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(中南建筑設計院股份有限公司, 武漢 430071)
[摘要]山東省科技館新館為特大型科技展館,屬于特別不規(guī)則的超限高層建筑。通過方案比選,采用了“鋼筋混凝土框架-屈曲約束支撐(BRB)”結(jié)構(gòu)體系。通過設置BRB,既滿足控制扭轉(zhuǎn)需要,又使結(jié)構(gòu)成為消能減震建筑,提高結(jié)構(gòu)抗震性能。除基礎、地下室和上部結(jié)構(gòu)設計外,重點分析了BRB設置的原則、位置以及型號,并對其進行了優(yōu)化設計。通過詳細的抗震性能分析和構(gòu)造設計,確保結(jié)構(gòu)達到預定的抗震性能目標;并針對夾層的影響、BRB實際減震效果,做了專題研究論證。
[關鍵詞]山東省科技館新館; 鋼筋混凝土框架; 屈曲約束支撐; 超限高層建筑; 消能減震; 抗震性能設計
中圖分類號:TU398文獻標識碼:A文章編號:1002-848X(2020)08-0106-07
Structural design and analysis of new Shandong Science and Technology Museum
CHEN Xiaoqiang, LI Hongsheng, CHEN Yanzhou, CHEN Yuankun, ZHAO Jianchao,LI Xiaojin, SUN Wei, CHEN Wei
(Central-South Architectural Design Institute Co., Ltd., Wuhan 430071, China)
Abstract:The new Shandong Science and Technology Museum is a super-large science and technology exhibition hall, which belongs to a special irregular out-of-code high-rise building. Through comparison and selection of structural schemes, the structural system of reinforced concrete frame and buckling-restrained brace (BRB) was adopted. BRB can make the structure meet the needs of controlling torsion, create an energy dissipation building, and improve the seismic performance of the structure. In addition to the design of the foundation, basement and superstructure, the principle, location and model of the BRB settings were analyzed, and the optimized design was performed. Through detailed seismic performance analysis and structural design, the structure could achieve the predetermined seismic performance target, and a special study and demonstration was conducted on the impact of the interlayer and the actual seismic dissipation effect of BRB.
Keywords: new Shandong Science and Technology Museum; reinforced concrete frame structure; buckling-restrained brace; out-of-code high-rise building; energy dissipation; performance-based seismic design
作者簡介:陳曉強,博士,高級工程師,Email:17374932@qq.com。