重庆大学学报2024，Vol.47Issue(6)：58-67,10.DOI:10.11835/j.issn.1000.582X.2024.06.006
榫卯-灌浆套筒混合连接装配式方墩轴压性能研究
Experimental study on axial compressive performance of assembled square pier with tenon and mortar sleeve hybrid connection
摘要
Abstract
Existing studies have shown that the seismic performance of the mortise and grouting sleeve mixed connection assembled square pier (referred to as the mixed connection assembled pier) is close to that of the integral cast-in-place pier. In order to further explore the axial compression performance of the mixed-connected bridge piers,a series of axial compressive tests were conducted on one integral cast-in-place bridge pier (No. ZT) and four mixed connection and assembled bridge piers (No. GTA-0～GTD-0) with varying parameters such as the length,diameter and wall thickness of the steel pipes. The results show that the bearing capacity of GTA-0～GTD-0 specimens increased by 10.1％ to 14.4％ compared to the ZT specimens,and their ductility coefficients were all greater than that of ZT specimens. The axial compression bearing capacity of GTA-0～GTD-0 specimens increased with the diameter and length of the steel pipe,while the wall thickness of the steel pipe had a relatively minor impact on the bearing capacity. The damage position of the assembled bridge pier moves upward with the increase of the steel pipe length,gradually approaching the integral cast-in-place bridge pier,but the failure modes of the two are basically the same.关键词
装配式/混合接头/轴压试验/桥墩/承载力Key words
assembled/mixed joint/axial compression test/bridge pier/bearing capacity分类
交通工程引用本文复制引用
林上顺,何乐,夏樟华,秦志清,张乐彤,陈治雄..榫卯-灌浆套筒混合连接装配式方墩轴压性能研究[J].重庆大学学报,2024,47(6):58-67,10.基金项目
福建省自然科学基金资助项目(2019J01779,2019H6020,2020J1477) （2019J01779,2019H6020,2020J1477）
福州市科技成果转移转化资助项目(2020-GX-18).Supported by Natural Science Foundation of Fujian Province(2019J01779,2019H6020 and 2020J1477),and Fuzhou Scientific and Technological Achievements Transfer and Transformation Project(2020-GX-18). （2020-GX-18）
