奧體體育場加固改造工程消能減震分析與設(shè)計
李文峰，苗啟松，覃陽，劉立杰
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(北京市建筑設(shè)計研究院，100045)［提要］針對消能技術(shù)在奧林匹克體育中心體育場加固改造工程中的應(yīng)用。討論了消能減震結(jié)構(gòu)的分析及設(shè)計方法和設(shè)計思路、液體粘滯阻尼器的參數(shù)選擇、布置方式、消能結(jié)構(gòu)構(gòu)件設(shè)計方法等問題。根據(jù)不同加固方案的對比分析，在抗震加固工程中采用消能減震裝置可明顯減小地震力，并減小新加支撐附加給既有結(jié)構(gòu)的地震力。消能減震設(shè)計宜根據(jù)建筑功能要求、結(jié)構(gòu)變形形式布置消能裝置。［關(guān)鍵詞］抗震加固；消能減震技術(shù)；液體粘滯阻尼器Application of Seismic Reduction Technology in Aseismic Strengthening for Stadium of Olympic Center/Li Wenfeng, Miao Qisong, Qin Yang, Lu Lijie(Beijing Institute of Architectural Design, Beijing 100045, China)Abstract: Application of energy dissipation device in Stadium of Olympic Center is introduced. Method of structural analysis and design of structure with energy dissipation device, determination of device parameters, scheme of installation, design method of components are discussed. By results of contrast between different retrofit schemes, it can be concluded that application in structural retrofit can reduce structural seismic response and the internal seismic force of component from brace newly-added significantly. In energy dissipation design of structure, the layout energy dissipation device should be planned according to demand of architectural demand and structural deformation type.Keywords: seismic strengthening; seismic energy dissipation technology; viscous damper
