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(1 中南建筑設(shè)計院股份有限公司, 武漢 430071; 2 武漢大學(xué)土木建筑工程學(xué)院, 武漢 430071)
摘要: 隨州南站站房采用 24 個傘狀單元體呈現(xiàn)銀杏葉的造型,結(jié)構(gòu)設(shè)計時以 H 形截面弦桿形成的異形鋼桁架作為主受力骨架,結(jié)合分叉圓鋼管、吊桿、水平圓管桁架等形成完整單元體結(jié)構(gòu). 單元體結(jié)構(gòu)與頂部波浪形正交鋼梁體系連接,形成了站房屋蓋整體結(jié)構(gòu). 屋蓋結(jié)構(gòu)體系復(fù)雜,單元體根部尺寸收縮,采用屈曲分析得到了結(jié)構(gòu)的屈曲模態(tài)及屈曲因子,第一階屈曲模態(tài)位于傘狀單元體結(jié)構(gòu)根部位置,并進(jìn)一步對屋蓋結(jié)構(gòu)進(jìn)行了荷載-位移全過程分析,以保證屋蓋結(jié)構(gòu)的整體承載力. 設(shè)計時在單元體結(jié)構(gòu)中采用了十字工形組合鋼柱及鼓形節(jié)點,利用有限元分析和試驗的手段對此兩種特殊結(jié)構(gòu)構(gòu)造進(jìn)行了驗證,以確保關(guān)鍵部位的承載力. 單元體結(jié)構(gòu)外表皮采用張拉索-膜結(jié)構(gòu)形成的金黃色 ETFE 膜完整呈現(xiàn)了建筑效果.
關(guān)鍵詞: 隨州南站; 單元體結(jié)構(gòu); 屈曲分析; 十字工形組合鋼柱; 鼓形節(jié)點; 節(jié)點試驗; 過程分析
中圖分類號:TU318+. 2 文獻(xiàn)標(biāo)志碼:A 文章編號:1002-848X(2023)04-0101-06
DOI:10. 19701 / j. jzjg. LS201909
Structural analysis and design on roof of Suizhou South Railway Station
LIU Ming1, WEI Jian1, ZHANG Wei1, DU Xinxi2
(1 Central-South Architectural Design Institute Co. , Ltd. , Wuhan 430071, China;2 School of Civil Engineering, Wuhan University, Wuhan 430071, China)
Abstract: The station building of Suizhou South Railway Station adopts 24 umbrella-shaped elements, which are in theshape of ginkgo leaves. In the structural design, the special-shaped steel truss formed by the H-section chord is used as themain stress skeleton, combined with the bifurcated round steel pipe, the suspension rod, the horizontal circle tube trusses,etc. to form a complete element structure. The element structure is connected with the top wave-shaped orthogonal steelbeam system to form the overall structure of the station building. The roof structure system is complex, and the size of theroot of the element shrinks. The buckling mode and buckling factor of the structure were obtained by buckling analysis. Thefirst-order buckling mode was located at the root of the umbrella-shaped element structure, and the whole process ofload-displacement analysis of the roof structure was carried out to ensure the overall bearing capacity of the roof structure.In the design, the cross-shaped and I-shaped composite steel columns and drum-shaped joints were used in the elementstructure, and the two special structure details were verified by means of finite element analysis and test to ensure thebearing capacity of key parts. The outer facade of the element structure adopts the golden yellow ETFE film formed by thetension cable-membrane structure to completely present the architectural effect.
Keywords:Suizhou South Railway Station; element structure; buckling analysis; cross-shaped and I-shaped compositesteel column; drum-shaped joint; joint test; process analysis
∗中南建筑設(shè)計院股份有限公司 2020 年度產(chǎn)品研發(fā)項目(CSADI-2020-06).
第一作者:劉明,碩士,工程師,主要從事結(jié)構(gòu)設(shè)計,Email:435253119@ qq. com.
[引用本文] 劉明,魏劍,張衛(wèi),等. 隨州南站屋蓋結(jié)構(gòu)設(shè)計和分析[ J]. 建筑結(jié)構(gòu),2023,53( 4):101-106. LIUMing,WEI Jian,ZHANG Wei,et al. Structural analysis and design on roof of Suizhou South Railway Station[J]. BuildingStructure,2023,53(4):101-106.
