钢筋混凝土结构的裂缝控制

Crack Control of Reinforced Concrete Structure

钢筋混凝土的裂缝控制问题是建筑工程中很重要的问题之一,特别是最近20年来,泵送商品混凝土获得广泛应用之后,混凝土均质性有了很大改善的同时,裂缝控制技术难度大大增加了。本文是在大量建设实践和现场实验研究基础上,概述了变形作用引起裂缝的原因、约束变形特征、抗与放的设计准则以及综合技术措施等。

Reinforced concrete crack control is one of the most important problems of construction engineering.Especially in the last 20 years,after pumping concrete products being widely applied,concrete homogeneous improves a lot,at the same time,the difficulty of crack control technology increases greatly.In this paper,based on a lot of construction practices and field experiment researches,the causes of crack caused by deformation,the restrained deformation characteristics,the design criterions and comprehensive technical measures are summarized.