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(中國建筑設計研究院 北京 100044)
【提要】 金鼎大廈地上由2幢21層塔樓組成，地下共四層。設計中從結構合理、專業(yè)協(xié)調、便于施工并滿足業(yè)主需求等角度全面進行了基礎、地下室樓面、塔樓等的結構方案比較及優(yōu)化，對塔樓標準層樓面進深梁、懸挑鋼梯等構件也進行了優(yōu)化。塔樓采用了鋼框架鋼筋混凝土筒體結構體系，地下室樓面非預應力空心板采用了旋轉布置形式，受力合理，對于其他工程結構設計的方案選擇具有參考價值。
【關鍵詞】 方案比較 空心板 混合結構 組合梁 懸挑鋼梯
Optimization and Comparison of Different Structural Schemes in Jinding Building Design/
Wang Zai，Ren Qingying，Zhang Xiaoyu，F(xiàn)an Yuchen，Shao Jun，F(xiàn)ang Dengyi(China Architecture Design & Research Group,Beijing 100044,China)
Abstract:Jinding Building is composed of two towers above the ground and a fourlevel basement. The design of foundation,basement floor,structural schemes of the towers is optimized based on structural reasonability,cooperation among different specialities, convenience for construction and satisfaction of the owner. The design of gravity beams of typical level and cantilevered steel stairs is also optimized from different points of view. Steel framereinforced concrete corewall structural system is promising in highstorey building. The spiral arrangement of the tube fillers is reasonable for load transfer of basement hollow concrete floor. The conclusion is useful for other projects.
Keywords:comparison of structural schemes,hollow concrete floor system; mixed structure; composite steel and concrete beam; cantilevered steel stair