钢结构梁柱加固节点框架损伤演化过程数值模拟分析  

Numerical Simulation Analysis of Damage Evolution Process of Steel Structure Beam Column Reinforced Joint Frame

作　　者：赵峥[1] ZHAO Zheng(School of Architecture and Construction,Jiangsu Vocational Institute of Architectural Technology,Xuzhou 221116,China)

机构地区：[1]江苏建筑职业技术学院建筑建造学院,江苏徐州221116

出　　处：《粉煤灰综合利用》2024年第3期125-130,共6页Fly Ash Comprehensive Utilization

摘　　要：为研究不同因素对钢结构梁柱加固节点框架演化过程损伤的影响,选择4个钢结构梁柱加固节点框架试件作为实验对象,在其他条件不变基础上,改变试件轴压比、钢盖板厚度以及混凝土强度,用ABAQUS软件对钢结构梁柱加固节点框架进行模拟,观察损伤演化过程的应力云图情况,并对屈服位移与峰值位移进行统计。结果表明:轴压比以及钢盖板厚度对受力性能影响不大,混凝土强度对受力性能影响较大,并且随着混凝土强度的增加,钢结构梁柱加固节点框架的承载力也在增加,在节点框架设计时,应适当增加混凝土强度,提高节点框架承载力。To explore the effects of different factors on the damage evolution process of steel structure beam column reinforced joint frames.Four steel structure beam column strengthened joint frame specimens were selected as experimental objects.On the basis of Ceteris paribus,the axial compression ratio of the specimens,the thickness of the steel cover plate and the strength of the concrete were changed.ABAQUS software was used to simulate the steel structure beam column strengthened joint frame,observe the stress nephogram of the damage evolution process,and make statistics on the yield displacement and peak displacement.Conclusion:During the damage process of the steel structure beam column reinforced joint frame,the axial compression ratio and the thickness of the steel cover plate have little effect on the mechanical performance.The concrete strength has a significant impact on the mechanical performance.Moreover,as the concrete strength increases,the bearing capacity of the steel structure beam column reinforced joint frame also increases.In the design of the joint frame,the concrete strength should be appropriately increased to improve the bearing capacity of the joint frame.

关 键 词：钢结构梁柱 加固节点框架 损伤演化过程 数值模拟分析 ABAQUS软件 钢盖板厚度 

分 类 号：TU393[建筑科学—结构工程]