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本文研究钢筋混凝土板分层的有限元非线性分析方法。将钢筋混凝土板离散成三角形单元,沿板厚再将板分为五层(其中包括一层钢筋层),考虑混凝土材料的非线性性能,采用Fortran语言编制了计算程序。对四点支承、跨中承受集中荷载的板进行了全过程计算。计算得出了荷载-挠度曲线,裂缝开展图式等。并将荷载-挠度曲线与试验结果进行比较,两者吻合较好。
This paper deals with the finite element nonlinear analysis method for layering reinforced concrete slabs. Disperse the reinforced concrete slab into triangular elements, divide the slab into five layers (including one layer of reinforced layer) along the thickness of the slab. Considering the nonlinear properties of the concrete material, the calculation program is compiled using the Fortran language. The whole process was calculated for the four-point bearing and the board that underwent the concentrated load. The load-deflection curve, crack propagation pattern, etc. are calculated. Comparing the load-deflection curve with the test results, the two are in good agreement.