PDF全文阅读

赵 峥

（ 江苏建筑职业技术学院 建筑建造学院 ，江苏 徐州 221116)

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。

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 

中图分类号：TU393 

文献标志码：A 

文章编号：1005- 8249 (2024) 03- 0125- 06

DOI：10.19860/j.cnki.issn1005-8249.2024.03.024

ZHAO Zheng

(School of Architecture and Construction , Jiangsu Vocational Institute of Architectural Technology , Xuzhou 221116 , China)

Abstract : 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 .

Keywords : steel structure beams and columns; reinforced node frame; damage evolution process; numerical simulation analysis; ABAQUS software; thickness of steel cover plate

作者简介： 赵 峥 (1972—) , 女，硕士，副教授，研究方向 ：建筑结构和钢结构方面的研究。

收稿日期：2023-07-20