(1 结构工程灾变与控制教育部重点实验室 (哈尔滨工业大学), 哈尔滨 150090; 2 土木工程智能防灾减灾工业和信息化部重点实验室 (哈尔滨工业大学), 哈尔滨 150090; 3 北京国家游泳中心有限责任公司, 北京 100101)

摘要: 为探析国家游泳中心双奥场馆装配式转换冰场冰面的受力机理,利用 ABAQUS 软件建立冰面的模型,分析各类荷载作用下的应力状态和分布模式,证明了弯曲破坏为装配式冰场冰面的主要破坏形式,破坏荷载主要来源于大吨位浇冰车的轮压等集中荷载作用. 基于弹性地基上的薄板理论和混凝土路面弯曲应力的相关计算方法,提出冰场人工冰面最大弯曲拉应力的计算公式. 通过改变冰面和挤塑板的相关参数,进行精细有限元分析,验证了冰面最大弯曲应力计算方法的准确性. 所得成果为确定冰场人工冰的力学性能指标和进一步研究冰层破坏机理奠定了基础.

关键词: 国家游泳中心; 装配式冰场; 人工冰面; 受力模式; 弯曲应力; 力学性能指标

中图分类号:TU399 文献标志码:A 文章编号:1002⁃848X(2022)08⁃0036⁃06

DOI:10. 19701 / j.jzjg.20200624

Force model and bending stress calculation method of artificial ice surface in ice rink ofNational Aquatics Center

WEI Bo1,2, ZHANG Wenyuan1,2, YANG Qiyong3, DING Yukun1,2

(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)

Abstract: In order to analyze the force mechanism of the ice surface of the prefabricated conversion ice rink in the NationalAquatics Center double olympic stadium, the ice surface model was established by ABAQUS software. The stress state anddistribution pattern under various loads were analyzed, and it was proved that the bending failure is the main failure form ofthe prefabricated ice surface in the field, and the failure load mainly comes from the concentrated load such as the wheelpressure of the large⁃tonnage ice pouring truck. Based on the thin plate theory on elastic foundation and the relatedcalculation method of the bending stress of concrete pavement, the calculation formula of the maximum bending tensilestress of artificial ice surface in ice rink was proposed. By changing the relevant parameters of the ice surface and theextruded plastic plate, a fine finite element analysis was carried out, and the accuracy of the calculation method of themaximum bending stress of the ice surface was verified. The obtained results lay a foundation for determining the mechanicalproperties of artificial ice in ice rinks and further studying the ice damage mechanism.

Keywords: National Aquatics Center; prefabricated ice rink; artificial ice surface; force model; bending stress;mechanical performance index

∗北京市科技计划项目(D171100001117001),中建股份科技研发计划资助(CSCEC⁃2019⁃Z⁃7).

第一作者:韦博,硕士,助理工程师,主要从事于高层钢结构及结构监测等研究工作,Email:weibo96@ 163.com.

[引用本文] 韦博,张文元,杨奇勇,等. 国家游泳中心冰场人工冰面受力模式和弯曲应力计算方法[ J]. 建筑结构,2022,52(8):36⁃41,73. WEI Bo, ZHANG Wenyuan, YANG Qiyong, et al. Force model and bending stress calculationmethod of artificial ice surface in ice rink of National Aquatics Center[J]. Building Structure,2022,52(8):36⁃41,73.