在移动荷载下钢筋混凝土T梁的梁板结合面受力性能的非线性有限元分析

Nonlinear Finite Element Analysis of Forces at Flange-Web Connection in R. C. T-beams under Moving Wheel Load

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 thesis, the forces acting on flange-web connections of R. C. T-beam with hunched flanges under moving load are analysed by Nonlinear Finite Ele- ment Method (NFEM) and the nonlinear material constitutive relation dealing with the effect of concrete cracking and closing of the crack is presented. A computational program is compiled in FORTRAN language. Two full sized T-beams have been tested and the calculated and measured values agreed quite well.