Experimental and numerical study on bent shear panel damper made of BLY160 steel

Zhao, Ji-Zhi; Tao, Mu‐Xuan; Wu, Zijian; Zhuang, Liang‐Dong

doi:10.1016/j.engstruct.2022.114229

Cited by 15 publications

(3 citation statements)

References 35 publications

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“…Zhao al et. [114,115] proposed a bent shear panel damper and examined it experimentally and numerically, which can be installed in eccentrically braced composite frames to effectively improve the stiffness and strength of such frames. On other hand, it should be noted that several previous studies have also studied and examined this idea in the context of walls [116][117][118][119].…”

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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“…However, conducting research on these dampers by testing them on concrete or steel frames has not been explored yet. Examples of these dampers are shear-and-flexural yielding damping [22,34], dual function metallic dampers [35], and shear link dampers [36][37][38]. Experimental studies can eliminate gaps in understanding the different effects of dampers on concrete and steel frames.…”

Section: Recommendationsmentioning

confidence: 99%

Experimental and Numerical Assessment of the Seismic Behavior of Non-uniform Slit Dampers and Bar Dampers in Moment Resisting Reinforced Concrete Frames

Rahimi,

Esfandari,

TahamouliRoudsari

2023

Period. Polytech. Civil Eng.

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The use of lateral bearing systems to rehabilitate reinforced concrete frames has been one of the most important research topics in structural engineering. Non-uniform Slit Dampers (NSD), as well as Bar dampers, are two types of novel yielding dampers whose effects on reinforced concrete structures have been evaluated in this research. In this research, three experimental samples with a one-third scale were constructed to assess the effect of the presence of NSD and Bar damper in reinforced concrete frames. Also, 16 numerical models were created to evaluate the number of used dampers in experimental specimens in order to determine the optimal mode of using these dampers. Seismic parameters of stiffness, ultimate strength, ductility, and energy dissipation capacity were investigated in this research. The research results showed that the use of lateral bearing systems with NSD and bar dampers can have a significant impact on the seismic performance of reinforced concrete moment resisting frames. Also, in the numerical models that were made using ABAQUS software, it was concluded that the use of a smaller number of dampers compared to the experimental models can still improve the seismic parameters of the system while the cyclic capacity of the system does not drop.

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“…Consequently, inspired by the suitable performance of the shear link with the shear mechanism in Eccentrically Braced Frame (EBFs) [9,10], some researchers proposed the use of an I-shaped shear link attached to CBFs. Experimental studies [11][12][13] approved that using the I-shaped dampers prevents CBF's buckling and improves the dissipating energy. Also, it pertains to simple manufacturing and installation than other ones.…”

Section: Introductionmentioning

confidence: 99%

Improving the Performance of I-Shaped Dampers Using Stiffeners

Alshimmeri,

Kontoni,

Ghamari

2023

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

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Research reports on the behavior of metallic dampers have confirmed that the I-shaped link, while designed under a shear mechanism, acts as a ductile fuse. The main weakness of these links is the reduction of stiffness of the system when they are connected directly to the diagonal member of the concentrically braced frame. To increase the stiffness and ultimate strength of the I-shaped links, increasing the thickness of the web plate has been proposed by researchers, which causes an increase in the imposed load on the members of the braces. An innovative idea to overcome this problem is adding diagonal stiffeners to the dampers. In this paper, the stiffening of the I-shaped links is examined numerically and parametrically using the finite element method (FEM). Numerical results reveal that the stiffeners not only prevent the buckling of the web plate (which causes improvement in its performance), but they also share the imposed loading. By adding the stiffeners, a thinner web plate can be used instead of increasing the thickness of the web plate to achieve larger ultimate strength and stiffness. The parametrical study indicated that the thickness of the stiffeners is much more important than the properties of the flange and web plate in case of the damper performance.

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Experimental and numerical study on bent shear panel damper made of BLY160 steel

Cited by 15 publications

References 35 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

Experimental and Numerical Assessment of the Seismic Behavior of Non-uniform Slit Dampers and Bar Dampers in Moment Resisting Reinforced Concrete Frames

Improving the Performance of I-Shaped Dampers Using Stiffeners

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