Hourglass-shaped strip damper subjected to monotonic and cyclic loadings

Chang Hwan Lee; Seung Hee Lho; Do Hyun Kim; Jintak Oh; Young K. Ju

doi:10.1016/j.engstruct.2016.04.019

Hourglass-shaped strip damper subjected to monotonic and cyclic loadings

Chang Hwan Lee, Seung Hee Lho, Do Hyun Kim, Jintak Oh, Young K. Ju^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

81 Citations (Scopus)

Abstract

An hourglass-shaped strip damper (HSD) was proposed to improve on the conventional slit damper. The damper has non-uniform strips which have a smaller cross-sectional area close to the middle height. To find the structural capacities of HSD subjected to monotonic and cyclic loadings, experimental tests were carried out in this study. Test parameters were loading rate, material strength, and the number of damper plates. The results showed substantial load-resistance capacity under monotonic loadings, and excellent ductility and energy dissipation were exhibited under cyclic loadings, with even distribution of damage over the entire height of strips. Based on the test results, a simple hysteretic model using a combined isotropic-kinematic hardening rule was also proposed. The comparison demonstrated that it represents the tested cyclic load-displacement hysteresis well. It is expected that the proposed model can be successfully used to predict the behavior of HSD in real-world applications.

Original language	English
Pages (from-to)	122-134
Number of pages	13
Journal	Engineering Structures
Volume	119
DOIs	https://doi.org/10.1016/j.engstruct.2016.04.019
Publication status	Published - 2016 Jul 15

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2013R1A1A2013578 ). The authors would also like to express their gratitude for the financial support of UNISON eTech Co., Ltd. , Republic of Korea.

Publisher Copyright:
© 2016 Elsevier Ltd.

Keywords

Backbone curve
Combined isotropic-kinematic hardening
Energy dissipation
Hysteretic model
Membrane effect
Metallic damper
Passive damping device
Seismic retrofitting

ASJC Scopus subject areas

Civil and Structural Engineering

Access to Document

10.1016/j.engstruct.2016.04.019

Cite this

@article{4e93b671cc774368b3537af584fea7b4,

title = "Hourglass-shaped strip damper subjected to monotonic and cyclic loadings",

abstract = "An hourglass-shaped strip damper (HSD) was proposed to improve on the conventional slit damper. The damper has non-uniform strips which have a smaller cross-sectional area close to the middle height. To find the structural capacities of HSD subjected to monotonic and cyclic loadings, experimental tests were carried out in this study. Test parameters were loading rate, material strength, and the number of damper plates. The results showed substantial load-resistance capacity under monotonic loadings, and excellent ductility and energy dissipation were exhibited under cyclic loadings, with even distribution of damage over the entire height of strips. Based on the test results, a simple hysteretic model using a combined isotropic-kinematic hardening rule was also proposed. The comparison demonstrated that it represents the tested cyclic load-displacement hysteresis well. It is expected that the proposed model can be successfully used to predict the behavior of HSD in real-world applications.",

keywords = "Backbone curve, Combined isotropic-kinematic hardening, Energy dissipation, Hysteretic model, Membrane effect, Metallic damper, Passive damping device, Seismic retrofitting",

author = "Lee, \{Chang Hwan\} and Lho, \{Seung Hee\} and Kim, \{Do Hyun\} and Jintak Oh and Ju, \{Young K.\}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2013R1A1A2013578 ). The authors would also like to express their gratitude for the financial support of UNISON eTech Co., Ltd. , Republic of Korea. Publisher Copyright: {\textcopyright} 2016 Elsevier Ltd.",

year = "2016",

month = jul,

day = "15",

doi = "10.1016/j.engstruct.2016.04.019",

language = "English",

volume = "119",

pages = "122--134",

journal = "Engineering Structures",

issn = "0141-0296",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Hourglass-shaped strip damper subjected to monotonic and cyclic loadings

AU - Lee, Chang Hwan

AU - Lho, Seung Hee

AU - Kim, Do Hyun

AU - Oh, Jintak

AU - Ju, Young K.

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MEST) (No. 2013R1A1A2013578 ). The authors would also like to express their gratitude for the financial support of UNISON eTech Co., Ltd. , Republic of Korea. Publisher Copyright: © 2016 Elsevier Ltd.

PY - 2016/7/15

Y1 - 2016/7/15

N2 - An hourglass-shaped strip damper (HSD) was proposed to improve on the conventional slit damper. The damper has non-uniform strips which have a smaller cross-sectional area close to the middle height. To find the structural capacities of HSD subjected to monotonic and cyclic loadings, experimental tests were carried out in this study. Test parameters were loading rate, material strength, and the number of damper plates. The results showed substantial load-resistance capacity under monotonic loadings, and excellent ductility and energy dissipation were exhibited under cyclic loadings, with even distribution of damage over the entire height of strips. Based on the test results, a simple hysteretic model using a combined isotropic-kinematic hardening rule was also proposed. The comparison demonstrated that it represents the tested cyclic load-displacement hysteresis well. It is expected that the proposed model can be successfully used to predict the behavior of HSD in real-world applications.

AB - An hourglass-shaped strip damper (HSD) was proposed to improve on the conventional slit damper. The damper has non-uniform strips which have a smaller cross-sectional area close to the middle height. To find the structural capacities of HSD subjected to monotonic and cyclic loadings, experimental tests were carried out in this study. Test parameters were loading rate, material strength, and the number of damper plates. The results showed substantial load-resistance capacity under monotonic loadings, and excellent ductility and energy dissipation were exhibited under cyclic loadings, with even distribution of damage over the entire height of strips. Based on the test results, a simple hysteretic model using a combined isotropic-kinematic hardening rule was also proposed. The comparison demonstrated that it represents the tested cyclic load-displacement hysteresis well. It is expected that the proposed model can be successfully used to predict the behavior of HSD in real-world applications.

KW - Backbone curve

KW - Combined isotropic-kinematic hardening

KW - Energy dissipation

KW - Hysteretic model

KW - Membrane effect

KW - Metallic damper

KW - Passive damping device

KW - Seismic retrofitting

UR - https://www.scopus.com/pages/publications/84963812180

U2 - 10.1016/j.engstruct.2016.04.019

DO - 10.1016/j.engstruct.2016.04.019

M3 - Article

AN - SCOPUS:84963812180

SN - 0141-0296

VL - 119

SP - 122

EP - 134

JO - Engineering Structures

JF - Engineering Structures

ER -

Hourglass-shaped strip damper subjected to monotonic and cyclic loadings

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this