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(中國建筑西南設(shè)計(jì)研究院有限公司，成都 610081)

［摘要］   常州體育會展中心體育場下部采用鋼筋混凝土框架結(jié)構(gòu)、罩篷采用平面管桁架結(jié)構(gòu)。結(jié)構(gòu)設(shè)計(jì)中對下部超長混凝土結(jié)構(gòu)采用預(yù)應(yīng)力技術(shù)控制溫度應(yīng)力；對屋蓋大懸挑平面管桁架進(jìn)行了剛性模型的風(fēng)洞試驗(yàn)以確定風(fēng)載計(jì)算參數(shù)；針對大懸挑平面管桁架穩(wěn)定性相對較差的特點(diǎn)，利用與上弦桿剛接的矩管檁條、上下弦間的垂直支撐及布置于下弦的平行鋼絲拉索，使屋蓋的整體穩(wěn)定性得到保證。屋蓋與下部結(jié)構(gòu)連接支座采用了銷軸支座，以適應(yīng)平面桁架的受力變形要求。支座及連接復(fù)雜處的拉索節(jié)點(diǎn)采用了鑄鋼節(jié)點(diǎn)。該工程建成后經(jīng)受住了2008年罕見雪災(zāi)的考驗(yàn)，主體結(jié)構(gòu)完好。
［關(guān)鍵詞］   常州體育會展中心；   超長混凝土結(jié)構(gòu)；   大懸挑；   平面管桁架；   整體穩(wěn)定；   鑄鋼節(jié)點(diǎn)

Structural design of the stadium of Changzhou Sports and Exhibition Center
Liu Yifeng, Feng Yuan, Zhao Guangpo, Chen Pingyou, Lei Jichuan, Chen Tianyi, Chen Wenming
(China Southwest Architectural Design and Research Institute Co., Ltd., Chengdu 610081, China)
Abstract:Reinforced concrete frame and steel canopy composed of tube trusses were used in the stadium of Changzhou Sports and Exhibition Center. Pre-stressed concrete was used to control temperature stress of super-long reinforced concrete; wind tunnel test was carried out to determine parameters for wind effects calculation of the cantilever canopy; rectangular purling on up-chord, vertical bracings and parallel cables on lower-chord were used to compensate the instability of the cantilever tube trusses which composed of the canopy; pinged connecters were used as the supporters of the canopy to satisfy deformation requirements of plan tube trusses. Cast-steel nodes were employed for nodes connected with cables and complex supporters. The stadium experienced the gigantic snow in 2008 and the main structure remains intact.
Keywords:Changzhou Sports and Exhibition Center; super-long reinforced concrete structure; large cantilever; plan tube truss; overall stability; cast-steel node
作者簡介：劉宜豐，高級工程師，一級注冊結(jié)構(gòu)工程師，Email：lyf0142@163.com。

參考文獻(xiàn)
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［3］   陳平友，劉宜豐. 常州體育中心體育場超長結(jié)構(gòu)中預(yù)應(yīng)力的應(yīng)用［J］.建筑結(jié)構(gòu)，2009，39(9)：72-74.
［4］   西南交通大學(xué)風(fēng)工程試驗(yàn)研究中心. 常州市體育中心體育場風(fēng)洞試驗(yàn)報告［R］. 2006.
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