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鋁合金蜂窩板?桿組合網(wǎng)格結(jié)構(gòu)的等效剛度研究
王 鋼, 趙才其, 顧 業(yè), 馬 軍
摘 要

(東南大學(xué)混凝土及預(yù)應(yīng)力混凝土結(jié)構(gòu)教育部重點實驗室, 南京 210096)

摘要: 鋁合金蜂窩板作為典型的輕質(zhì)高強材料已被廣泛應(yīng)用于航空航天領(lǐng)域。 由于大跨空間結(jié)構(gòu)對自重特別敏感,為此將蜂窩板與單層鋁合金網(wǎng)殼可靠連接,形成一種新型組合網(wǎng)殼,前期研究結(jié)果表明,該結(jié)構(gòu)顯著提高了單層鋁合金網(wǎng)殼的整體剛度及穩(wěn)定性。 為探究蜂窩板與鋁合金桿之間共同工作的性能,以及該類組合結(jié)構(gòu)的簡化計算方法,設(shè)計制作了 3 組鋁合金蜂窩板?桿組合網(wǎng)格結(jié)構(gòu)試件開展承載力試驗,并建立精細化有限元模型,進行了彈塑性分析,最后在理論分析的基礎(chǔ)上提出了等效抗彎剛度及等效薄膜剛度的計算公式。

關(guān)鍵詞: 鋁合金蜂窩板; 單層鋁合金網(wǎng)殼; 鋁合金蜂窩板?桿組合網(wǎng)格; 彈塑性分析; 等效抗彎剛度; 等效薄膜剛度

中圖分類號:TU391 文獻標(biāo)志碼:A 文章編號:1002?848X(2022)12?0031?05

 

DOI:10. 19701 / j. jzjg. 20201004

 

Study on equivalent stiffness of aluminum alloy honeycomb panel?beam composite grid structure

WANG Gang, ZHAO Caiqi, GU Ye, MA Jun

(Key Laboratory of Concrete and Prestressed Concrete Structures of the Ministry of Education,

Southeast University, Nanjing 210096, China)

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

∗國家自然科學(xué)基金項目(51578136)。
第一作者:王鋼,博士,一級注冊結(jié)構(gòu)工程師,主要從事復(fù)雜結(jié)構(gòu)分析與研究工作,Email: 707509167@ qq.com。
通信作者:趙才其,博士,副教授,博士生導(dǎo)師,主要從事大跨空間結(jié)構(gòu)研究,Email:101000815@ seu.edu.cn。
 
[引用本文] 王鋼,趙才其,顧業(yè),等.鋁合金蜂窩板?桿組合網(wǎng)格結(jié)構(gòu)的等效剛度研究[ J]. 建筑結(jié)構(gòu),2022,52(12):31?35,94. WANG Gang,ZHAO Caiqi,GU Ye,et al. Study on equivalent stiffness of aluminum alloy honeycomb panel?beam composite grid structure[J]. Building Structure,2022,52(12):31?35,94.
 
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