摘要
在役既有建筑物功能改造施工时,存在配件吊装运输机械化水平低、施工效率低和作业安全风险高等问题。钢框架外伸悬臂梁结构的可移动轻型吊装系统是有效解解决这些问题的方法。文章设计了两种可移动轻型吊装系统,通过SAP2000软件计算分析和现场吊装运行试验,对比分析了两种吊装系统的结构安全和吊装运输性能,并对其实际工程应用效果进行了评价。结果表明:在不具备常规吊装运输条件的施工现场,设计研制小型的吊装运输系统是可行的;悬臂梁结构吊装系统具有更优异的吊装运输性能,其设计最大安全吊装重量约为2.20 t,是单纯钢管斜撑悬臂梁结构吊装系统的1.65倍;通过工程实践验证,可移动轻型吊装系统适用于建筑物加固改造施工,可以提高3倍以上的施工效率,解决了现场构件吊装运输的难题。
The movable hoisting system,attached to the extended cantilever beam member of the steel frame,can solve the problems effectively,such as low mechanization,low construction efficiency,and high safety risk.Two movable hoisting systems were designed in this paper.Further,the safety and hoisting performance were investigated by SAP2000 software and site hoisting experiment,and the actual application was evaluated too.The results show that small hoisting transportation systems are feasible under the condition that the construction site is not wide enough for the normal hoisting systems.The cantilever beam structural system has better hoisting performance,and the maximum design hoisting weight can reach 2.20 t,which is 1.65 times that of the steel brace cantilever beam system.The implementation shows that the movable hoisting system can be used in retrofitting and strengthening construction of existing buildings.Furthermore,it can improve the construction efficiency three times more than traditional technology,and solve the difficulty of the hoisting members in the construction site.
出处
《山东建筑大学学报》
2017年第1期93-97,102,共6页
Journal of Shandong Jianzhu University
关键词
轻型吊装系统
优化设计
工程应用
运输性能
light movable hoisting system
optimized design
engineering applications
transport performance
