大型双面倾斜爬坡桁架单车吊装工艺

Hoisting technique of heavy double-sided sloping climbing truss using single crane

在炼油化工厂内缺少桁架预制场地及吊装设备站位点的情况下,进行大型山体爬坡桁架的安装,是桁架安装中的难点。结合哈萨克斯坦PKOP奇姆肯特炼油厂现代化改造项目爬坡桁架安装实例,首先,简要介绍了工程概况及施工难点;其次,在简单介绍了常用吊装方法的基础上,较为详细地论述了本工程采用的单吊车直吊整体吊装就位的方法和解决施工难点的措施;其三,重点介绍了桁架预制及摆放、吊耳设置、吊车及索具设置、吊装就位等吊装方法的实施过程;最后,介绍了吊装质量和HSE的管理措施,并提出了一些经验与体会。

Installation of heavy sloping climbing truss is a difficult task as without prefabricating area and standing site for hoisting equipment in a refinery plant. This paper illustrates the climbing truss installation in Kazakhstan PKOP Shymkent Refinery Reformation Project in aspects of the project outline,construction difficulties,integral hoisting method using single crane and relative measures,and the implementation procedures（ truss prefabrication and setting out, setting of hoisting lugs, crane and setting of rigging,hoisting to place）. Also,It introduces the measures of quality and HSE managements and puts forward some experience.