A Robust Approach to Calculating Bridge Displacements from Unfiltered Accelerations for Highway and Railway Bridges

Bunce, Andrew; Hester, David; Taylor, Su; Huseynov, Farhad; Xu, Yan

doi:10.2139/ssrn.4391315

Cited by 1 publication

(1 citation statement)

References 21 publications

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“…Traditional approaches, such as linear variable displacement transducers (LVDTs), can be used in a limited number of cases if a fixed reference is available to measure from. Acceleration is typically an easier method used to measure dynamic response of bridges than displacement, the fundamental issue when attempting to integrate acceleration to recover displacements is the presence of low frequency noise in the acceleration signal [10,11]. In structural engineering, exceeding a beam's deflection limits implies failure of beams in serviceability.…”

Section: Literature Reviewmentioning

confidence: 99%

Time-Dependent Reliability Analysis for Deflection of a Reinforced Concrete Box Girder Bridge

Gebre

2023

International Journal of Engineering and Applied Sciences

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Prior to casting of concrete, proper supervision and attention to camber provision in bridge construction are required. It is also critical to use an appropriate quality control manual, pay due attention to reinforcement bar placement, and have a high level of formwork design before construction begins. If these issues are not properly addressed, performance of structures will be affected. In this research, performance of a 40.5m box-girder reinforced concrete bridge which was constructed without having proper camber is studied. As camber was the most important issue of the bridge under investigation, the impact on strength and serviceability requirements is compared to the standard. A dynamic load test with an Arduino type accelerometer is performed to assess the bridge's current condition in relation to the serviceability limit requirement. The deterioration of reinforced concrete (RC) sections due to reinforcement corrosion, creep, and an increase in load intensity, as well as the corresponding statistical distributions are considered to estimate the long-term effect of bridge deflection. The time-variant analysis results show that a linear decrease in deflection reliability indices with the bridge's expected service life of 58 years and strengthening it increased to 85 years.

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Section: Literature Reviewmentioning

confidence: 99%

Time-Dependent Reliability Analysis for Deflection of a Reinforced Concrete Box Girder Bridge

Gebre

2023

International Journal of Engineering and Applied Sciences

View full text Add to dashboard Cite

show abstract

A Robust Approach to Calculating Bridge Displacements from Unfiltered Accelerations for Highway and Railway Bridges

Cited by 1 publication

References 21 publications

Time-Dependent Reliability Analysis for Deflection of a Reinforced Concrete Box Girder Bridge

Time-Dependent Reliability Analysis for Deflection of a Reinforced Concrete Box Girder Bridge

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