摘   要：以某中学宿舍楼砖混砌体结构抗震加固工程为例，利用PKPM软件对既有结构进行了安全性鉴定和抗震鉴定，在此基础上进行了抗震加固设计。结果表明：该砌体结构的安全性较差，抗震鉴定中的第一、二级鉴定不满足相关规范要求，需进行抗震加固；综合分析后，对墙体采用双面钢筋混凝土板墙和双面钢筋网水泥砂浆面层加固；加固后，墙体构件的抗力与荷载效应之比大于1.0，楼层综合抗震能力指数大于1.0，加固效果满足相关规范要求，可为类似既有结构的加固设计提供实践参考。

Abstract: Taking the seismic reinforcement project of a brick and concrete masonry structure in a high school dormitory building as an example, PKPM software was used to conduct safety and seismic appraisal on the existing structure, and based on this, the seismic reinforcement design was carried out. The results indicate that the safety of the masonry structure is poor, and the first and second level evaluations in seismic appraisal do not meet the relevant standard requirements, requiring seismic reinforcement. After comprehensive analysis, the wall is reinforced with double-sided reinforced concrete slab wall and double-sided steel mesh cement mortar surface layer. After reinforcement, the ratio of resistance to load effect of the wall components is greater than 1.0, and the comprehensive seismic resistance index of the floor is greater than 1.0. The reinforcement effect meets the requirements of relevant standards, and can provide practical reference for reinforcement design of similar existing structures.