Effect of repeated loading reinforced concrete beam on acoustic emission wave propagation characteristics
Study on the Influence of Different Load Levels on the Acoustic Emission Wave Velocity of Reinforced Concrete Beam Structures,static graded loading tests and acoustic emission tests were conducted on two reinforced concrete beam specimens with concrete strength levels of C30 and C50.At the same time,the problem of locating the acoustic emission source of reinforced concrete beams with different load levels was analyzed.The results indicate that as the load level increases,the acoustic emission wave velocity exhibits three stages:first slow attenuation,then rapid attenu-ation,and finally slow attenuation.Positioning analysis of reinforced concrete beam structures un-der load,the corrected wave velocity time difference positioning method considering the load level is used to accurately reduce the positioning error to within 2％.
万方数据
维普
