| 海控国际广场基础底板大体积混凝土施工技术 |
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| 引用本文： | 武科,鄢长,王冬冬,于晓野. 海控国际广场基础底板大体积混凝土施工技术[J]. 施工技术, 2011, 40(24) |
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| 作者姓名： | 武科 鄢长 王冬冬 于晓野 |
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| 作者单位： | 中国建筑第六工程局有限公司华东分公司,江苏南京,210016 |
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| 基金项目： | 中国建筑工程总公司科研项目(CSCEC-2011-Z-38) |
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| 摘 要： | 结合海控国际广场A座底板基础大体积混凝土的施工情况,分析了该工程大体积混凝土浇筑的特点、难点。介绍了大体积混凝土施工准备,包括钢管混凝土预埋段、措施筋设置、新老楼底板接触面处理、冷水管、测温导线设置等。从原材料配合比、全过程温度控制、施工措施等方面阐述了大体积混凝土裂缝控制关键技术,重点突出了单循环冷水降温后温水覆面养护、面层挤压青石、增加抗裂钢筋网等内容。通过以上措施,大体积混凝土裂缝得到有效控制,达到了预期效果,确保了工程质量。
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| 关 键 词： | 高层建筑 混凝土 基础底板 大体积混凝土 温度控制 配合比优化 补偿收缩 |
Construction Technology for Mass Concrete of Foundation Slab in HNA International Mansion |
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| Wu Ke,Yan Chang,Wang Dongdong,Yu Xiaoye. Construction Technology for Mass Concrete of Foundation Slab in HNA International Mansion[J]. Construction Technology, 2011, 40(24) |
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| Authors: | Wu Ke Yan Chang Wang Dongdong Yu Xiaoye |
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| Affiliation: | Wu Ke,Yan Chang,Wang Dongdong,Yu Xiaoye(Huadong Branch of China Construction Sixth Engineering Bureau Co.,Ltd.,Nanjing,Jiangsu 210016,China) |
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| Abstract: | Based on construction of foundation slab in HNA International Mansion,the characteristics and difficulties of mass concrete are analyzed.Then the construction preparation are introduced such as embedded segment of steel tube concrete column,extra rebar arrangement,treatment at new and old concrete interface,cooling pipes layout and hygrosensor setting.The key control measures against concrete cracks are put forward from concrete mix proportion,temperature control and construction measures.The focal points a... |
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| Keywords: | tall buildings concrete foundation slab mass concrete temperature control mix proportion optimization shrinkage-compensating |
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