Shake table test program of cold-formed steel in-plane partition walls

The unconventionality of the cold-formed steel (CFS) structures raised, in recent times, a lot of interest from many national and international companies resulting in the promotion of experimental activity with the main aim of investigating the seismic behaviour of these systems. In this perspective, a research project carried out at the University of Naples “Federico II” and funded by Lamieredil S.p.A. company started in the last years. The study included an extended experimental campaign, involving shake table tests on two three-storey prototypes in reduced scale (1:3). The investigated lateral load resisting systems were CFS strap-braced stud walls, designed as low dissipative seismic structures. The present paper illustrates case study, prototypes, test program and main shake table tests results.

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Shake Table Test of Light-gauge Cold-formed Steel Frame with Friction / Viscous Damper and Sliding Base (Part 1) Basic Seismic Response of Three-Story Frame

The Proceedings of the Dynamics & Design Conference ◽

10.1299/jsmedmc.2019.219 ◽

2019 ◽

Vol 2019 (0) ◽

pp. 219

Author(s):

Takehiro WAKITA ◽

Satsuya SODA ◽

Yuji Miyazu ◽

Kazuki WATAI

Keyword(s):

Seismic Response ◽

Steel Frame ◽

Shake Table Test ◽

Shake Table ◽

Viscous Damper ◽

Cold Formed Steel

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Dynamic characteristics and seismic behavior of prefabricated steel stairs in a full-scale five-story building shake table test program

Earthquake Engineering & Structural Dynamics ◽

10.1002/eqe.2595 ◽

2015 ◽

Vol 44 (14) ◽

pp. 2507-2527 ◽

Cited By ~ 3

Author(s):

Xiang Wang ◽

Rodrigo Astroza ◽

Tara C. Hutchinson ◽

Joel P. Conte ◽

José I. Restrepo

Keyword(s):

Dynamic Characteristics ◽

Seismic Behavior ◽

Full Scale ◽

Shake Table Test ◽

Shake Table ◽

Test Program ◽

Story Building

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Shake Table Test of Light-gauge Cold-formed Steel Frame with Friction / Viscous Damper and Sliding Base

The Proceedings of the Dynamics & Design Conference ◽

10.1299/jsmedmc.2019.221 ◽

2019 ◽

Vol 2019 (0) ◽

pp. 221

Author(s):

Yuji MIYAZU ◽

Satsuya SODA ◽

Kazuki WATAI ◽

Takehiro WAKITA ◽

Ai TOMITA

Keyword(s):

Steel Frame ◽

Shake Table Test ◽

Shake Table ◽

Viscous Damper ◽

Cold Formed Steel

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Shake Table Test of a Half-Scale 2-Storey Steel Building Seismically Retrofitted Using Rocking Braced Frame System

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.763.466 ◽

2018 ◽

Vol 763 ◽

pp. 466-474 ◽

Cited By ~ 1

Author(s):

Paul Mottier ◽

Robert Tremblay ◽

C.A. Rogers

Keyword(s):

Test Specimen ◽

Steel Structure ◽

Shake Table Test ◽

Shake Table ◽

Test Program ◽

Scaled Model ◽

Braced Frame ◽

Higher Mode Effects ◽

Mode Effects ◽

Frame System

The article introduces a shake table test program that was conducted to investigate the response of a two-storey rocking braced frame for which self-centring capacity is provided solely by the gravity loads supported by the frame. The test specimen is a 0.5 scaled model of a prototype rocking frame that was studied for the retrofit of a seismically deficient steel structure. The main objectives of the test program were to study the effects of column uplift and impact on shear forces and moments in the beams connected to the columns. Higher mode effects on brace forces were also of interest. Three different energy dissipation mechanisms located at the rocking interface were examined for drift control: friction, ring spring dampers, and vertical steel bars yielding in tension and buckling in compression. By changing the seismic weight of the test specimen, tests could be conducted for structures located in two different seismic regions of Canada to study the effect of the signature of the ground motions. Increases in beam forces due to column uplift and impact, as predicted by previous numerical simulations, were confirmed by the tests. High axial loads induced by the second vibration mode were also measured in the second storey braces.

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