合肥新桥国际机场T2航站楼结构设计
Structural design of Hefei Xinqiao International Airport Terminal 2
方卫 1周健 1胡众 2薛荣军 1丁霖 1崔家春 1顾朝阳 1肖键1
作者信息
- 1. 华东建筑设计研究院有限公司,上海 200002
- 2. 合肥新桥国际机场改扩建工程建设指挥部,合肥 230086;合肥市建筑质量安全监督站,合肥 230061
- 折叠
摘要
新建合肥新桥国际机场T2 航站楼采用下部为混凝土结构、顶部屋盖为大跨钢结构的结构形式,结构设计基于建筑特点和场地条件展开.介绍了基于场地表面起伏较大、需进行大面积回填条件下的桩基选型过程和桩基施工流程,详细阐述了基于建筑结构一体化理念的大跨屋盖结构体系及其支承结构的确定过程.根据航站楼的功能特点,通过比选确定主楼采用速度型减震装置的消能减震方案,提高结构的耗能能力并实现良好的抗震性能.通过抗连续倒塌分析和抗火分析确定钢屋盖及其支撑柱的防护方法,对钢管混凝土柱与下部钢筋混凝土柱等截面的连接节点进行了数值分析,最后对屋盖钢桁架的管-管相交节点确定原则进行了介绍.结果表明:该航站楼结构设计可靠,满足各项要求.
Abstract
The newly built Hefei Xinqiao International Airport Terminal 2 adopts a structural form with a concrete structure at the bottom and a large-span steel structure at the roof.The structural design was based on the building characteristics and site conditions.The process of pile foundation selection and construction procedure under conditions requiring large-scale backfilling due to significant surface undulations of the site were introduced.The determination process of the large-span roof structure system and its supporting structure based on the concept of building structural integration was elaborated in detail.Based on the functional characteristics of the terminal building,the energy dissipation and seismic reduction scheme of the main building using velocity-type damping device was determined through comparison,which improved the energy dissipation capacity of the structure and achieves good seismic performance.The protection methods for steel roofs and their supporting columns were determined through progressive collapse analysis and anti fire analysis.A numerical analysis was conducted on the connection between concrete-filled steel tube column reinforced concrete column with equal cross-sections.Finally,the principles for determining the pipe-to-pipe connection of the roof steel truss were introduced.The results show that the structure design of the terminal is reliable and meets all requirements.
关键词
合肥新桥国际机场/建筑结构一体化/大跨钢结构/消能减震/抗连续倒塌/钢结构抗火设计Key words
Hefei Xinqiao International Airport/integration of architecture and structure/large-span steel structure/energy dissipation and absorption/progressive collapse/fire resistant design of steel structures引用本文复制引用
出版年
2024
NETL
NSTL
万方数据