EXPERIMENTAL RESEARCH ON BEARING CAPACITY OF ECCENTRICALLY LOADED R.C. COLUMNS WITH HRBF500 STEEL BARS
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摘要: 通过对9根HRBF500钢筋混凝土偏心受压柱和1根HRB400钢筋混凝土偏心受压柱的试验,分析了荷载-钢筋应变、混凝土应变曲线以及破坏形态的特点。在试验和理论分析的基础上,提出HRBF500钢筋在混凝土柱中的强度设计取值为450 MPa和受压承载力计算公式的建议。Abstract: Based on the experiments of nine eccentrically loaded columns with HRBF500 steel bars and one eccentrically loaded column with HRB400 steel bars,the load-strain curves of steel bars,strain curves of concrete,as well as the characteristics of failure modes were analyzed.The design value of HRBF500 steel bar being 450 MPa in column and the formula of calculating the ultimate strength were proposed based on the experiment and the comprehensive theoretical analysis.
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