杭州大会展中心双层展厅楼盖设计  

Floor system design for double-storey exhibition hall of Hangzhou Grand Exhibition Center

作　　者：方伟 齐国红 陈琳琳 邵楠 刘天元 孙建超 肖从真 戚晓锴 Fang Wei;Qi Guohong;Chen Linlin;Shao Nan;Liu Tianyuan;Sun Jianchao;Xiao Congzhen;Qi Xiaokai(National Engineering Research Center of Building Technology,Beijing 100013,China;China Academy of Building Research,Beijing 100013,China;Hangzhou Exhibition Town Construction Co.Ltd,Hangzhou 311227,China)

机构地区：[1]国家建筑工程技术研究中心,北京100013 [2]中国建筑科学研究院有限公司,北京100013 [3]杭州大会展中心建设运营有限公司,浙江杭州311227

出　　处：《建筑科学》2022年第5期151-157,共7页Building Science

摘　　要：杭州大会展中心6^(#)、7^(#)展厅为双层展厅。展厅范围东西向81m,南北向174m,中部柱网27m×36m,楼盖采用钢桁架+现浇钢筋桁架混凝土板的形式。通过对双层展厅预应力与钢桁架两种楼盖体系的优缺点比较,确定了项目采用钢桁架的楼盖形式。对楼盖主次桁架、楼面次梁设计中的重点及难点进行了分析。介绍了局部较高应力比杆件及受压腹杆的设计方法。为同类大跨度、重荷载双层会展楼盖结构设计提供参考,发挥钢桁架在此类结构中的显著优势。The exhibition hall of 6^(#) and 7^(#) are double-storey exhibition hall. The span of the exhibition hall is 81m from east to west and 174m from south to north with the central column distances of 27m×36m. The system of steel truss and steel-bars truss deck is adopted for the floor system. This double-storey exhibition hall adopts the floor system of steel truss through caparison between the prestressed floor system and steel truss floor system. The key points and difficulties in design of primary and secondary floor truss and floor secondary beam are analyzed. The design method of high stress ratio member and compression member is introduced. This paper can provide useful reference for the structure design of similar double-storey exhibition floor structures with large span and heavy load, so as to lead the obvious advantage of steel truss in this kind of structure.

关 键 词：双层展厅 楼盖体系 钢桁架 弹性支点 

分 类 号：TU399.3[建筑科学—结构工程]