深圳北站站房下部结构计算分析与设计*
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(深圳大学建筑设计研究院, 深圳 518060)
［摘要］深圳北站站房由下部结构和上部屋盖钢结构组成，其中站房下部结构采用由圆钢管混凝土柱与工字形焊接钢梁上覆现浇钢筋混凝土板组合楼盖构成的框架结构体系。地铁5号线、平南铁路和市政道路从站房下方穿越，同时站房下部结构不仅支承着上部屋盖钢结构，也兼做高架城市轻轨4，6号线的支承结构，非常复杂。结合工程项目背景，全面介绍了站房下部结构设计要点，包括基础设计、城市轻轨支承结构设计、大跨楼盖舒适度计算控制、组合钢梁屈曲稳定计算分析、蜂窝梁结构设计等。［关键词］枢纽车站; 高架城市轻轨; 楼盖舒适度; 屈曲稳定; 蜂窝梁中图分类号：TU318，TU375 文献标识码：A 文章编号：1002-848X(2015)14-0046-06
Structural analysis and design for substructure of Shenzhen North Railway StationMeng Meili, Wu Bing, Fu Xueyi, Feng Yewen, Shao Jianwei, Liu Yunlang(The Institute of Architecture Design & Research, Shenzhen University, Shenzhen 518060, China)Abstract: Shenzhen North Railway Station consists of the substructure and steel roof superstructure. The substructure adopts structural system of circular concrete-filled tubular column, I-shaped steel beam and cast-in-place reinforced concrete composite floor. Urban subway Line 5, Pinnan Railway and urban roads go through the bottom space of the station. The complex substructure is the support of the steel roof superstructure as well as the elevated light rail train Line 4 and Line 6. Based on the project background, the key technical issues in the substructure design were introduced, such as foundation design, support structural system design of the elevated light rail train, control of the long-span floor comfort, buckling stability analysis of composite steel beam and castellated beams design.Keywords: hub station; elevated-light rail train; floor comfort; buckling stability; castellated beam
*国家自然科学基金(90715012)。作者简介：孟美莉，学士，教授级高级工程师，副总工程师，Email: 0755mml@163.com。
