Strain Distribution Measurement of a Shear Panel Damper Developed for Bridge Structure

Liu, Y.; Aoki, Tetsuhiko; Shimoda, Masatoshi

doi:10.1155/2013/615275

Cited by 13 publications

(4 citation statements)

References 12 publications

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“…This system was capable to dissipate the seismic energy through the plastic shear deformation of an external diaphragm steel plate that was welded inside a square hollow section. As mentioned before in this section, a metallic shear panel damper is commonly designed using low-yield-strength steel, owing to its high ductility [88,89]. In this regard, Ming-hasiang et al [61] reported that steel shear plate device with a low yield strength was capable of dissipating or absorbing input energy in a stable behavior.…”

Section: 1 Steel Shear Panel Dampersmentioning

confidence: 99%

Development of Steel Yielding Seismic Dampers Used to Improve Seismic Performance of Structures: A Comprehensive Review

Behnamfar¹,

Almohammad-albakkar²

2023

IJE

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Seismic excitation can cause significant energy to be released within structures. By using special devices, this energy can be consumed and dissipated without deforming structural members significantly. Due to this, structural damage is minimized, casualties are prevented during earthquakes, and structures are extended in their useful life. Over the past five decades, it has been widely acknowledged that steel yielding dampers are among the best energy dissipation devices. It has been stated that the hysteretic behavior of steel yielding dampers could vary slightly depending on their geometry. From a practical point of view, they are suitable for the improvement of seismic safety in new and existing structures. The purpose of this paper is to present a review related to steel yielding dampers, their development, various types, and applications, in order to help understand the role of these dampers in improving the seismic performance of structures. In terms of their shape, steel yielding dampers can be categorized as steel plate dampers, pipe dampers, curved dampers, and slit dampers. The most common use of steel plate, such as ADAS and TADAS, and pipe dampers is within braced frames, whereas U-shaped, Jshaped, and S-shaped dampers are mostly seen in frames with chevron bracing. Steel curved dampers with a 60° angle in a steel-braced frame, on the other hand, provide the best energy dissipation and frame strength. In this direction, until today, steel slit dampers have been found to be the most commonly used steel yielding dampers.

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Section: 1 Steel Shear Panel Dampersmentioning

confidence: 99%

Development of Steel Yielding Seismic Dampers Used to Improve Seismic Performance of Structures: A Comprehensive Review

Behnamfar¹,

Almohammad-albakkar²

2023

IJE

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“…Other research works have also been conducted to evaluate steel damper behaviour [30][31][32][33][34][35]. A shear panel damper (SPD), which contains a steel plate linked to two upper and lower panels, has also been proposed and investigated by some researchers [36][37][38][39][40][41]. Garivani et al [42] developed a comb-teeth damper (CTD), which comprises steel plates that resemble comb teeth.…”

Section: Introductionmentioning

confidence: 99%

Behaviour Investigation of SMA-Equipped Bar Hysteretic Dampers Using Machine Learning Techniques

et al. 2021

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Most isolators have numerous displacements due to their low stiffness and damping properties. Accordingly, the supplementary damping systems have vital roles in damping enhancement and lower the isolation system displacement. Nevertheless, in many cases, even by utilising additional dampers in isolation systems, the occurrence of residual displacement is inevitable. To address this issue, in this study, a new smart type of bar hysteretic dampers equipped with shape memory alloy (SMA) bars with recentring features, as the supplementary damper, is introduced and investigated. In this regard, 630 numerical models of SMA-equipped bar hysteretic dampers (SMA-BHDs) were constructed based on experimental samples with different lengths, numbers, and cross sections of SMA bars. Furthermore, by utilising hysteresis curves and the corresponding ideal bilinear curves, the role of geometrical and mechanical parameters in the cyclic behaviour of SMA-BHDs was examined. Due to the deficiency of existing analytical models, proposed previously for steel bar hysteretic dampers (SBHDs), to estimate the first yield point displacement and post-yield stiffness ratio in SMA-BHDs accurately, new models were developed by the artificial neural network (ANN) and group method of data handling (GMDH) approaches. The results showed that, although the ANN models outperform GMDH ones, both ANN- and GMDH-based models can accurately estimate the linear and nonlinear behaviour of SMA-BHDs in pre- and post-yield parts with low errors and high accuracy and consistency.

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“…These metal dampers generally have a short element length. The simplest metallic damper is a single steel plate, generally welded to the structure, indicated in the literature as a shear panel damper (SPD) [16,17].…”

Section: Introductionmentioning

confidence: 99%

Shear Behavior of a Reinforced Concrete Frame Retrofitted with a Hinged Steel Damping System

Kim¹,

Park

Kim

2020

Sustainability

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The purpose of this study was to experimentally evaluate the effect of a hinged steel damping system on the shear behavior of a nonductile reinforced concrete frame with an opening. For the experimental test, a total of three full-scale reinforced concrete frame specimens were planned, based on the “no retrofitting” (NR) specimens with non-seismic details. The main research questions were whether the hinged steel damping system is reinforced and whether torsion springs are installed in the hinged steel damping system. From the results of the experiment, the hinged steel damping system (DR specimen) was found to be effective in seismic retrofitting, while isolating the opening of the reinforced concrete (RC) frame, and the torsion spring installed at the hinged connection (DSR specimen) was evaluated to be effective in controlling the amount of deformation of the upper and lower dampers. The strength, stiffness, and energy dissipation capacity of the DSR specimen were slightly improved compared to the DR specimen, and it was confirmed that stress redistribution was induced by the rotational stiffness of the torsion spring installed in the hinge connection between the upper and lower frames.

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Strain Distribution Measurement of a Shear Panel Damper Developed for Bridge Structure

Cited by 13 publications

References 12 publications

Development of Steel Yielding Seismic Dampers Used to Improve Seismic Performance of Structures: A Comprehensive Review

Development of Steel Yielding Seismic Dampers Used to Improve Seismic Performance of Structures: A Comprehensive Review

Behaviour Investigation of SMA-Equipped Bar Hysteretic Dampers Using Machine Learning Techniques

Shear Behavior of a Reinforced Concrete Frame Retrofitted with a Hinged Steel Damping System

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