摘要
某航天科技馆项目包含左右两栋单体,均采用现浇钢筋混凝土框架结构体系。为满足建筑使用功能需求,航天科技馆左塔入口上方设有悬挑楼盖,悬挑跨度约18 m,结构采用钢悬挑桁架实现;航天科技馆右塔设有球幕影院,影院上空形成大跨屋盖,最大跨度达35 m,采用钢梁+钢筋桁架楼承板组合楼盖。介绍了航天科技馆左右两栋单体结构体系的构成,分析了大悬挑桁架、大跨度屋盖等结构设计的重点、难点问题,并采取了针对性的加强措施,保证了结构的安全,对其他同类型项目具有一定的参考价值。
An aerospace science and technology museum project consists of two individual buildings,both of which adopt a cast-in-place reinforced concrete frame structure system.To meet the functional requirements of the building,there is a cantilever floor above the entrance of the left tower of the Aerospace Science and Technology Museum,with a cantilever span of about 18m,and the structure is achieved using steel cantilever trusses;the right tower of the Aerospace Science and Technology Museum is equipped with a ball screen cinema,which forms a large span roof over the cinema,with a maximum span of 35m.It adopts a combination of steel beams and steel truss floor support plates.This article introduces the composition of the left and right individual structural systems of the Aerospace Science and Technology Museum,analyzes the key and difficult issues in the design of structures such as large cantilever trusses and large-span roofs,and takes targeted strengthening measures to ensure the safety of the structure.It has certain reference value for other similar projects.
作者
许鸿珊
Xu Hongshan(Hongkong Huayi Design Consultants(Shenzhen)Co.,Ltd.,Shenzhen Guangdong 518000,China)
出处
《山西建筑》
2023年第23期67-70,74,共5页
Shanxi Architecture
关键词
结构设计
大跨度悬挑桁架
弹塑性时程分析
大跨度屋盖
structural design
large span cantilever truss
elastoplastic time history analysis
large span roof
