施工期混凝土楼板实发变形测量与分析  

Measurement and Analysis of Actual Deformation of Concrete Floor During Construction

作　　者：危鼎[1,2] 王铁梦 王桂玲 张晓勇[1] 沈健[1] 谢高华[1] 

机构地区：[1]中国建筑第八工程局有限公司,上海200122 [2]中建王铁梦混凝土研究室,上海200122

出　　处：《施工技术》2017年第19期10-12,共3页Construction Technology

摘　　要：通过对现场楼板实际发生体积变形的测量,发现楼板在早期,特别是前5~8d有很明显的收缩变形,但此收缩变形与楼板的养护条件有密切关系。通过从楼板初凝开始实测楼板在现场不同养护条件下的收缩规律,包括楼板干燥收缩发生的时间、速率、大小,可为预防楼板裂缝提供依据。Through the actual volume deformation measurement of the floor slab,it is found that the floor has obvious shrinkage deformation in the early days,especially in the first 5 ~ 8 days,but the shrinkage deformation is closely related to the maintenance condition of the floor slab. It can provide the basis for preventing floor cracks by analyzing the shrinkage law of floor slab under different curing conditions,including the time,rate and size of floor drying shrinkage.

关 键 词：混凝土 楼板 变形 收缩裂缝 测量 

分 类 号：TU755[建筑科学—建筑技术科学]