中原文旅城欢乐世界一期雪世界高区结构设计  

Structural design of high area of Zhongyuan Cultural and Tourism City Happy World Phase Ⅰ

作　　者：李滨飞 王昊 徐旭东 孟少宾 郭风建 祝乐琪 LI Binfei;WANG Hao;XU Xudong;MENG Shaobin;GUO Fengjian;ZHU Leqi(Architectural Design and Research Institute Tsinghua University Co.,Ltd.,Beijing 100084,China;Sunac(Beijing)Cultural Tourism Planning Research Institute Co.,Ltd.,Beijing 100028,China)

机构地区：[1]清华大学建筑设计研究院有限公司,北京100084 [2]融创(北京)文化旅游规划研究院有限公司,北京100028

出　　处：《建筑结构》2024年第9期35-42,共8页Building Structure

摘　　要：中原文旅城欢乐世界一期雪世界高区结构体系采用巨型钢框架,存在结构扭转不规则、楼板缺失、大悬挑、竖向构件间断及钢桁架平台为重载大跨钢结构等不规则情况和设计难点。设计中采用基于性能的抗震设计方法,根据构件的重要程度采用不同的性能目标。4个巨型框架柱为支撑框架结构,其支撑采用屈曲约束支撑,使结构在大震作用下形成良好的屈服机制和耗能能力。对结构进行小震反应谱法弹性分析、弹性时程分析、中震弹性分析以及大震弹塑性分析。结果表明,结构整体和构件的抗震性能均能达到设计的预期目标;巨型钢框架结构体系较好地适应了本工程的实际情况,可供类似项目在选择结构体系时参考。The structural system of high area of Zhongyuan Cultural and Tourism City Happy World Phase Ⅰadopts giant steel frame,and there are irregularities and design difficulties such as structural torsion irregularities,missing floor slabs,large cantilever,vertical members discontinuity,and the steel truss platform is a heavy⁃duty large⁃span steel structure.Performance⁃based seismic design method was adopted in design and different performance objectives were adopted according to the importance of components.Four maga frame⁃columns are braced frame structures,and buckling restrained braces are used as braces,which makes the structure form a good yield mechanism and energy dissipation capacity under large earthquake.The elastic analysis of small earthquakes by response spectrum method,elastic time history analysis,elastic analysis of moderate earthquakes,and elastoplastic analysis of large earthquakes for the structure were carried out.The results that the seismic performance of the whole structure and its members can reach the expected goals of the design.The giant steel frame structural system adapts well to the actual situation of the project and can be used as a reference for similar projects.

关 键 词：滑道 巨型钢框架 重载大跨钢结构 屈曲约束支撑 屈服机制 

分 类 号：TU393.2[建筑科学—结构工程]