|Table of Contents|

Experiment on Performance of High-strength Concrete-filled Square Steel Tube Long Columns with Inner CFRP Circular Tube Under Axial Compression(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2009年02期
Page:
21-25
Research Field:
Publishing date:
2009-06-20

Info

Title:
Experiment on Performance of High-strength Concrete-filled Square Steel Tube Long Columns with Inner CFRP Circular Tube Under Axial Compression
Author(s):
LI Guo-chang;  LUO Jiang-long;  NIE Yao;  REN Qiu-shi
School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, Liaoning, China
Keywords:
inner CFRP circular tube;  high-strength concrete-filled square steel tube;  number of CFRP layer;  steel ratio;  slenderness ratio;  bearing capacity
PACS:
TU392.3
DOI:
-
Abstract:
In order to study the performance of columns of high-strength concrete-filled square steel tubes with inner carbon fiber reinforced polymer(CFRP)circular tube, the contrast tests of bearing capacities of 4 columns of high-strength concrete-filled square steel tubes with inner CFRP circular tube, and 4 columns of high-strength concrete-filled square steel tubes were made. Curves on the relationship of stress-strain were drawn. The whole process analysis on the performance of columns of high-strength concrete-filled square steel tubes was carried out. The results show that under the same steel ratio, the bearing capacity of high-strength concrete-filled square steel tube column with the same number of CFRP layers decreases when slenderness ratio increases. Under the same slenderness ratio, with increase of the number of CFRP layers, the bearing capacity of high-strength concrete-filled square steel tube column is obviously improved, the confining effect on the core concrete is better and the yield time of structural member is prolonged.

References:

[1] SHANMUGAM N E,LAKSHMI B.State of the Art Report on Steel-concrete Composite Columns[J].Journal of Constructional Steel Research,2001,57(10):1041-1080.
[2]SCHNEIDER S P.Axially Loaded Concrete-filled Steel Tubes[J].Journal of Structural Engineering,1998,124(10):1125-1138.
[3]钟善桐.钢管混凝土统一理论--研究与应用[M].北京:清华大学出版社,2006. ZHONG Shan-tong.Concrete-filled Steel Tube United Theory-Research and Application[M].Beijing:Tsinghua University Press,2006.
[4]韩林海,杨有福.现代钢管混凝土结构技术[M].北京:中国建筑工业出版社,2007. HAN Lin-hai,YANG You-fu.Modern Concrete-filled Steel Tube Structure Technology[M].Beijing:China Architecture & Building Press,2007.
[5]韩林海.钢管混凝土结构--理论与实践[M].2版.北京:科学出版社,2007. HAN Lin-hai.Concrete-filled Steel Tubular Structures-Theory and Practice[M].2nd ed.Beijing:Science Press,2007.
[6]李 惠.高强混凝土及其组合结构[M].北京:科学出版社,2004. LI Hui.High-strength Concrete and Its Composite Structure[M].Beijing:Science Press,2004.
[7]TENG J G,HUANG Y L,LAM L,et al.Theoretical Model for Fiber-reinforced Polymer-confined Concrete[J].Journal of Composites for Construction,2007,11(2):201-210.
[8]陶 忠,于 清.新型组合结构柱--试验、理论与方法[M].北京:科学出版社,2006. TAO Zhong,YU Qing.New Composite Structure Column-Test,Theory and Method[M].Beijing:Science Press,2006.
[9]李帼昌,麻 丽,杨景利,等.内置CFRP圆管的方钢管高强混凝土轴压短柱承载力计算初探[J].沈阳建筑大学学报:自然科学版,2008,24(1):62-66. LI Guo-chang,MA Li,YANG Jing-li,et al.Bearing Capacity of Short Columns of High-strength Concrete Filled Square Steel Tubular with Inner CFRP Circular Tubular Under Axially Compressive Load[J].Journal of Shenyang Jianzhu University:Natural Science,2008,24(1):62-66.
[10]张淑云,白国良,高志刚.高层组合框架-混凝土筒体混合结构静力数值分析[J].西安科技大学学报,2009,29(1):36-40. ZHANG Shu-yun,BAI Guo-liang,GAO Zhi-gang.Static Characteristics of Core-RC and Composite Frame Hybrid Structure in High-rise Buildings[J].Journal of Xi'an University of Science and Technology,2009,29(1):36-40.
[11]张淑云,白国良,李红星,等.钢筋混凝土框架异型节点抗剪承载力研究[J].西安科技大学学报,2006,26(2):170-174. ZHANG Shu-yun,BAI Guo-liang,LI Hong-xing,et al.Anti-shear Capacity of Abnormal Joints of RC Frame[J].Journal of Xi'an University of Science and Technology,2006,26(2):170-174.
[12]周天华,郭彦利,卢林枫,等.方钢管混凝土柱-钢梁节点的非线性有限元分析[J].西安科技大学学报,2005,25(3):283-287. ZHOU Tian-hua,GUO Yan-li,LU Lin-feng,et al.Nonlinear FEM Analysis of Bearing Capacity Behavior of Concrete-filled Square Tubular Column and Steel Beam Joints[J].Journal of Xi'an University of Science and Technology,2005,25(3):283-287.

Memo

Memo:
-
Last Update: 2009-06-20