建筑钢结构进展2025，Vol.27Issue(6)：13-22,10.DOI:10.13969/j.jzgjgjz.20240123001
多钢种混用钢梁滞回性能试验研究与有限元分析
Experimental Research and Finite Element Analysis on Hysteretic Performance of Hybrid Steel Beams
摘要
Abstract
Four H-shaped steel beam specimens were designed and manufactured.The failure modes,hysteretic curves,skeleton curves and ductility of specimens under different height-to-thickness ratio of web and strength grade combination of steel were obtained through quasi-static experiments,so as to evaluate the hysteretic performance of specimens.Then the finite element software ABAQUS was used to simulate and verify the experimental results.The effects of different height-to-thickness ratio of web and strength grade combination on hysteretic performance of steel beams were further supplemented by parametric analysis.The results show that,with the reduction of the height-to-thickness ratio of the web,the ductility and energy dissipation capacity of the steel beams are improved,and the degree of improvement of the ductility of the steel beams by increasing the thickness of the web is greater than the degree of improvement of the ultimate load carrying capacity.Compared with the steel beams made of a single steel grade,the ultimate load carrying capacity of the hybrid steel beam is improved by 17.4%,and the ductility is reduced by 5.6%.With the increase of the strength grade of the flanges of the hybrid steel beam,the degree of improvement in the ultimate load carrying capacity and the degree of reduction in the ductility increase continuously.关键词
多钢种混用钢梁/腹板高厚比/延性/滞回性能/翼缘强度等级/有限元分析Key words
hybrid steel beam/height-to-thickness ratio of the web/ductility/hysteretic performance/strength grade of flange/finite element analysis分类
土木建筑引用本文复制引用
朱爱珠,李正,冷荣,余震,王佳盟..多钢种混用钢梁滞回性能试验研究与有限元分析[J].建筑钢结构进展,2025,27(6):13-22,10.基金项目
国家自然科学基金(52078230) （52078230）
