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(1 深圳大學(xué)建筑設(shè)計(jì)研究院，深圳 518060；2 中建國(guó)際設(shè)計(jì)顧問(wèn)有限公司，深圳 518033)

［摘要］重力荷載作用下網(wǎng)筒結(jié)構(gòu)外鼓及交叉柱間軸力差異將使環(huán)梁受到較大的拉力。為保證環(huán)梁具有適宜的剛度，控制環(huán)梁裂縫寬度，工程中部分環(huán)梁采用了部分預(yù)應(yīng)力，并對(duì)預(yù)應(yīng)力張拉施工全過(guò)程進(jìn)行了施工模擬。環(huán)梁設(shè)計(jì)采用了預(yù)應(yīng)力等效荷載和重力、風(fēng)、溫度、地震多種荷載組合下的最不利內(nèi)力。預(yù)應(yīng)力效應(yīng)全過(guò)程整體分析為環(huán)梁及整體結(jié)構(gòu)設(shè)計(jì)安全可靠提供了保證。

［關(guān)鍵詞］超高層建筑；外網(wǎng)筒；交叉柱；環(huán)梁；部分預(yù)應(yīng)力；等效荷載

Partially prestressed concrete ring beams design of a super high-rise building in Qatar

Meng Meili¹, Fu Xueyi^1，2, Wu Bing¹(1 Shenzhen University Institute of Architectural Design and Research, Shenzhen 518060, China; 2 China Construction (Shenzhen) Design International, Shenzhen 518033, China)

Abstract:The exterior tube structure exerts radial outward forces, and the diagrid columns have significant difference in axial force. Both result in large axial tension forces in ring beams. To guarantee the ring beams stiffness and control the crack width, partially prestressed technique in some ring beams is used. And the whole prestressed construction process is considered in the FEM. The maximum forces due to combinations which include the prestressed equivalent load, gravity load, temperature action, earthquake action etc are applied to ring beams design. The analysis with full consideration of the whole construction process makes sure of the safety of the ring beams, so as the whole structure.

Keywords:super high-rise building; exterior tube structure; diagrid columns; ring beam; partially prestressed; equivalent load

作者簡(jiǎn)介：孟美莉，高級(jí)工程師，Email:0755mml@163.com。

參考文獻(xiàn)

［1］BRITISH STANDARD BS8110:part1-2［S］. 1997.

［2］傅學(xué)怡，吳兵，陳賢川,等. 卡塔爾某超高層建筑結(jié)構(gòu)設(shè)計(jì)研究綜述［J］. 建筑結(jié)構(gòu)學(xué)報(bào)，2008，29(1).

［3］EUROCODE 1—4［S］. 2001.