1、 月份年份123456789101112事故总起数比例（%）1995高坠起数735712595106598345总事故起数1381719249311617109131861996高坠起数10249655879547446总事故起数18391714161618131610111611997高坠起数343104102441385646总事故起数8511171113121010411111231998高坠起数1265263833254651总事故起数521078159115567901999高坠起数1031416542323351总事故起数1152958911545652000高坠起数4125443
2、531384360总事故起数4347756651258722001高坠起数3242243234313345总事故起数3354451111778573汇总高坠起数29142739343531373426243836848总事故起数52256173776893816859536077 类别单位洞口临边普通脚普通脚手架手架模板工程井字架（龙门架）特殊脚特殊脚手架手架电梯塔吊打桩机械建设部37.8014.6012.2018.308.501.206.900.40上海市31.5012.409.8017.706.906.605.301.10顶事件中间事件基本事件未探明事件X16X15X4X3X14X13X1
3、2X11X10X1X2X7X6X5脚手架安全事故人从脚手架上坠落脚手架倒塌安全带不合格脚手架安装不合格材料质量不合格脚手架安装不合格机械性破损安全带使用不当脚手杆安装不合格脚手架板安装不合格管材质量不合格立杆安装不合格扣件质量不合格架体与建筑物拉结不合格剪力撑设置不合格管材破损安全带本身破损嫌麻烦没使用忘记穿戴防护栏杆不合格踢脚板立网防护不合格脚手架板不满铺而踩空脚手架板固定不稳而失去平衡管材过度变形管材破损立杆基础不合格立杆间距设置不合格设计不合理人失去平衡与门或门TOPG1G2G3G4G5G6G7G8G9G10G11G12X4X8X9图3 脚手架安全事故故障树分析图TOPG1X1G3G4X
4、1G4G7X1X4G4X1X8G4X1X8G9X1X8X11X1X8X12X1X8G10X1X8X13X1X8X14X1G4G8X1G8G9X1X9G9X1X9X11X1X9X12X1X10G9X1X10X11X1X10X12X1G8G10X1X9G10X1X9X13X1X9X14X1X10G10X1X10X13X1X10X14G2X2X2X2X2X2G5G11X3X3X3X4X4X4X5X5X5X5G6X6X6X6X6X7X7X7X7G12X15X15X15X16X16X16TOPG1G2G2G3G2G7G8X4X8G2G8X4X8X9X10G2X2X4X8X9G5X10G6G2G4G2G9
5、G10X11X12G2G10X11X12X13X14G2X2X11X12X13X14G5G6X1G2X1X2G6X1X2X6X7G12X1X2X6X7X15X16X1X2X6X7X15X16X2X4X8X9X10G11X5G6X2X4X8X9X10X3X4X5G6X2X4X8X9X10X3X5G12X6X7X2X11X12X13X14G11X5G6X2X11X12X13X14X3X4X5G6X2X11X12X13X14X3X4X5G12X6X7X1X2X6X7X15X16X1X2X6X7X15X16X1X2X6X7X15X16X2 X3X4 X5 X6X7X8X9X10X15X16X2 X3 X4X5 X6X7X11X12X13X14X15X16X1X2X6X7X15X16
