（1北京建筑大学土木与交通工程学院，北京100044；2 东南大学土木工程学院，南京 210096；3启迪设计集团股份有限公司，苏州215021）

［摘要］基于我国规范标准的两级鉴定方法及以“小震不坏”为单一目标的传统抗震加固为基础，总结得到基于性能的减震加固、隔震加固方法，给出既有建筑结构抗震性能评估方法及相关可量化指标、设计流程、关键技术等。经过分析得出，基于性能的减震加固、隔震加固技术相比传统抗震加固技术可实现更高的性能目标且具有比较明显的经济优势，在既有医疗建筑、防灾减灾建筑、学校等生命线工程的抗震性能提升中有着广泛应用前景。

［关键词］既有建筑；混凝土结构；减震加固；隔震加固；抗震性能评估

中图分类号：TU318+.1文献标识码：A文章编号：1002-848X(2020)24-0048-08

Research and application of seismic performance improvement technology for existing concrete structures

LU Song1, LI Aiqun1,2, XU Wenxi3

(1 School of Civil and Transportation Engineering，Beijing University of Civil Engineering and Architecture,Beijing 100044，China; 2 School of Civil Engineering, Southeast University, Nanjing 210096,China; 3 Tus-Design Group Co., Ltd., Suzhou 215021,China)

Abstract:Based on the two grade appraisal methods and the traditional seismic strengthening with “small earthquake is not destroyed” as single objective according to Chinese codes and standards, the methods of energy dissipation reinforcement and seismic isolation reinforcement based on performance were summarized, the assessment methods of seismic performance of existing buildings and the relevant quantifiable indexes,  design procedures, key technologies and so on were given. Evidence from numerical analysis makes it clear that the performance-based technologies of energy dissipation reinforcement and seismic isolation reinforcement which can achieve higher performance goals and has apparent economic advantages compared with the traditional seismic reinforcement technology. There are broad application prospect in the seismic performance improvement of lifeline projects, such as existing medical buildings, disaster prevention and reduction buildings,schools and so on.

Keywords:existing building; concrete structure;  energy dissipation reinforcement; seismic isolation reinforcement; seismic performance assessment

*北京未来城市设计高精尖创新中心项目 (UDC2016030200); 北京市属高校高水平教师队伍建设支持计划项目(IDHT20170508)。

作者简介：鲁松，博士研究生， Email：906002603@qq.com;通信作者：李爱群，博士，教授， Email：aiqunli@seu.edu.cn。