（北京市建筑设计研究院有限公司， 北京 100045）

［摘要］北京新机场总建筑面积约143万m2，包括航站楼、停车楼、综合服务楼，航站楼平面为五角星形，南北长996m，东西宽1 144m，顶点标高约为50m，主体结构为钢筋混凝土框架结构，核心区采用层间隔震技术。屋盖及支承系统采用钢结构，屋盖投影面积35万m2，分为中央大厅和指廊。中央大厅部分屋盖由C形柱、支撑筒、北侧幕墙支撑框架、钢管柱和其他幕墙柱支承。指廊由钢管柱和幕墙柱支承，屋盖为自由曲面，结构形式为网架和桁架，围护系统为带铝合金装饰板的直立锁边屋面。主要阐释航站楼结构设计的关键问题，包括隔震设计、复杂钢结构、结构转换、温度作用对主体结构的影响、高铁穿越航站区对结构设计的影响、桩筏基础差异沉降变形控制设计与分析。

［关键词］北京新机场航站楼； 隔震设计； 复杂钢结构； 结构转换； 高铁振动影响； 桩筏基础

中图分类号：TU337文献标识码：A文章编号：1002-848X(2016)17-0001-07

Design and research on terminal building of Beijing New Airport

Shu Weinong, Zhu Zhongyi, Qi Yue, Qin Kai, Zhang Lin, Sun Hongwei, Wang Zhe,  Zhou Zhongfa, Liang Chenyu, Wang Yi

(Beijing Institute of Architectural Design, Beijing 100045, China)

Abstract:Beijing New Airport covers a total floor area of 1 430 000 square meters, including terminal buildings, parking buildings and synthesis service buildings. Terminal building plane has configuration of pentagram, with north-south length of 996m, east-west width of 1 144m and vertex elevation of about 50m. The main structure is reinforced concrete frame structure, and core area adopts the interlayer seismic isolation technology. Roof and supporting system adopt steel structure with roof projection area of 350 000 square meters, and the roof is composed of the central hall and gallery. Part roof of the central hall is supported by the C-shaped columns, supporting cylinders, support frames for the curtain wall on the north side, steel tubular columns and other curtain wall supporting columns. The gallery is supported by steel tubular columns and curtain wall supporting columns. The roof has free curved surface with structural forms of grid and truss, and enclosure system is standing seam roof with aluminum alloy decorative board. Key issues in structural design of the terminal building were mainly illustrated, including the isolation design, complex steel structure, structure transformation, effect of temperature on the main structure, effect of high speed railway through the terminal area on structural design, deformation control design and analysis of pile raft foundation difference settlement.

Keywords:terminal building of Beijing New Airport; seismic isolation design; complex steel structure; structural transformation; influence of high speed railway vibration; pile raft foundation

作者简介：束伟农，硕士，教授级高工，总工程师，Email:shuweinong2@vip.sina.com。