超长混凝土结构收缩与温度裂缝控制探讨  

Discussion of Preventing Shrinkage Cracks in Super Long Reinforced Concrete Structure

作　　者：方俊 任胜谦 张吉柱[2] 

机构地区：[1]中建科工(北京)检测中心,北京100012 [2]建研科技股份有限公司,北京100013

出　　处：《建筑科学》2014年第5期121-124,129,共5页Building Science

摘　　要：超长混凝土结构常常由于混凝土收缩和环境温度降低而出现收缩与温度裂缝。控制该类裂缝要从设计、施工和材料等诸多方面采取措施。后浇带技术、预应力技术、精心施工和饱水养护是控制超长混凝土结构收缩与温度裂缝的常用措施。Some shrinkage cracks are occured frequently in the super long reinforced concrete structure,because of the concrete shrinkage and lower temperature. In order to prevent the cracks,some measures must be adopted from designing,construction and material. There are some common measures,such as later-poured belts technology, prestress technology,careful construction and moist-curing on preventing cracks in the super long reinforced concrete structure.

关 键 词：超长混凝土结构 收缩 后浇带 预应力 

分 类 号：TU37[建筑科学—结构工程]