南京主线收费大棚及收费广场网架改造工程(更换杆件)施工方案2014-2-20目录1、工程概况...............................................31.1网架杆件更换..................................................................................................................................31.2整体网架表面清理..........................................................................................................................31.3现场防护要求..................................................................................................................................32、网架杆件更换...........................................52.1网架杆件安装更换..........................................................................................................................52.1.1螺栓球网架节点端部处理示意图..........................................................................................52.1.2杆件安装更换前的准备工作..................................................................................................52.1.3杆件更换................................................................................................................................102.1.4卸载........................................................................................................................................102.1.5更换杆件复核.........................................................................................................................112.2网架安装的质量控制....................................................................................................................113、施工安全..............................................123.1安全方针和目标............................................................................................................................123.2危险作业区域划定........................................................................................................................123.3高处作业的人员安全要求............................................................................................................124、现场文明施工措施......................................144.1施工标牌........................................................................................................................................144.2施工区域材料(工具)存放........................................................................................................144.3其他要求........................................................................................................................................145、突发事件应急处理措施..................................155.1防止支点下沉,控制网架挠度...................................................................................................155.2突发安全事故处理.......................................................................................................................155.2.1危险源评估与预防................................................................................................................155.2.2应急措施................................................................................................................................17应急小组机构及设备清单.............................................................................................................20应急救援线路...........................