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鄭永峰1， 陶化慶1， 魏曉東1， 徐新生2
（1 山東省建筑設(shè)計研究院，濟(jì)南 250001；2 濟(jì)南大學(xué)，濟(jì)南 250022）[摘要] 介紹了內(nèi)蒙古某辦公樓在抗震加固設(shè)計過程中遇到的問題及解決方法。通過增設(shè)鋼支撐及加大地下一層柱截面的方法，解決原結(jié)構(gòu)因剪力墻設(shè)置不當(dāng)，結(jié)構(gòu)剛度分布不對稱造成的地震作用下結(jié)構(gòu)層間位移超限，扭轉(zhuǎn)效應(yīng)過大的問題。對承載力不滿足規(guī)范要求的梁、柱采用外粘型鋼法進(jìn)行加固。針對加固改造工程中應(yīng)注意的設(shè)計方面的問題提出建議，供類似工程設(shè)計時借鑒參考。
[關(guān)鍵詞] 抗震加固；結(jié)構(gòu)體系調(diào)整；鋼支撐；外粘型鋼加固
中圖分類號：TU243. 2,TU352.1 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2012) Sl-0574-04Seismic strengthening design of an office building in Inner
Zheng Yongfeng1, Tao Huaqing1, Wei Xiaodong1, Xu Xinsheng2
(1 Shandong Provincial Architectural Design Institute, Jinan 250001, China; 2 University of Jinan, Jinan 250022, China)Abstract: In the seismic strengtherung design of an office building in Inner, the problems and solutions about plan were introduced. Because of the shear walls in existing structure on incorrect position and the unsymmetrical structural rigidity distribution, the relative storey displacement overstepped the limit of code and big torsional effect occurred under the earthquake action. The above problems were resolved by composite steel brace and increasing the section of columns of the first story underground. The beams and columns which can't meet the code requirements were strengthened with extemally bonded steel frame. Some suggestions were put forward about design, as the reference of the similar project.
Keywords: seismic strengthening; buildings; structural system adjustment; composite steel brace; structure member; extemally bonded steel frame
