大型有机玻璃碗结构多工况有限元分析
引用文献：
钱小辉 冯益 陈海霞 张高峰 肖建霞 成伟 马骁妍 衡月昆. 大型有机玻璃碗结构多工况有限元分析[J]. 建筑结构，2022，48（08）：42-47.
QIAN Xiaohui FENG Yi CHEN Haixia ZHANG Gaofeng XIAO Jianxia CHENG Wei MA Xiaoyan HENG Yuekun. Finite element analysis of large polymethyl methacrylate bowl-shaped structure under multi-load condition[J]. Building Structure，2022,48（08）：42-47.
摘要：有机玻璃材料越来越广泛地应用于建筑结构、海洋工程、粒子物理实验等各个领域。对某广场一直径为24m的大型有机玻璃碗进行结构设计，为缩短施工工期，有机玻璃碗采用多环形结构，各有机玻璃环可平行独立制作。为了保证结构的可靠性，采用ABAQUS有限元软件进行摩擦边界的非线性力学分析。建立有机玻璃碗和钢网壳支撑结构模型，探索了两者接触面接触形式和接触摩擦系数对结构的受力影响。采用单一安全系数法对结构在不同边界条件下进行分析校核，结果显示，摩擦系数对有机玻璃碗受力影响很小，有机玻璃碗各工况下的应力小于5.5MPa,满足设计要求。
关键词：有机玻璃碗，环形结构，钢网壳，摩擦系数，支撑边界设计
基金：中国科学院青年创新促进会(2920200000087)；中国科学院先导专项(XDA10010200)；中国科学院高能物理研究所谢家麟基金(512020000107)。
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参考文献[1] 邬红茹，王综轶，孙洲，等.南京未来花园单个树状结构设计及承载性能分析[J].建筑结构，2021,51(10):55-59.
[2] 江镇海.PMMA在建材中的应用及市场前景分析[J].合成材料老化与应用，2002(3):44-45.
[3] 林景高，张文明，冯雅丽，等.载人潜水器观察窗研究综述[J].船舶工程，2013,35(3):1-5,75.
[4] 李华峰，朱忠义，束伟农，等.江门中微子实验中心探测器主体不锈钢结构设计研究[J].建筑结构，2018,48(20):92-97.
[5] 李华峰.江门中微子实验(JUNO)中心探测器结构在浮力下的整体稳定性研究[J].建筑结构，2021,51(20):76-81.
[6] ANDRINGA S,ARUSHANOVA E,ASAHI S,et al.Current status and future prospects of the SNO+experiment[J].Advances in High Energy Physics,2016,1:6194250.
[7] BOGER J,HAHN R L,ROWLEY J K.The sudbury neutrino observatory[J].Nuclear Instruments and Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment,2000,449(2):172-207.
[8] AN F P,AN G P,AN Q,et al.Neutrino physics with JUNO[J].Journal of Physics G,2016,43(3):030401.
[9] QIAN X H,MA X Y,HENG Y K,et al.Structure design and compression experiment of the supporting node for JUNO PMMA detector[J].Radiation Detection Technology and Methods,2020,4:345-355.
[10] STRACHIW J D.Handbook of acrylics for submersibles hyperbaric chambers and aquaria[M].FLagstaff,AZ,USA:Best Publishing Company,2003.
[11] 王综轶，王元清，杜新喜，等.不同温度下有机玻璃厚板的准静态拉伸试验研究[J].东南大学学报(自然科学版),2018,48(1):132-137.
[12] ARIANO R.The coefficients of friction between rubber and other materials[J].Rubber Chemistry and Technology,1930,3(1):67-73.
[13] TUONONEN A J.Onset of frictional sliding of rubber-glass contact under dry and lubricated conditions[J].Scientific Reports,2016,6(1):27951.
[14] NUNO N,GROPPETTI R,SENIN N.Static coefficient of friction between stainless steel and PMMA used in cemented hip and knee implants[J].Clinical Biomechanics,2006,21(9):956-962.
[2] 江镇海.PMMA在建材中的应用及市场前景分析[J].合成材料老化与应用，2002(3):44-45.
[3] 林景高，张文明，冯雅丽，等.载人潜水器观察窗研究综述[J].船舶工程，2013,35(3):1-5,75.
[4] 李华峰，朱忠义，束伟农，等.江门中微子实验中心探测器主体不锈钢结构设计研究[J].建筑结构，2018,48(20):92-97.
[5] 李华峰.江门中微子实验(JUNO)中心探测器结构在浮力下的整体稳定性研究[J].建筑结构，2021,51(20):76-81.
[6] ANDRINGA S,ARUSHANOVA E,ASAHI S,et al.Current status and future prospects of the SNO+experiment[J].Advances in High Energy Physics,2016,1:6194250.
[7] BOGER J,HAHN R L,ROWLEY J K.The sudbury neutrino observatory[J].Nuclear Instruments and Methods in Physics Research Section A-accelerators Spectrometers Detectors and Associated Equipment,2000,449(2):172-207.
[8] AN F P,AN G P,AN Q,et al.Neutrino physics with JUNO[J].Journal of Physics G,2016,43(3):030401.
[9] QIAN X H,MA X Y,HENG Y K,et al.Structure design and compression experiment of the supporting node for JUNO PMMA detector[J].Radiation Detection Technology and Methods,2020,4:345-355.
[10] STRACHIW J D.Handbook of acrylics for submersibles hyperbaric chambers and aquaria[M].FLagstaff,AZ,USA:Best Publishing Company,2003.
[11] 王综轶，王元清，杜新喜，等.不同温度下有机玻璃厚板的准静态拉伸试验研究[J].东南大学学报(自然科学版),2018,48(1):132-137.
[12] ARIANO R.The coefficients of friction between rubber and other materials[J].Rubber Chemistry and Technology,1930,3(1):67-73.
[13] TUONONEN A J.Onset of frictional sliding of rubber-glass contact under dry and lubricated conditions[J].Scientific Reports,2016,6(1):27951.
[14] NUNO N,GROPPETTI R,SENIN N.Static coefficient of friction between stainless steel and PMMA used in cemented hip and knee implants[J].Clinical Biomechanics,2006,21(9):956-962.
Finite element analysis of large polymethyl methacrylate bowl-shaped structure under multi-load condition
Abstract: The materials of polymethyl methacrylate(PMMA) have been widely used in the field of building structures, marine projects, particle physic experiments, and so on. A large PMMA bowl-shaped structure with a diameter of 24 m was designed. In order to shorten construction period, the PMMA bowl adopts multi-ring structure, and each PMMA ring can be made independently in parallel. In order to ensure the long-term reliability of the structure, the finite element analysis software of ABAQUS was used for the nonlinear mechanical analysis of the friction boundary. A model of PMMA bowl and its steel latticed shell supporting structure was established, and the influence of the contact boundary condition and friction coefficient between PMMA bowl and steel structure was explored. Single safety factor method was used to analyze and verify the structural stress of different contact boundaries. The results show that the friction coefficient has little effect on the stress of PMMA bowl. The stress of the PMMA bowl is less than 5.5 MPa under various working conditions, which meets the design requirement.
Keywords: polymethyl methacrylate bowl; ring structure; steel latticed shell; friction coefficient; support boundary design
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