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深圳赛格广场是我国自己设计、自己施工全部采用国产钢材的高层钢结构建筑。该建筑地下4层,地上70层,高度为280m,共有86根钢管混凝土柱。为了克服浇灌混凝土在柱内操作空间小、作业环境差、劳动强度大等不利因素,解决对钢管混凝土芯柱检测难度大等问题,由中建二局深圳南方建筑公司、中国建筑科学研究院建材所、深圳内恒山混凝土有限公司联合研制了高抛光免振捣自密实混凝土。适合于不论大小管径,采用立式高位抛落的浇筑法,一次浇灌成型(不采取任
Shenzhen SEG Plaza is a high-rise steel structure that has been designed by China and is constructed entirely of domestic steel. The building has 4 floors underground, 70 floors above ground and a height of 280m. There are 86 concrete-filled steel tubular columns. In order to overcome the unfavorable factors such as small operating space, poor working environment, and high labor intensity of the concrete poured in the column, it is difficult to solve the problems of large-scale testing of concrete-filled steel core columns, such as construction of the Second Construction Bureau of Shenzhen South Building Company and China Building Research Institute. The institute, Shenzhen Inner Hengshan Concrete Co., Ltd. jointly developed a high-polishing, vibration-free, self-compacting concrete. Suitable for large and small pipe diameters, vertical cast-in-place pouring method, one-shot molding (do not take any