不停航條件下航站樓既有連廊基礎結(jié)構(gòu)加固施工*
卜昌富，徐敏，董鴿
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（上海建工七建集團有限公司， 上海 200050）
［摘要］上海浦東國際機場T1航站樓流程改造工程中，為滿足既有連廊上部結(jié)構(gòu)加建后的承載力要求，對既有連廊首層基礎結(jié)構(gòu)進行加固。既有連廊首層凈空高度僅約為4m，加固施工的全過程中既有連廊二層、三層均處于正常運營狀態(tài)，且加固設計節(jié)點復雜，給圍護結(jié)構(gòu)施工、增設混凝土灌注樁以及首層結(jié)構(gòu)加固帶來了極大的困難。經(jīng)過現(xiàn)場實測并結(jié)合設計圖紙反復研究，采取改進施工機械、調(diào)整壓頂梁結(jié)構(gòu)設計、優(yōu)化加固節(jié)點施工流程等措施，解決了不停航條件下既有連廊基礎結(jié)構(gòu)加固施工難題，加快了工程進度，節(jié)約了工程費用，確保了基礎結(jié)構(gòu)加固過程中航站樓不停航運營的安全。［關鍵詞］航站樓; 不停航施工; 結(jié)構(gòu)加固; 節(jié)點處理中圖分類號：TU744 文獻標識碼：A 文章編號：1002-848X(2016)05-0102-05
Reinforcement construction of airport terminal's existing corridor foundation structure without suspending airBu Changfu, Xu Min, Dong Ge(Shanghai Construction No.7 Group Ltd., Shanghai 200050, China)Abstract:During reconstructing Shanghai Pudong International Airport T1 terminal, the foundation structure of first floor of existing corridor should be reinforced for requirement of bearing capacity considering construction of the superstructure of the existing corridor. The clear height of existing corridors' ground floor is only 4m high. The second and the third floor are in service during the whole progress of reinforcement construction. Considering the complex reinforcement joint design, there are great difficulties in enclosure structure construction, adding cast-in-place concrete piles and the ground floor reinforcement. Based on on-site measurement and repeated studies combined with the design drawings, measures were taken including the improvement of construction machinery, the adjustment of the structural design of top beam and construction process optimization of reinforcement joint and other measures, to solve the reinforcement construction difficulty of the existing corridors' foundation structure without suspending air. The measures accelerated construction speed, saved construction cost and ensured the safety of the terminal when the foundation structure is in reinforcement construction without suspending air.Keywords:airport terminal; construction without suspending air; structure reinforcement; joint treatment
*上海市科學技術委員會資助（13231200700）。作者簡介：卜昌富，碩士，高級工程師，Email：buchangfu0909@163.com。
