CAJ | 학술논문

郑州新郑国际机场T2航站楼工程主楼屋盖网架为正交斜放四角锥网架体系，呈双曲面造型，长319m，宽263m，最大跨度达90m，面积约7?9万m2，通过8组四叉钢斜撑传力至主体结构型钢混凝土柱上，斜撑锥管截面规格为?（950～1600）mm ×42mm，单根最重达50?8t。网架跨度和受力体系形态国内同类建筑较为少见。屋盖网架采用“分区整体液压提升＋大悬挑分块吊装”施工技术，四叉钢斜撑采用支架滑移提升安装技术，通过深化设计、方案优化和施工质量控制，确保主楼网架结构在90d工期内顺利完成，取得较大的经济和社会效益。
정주신정국제궤장T2항참루공정주루옥개망가위정교사방사각추망가체계，정쌍곡면조형，장319m，관263m，최대과도체90m，면적약7?9만m2，통과8조사차강사탱전력지주체결구형강혼응토주상，사탱추관절면규격위?（950～1600）mm ×42mm，단근최중체50?8t。망가과도화수력체계형태국내동류건축교위소견。옥개망가채용“분구정체액압제승＋대현도분괴조장”시공기술，사차강사탱채용지가활이제승안장기술，통과심화설계、방안우화화시공질량공제，학보주루망가결구재90d공기내순리완성，취득교대적경제화사회효익。
The roof structure of main building area in Xinzheng International Airport terminal T2 is orthogonal diagonal square pyramid grid with a hyperbolic model, which is 319 meters at length and 263 meters at wide with the maximum span of 90 meters and area of 79 000 square meters. This grid structure transfers force to the steel reinforced concrete columns of the main structure through 8 groups of four?diagonal steel brace with a maximum weight of 50?8 tons, whose sectional specification of cone tube is?(950~1 600)mm × 42mm. The span of the grid and the force system are relatively rare among domestic similar architectures. This paper adopts a construction technology of partition overall hydraulic lifting and large suspended lifting in blocks for roof grid and an installation technology of sliding lifting depending on brackets for the four?diagonal steel brace. This construction technology ensures that the grid structure can be smoothly finished within a time limit of 90 days through deepening design, scheme optimization and construction quality control, achieving great economic and social benefits.