This paper describes a new installation technique for installation of ventilation system at large deformation position of structure.Compared with traditional technique,the new technique could better satisfy the large displacement requirement of structure at position with large deformation,could reach higher aseismic grade and has simpler process,lower cost and higher efficiency.New Kunming Airport terminal building project is taken as an example to describe fabrication,installation form and position layout of ventilation duct at large deformation position of crossing structure and its components,flexible connection,support and hanger,providing valuable references for similar projects.%“通风管道跨越结构大变形部位施工技术”提出了一种新型结构大变形部位通风系统安装工艺,此工艺与传统工艺相比具有更加满足结构大变形部位大位移量的要求,能够达到更高的抗震等级,工艺简单和成本低效益高等诸多优点.以昆明新机场航站楼工程的应用为例,对跨越结构大变形部通风管道及其部件,软连接和支吊架的制作、安装形式以及位置布置进行详细论述,为类似工程提供参考.
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