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(中國建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院有限公司, 北京 100048)
摘要: 南昌文體中心項(xiàng)目由兩側(cè)混凝土塔樓和中部大跨鋼結(jié)構(gòu)連體桁架組成,最大跨度為 99m,存在連體結(jié)構(gòu)、樓板不連續(xù)等超限項(xiàng),是一個(gè)大跨鋼結(jié)構(gòu)超限建筑。 對(duì)大跨鋼結(jié)構(gòu)超限內(nèi)容以及超限性能化目標(biāo)進(jìn)行闡述,同時(shí)針對(duì)超限內(nèi)容,分別進(jìn)行多遇地震作用下振型分解反應(yīng)譜法計(jì)算、多遇地震作用下彈性時(shí)程補(bǔ)充驗(yàn)算,設(shè)防地震和罕遇地震作用下等效彈性振型分解反應(yīng)譜法計(jì)算以及罕遇地震作用下彈塑性計(jì)算分析。 此外,還進(jìn)行了鋼結(jié)構(gòu)的溫度作用分析以及混凝土樓蓋的舒適度分析。 分析結(jié)果表明:對(duì)大跨鋼結(jié)構(gòu)連體桁架體系的超限項(xiàng)設(shè)計(jì)可針對(duì)性加強(qiáng),整體結(jié)構(gòu)和各部分構(gòu)件在各種工況下均能滿足規(guī)范要求,結(jié)構(gòu)設(shè)計(jì)安全、可靠。
關(guān)鍵詞: 南昌文體中心; 大跨鋼結(jié)構(gòu)連體; 超限建筑; 性能化設(shè)計(jì); 鋼結(jié)構(gòu)桁架; 樓蓋舒適度; 重型熱軋 H型鋼
中圖分類號(hào):TU398?? 7 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002?848X(2022)12?0001?08
DOI:10. 19701 / j. jzjg. LS210037
Design and analysis on large?span steel structure of Nanchang Cultural and Sports Center
NIU Yongfeng, WANG Zhe, LI Jingyuan, WANG Li, YU Yinquan, HU Tianbin, LIU Zhao
(China Institute of Building Standard Design & Research Co., Ltd., Beijing 100048, China)
Abstract: The Nanchang Cultural and Sports Center project is composed of concrete towers on both sides and a large?span steel structure conjoined truss in the middle. The maximum span is 99m. There are out?of?code items such as conjoined structure and floor slab discontinuity. It is a large?span steel structure out?of?code building. The out?of?code content of large? span steel structures and the goal of out?of?code performance were explained. At the same time, for the out?of?code content,the mode shape decomposition response spectrum method calculation under frequent earthquake action,the supplementarycheck calculation of elastic time history under frequent earthquake action, equivalent elastic mode shape decompositionresponse spectrum method calculation under moderate earthquake and rare earthquake action and elastic?plastic calculation analysis under rare earthquake action were carried out respectively. In addition the temperature effect analysis of the steel structure and the comfort analysis of the concrete floor were carried out. The analysis results show that the design of out?of? code items for the large?span steel structure conjoined truss system can be strengthened in a targeted manner, the overall structure and each part of the components can meet the specification requirements under various working conditions and the structural design is safe and reliable.
Keywords:Nanchang Cultural and Sports Center; large?span steel structure conjoined; out?of?code building; performance?based design; steel structure truss; floor comfort; hot heavy H section steel
∗中國建筑標(biāo)準(zhǔn)設(shè)計(jì)研究院有限公司自立科研課題:裝配式鋼結(jié)構(gòu)建筑節(jié)點(diǎn)連接關(guān)鍵技術(shù)研究(2021101)。
第一作者:牛永鋒,碩士,工程師,主要從事鋼結(jié)構(gòu)設(shè)計(jì)與研發(fā)工作,Email:46080498@ qq.com。
[引用本文] 牛永鋒,王喆,李競遠(yuǎn),等. 南昌文體中心大跨鋼結(jié)構(gòu)設(shè)計(jì)與分析[ J]. 建筑結(jié)構(gòu),2022,52(12):1?8.NIU Yongfeng,WANG Zhe,LI Jingyuan,et al. Design and analysis on large?span steel structure of Nanchang Cultural and Sports Center[J]. Building Structure,2022,52(12):1?8.
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