[1]郑莲琼,魏常贵,陈敏,等.圆不锈钢管混凝土曲杆受压力学性能研究[J].西安建筑科技大学学报(自然科学版),2018,50(04):491-499，519.[doi:10.15986/j.1006-7930.2018.04.005]
　ZHENG Lianqiong,WEI Changgui,CHEN Min,et al.Behaviour of circular curved concrete filled stainless steel tubular struts under compression[J].J. Xi’an Univ. of Arch. & Tech.(Natural Science Edition),2018,50(04):491-499，519.[doi:10.15986/j.1006-7930.2018.04.005]
点击复制

圆不锈钢管混凝土曲杆受压力学性能研究()
分享到：

西安建筑科技大学学报（自然科学版）[ISSN:1006-7930/CN:61-1295/TU]

卷:
50
期数:
2018年04期
页码:
491-499，519
栏目:
出版日期:
2018-08-31

文章信息/Info

Title:
Behaviour of circular curved concrete filled stainless steel tubular struts under compression
文章编号:
1006-7930(2018)04-0491-09
作者:
郑莲琼1; 2; 魏常贵1; 陈敏1; 郑永乾1; 2
(1. 福建工程学院 土木工程学院,福建 福州 350118 ;2. 福建省土木工程新技术与信息化重点实验室,福建 福州 350118 )
Author(s):
ZHENG Lianqiong1; 2;  WEI Changgui1;  CHEN Min1;  ZHENG Yongqian1; 2
(1. College of Civil Engineering, Fujian University of Technology, Fuzhou 350118, China; 2. Fujian Provincial Key Laboratory of Advanced Technology and Informatization in Civil Engineering, Fuzhou 350118, China)
关键词:
不锈钢管混凝土曲杆; 受压试验; 初弯曲; 有限元分析; 承载力
Keywords:
curved concrete filled stainless steel tubular struts;  compression test;  initial deflection;  finite element analysis;  load-carrying capacity
分类号:
TU 398.9
DOI:
10.15986/j.1006-7930.2018.04.005
文献标志码:
A
摘要:
制作了12根不锈钢管混凝土曲杆和3根不锈钢管混凝土直杆、1根空不锈钢管曲杆对比试件，对曲杆进行两端中心受压试验，对直杆进行偏心受压试验.试验的主要参数是名义长细比（λn=24、48和72）和初始弯曲度（u0=0~140 mm）.试验结果表明，随着试件名义长细比和初始弯曲度的增大，不锈钢管混凝土曲杆的初始刚度减小，极限承载力也随之降低；不锈钢管混凝土曲杆与不锈钢管混凝土偏压直杆的受力性能及破坏形态总体上类似，其承载力和刚度均略高于相应的偏压直杆.基于有限元分析软件ABAQUS 建立了数值模型，对不锈钢管混凝土曲杆受力特性进行分析，有限元分析结果和试验结果吻合良好.在此基础上，对不锈钢管混凝土曲杆受压承载力进行了参数分析，结果表明，不锈钢管混凝土曲杆承载力较相应的偏压直杆提高均在5%以内，采用现有规范中计算普通钢管混凝土压弯构件承载力的方法计算不锈钢管混凝土曲杆受压承载力偏于保守
Abstract:
A total of 16 specimens, including 12 curved concrete filled stainless steel tube (CCFSST), 3 straight concrete filled stainless steel tube (CFSST) and one curved hollow stainless steel tube (CHSST) were tested to study the influence of slenderness ratio (24, 48 and 72) and initial deflection (0-140mm) on the performance of the circular curved composite members. The CCFSST members were concentrically loaded at the specimen ends, the behaviour and failure modes of the CCFSST members were investigated and compared with those of conventional CHSST and eccentrically-loaded CFSST members. The test results showed that the failure mode of CCFSST members is overall buckling failure, with increasing slenderness ratio ( λn) and initial deflection (u0) at the mid-height, the initial stiffness and the ultimate loads decrease. In the post-peak stage, the load decrease becomes slower for CCFSST specimens with larger λn or u0. It can be found that, the performance of CCFSST members is similar to that of reference eccentrically-loaded CFSST members, and the load-carrying capacity of CCFSST member subjected to concentrial compression is slightly higher than those of the corresponding straight CFSST columns. Finite-element models (FEMs) for analyzing the mechanical performance of curved circular stainless steel tubular struts were established and verified by the test results. The parametric analysis shows that the difference between load-carrying capacity of CCFSST and CFSST members is within 5%. After that, comparisons were made between the experimental results and the predicted load-carrying capacity using existing design code DBJ/T 13-51-2010. It turned out that the result is conservative.

