Control of nonlinear bridge response with pounding effect by variable dampers

Ruangrassamee, Anat; Kawashima, Kenji

doi:10.1016/s0141-0296(02)00169-4

Cited by 97 publications

(58 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…With regard to the second (and more common) approach, analytical and experimental studies investigated different hybrid isolation systems consisting of a combination of passive devices (e.g. low 36 and high damping rubber bearings 37 , sliding isolation bearings 38 , rolling pendulum devices 39 ) and MR dampers, with a view to mitigating the seismic structural response (e.g. deck displacements and accelerations, pier forces) compared to the uncontrolled (i.e.…”

Section: Controllable Fluid Dampersmentioning

confidence: 99%

See 1 more Smart Citation

Semi-Active Control Systems in Bridge Engineering: A Review of the Current State of Practice

Gkatzogias

Kappos

2016

Structural Engineering International

View full text Add to dashboard Cite

This is the accepted version of the paper.This version of the publication may differ from the final published version. In view of the grave socioeconomic consequences of earthquake damage to bridge structures, along with their critical role in modern and older road and rail networks, this article attempts to identify and summarise the current trends in the use of semi-active control technology in bridge engineering, as an enhanced seismic response control solution, combining increased adaptability and reliability, compared to passive and active schemes. In this context, representative analytical and experimental studies, as well as some full-scale applications of semi-active control devices are first reviewed and a brief description of relevant benchmark studies is subsequently presented, with a view to serving as a point of reference for further research and development. A framework of performance-based control principles aiming at the aforementioned objectives is finally set forth. Permanent

show abstract

Section: Controllable Fluid Dampersmentioning

confidence: 99%

“…deck displacements and accelerations, pier forces) compared to the uncontrolled (i.e. passive) state and/or focusing on specific research objectives, such as response under near-fault earthquakes [38][39][40] , pounding effects 36,40 , real time hybrid testing 41 , development of control algorithms [42][43][44] , and so on.…”

Section: Controllable Fluid Dampersmentioning

confidence: 99%

Semi-Active Control Systems in Bridge Engineering: A Review of the Current State of Practice

Gkatzogias

Kappos

2016

Structural Engineering International

View full text Add to dashboard Cite

show abstract

“…In structural control, these methods are used for the active suspension of a moving oscillator in [2,3]. In some recent papers, variable dampers are incorporated for seismic isolation, for example in [4,5]. A theoretical approach to the problem of controlled beam vibration damping, based on the method of optimal Lyapunov functions, is presented in [6].…”

mentioning

confidence: 99%

Smart Suspension System for Linear Guideways

Pisarski

Bajer

2010

J Intell Robot Syst

View full text Add to dashboard Cite

This paper presents a new method for the semi-active control of the span system of linear guideways subjected to a travelling load. Two elastic beams are coupled by a set of controlled dampers. The relative velocity of the spans provides an opportunity for efficient control via semi-active suspension. The magnitude of the moving force is assumed to be constant by neglecting inertial forces. The response of the system is solved in modal space. The full analytical solution is based on the power series method and can be given over an arbitrary time interval. The control strategy is formulated by using bilinear optimal control theory. As a result, bang-bang controls are taken into account. The final solution is obtained as a numerical mean value. Several examples demonstrate the efficiency of the proposed method. The controlled system outperforms passive solutions over a wide range. Due to the simplicity of its design, the presented solution should be interesting to engineers.

show abstract

“…These include accounting for the pounding/impact effect in structural members such as between deck elements at expansion joints along the longitudinal direction of bridges (e.g. [49]), and between adjacent buildings (e.g. [50][51]).…”

Section: Piecewise Linear Restoring Forcementioning

confidence: 99%

Effective linear damping and stiffness coefficients of nonlinear systems for design spectrum based analysis

Giaralis

Spanos

2010

Soil Dynamics and Earthquake Engineering

View full text Add to dashboard Cite

Citation: Giaralis, A. & Spanos, P. D. (2010). Effective linear damping and stiffness coefficients of nonlinear systems for design spectrum based analysis. Soil Dynamics and Earthquake Engineering, 30(9), pp. 798-810. doi: 10.1016/j.soildyn.2010.01.012 This is the unspecified version of the paper.This version of the publication may differ from the final published version. Permanent ABSTRACTA stochastic approach for obtaining reliable estimates of the peak response of nonlinear systems to excitations specified via a design seismic spectrum is proposed. This is achieved in an efficient manner without resorting to numerical integration of the governing nonlinear equations of motion. First, a numerical scheme is utilized to derive a power spectrum which is compatible in a stochastic sense with a given design spectrum. This power spectrum is then treated as the excitation spectrum to determine effective damping and stiffness coefficients corresponding to an equivalent linear system (ELS) via a statistical linearization scheme. Further, the obtained coefficients are used in conjunction with the (linear) design spectrum to estimate the peak response of the original nonlinear systems. The cases of systems with piecewise linear stiffness nonlinearity, along with bilinear hysteretic systems are considered. The seismic severity is specified by the elastic design spectrum prescribed by the European aseismic code provisions (EC8). Monte Carlo simulations 2 pertaining to an ensemble of non-stationary EC8 design spectrum compatible accelerograms are conducted to confirm that the average peak response of the nonlinear systems compare reasonably well with that of the ELS, within the known level of accuracy furnished by the statistical linearization method. In this manner, the proposed approach yields ELS which can replace the original nonlinear systems in carrying out computationally efficient analyses in the initial stages of the aseismic design of structures under severe seismic excitations specified in terms of a design spectrum.

show abstract

Control of nonlinear bridge response with pounding effect by variable dampers

Cited by 97 publications

References 9 publications

Semi-Active Control Systems in Bridge Engineering: A Review of the Current State of Practice

Semi-Active Control Systems in Bridge Engineering: A Review of the Current State of Practice

Smart Suspension System for Linear Guideways

Effective linear damping and stiffness coefficients of nonlinear systems for design spectrum based analysis

Contact Info

Product

Resources

About