鄂爾多斯體育中心綜合體育館鋼屋蓋設(shè)計
劉永波, 尤天直, 張亞東, 鮑偉麗, 高文軍, 閻鐘巍
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(中國建筑設(shè)計院有限公司，北京 100044)［摘要］鄂爾多斯體育中心綜合體育館平面呈橢圓形，長軸為156.8m，短軸為126.6m，周邊環(huán)繞36根向外傾斜的巨型柱支撐屋頂鋼桁架。鋼桁架與傾斜巨型柱剛接，鋼桁架為整體結(jié)構(gòu)的一部分，與傾斜巨型柱相互支撐、約束，共同承擔(dān)豎向荷載，抵抗水平荷載。介紹了鋼屋蓋的結(jié)構(gòu)特點(diǎn)和設(shè)計參數(shù)，并從主要桿件的應(yīng)力比、桁架節(jié)點(diǎn)及支座節(jié)點(diǎn)承載力等多方面說明鋼結(jié)構(gòu)屋蓋的安全、可靠。［關(guān)鍵詞］鋼屋蓋; 大跨度; 抗震性能設(shè)計; 空間桁架中圖分類號：TU242, TU392 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2015)01-0058-06Structural design on comprehensive gymnasium steel roof of Ordos Sports CenterLiu Yongbo, You Tianzhi, Zhang Yadong, Bao Weili, Gao Wenjun, Yan Zhongwei(China Architecture Design Institute Co., Ltd., Beijing 100044, China)Abstract: The plane of comprehensive gymnasium of Ordos Sports Center is ellipse with maximum length of 156.8m and minimum length of 126.6m. The steel roof is supported by 36 mega-columns around that incline outwards. The connection between steel truss and mega-column is rigid, so steel truss is part of the overall structure. The steel truss and mega-column support and restrain each other to bear vertical and horizontal loadings. The structure characteristics and design parameters of the steel roof were mainly introduced. The safety and reliability of the steel structure roof was illustrated from aspects of stress ratios of main components, truss joints and bearing capacity of bearing joints.Keywords: steel roof; large span; performance-based seismic design; spatial truss作者簡介：劉永波，碩士，一級注冊結(jié)構(gòu)工程師，Email：liuyb@cadg.cn。參考文獻(xiàn)［1］ 同濟(jì)大學(xué)土木工程防災(zāi)國家重點(diǎn)實(shí)驗(yàn)室.鄂爾多斯市體育中心項(xiàng)目風(fēng)洞試驗(yàn)研究與風(fēng)振分析：體育館模型測壓風(fēng)洞試驗(yàn)與風(fēng)振分析［R］.2011.［2］GB 50017—2003 鋼結(jié)構(gòu)設(shè)計規(guī)范［S］.北京:中國計劃出版社，2003.［3］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.
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