民国仿木构钢筋混凝土建筑是具有典型中国特色的建筑遗产,大多承载着重要历史文化信息,对其加固修缮应在符合文物保护原则的前提下合理进行结构性能和耐久性的提升。结合浙江某民国仿木构钢筋混凝土结构加固修缮实例,较全面地讨论了仿木构钢筋混凝土结构类型的民国建筑在加固设计中应考虑的若干关键问题,包括检测鉴定、计算分析、混凝土构件加固及墙体加固等,介绍一些有效的解决办法,如钢丝网聚合物砂浆抹面法加固混凝土柱和梁、钢筋网聚合物砂浆抹面法加固混凝土板等,能满足后续使用年限30年的要求,可供同类建筑物加固修缮参考。
Imitating timber-framed reinforced concrete buildings constructed during the period of the Republic of China are typical architectural heritages with Chinese characteristics. Most of theses buildings bear some important historical and cultural information. They should be rationally strengthened according to the preservation rule of cultural relic. Based on strengthening project of a imitating timber-framed reinforced concrete building constructed during the period of the Republic of China in Zhejiang Province, some key problems in strengthening design of this kind of building were roundly discussed, including methods of testing and appraisement, computing and analyzing, concrete members reinforcement and brick wall reinforcement, etc. Some effective methods were introduced to solve the problems, such as the concrete columns and beams were strengthened with steel wire netting polymer mortar method, the concrete slabs were strengthened with steel meshed polymer mortar method, which could make a continuing service life of the building be more than 30 years. Which provided a reference for strengthening similar projects.