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利用大型通用有限元程序ANSYS,采用三维弹塑性实体有限元法,对50 m预应力混凝土简支T梁试验,进行全过程仿真计算分析,获取T梁试验全程的变形、应力、裂缝等结构响应发展规律,对梁应力发展规律、重分布规律进行研究,对计算模型的适用性进行验证,对影响梁受力性能的若干因素进行了分析,并对T梁仿真计算中的材料模型、建模策略、计算方法等相关技术进行了研究,探索适合T梁有限元仿真计算的方法。
The large-scale finite element program ANSYS was used to simulate the whole process of 50 m prestressed concrete simply supported T-beam test using the three-dimensional elasto-plastic solid finite element method to obtain structural responses such as deformation, stress and crack throughout the T-beam test The law of development, the law of the development of the beam stress and the redistribution rule are studied, the applicability of the calculation model is verified, and several factors that affect the performance of the beam are analyzed. The material model, modeling strategy, Calculation methods and other related technologies have been studied to explore suitable for T beam finite element simulation calculation method.