循環(huán)荷載作用下偏心受壓構(gòu)件的滯回性能研究
胡兆同 顧 強
- 摘 要
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胡兆同 （長安大學 西安 710064）顧 強 （西安建筑科技大學 710055）
[提要] 利用雙重非線性殼體有限元方法，對偏心受壓鋼構(gòu)件在循環(huán)荷載作用下的滯回性能進行了計算機模擬，分析了H形截面偏心受壓構(gòu)件的滯回特性；得出了強烈地震作用下，構(gòu)件翼緣寬厚比、腹板高厚比、軸壓比和長細比等參數(shù)對H形截面偏心受壓構(gòu)件滯回性能的影響規(guī)律。
[關鍵詞] 偏心受壓 鋼構(gòu)件 循環(huán)荷載 非線性有限元 滯回性能
Computerized model of hysteretic behavior of the eccentric compressive steel structure members under cyclic loading is carried out based on geometric and material nonlinear finite element method. The hysteretic characteristics of H-section eccentric compressive steel structure members are analysed. The impact law of width to thickness ratio of flange, height to thickness ratio of web,axial compression ratio and slenderness ratio on hysteretic behavior of the H-section eccentric compressive structure members under a strong seismic action are obtained.
Keywords: eccentric compression; cyclic loading; nonlinear finite element method; hysteretic behavior
