超高层建筑智能建造机关键系统设计及仿真分析

Design and Simulation Analysis of Key System of Intelligent Construction Machines for a Super High Rise Building

为了加快超高层建筑核心筒墙体的建造效率,文中设计出了一种符合核心筒结构特点的少支点智能建造机,对设计出的智能建造机在施工、顶升和爬升阶段下进行仿真分析。仿真结果表明:智能建造机在施工、顶升和爬升三种阶段下应力较大的构件主要集中在一级桁架与支撑立柱的连接处、一级桁架的斜腹杆和支撑立柱的斜腹杆,最大应力值为247.78 N·mm^(-2)(<305 N·mm^(-2)),构件变形最大处位于钢桁架平台西北和东南区域的最外圈三级桁架处,最大竖向位移为42.81 mm(<L/400=50.21 mm),各个构件的强度与刚度均符合钢结构设计标准,结构整体安全可靠。

In order to raise the construction efficiency of the core tube wall of super high rise buildings,the paper presents an intelligent construction machine with few supporting points that conforms to the characteristics of the core tube structure,which are simulated and analyzed in the construction,jacking and climbing stages.The results show that,in the three stages,the components of the intelligent construction machine which have relatively high stress are mainly concentrated in the connection between the first level truss and the supporting column,the diagonal web of the first level truss and the diagonal web of the supporting column.The maximum stress value is 247.78 N·mm^(-2)(<305 N·mm^(-2)).The maximum deformation is located at the outermost third level truss in the northwest and southeast areas of the steel truss platform,and the maximum vertical displacement is 42.81 mm(<L/400=50.21 mm).It is concluded that the strength and stiffness of each component meet the standards of steel structure design and the overall structure is safe and reliable.