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2012年8月23日中午11时40分,作业人员在工地施工现场进行塔式起重机顶升作业时,起重机上部整体倾覆,造成作业人员伤亡事故。发生事故的塔式起重机,型号为QTZ63B(5012),独立安装高度为35m,标准节长度为2.2m,标准节截面积为3.13m×3.128m,额定起重力矩630kNm,额定最大起重量5t,发生故事时的塔顶顶部距基础表面的垂直距离33.656m,臂长50m。1事故现场勘查事故后经现场勘查,塔式起重机基础表面以上部分高26.4m,除了一道附墙架及矗立的12个标准节
At 23:40 on August 23, 2012, when the operator carried out the tower crane lifting work at the site of the construction site, the entire upper part of the crane overturned, resulting in casualties among the workers. Accident tower crane, model QTZ63B (5012), the independent installation height of 35m, the standard section length of 2.2m, the standard section cross-sectional area of 3.13m × 3.128m, rated lifting torque of 630kNm, rated maximum lifting capacity of 5t, The vertical distance from the top of the tower to the base surface at the time of the story is 33.656m and the arm length is 50m. After an accident scene investigation accident investigation by the scene, tower crane above the surface of the base part of the high 26.4m, except with a wall frame and erected 12 standard sections