大体积超长混凝土结构冬季无缝施工技术

Winter Seamless Construction Technique of Mass and Over-length Concrete Structure

大体积超长钢筋混凝土结构冬季无缝施工,除了正常的控制结构裂缝外,严寒的冬季环境、极低的自然气温条件构成了大体积混凝土的"内热外冷"、降温速率及内外温差不好控制的施工特点。本文结合聊城人民医院大楼工程,重点介绍大体积超长混凝土结构的冬季无缝施工技术。

For winter seamless construction of mass and over-length concrete structure, besides regular structure crack control, freezing winter condition, extremely low natural temperature forms 'Inner hot, outer cold' character of mass concrete, the temperature decreasing rate and temperature difference between inside and outside are difficult to control. Combined with the case of Liaocheng People's Hospital Building Project, this paper emphasized on winter seamless construction technique of mass and over-length concrete structure.