铝合金蜂窝板-杆组合网格结构的等效刚度研究
引用文献：
王钢 赵才其 顾业 马军. 铝合金蜂窝板-杆组合网格结构的等效刚度研究[J]. 建筑结构，2022，48（12）：31-35，94.
WANG Gang ZHAO Caiqi GU Ye MA Jun. Study on equivalent stiffness of aluminum alloy honeycomb panel-beam composite grid structure[J]. Building Structure，2022,48（12）：31-35，94.
摘要：铝合金蜂窝板作为典型的轻质高强材料已被广泛应用于航空航天领域。由于大跨空间结构对自重特别敏感，为此将蜂窝板与单层铝合金网壳可靠连接，形成一种新型组合网壳，前期研究结果表明，该结构显著提高了单层铝合金网壳的整体刚度及稳定性。为探究蜂窝板与铝合金杆之间共同工作的性能，以及该类组合结构的简化计算方法，设计制作了3组铝合金蜂窝板-杆组合网格结构试件开展承载力试验，并建立精细化有限元模型，进行了弹塑性分析，最后在理论分析的基础上提出了等效抗弯刚度及等效薄膜刚度的计算公式。
关键词：铝合金蜂窝板；单层铝合金网壳；铝合金蜂窝板-杆组合网格；弹塑性分析；等效抗弯刚度；等效薄膜刚度
基金：国家自然科学基金项目(51578136)。
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[4] 熊哲，郭小农，罗永峰，等.节点刚度对铝合金板式节点网壳稳定性能的影响[J].天津大学学报(自然科学与工程技术版),2015,48(S1):39-45.
[5] LIU H B,DING Y Z,CHEN Z H.Static stability behavior of aluminum alloy single-layer spherical latticed shell structure with Temcor joints[J].Thin-Walled Structures,2017,120:355-365.
[6] 丁艺喆，刘红波，陈志华.考虑蒙皮和节点刚度的铝合金网壳稳定性[J].工业建筑，2017,47(10):153-157,128.
[7] 马会环，余凌伟，王伟，等.铝合金半刚性椭圆抛物面网壳静力稳定性分析[J].工程力学，2017,34(11):158-166.
[8] 张雪峰，尹建，欧阳元文，等.南京牛首山文化旅游区佛顶宫小穹顶大跨空间单层铝合金网壳结构设计[J].建筑结构，2018,48(14):19-23.
[9] 冯若强，王希，朱洁，等.北京新机场装配式单层铝合金网壳结构整体稳定性能研究[J].建筑结构学报，2020,41(4):11-18.
[10] MA Y X,ZHENG Y D,MENG H Y,et al.Heterogeneous PVA hydrogels with micro-cells of both positive and negative Poisson’s ratios[J].Journal of the Mechanical Behavior of Biomedical Materials,2013,23:22-31.
[11] DIRKS J H,DÜRR V.Biomechanics of the stick insect antenna:Damping properties and structural correlates of the cuticle[J].Journal of the Mechanical Behavior of Biomedical Materials,2011,4(8):2031-2042.
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[14] ZHAO C,MA J,DU S.The mechanical behaviour of new long-span hollow-core roofs based on aluminum alloy honeycomb panels[J].Materiali in Tehnologije,2019,53(3):311-318.
[15] 赵金森.铝蜂窝夹层板的力学性能等效模型研究[D].南京：南京航空航天大学，2006.
[16] 沈世钊.网壳结构的稳定性[J].土木工程学报，1999,32(6):11-19,25.
Study on equivalent stiffness of aluminum alloy honeycomb panel-beam composite grid structure
Abstract: Aluminum alloy honeycomb panels were widely used in the aerospace industry as a typical lightweight and high-strength material. Due to the long-span space structure is particularly sensitive to the self weight, the honeycomb panel can be reliably connected to single-layer aluminum alloy latticed shell to form a new type of composite latticed shell. The results of previous research shows that the structure significantly improves the overall stiffness and stability of the single-layer aluminum alloy latticed shell. In order to explore the performance of the joint work between the honeycomb panel and the aluminum alloy rod, and the simplified calculation method of this kind of composite structure, three groups of aluminum alloy honeycomb panel-beam composite grid structure specimens were designed and manufactured to carry out the bearing capacity test, and the refined finite element model was established to carry out the elastic-plastic analysis. Finally, based on the theoretical analysis, the calculation formulas of equivalent bending stiffness and equivalent membrane stiffness were put forward.
Keywords: aluminum alloy honeycomb panel; single-layer aluminum alloy latticed shell; aluminum alloy honeycomb panel-beam composite grid; elastic-plastic analysis; equivalent bending stiffness; equivalent membrane stiffness
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