摘要
装配式建筑节点连接性能的好坏对结构性能的影响至关重要,本文基于小波包能量谱对装配式剪力墙开展了套筒灌浆的缺陷检测研究,采用能量比偏差(E_(RVD))作为缺陷识别参数,并寻求缺陷参数在剪力墙各板带中的分布规律。采用有限元软件ABAQUS进行数值模拟,对比有限元模型检测结果与试验检测结果,验证了有限元模型的正确性。研究结果表明:板带的E_(RVD)值与试件板带中的缺陷大小呈正相关关系,板带中存在的缺陷套筒数量越多,则该板带的E_(RVD)越大。
The connection performance of prefabricated building joints is critical to the overall structural performance.A defect detection study was carried out based on wavelet packet energy spectrum for sleeve grouting in fabricated shear walls.The energy ratio deviation(E_(RVD))is used as the defect identification parameter,and the distribution law of the defect parameters in each strip of the shear wall is sought.Numerica simulation is carried out using finite element(FE)software ABAQUS,and the FE based calculated results are compared with the test results to verify the FE model.The results show that the E_(RVD) of the strip is positively correlated with the defects of degree in the strip.The more defective sleeves present in the strip,the greater the E_(RVD) of the strip.
作者
余毅斐
周德源
张晨昕
张璇
YU Yifei;ZHOU Deyuan;ZHANG Chenxin;ZHANG Xuan(Department of Disaster Mitigation Tongji University,Shanghai 200092,China;Fujian Provincal Institute of Architectural Design and Research Co.,Ltd.,Fuzhou 350001,China;Shandong University of Science and Technology,Qingdao 266590,China)
出处
《结构工程师》
2022年第1期53-60,共8页
Structural Engineers
基金
国家重点研发计划项目(2016YFC0701800)。
关键词
套筒灌浆连接
装配式剪力墙
ABAQUS有限元模拟
小波包分析
leeve grouting connection
fabricated shear wall
ABAQUS finite element simulation
wavelet packet analysis
