超声波检测混凝土梁工作应力状态研究
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摘要
通过4根钢筋混凝土梁超声波检测试验,研究了三等分荷载下混凝土梁不同位置和不同应力对超声波声速的影响规律。在试验数据的基础上,拟合得出了混凝土梁构件的拉应力与声速关系曲线,与试验数据吻合较好,并给出系数表,为混凝土梁构件工作应力的检测和评价提供参考。
Through the ultrasonic testing of four reinforced concrete beams,the effects of different positions and intensities of the concrete beams on the ultrasonic velocity under the trisectional load were studied.Based on the experimental data,the fitting curves of ternsile stress and ultrasonic velocity of the concrete beam members are obtained,which is in good agreement with experimental data,We also get the coefficient table,which provides a reference for the detection and evaluation of working stress of concrete beam members.
Through the ultrasonic testing of four reinforced concrete beams,the effects of different positions and intensities of the concrete beams on the ultrasonic velocity under the trisectional load were studied.Based on the experimental data,the fitting curves of ternsile stress and ultrasonic velocity of the concrete beam members are obtained,which is in good agreement with experimental data,We also get the coefficient table,which provides a reference for the detection and evaluation of working stress of concrete beam members.
引文
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[5]朱志文,朱江,齐建林,等.钢纤维增强橡胶高强混凝土受力状态下超声波传播特性研究[J].混凝土,2010(1):12-14.
[6]宋丽莉,葛洪魁,郭志伟.利用多次散射波监测介质性质变化的试验研究[J].岩石力学与工程学报,2012,31(4):713-722.
[7]宋丽莉,葛洪魁,梁天成.小应力扰动下岩石弹性波速变化的波形检测[J].中国石油大学学报:自然科学版,2012,36(4):60-65.
[8]高昊,郝文秀,李梁,等.超声波法检测混凝土工作应力状态试验研究[J].建筑科学,2017,33(3):94-99.
[9]姚俊杰,陈祖湘.超声波检测混凝土强度测强曲线的建立[J].广东土木与建筑,2000(1):44-46.
[2]Glenn Washer,Paul Fuchs,Member Benjamin A.et al.Ultrasonic testing of reactive powder concrete transactions on ultrasonics[J].Ferroelectrics and Frequency Control,2004,51(2):193-201.
[3]Mesut Tigdemir,Figen Kalyoncuoglu.S,Yalcin Kalyoncuoglu U.Application of ultrasonic method in asphalt concrete testing for fatigue life estimation[J].NDT&E International,2004(37):597-602.
[4]李芬,沈成武,李永信,等.基于超声波检测技术的沥青混凝土探伤研究[J].武汉理工大学学报,2006,30(2):293-296.
[5]朱志文,朱江,齐建林,等.钢纤维增强橡胶高强混凝土受力状态下超声波传播特性研究[J].混凝土,2010(1):12-14.
[6]宋丽莉,葛洪魁,郭志伟.利用多次散射波监测介质性质变化的试验研究[J].岩石力学与工程学报,2012,31(4):713-722.
[7]宋丽莉,葛洪魁,梁天成.小应力扰动下岩石弹性波速变化的波形检测[J].中国石油大学学报:自然科学版,2012,36(4):60-65.
[8]高昊,郝文秀,李梁,等.超声波法检测混凝土工作应力状态试验研究[J].建筑科学,2017,33(3):94-99.
[9]姚俊杰,陈祖湘.超声波检测混凝土强度测强曲线的建立[J].广东土木与建筑,2000(1):44-46.