Behavior of welded CFT column to H-beam connections with external stiffeners

Kyung Jae Shin; Young Ju Kim; Young Suk Oh; Tae Sup Moon

doi:10.1016/j.engstruct.2004.06.016

Behavior of welded CFT column to H-beam connections with external stiffeners

Kyung Jae Shin, Young Ju Kim, Young Suk Oh, Tae Sup Moon

School of Architecture

Research output: Contribution to journal › Article › peer-review

109 Scopus citations

Abstract

This paper focuses on the experimental and analytical behavior of concrete filled tubular (CFT) column to H-beam welded moment connections with external T-stiffeners. Six full-scale specimens were tested cyclically. All specimens were designed and manufactured using the following main test parameters: (a) the strength ratio of the horizontal stiffener to the beam flange; and (b) the strength ratio of the vertical stiffener to the beam flange. Three types of failure modes, horizontal stiffeners failure, vertical stiffener failure and beam failure, were obtained. The connections reinforced with T-stiffeners having 130% of strength to beam flanges showed stable hysteretic behavior and good ductility. The ABAQUS finite element package was used to simulate the experimental behavior. The results obtained from the finite element were evaluated by comparing the load-displacement responses and the potential of failure modes.

Original language	English
Pages (from-to)	1877-1887
Number of pages	11
Journal	Engineering Structures
Volume	26
Issue number	13
DOIs	https://doi.org/10.1016/j.engstruct.2004.06.016
State	Published - Nov 2004

Keywords

Concrete filled tube (CFT)
Moment-resisting frame
Plastic rotation
T-stiffener

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10.1016/j.engstruct.2004.06.016

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title = "Behavior of welded CFT column to H-beam connections with external stiffeners",

abstract = "This paper focuses on the experimental and analytical behavior of concrete filled tubular (CFT) column to H-beam welded moment connections with external T-stiffeners. Six full-scale specimens were tested cyclically. All specimens were designed and manufactured using the following main test parameters: (a) the strength ratio of the horizontal stiffener to the beam flange; and (b) the strength ratio of the vertical stiffener to the beam flange. Three types of failure modes, horizontal stiffeners failure, vertical stiffener failure and beam failure, were obtained. The connections reinforced with T-stiffeners having 130% of strength to beam flanges showed stable hysteretic behavior and good ductility. The ABAQUS finite element package was used to simulate the experimental behavior. The results obtained from the finite element were evaluated by comparing the load-displacement responses and the potential of failure modes.",

keywords = "Concrete filled tube (CFT), Moment-resisting frame, Plastic rotation, T-stiffener",

author = "Shin, {Kyung Jae} and Kim, {Young Ju} and Oh, {Young Suk} and Moon, {Tae Sup}",

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AU - Shin, Kyung Jae

AU - Kim, Young Ju

AU - Oh, Young Suk

AU - Moon, Tae Sup

PY - 2004/11

Y1 - 2004/11

N2 - This paper focuses on the experimental and analytical behavior of concrete filled tubular (CFT) column to H-beam welded moment connections with external T-stiffeners. Six full-scale specimens were tested cyclically. All specimens were designed and manufactured using the following main test parameters: (a) the strength ratio of the horizontal stiffener to the beam flange; and (b) the strength ratio of the vertical stiffener to the beam flange. Three types of failure modes, horizontal stiffeners failure, vertical stiffener failure and beam failure, were obtained. The connections reinforced with T-stiffeners having 130% of strength to beam flanges showed stable hysteretic behavior and good ductility. The ABAQUS finite element package was used to simulate the experimental behavior. The results obtained from the finite element were evaluated by comparing the load-displacement responses and the potential of failure modes.

AB - This paper focuses on the experimental and analytical behavior of concrete filled tubular (CFT) column to H-beam welded moment connections with external T-stiffeners. Six full-scale specimens were tested cyclically. All specimens were designed and manufactured using the following main test parameters: (a) the strength ratio of the horizontal stiffener to the beam flange; and (b) the strength ratio of the vertical stiffener to the beam flange. Three types of failure modes, horizontal stiffeners failure, vertical stiffener failure and beam failure, were obtained. The connections reinforced with T-stiffeners having 130% of strength to beam flanges showed stable hysteretic behavior and good ductility. The ABAQUS finite element package was used to simulate the experimental behavior. The results obtained from the finite element were evaluated by comparing the load-displacement responses and the potential of failure modes.

KW - Concrete filled tube (CFT)

KW - Moment-resisting frame

KW - Plastic rotation

KW - T-stiffener

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SP - 1877

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JO - Engineering Structures

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ER -

Behavior of welded CFT column to H-beam connections with external stiffeners

Abstract

Keywords

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