建筑钢结构进展2024，Vol.26Issue(8)：11-18,8.DOI:10.13969/j.cnki.cn31-1893.2024.08.002
内置型钢的圆形不锈钢管混凝土构件的抗弯性能
Flexural Behavior of Circular Steel Reinforced Concrete-Filled Stainless Steel Tubular Members
摘要
Abstract
In this paper,a finite element(FE)model was used to study the pure bending behaviors of the circular steel reinforced concrete-filled stainless steel tubular(SRCFSST)members.The FE calculation results were in a good agreement with the test results.The flexural resistance of the typical circular SRCFSST member was 111.33%higher than that of the concrete-filled stainless steel tubular(CFSST)counterpart.The bending moment taken by the concrete of the typical circular SRCFSST member was also 23.31%higher than that of the CFSST counterpart.Owing to the increasing confinement on the concrete in the compression zone formed by the steel tube and the flange of the profiled steel,the concrete strength in the compression zone was increased by about 20%.The flexural stiffness and resistance of the circular SRCFSST specimen increased with the concrete strength,stainless steel ratio,profiled steel ratio,and gyration radius ratio.The flexural resistance of the circular SRCFSST specimen increased with the yield strength of the stainless steel or the profiled steel.Simplified models for predicting the flexural stiffness and flexural resistance of the circular SRCFSST member were finally proposed.关键词
内置型钢的圆形不锈钢管混凝土/有限元模型/抗弯承载力/抗弯刚度/简化模型Key words
steel reinforced concrete-filled stainless steel tube/finite element model/flexural capacity/flexural stiffness/simplified model分类
建筑与水利引用本文复制引用
王志滨,张铋晗,林万福,柯丞樑..内置型钢的圆形不锈钢管混凝土构件的抗弯性能[J].建筑钢结构进展,2024,26(8):11-18,8.基金项目
国家自然科学基金(52178122),福建省自然科学基金(2021J01603),泉州市科技计划项目(2021C015R) （52178122）
