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(1 華南理工大學(xué)建筑設(shè)計研究院有限公司,廣州 510641;2 華南理工大學(xué)土木與交通學(xué)院,廣州 510640)
摘要: 作為華南理工大學(xué)廣州國際校區(qū)二期工程標(biāo)志性建筑,E3 圖書館整體呈倒梯形,建筑主屋面高度 27.30m,屬超限結(jié)構(gòu).建筑 3 層及以上中庭位置開設(shè)大洞,僅通過 3、4 層南北兩側(cè)連廊樓板和屋頂天窗跨度為 33.6m 的大跨度 Z 字形鋼梁連接.通過 5 個結(jié)構(gòu)方案比選,選用沿幕墻邊布置斜柱的框架結(jié)構(gòu).斜柱傾斜角度約為 29°,與東、西、南側(cè)外周邊懸挑 2.8~ 8.4m 的內(nèi)框架形成空腹桁架.斜柱在豎向荷載下產(chǎn)生水平分量,通過樓板應(yīng)力分析對樓板進(jìn)行加強.按照設(shè)定的性能目標(biāo),對結(jié)構(gòu)進(jìn)行彈性計算、中震驗算并采用 Perform-3D 軟件進(jìn)行了罕遇地震作用下的彈塑性動力時程分析,根據(jù)分析結(jié)果,采取了有針對性的加強措施.
關(guān)鍵詞: 超限結(jié)構(gòu);中庭開洞;大跨度 Z 字形鋼梁;結(jié)構(gòu)方案比選;斜柱;空腹桁架
中圖分類號:TU973,TU318 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2022)17-0121-06
DOI:10.19701 / j.jzjg.20210119
Structural design of E3 Library of International Campus of South China University of Technology
ZHAO Ying1,JIANG Yi1,2,YI Weiwen1,LIU Guangshuang1,YANG Ziyue1,WU Han1
(1 Architectural Design Research Institute of SCUT,Guangzhou 510641,China;2 School of Civil Engineering and Transportation,South China University of Technology,Guangzhou 510640,China)
Abstract: As the landmark building of phase II project of Guangzhou International Campus of South China University ofTechnology,the overall shape of the E3 Library is an inverted trapezoid and the building height of the main roof is 27.30m,and it is an out-of-code structure. There are large holes in the atrium on the 3rd floor and above of the building,which areonly connected by large-span Z-shaped steel beams with a span of 33.6m between the floor slabs on the north and south sidesof the 3rd and 4th floors and the roof skylight. Through the comparison and selection of five structural schemes,the framestructure with inclined columns arranged along the curtain wall was selected. The inclined column is inclined at an angle ofabout 29°and forms a vierendeel truss with the inner frame of 2.8~8.4m overhanging at the outer periphery of the east,westand south sides. The inclined column produces horizontal components under vertical load,and the floor was strengthened bythe floor stress analysis. According to the predefined performance objectives,elastic design and checking design underfortification earthquakes were conducted and elastic-plastic dynamic time-history analysis was conducted under rareearthquakes using Perform-3D software. According to these analysis results,pertinent strengthening measures were adopted.
Keywords:out-of-code structure;large hole in the atrium;large-span Z-shaped steel beam;comparison and selection ofstructural schemes;inclined column;vierendeel truss
∗企業(yè)橫向科研基金項目(x2jzD8220300).
第一作者:趙穎,碩士,工程師,一級注冊結(jié)構(gòu)工程師,主要從事超高層建筑結(jié)構(gòu)設(shè)計與研究,Email:591759868@ qq. com.
[引用本文] 趙穎,江毅,易偉文,等. 華南理工大學(xué)國際校區(qū) E3 圖書館結(jié)構(gòu)設(shè)計[ J]. 建筑結(jié)構(gòu),2022,52(17):121-126,98. ZHAO Ying,JIANG Yi,YI Weiwen,et al. Structural design of E3 Library of International Campus of SouthChina University of Technology[J]. Building Structure,2022,52(17):121-126,98.
