援柬埔寨体育场斜拉柔性索桁结构模型试验与工程应用

Model Test and Engineering Application of Cable-stayed Flexible Cable-truss Structure for Aided Cambodia Stadium

援柬埔寨体育场罩棚采用斜拉柔性索桁结构,该结构自重小、刚度大、跨度大,造型新颖,构件数量和类型多,设计要求高,属于新型结构体系。基于以上特点,在工程实施前进行了1∶15模型试验,对本工程新型索杆张力结构开展试验研究。通过理论计算分析和模型试验,形成一套合理有效的张拉成型控制技术,保证结构成型和初始预张力精度,为工程实施提供技术支撑。

Cable-stayed flexible cable truss structure is adopted for the canopy of Cambodian Stadium.The structure belongs to a new structural system,with the characteristics of light weight,great stiffness,large span,novel shape,large number and types of components,and high design requirements.Based on the above characteristics,a 1∶15 model test was carried out to study the new cable strut tension structure before the implementation of the project.Through theoretical calculation analysis and model tests,a set of reasonable and effective tension forming control technology is formed to ensure the accuracy of structure geometry and initial pretension,which provide technical support for project implementation.