某水文化建筑钢结构连廊整体提升技术分析  

Technical Analysis of Overall Lifting Process for Steel Corridors in a Water Cultural Building

作　　者：朱琳[1] 李龙龙 高茁 ZHU Lin;LI Longlong;GAO Zhuo(China Water Resources Beifang Investigation,Design and Research Co.Ltd.,Tianjin 300222)

机构地区：[1]中水北方勘测设计研究有限责任公司,天津300222

出　　处：《水利水电工程设计》2025年第2期1-4,共4页Design of Water Resources & Hydroelectric Engineering

摘　　要：某水文化建筑为框架-剪力墙结构,其第十三层设置大跨度钢桁架空中连廊连接两侧塔楼。工程采用超大型液压同步提升技术对钢连廊进行整体提升,由散拼高程提升至安装就位高程。在此提升过程中,钢连廊的荷载逐渐由支撑胎架转移至提升吊索,连廊内部也发生着复杂的内力重分布变化。因此有必要对钢连廊进行提升全过程数值模拟,以分析钢连廊各构件及支撑胎架的内力、结构变形趋势,并判定提升过程中的最不利工况、需要控制的位移指标,为水利行业中类似技术的应用提供参考。从分析结果可知:整体提升各工况下各构件的应力比满足设计要求,但脱架阶段部分胎架内力存在增大的趋势,且在施工过程中应注意保证各吊点的提升同步性,减少桁架起提工况下的各吊点的位移差。A water culture building with a frame-shear wall structure features a large-span steel truss corridor on the 13th floor,connecting two adjacent towers.To lift the steel corridor from its assembly elevation to final installation height,the project employs ultra-large hydraulic synchronous lifting technology.During the lifting process,the load gradually transfers from the supporting framework to the lifting slings,leading to a complex redistribution of internal forces within the corridor.To ensure safety and precision,a numerical simulation of the entire lifting process is performed to analyze the internal forces and deformation trends of the corridor components and the supporting frames.The analysis identifies critical conditions and establishes displacement control thresholds to guide the lifting process and provide a reference for similar applications in the water conservancy sector.Results show that the stress ratios of all components under various conditions meet design requirements.However,some supporting frames exhibit a tendency for increased internal forces during the disengagement stage.Moreover,maintaining synchronization across lifting points during construction is essential to minimize displacement differences between lifting points,particularly during the initial lifting stage.

关 键 词：液压同步提升技术 钢连廊 数值模拟 

分 类 号：TV314[水利工程—水工结构工程]