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（中國(guó)建筑西南設(shè)計(jì)研究院有限公司， 成都 610041）

［摘要］某機(jī)場(chǎng)航站樓大廳為超長(zhǎng)混凝土框架結(jié)構(gòu)體系，主要柱網(wǎng)尺寸為9m×9m和15-888m×18m。對(duì)于9m×9m軸網(wǎng)的大跨度區(qū)域，設(shè)置后張直線(xiàn)無(wú)粘結(jié)預(yù)應(yīng)力筋，用于抵抗由于結(jié)構(gòu)超長(zhǎng)產(chǎn)生的混凝土收縮應(yīng)力和溫度應(yīng)力；對(duì)于15-888m×18m軸網(wǎng)的大跨度區(qū)域，設(shè)置后張曲線(xiàn)有粘結(jié)預(yù)應(yīng)力筋，用于提高梁的承載力，并滿(mǎn)足梁的正常使用極限狀態(tài)要求，同時(shí)也解決由于結(jié)構(gòu)超長(zhǎng)產(chǎn)生的混凝土收縮應(yīng)力和溫度應(yīng)力。

［關(guān)鍵詞］機(jī)場(chǎng)航站樓； 超長(zhǎng)框架結(jié)構(gòu)； 大跨度； 后張預(yù)應(yīng)力； 溫度應(yīng)力

中圖分類(lèi)號(hào)：TU378-4文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002848X(2018)01-0001-04

Application of prestress technique in structural design of an airport terminal hall

Zhu Jianfu, Xiong Xiaolin, Feng Yuan, Wu Xiaobin, Chen Zhiqiang, Yi Dan

(China Southwest Architectural Design and Research Institute Co., Ltd.， Chengdu 610041， China)

Abstract:An airport terminal hall is super-long concrete frame structural system  with the main column grid sizes of 9m×9m and 15-888m×18m. In 9m×9m column grid size area with large-span, straight unbonded post-tensioned prestressed tendons are set to resist concrete shrinkage and temperature stresses due to the super-long structure. In 15-888m×18m column grid size area with large-span, bonded post-tensioned prestressed tendons are set to improve bearing capacity of beams, which meets the requirement of beams in serviceability limit state and solves the problems of shrinkage stress and temperature stress of concrete due to super-long structure.

Keywords:airport terminal hall; super-long frame structure; large-span; post-tensioned prestress; temperature stress

作者簡(jiǎn)介：朱建甫，碩士，高級(jí)工程師，一級(jí)注冊(cè)結(jié)構(gòu)工程師，Email:crazyzjf@163.com。