采用铁素体不锈钢的圆形不锈钢管混凝土柱的设计方法研究
Design method of concrete-filled circular stainless steel tubular columns using ferritic stainless steel
黄金星1
作者信息
- 1. 福建路港(集团)有限公司,泉州 362000
- 折叠
摘要
为研究采用铁素体不锈钢的圆形不锈钢管混凝土短柱的轴压性能,首先建立并验证其有限元模型,然后利用该模型创建典型算例数据库.基于算例数据库分析径厚比、名义屈服强度、混凝土强度等参数对其轴压性能的影响规律,并基于该有限元算例数据库验证现有圆钢管混凝土短柱设计方法的有效性.最后建议了采用铁素体不锈钢的圆形不锈钢管混凝土短柱的轴压承载力、轴压刚度和峰值应变的简化模型.简化计算结果和有限元计算结果吻合良好.
Abstract
To study the axial compressive behaviour of the concrete-filled circular stainless steel tubular stub columns using ferritic stainless steel,its finite element model was first of all established and verified.The model was then used to create a database of typical samples.Based on the samples database,the influences of parameters such as the diameter-thickness ratio,nominal yield strength and concrete strength on its axial compressive behaviour were analyzed.And the validity of existing design approaches for the concrete-filled circular steel tubular stub column were verified using the sample database.Finally,simplified models of the axial compressive bearing capacity,axial compressive stiffness and peak strain were rec-ommended for the concrete-filled circular stainless steel tubular stub columns using ferritic stainless steel.The results obtained by using the simplified models match well with the fi-nite element results.
关键词
采用铁素体不锈钢的圆形不锈钢管混凝土柱/轴压承载力/刚度/峰值应变Key words
concrete-filled circular stainless steel tubular columns using ferritic stainless steel/axial compressive bearing capacity/stiffness/peak strain引用本文复制引用
基金项目
福建省自然科学基金资助项目(2021J01603)
泉州市科技计划项目(2021C015R)
出版年
2024
NETL
NSTL
维普
万方数据