(1 湖南大学土木工程学院， 长沙 410082； 2 湖南省第二工程有限公司， 长沙 410015；3 湖南固特邦土木技术发展有限公司， 长沙 410082)

［摘要］为研究已震损的钢筋混凝土框架结构的快速可恢复性，对7榀框架进行了预震损及快速加固修复，养护24h后进行低周反复荷载破坏试验，并对比研究了灌浆料种类及钢丝网层数对加固效果的影响。与未损框架结构进行骨架曲线、位移延性系数、刚度退化曲线及等效粘滞阻尼系数等参数的对比分析，计算结果表明，钢丝网复合灌浆料修复对框架的承载力提高作用是有限的，但对抗震性能的提高作用效果明显；两种灌浆料加固均表现出良好的延性。试验结果表明，采用环氧灌浆料不加钢丝网的加固形式即可使加固框架满足抗震需要，为震后建筑的快速修复提供了理论依据。 

［关键词］快速可恢复性；震损钢筋混凝土框架；拟静力试验；钢丝网复合灌浆料 

中图分类号：TU375-4 文献标识码：A文章编号：1002-848X(2021)15-0081-07

Study on seismic behavior of earthquake-damaged frame structures with rapid reversibility 

HUANG  Liang1,  SUN  Qiang1,  DENG  Peng1,  ZHANG  Mingliang2,  SHAN  Ren3,  PENG  Bo3 

(1 College of Civil Engineering, Hunan University, Changsha 410082， China； 2 Hunan No.2 Engineering Co., Ltd., Changsha 410015， China； 3 Hunan Gutebang Civil Engineering Development Co., Ltd., Changsha 410082， China) 

Abstract:In order to study the rapid recoverability of the earthquake-damaged reinforced concrete frame structure, 7 trusses of frames were preearthqake-damaged and quickly strengthened and repaired. After 24 hours maintenance, the low-cycle repeated load failure test was carried out, and the influence of grouting materials and steel mesh layers on the reinforcement effect was compared. By comparison with the skeleton curve, displacement ductility coefficient, stiffness degradation curve and equivalent viscous damping coefficient of the undamaged frame, it can be concluded that the repair of steel wire mesh composite grouting material has a limited effect on improving the bearing capacity of the frame, but a significant effect on improving the seismic behavior. Both grouting materials show good ductility. The experimental results show that the reinforced frame can meet the seismic needs by using epoxy grouting without wire mesh, which provides a theoretical basis for the rapid restoration of post-earthquake buildings. 

Keywords:rapid reversibility； earthquake-damaged reinforced concrete frame； pseudo-static test； steel wire mesh composite grouting material

*国家自然科学基金青年项目（51908205）。

 作者简介：黄靓，博士，教授，博士生导师，Email:huangliangstudy@126.com。