科技创新与应用2024，Vol.14Issue(5)：77-79,83,4.DOI:10.19981/j.CN23-1581/G3.2024.05.019
多点荷载作用下钢筋混凝土梁受力特性及损伤演化规律研究
谢玮玥1
作者信息
- 1. 贵州双龙航空港置业有限公司,贵阳 520002
- 折叠
摘要
Abstract
The reinforced concrete structure has a good tensile and compression performance,so it has been widely applied in all kinds of construction fields.As one of the most important structures in modern construction projects,the damage properties of RC structures have always been concerned about in engineering field.In this paper,a numerical simulation model of RC beam under multi-point load is developed using ABAQUS FEM software.The results show that in the course of vertical displacement,the tension stress is concentrated at the bottom of the beam,while the compressive stress is located at the top of the beam;with the continuous action of external load,the stress formed on the longitudinal steel bar will be transferred to the circumferential stirrups;in the compression zone of the pure bending section of the reinforced concrete beam,the strain of the concrete is greater than the maximum compressive strain of the material,which leads to the damage and failure of the concrete in the compression area.In the stress process of reinforced concrete beam,the strength grade of concrete and the strength grade of tensile steel bar play a decisive role in the overall strength of the beam.关键词
钢筋混凝土梁/多点加载/受力特性/损伤演化/数值仿真Key words
reinforced concrete beam/multi-point loading/stress characteristics/damage evolution/numerical simulation分类
建筑与水利引用本文复制引用
谢玮玥..多点荷载作用下钢筋混凝土梁受力特性及损伤演化规律研究[J].科技创新与应用,2024,14(5):77-79,83,4.
