A modified moment resisting connection for ductile steel frames (Numerical and experimental investigation)

Farrokhi, Hooman; Danesh, F.; Eshghi, Sassan

doi:10.1016/j.jcsr.2009.04.019

Cited by 38 publications

(11 citation statements)

References 6 publications

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“…To address this issue, Farrokhi et al [20] proposed a reduced plate section connection by drilling holes at cover plates to create an intentional weak point. The drilled flange (DF) connections can shift the stress concentrations from the connection face and, therefore, eliminate unfavourable local beam failure modes that are observed in conventional RBS connections.…”

Section: Introductionmentioning

confidence: 99%

“…The drilled flange (DF) connections can shift the stress concentrations from the connection face and, therefore, eliminate unfavourable local beam failure modes that are observed in conventional RBS connections. Farrokhi et al [20] study showed that DF connections can improve the ductility capacity of the typical RBS and WUF connections. Moreover, the performance of DF connections seems to be less dependent on the weld root quality, since the major nonlinear mechanism takes place adjacent to the drilled holes.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Optimum drilled flange moment resisting connections for seismic regions

Atashzaban

Hajirasouliha

Jazany

et al. 2015

Journal of Constructional Steel Research

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optimum drilled flange moment resisting connections for seismic regions

Atashzaban

Hajirasouliha

Jazany

et al. 2015

Journal of Constructional Steel Research

View full text Add to dashboard Cite

“…A reduced beam section is proposed to create a weak point in the beam element, which modifies the ductility of the connection but may be vulnerable to stress concentration at the beam web and then decreases moment capacity significantly [2]- [5] . As the modified measure, HoomanFarrokhi [6]. proposed drilled holes at cover plates to create an intentional weak point, while it seems to be less efficient.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation on Flange Bolted-Welded Connection for Steel Frame

Jiao¹,

Liu²

2015

Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering

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Abstract-This paper proposes a new type of splice joint, named flange bolted-welded hybrid joint, which is designed to splice Ishape beam to facilitate the construction of industrialized buildings. The flange, welded with the bottom beam flange as well as the web close to bottom flange, are jointed by high strength bolts. Stiffening plate is welded at top of the flange while downhand welding and high strength friction grip bolts are used for the top beam flange and the beam web, respectively. The connection reduces the construction period and costs. In this paper, monotonic and reversed cyclic loading tests were conducted on three full-scale specimens of this innovative joint, to investigate its load-bearing capacity, energy-dissipating capacity and failure modes. The results indicate that the joint has high load-bearing capacity and great ductility. The failure mode is due to the slippage of flange bolts as well as the gap development between the two flange plates. The experimental studies enabled improvement of the design of the connection to be used in moment-resisting steel frame structures.

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“…Specifically, two key concepts have been developed to provide shifting of plastic hinge: reduced beam section connection and reinforced connections. A reduced beam section is proposed to create a weak point in the beam element, which modifies the ductility of the connection but may be vulnerable to stress concentration at the beam web and then decreases moment capacity significantly [2][3][4][5]. As the modified measure, Hooman Farrokhi [6].…”

Section: Introductionmentioning

confidence: 99%

Study on an Innovative Flange Bolted-Welded Connection

Jiao¹,

Zhao²

2015

TOMEJ

View full text Add to dashboard Cite

This paper proposes a new type of spliced joint, named flange bolted-welded hybrid joint, which is designed to splice I-shape beam to facilitate the construction of industrialized buildings. The flange, welded with the bottom beam flange as well as the web close to bottom flange, are jointed by high strength bolts. Stiffening plate is welded at top of the flange while downhand welding and high strength friction grip bolts are used for the top beam flange and the beam web, respectively. The connection reduces the construction period and costs. In this paper, monotonic and reversed cyclic loading tests were conducted on three full-scale specimens of this innovative joint to investigate its load-bearing capacity, energy-dissipating capacity and failure modes. The results indicate that the joint has high load-bearing capacity and great ductility. The failure mode is due to the slippage of flange bolts as well as the gap development between the two flange plates. The experimental studies enabled improvement of the design of the connection to be used in moment-resisting steel frame structures.

show abstract

A modified moment resisting connection for ductile steel frames (Numerical and experimental investigation)

Cited by 38 publications

References 6 publications

Optimum drilled flange moment resisting connections for seismic regions

Optimum drilled flange moment resisting connections for seismic regions

Experimental Investigation on Flange Bolted-Welded Connection for Steel Frame

Study on an Innovative Flange Bolted-Welded Connection

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