高大幕墙钢骨架设计中的幕墙结构变形设计

STRUCTURE DEFORMATION DESIGN IN HIGH AND BIG CURTAIN WALL STEEL SKELETON DESIGN

幕墙变形设计是幕墙设计时一个非常重要的考虑要点,也是决定幕墙设计质量的关键因素。以某工程项目南北中厅立面高大幕墙钢架设计为例,从宏观结构传力体系、中观构件截面与板块分割和微观节点构造3个维度分析了与其连接的主体构件承载力和刚度、位移产生、传导、隔断、吸纳和释放问题等。运用Midas计算软件进行结构分析,通过原方案与改进方案的对比,验证了改进方案的合理性,从而充分论证了幕墙结构概念设计在解决幕墙变形问题中的重要性,为幕墙结构设计和专业规范制定提供参考与依据。

Curtain wall deformation design is a very important point to be considered in curtain wall design,and it is also a key factor influencing the curtain wall design quality.Taking the high and big curtain wall steel frame design of the south-to-north atrium facade,this paper analyzed the bearing capacity and rigidity of main components connected to the curtain wall,as well as generation,transition,isolation,absorption and release of displacement on three dimensions,including macro structure force transfer,meso component cross-section and unit division,and micro node.Midas software was used for structure analysis and comparison between original scheme and improved scheme.The reasonability of the improved scheme was verified and the importance of curtain wall structure concept design in solving the deformation problem of curtain wall,providing reference and basis for curtain wall structure design and drafting of standard specifications.