工程事故概况南京市牯岭路24号01住宅工程系三层混合结构,建筑面积603m~2,1985年12月4日开工,1986年8月20日基本峻工,因存在质量问题较多,一直未验收,其后承建单位同意住户搬入。1987年2月4日下午5时,三层一阳台突然倒塌,造成在阳台上玩耍的一名6岁儿童摔落死亡的恶性事故(图1)。 Project accidents, Nanjing No. 24, Ling Ling Road, No. 24, residential engineering, three-story mixed structure, construction area 603m~2, started on December 4, 1985, basically completed on August 20th, 1986, due to many problems in quality, It has not been accepted, and the contractor subsequently agreed to move in. At 5:00 p.m. on February 4, 1987, the three-story, one-story balcony suddenly collapsed, causing a six-year-old child playing on the balcony to fall into a fatal accident (Figure 1).