混凝土受弯截面卸载损伤模型的应用研究

Application study on unload damage model of concrete bending section

基于刚度下降在Clough恢复力模型基础上定义了一种混凝土卸载损伤模型,和结构单元与整体损伤指标一起构成完整的损伤指标体系,通过有限元计算实现了对三跨连续梁的损伤评估,该损伤评估方法可以推广到三维框架结构中。

This paper defines a unload damage model of concrete based on concrete stiffness declining with Clough resilience model. This model element damage model and structure global damage model combines one damage evaluation system. The damage evaluation of the three span continuous beams is studied by FEM calculation. This damage evaluation method can be spread in 3D framework structures.