Deformable Connection for Earthquake-resistant Building System

Georgios Tsampras, Richard Sause, Robert Fleischman, Jose Restrepo, Dichuan Zhang

Research output: Contribution to conferencePaper

Abstract

This paper presents a deformable connection that is used to connect each floor system of the flexible gravity load resisting system (GLRS) with the stiff lateral force resisting system (LFRS) of an earthquake-resistant building. The deformable connection limits the forces transferred from the GLRS to the LFRS, and reduces the floor accelerations and force responses of the structure. The deformable connection consists of a buckling restrained brace (BRB) or a friction device (FD) which acts as a limited-strength hysteretic component, in parallel with low damping laminated rubber bearings (RB) which provide out-of-plane stability to the LFRS, post-elastic in-plane stiffness, and help with partial re-centering. Preliminary numerical simulations of a twelve-story reinforced concrete wall building structure with deformable connections showed reduced structural responses compared to a building with rigid-elastic connections.
Original languageEnglish
Publication statusPublished - 2015
Event11th JAEE International Symposium on Earthquake Engineering - Tokyo, Japan
Duration: Nov 19 2015 → …

Conference

Conference11th JAEE International Symposium on Earthquake Engineering
CountryJapan
CityTokyo
Period11/19/15 → …

Fingerprint

Earthquakes
Gravitation
Bearings (structural)
Buckling
Reinforced concrete
Rubber
Damping
Stiffness
Friction
Computer simulation

Cite this

Tsampras, G., Sause, R., Fleischman, R., Restrepo, J., & Zhang, D. (2015). Deformable Connection for Earthquake-resistant Building System. Paper presented at 11th JAEE International Symposium on Earthquake Engineering, Tokyo, Japan.

Deformable Connection for Earthquake-resistant Building System. / Tsampras, Georgios; Sause, Richard; Fleischman, Robert; Restrepo, Jose; Zhang, Dichuan.

2015. Paper presented at 11th JAEE International Symposium on Earthquake Engineering, Tokyo, Japan.

Research output: Contribution to conferencePaper

Tsampras, G, Sause, R, Fleischman, R, Restrepo, J & Zhang, D 2015, 'Deformable Connection for Earthquake-resistant Building System' Paper presented at 11th JAEE International Symposium on Earthquake Engineering, Tokyo, Japan, 11/19/15, .
Tsampras G, Sause R, Fleischman R, Restrepo J, Zhang D. Deformable Connection for Earthquake-resistant Building System. 2015. Paper presented at 11th JAEE International Symposium on Earthquake Engineering, Tokyo, Japan.
Tsampras, Georgios ; Sause, Richard ; Fleischman, Robert ; Restrepo, Jose ; Zhang, Dichuan. / Deformable Connection for Earthquake-resistant Building System. Paper presented at 11th JAEE International Symposium on Earthquake Engineering, Tokyo, Japan.
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AB - This paper presents a deformable connection that is used to connect each floor system of the flexible gravity load resisting system (GLRS) with the stiff lateral force resisting system (LFRS) of an earthquake-resistant building. The deformable connection limits the forces transferred from the GLRS to the LFRS, and reduces the floor accelerations and force responses of the structure. The deformable connection consists of a buckling restrained brace (BRB) or a friction device (FD) which acts as a limited-strength hysteretic component, in parallel with low damping laminated rubber bearings (RB) which provide out-of-plane stability to the LFRS, post-elastic in-plane stiffness, and help with partial re-centering. Preliminary numerical simulations of a twelve-story reinforced concrete wall building structure with deformable connections showed reduced structural responses compared to a building with rigid-elastic connections.

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