地铁车辆段上盖的全框支剪力墙结构设计探讨  

DISCUSSION ON FULLY FRAME-SUPPORTED SHEAR WALL STRUCTURE ON UPPER PART OF METRO DEPOT

作　　者：周建辉 ZHOU Jian-hui(Foshan Rail Transit Design and Research Institute Co.,Ltd.,528000,Foshan,Guangdong,China)

机构地区：[1]佛山轨道交通设计研究院有限公司,广东佛山528000

出　　处：《建筑技术》2024年第3期281-284,共4页Architecture Technology

摘　　要：根据地铁车辆段上盖全框支剪力墙结构设计实践,提出该结构按现行规范设计存在的问题,包括重力二阶效应验算,周期折减系数影响,框支柱剪力调整和厚板设计验算等问题。针对上述问题,建议重力二阶效应验算采用屈曲因子不小于20作为不考虑条件;少砌体墙的(框支)框架层考虑周期折减系数的影响,对(框支)框架层楼层剪力作折减;对于特一级或一级的框支柱的弯矩或剪力调整系数下调,避免调整后剪力远大于中震剪力的不合理情况;盖上剪力墙对厚板的冲切验算用作图法验算。Based on the practice of structural design for fully frame-supported shear wall structure on upper part of metro depot,this paper addresses the existing issues in the current design codes.These issues include the verification of second-order effects of gravity,the influence of period time deduction factors,adjustments of shear forces in frame-supporting column,and the design verification of thick plates.A comprehensive analysis and summary of these issues are provided.The verification of second-order effects of gravity should adopt a buckling factor≥20 as the condition for exclusion.The influence of period time deduction factors should be considered for frame-supported and frame layers with fewer masonry walls,reducing the shear forces at these levels.Adjustments should be made to the moment or shear force adjustment factors for special first-class or first-class frame-supporting column to avoid situations where adjusted shear forces are significantly larger than the seismic shear forces.Graphical methods are proposed for punching shear calculation of thick slab in the shear walls.

关 键 词：全框支剪力墙 框支柱 转换厚板 重力二阶效应 周期折减 剪力调整 

分 类 号：TU318.2[建筑科学—结构工程]