- 摘 要
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（中國建筑設(shè)計研究院，北京 100044）
［摘要］東營會展中心展館主體采用鋼筋混凝土框架結(jié)構(gòu)，基礎(chǔ)采用高強預(yù)應(yīng)力管樁基礎(chǔ)。展館長約189m，屬超長結(jié)構(gòu)，結(jié)構(gòu)設(shè)計中通過結(jié)構(gòu)計算和設(shè)置后澆帶、配置縱向構(gòu)造鋼筋和無粘結(jié)預(yù)應(yīng)力鋼筋等措施，減小了溫度作用和收縮變形對鋼筋混凝土結(jié)構(gòu)的不利影響。計算結(jié)果表明，降溫荷載在框架梁和樓板中產(chǎn)生較大拉應(yīng)力，樓板開洞部位拉應(yīng)力集中；溫度作用在框架柱中產(chǎn)生剪力和彎矩，在框架柱和基礎(chǔ)設(shè)計時必須考慮。
［關(guān)鍵詞］大跨度屋蓋；超長混凝土結(jié)構(gòu)；溫度作用
Structural design of the super long structure of Dongying Convention and Exhibition Center
Wang Qi, Zhang Shoufeng, Zhu Bingyin
(China Architecture Design & Research Group, Beijing 100044, China)
Abstract:The structural system of Dongying Convention and Exhibition Center is the reinforced concrete frame and the foundation is prestressed concrete pipe piles. The total length is about 189m which means that the structure is a super long one. The adverse effect of temperature and shrinkage strain on the structure is reduced by structural calculations, setting alter-pouring strips, deploying vertical constructional steel bars and unbonded tendons. The calculation result indicates that the following effects must be considered when designing the frame columns and foundation: the temperature-reducing loading produces a relatively big tension stress to frame beams and floors; there is tension stress concentration in the opening of the floors; shearing forces and bending moments arose in the frame columns due to the effect of the temperature.
Keywords:large-span roof; super long concrete structure; temperature effect
作者簡介：王奇，工程師，一級注冊結(jié)構(gòu)工程師，Email:wangqi@cadg.cn。
參考文獻(xiàn)
［1］張守峰，朱炳寅，何相宇，等.東營會展中心結(jié)構(gòu)設(shè)計中的關(guān)鍵技術(shù)［J］. 建筑結(jié)構(gòu),2009,39(7).
［2］GB50007—2002建筑地基基礎(chǔ)設(shè)計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2002.
［3］GB50010—2002混凝土結(jié)構(gòu)設(shè)計規(guī)范［S］. 北京：中國建筑工業(yè)出版社，2002.
［4］王鐵夢. 工程結(jié)構(gòu)裂縫控制［M］. 北京：中國建筑工業(yè)出版社，1997.
［5］范重，王大慶，唐杰，等. 唐山國際會展中心超長大跨度預(yù)應(yīng)力結(jié)構(gòu)設(shè)計［J］. 建筑結(jié)構(gòu)，2006，36(1).
