基于SAP2000 OAPI计算消能减震结构附加阻尼比
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（1北京市建筑设计研究院有限公司，北京100045；2清华大学土木工程系，北京100084）[摘要] 消能减震结构计算中，附加阻尼比是至关重要的参数。常用的计算方法有复模态方法、强解耦振型分解法和基于变形能的等效阻尼法等，现行建筑抗震设计规范也推荐采用基于变形能的等效阻尼法，但目前尚未有程序能实现该功能。本文采用抗震规范建议的方法，利用SAP2000软件的OAPI工具开发计算附加阻尼比的插件， 并对计算结果进行分析。[关键词] 附加阻尼比;消能减震;OAPI中图分类号：TU399 文献标识码：A 文章编号：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
