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北京长城饭店工程为现浇钢筋混凝土框架结构。其高层部分柱断面为450×450,600×600(毫米),电梯井壁厚200、300、450(毫米),屋顶女儿墙厚200毫米,梁断面300×600、600×800、600×1500(毫米),楼板厚分120和160毫米两种。柱、墙、梁为小钢模现场拼装,混凝土楼板使用1.8厘米厚胶合板,“飞模”架支托。六层以上所有柱、梁、墙、板全部使用250号大流动性混凝土(掺减水剂),由现场集中搅拌,敞口小翻斗车水平运输,塔吊垂直提升吊斗灌注。一、冬施技术措施根据本工程工期合同紧,冬施结构而大,施工高度高(16～22层相对标高为58.5～83米)的特点,考虑能源耗用、原有热源等条件,冬施期间采用以下技术措施:
The Beijing Great Wall Hotel project is a cast-in-site reinforced concrete frame structure. The upper part of the column section is 450×450,600×600 (mm), the shaft wall thickness is 200, 300, 450 (mm), the roof of the parapet is 200 mm thick, and the beam section is 300×600, 600×800, 600×1500 (mm ), floor thickness 120 and 160 mm two. Columns, walls, and beams are assembled at the site of small steel molds. Concrete slabs are made of 1.8-cm-thick plywood, and “fly molds” are supported. For all columns, beams, walls, and slabs above six floors, No.250 large-fluidity concrete (mixed with water-reducing agent) is used. The site is intensively agitated and horizontally transported by an open dump truck. The tower crane vertically lifts the bucket. First, winter planting technology measures According to the characteristics of energy consumption, original heat source and other conditions, the winter contracting project has a tight schedule, a large winter construction, and a high construction height (a relative elevation of 16 to 22 floors is 58.5 to 83 meters). During the period of application, the following technical measures are adopted: