A simple approach to the seismic design of friction damped braced medium-rise frames

Levy, Robert; Marianchik, Eduard; Rutenberg, Avigdor; Segal, Fred

doi:10.1016/s0141-0296(00)00039-0

Cited by 21 publications

(7 citation statements)

References 8 publications

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“…Note that Equation was first proposed by Newmark and Rosenblueth and used in a number of studies to account for the effect of changing vibration amplitude on ξ eff . Here, u is the peak system displacement, and E d and E s are the dissipated energy and maximum effective strain energy in one cycle of amplitude u ′.…”

Section: Peak Earthquake Response Prediction For Nonlinear Frames Equmentioning

confidence: 99%

Response prediction, experimental characterization and P‐spectra design of frames with viscoelastic–plastic dampers

Guo¹,

Christopoulos

2016

Earthq Engng Struct Dyn

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Summary Viscoelastic–plastic (VEP) dampers are hybrid passive damping devices that combine the advantages of viscoelastic and hysteretic damping. This paper first formulates a semi‐analytical procedure for predicting the peak response of nonlinear SDOF systems equipped with VEP dampers, which forms the basis for the generation of Performance Spectra that can then be used for direct performance assessment and optimization of VEP damped structures. This procedure is first verified against extensive nonlinear time‐history analyses based on a Kelvin viscoelastic model of the dampers, and then against a more advanced evolutionary model that is calibrated to characterization tests of VEP damper specimens built from commercially available viscoelastic damping devices, and an adjustable friction device. The results show that the proposed procedure is sufficiently accurate for predicting the response of VEP systems without iterative dynamic analysis for preliminary design purposes. A design method based on the Performance Spectra framework is then proposed for systems equipped with passive VEP dampers and is applied to enhance the seismic response of a six‐storey steel moment frame. The numerical simulation results on the damped structure confirm the use of the Performance Spectra as a convenient and accurate platform for the optimization of VEP systems, particularly during the initial design stage. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Peak Earthquake Response Prediction For Nonlinear Frames Equmentioning

confidence: 99%

Response prediction, experimental characterization and P‐spectra design of frames with viscoelastic–plastic dampers

Guo¹,

Christopoulos

2016

Earthq Engng Struct Dyn

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“…The effectiveness of bidirectional frictional forces for the analysis of piping system when subjected to earthquake ground motion with friction supports was given by Jangid and Patil, 2009 [13]. The slotted bolt connection type friction damper was investigated on the seismic retrofitting of the structure by Robert Levy et al, 2001 [14]. The conceptual design of three storey steel frame building of seismic retrofitting of existing building using friction damper was investigated by Lee et al, 2008 [15] and Tabeshpour & Ebrahimian, 2010 [16].…”

Section: ____________________________________________________________mentioning

confidence: 99%

Applications of Dampers for Vibration Control of Structures: An Overview

.¹

2013

IJRET

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“…In order to demonstrate the applicability of the proposed methodology to more realistic structures under an ensemble of ground motion records, an industrial building consisting of a symmetric 10-storey 3-bay steel frame ( Figure 6) with inherent 2% Rayleigh damping in the ÿrst and second modes is used [21]. Without loss of generality, the methodology was performed on the condensed matrices neglecting axial deformations, i.e.…”

Section: Example 2 a 10-storey Industrial Framementioning

confidence: 99%

Optimal design of supplemental viscous dampers for linear framed structures

Lavan

Levy

2005

Earthq Engng Struct Dyn

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SUMMARYA methodology for the optimal design of supplemental viscous dampers for framed structures is presented. It addresses the problem of minimizing the added damping subject to a constraint on the maximal interstorey angular drift for an ensemble of realistic ground motion records while assuming linear behaviour of the damped structure. The solution is achieved by actually solving an equivalent optimization problem of minimizing the added damping subject to a constraint on a maximal weighted integral on the squared angular drift. The computational e ort is appreciably reduced by ÿrst using one 'active' ground motion record. If the resulting optimal design fails to satisfy the constraints for other ground motions from the original ensemble, additional ground motions (loading conditions) are added one by one to the 'active' set until the optimum is reached. An e cient selecting process which is presented herein will usually require one or two records to attain an optimum design.Examples of optimal designs of supplemental dampers are presented for a 2-storey shear frame and a 10-storey industrial frame. The 2-storey shear frame is required to withstand one given ground motion whereas the 10-storey frame is required to withstand an ensemble of twenty ground motions. The resulting viscously damped structures have envelope values of interstorey drifts equal or less than the target drifts.

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A simple approach to the seismic design of friction damped braced medium-rise frames

Cited by 21 publications

References 8 publications

Response prediction, experimental characterization and P‐spectra design of frames with viscoelastic–plastic dampers

Response prediction, experimental characterization and P‐spectra design of frames with viscoelastic–plastic dampers

Applications of Dampers for Vibration Control of Structures: An Overview

Optimal design of supplemental viscous dampers for linear framed structures

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