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(1 中國(guó)中元國(guó)際工程有限公司, 北京 100089; 2 中國(guó)建筑西南設(shè)計(jì)研究院有限公司, 成都 610042;3 北京建筑大學(xué)土木與交通工程學(xué)院, 北京 100044)

摘要: 以 RC 框架-核心筒高層隔震結(jié)構(gòu)為研究對(duì)象,基于《 建筑抗震設(shè)計(jì)規(guī)范》 ( GB 50011—2010) 和《 建筑隔震設(shè)計(jì)標(biāo)準(zhǔn)》 (GB / T 51408—2021)兩種規(guī)范,研究了兩種規(guī)范不同隔震設(shè)計(jì)方法對(duì)結(jié)構(gòu)關(guān)鍵設(shè)計(jì)指標(biāo)的影響,明確了《建筑隔震設(shè)計(jì)標(biāo)準(zhǔn)》 (GB / T 51408—2021)隔震設(shè)計(jì)方法的設(shè)計(jì)控制指標(biāo),對(duì)比分析了兩種規(guī)范設(shè)計(jì)的隔震結(jié)構(gòu)的關(guān)鍵結(jié)構(gòu)響應(yīng). 研究結(jié)果表明,《 建筑隔震設(shè)計(jì)標(biāo)準(zhǔn)》 ( GB / T 51408—2021) 隔震設(shè)計(jì)方法的控制指標(biāo)為層間位移角. 對(duì)于相同的上部結(jié)構(gòu)和隔震方案,與《 建筑抗震設(shè)計(jì)規(guī)范》 ( GB 50011—2010) 的隔震設(shè)計(jì)方法相比,采用《建筑隔震設(shè)計(jì)標(biāo)準(zhǔn)》 ( GB / T 51408—2021) 隔震設(shè)計(jì)方法,底部剪力比由 0. 377 減小到 0. 342,中震作用下最大層間位移角降低 12. 0%,大震作用下最大層間位移角降低 8. 5%. 采用《建筑隔震設(shè)計(jì)標(biāo)準(zhǔn)》 ( GB / T 51408—2021) 進(jìn)行結(jié)構(gòu)設(shè)計(jì)時(shí),上部結(jié)構(gòu)可以采用更柔的設(shè)計(jì)方案.

關(guān)鍵詞: 高層隔震結(jié)構(gòu); 框架-核心筒; 陋震設(shè)計(jì)方法; 底部剪力比; 層間位移角

中圖分類(lèi)號(hào):TU352. 1+2 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2022)05-0088-05DOI:10. 19701 / j. jzjg. CSWADI2010

Comparison on seismic isolation design methods of RC frame-core tube isolation structure based on"Code for seismic design of buildings" and "Standard for seismic isolation design of building"

LIU Lide1, WEI Zhong2, FU Kanlin2, LI Aiqun3, ZENG Demin3, XIE Linlin3, LI Yafei2

(1 China IPPR International Engineering Co., Ltd., Beijing 100089, China; 2 China Southwest ArchitecturalDesign and Research Institute Co., Ltd., Chengdu 610042, China; 3 School of Civil and Transportation Engineering,Beijing University of Civil Engineering and Architecture, Beijing 100044, China)

Abstract: Taking the RC frame-core tube high-rise seismic isolation structure as the research object, based on the " Codefor seismic design of buildings " ( GB 50011—2010) and " Standards for seismic isolation design of buildings " ( GB / T51408—2021) these two codes, the influence of different seismic isolation design methods in two codes on the key designindicators of the structure were studied. The design control indicators of the seismic isolation design methods in " Standardsfor seismic isolation design of buildings" (GB / T 51408—2021) were clarified. The key structural response of the designedseismic isolation structure of the two codes were compared and analyzed. The research results show that the control index ofthe seismic isolation design method of " Standards for seismic isolation design of buildings" ( GB / T 51408—2021) is theinter-story drift ratio. For the same superstructure and seismic isolation scheme, compared with the seismic isolation designmethod of " Code for seismic design of buildings" ( GB 50011—2010) , adopting the seismic isolation design method of" Standards for seismic isolation design of buildings" (GB / T 51408—2021) , the base shear ratio decreased from 0. 377 to0. 342, the maximum inter-story drift ratio decreased by 12. 0% under moderate earthquake, and the maximum inter-storydrift ratio decreased by 8. 5% under large earthquake. When " Standards for seismic isolation design of buildings" ( GB / T51408—2021) is adopted for structural design, a more flexible design scheme can be adopted for the superstructure.

Keywords:high-rise seismic isolation structure; frame-core tube; seismic isolation design method; base shear ratio;inter-story drift ratio

第一作者:劉立德,碩士,工程師,主要從事工程設(shè)計(jì)及建筑結(jié)構(gòu)減隔震研究,Email:lukixwr@ sina. com.

[引用本文] 劉立德,魏忠, 付刊林,等. 基于抗規(guī)和隔規(guī)的 RC 框架-核心筒隔震結(jié)構(gòu)設(shè)計(jì)方法對(duì)比研究[ J] . 建筑結(jié)構(gòu),2022,52(5) :88-92. LIU Lide,WEI Zhong,FU Kanlin,et al. Comparison on seismic isolation design methods ofRC frame-core tube isolation structure based on " Code for seismic design of buildings" and " Standard for seismic isolationdesign of building" [ J] . Building Structure,2022,52(5) :88-92.