大体积混凝土结构裂缝控制措施

Controlling Measures for Structure Crack of Massive Concrete

在我国现代桥梁建筑大跨径桥梁中,大体积混凝土工程使用频繁,而大体积混凝土常常因温度应力造成混凝土产生裂缝,混凝土耐久性差,减少桥梁的使用寿命。笔者结合工程实践,分析了温度裂缝产生的原因,提出了防止大体积混凝土结构产生裂缝的措施。

In building of bridge with large span over our country, the massive concrete engineering is applied frequently. While the massive concrete usually causes concrete crack due to temp stress,the durability of concrete is poor and the service life of bridge is reduced. In the light of engineering practice, author analyzes reasons for crack owing to temp stress and proposes the measures preventing the massive concrete structure to produce crack.