CAUSE ANALYSIS AND REINFORCEMENT TREATMENT OF FLOOR CRACK IN A CERTAIN RESIDENTIAL BUILDING

摘要

The quality problem of cracks is widespread for cast-in-place concrete floors,which has aroused great attention of the community with the increase of cases of complaint.On the combination of the two cast-in-place concrete floors with cracks,a test on field detection,cause analysis and theoretical calculation,and reinforcement scheme are taken in this paper.By detection and analysis,we obtained the causes of strength shortage that actual values of slab thickness and steel bar stress are different from its design values.A comprehensive analysis of the causes,carbon fibers are used to reinforce.The result shows that the reinforced floors can meet the normal requirements,which can provide a reference for the detection,analysis and reinforcement of similar projects.