Seismic performance of ductile welded connections using T-stiffener

Ghobadi, Mohammad Soheil; Ghassemieh, Mehdi; Mazroi, A.; Abolmaali, Ali

doi:10.1016/j.jcsr.2008.05.007

Cited by 39 publications

(18 citation statements)

References 16 publications

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“…In this study, the experimental results of RC3 and RC4 introduced by Ghobadi et al [12], and RC7 by Ghobadi et al [5] were used for the finite element verification. Fig.…”

Section: Experimental Testingmentioning

confidence: 99%

“…The specimen RC7 was designed and tested by Ghobadi et al [5] with a factor of 1.2 for the calculation of plastic moment capacity of the beam. The RC7 connection contained column stiffeners, top and bottom beam flange stiffeners, and side-stiffeners.…”

Section: Experimental Testingmentioning

confidence: 99%

“…The various stiffeners included in this connection provide the capability of removing the stiffeners or altering the stiffener thickness while maintaining the stability and effectiveness of the connection. Ghobadi et al [5] also investigated the seismic performance and ductility of RC7 when the connection was retrofitted by a sidestiffener. Fig.…”

Section: Experimental Testingmentioning

confidence: 99%

“…A typical test setup presented by Ghobadi et al [5] and Ghobadi et al [12] is shown in Fig. 5 and a typical experimental specimen is presented in Fig.…”

Section: Experimental Testingmentioning

confidence: 99%

“…Among the connections tested, the connections with side-stiffeners exhibited higher ductility. Ghobadi et al [5] investigated the performance of the retrofitted connections with side-stiffeners. The results showed an improvement in the ductility of the connection while eliminating the crack propagation at the connection zone.…”

Section: Introductionmentioning

confidence: 99%

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The effect of stiffeners on the strain patterns of the welded connection zone

Kiamanesh

Abolmaali

Ghassemieh

2010

Journal of Constructional Steel Research

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“…In this study, the experimental results of RC3 and RC4 introduced by Ghobadi et al [12], and RC7 by Ghobadi et al [5] were used for the finite element verification. Fig.…”

Section: Experimental Testingmentioning

confidence: 99%

Section: Experimental Testingmentioning

confidence: 99%

Section: Experimental Testingmentioning

confidence: 99%

“…A typical test setup presented by Ghobadi et al [5] and Ghobadi et al [12] is shown in Fig. 5 and a typical experimental specimen is presented in Fig.…”

Section: Experimental Testingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The effect of stiffeners on the strain patterns of the welded connection zone

Kiamanesh

Abolmaali

Ghassemieh

2010

Journal of Constructional Steel Research

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Investigation of the ConXL moment connection cyclic behavior in box columns without filling concrete with different arrangement of collar bolts

Shahidi

Rezaeian

Jamal‐Omidi

et al. 2014

Structural Design Tall Build

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Summary The aim of this study was to study numerically the seismic behavior of ConXL connection without filler concrete of columns and reduce the number of collar bolts with different arrangement. For this purpose, to verify the modeling and analyzing, we compared the numerical results of specimens (reduced beam section, end plate and Kaiser bolted bracket (KBB) connections) with the experimental results and observed a good agreement. Afterward, 18 specimens of ConXL moment connections in box columns not filled with concrete with axial force in single, planar and bi‐axial loading conditions with different arrangement of bolts were studied, and their performances were evaluated. Results show that seismic behavior of specimens with beam section depth less than W30 series under cyclic loading, even with reduces of number of bolts to 16 numbers, are suitable in the over 0.04 rad rotations. In addition, the use of 16 bolts in W30 series beams connections is suitable provided they are used in the corner connections (with single sided loading) and the material specifications ASTM‐A36 are used for the beams. Moreover, the closer the position of bolts related to the outer side of collar flange, the more axial strain of bolts shank and the lesser slippage. The most optimum of bolt position is the surface middle of the collar flange and collar corner. Copyright © 2014 John Wiley & Sons, Ltd.

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Analytical investigation on performance of special moment-resisting connections with unequal beam depths

Jazany

Esmaeily

Hashemi

et al. 2015

Struct. Design Tall Spec. Build.

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SUMMARYThis study considers the effect of detailing of an interior beam to column connection with unequal beam depths on seismic performance of special moment-resisting frame (SMRF), which has not explicitly been taken into account, despite its possible occurrence in engineering practice, by the current codes and provisions. Studied detailing consists of a continuity plate arrangement, cover plate, flange plate and haunch connection system as alternatives in order to connect a shallow beam and a deep beam to column. To improve the understanding of seismic performance in SMRF connections, coordinated analytical and experimental studies have been conducted to examine the effect of different geometries and the mentioned alternatives on the seismic performance of SMRF with unequal beam depths. This work describes the analytical studies and includes a summary of the experimental results used in the development and validation of the analytical models; the experiment and analyses show that some detailing could provide ductile behavior with a total storey drift angle of 0.06 rad before experiencing 20% strength degradation while other detailing would not satisfy this criterion.

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Seismic performance of ductile welded connections using T-stiffener

Cited by 39 publications

References 16 publications

The effect of stiffeners on the strain patterns of the welded connection zone

The effect of stiffeners on the strain patterns of the welded connection zone

Investigation of the ConXL moment connection cyclic behavior in box columns without filling concrete with different arrangement of collar bolts

Analytical investigation on performance of special moment-resisting connections with unequal beam depths

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