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本文采用非线性有限元法分析钢筋混凝土T梁结合面受力性能,考虑了翼缘板的变截面和荷载移动的影响,提出了考虑混凝土开裂及裂缝闭合的非线性本构关系。用FORTR—AN语言编写了电算程序,并做了2片T梁模型试验;其试验结果与理论计算符合较好。
In this paper, the nonlinear finite element method is used to analyze the mechanical behavior of reinforced concrete T-beams. Considering the influence of the variable cross-section and load-displacement of the flange plates, a nonlinear constitutive relation considering the cracking of concrete and the closure of cracks is proposed. Compile the computer program with FORTR-AN and do two T-beam model tests. The experimental results are in good agreement with the theoretical calculation.