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(中國華西工程設計建設有限公司深圳分公司, 深圳 518029)
[摘要]東莞某大底盤單塔高層建筑為超B級高度超限高層,采用鋼筋混凝土框架-核心筒的雙重抗側體系,外圍框架柱下部采用型鋼混凝土柱。簡要介紹了項目的結構體系、結構整體設計指標,并對多程序的計算結果進行分析。整體結構及構件設計融入了性能化設計思想,主要抗側力構件滿足中震不屈服(部分構件中震彈性)設計目標,并對結構進行了大震作用下的動力彈塑性時程分析,結構各項指標滿足抗震性能化設計要求。
[關鍵詞]超限高層建筑; 型鋼混凝土柱; 抗震性能化設計; 動力彈塑性分析; 屈曲分析
中圖分類號:TU318.2 文獻標識碼:A 文章編號:1002-848X(2014)03-0034-05
Structural design of an out-of-code high-rise building in Dongguan
Liu Xuan, Liu Hongming, Chen Wei
(Shenzhen branch of China Huaxi Engineering Design & Construction Co., Ltd., Shenzhen 518029, China)
Abstract: A single-tower high-rise building with large base in Dongguan, which exceeds the height requirements of level B of the code, adopts the structural system of reinforced concrete frame-core wall with steel reinforced concrete columns at the bottom of peripheral frame columns.The structure system and the overall design indicators were briefly introduced, and the calculating results by different programs were analyzed. Performance-based design thought was evolved in the overall structure design and the component design.The main lateral force resistant components can meet the performance objectives of unyielding in the intermediate earthquake though some components still keep elastic.Dynamic elastic-plastic analysis under the rare earthquake was carried out and all the indicators can meet the requirements of performance-based seismic design.
Keywords: Out-of-code high-rise building; steel reinforced concrete column; performancebased seismic design; dynamic elastic-plastic analysis; buckling analysis
作者簡介:劉選,學士,高級工程師,一級注冊結構工程師,Email:zghuaxi@126.com。