（1 清华大学建筑设计研究院有限公司，  北京 100084； 2 清华大学土木工程系，  北京 100084）

［摘要］以清华附中郑东学校体育馆为例，对预应力空心楼盖、预应力混凝土梁板楼盖、钢桁架+混凝土板楼盖及钢-混凝土组合梁楼盖等常见大跨度楼盖结构进行对比分析，并对设计要点进行论述。详细介绍了综合训练馆楼盖采用钢-混凝土组合梁大跨度楼盖和篮球馆楼盖采用钢桁架+现浇混凝土板大跨度楼盖的设计方法。针对大跨度楼盖结构存在的舒适度和振动问题进行论述，并分别提出验算及振动控制方法。

［关键词］清华附中郑东学校体育馆； 大跨度楼盖； 舒适度； 振动控制

中图分类号：TU398-9文献标识码：A文章编号：1002-848X(2020)12-0070-07

Structural design and analysis of large-span floor of Zhengdong Campus gymnasium of Affiliated Middle School of Tsinghua University

FANG Qingzhou1, LI Zhengyu1, ZHAO Jianling1, ZHANG Ziyu2, XU Liyan2

（1 Architectural Design & Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China；2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China）

Abstract:Taking Zhengdong Campus gymnasium of Affiliated Middle School of Tsinghua University as an example, common large-span floor structures were compared and analyzed, such as prestressed hollow floor, prestressed concrete beam-slab floor, steel truss + concrete slab floor and steel-concrete composite beam floor, and the key points of the design were discussed. The structural design of steel-concrete composite beam floor for the comprehensive training hall and the structural design of steel truss with casting in site concrete floor in the basketball hall were introduced in detail.The comfort and vibration problems of large-span floor structure were discussed, and the checking calculation and vibration control methods were put forward respectively.

Keywords:Zhengdong Campus gymnasium of Affiliated Middle School of Tsinghua University; large-span floor; comfort; vibration control

作者简介：房轻舟，硕士，高级工程师，一级注册结构工程师，Email: fangqingzhou@thad.com.cn。