： | 预应力 转换梁 地铁隧道 真空辅助灌浆 |
CONSTRUCTION OF HUGE PRESTRESSED TRANSFER BEAM CROSSING SUBWAY TUNNEL OF CHENGDU SUNING SQUARE |
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| SHEN Wei,Gao Fei,LIAO Yun-zhong,Yang Zong-fang,Cao Yong.CONSTRUCTION OF HUGE PRESTRESSED TRANSFER BEAM CROSSING SUBWAY TUNNEL OF CHENGDU SUNING SQUARE[J].Architecture Technology,2010,41(12):1094-1096. |
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| Authors: | SHEN Wei Gao Fei LIAO Yun-zhong Yang Zong-fang Cao Yong |
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| Affiliation: | 1.Nanjing Municipal Institute of Civil Architecture Co.,Ltd.,210002,Nanjing,China;2.Nanjing Dong-Da Modern Prestressed Engineering Co., Ltd.,210018,Nanjing, China;3.Sichuan Hope WestChina Construction Engineering Overall Contracting Corp., Ltd.,610071,Chengdu,China) |
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| Abstract: | The huge underground prestressed transfer beam of Chengdu Suning Square is located above a subway and has many characteristics, such as high altitude, wide span and great influence on top bearing capacity of subway structure. In engineering practice, measure of construction by stages is adopted to prevent the subway structure from overload. During prestressing construction, the huge transfer beam is stressed by two stages, because the less stressing times, the more convenient for construction. Vacuum assistant grouting technology is used in this engineering and successful experiences are obtained. |
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| Keywords: | prestressing transfer beam subway tunnel vacuum assistant grouting |
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