Behavior factor evaluation of CFS wood sheathed shear walls according to FEMA P695 for Eurocodes

Shakeel, Sarmad; Fiorino, Luigi; Landolfo, Raffaele

doi:10.1016/j.engstruct.2020.111042

Cited by 28 publications

(8 citation statements)

References 19 publications

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“…Nowadays many studies investigated the behavior of the steel structures in seismic areas [1][2][3][4][5][6][7][8][9][10][11][12], with the aim to obtain ductile structures that could resist to the earthquake action without showing any brittle behavior; however, in many cases, these studies and innovative solutions could be applied not only to the new structures but could represent a viable solution also for the existing structures.…”

Section: Introductionmentioning

confidence: 99%

Seismic Assessment of Beam-to-Column Joints for a Non-Conforming MRF Existing Structure

Tartaglia¹,

D’Aniello²,

Milone³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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As widely investigated in literature, the local behavior of the joints strongly influences the whole performance of the steel structures; thus, both in the design and assessment of the moment resisting frame (MRF) the joint performance should be properly accounted for. The present work is focused on local assessment and retrofit the beam-to-column joints of an existing non-conforming steel building. Therefore, the monotonic and cyclic behaviors of internal beamto-column joints are investigated by means of finite element analyses (FEAs). The main peculiarities of these joints are the continuity of beams and hollow square columns interrupted at each level and connected both by bolts and fillet welds to the tapered flanges of the beams. Onsite surveys allowed fully characterizing the geometry of the joints. The joint assemblies were sub-structured from the moment resisting frames and analyzed against both the vertical loads and seismic actions. The results showed that these types of joints exhibit very poor seismic behavior, concentering most of the damage within the welds. Therefore, different local strengthening interventions were designed and numerically checked. The comparison between the response of the unreinforced and the various strengthening joints is described, and the best solutions in terms of both cyclic behavior and technological feasibility are subsequently identified.

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Section: Introductionmentioning

confidence: 99%

Seismic Assessment of Beam-to-Column Joints for a Non-Conforming MRF Existing Structure

Tartaglia¹,

D’Aniello²,

Milone³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Under the bending action, the node is forced to rotate around the center of rotation, located at the base of the upper T-stub, and the dissipated energy is guaranteed by the alternating sliding of the bolts on the vertical stainless-steel plate (Figure 12). In particular, the FREEDAM rotation is: (18) where d is the distance between the bolt and the slot, is the beam height, is the distance between the center of gravity of the bolts and the lower flange of the beam.…”

Section: Structures With Freedam Jointsmentioning

confidence: 99%

Design and Analysis of Freedam Frames: Comparison With Traditional Connections

Maglio¹,

Naddei²,

Nastri³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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The aim of this work is to present the results of the design of Moment Resisting Frames and Dual-Concentrically Braced Frames (D-CBFs) according to the Theory of Plastic Mechanism Control. These frames are equipped with both haunched connections, analysed in the framework of the RFCS founded EqualJoints Plus research project, and FREEDAM joints analysed in the framework of the RFCS founded FREEDAM Plus. The seismic performances of the structures are investigated by both pushover and nonlinear dynamic analyses.

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“…If . The capacity in terms of spectral acceleration, for a specific limit state, can be obtained through the following relationship: (15) The demand is represented by the spectral acceleration provided by the code, for the specific limit state, considering the equivalent period of vibration T*.…”

Section: Adrs Spectrum Approachmentioning

confidence: 99%

A Simplified Approach for the Estimation of Seismic Vulnerability of Steel Moment Resisting Frames

Montuori¹,

Nastri²,

Piluso³

et al. 2021

Proceedings of the 8th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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In recent years, the numerous seismic events occurred have pointed out the need for a prompt classification of the built heritage in terms of seismic vulnerability. the concept of vulnerability is closely linked to the definition of the capacity curve, requiring sophisticated numerical procedures to be perferomed, such as the inelastic incremental analysis. Therefore, the simplified method herein proposed requires use of only analytically simple analyses such as the elastic analysis and the rigid-plastic analysis. For this reason, this method can be used in the immediate aftermath of an earthquake and also for a large-scale classification of the buildings. The proposed methodology has been set up by a wide parametric analysis, carried out on 420 frames designed according to 3 different approaches: the first one is linked to the Theory of Plastic Mechanism Control (TPMC), assuring the design of structures showing global collapse mechanism (GMRFs), the second is based on the Eurocode 8 requirements (SMRFs) while the third is a non-seismic design, based on vertical loads (OMRFs).

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Behavior factor evaluation of CFS wood sheathed shear walls according to FEMA P695 for Eurocodes

Cited by 28 publications

References 19 publications

Seismic Assessment of Beam-to-Column Joints for a Non-Conforming MRF Existing Structure

Seismic Assessment of Beam-to-Column Joints for a Non-Conforming MRF Existing Structure

Design and Analysis of Freedam Frames: Comparison With Traditional Connections

A Simplified Approach for the Estimation of Seismic Vulnerability of Steel Moment Resisting Frames

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