- 摘 要
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(1 同濟大學建筑設(shè)計研究院(集團)有限公司,上海 200092;2 同濟大學橋梁工程系,上海 200092)
[摘要]珠?;疖囌疚菝驿摻Y(jié)構(gòu)單跨達70m,采用由人字柱支撐、拉索、交叉懸臂鋼拱架組成的新型結(jié)構(gòu)體系。鋼拱架人字柱支撐和拱腳坐落在與橋梁帽梁相連的、跨度32.7m的鋼骨混凝土轉(zhuǎn)換梁上,是真正意義上的“橋建合一”結(jié)構(gòu)。介紹了珠?;疖囌窘Y(jié)構(gòu)設(shè)計中對于溫度荷載作用、混凝土收縮、徐變等因素對橋梁結(jié)構(gòu)設(shè)計的影響的分析,對雙向受彎和受扭的大跨度轉(zhuǎn)換梁結(jié)構(gòu)的計算分析和節(jié)點處理,以及屋面鋼結(jié)構(gòu)的設(shè)計和施工方案選擇等若干結(jié)構(gòu)設(shè)計中關(guān)鍵技術(shù)問題的分析和研究,并闡述了所采取的解決方案,為相似工程的結(jié)構(gòu)設(shè)計提供參考。
[關(guān)鍵詞]珠?;疖囌?/span>; 混凝土框架橋梁; 橋建合一; 鋼骨混凝土轉(zhuǎn)換梁; 施工模擬
中圖分類號:TU398 文獻標識碼:A 文章編號:1002-848X(2014)07-0050-05
Structural design of Zhuhai Railway Station
Liu Chuanping1,2, Liu Tianluan1, Sun Bin2
(1 Tongji Architectural Design(Group) Co., Ltd., Shanghai 200092, China; 2 Department of Bridge Engineering of Tongji University, Shanghai 200092, China)
Abstract: With span of 70m, the steel roof structure of Zhuhai Railway Station adopts a new structural system of herringbone column brace, steel cable and cross cantilever steel arch. Herringbone column brace of steel arch and arch foot are both located on the 32.7m span SRC transfer beam connected with bridge cap beam. The structure is a typical integrated bridgestation structure. The influences of temperature, concrete shrinkage and creep on the bridge structure design were introduced as well as the calculation analysis and the joint design of the large-span transfer beam that bears combined two-way bending moment and torsion. Several key technical problems in the design of roof steel structure and the selection of construction scheme were also analyzed as well as the solutions. All above results can provide references for structural design of similar projects.
Keywords: Zhuhai Railway Station; concrete frame bridge; integrated bridge-station structure; SRC transfer beam; construction simulation
作者簡介:劉傳平,高級工程師,一級注冊結(jié)構(gòu)工程師,注冊土木工程師(巖土),Email:liuchuanping@126.com。
參考文獻
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[2]TB 10002.1—2005,J 460—2005 鐵路橋涵設(shè)計基本規(guī)范[S]. 北京:中國鐵道出版社,2005.
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