- 摘 要
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(東南大學(xué)土木工程學(xué)院， 南京 211189)
摘要: 以新型模塊化單層鋁合金網(wǎng)殼節(jié)點的受力性能的試驗實測數(shù)據(jù)為基礎(chǔ)，探究該類新型模塊化單層鋁合金網(wǎng)殼節(jié)點的中心區(qū)加強環(huán)、模塊化單元的底板厚度、中心區(qū)加強環(huán)的側(cè)板厚度對節(jié)點抗彎承載力的影響規(guī)律。 運用 ABAQUS 軟件對三種不同構(gòu)造的新型模塊化單層鋁合金網(wǎng)殼節(jié)點進(jìn)行了非線性有限元分析，對新型模塊化單層鋁合金網(wǎng)殼節(jié)點與傳統(tǒng)板式節(jié)點的受力性能進(jìn)行對比分析。 結(jié)果表明:與傳統(tǒng)板式節(jié)點相比，新型模塊化單層鋁合金網(wǎng)殼節(jié)點的平面外抗彎承載力增幅可達(dá) 20%，中心區(qū)加強環(huán)的設(shè)置有效提高了新型模塊化單層鋁合金網(wǎng)殼節(jié)點的抗彎承載力，并使節(jié)點在屈曲后避免發(fā)生脆性破壞。
關(guān)鍵詞: 單層鋁合金網(wǎng)殼； 新型模塊化節(jié)點； 彈塑性分析； 抗彎承載力
中圖分類號:TU313 文獻(xiàn)標(biāo)志碼:A 文章編號:1002￣848X(2022)06￣0044￣05
DOI:10. 19701 / j.jzjg.20200162
Elastic￣plastic analysis of new modular single￣layer aluminum alloy reticulated shell joints
ZHOU Yunwen， ZHAO Caiqi
(School of Civil Engineering， Southeast University， Nanjing 211189， China)
Abstract: Based on the experimental and measured data of the mechanical performance of the new modular single￣layeraluminum alloy reticulated shell joints， the influence of the reinforcing ring in the central area， the thickness of the bottomplate of the modular unit， and the thickness of the side plate of the reinforcing ring in the central area on the flexuralbearing capacity of the new modular single￣layer aluminum alloy reticulated shell joints was explored. The nonlinear finiteelement analysis of three new modular single￣layer aluminum alloy reticulated shell joints with different structures wascarried out， and the mechanical performance of the new modular single￣layer aluminum alloy reticulated shell joints andtraditional plate joints were compared and analyzed by ABAQUS software. The results show that the out￣of￣plane flexuralbearing capacity of the new modular single￣layer aluminum alloy reticulated shell joints can be increased by 20% comparedwith the traditional plate joint. The setting of the reinforcement ring in the central area effectively improves the flexuralbearing capacity of the new modular single￣layer aluminum alloy reticulated shell joints， and prevents the joint from brittlefailure after buckling.
Keywords: single￣layer aluminum alloy reticulated shell； new modular joint； elastic￣plastic analysis； flexuralbearing capacity
∗國家自然科學(xué)基金資助項目(51578136)。
第一作者:周赟文，碩士，主要從事與工民建結(jié)構(gòu)設(shè)計研究，Email: zhouyunwen95@ 163.com。
[引用本文] 周赟文，趙才其. 新型模塊化單層鋁合金網(wǎng)殼節(jié)點的彈塑性分析 [ J]. 建筑結(jié)構(gòu)，2022，52(6):44￣48.ZHOU Yunwen， ZHAO Caiqi. Elastic￣plastic analysis of new modular single￣layer aluminum alloy reticulated shell joints[J]. Building Structure，2022，52(6):44￣48.
