沈阳市公和斜拉桥1#墩承台大体积混凝土裂缝控制

Control of Large Volume Concrete Crack at No.1 Pier Base of Shenyang Gonghe Cable Stayed Bridge

大体积C40混凝土施工中 ,结合现场的特定条件及外界温度的影响 ,在原材料选用与配合比设计 ,混凝土供应与浇注 ,混凝土内外温差控制及表面养护等方面采取了有效措施 ,避免了大体积混凝土产生有害结构裂缝。

In large volume C40 concrete construction,according to site given conditions and temperature influence from outside world,the effective measures have been taken in materials selection and proportioning design,concrete supplying and placement,controt of temperature difference between inside and outside of concrete along with surface maintenance,avoiding the crack of large volume concrete.