冻融环境下钢筋混凝土梁性能损伤研究

摘要

In this paper, based on the study of the freeze-thaw damage of concrete structures in the previous,we select common reinforced concrete beams as the research object.So we designed 13 reinforced concrete beams. First,we carried out a certain number of freeze-thaw cycles for these 13 ordinary beams. Then we had a loading test on them in order to study the effect of the number of freeze-thaw cycles on the reinforced concrete beams cracking load and the bearing capacity,and to learn about the effect of the damage of freeze-thaw cycles on the flexural behavior of reinforced con-crete beams.%在总结前人对混凝土结构冻融破坏研究的基础上,选取了常用的钢筋混凝土梁作为研究对象,设计制作了13根普通钢筋混凝土梁构件,先对这13根普通梁进行一定次数的冻融循环,之后对其加载,进行试验.从而来分析研究冻融循环次数对钢筋混凝土梁构件开裂荷载和承载能力的影响,了解冻融损伤对于钢筋混凝土梁受弯性能的影响.