The Structural Engineer > Archive > Volume 85 (2007) > Issues > Issue 22 > National Gymnasium, Beijing Olympics: structural design of the roof
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National Gymnasium, Beijing Olympics: structural design of the roof

The National Gymnasium for the 2008 Beijing Olympics is located in the central area of the Beijing Olympic Park. It ranks among the Olympic site’s three major stadia (the other two being the National Stadium and the National Swimming Centre) but is the only one designed independently by a domestic designer. The Gymnasium consists of two parts, a Competition Hall and Training Hall. The Competition Hall has a 114m ¥ 114m roof composed of two way spanning trusses incorporating integral pre-stressed cable supports and is thought to be the largest roof of its kind in the world. This paper focuses on the structural system, design standards, pre-stress control, cable replacement and fire-prevention plus the construction process calculations and subsequent verification by model experiment.

Yang Qin, Senior engineer, Professor, Beijing Architecture Design of Institute, Beijing, China

Zhong-Yi Zhu, Senior engineer, Beijing Architecture Design of Institute, Beijing, China

Chang-Hua Ke, General engineer, Professor, Beijing Architecture Design of Institute, Beijing, China

Kai Qin, Senior engineer, Beijing Architecture Design of Institute, Beijing, China

Yi Wang, Senior engineer, Beijing Architecture Design of Institute, Beijing, China