既有砌体结构高延性混凝土加固技术研究  

Research on the Reinforcement Technology of High Ductility Concrete of Existing Masonry Structures

作　　者：姜景 张锡凯[1,2] 孙勇 JIANG Jing;ZHANG Xikai;SUN Yong(Jiangsu Jianyan Civil Engineering Quality&Safety Appraisal Co.,Ltd,Nanjing Jiangsu 210008 China;Jiangsu Research Institute of Building Science Co.,Ltd,Nanjing Jiangsu 210008 China)

机构地区：[1]江苏建研建设工程质量安全鉴定有限公司,江苏南京210008 [2]江苏省建筑科学研究院有限公司,江苏南京210008

出　　处：《江苏建筑》2023年第3期60-63,81,共5页Jiangsu Construction

摘　　要：文章以南京市某小学加固改造工程为例,研究高延性混凝土加固技术在既有砌体结构加固改造中的应用。首先,介绍了高延性混凝土加固技术相比传统的砌体结构加固技术的优越性;接着,介绍了高延性混凝土加固技术具体的施工流程;最后,以南京市某小学为例,通过抗力与荷载效应之比对其进行加固验算,结果表明,加固前其比值不满足要求且安全性不足,对墙体采用高延性混凝土加固后,比值均大于1,安全性得到提高。这表明文章所采用的高延性混凝土加固技术的有效性,可对类似工程提供借鉴意义。In this paper,taking the reinforcement and renovation project of a primary school in Nanjing as an example,the application of high ductility concrete reinforcement technology in the reinforcement and transformation of existing masonry structures is studied.Firstly,the superiority of high ductility concrete reinforcement technology compared with traditional masonry structure reinforcement technology is introduced;Next,the specific construction process of high ductility concrete reinforcement technology is introduced;Finally,taking a primary school in Nanjing as an example,the reinforcement was calculated by the ratio of resistance to load effect,and the results showed that the ratio before reinforcement did not meet the requirements and the safety was insufficient,and the safety of the wall was strengthened by high ductility concrete,and the ratio was greater than 1.This shows the effectiveness of the high ductility concrete reinforcement technology used in this paper,and has reference significance for similar projects.

关 键 词：高延性混凝土 既有砌体结构 抗力与荷载效应之比 结构安全性 

分 类 号：TU746.3[建筑科学—建筑技术科学]