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(1 哈爾濱工業(yè)大學(xué)結(jié)構(gòu)工程災(zāi)變與控制教育部重點(diǎn)實(shí)驗(yàn)室, 哈爾濱 150090; 2 哈爾濱工業(yè)大學(xué)土木工程智能防災(zāi)減災(zāi)工業(yè)和信息化部重點(diǎn)實(shí)驗(yàn)室, 哈爾濱 150090; 3 北京國(guó)家游泳中心有限責(zé)任公司, 北京 100101; 4 中交天津港灣工程研究院有限公司, 天津 300222)

摘要: 為了探究裝配式冰場(chǎng)冰面內(nèi)置冰排架和冰排管時(shí)的真實(shí)受力性能,根據(jù)實(shí)際冰面構(gòu)造和實(shí)測(cè)的材料特性,建立了冰面的有限元精細(xì)化分析模型,分析了冰排架和冰排管及冰排管內(nèi)壓對(duì)冰層承載力、剛度及應(yīng)力場(chǎng)的影響規(guī)律. 結(jié)果發(fā)現(xiàn),冰層中內(nèi)置冰排架及冰排管時(shí),冰面承載能力和整體剛度僅會(huì)有 1% ~ 2%的小幅提高,并未像配筋一樣起到顯著加強(qiáng)承載力的作用. 內(nèi)置冰排架和冰排管不會(huì)顯著影響冰層內(nèi)水平應(yīng)力場(chǎng)分布的均勻程度,但對(duì) Z 向應(yīng)力場(chǎng)產(chǎn)生影響較大,使冰排架邊角處的冰層出現(xiàn)應(yīng)力集中的現(xiàn)象. 冰排管內(nèi)壓在 0 ~ 0. 2MPa 的范圍內(nèi)變化對(duì)冰面的承載能力及剛度幾乎沒有影響,冰面制作時(shí)不用考慮冰排管內(nèi)壓影響.

關(guān)鍵詞: 2022 年北京冬奧會(huì); 國(guó)家游泳中心; 裝配式冰場(chǎng); 人工冰面; 受力性能; 精細(xì)化模擬

中圖分類號(hào):TU399 文獻(xiàn)標(biāo)志碼:A 文章編號(hào):1002-848X(2023)11-0075-06

DOI:10. 19701 / j. jzjg. 20201583

Refined simulation on mechanical performance of prefabricated ice rink surface

WEI Bo1,2,4, ZHANG Wenyuan1,2, YANG Qiyong3, QI Zhiguang3

(1 Key Lab of Structures Dynamic Behavior and Control, Harbin Institute of Technology, Ministry of Education,Harbin 150090, China; 2 Key Lab of Smart Prevention and Mitigation of Civil Engineering Disasters, Harbin Instituteof Technology, Ministry of Industry and Information Technology, Harbin 150090, China; 3 Beijing National AquaticsCenter Co. Ltd. , Beijing 100101, China; 4 Tianjin Port Engineering Institute, Co. , Ltd. of CCCC FirstHarbor Engineering Co. , Ltd. , Tianjin 300222, China)

Abstract: In order to explore the true mechanical performance of the built-in ice racks and ice row pipe on the ice surfaceof the prefabricated ice rink, based on the actual ice surface structure and measured material characteristics, a refined finiteelement analysis model of the ice surface was established and the influence law of ice rack, ice row pipe and internalpressure of ice row pipe on ice bearing capacity, stiffness and stress field were analyzed. The results show that when iceracks and ice row pipes are built into the ice layer, the load-bearing capacity and overall rigidity of the ice surface will onlyincrease slightly by 1% ~ 2%, which does not significantly enhance the load-bearing capacity like reinforcement. The builtin ice racks and ice row pipes will not significantly affect the uniformity of the horizontal stress field distribution in the icelayer, but have a greater impact on the Z-direction stress field, causing stress concentration in the ice layer at the corners ofthe ice rack. Changes in the internal pressure of the ice row pipe within the range of 0~ 0. 2MPa have almost no effect onthe bearing capacity and stiffness of the ice surface, and the effect of the internal pressure of the ice row pipe is notconsidered when making the ice surface.

Keywords:2022 Beijing Olympic Winter Games; National Aquatics Center; fabricated ice rink; artificial ice surface; forceperformance; refined simulation

∗國(guó)家重點(diǎn)研發(fā)計(jì)劃資助(2020YFF0304301),中建股份科技研發(fā)計(jì)劃資助(CSCEC-2019-Z-7).

第一作者:韋博,碩士,主要從事高層鋼結(jié)構(gòu)及結(jié)構(gòu)監(jiān)測(cè)等研究工作,Email:weibo96@ 163. com.

[引用本文] 韋博,張文元,楊奇勇,等. 裝配式冰場(chǎng)冰面受力性能的精細(xì)化模擬[J]. 建筑結(jié)構(gòu),2023,53(11):75-80. WEI Bo,ZHANG Wenyuan,YANG Qiyong,et al. Refined simulation on mechanical performance of prefabricated icerink surface[J]. Building Structure,2023,53(11):75-80.