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薄壁鋼結(jié)構(gòu)屈曲驗算方法
劉剛
摘 要

 

(蘇寧環(huán)球集團(tuán),南京 210004)

[摘要]對歐洲現(xiàn)行鋼結(jié)構(gòu)規(guī)范中薄壁鋼結(jié)構(gòu)的屈曲(局部屈曲和整體屈曲)驗算方法——有效寬度法與削減應(yīng)力法進(jìn)行了探討研究,通過原理分析、數(shù)值模擬分析、有限元分析及實例數(shù)據(jù)對比,分析總結(jié)了兩種方法的優(yōu)點(diǎn)與不足,提出了一種新的屈曲驗算方法。通過實例將此驗算方法的計算結(jié)果與試驗、計算機(jī)模擬以及按歐洲規(guī)范中現(xiàn)行方法計算的結(jié)果進(jìn)行比較,驗證了新驗算方法的準(zhǔn)確性與有效性。

[關(guān)鍵詞]薄壁鋼結(jié)構(gòu);局部屈曲;整體屈曲;混合屈曲;歐洲鋼結(jié)構(gòu)規(guī)范

Calculation method for buckling of thin-walled steel structure

Liu Gang(Suning Universal Group,Nanjing 210004China)

Abstract:According to the current European steel structure standards the calculation methods for local buckling and overall buckling instability, including effective width method and reduced stress method, were discussed. Through the principle analysis, numerical simulation analysis, finite element analysis, instance data comparison, the advantages and disadvantages of the two methods were summarized, and a new method had been proposed through theoretical deduction. Through an example, calculation data based on the new method were compared with the experimental data, computer simulation data as well as calculation results based on the exsiting methods in European standards to verify the accuracy and validity of the new method.

Keywords:thin-walled steel structure; local buckling; overall buckling; mixed buckling; European steel structure standards

作者簡介:劉剛,碩士,Email:fywx2002@163.com。

參考文獻(xiàn)

1EC3(DIN EN

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