本文選題：鋼管混凝土結(jié)構(gòu) + 自應(yīng)力混凝土　； 參考：《土木工程與管理學(xué)報(bào)》2017年02期

【摘要】：本文通過對(duì)6根短柱,包括2根鋼管鋼纖維自密實(shí)混凝土短柱、1根鋼管自應(yīng)力自密實(shí)混凝土短柱、1根鋼管自密實(shí)混凝土短柱和2根鋼管鋼纖維自應(yīng)力自密實(shí)混凝土短柱的軸心受壓試驗(yàn),分析初始自應(yīng)力和鋼纖維體積摻量對(duì)鋼管鋼纖維自應(yīng)力自密實(shí)混凝土軸心受壓短柱力學(xué)性能的影響。結(jié)果表明,初始自應(yīng)力將顯著提高短柱的承載力和剛度,但會(huì)導(dǎo)致其變形能力明顯下降;摻入鋼纖維可緩解自應(yīng)力引起的變形能力的下降,并改善鋼管對(duì)混凝土的約束作用。
[Abstract]:In this paper, through the analysis of six short columns, The axial compression tests of two steel tube steel fiber self-compacting concrete short columns and one steel tube self-compacting concrete short column and two steel tube steel fiber self-compacting concrete short columns are included. The effects of initial self-stress and volume content of steel fiber on the mechanical properties of steel fiber self-compacting concrete columns under axial compression are analyzed. The results show that the initial self-stress will significantly increase the bearing capacity and stiffness of the short column, but will lead to a significant decrease in its deformation capacity, and the addition of steel fiber can alleviate the decrease of the deformation capacity caused by the self-stress and improve the restraint effect of the steel tube on concrete.
【作者單位】： 武漢大學(xué)土木建筑工程學(xué)院;
【基金】：教育部博士點(diǎn)專項(xiàng)基金項(xiàng)目(20110141110002)
【分類號(hào)】：TU528.572

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本文編號(hào)：1780564