为改善居民居住条件，上海某新村9幢四层砖砌房需进行加一层改造。房屋外观检测未发现明显裂缝和变形，也未发现有明显的沉降。采用加气硅酸盐砌块加层，对地基与基础进行验算符合规范的要求。由于该房屋建于1960年，末考虑抗震设防，但按规定加层建筑物需考虑抗震设防。加层改 In order to improve the living conditions of residents, a new layer of nine brick houses in a new village in Shanghai needs to be reconstructed. No obvious cracks and deformation were found in the appearance of the house, and no obvious settlement was found. With the addition of gas-enriched silicate blocks and layers, the verification of the foundation and foundation meets the requirements of the specification. Since the building was built in 1960, seismic fortification was considered at the end of the year. However, if buildings are added in accordance with regulations, seismic fortification should be considered. Add layer change