新型外包钢-砼组合梁弯剪扭的非线性有限元模拟

Encased Steel-Nonlinear Finite Element Simulation of Concrete Composite Beam Bending and Shearing Torsion

基于3根新型外包钢-混凝土"T"形截面组合梁在弯剪扭作用下的试验成果,采用ANYSY参数化程序设计语言(APDL)编制了命令流,对弯剪扭作用下组合梁的受扭性能进行了非线性有限元分析(FEM)。FEM分析考虑了钢筋与混凝土间的相互作用以及钢与混凝土间的相互作用,较好地模拟了新型外包钢-混凝土"T"形截面组合梁的受力、破坏全过程,从而验证了运用ANYSY对构件受扭性能进行模拟计算的有效性,为组合梁设计提供了实用的计算软件。

Based on the three new steel-encased concrete ＂T＂ shaped cross-section composite beams under bending and shearing test results in torsion, using ANYSY parametric programming language（APDL）prepared a command stream, a combination of shear and torsion beam bending under the torsion performance nonlinear finite element analysis（FEM）. FEM analysis takes into account the interaction between steel and concrete, and the interaction between steel and concrete, and has a good simulation of the stress and failure process of the new type of composite beam with T shaped section, which verifies the effectiveness of using ANYSY to simulate the performance of the component.