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(1 北京航化節(jié)能環(huán)保技術(shù)有限公司, 北京 100176; 2 北京交通大學(xué)土木建筑工程學(xué)院, 北京100044; 3 北京市金鼎雕塑藝術(shù)有限公司, 北京 102212)

摘要: 北京 2022 年冬奧會(huì)和冬殘奧會(huì)場(chǎng)外火炬臺(tái)由雕塑造型工程、雙轉(zhuǎn)臺(tái)裝置、燃料供應(yīng)和燃燒系統(tǒng)等組成.雕塑造型工程作為火炬臺(tái)核心部件,為達(dá)到藝術(shù)效果,整體輪廓呈大跨度多曲面異形風(fēng)敏感結(jié)構(gòu),采用風(fēng)洞試驗(yàn)方法獲取整體結(jié)構(gòu)的風(fēng)振系數(shù)和體型系數(shù). 雕塑造型工程作為永久性建筑和動(dòng)態(tài)雕塑,結(jié)合其運(yùn)動(dòng)特征確定了兩種計(jì)算工況,兩種計(jì)算工況分別綜合考慮自重、風(fēng)荷載、地震作用、雪荷載和溫度作用等,按照規(guī)范對(duì)各類(lèi)荷載進(jìn)行疊加,采用有限元計(jì)算方法對(duì)結(jié)構(gòu)整體進(jìn)行強(qiáng)度和剛度計(jì)算和校核,確保場(chǎng)外火炬臺(tái)在極限工況下安全、可靠. 同時(shí),工程結(jié)構(gòu)局部位置的變形逐漸加大將影響裝置轉(zhuǎn)動(dòng),最終采用方案是風(fēng)速超過(guò) 8 級(jí)風(fēng)時(shí),火炬臺(tái)不能轉(zhuǎn)動(dòng),需要關(guān)停機(jī)械裝置,待風(fēng)速降低后再使用.關(guān)鍵詞: 冬奧會(huì); 冬殘奧會(huì); 火炬臺(tái); 雕塑造型工程; 風(fēng)洞試驗(yàn); 強(qiáng)度和剛度

中圖分類(lèi)號(hào):TU318+. 1 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)09-0080-05

DOI:10. 19701 / j. jzjg. 20221266

Structural design of sculpture modeling engineering in Beijing 2022 Olympic Winter Games and Winter Paralympic Games cauldron

HU Tao1, ZHANG Fan1, LI Bo2, LIU Yue1, SONG Xiaofeng1, CHEN Shenbing3, WANG Yonghui3

(1 Beijing Aerospace-Petrochemical Energy Conservation & Enviroment Protection Technology Co. , Ltd. , Beijing100176, China; 2 School of Civil Engineering, Beijing Jiaotong University, Beijing 100044, China;3 Beijing Jinding Sculpture Art Co. , Ltd. , Beijing 102212, China)

Abstract: Beijing 2022 Olympic Winter Games and Winter Paralympic Games cauldron outside National Stadium iscomposed of sculpture modeling engineering, double turntable device, fuel supply and combustion system, etc. As the corecomponent of the cauldron, the sculpture modeling engineering presents a large-span multi curved surface special-shapedwind sensitive structure in order to achieve artistic effect. The wind vibration coefficient and shape coefficient were obtainedby wind tunnel test. As a permanent building and dynamic sculpture, sculpture modeling engineering determines twocalculation cases based on its motion characteristics. Two calculation cases comprehensively consider the self-weight, windload, earthquake action, snow load and temperature action, superimposes each load according to the specifications, andcalculates and checks the strength and stiffness of the whole structure by using the finite element calculation method, so asto ensure the safe and reliability of the cauldron under the limit case. At the same time, increasing local deformation of theengineering structure will affect the rotation of the device. The final solution is when the wind speed exceeds grade 8, thecauldron could not be rotated, so the mechanical device needs to be shut down and used again after the wind speed isreduced.

Keywords:Olympic Winter Games; Winter Paralympic Games; cauldron; sculpture modeling engineering; wind tunneltest; strength and stiffness

∗ 國(guó)家重點(diǎn)研發(fā)計(jì)劃項(xiàng)目(2021YFF0308000) .

第一作者:胡濤,碩士,高級(jí)工程師,主要從事節(jié)能環(huán)保裝置和非標(biāo)結(jié)構(gòu)設(shè)計(jì)與研發(fā),Email:hut@ calt11. cn.

[引用本文] 胡濤,張范,李波,等. 北京 2022 年冬奧會(huì)和冬殘奧會(huì)火炬臺(tái)雕塑造型工程結(jié)構(gòu)設(shè)計(jì)[ J]. 建筑結(jié)構(gòu),2023,53(9):80-84,74. HU Tao,ZHANG Fan ,LI Bo,et al. Structural design of sculpture modeling engineering in Beijing2022 Olympic Winter Games and Winter Paralympic Games cauldron[J]. Building Structure,2023,53(9):80-84,74.