同济大学学报（自然科学版）2024，Vol.52Issue(3)：323-330,8.DOI:10.11908/j.issn.0253-374x.22267
桩柱式桥墩-桩基连接的抗震性能分析
Seismic Performance of Column-to-drilled-shaft Connections
摘要
Abstract
In order to deeply reveal the force transmission and damage mechanism of column-to-drilled-shaft connections,detailed finite element simulation of exist experimental test was conducted,and force transmission and damage mechanism were analyzed.After verification of finite element models,the effect of shear-span ratio,embedment depth,connection diameter-to-column diameter ratio and pile transverse reinforcement ratio on seismic performance of column-to-drilled-shaft connections was studied by numerical simulation.Results indicate that proposed finite element models can adequately replicate the mechanical behavior of column-to-drilled-shaft connection.The damage of connection region is presented as pile stirrup yielding induced by horizontal compression from embedment pier segment.Additionally,the connection strength increases with the increasing of shear-span ratio,connection diameter-to-column diameter ratio,embedment depth and pile transverse reinforcement ratio.关键词
桩柱式桥墩/承插式连接/数值模拟/破坏模式/参数分析Key words
column-shaft bridge pier/socket connection/numerical simulation/damage mechanism/parametric study分类
交通工程引用本文复制引用
张鹏辉,周连绪,王志强..桩柱式桥墩-桩基连接的抗震性能分析[J].同济大学学报（自然科学版）,2024,52(3):323-330,8.基金项目
国家自然科学基金(51978511,51778470) （51978511,51778470）
