哈尔滨工程大学学报2025，Vol.46Issue(10)：1974-1983,10.DOI:10.11990/jheu.202404023
T型方颈螺栓连接H形钢梁-钢管混凝土柱节点抗震性能试验研究
Experimental study on the seismic performance of a T-head square-neck bolted H-beam to concrete filled steel tubular column connection
摘要
Abstract
A T-head square-neck bolt(TSB)was proposed to realize the full bolted connection in the frame struc-tures for addressing the problems of complex construction,high cost,and installation difficulties associated with ex-isting one-sided bolts.In this study,low cyclic tests were conducted on two full-scale TSBCs.The seismic perform-ance of the intact TSBC,without internal strengthening measures,and the spliced TSBC with internal H-stiffener strengthening measures were compared.Accordingly,corresponding analytical models and calculation formulas for the two types of TSBCs were proposed.The results show that the TSBCs have plump hysteresis curves,good energy dissipation capability and ductility,and can be categorized as a semi-rigid connection.Compared with the intact TSBC without the internal strengthening measure,the deformation of the splicing TSBC with the internal H-stiffener strengthening measure is concentrated in the endplate,and the column wall exhibits no obvious deformation.Inter-nal strengthening measures should be incorporated into the design of TSBCs,and the selection of the internal stiff-ener cross section should depend on the maximum shear force in the connection.The calculated values of the ben-ding moment for the TSBCs based on the proposed theoretical models agree well with the experimental values,pro-viding a reference for the research and application of similar connections.关键词
T型方颈螺栓/钢管混凝土柱/梁柱节点/半刚性连接/抗震性能/耗能能力/分析模型/设计方法Key words
T-head square-neck bolt/concrete filled steel tubular column/beam-column connection/semi-rigid connection/seismic performance/energy consumption capacity/analytical models/design method分类
建筑与水利引用本文复制引用
孙乐乐,王培军,尤洋,刘砚夫,侯钢领,贺敏..T型方颈螺栓连接H形钢梁-钢管混凝土柱节点抗震性能试验研究[J].哈尔滨工程大学学报,2025,46(10):1974-1983,10.基金项目
国家自然科学基金项目(52078280) （52078280）
黑龙江省重点研发计划(2022ZX01A14) （2022ZX01A14）
烟台市校地融合发展项目(22MZ03CD012). （22MZ03CD012）
