Experimental investigation of slitted web steel moment resisting frame

Dolatshahi, Kiarash M.; Gharavi, Ali; Mirghaderi, Seyed Rasoul

doi:10.1016/j.jcsr.2018.03.004

Cited by 14 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hence, this system dissipates energy by a shear yielding mechanism instead of the flexural yielding behavior. Nikoukalam and Dolatshahi (2014) introduced the concept of the shear link frame, and this idea was later investigated by Dolatshahi et al (2018), (2021), Mahmoudi et al (2016Mahmoudi et al ( , 2019, Lian et al (2020), Guan et al (2020. This category of studies experimentally investigated the shear link frame issue in one bay frame and showed its performance.…”

Section: Introductionmentioning

confidence: 99%

Dual moment resisting-shear link frames: experimental and numerical investigation

Mahmoudi

Rahai

Hatami

2023

Preprint

View full text Add to dashboard Cite

Moment resisting frames (MRFs) are one of the most favorable systems, thanks to their appropriate performance and sufficient geometric flexibility. Despite these advantages, MRFs have limitations such as low stiffness and certain code limitations. This paper provides the experimental and numerical results of a novel dual lateral load resisting system. This dual system is proposed to combine the flexural and shear nonlinear behavior of MRFs with different lengths. In the proposed dual system, MRFs are combined with frames that have a shear link with a smaller cross-section at the mid-span. This combination transfers the first plastic hinges location from the beam ends of the MRFs to the mid-span of the shear link frames. Two 1/3-scale tests are performed in the strong floor lab, and the frames are tested under quasi-static cyclic loading. In addition to increasing the stiffness of the system, the novel dual system waives the code requirement to satisfy the constraint on the beam span-to-depth (span/depth) ratio. Furthermore, the new dual system improves the resilience of the system due to the substitutability of the shear link after an earthquake. Moreover, verified 3D finite element models of the moment resisting-shear link frames dual system are also used to demonstrate the performance of the new dual system.

show abstract

Section: Introductionmentioning

confidence: 99%

Dual moment resisting-shear link frames: experimental and numerical investigation

Mahmoudi

Rahai

Hatami

2023

Preprint

View full text Add to dashboard Cite

show abstract

“…On the other hand, Kalehbasti and Dolatshahi (Rezazadeh Kalehbasti and Dolatshahi, 2018) developed two shear links including perforated and slit shear links for MRFs and investigated using numerical analyses. Dolatshahi et al (Dolatshahi et al, 2018) proposed slitted replaceable links for MRFs. Garoosi et al (Moradi Garoosi et al, 2018) carried out both numerical as well as experimental studies to investigate reduced beam connections as replaceable links.…”

Section: Introductionmentioning

confidence: 99%

Numerical Validation on Noval Replaceable Reduced Beam Section Connections for Moment-Resisting Frames

Özkılıç

Bozkurt

2022

Preprint

View full text Add to dashboard Cite

After a severe seismic activation, the buildings designed based on seismic specifications are expected to have damages without any local and global collapse. The key parameters that influence re-occupancy of the damaged buildings are workmanship cost and time. In order to circumvent shortcomings of these crucial parameters, replaceable fuse members with high energy dissipation capacity have been developed up to date. Moment resisting frames (MRFs) are one of the most preferred lateral load resisting systems in terms of architectural versatility and high energy dissipation capacity. Even though many beam-to-column connection details have been investigated over the years, none of them has addressed assembly difficulties when replacing the damaged fuse members under the residual drift ratio occurred after an earthquake. Therefore, this study presents replaceable reduced beam sections with connection detail for MRFs under residual drift. The proposed detail includes end-plated mid-spliced reduced beam sections. Pursuant to this goal, the proposed detail has been investigated under cyclic loading protocol required by AISC 341-16 by using ABAQUS finite element program. Seismic response of the proposed connection detail was compared from PEEQ and Rupture Index standpoint. The obtained findings indicate that the proposed mid-spliced replaceable reduced beam section satisfies all requirements mandated by AISC 341-16.

show abstract

“…2022, 12, 202 2 of 21 than that available in shear wall systems and braced frames. Many issues are related to the formation of plastic hinges in MRF and to the linked structural consequences; for a discussion on these issues see, e.g., [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

A New Design Problem in the Formulation of a Special Moment Resisting Connection Device for Preventing Local Buckling

2021

View full text Add to dashboard Cite

In the present paper an improved formulation devoted to the optimal design problem of a special moment resisting connection device for steel frames is proposed. This innovative device is called a Limited Resistance Plastic Device (LRPD) and it has been recently proposed and patented by some of the authors. It is thought to be preferably located at the extremes of the beam, connecting the beam end cross section with the relevant column. The typical device is a steel element characterized by symmetry with respect to three orthogonal barycentric planes and constituted by a sequence of three portions with abrupt cross section changes. The main novelty of the present proposal is related to the design of special geometry for the optimal device ensuring that it possesses a reduced resistance with respect to the relevant connected beam element, is characterized by an equivalent bending stiffness equal to the one of the connected beam elements and exhibits full plastic deformations avoiding any local instability phenomenon. The optimal design is formulated as a minimum volume one and is subjected to suitable constraints on the geometry of the device and on its elastic and plastic behavior. The optimization problem is a strongly non-linear programming one and it is solved by adopting an interior-point algorithm that is available in the MATLAB Optimization Toolbox. The numerical simulations are devoted to the most used standard steel profiles (IPE, HE) and the results prove the great reliability of the proposed device. In addition, the relevant elastic and plastic domains of the designed devices are defined, and the expected behavior of the device is verified by appropriate 3D finite element models in the ABAQUS environment.

show abstract

Experimental investigation of slitted web steel moment resisting frame

Cited by 14 publications

References 18 publications

Dual moment resisting-shear link frames: experimental and numerical investigation

Dual moment resisting-shear link frames: experimental and numerical investigation

Numerical Validation on Noval Replaceable Reduced Beam Section Connections for Moment-Resisting Frames

A New Design Problem in the Formulation of a Special Moment Resisting Connection Device for Preventing Local Buckling

Contact Info

Product

Resources

About