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朱可義¹   婁  宇¹   葉列平²
（1 中國電子工程設(shè)計院  北京 100840； 2 清華大學(xué)土木系  北京 100084）

[摘要] 由于建筑增層和功能改變，造成北京國際金融中心已建二層的一些框架柱的軸壓比超出規(guī)范的限值，原設(shè)計轉(zhuǎn)換梁的抗剪承載力也不能滿足規(guī)范要求。通過對比計算、試驗論證等手段對碳纖維在框架柱抗震延性加固的應(yīng)用和鋼纖維混凝土在轉(zhuǎn)換梁中的應(yīng)用進行了探索，并成功地應(yīng)用于工程中。
[關(guān)鍵詞] 抗震加固；框架柱；轉(zhuǎn)換梁；碳纖維；鋼纖維

    Structure Strenghtening Design with Adding Storey of Beijing International Financial Center
    Zhu Keyi¹, Lou Yu¹, Ye Liepjng²
    (1 China Electronics Engineering Design Institute, Beijing 100840, China;2 Tsinghua University, Beijing 100084,  China)

Abstract: The storey adding and the change of the function result in the axial compression ratio of some frame colLuuns of the built two-storey building exceeding standard limit value. The shear strength of original transition beam cannot meet the code requirements. An exploratory effort is made on the application of carbon fiber to the seismic extension strengthening of the columns, as well as the application of transition beam made of steel fiber reinforced concrete by means of compared calculation and experimental validation. Two technic are successfully adopted iIl the project of Beijing International Financial Centre.
Keywords: seismic strengthening;  frame column;  transition beam;  carbon fiber;  steel fiber