[1]郑莲琼,王杰,刘大海,等.方形复合不锈钢管混凝土柱双向压弯力学性能试验[J].福建理工大学学报,2026,24(01):27-34.[doi:10.3969/j.issn.2097-3853.2026.01.004]
 ZHENG Lianqiong,WANG Jie,LIU Dahai,et al.Experimental study on square composite-sectional concrete-filled stainless steel tubular columns subjected to bi-axial eccentric compression[J].Journal of Fujian University of Technology;,2026,24(01):27-34.[doi:10.3969/j.issn.2097-3853.2026.01.004]
点击复制

方形复合不锈钢管混凝土柱双向压弯力学性能试验()
分享到:

《福建理工大学学报》[ISSN:2097-3853/CN:35-1351/Z]

卷:
第24卷
期数:
2026年01期
页码:
27-34
栏目:
出版日期:
2026-02-25

文章信息/Info

Title:
Experimental study on square composite-sectional concrete-filled stainless steel tubular columns subjected to bi-axial eccentric compression
作者:
郑莲琼王杰刘大海郑宇廷
福建理工大学土木工程学院
Author(s):
ZHENG Lianqiong WANG Jie LIU Dahai ZHENG Yuting
School of Civil Engineering, Fujian University of Technology
关键词:
复合不锈钢管混凝土柱方形截面双向压弯
Keywords:
composite-sectional concrete-filled stainless-steel tubular(CFSST) columnssquare sectionbi-axial eccentric compression
分类号:
TU398.9
DOI:
10.3969/j.issn.2097-3853.2026.01.004
文献标志码:
A
摘要:
为研究双向压弯荷载作用下方形复合不锈钢管混凝土柱的力学性能,开展了4 个复合不锈钢管混凝土试件(SCS 型)和1 个不锈钢管混凝土试件(SS 型)的试验研究,考察的参数为长细比λ(26 和43)、内外钢管尺寸比D/ B(0.42 和0.67)和截面类型(复合不锈钢管混凝土截面和方形不锈钢管混凝土截面)。结果表明,所有试件均在双向压弯荷载作用下发生整体弯曲破坏,柱高中部位置附近外不锈钢管出现明显的鼓曲,复合不锈钢管混凝土柱较不锈钢管混凝土具有更高的刚度和承载力。长细比、内外钢管尺寸比对方形复合不锈钢管混凝土双向压弯试件的承载力有明显影响,随着长细比的增大,试件的承载力下降8.3%~13.6%;内外管尺寸比为0.42 和0.67 的复合不锈钢管混凝土试件承载力较不锈钢管混凝土试件分别提高25.5%和17.8%。采用现有规范《钢管混凝土结构技术规程》(DBJ/ T 13?51?2020)中的计算方法进行方形复合不锈钢管混凝土柱双向压弯试件的承载力计算具有较好的预测精度,但计算值略高于试验值。
Abstract:
In order to investigate the mechanical performance of square composite-sectional concrete-filled stainless-steel tubular (CFSST) columns subjected to bi-axial eccentric compression, an experimental study on five square composite stainless steel tubular concrete specimens was carried out. The main parameters were the slenderness ratio λ (26 and 43), the ratio of the inner and outer steel tube diameters D/B (0.42 and 0.67), and the cross-section type (composite stainless steel tube concrete section and square stainless steel tube concrete section). Results show that, the failure mode of all the specimens were overall bending with obvious buckling occurred in the stainless-steel tubes near the mid-height of the columns under bi-axial eccentric compression for the specimens, composite-sectional CFSST columns exhibit higher stiffness and load-carrying capacity than CFSST columns. The slenderness ratio, the ratio of the inner and outer steel tube diameters have significant effects on the load-carrying capacity of square composite-sectional CFSST columns subjected to bi-axial eccentric compression. As the slenderness ratio increases, the load-carrying capacity of the specimens decreases by 8.3% to13.6%. The bearing capacity of the composite stainless steel tube concrete specimens with the inner and outer tube size ratios of 0.42 and 0.67 was 25.5% and 17.8% higher than that of the stainless steel tube concrete specimens, respectively. The application of current standards for calculating the load carrying capacity of square composite-sectional CFSST columns subjected to bi-axial eccentric compression specimens demonstrates good prediction accuracy, although the calculated values tend to be slightly higher than the experimental results.

参考文献/References:

[1] 方小丹,林斯嘉. 复式钢管高强混凝土柱轴压试验研究[J]. 建筑结构学报,2014,35(4):236-245. [2] 随意,屠永清,张晋峰. 多室式T形钢管混凝土柱在双向偏压下的力学性能研究[J]. 钢结构,2017,32(9):41-46. [3] 李永进,廖飞宇,黄海清. 矩形不锈钢管混凝土柱双向偏压力学性能试验研究[J]. 建筑钢结构进展,2018,20(2):60-66. [4] 李帼昌,曹文正,杨志坚,等. 高强方钢管高强混凝土双向偏压短柱受力性能[J]. 工业建筑,2020,50(10):152-159,193. [5] 钱稼茹,张扬,纪晓东,等. 复合钢管高强混凝土短柱轴心受压性能试验与分析[J]. 建筑结构学报,2011,32(12):162-169. [6] 郑永乾,赖鹏松,何春霞. 方形复合不锈钢管混凝土柱滞回性能研究[J]. 土木工程学报,2019,52(12):36-45,56. [7] 白杨. 外方内圆复合不锈钢管混凝土柱滞回性能试验研究[D]. 泉州:华侨大学,2017. [8] 王志滨,高扬虹,池思源,等. 复式薄壁方钢管混凝土长柱轴压稳定性能研究[J]. 建筑结构学报,2017,38(12):41-48. [9] 王志滨,张万安,池思源,等. 复式薄壁方钢管混凝土构件受弯性能研究[J]. 建筑结构学报,2017,38(7):78-84. [10] 福建省住房和城乡建设厅. 钢管混凝土结构技术规程:DBJ/T 13512020[S]. 北京:中国建筑工业出版社,2020. [11] 国家市场监督管理总局,国家标准化管理委员会. 金属材料 拉伸试验 第1部分:室温试验方法:GB/T 228.1—2021[S]. 北京:中国标准出版社,2021. [12] 中华人民共和国住房和城乡建设部,国家市场监督管理总局. 混凝土物理力学性能试验方法标准:GB/T 50081—2019[S]. 北京:中国建筑工业出版社,2019.

更新日期/Last Update: 2026-02-25