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西安某空間曲面混合框架結(jié)構(gòu)設(shè)計與分析
徐 雯1, 李 剛2, 房 剛1
摘 要

(1 西安市建筑設(shè)計研究院有限公司, 西安 710054; 2 西安建筑科技大學設(shè)計研究總院, 西安 710055)

摘要: 西咸空港綜合保稅區(qū)事務(wù)服務(wù)辦理中心結(jié)構(gòu)高度 29m,為不規(guī)則空間曲面混合框架結(jié)構(gòu). 采用一系列沿球面經(jīng)線放射狀布置的箱形曲線鋼管承重鋼肋,實現(xiàn)了建筑空間曲面造型;利用屈曲約束支撐靈活布置的特點,解決了南北建筑不規(guī)則平面的剛度不均勻問題;采用金屬摩擦擺全向滑動支座,解決了南北建筑獨立單元地震作用下相互影響問題. 采用 YJK 和 MIDAS Gen 軟件分別對結(jié)構(gòu)進行小震彈性及中震彈性、中震不屈服分析. 結(jié)果表明,結(jié)構(gòu)受力性能滿足要求,可以達到抗震性能的設(shè)計目標.

關(guān)鍵詞: 空間曲面混合框架結(jié)構(gòu); 曲面肋梁; 屈曲約束支撐; 滑動支座; 抗震設(shè)計

中圖分類號:TU318+. 2 文獻標志碼:A 文章編號:1002-848X(2023)11-0007-06

DOI:10. 19701 / j. jzjg. 20201576

Design and analysis of composite frame structure of a space curved surface in Xi’an

XU Wen1, LI Gang2, FANG Gang1

(1 Xi’an Architectural Design and Research Institute Co. , Ltd. , Xi’an 710054, China;2 Design & Research Institute of Xi’an University of Architecture & Technology, Xi’an 710055, China)

Abstract: The structure of business service center of Xi’an Airport Comprehensive Bonded Zone is 29m high, which is acomposite frame structure of space curved surface. A series of load-bearing steel ribs with box curves arranged radiallyalong the spherical longitude line were adopted to realize the curved shape of building space. The flexible arrangement ofbuckling restrained brace was utilized to solve the problem of uneven stiffness of irregular planes in north and southbuildings. The omnidirectional sliding bearing with metal friction pendulum was adopted to solve the problem of theinteraction between the north and south building independent units under earthquake action. YJK and MIDAS Gen softwarewere used to carry out analysis of the small earthquake elasticity, medium earthquake elasticity and medium earthquakenon-yield of the structure. The results show that the mechanical performance of the structure meets the requirements and thedesign goal of seismic performance can be achieved.

Keywords:composite frame structure of space curved surface; curved ribbed beam; buckling restrained brace; slidingbearing; seismic design

第一作者:徐雯,學士,高級工程師,一級注冊結(jié)構(gòu)工程師,主要從事建筑結(jié)構(gòu)設(shè)計及復雜結(jié)構(gòu)研究工作,Email:602019649@qq. com.

[引用本文] 徐雯,李剛,房剛. 西安某空間曲面混合框架結(jié)構(gòu)設(shè)計與分析[J]. 建筑結(jié)構(gòu),2023,53(11):7-12. XUWen,LI Gang,FANG Gang. Design and analysis of composite frame structure of space curved surface in Xi’ an [ J].Building Structure,2023,53(11):7-12.

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