【摘 要】
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In order to investigate the tensile bond anchorage properties of Australian 500N steel bars in concrete,111 pullout tests were conducted.The precise bond slip v
【机 构】
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School of Civil Engineering,School of Engineering and Computing Sciences,Department of Building Engi
论文部分内容阅读
In order to investigate the tensile bond anchorage properties of Australian 500N steel bars in concrete,111 pullout tests were conducted.The precise bond slip values have been gained by using the laser displacement sensor with high resolution,including the complete bond-slip curves.How the main anchorage factors such as concrete strength,bar diameter (8,10,12,16,20,24,28,32 and 36 mm) the concrete covered,embedded length and transverse reinforcement influencing the bond anchorage properties was studied under tensile condition.The process of the tensile force-slip failure for Australian 500N reinforcing steel can be divided into five stages:elastic stage,local slip stage,slip in ascent stage,slip in descent stage and remnant stage.The formula for calculating the tensile bond strength of Australian 500N reinforcing bar in concrete was proposed according to the test results,including the consistent model for tensile bond-slip relationship.
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