（北京市建筑设计研究院有限公司， 北京 100045）

［摘要］国家速滑馆是北京2022年冬奥会的标志性场馆，屋盖采用单层双向正交索网，外圈设巨型环桁架，支承于看台斜柱上，支承屋盖的看台斜柱采用劲性混凝土柱。着重阐述了国家速滑馆主体结构设计中的一些关键问题及相应的处理措施，包括结构的基础设计、超限情况及抗震性能化设计、大震弹塑性、巨型柱承载力计算等，为类似工程设计提供参考。

［关键词］国家速滑馆; 巨型柱； 超长结构； 基础沉降； 性能化设计； 大震弹塑性

中图分类号：TU398， TU375文献标识码：A文章编号：1002-848X(2018)20-0001-04

Major structure design of National Speed Skating Oval

Yang Yuchen， Chen Binlei， Zhu Zhongyi， Shen Li， Xi Qi， Duan Shichang，  Zhou Zhongfa， Ge Dongdong

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:The National Speed Skating Oval（NSSO）is the landmark venue of the 2022 Winter Olympic Games in Beijing. The roof of the NSSO adopts a single layer two-way orthogonal cable net. The giant ring truss is placed in the outer ring, which is supported on the grandstand inclined column. The grandstand inclined column using to support the roof is the reinforced concrete column. Some key problems and corresponding treatment measures in the design of the main structure of NSSO were expounded, including structure foundation design, over limit situation, seismic performance-based design, elastoplasticity under rare earthquake, calculation of the bearing capacity of the giant column and so on. It provides a reference for similar engineering design.

Keywords:National Speed Skating Oval; giant column; overlength structure; foundation settlement; performance-based design; elastoplasticity under rare earthquake

作者简介：杨育臣，硕士，高级工程师，Email：yangyuchen1120@126.com。