Seismic Testing of Steel Plate Energy Dissipation Devices

Whittaker, Andrew S.; Bertero, Vitelmo V.; Thompson, Christopher L.; Alonso, Liliana

doi:10.1193/1.1585644

Cited by 279 publications

(113 citation statements)

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“…A research program at EERC was undertaken to investigate the behavioral aspects of individual ADAS elements under dynamic loading, and the improvements in response of a three-story ductile steel, moment-resisting frame (MRF) upgraded with ADAS elements and subjected to shake table earthquake ground motions table (Whittaker, 1991). (Fig.…”

Section: Adas Elementsmentioning

confidence: 99%

Testing of Passive Energy Dissipation Systems

et al. 1993

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Over the period 1986 to 1991, seven different passive energy dissipation systems were studied in experimental research programs at the Earthquake Engineering Research Center of the University of California at Berkeley. This paper presents an overview of these studies, describing the different types of devices, the results of the shake table experiments, and associated analytical work. Four of the systems studied are friction systems, and of these, three (Sumitomo, Pall, and Friction-Slip) are based on Coulomb friction. The fourth is the FluorDaniel Energy Dissipating Restraint, which is a device capable of providing selfcentering friction resistance that is proportional to displacement. The three other systems all have different energy dissipation mechanisms: ADAS elements, which utilize the yielding of mild-steel X-plates; viscoelastic shear dampers using a 3M acrylic copolymer as the dissipative element; and Nickel-Titanium alloy shapememory devices that take advantage of reversible, stress-induced phase changes in the alloy to dissipate energy. The effectiveness of the various systems is evaluated by comparing the response of the test structures without and with the energy dissipators. In some cases, where devices were studied using the same test structure, they are compared directly. All of the systems investigated exhibited characteristics beneficial to improved structural response to earthquake loading.

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Section: Adas Elementsmentioning

confidence: 99%

Testing of Passive Energy Dissipation Systems

et al. 1993

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“…-Reported experiments (Tyler 1985, Filiatrault and Cherry 1987, Fitzgerald et al 1989, Anagnostides and Hargreaves 1990, Aiken and Kelly 1990, Richter et al 1990, Whittaker et al 1991, Grigorian et al 1993, Yang and Popov 1995, Wu and Ou 2003, Morgen and Kurama 2004, Ng and Xu 2006, Vial et al 2005, Ricles et al 2006, Zhu et al 2006, Tsai et al 2008, Morgen and Kurama 2008, Iyama et al 2009) do not yield enough information about those questions, as they are mostly oriented to check the global validity of particular devices or assemblies. -The numerical simulation constitutes a challenging issue as the dynamic behavior of friction devices is highly nonlinear, as discussed previously.…”

Section: Fig 2 Hysteresis Loops Of Energy Dissipatorsmentioning

confidence: 99%

Experimental study of friction dissipators for seismic protection of building structures

Almansa

Cruz

Taylor

2011

Earthq. Eng. Eng. Vib.

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This paper presents unidirectional shaking table tests of two reduced scale steel models of building frames; they have one and two floors, respectively. Such frames incorporate friction dissipators at every floor. The inputs are sine-dwells and artificial and registered earthquakes. This work belongs to a larger research project aiming to assess the seismic efficiency of friction dissipators by means of an integrated numerical and experimental approach. Inside this framework, the main objectives of these experiments are: (i) to collect a wide range of results useful to calibrate a numerical model derived inside the project, (ii) to contribute to clarify some of the most controversial issues about friction dissipators (behavior for inputs containing pulses, capacity to cut resonance peaks, introduction of high frequencies in the response, self-generated eccentricities), (iii) to better understand their dynamic behavior, (iv) to give an insight on the feasibility and reliability of using simple friction dissipators for seismic protection of building structures and (v) to characterize the hysteretic behavior of these devices. Most of these objectives are satisfactorily reached and relevant conclusions are stated.

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“…The value of a in Eq. (16) is considered to be 0.12, and the range of the ductility ratios for the ADAS dampers is controlled between 3 and 5 [25]. The ADAS devices lower 80 percent of the column shear forces using this procedure when the whole system is subjected to different Earthquake ground movements.…”

Section: Study On the Effects Of The Energy Dissipating Systemsmentioning

confidence: 99%

Analysis of the steel braced frames equipped with ADAS devices under the far field records

Bayat

2011

Lat. Am. j. solids struct.

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The usefulness of supplementary energy dissipation devices is now quite well-known in earthquake structural engineering for reducing the earthquake-induced response of structural systems. The seismic behavior of structures with supplemental ADAS devices is concerned in this study. In this paper, the ratio of the hysteretic energy to input energy is compared in different structural systems. The main purpose of this paper is to evaluate the behavior of structures equipped with yielding dampers (ADAS), located in far fields based on energy concepts. In order to optimize their seismic behavior, the codes and solutions are also presented. Three cases including five, ten and fifteen-story three-bay Concentric Braced Frames (CBF) with and without ADAS were selected. The PERFORM 3D.V4 software along with three earthquake records (Northridge, Imperial Valley and Tabas) is used for nonlinear time history analysis and the conclusions are drawn upon energy criterion. The effect of PGA variation and height of the frames are also considered in the study. Finally, to increase the energy damping ability and reduce the destructive effects in structures on an earthquake event, so that a great amount of induced energy is damped and destruction of the structure is prevented as much as possible by using ADAS dampers.

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Seismic Testing of Steel Plate Energy Dissipation Devices

Cited by 279 publications

References 0 publications

Testing of Passive Energy Dissipation Systems

Testing of Passive Energy Dissipation Systems

Experimental study of friction dissipators for seismic protection of building structures

Analysis of the steel braced frames equipped with ADAS devices under the far field records

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