参考文献/References:

References

[1]PACKER J A, HENDERSON J E. 空心管结构连接设计指南[M].曹俊杰,译.北京:科学出版社, 1997.

PACKER J A, HENDERSON J E. Design guide for connection of hollow tube structure[M]. CAO Junjie, translated. Beijing: Science Press, 1997.

[2]韩林海，陶忠，王文达. 现代组合结构和混合结构:试验、理论和方法[M].北京：科学出版社，2009.

HAN Linhai, TAO Zhong, WANG Wenda. Advanced composite and mixed structures: testing, theory and design approach[M]. Beijing: Science Press,2009.

[3]YOUNG B, ELLOBODY E. Experimental investigation of concrete-filled cold-formed high strength stainless steel tube columns [J]. Journal of Constructional Steel Research, 2006, 62(5): 484-492.

[4]LAM D, GARDNER L. Structural design of stainless steel concrete filled columns [J]. Journal of Constructional Steel Research, 2008, 64(2):1275-1282.

[5]UY B, TAO Z, HAN L H. Behaviour of short and slender concrete-filled stainless steel tubular columns [J]. Journal of Construc-tional Steel Research, 2011, 67(3):360-378.

[6]廖飞宇. 圆不锈钢管混凝土轴压力学性能的有限元分析[J]. 福建农林大学学报（自然科学版），2009，38(6)： 659-662.

LIAO Feiyu. Finite element analysis for circular concrete-filled stainless steel tubular column under axial compression [J]. Journal of Fujian Agriculture and Forestry University ( Natural Science Edition), 2009,38(6):659-662.

[7]TAO Z, UY B, LIAO F Y, HAN L H． Nonlinear analysis of concrete-filled square stainless steel stub columns under axial compression [J]. Journal of Constructional Steel Research ，2011，67(11) : 1719-1732.

[8]CHEN Y, FENG R AND WANG L P. Flexural behaviour of concrete-filled stainless steel SHS and RHS tubes [J]. Journal of Constructional Steel Research, 2017, 134:159-171.

[9]CHEN Y, WANG K, FENG R, et al. Flexural behaviour of concrete-filled stainless steel CHS subjected to static loading [J]. Journal of Constructional Steel Research, 2017, 139:30-43.

[10]马国梁.不锈钢管再生混凝土轴压和弯曲性能研究[D].大连：大连理工大学，2013.

MA Guoliang. Studies on compressive and flexural performance of recycled aggregate concrete filled stainless steel tube [D]. Dalian: Dalian University of Technology ,2013.

[11]TAM V W, WANG Z B, TAO Z. Behaviour of recycled aggregate concrete filled stainless steel stub columns [J]. Materials and Structures, 2014, 47(1-2): 293-310.

[12]福建省住房和城乡建设厅.钢管混凝土结构技术规程：DBJ/T 13-51-2010 [S]. 福州：福建省住房和城乡建设厅，2010.

The Housing and Construction Department of Fujian Province.Technical specification for concrete-filled steel tubular structures: DBJ/T 13-51-2010 [S]. Fuzhou: The Housing and Construction Department of Fujian Province ，2010.

[13]RASMUSSEN K J R, BURNS T, BEZKOROVAINY P, et al. Numerical modelling of stainless steel plates in compression [J]. Journal of Constructional Steel Research, 2003, 59(11):1345-1362.

[14]Design of Steel Structure-Part1-4: General Rules-Supplementary Rules for Stainless Steels: EC3.EN 1993-1-4 [S]. Brussels: European Committee for Standardization, 2006.

[15]汪良宾. 不锈钢管混凝土抗拉承载力及压弯构件滞回性能研究[D]. 福州：福州大学，2011.

备注/Memo

备注/Memo:
收稿日期:2017-06-05修改稿日期:2018-07-06
基金项目:国家自然科学基金项目（51578152）
第一作者:郑莲琼(1982－)，女，博士，副教授，主要研究钢与组合结构．E-mail: zhenglianqiong@163.com
更新日期/Last Update: 2018-09-11