钢结构安装专项施工方案.pdf

1 目目 录录 目 录........................................................................ 1 第一章 工程概况................................................................. 5 一.主体结构情况 ..........................................................................................................................................5 二.钢结构施工要点 ......................................................................................................................................5 1.结构形式................................................................................................................................................5 2.施工顺序................................................................................................................................................6 3.钢柱测量................................................................................................................................................6 4.现场安装焊接节点形式.........................................................................................................................6 5.现场塔吊................................................................................................................................................6 第二章 现场平面布置............................................................ 8 一.钢结构安装现场平面布置.......................................................................................................................8 二.地下室施工的布置 ..................................................................................................................................8 三.出地面以上施工布置 ..............................................................................................................................8 第三章 施工部署和施工进度计划 ................................................ 10 一.施工部署................................................................................................................................................10 二.施工进度计划 ........................................................................................................................................10 1.施工进度..............................................................................................................................................10 2.工期保证措施......................................................................................................................................10 三.施工人员、机械配置 ............................................................................................................................11 1. 组织机构.............................................................................................................................................11 2.安装施工机械设备的配置...................................................................................................................12 第四章 构件运输、卸货、存储、和验收 ............................................ 15 一 .构件运输................................................................................................................................................15 二.进场和卸货 ............................................................................................................................................15 三.现场构件验收要点 ................................................................................................................................15 四.钢构件现场堆放管理 ............................................................................................................................16 第五章 钢结构吊装............................................................ 17 一.总体施工顺序及工艺流程.....................................................................................................................17 1.施工区域划分......................................................................................................................................17 2.基准间位置的确定原则.......................................................................................................................17 3.安装顺序..............................................................................................................................................17 4.钢结构安装总体安排...........................................................................................................................17 5.钢结构安装工艺流程...........................................................................................................................18 二．地脚螺栓预埋 .....................................................................................................................................20 1.轴线确定..............................................................................................................................................20 2.定位箍筋位置确定..............................................................................................................................20 3.箍筋定位..............................................................................................................................................20 4.定位法兰盘就位..................................................................................................................................20 5.地脚螺栓就位......................................................................................................................................20 6.地脚螺栓的最终定位...........................................................................................................................21 2 7.混凝土浇注..........................................................................................................................................21 8.钢柱基础地脚螺栓验收.......................................................................................................................21 9.跟踪测量..............................................................................................................................................21 10.柱基础轴线确定................................................................................................................................22 三．东西塔楼钢结构安装..........................................................................................................................22 1.钢柱的安装..........................................................................................................................................22 2.钢梁的吊装..........................................................................................................................................24 3.次梁安装..............................................................................................................................................27 4.钢梁安装的注意事项...........................................................................................................................27 5.钢桁架安装及斜撑..............................................................................................................................27 6.悬挑梁安装..........................................................................................................................................28 四．核心墙砼中柱、梁、埋件施工..........................................................................................................29 1.塔吊总体安排......................................................................................................................................30 2.核心筒区域施工..................................................................................................................................30 3.施工协调..............................................................................................................................................30 五．核心筒内钢梁及楼梯安装..................................................................................................................31 1.结构特点..............................................................................................................................................31 2.安装前准备工作..................................................................................................................................31 3.现场构件的防护..................................................................................................................................31 4.安装前基础交接和构件吊点的设置...................................................................................................31 5.平台梁安装方法和施工顺序...............................................................................................................32 6.钢楼梯安装..........................................................................................................................................33 六．裙房钢结构安装 .................................................................................................................................33 1.结构特点..............................................................................................................................................33 2.施工准备..............................................................................................................................................33 3.柱基础及吊装准备..............................................................................................................................34 5．钢结构吊装.......................................................................................................................................34 6．钢梁的吊装.......................................................................................................................................38 七．屋顶倾斜部分安装（后期报专项方案）..........................................................................................39 第六章 钢结构安装的测量....................................................... 40 一. 轴线控制网的测设 ...............................................................................................................................40 1.建筑物四角桩的定位测设...................................................................................................................40 2.轴线控制桩的测设..............................................................................................................................40 二.高程控制网的测设 ................................................................................................................................40 三.标高控制................................................................................................................................................40 四.基础部分钢柱测量校正.........................................................................................................................41 1.地脚螺栓埋设测量校正.......................................................................................................................41 2. 钢柱测量校正.....................................................................................................................................42 五. 0.000 以上施工测量 ...........................................................................................................................43 1.平面控制测量......................................................................................................................................43 2.核心筒爬模施工测量控制...................................................................................................................46 3.心筒预埋件控制..................................................................................................................................46 4. 高程控制测量.....................................................................................................................................49 六. 人员组织及设备配置 ...........................................................................................................................50 1. 人员组织.............................................................................................................................................50 2.设备配置..............................................................................................................................................50 3 七.质量控制................................................................................................................................................50 1.执行规范..............................................................................................................................................50 2.资料汇编..............................................................................................................................................50 3. 质量保证体系.....................................................................................................................................50 第七章 钢结构焊接............................................................... 52 一．工程概况 .............................................................................................................................................52 1.钢材......................................................................................................................................................52 2.节点形式..............................................................................................................................................52 二．焊接准备 .............................................................................................................................................55 三．焊接施工劳动组织 .............................................................................................................................56 四．焊接施工顺序及焊接工艺..................................................................................................................56 1．安装焊接顺序...................................................................................................................................56 2．焊接工艺...........................................................................................................................................57 3．安装焊接程序一般规定....................................................................................................................58 4．典型节点的焊接顺序和工艺参数....................................................................................................59 五．焊缝质量管理措施 .............................................................................................................................60 六、焊接检验 .............................................................................................................................................62 1．焊缝外观检验...................................................................................................................................62 2．焊缝的无损检测...............................................................................................................................62 七、无损探伤 .............................................................................................................................................62 1．检测方法...........................................................................................................................................62 2．检查数量................................................................................................................................