- 摘 要
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（1 北京未來城市設(shè)計(jì)高精尖創(chuàng)新中心， 北京 100044； 2 北京建筑大學(xué)土木與交通工程學(xué)院， 北京 100044； 3 東南大學(xué)土木工程學(xué)院， 南京 210096）
［摘要］針對高烈度區(qū)復(fù)雜高層鋼框架中心支撐結(jié)構(gòu)的抗震性能化設(shè)計(jì)進(jìn)行了研究。首先，基于PERFORM-3D對采用傳統(tǒng)抗震設(shè)計(jì)方法設(shè)計(jì)的方案進(jìn)行性能化評估。為進(jìn)一步提高結(jié)構(gòu)抗震性能，進(jìn)行了應(yīng)用金屬剪切型阻尼器的減震設(shè)計(jì)，并對阻尼器關(guān)鍵參數(shù)和沿高度布置位置的優(yōu)化選擇進(jìn)行了分析。結(jié)果表明，采用金屬剪切型阻尼器能有效控制高層結(jié)構(gòu)地震響應(yīng)，在大震下減少塑性鉸尤其是柱塑性鉸的數(shù)量，提升整體結(jié)構(gòu)的抗震性能。同時(shí)，阻尼器優(yōu)化布設(shè)可以在減震效果基本不變的情況下，使經(jīng)濟(jì)性得到一定程度提升。研究成果可為復(fù)雜高層鋼框架中心支撐結(jié)構(gòu)的設(shè)計(jì)研究提供參考。
［關(guān)鍵詞］復(fù)雜高層鋼框架中心支撐結(jié)構(gòu)； 高烈度區(qū)； PERFORM-3D； 抗震性能化設(shè)計(jì)； 金屬剪切型阻尼器
中圖分類號(hào)：TU393-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)01-0018-06
Research on performance-based seismic design of complex high-rise steel concentrically braced frame located in high seismic intensity region
Li Yuhang1,2， Li Aiqun1,2,3， Huang Zhen3， Zeng Demin1,2， Xie Linlin1,2
(1 Beijing Advanced Innovation Center for Future Urban Design， Beijing 100044， China；2 School of Civil & Transportation Engineering, Beijing University of Civil Engineering and Architecture, Beijing 100044, China； 3 School of Civil Engineering, Southeast University, Nanjing 210096, China)
Abstract:Performance-based seismic design of special high-rise steel concentrically braced frame located in high seismic intensity region was studied. Firstly, the performance evaluation of the scheme designed by the traditional seismic design method was carried out based on PERFORM-3D. In order to further improve the seismic performance of the structure, the damping design using metal shear damper was carried out, and the key parameters of the damper and the optimal selection of the position along the height were analyzed. The results show that the metal shear damper can effectively control the seismic response of high-rise structures, and it can help reduce the number of plastic hinges, especially column plastic hinges under rare earthquake to improve the seismic performance of the overall structure. At the same time, the optimized layout of the damper can improve the economy to a certain extent under the condition that the damping effect is basically unchanged. The research results can provide reference for the design and research of the complex high-rise steel concentrically braced frame.
Keywords:complex high-rise steel concentrically braced frame; high seismic intensity region; PERFORM-3D; performance-based seismic design; metal shear damper
*國家自然科學(xué)基金重點(diǎn)項(xiàng)目（51438002）。
通訊作者：李愛群，博士，教授，博士生導(dǎo)師，Email：liaiqun@bucea.edu.cn。
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