国家体育场“鸟巢”支撑塔架施工测量

Construction surveying for bracketing structures in the national stadium

国家体育场是2008年北京第29届奥运会的主体育场。其屋盖钢结构跨度大,覆盖面积也大,受力非常复杂。在施工过程中,主桁架搁置在78个临时支撑塔架上,支撑塔架的施工测量就成了整个钢结构施工的关键。

The National Stadium is the main stadium for the Beijing 2008 Olympic Games,and the site for the opening and closing ceremonies,track and field events and soccer finals.The super long span steel structure covers a large area and bears complex loads.The main trusses were fixed on 78 temporary bracketing structures during installation,so the construction surveying for bracketing structures becomes the key in the whole construction.The paper introduced the surveying process in detail.