刘家峡大桥钢桁加劲梁、正交异性桥面板安全专项施工方案（加劲梁、桥面板）中交第一公路工程局有限公司临夏折桥至兰州达川二级公路ZD2合同段2011年10月目录编制依据...................................................................................................-1-1、工程概述.............................................................................................-2-1.1大桥概况...............................................................................................-2-1.2桥梁结构特点.......................................................................................-2-1.3桥梁用材料............................................................................................-3-1.3.1钢材.................................................................................................-3-1.3.2焊接材料.........................................................................................-4-1.3.3高强度螺栓.....................................................................................-5-1.3.4涂装材料.........................................................................................-5-1.4钢桥施工方案概述................................................................................-6-2、运输方案.............................................................................................-6-3、主要施工工艺及方法.........................................................................-7-3.1施工准备...............................................................................................-7-3.1.1材料采购及管理..............................................................................-7-3.2技术准备...............................................................................................-7-3.3技术培训...............................................................................................-8-4、主要施工工艺......................................................................................-9-4.1作样、号料............................................................................................-9-4.2切割......................................................................................................-9-4.3零件矫正.............................................................................................-10-4.4边缘加工.............................................................................................-11-4.5制孔....................................................................................................-12-4.6组装....................................................................................................-13-3.6.1钢板接料必须在杆件组装前完成，应符合下列规定：............-13-3.6.2组装准备......................................................................................-14-4.7焊接.....................................................................................................-16-4.7.1制定焊接工艺...............................................................................-16-4.7.2焊接质量保证措施.......................................................................-16-4.7.3焊材储存和使用要求...................................................................-17-4.7.4定位焊..........................................................................................-18-4.7.5焊接..............................................
