Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces

Among the existing passive energy dampers, I-shaped shear dampers had shown suitable performance in experimental and numerical studies. Although they improve the dissipating energy and ductility of concentrically braced frames (CBFs), they reduce the stiffness and ultimate strength of the system. Th...

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Main Authors: Thongchom, Chanachai, Ghamari, Ali, Putra Jaya, Ramadhansyah, Benjeddoud, Omrane
Format: Article
Language:English
Published: MDPI 2023
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/36623/
http://umpir.ump.edu.my/id/eprint/36623/1/Experimental%20and%20Numerical%20Study%20on%20an%20Innovative%20Trapezoidal-Shaped.pdf
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author Thongchom, Chanachai
Ghamari, Ali
Putra Jaya, Ramadhansyah
Benjeddoud, Omrane
author_facet Thongchom, Chanachai
Ghamari, Ali
Putra Jaya, Ramadhansyah
Benjeddoud, Omrane
author_sort Thongchom, Chanachai
building UMP Institutional Repository
collection Online Access
description Among the existing passive energy dampers, I-shaped shear dampers had shown suitable performance in experimental and numerical studies. Although they improve the dissipating energy and ductility of concentrically braced frames (CBFs), they reduce the stiffness and ultimate strength of the system. Three approaches are generally used to overcome the problem, including (a) increasing the thinness of the shear plates, (b) increasing the number of shear plates, and (c) using more dampers in more bays. The mentioned approaches increase construction costs. Accordingly, to overcome this shortcoming, in this paper, an innovative shear damper with a trapezoidal shape is proposed and investigated experimentally and numerically. The results indicated that when using the same material for I-shaped shear dampers and the proposed damper, the proposed damper has greater ultimate strength, elastic stiffness, and dissipating energy capacity. Additionally, the flange plates are more effective in the behavior of the proposed damper than the I-shaped damper. Moreover, required equations were proposed to design the damper.
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spelling ump-366232023-02-22T01:38:18Z http://umpir.ump.edu.my/id/eprint/36623/ Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces Thongchom, Chanachai Ghamari, Ali Putra Jaya, Ramadhansyah Benjeddoud, Omrane TA Engineering (General). Civil engineering (General) TH Building construction Among the existing passive energy dampers, I-shaped shear dampers had shown suitable performance in experimental and numerical studies. Although they improve the dissipating energy and ductility of concentrically braced frames (CBFs), they reduce the stiffness and ultimate strength of the system. Three approaches are generally used to overcome the problem, including (a) increasing the thinness of the shear plates, (b) increasing the number of shear plates, and (c) using more dampers in more bays. The mentioned approaches increase construction costs. Accordingly, to overcome this shortcoming, in this paper, an innovative shear damper with a trapezoidal shape is proposed and investigated experimentally and numerically. The results indicated that when using the same material for I-shaped shear dampers and the proposed damper, the proposed damper has greater ultimate strength, elastic stiffness, and dissipating energy capacity. Additionally, the flange plates are more effective in the behavior of the proposed damper than the I-shaped damper. Moreover, required equations were proposed to design the damper. MDPI 2023-01 Article PeerReviewed pdf en cc_by_4 http://umpir.ump.edu.my/id/eprint/36623/1/Experimental%20and%20Numerical%20Study%20on%20an%20Innovative%20Trapezoidal-Shaped.pdf Thongchom, Chanachai and Ghamari, Ali and Putra Jaya, Ramadhansyah and Benjeddoud, Omrane (2023) Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces. Buildings, 13 (1). pp. 1-25. ISSN 2075-5309. (Published) https://doi.org/10.3390/buildings13010140 https://doi.org/10.3390/buildings13010140
spellingShingle TA Engineering (General). Civil engineering (General)
TH Building construction
Thongchom, Chanachai
Ghamari, Ali
Putra Jaya, Ramadhansyah
Benjeddoud, Omrane
Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title_full Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title_fullStr Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title_full_unstemmed Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title_short Experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of CBF braces
title_sort experimental and numerical study on an innovative trapezoidal-shaped damper to improve the behavior of cbf braces
topic TA Engineering (General). Civil engineering (General)
TH Building construction
url http://umpir.ump.edu.my/id/eprint/36623/
http://umpir.ump.edu.my/id/eprint/36623/
http://umpir.ump.edu.my/id/eprint/36623/
http://umpir.ump.edu.my/id/eprint/36623/1/Experimental%20and%20Numerical%20Study%20on%20an%20Innovative%20Trapezoidal-Shaped.pdf