（中国中元国际工程有限公司， 北京 100089）

［摘要］柬埔寨国家体育场东西对称设置月牙形罩棚，最大悬挑跨度约65m，南北设人字形索塔，塔高99m，建筑形式新颖。罩棚体系选用了新型的斜拉-张力结构体系，针对该新型结构体系进行了形状优化和构件方案比选，并研究了施工方案的可行性以及结构抗连续倒塌能力；对索塔结构进行了塔型优化、材料及截面形式比选，对其基础以及背索方案进行了优化；根据环梁、斜柱受力特点，进行了环梁、斜柱结构选型；最后讨论了看台结构选型和优化。优化后的结构方案满足建筑使用及效果要求,结构性能优良。

［关键词］柬埔寨国家体育场； 罩棚； 结构选型； 斜拉-张力结构

中图分类号：TU393-3文献标识码：A文章编号：1002-848X(2020)01-0001-07

Selection and optimization of structural system for Morodok Techo National Stadium in the Kingdom of Cambodia

Zhang Tongyi, Zu Yizhen, Zhang Su, Meng Yongjie, Wang Wenyuan, Liu Chong

(China IPPR International Engineering Co., Ltd., Beijing 100089, China)

Abstract:Morodok Techo National Stadium in the Kingdom of Cambodia is equipped with crescent-shaped canopy symmetrically from the east to the west, with a maximum cantilever span of about 65m, and a herringbone cable tower is set up from the north to the south, with a height of 99m and a novel architectural form. A new type of cable-stayed tensile structure system was selected for the canopy system. The shape optimization and component scheme comparison were carried out for the new structural system, and the feasibility of the construction scheme and the progressive collapse resistance of the structure were studied. The tower type optimization, material and cross-section form comparison were carried out for the cable tower structure, and the foundation and back cable structural scheme were optimized. According to the mechanical features of ring beams and inclined columns, the structural system selection of ring beams and inclined columns was carried out. Finally, the selection and optimization of stand structure were discussed. The optimized structural scheme met the requirements of building use and effect, and the structural performance was excellent.

Keywords:Morodok Techo National Stadium in the Kingdom of Cambodia; canopy; selection of structural system; cable-stayed tensile structure