Paper Title:
Experimental Study on the Influence of Boundary Condition on the Behavioral Characteristics of CFT Square Columns under Constant Axial Load upon a Fire
  Abstract

The temperature of the steel tube of a CFT column rises rapidly upon a fire causing the deterioration of its strength, while the concrete inside of the tube having large heat capacity provides fire-resistance performance. In order to employ CFT columns as fire-resistant structure, it is necessary to conduct studies on the factors exerting influence on structural capacities and the influence associated with each condition. Concrete’s compressive strength, cross-section size, axial load ratio and boundary condition are the major factors which are influential in fire-resistance performance. In particular, boundary condition between columns and beams is one of the major factors which decide fire-resistance performance because it exerts influence on load carrying capacity. The result of the test conducted in this study showed that fire-resistance time of 106 minutes was secured in the specimens with clamped ends and that of 89 minutes in those with pinned ends when cross-section size was 360mm by 360mm. In the specimens with cross-section size of 280 mm × 280mm, fire-resistance time of 113 minutes was secured under the condition of clamped ends and that of 78 minutes was secured under the condition of pinned ends.

  Info
Periodical
Chapter
Chapter 3: Strengthening of Structures under Extreme Loading
Edited by
Ezio Cadoni and Marco di Prisco
Pages
521-526
DOI
10.4028/www.scientific.net/AMM.82.521
Citation
H. Y. Kim, K. H. Park, K. H. Kwon, "Experimental Study on the Influence of Boundary Condition on the Behavioral Characteristics of CFT Square Columns under Constant Axial Load upon a Fire", Applied Mechanics and Materials, Vol. 82, pp. 521-526, 2011
Online since
July 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Jian Zhong Li, Fei Hu Shen, Mei Gang Guo
Abstract:In conventional electrical discharge machining (EDM), the workpiece material is considered as homogenous material. When a micro feature is...
927
Authors: Ran Pan, Kang Sheng Zhang, Zhen Jia
Chapter 3: Materials Forming
Abstract:With the development of cross-wedge rolling (CWR) process in recent years, the processing boundary of parts by means of CWR has witnessed a...
775
Authors: Yuan Liang
Chapter 7: Heating, Gas Supply, Ventilation and Air Conditioning Works
Abstract:In order to analysis influence on indoor thermal environment with surface boundary which are the first boundary condition and the second...
2756
Authors: Min Jae Shin, Jae Duk Hwang, Chae Sil Kim, Soo Yong Cho
Chapter 4: Mechanical Engineering
Abstract:As the pad of a tilting pad bearing has invisible, three dimensional complicated movements around its pivot point inside the bearing case,...
620
Authors: Jin Hee Ahn, Shigenobu Kainuma, In Tae Kim, Young Soo Jeong
Chapter 3: Construction and Materials Science
Abstract:Shear behaviors of a web panel are changed by web boundary conditions and web panel with free web boundary has been reported by severe...
120