一、工程概况 哈尔滨市第四十九中学位于动力区王兆新村小区,该中学教学楼总建筑面积为4700m~2,层数为五层,砖混结构,外墙厚度为两砖(490mm),两面抹灰,室内刷大白,建于1988年。经过近6年的使用,发现该教学楼东西两侧四个教室及五层中部高低错落的体育器材室等五个房间冬季墙体保温效果很差,墙体有 I. Project Overview Harbin No. 49 Middle School is located in the Wang Zhao Xincun Community in the Power District. The total construction area of ​​the secondary school teaching building is 4700m~2. The number of floors is five, brick and concrete structure, and the thickness of the external wall is two bricks (490mm). Plastering on both sides, interior brushing white, built in 1988. After nearly 6 years of use, it was found that the five classrooms on the east and west sides of the building and the five-storey sports equipment room in the middle of the five floors had poor insulation effect in winter, and the wall had