大连机场航站楼扩建工程结构设计
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（大连市建筑设计研究院有限公司，大连 116021）[摘要] 根据建筑使用功能要求，主楼采用两段式结构，下部为钢筋混凝土框架，上部为高低跨门式拱架和单跨门式拱架；超长结构采用无粘结预应力解决裂缝问题；熔岩发育地区采用柱下单桩基础，避免岩层起伏较大带来的施工难度。[关键词] 大跨门式拱架；机械成孔灌注桩；无粘结预应力中图分类号：TU378 文献标识码：A 文章编号：1002-848X（2013）S2-0276-03作者简介：张颖，高级工程师，一级注册结构工程师，Email:DLJZSJ-1@vip.163.com。Dalian airport expansion project structure designZhang Ying, Wen Yuan(Dalian Architectural Design & Research Institute Co., Ltd., Dalian 116021, China)Abstract： In accordance with the requirements of building use function, the main structure of two stages, the lower part of reinforced concrete frame, the upper part of high -low and single span arch-beam portal frame; super long structure using unbonded prestressed to solve the problem of cracks; lava development area using the column order pile foundation, avoid undulating rock formations caused by the difficulty of construction.Keywords: large-span arch-beam portal frame; mechanical hole filling pile; unbonded prestressed
