考虑粘结滑移的型钢混凝土结构ANSYS模拟方法研究

介绍了采用ANSYS程序对型钢混凝土(SRC)结构进行非线性有限元数值模拟的实用技术和方法.结合型钢混凝土梁试验试件的数值模拟全过程,对采用ANSYS程序进行型钢混凝土结构数值模拟所涉及到的材料模型定义、几何模型建立、钢筋单元生成、约束条件、粘结滑移模拟、加载控制、计算参数设定以及后处理等问题均进行了全面介绍.重点介绍了型钢混凝土结构ANSYS数值模拟的建模技术和方法,并介绍了采用非线性弹簧单元(Combination39单元)对型钢混凝土结构粘结滑移进行准确模拟的实用方法.文中型钢混凝土梁ANSYS的数值模拟结果与试验结果吻合较好,表明本文提出的型钢混凝土结构ANSYS数值模拟技术可行,可为型钢混凝土结构的数值模拟技术研究、工程设计和理论研究提供有益的依据和参考.

Study on numerical simulation technology for steel reinforced concrete (SRC) structures based on the ANSYS program

Numerical simulation technology and skills for Steel Reinforced Concrete(SRC) structures based on the ANSYS program were introduced in detail.With the introduction of the whole numerical simulation procedure of 12 SRC beam specimens experimented before,the major skills of numerical simulation for SRC structures such as material property definition,establishment of the geometrical models,simulation of the longitudinal reinforced bars and stirrups,the boundary conditions definition and simulation of the bond-slip performance between the steel shape and concrete were wholly presented.In the paper,the establishment methods and numerical simulation methods of bond-slip with nonlinear spring element type-Combination39-were especially presented.The numerical simulation results based on the ANSYS program were proved to be in good agreement with the experimental results,which showed that the numerical simulation technologies and skills for steel reinforced concrete(SRC) structures based on the ANSYS program presented in the paper could be helpful for the former research of numerical simulation the of SRC structures and could also be useful for engineering design and theory researches of SRC structures.