天津市区的住宅建筑中,有很大一部分旧住宅区的建筑指数较高、密度较大。由于住宅的型式与其结构不同,加以建筑年代先后不一,因此,建筑物的损坏程度也就不等。这些高密度旧住宅区的改建,凡成片严重损坏的住宅区可以全面规划、统筹设计重建,至于损坏程度不是很严重的住宅,有些兴建年代并不太久,有些只需略加修缮加固即可使用,或只需部分拆除落地重建。 In residential buildings in the urban area of ​​Tianjin, a large part of the old residential areas has a higher architectural index and a higher density. Due to the difference in the type and structure of the dwelling, the age of the building was different. Therefore, the degree of damage to the building was not equal. In the reconstruction of these high-density old residential areas, all residential areas that have been seriously damaged can be fully planned and co-ordinated in design and reconstruction. As far as residential buildings are not seriously damaged, some have not been built for a long time, and some require only a little repair and reinforcement. Can be used, or only partially removed for landing reconstruction.