Strength and Deflection of Concrete Plates with Corroding Reinforcement
This paper presents the results of an experimental study on six roof plates used 43 years in the field with corroding reinforcement and deteriorating concrete. The specimens were tested under four-point bending to determine their load-deflection curves and the ultimate flexural strength. As a result, the slope of the load-deflection curves decreases with increasing degree of reinforcement corrosion. The reduction in reinforcing bar cross section due to corrosion has an insignificant effect on the residual flexural strength of roof plates. The reduction in residual strength is primarily due to the loss or breakdown of the steel/concrete interracial bond. It has been suggested that 18 to 29 percent strength reduction in steel bar section due to corrosion results in failure of serviceability.
Concrete roof plates Corroding reinforcement Residual strength Deflection
Gentian Zhao Fubo Cao
School of architecture & civil engineering, Inner Mongolia University of science & technology, Baotou 014010, China
国际会议
南京
英文
843-846
2007-10-16（万方平台首次上网日期，不代表论文的发表时间）