大体积钢筋混凝土结构温度裂缝的防治

Preventive measures of Temperature Cracks in Mass Reinforced Concrete Structure

大体积钢筋混凝土结构温度裂缝的开始、发展和贯通过程具有长期性、复杂性和随机性等特点,温度裂缝的防治在建筑工程领域是个难题。采取措施减少混凝土浇筑体微裂纹、降低浇筑体的入模温度、加强温度观测、保温保湿养护等方法被证明是某剪力墙结构住宅楼基础——大体积钢筋混凝土结构控制温度裂缝成功有效的方法。

The starting, developing ann mrctpc~,~ ~ ~ concrete structure have the characters of longtime, complexities and randomness, the prevention of temperature crack is difficult in the civil engineering. A series of measures were proved to be successful to prevent temperature crack in mass reinforced concrete structure, such as decreasing inner micro-cracks and entering temperature of concrete casting, concentrating temperature observation and temperature and moisture retention curing, all of these were verified by the base of a shear wall structure living building, which is a case of mass reinforced concrete structure.