汤启明，陈  卓
    （重庆市设计院，重庆400015）

[摘要] 介绍了跨越12m宽人防通道的高层建筑核心筒采用箱形转换层的结构设计。采用不同计算模型计算分析了箱形转换层和普通梁式转换层的受力性能。介绍了箱形转换层裂缝控制的技术措施。提出了箱形转换层结构计算和设计建议。
[关键词] 箱形转换层；梁式转换层；深受弯梁；结构设计

    Structural design for box transfer story of Chongqing International Trade Centre
    Tang Qiming,  Chen Zhuo
    ( Design Institute of Chongqing, Chongqing 400015, China)

Abstract: Structural design for box transfer storey ofhigh-rise building core tube across 12 meters wide civil air routes is introduced. Based on computation result of different calculation model, behaviors of box transfer story and common beam transfer story are analyzed. Technical measures of crack control of box transfer story are introduced. Some suggestions of structural calculation and design of box transfer storey have been put forward.
Keywords: box transfer story;  beam transfer story;  deep flexural beam;   structural design