Seismic performance assessment of a novel ductile steel braced frame equipped with steel curved damper

Ghabussi, Aria; Marnani, Jafar Asgari; Rohanimanesh, Mohammad Sadegh

doi:10.1016/j.istruc.2021.01.073

Cited by 31 publications

(3 citation statements)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Afterwards, Ghabussi et al [166,167] used this damper in frame structures to improve their seismic performance. In both the pitched roof symmetric portal frame and the mono pitch portal frame, dampers with a 30° and 60° angle were most effective at reducing energy dissipation and maintaining frame strength.…”

Section: 5 Steel Curved Dampermentioning

confidence: 99%

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

Behnamfar¹,

Almohammad-albakkar²

2023

IJE

View full text Add to dashboard Cite

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.

show abstract

Section: 5 Steel Curved Dampermentioning

confidence: 99%

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

Behnamfar¹,

Almohammad-albakkar²

2023

IJE

View full text Add to dashboard Cite

show abstract

“…The results showed that the concurrent use of TADAS and SCD system prevents the failure of the structure due to the obtained high energy dissipation capacity. Ghabussi et al (2021) evaluated the performance of a new flexible steel-braced frame equipped with an SCD. They used SCDs instead of knee elements for better energy dissipation, increasing resistance and elastic stiffness during cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

Combined SCD-SPSW system subjected to ground excitation

Boshagh,

Labibzadeh,

Hosseinlou

et al. 2023

IJSI

View full text Add to dashboard Cite

PurposeIn this study, the application of a novel combined steel curved damper (SCD) and steel plate shear wall (SPSW) system in the 5-, 10- and 15-storey steel moment-resisting frames (SMR) subjected to earthquake excitation has been investigated. The proposed system is called here as the SMR-WD (steel moment resisting–wall damper).Design/methodology/approachAt the beginning of this research, an SMR-W and an SMR-D are separately modeled in ABAQUS software and verified against the available experimental data. After that, three different heights SMR-WD systems (5-, 10- and 15-storey) are designed and simulated. Then, their performances are examined and compared to the corresponding SMR-W under the effects of six actual earthquake records.FindingsThe obtained results show that the proposed system increases the mean values of the base shear for 5-, 10- and 15-storey SMR-WD equal to 27, 20.15 and 16.51%, respectively compared to the corresponding SMR-W. Moreover, this system reduces the drift of the floors so that the reduction in the average values of maximum drift for 5-, 10- and 15-storey SMR-WD is equal to 10, 7 and 29%, respectively with respect to the corresponding SMR-W. The results also reveal that the considered system dissipates more energy than SMR-W so that the increase in the mean values of the energy absorption for 5-, 10- and 15-storey SMR-WD is 30.8, 25.6 and 41.3%, respectively when compared to the SMR-W. Furthermore, it is observed that SMR-WD has a positive effect on the seismic performance of the link beams and panel zones of the frames. By increasing the height of the structure in the SMR-WD, the energy dissipation and base shear force increases and the drift of floors decreases. Hereupon, the proposed SMR-WD system is more useful for tall buildings than SMR-W frames.Originality/valueFor the first time, the application of a novel combined steel curved damper (SCD) and steel plate shear wall (SPSW) system in the 5-, 10- and 15-storey steel moment-resisting frames (SMR) subjected to earthquake excitation has been investigated.

show abstract

“…For instance, Steel plate‐based dampers: ADAS, [ 13,14 ] TADAS, [ 15,16 ] rhombic, [ 17 ] single round‐hole, [ 18 ] X‐shaped, [ 19 ] slit, [ 20,21 ] comb‐teeth, [ 22 ] parabolic, [ 22,23 ] prebent strips [ 24 ] and curved steel dampers, [ 25 ] and shear damper. [ 26,27 ] These dampers exhibit suitable seismic performance; however, they require high‐quality manufacturing. Dampers made as links: EBF, [ 28–30 ] vertical shear links, [ 22,23,31,32 ] shear damper, [ 33,34 ] and knee braces, [ 35,36 ] U‐shaped steel, [ 37 ] torsional beams, [ 38 ] tapered cantilevers, [ 39 ] and tapered tube dampers. [ 40 ] The loading directions are indicated by arrows.…”

Section: Introductionmentioning

confidence: 99%

Development of an innovative metallic damper for concentrically braced frame systems based on experimental and analytical studies

Ghamari

Kim

Jeong

2022

Structural Design Tall Build

View full text Add to dashboard Cite

Although concentrically braced frames (CBFs) possess high lateral stiffness and strength, the buckling of compressive members indicates that a system does not have appropriate ductility. Therefore, CBF is not a successful system for high seismic regions. Comprehensive studies have been performed on this drawback concerning CBF systems. The use of a metallic damper is considered an appropriate method to enhance the behavior of CBFs. While metallic dampers improve the hysteretic behavior of the CBF, they impose additional costs on the structures. Therefore, in this study, a steel damper, which is economical and straightforward to construct and replace after a severe earthquake, was developed. The proposed damper was investigated experimentally and numerically. In addition, a parametric study was performed to evaluate the effect of the three types of damper mechanisms (shear, shear-flexural, and flexural) with three types of buckling (elastic, inelastic, and plastic) on the behavior of the proposed damper. The experimental results, as well as the numerical results, indicate that the shear damper exhibits better performance than the other dampers in terms of strength and stiffness. Except in the case where the shear damper is accompanied by plastic buckling, it has a higher energy dissipation capability. In addition, a flexural damper with elastic buckling cannot be considered as an energy-dissipating device because of the fracturing of the damper due to displacement near the elastic zone. Fundamental relationships were used to predict the behavior of these dampers, and these predictions showed good agreement with the finite element results.

show abstract

Seismic performance assessment of a novel ductile steel braced frame equipped with steel curved damper

Cited by 31 publications

References 41 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

Combined SCD-SPSW system subjected to ground excitation

Development of an innovative metallic damper for concentrically braced frame systems based on experimental and analytical studies

Contact Info

Product

Resources

About