(1 哈尔滨工业大学结构工程灾变与控制教育部重点实验室, 哈尔滨 150090; 2 哈尔滨工业大学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 150090; 3 北京国家游泳中心有限责任公司, 北京 100101; 4 中交天津港湾工程研究院有限公司, 天津 300222)

摘要: 为了探究装配式冰场冰面内置冰排架和冰排管时的真实受力性能,根据实际冰面构造和实测的材料特性,建立了冰面的有限元精细化分析模型,分析了冰排架和冰排管及冰排管内压对冰层承载力、刚度及应力场的影响规律. 结果发现,冰层中内置冰排架及冰排管时,冰面承载能力和整体刚度仅会有 1% ~ 2%的小幅提高,并未像配筋一样起到显著加强承载力的作用. 内置冰排架和冰排管不会显著影响冰层内水平应力场分布的均匀程度,但对 Z 向应力场产生影响较大,使冰排架边角处的冰层出现应力集中的现象. 冰排管内压在 0 ~ 0. 2MPa 的范围内变化对冰面的承载能力及刚度几乎没有影响,冰面制作时不用考虑冰排管内压影响.

关键词: 2022 年北京冬奥会; 国家游泳中心; 装配式冰场; 人工冰面; 受力性能; 精细化模拟

中图分类号:TU399 文献标志码:A 文章编号: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

∗国家重点研发计划资助(2020YFF0304301),中建股份科技研发计划资助(CSCEC-2019-Z-7).

第一作者:韦博,硕士,主要从事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. 装配式冰场冰面受力性能的精细化模拟[J]. 建筑结构,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.