| 天津津塔超高层钢管柱混凝土顶升浇筑技术 |
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| 引用本文： | 高华杰,杨耀辉,焦国强,史春芳.天津津塔超高层钢管柱混凝土顶升浇筑技术[J].施工技术,2010,39(5). |
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| 作者姓名： | 高华杰 杨耀辉 焦国强 史春芳 |
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| 作者单位： | 中建一局集团建设发展有限公司,北京,100102 |
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| 摘 要： | 天津津塔工程采用带纯钢板剪力墙的钢管组合柱结构体系,为保证混凝土质量,采用顶升混凝土浇筑法.针对津塔工程混凝土强度高、黏度大、泵送距离长、坍落度损失大等特点,提出了控制混凝土水胶比、掺加适量膨胀剂等技术措施.另外详细介绍了顶升口设置、钢管柱预留孔设置、混凝土泵送、钢管柱内混凝土密实性和强度检验等.指出钢管混凝土施工过程中,应重视泵管检查、泵送压力观察、防雨雪及防冻.
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| 关 键 词： | 天津津塔 钢管柱混凝土 顶升浇筑 施工技术 |
Lift-up Pouring Technology for Super High-rise Concrete-filled Steel Tubular Column in Tianjin Jinta Mansion |
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| Gao Huajie,Yang Yaohui,Jiao Guoqiang,Shi Chunfang.Lift-up Pouring Technology for Super High-rise Concrete-filled Steel Tubular Column in Tianjin Jinta Mansion[J].Construction Technology,2010,39(5). |
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| Authors: | Gao Huajie Yang Yaohui Jiao Guoqiang Shi Chunfang |
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| Affiliation: | Gao Huajie,Yang Yaohui,Jiao Guoqiang,Shi Chunfang (China Construction First Division Group Construction & Development Co.,Ltd.,Beijing 100102,China) |
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| Abstract: | Tianjin Jinta Mansion is designed to apply composite steel tubular column structure with pure steel slab shear wall. In order to assure concrete quality,lift-up pouring technology is adopted. According to the characteristics of high strength,large viscosity,long pumping distance,high loss of slump,some technology measures are put forward,such as controlling water-binder ratio of concrete,adding proper expansive agent. Furthermore,the lift-up holes setting,reservation holes setting for steel tubular column,c... |
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| Keywords: | Tianjin Jinta Mansion concrete-filled steel tubular column lift-up pouring construction technology |
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