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本文用有限元法研究钢筋混凝土结构的非线性性能。编制了受弯构件的计算程序。配合钢筋混凝土梁的抗剪试验,对跨中承受两点对称集中荷载的矩形截面简支梁,借助719机进行了全过程计算。计算所得的裂缝开展图、挠度及极限破坏荷载值等与试验结果符合较好。
This paper uses the finite element method to study the nonlinear behavior of reinforced concrete structures. Computation program for bending members was prepared. In combination with the shear test of reinforced concrete beams, the simple-supported beam with rectangular cross-section subjected to two symmetrical loads was used to calculate the whole process by means of 719 machine. The calculated fracture development diagram, deflection and ultimate failure load values are in good agreement with the test results.