(1 太原理工大学土木工程学院， 太原 030024； 2 山西大学土木工程系， 太原 030013)

［摘要］空心钢筋混凝土柱截面更扩展、自重较轻，常被用作高架桥墩、巨型框架柱等对稳定性要求较高的结构中。此类构件一旦遭受侧向撞击，更加容易发生破坏。采用有限元分析方法，对内配钢筋与内配钢管两种内壁形式的圆截面空心混凝土柱在侧向撞击力作用下的破坏模式和动力响应全过程等进行了分析，并开展了界面性能和空心率对其耐撞性能的影响分析。研究结果表明，内壁采用钢管的空心钢筋混凝土柱较内壁采用钢筋的构件，具有更良好的耐撞性，且内壁钢管与混凝土的界面性能、空心率对其耐撞性能影响显著。 

［关键词］空心钢筋混凝土； 内衬钢管； 侧向撞击作用； 动力响应； 界面性能； 空心率 

中图分类号：TU398 文献标识码：A文章编号：1002-848X(2021)11-0094-08

Parameter analysis on dynamic response of hollow reinforced concrete columns under lateral impact 

ZHANG  Dongjie1,  WANG  Rui1,  ZHU  Xiang2,  ZHAO  Hui1 

(1 College of Architecture and Civil Engineering, Taiyuan University of Technology， Taiyuan 030024， China；2 Department of Civil Engineering, Shanxi University， Taiyuan 030013， China) 

Abstract: Hollow reinforced concrete (HRC) column, characterized by a more extended cross section and relatively light self-weight, has been extensively applied in the structure with high stability requirements such as viaduct piers and mega-frame columns, which would be vulnerable to the progressive collapse caused by lateral impact. The failure mode and dynamic response process of circular cross-section hollow concrete columns with two inner wall forms of internal steel bar and internal steel tube under lateral impact were analyzed based on the finite element analysis method, and the influence of bond-slip performance and hollow ratio on the impact performance of HRC members were discussed. The research results show that the members with internal steel tube have better performance than those with internal steel bars under lateral impact and the bond-slip performance between inner tube and concrete and hollow ratio have significant influence on the dynamic response of HRC columns under lateral impact. 

Keywords:hollow reinforced concrete； inner tube； lateral impact； dynamic response； bond-slip performance； hollow ratio

*国家自然科学基金项目（51838008），山西省应用基础研究项目（优秀青年基金项目201701D211006）。

 作者简介：张东杰，博士研究生，zhang_dj0809@163.com；通信作者：朱翔，博士，副教授，Email：zhuxiang@sxu.edu.cn。