【摘要】：以受約束波紋腹板梁為研究對象,利用有限元模型進(jìn)行了截面溫度均勻和不均勻分布對軸向約束波紋腹板梁懸鏈線效應(yīng)影響的對比分析。結(jié)果表明:由于不均勻溫度下產(chǎn)生的熱彎曲效應(yīng),約束鋼梁在受壓階段的豎向撓度更大而梁內(nèi)軸力更小;均勻溫度受約束鋼梁的臨界溫度比不均勻溫度鋼梁高6.2%;不均勻溫度鋼梁的溫度比越小,鋼梁的熱彎曲效應(yīng)越明顯,相應(yīng)的臨界溫度越低。
[Abstract]:The finite element model is used to analyze the effect of uniform and non-uniform section temperature on catenary effect of constrained corrugated web beam. The results show that due to the thermal bending effect at the non-uniform temperature, the vertical deflection of the restrained steel beam is larger and the axial force of the beam is smaller at the compression stage. The critical temperature of uniform temperature constrained steel beam is 6.2 higher than that of non-uniform temperature steel beam, and the smaller the temperature ratio of non-uniform temperature steel beam, the more obvious the thermal bending effect of steel beam is, and the lower the corresponding critical temperature is.
【作者單位】： 山東大學(xué)土建與水利學(xué)院;中通鋼構(gòu)股份有限公司;
【基金】：國家自然科學(xué)基金項(xiàng)目(51578322) 山東省自然科學(xué)基金項(xiàng)目(ZR2015EM041) 山東省重點(diǎn)研發(fā)計劃項(xiàng)目(2016GGX103013)
【分類號】：TU352.5
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本文編號：2268676