Damage analysis and seismic retrofitting of a continuous prestressed reinforced concrete bridge
TLDR
In this article, the seismic analysis and retrofit of a prestressed reinforced concrete bridge is discussed by considering a real case of a viaduct still in use and the results of the analysis indicate that the structural performance can be enhanced by only modifying the support devices.About:
This article is published in Case Studies in Structural Engineering.The article was published on 2014-12-01 and is currently open access. It has received 7 citations till now. The article focuses on the topics: Seismic retrofit & Beam bridge.read more
Citations
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Investigation of MRS and SMA Dampers Effects on Bridge Seismic Resistance Employing Analytical Models
TL;DR: In this article, the authors investigated the seismic performance of the smart and shape memory alloy (SMA) and magnets plus rubber-spring (MRS) dampers and their effects on the seismic resistance of multiple-span simply supported bridges.
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Seismic Isolation Retrofitting of Typical Multi-Span Steel Girder Bridges in New York State:
Dongming Feng,Fangyin Zhang +1 more
TL;DR: In this article, the existing multi-span simply supported bridges in New York State, US are susceptible to earthquake damage and need to be retrofitted to reduce their seismic risk, and the authors proposed a method to reduce the seismic risk of these bridges.
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Retrofitting techniques of damaged concrete structure for environment concern: A review
TL;DR: In this paper , a review of the application of the retrofitting techniques using Fiber Reinforced Polymer (FRP) material for environment concerned is presented, where the deterioration of concrete structure and FRP retrofitted materials durability were discussed.
Retrofitting of Short-to-Medium-Span Bridges in Seismic Zones: Experiences & Recommendations
Mehmed Čaušević,Mladen Bulić +1 more
TL;DR: In this article, the authors presented solutions for retrofitting the abutment, bent and column of concrete bridges recommended in these programs as well as some recommendations and comments made by authors will be presented in this paper.
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Experimental identification of box girder bridge model under undamaged and damaged conditions considering time effect
TL;DR: In this article, the structural behavior of box girder bridge model under undamaged and damaged conditions considering time effect between June 2009 and February 2015 using ambient vibration tests was evaluated, and experimental measurements were performed to determine the damage and time effect on dynamic characteristics such as natural frequencies, mode shapes and damping ratios.
References
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Additional viscous dampers for civil structures: Analysis of design methods based on effective evaluation of modal damping ratios
TL;DR: In this article, the modal damping ratio of non classical/non proportional damping schemes is calculated based on the well known state-space representation of dynamical systems and a methodology is adopted to analyse a number of design methods for supplemental damping systems found in the scientific literature.
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Understanding and modelling the physical behaviour of magnetorheological dampers for seismic structural control
TL;DR: In this paper, the authors compare the effectiveness of numerical models presented in the literature and analyses the response time and the dissipative capabilities of such devices, based on an experimental campaign on two prototype devices manufactured in Europe.
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Semi-active control of the benchmark highway bridge based on seismic early warning systems
TL;DR: In this paper, a semi-active early warning system (SEWS) is used to predict the intensity of an incoming earthquake in order to determine the optimal seismic response of the hosting structure.
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Use of seismic early warning information to calibrate variable dampers for structural control of a highway bridge: evaluation of the system robustness
TL;DR: In this article, the authors investigated the possible exploitation of a seismic early warning system (SEWS) in the framework of semi-active structural control using magnetorheological (MR) dampers.
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A simplified method for flexural capacity assessment of circular RC cross-sections
TL;DR: In this paper, a simplified method for the assessment of bending moment resistance for reinforced concrete (RC) members with circular cross-sections is presented, where longitudinal rebars arrangement is replaced with a thin steel ring equivalent to the steel total area; moreover, according to modern codes, simplified stress-strain relationships for concrete and reinforcing steel are used.