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Design of steel buildings for earthquake conditions using next-generation elastomeric dampers

Design of steel buildings for earthquake conditions using next-generation elastomeric dampers
Design of steel buildings for earthquake conditions using next-generation elastomeric dampers
This paper evaluates the hysteretic behavior of an innovative compressed elastomer structural damper and its applicability to seismic resistant design of steel moment resisting frames (MRFs). The damper is constructed by pre-compressing a high damping elastomeric material into steel tubes. This innovative construction results in viscous-like damping under small strains and friction-like damping under large strains. A hysteretic model for the damper is presented and calibrated using test data obtained under sinusoidal loading. A simplified design procedure is used to design seven different systems of steel MRFs combined with compressed elastomer dampers in which the properties of the MRFs and dampers were varied. The combined systems are designed to achieve performance which is similar to or better than the performance of conventional steel MRFs designed according to current seismic codes. Based on the results of nonlinear time history analyses, target properties for a new generation of compressed elastomer dampers are defined.
1417-1427
Karavasilis, Theodore
15850eb0-6af4-4b6e-bab4-d5bde281b769
Sause, R.
ac7be883-f8d1-43e2-b8bd-dce430a4d3c3
Ricles, J. M.
1d3f7759-19c2-4486-98b2-16c4f70d138c
Karavasilis, Theodore
15850eb0-6af4-4b6e-bab4-d5bde281b769
Sause, R.
ac7be883-f8d1-43e2-b8bd-dce430a4d3c3
Ricles, J. M.
1d3f7759-19c2-4486-98b2-16c4f70d138c

Karavasilis, Theodore, Sause, R. and Ricles, J. M. (2012) Design of steel buildings for earthquake conditions using next-generation elastomeric dampers. Structures Congress 2010, United States. 12 - 15 May 2010. pp. 1417-1427 . (doi:10.1061/41130(369)129).

Record type: Conference or Workshop Item (Paper)

Abstract

This paper evaluates the hysteretic behavior of an innovative compressed elastomer structural damper and its applicability to seismic resistant design of steel moment resisting frames (MRFs). The damper is constructed by pre-compressing a high damping elastomeric material into steel tubes. This innovative construction results in viscous-like damping under small strains and friction-like damping under large strains. A hysteretic model for the damper is presented and calibrated using test data obtained under sinusoidal loading. A simplified design procedure is used to design seven different systems of steel MRFs combined with compressed elastomer dampers in which the properties of the MRFs and dampers were varied. The combined systems are designed to achieve performance which is similar to or better than the performance of conventional steel MRFs designed according to current seismic codes. Based on the results of nonlinear time history analyses, target properties for a new generation of compressed elastomer dampers are defined.

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More information

Published date: 2012
Venue - Dates: Structures Congress 2010, United States, 2010-05-12 - 2010-05-15
Organisations: Infrastructure Group

Identifiers

Local EPrints ID: 402449
URI: https://eprints.soton.ac.uk/id/eprint/402449
PURE UUID: f08d0d3a-bef5-4cfe-aab6-8ac697b63dfb
ORCID for Theodore Karavasilis: ORCID iD orcid.org/0000-0003-2553-5389

Catalogue record

Date deposited: 10 Nov 2016 11:57
Last modified: 15 Jul 2019 19:55

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