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（中國建筑設(shè)計(jì)研究院有限公司， 北京 100044）

［摘要］赤峰市體育中心體育館是一座設(shè)有8千個坐席的綜合性體育館。體育館的主體結(jié)構(gòu)采用鋼筋混凝土框架結(jié)構(gòu)，屋蓋的最大跨度為103-2m，采用大跨度鋼網(wǎng)架結(jié)構(gòu)。體育館內(nèi)設(shè)有24-9m×45m的大空間訓(xùn)練廳，訓(xùn)練廳的頂板作為小球訓(xùn)練廳樓板，樓蓋采用跨度為24-9m和27m跨的大跨度預(yù)應(yīng)力鋼筋混凝土梁。大跨度樓板結(jié)構(gòu)的豎向剛度弱，在人群荷載激勵下容易產(chǎn)生較大的動力響應(yīng)，引起人群的不舒適感。根據(jù)使用功能對小球訓(xùn)練廳樓板進(jìn)行舒適度分析，保證樓蓋結(jié)構(gòu)滿足舒適度要求。由于體育中心建筑形體復(fù)雜，對整體建筑進(jìn)行了風(fēng)洞試驗(yàn)，確?？煽康脑O(shè)計(jì)風(fēng)荷載。通過針對性的分析，項(xiàng)目投入使用多年，結(jié)構(gòu)運(yùn)行良好，滿足實(shí)際使用需求。

［關(guān)鍵詞］體育館； 舒適度； 預(yù)應(yīng)力混凝土梁； 網(wǎng)架結(jié)構(gòu)； 風(fēng)洞試驗(yàn)

中圖分類號：TU398-7文獻(xiàn)標(biāo)識碼：A文章編號：1002-848X(2019)11-0087-06

Structural design of the gymnasium in Chifeng Sport Center

Huo Wenying, Luo Minjie, Lu Ying, Hao Guolong, Sun Hailin

(China Architecture Design & Research Group, Beijing 100044, China)

Abstract:The gymnasium in Chifeng Sports Center is a complex gymnasium and has eight thousand seats. The main structure of the gymnasium is reinforced concrete frame. The structure of the roof which has a maximum span of 103-2m is large-span steel grid structure. There is a large space training hall of 24-9m×45m in the gymnasium and the top of the training hall serves as the floor of the badminton and ping-pong training field. The 24-9m-span and 27m-span prestressed reinforced concrete beams are used for the floor. As the vertical stiffness of the large-span floor structure is weak, it is easy to produce large dynamic response under the excitation of crowd load, which may lead to the uncomfort of the crowd. According to the use function, the comfort analysis of the floor of badminton and ping-pong training field was carried out to ensure that the floor structure meets the comfort requirements.Wind tunnel test was carried out to determine the reliable design wind load on the structure because of the unusual form of the gymnasium. Under specific analysis, the project is in good status and meets the demand of usage after the gymnasium put into service.

Keywords:gymnasium; comfortableness; prestressed concrete beam; grid structure; wind tunnel test