1.福建理工大学 福建省土木工程新技术与信息化重点试验室，福州 350118;2.福州大学 土木工程学院，福州 350108;3.福建省交通规划设计院有限公司，福州 350004;4.福建省榕圣市政工程股份有限公司,福州350002
林上顺（1972—），男，博士，教授，硕士生导师，主要从事预制拼装桥梁方向研究，(E-mail)578982122@qq.com。
U433.22
福建省自然科学基金资助项目（2019J01779，2019H6020，2020J1477）；福州市科技成果转移转化资助项目（2020-GX-18）。
1.Fujian Provincial Key Laboratory of Advanced Technology and Information in Civil Engineering, Fujian University of Technology, Fuzhou 350118, P. R. China;2.School of Civil Engineering, Fuzhou University, Fuzhou 350108, P. R. China;3.Fujian Transportation Planning and Design Institute, Fuzhou 350004, P. R. China;4.Fujian Rongsheng Municipal Engineering Co., Ltd., Fuzhou 350002, P. R. China
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).
已有研究表明，榫卯-灌浆套筒混合连接装配式方墩（简称混合连接拼装桥墩）的抗震性能接近于整体现浇桥墩。为进一步探讨混合连接拼装桥墩的轴压性能，以钢管的长度、直径以及壁厚等为变化参数，进行1个整体现浇桥墩（编号ZT）和4个混合连接拼装桥墩（编号GTA-0~GTD-0）的轴压承载力试验，结果表明，GTA-0~GTD-0试件的承载力比ZT试件提高了10.1%~14.4%，其延性系数均大于ZT试件；GTA-0~GTD-0试件的轴压承载力随钢管直径和长度的增大而增大，而钢管壁厚对于试件承载力的影响较小；拼装桥墩的破坏位置随着钢管长度的增加而上移，逐渐接近于整体现浇桥墩，但二者的破坏模式基本相同。
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.
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.
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