基于SAP2000 OAPI計算消能減震結(jié)構(gòu)附加阻尼比
萬金國1,2, 閤東東1,2, 李文峰1, 苗啟松1
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（1北京市建筑設(shè)計研究院有限公司，北京100045；2清華大學土木工程系，北京100084）[摘要] 消能減震結(jié)構(gòu)計算中，附加阻尼比是至關(guān)重要的參數(shù)。常用的計算方法有復(fù)模態(tài)方法、強解耦振型分解法和基于變形能的等效阻尼法等，現(xiàn)行建筑抗震設(shè)計規(guī)范也推薦采用基于變形能的等效阻尼法，但目前尚未有程序能實現(xiàn)該功能。本文采用抗震規(guī)范建議的方法，利用SAP2000軟件的OAPI工具開發(fā)計算附加阻尼比的插件， 并對計算結(jié)果進行分析。[關(guān)鍵詞] 附加阻尼比;消能減震;OAPI中圖分類號：TU399 文獻標識碼：A 文章編號：1002-848X(2013)S1-0850-04Calculation of additional damping ratio for structures with energy dissipation devices by SAP2000’ OAPIWan Jinguo1,2, Ge Dongdong1,2, Li Wenfeng1, Miao Qisong1(1 Beijing Institute of Architectural Design CO., LTD., Beijing 100045, China; 2 Department of Civil Engineering, Tsinghua University, Beijing 100084, China)Abstract: The additional damping ratio is very important for calculation of structures with energy dissipation devices. The complex modal method, the force decoupling method and the equivalent damping method based on deformation energy are often used, the equivalent damping method based on deformation energy is also recommended by the current Chinese seismic design code, while there is no software can calculate the additional damping ratio. The paper develops the plug-in using the tool of OAPI supplied by SAP2000 to calculate the additional damping ratio using the method based on deformation energy, and at last its accuracy is verified.Keywords: additional damping ratio; energy dissipation; OAPI
