整体钢平台结构体系安全性能研究

Research on Safety of Integral Steel Platform Structure System

超高层建造整体爬升钢平台模架装备须随核心筒结构形状的变化而相应变形调整,因此,复杂多变的平面形式和受力工况给钢平台的设计和施工带来了极大困难。针对复杂体型超高结构整体钢平台结构分析与安全控制的难题,本文设计了满足抵抗不同作用的整体钢平台结构,分析了在不同阶段的竖向荷载与作用,并制定了相应的变形控制指标;采用整体模型进行了全过程仿真模拟,并根据受力特点布置了自动化监控装置。采集的监测数据与计算结果吻合较好,有效控制了整体钢平台结构的安全性,为大型装备结构的风险控制提供了支撑。

During the constructions of super-tall buildings,the shape of the integral steel platform must be adjusted accordingly to the changing shape of the core structure.Therefore,the design and construction of the steel platform is extremely difficult due to the complex shape of the core tube structure and variable loading conditions.To address the problem of structural analysis and safety control of integral steel platforms for complex super high-rise buildings,this paper demonstrates how to design the structure of an integral steel platform which is able to resist various loads.The vertical loads at different stages were analyzed,the corresponding deformation indices were developed,and the entire construction process of the platform was simulated.In addition,automatic monitoring devices were installed on the steel platform.The monitoring data are in good agreement with the simulation results,showing the safety of the integral steel platform structure and providing support for the risk control of large-scale equipment structures.