施工技术 2015年11月下 54 CONSTRUCTION TECHNOLOGY 第44卷第22期 D0I:10.7672/8gj82015220054 狭小空间内大跨度重型钢桁架施工技术 朱江,于文涛 (中亿丰建设集团股份有限公司,江苏苏州215000) [摘要]详细分析了如何在施工空间有限、多专业交叉施工的情况下,通过方案选择,采用桁架地面分段组装、150 滑车组系统进行单福桁架提升的方案,成功完成2福140超重桁架的安装工作.对滑车组系统中拔杆的设置、吊 具锁具的选择等问题进行了详细的分析计算,从技术措施上保证了方案的顺利实施. [关键词]钢结构;桁架;组装;提升;施工技术 [中图分类号]TU745.2 [文献标识码]A [文章编号]1002-8498(2015)22-0054-04 Construction Technology of Large-span Heavy Steel Truss Within the Narrow Space Zhu Jiang Yu Wentao (Zhongyifeng Construction Group Co.Lad.Suzhou Jiangsu 215000 China) Abstract:This paper analyzes in detail in the limited space and multi-disciplinary construction cases through construction schemes selection using method of truss assembly by segment on the ground and 150 tons of single truss pulley system lifting successfully pleted two 140 tons overweight truss installation work.Some problems of setting of pulling bar and selection of hoisting and anchor equipment in the pulley system are designed and calculated in detail which can assure the construction implementation successfully from the technical aspect. Key words:steel structures;trusses;assembly;lifting;construction 1工程概况 空间结构如图2所示. 某工程项目由东西两幢塔楼和中间裙楼组成, 塔楼最高为95.1m 总建筑面积约11.56万m2.两 栋塔楼之间的裙楼为钢结构桁架结构,骑楼大桁架 在东塔楼和西塔楼之间(①~6轴/①~①轴),⑩ ~6轴桁架跨度36m ①~①轴桁架跨度37.6m 高 度在3层(10.980m)和5层(21.450m)之间.大桁 架SGJ1上下弦杆件SB01为箱形截面900×750× 300;中弦杆件SB02为焊接H型钢截面H800×500× 20×30;两侧连接钢柱为箱形截面750×750×30× 图1整体效果 30;桁架斜腹杆SXC1焊接H型钢截面H800×500× Fig.1 The whole effect 20×30×30;桁架直腹杆为箱形截面600×750× 2安装重点难点分析 30×30....
狭小空间内大跨度重型钢桁架施工技术.pdf
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