江苏高层框筒大厦屋面钢结构安装支架施工方案

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1、南京**科技大厦A楼屋面钢结构安装工程支架专项施工方案编制：审核：审批：南通**建筑集团有限公司无锡**脚手架工程技术有限公司2012-3-28目录1．工程概况·····························································12．方案编制依据·························································33．支架材料选用·························································33.

2、1承重支架材料选用…………………………………………………………………33.2安全防护材料选用…………………………………………………………………44．支架体系施工设置·····················································44.1支架体系施工设置…………………………………………………………………44.2支架体系施工要点…………………………………………………………………65．支架系统施工准备及地基基础处理·······································65.1施工准备……

3、………………………………………………………………………65.2地基基础处理………………………………………………………………………66．施工组织·····························································76.1人员组织……………………………………………………………………………76.2设备组织……………………………………………………………………………76.3材料组织……………………………………………………………………………77．质量控制··························

4、···································87.1支架体系产品进场质量控制………………………………………………………87.2支架体系搭设质量控制……………………………………………………………88．安全措施·····························································89．应急预案·····························································99.1工程预案概况………………………………………………………

5、………………99.2机构设置……………………………………………………………………………99.3机构职责……………………………………………………………………………99.4应急救援工作程序………………………………………………………………109.5救援方法…………………………………………………………………………10附件：1：承插型盘扣式钢管支架结构计算书2：A楼屋面新增钢结构安装工程支架施工设计图南京**科技大厦A楼屋面新增钢结构安装工程支架施工方案1．工程概况南京**大厦A楼屋面新增钢结构工程，屋顶标高100.75米，因建设单位对该工程屋面空间进行充

6、分的利用，即在106.75米和119.85米的位置分别增加一层钢梁，施工现场塔吊为中联160塔吊，塔吊大臂顶端最大起重2吨，大臂根部最大起重5吨。106.75米标高位置最大构件为GL-6与GL-10,最大重量为5990㎏，离塔吊最远构件为1186.3㎏，针对塔吊超过最大力矩时，将钢梁分段设计并进行分段拼接和安装，分段如下表1：表1106.75米标高钢梁分段汇总表构件编号构件重量离塔吊最远距离分段数GL-21187㎏63m不分段GL-65999㎏60m3段GL-105999㎏20m2段119.85米标高位置，梁都比较重，现场采用高空制作和分段安装。

7、针对塔吊超过最大力矩时，将钢梁分段设计并进行分段拼接和安装，具体制作和分段如下表2：表2119.85米标高钢梁分段、制作方法汇总表构件编号构件重量离塔吊最远距离主要现场制作安装法GL-55432㎏29m直接分两段，现场焊接GL-79407㎏47m上、下翼缘板、腹板均分两段，现场制作装配GL-96165㎏22m直接分两段，现场焊接GL-209292㎏35m上、下翼缘板、腹板均分两段，现场制作装配GL-249292㎏30m上、下翼缘板、腹板均分两段，现场制作装配GL-369407㎏37m上、下翼缘板、腹板均分两段，现场制作装配GL-386165㎏19

8、m直接分两段，现场焊接GL-505421㎏25m直接分两段，现场焊接钢梁安装采用承插型盘扣式钢管支架（以下简称“速接架”）搭设成安装胎架