- 摘 要
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（1 清華大學(xué)建筑設(shè)計研究院有限公司， 北京 100084； 2 中國航空規(guī)劃建設(shè)發(fā)展有限公司， 北京 100120）
［摘要］ 對采用徑向限位滑動支座的牛河梁紅山文化遺址群Ⅱ號點保護篷鋼結(jié)構(gòu)進行了抗震性能設(shè)計，比較了不同支座形式及支撐體系對結(jié)構(gòu)整體穩(wěn)定性能的影響，同時分析了結(jié)構(gòu)的靜力延性性能，并對結(jié)構(gòu)進行了抗連續(xù)倒塌設(shè)計。分析結(jié)果表明，采用限位滑動支座不會對結(jié)構(gòu)的穩(wěn)定性能產(chǎn)生較大不利影響；支撐體系對結(jié)構(gòu)的穩(wěn)定性能影響很大，桁架下弦必須全跨布置系桿；結(jié)構(gòu)體系滿足靜力延性性能設(shè)計目標，且有很好的抗連續(xù)倒塌能力。
［關(guān)鍵詞］抗震性能設(shè)計; 滑動支座; 靜力延性性能; 抗連續(xù)倒塌
中圖分類號：TU391 文獻標識碼：A 文章編號：1002-848X(2014)01-0006-06
Performance-based design on steel structure for the protection shed of Niuheliang No.2 archaeological site
Zhao Tianwen1, Ge Jiaqi2, Yang Xiao1, Li Kaijing1
(1 Architectural Design and Research Institute of Tsinghua University Co., Ltd., Beijing 100084, China; 2 China Aviation Planning and Construction Development Co., Ltd., Beijing 100120, China)
Abstract: A methodology for seismic performance design of steel shed of Niuheliang No.2 archeological site supported by radial limit sliding bearings was described. The impacts to structure overall stability produced by different bearings and support systems were compared, the static ductility and progressive collapse prevention capacity of the main structure were also analyzed. Analysis results indicate that using the limit bearings has little adverse effect on structural performance, only the impacts of support systems are remarkable, tie bars must be lay through the span of the truss bottom chord, the designed structure satisfy the design goal of static ductility, and possess the capacity of progressive collapse prevention.
Keywords: seismic performance design; slid bearings; static ductility; progressive collapse prevention
作者簡介：趙天文，研究員，一級注冊結(jié)構(gòu)工程師，Email：adstruc@vip.163.com。
參考文獻
［1］楊霄，葛家琪，趙天文.牛河梁紅山文化遺址群Ⅱ號點保護篷結(jié)構(gòu)設(shè)計［J］.建筑結(jié)構(gòu)，2014，44（1）：1-5.
［2］葛家琪，張愛林，楊維國，等. 基于性能的大跨度鋼結(jié)構(gòu)設(shè)計研究［J］. 建筑結(jié)構(gòu)學(xué)報，2011，32（12）：29-36.
［3］GB 50011—2010建筑抗震設(shè)計規(guī)范［S］.北京：中國建筑工業(yè)出版社，2010.
［4］JGJ 3—2010高層建筑混凝土結(jié)構(gòu)技術(shù)規(guī)程［S］.北京：中國建筑工業(yè)出版社，2011.
