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T形钢箱柱压-弯极限承载力分析

Analysis on Ultimate Bearing Capacity on T-shaped Steel Box Column under Combined Action of Axial Forces&Bending Moment
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摘要 与传统的实腹式钢异形柱相比,T形钢箱柱具有更大的扭转惯性矩,可解决钢框架柱角出露问题,具有广阔的工程运用前景,但目前仍缺少一套简单有效的设计方法。对同时承受轴向压力和弯矩作用的T形钢箱柱建立有限元模型,针对长细比、宽厚比2个影响指标做了分析,绘制出弯矩-轴力关系曲线;给出了T形钢箱柱在弯矩-轴力组合作用下的极限承载力计算方法,为工程上同类项目的应用提供了参考依据。 Compared with the traditional solid-web steel special-shaped column,T-shaped steel box column provides greater torsional moment of inertia,which can solve problem of exposed steel frame column corners,also has broad engineering application prospects,but there is still a lack of a simple and effective design method.A finite element model is established for T-shaped steel box column that is simultaneously subjected to axial pressure and bending moment,two influencing indicators of slenderness ratio and width-thickness ratio are analyzed,then relationship curve between bending moment and axial force is drawn;and calculation method of ultimate bearing capacity value of T-shaped steel box column under combined action of axial force and bending moment has been given.The research provides a reference for application of similar projects in engineering.
作者 严辛 陈鑫 杜渭辉 Yan Xin;Chen Xin;Du Wei-hui
出处 《建筑技术开发》 2021年第18期15-17,共3页 Building Technology Development
关键词 T形钢箱柱 极限承载力 有限元模型 T-shaped steel box column ultimate bearing capacity finite element model
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