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(中國(guó)建筑西南設(shè)計(jì)研究院有限公司，成都 610081)

［摘要］   成都雙流國(guó)際機(jī)場(chǎng)T2航站樓結(jié)構(gòu)設(shè)計(jì)中采用了超長(zhǎng)混凝土框架結(jié)構(gòu)體系，由于混凝土收縮及溫度下降的影響，在結(jié)構(gòu)中要產(chǎn)生拉應(yīng)力，并可能使結(jié)構(gòu)出現(xiàn)有害的貫通裂縫。設(shè)計(jì)中通過對(duì)樓層梁施加有粘結(jié)后張預(yù)應(yīng)力來控制結(jié)構(gòu)有害裂縫的開展。介紹了混凝土結(jié)構(gòu)的收縮應(yīng)力、溫度應(yīng)力的計(jì)算方法以及計(jì)算模型的建立情況。
［關(guān)鍵詞］   超長(zhǎng)混凝土框架結(jié)構(gòu)；   預(yù)應(yīng)力；   混凝土收縮應(yīng)力；   溫度應(yīng)力

Super-long prestressed structure of Chengdu Shuangliu International Airport T2 Terminal Building
Chen Pingyou, Xiao Kejian, Chen Zhiqiang, Wang Liwei, Zhou Zhen, Yi Dan
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China)
Abstract:The super-long concrete frame structure was adopted for Chengdu Shuangliu International Airport T2 Terminal Building. Because of the shrinkage of concrete and fall of temperature, tensile stress may appear in the concrete structure and it can make cracks come forth. The design method of bonded post-tensioned prestressed in the beams was introduced which can control the development of bad crack. The shrinkage stress and temperature stress in the concrete structure were calculated. The calculation model for the tension process of the bonded post-tensioned prestressed structure was presented.
Keywords:super-long concrete frame structure; prestressed; concrete shrinkage stress; temperature stress
作者簡(jiǎn)介：陳平友，碩士，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email：cpucpy@sina.com。

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