A statistical index based damage identification method of a bridge using dynamic displacement under moving vehicle

Rana, Shohel; Adhikary, Shuvrodeb; Tasnim, Jerin

doi:10.1016/j.istruc.2022.06.018

Cited by 10 publications

(3 citation statements)

References 67 publications

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“…Notable publications relating to dynamic measurement methods include Refs. [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Approach for Damage Identification of Beams Using Mid-Span Static Deflection Changes

Nguyen,

Nguyen

2024

Eng

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In structural health monitoring, determining the location and index of damage is a critical task in order to ensure the safe operation of the construction project and to enable the early recovery of losses. This paper presents a novel method for identifying damage location and damage index in simply supported (SS) beams by analyzing deflection changes at the mid-span point. Theoretical equations for mid-span deflection of simply supported beams with local damage are derived based on the principle of Virtual Work. Utilizing mid-span deflection, formulas for deflection change (DC) between two structural states, along with the first and second derivatives of DC at the mid-span point, are developed. The method of determining the location and damage index is then extended from intact beams to cases of beams with multiple damage zones and from damaged beams to beams with new failures. The graphical analysis of these quantities facilitates the determination of the number, location, and index of new damages. Various case studies on simply supported beams, involving one, two, and four damage zones at different positions and with varying damage indexes, are examined. The comparison of the theoretical method with the numerical simulations using Midas FEA NX 2020 (v1.1) software yields consistent results, affirming the accuracy and efficacy of the proposed approach in identifying and determining the damage locations as well as the damage indices.

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“…Notable publications relating to dynamic measurement methods include Refs. [22][23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Approach for Damage Identification of Beams Using Mid-Span Static Deflection Changes

Nguyen,

Nguyen

2024

Eng

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“…Damage identification is essential to avoid the danger of aging bridges, and the safety inspection of such an engineering structure is a problem worthy of in-depth study. [17] Such as nondestructive testing and evaluation and SHM techniques have involved implementing damage identification strategies for aircraft, bridges, and mechanical facilities. [18] Various crack-detection techniques, including visual investigation, electromechanical impedance, [19] ultrasonic inspection, [20][21][22] and image analysis, [23,24] have been proposed.…”

Section: Introductionmentioning

confidence: 99%

Piezoelectric Glass‐Fiber‐Reinforced Polymer Sensor for Structural Health Monitoring and Stiffness Sensing

Kubota²,

Kurita

et al. 2023

Adv Eng Mater

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Strengthening and repairing infrastructure with fiber‐reinforced polymers while achieving low‐cost, real‐time monitoring of cracks in engineering structures is highly challenging. Here, a piezoelectric glass‐fiber‐reinforced polymer (piezo‐GFRP) sensor was used to monitor the mechanical behavior of cement beams with cracks under cyclic bending. The output voltage and frequency of the sensor were shown to be effective feedback signals for determining the mechanical behavior. The thin piezo‐GFRP sensor showed sufficient piezoelectric sensitivity to monitor the slight variations in the mechanical behavior of the cement beams during the early stages of cracking. This result indicates that such sensors have the potential for the multi‐functional structural health monitoring of engineering structures.This article is protected by copyright. All rights reserved.

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“…Uddin et al [7,8] studied the effect of several key parameters, including bridge vibration damping, train frequency, speed, mass, and damping on bridge vibration frequency. Shohel et al [9] proposed an output-data-driven damage identification method based on the vehicle-bridge interaction (VBI) to study bridge dynamic displacements and detect potential damage.…”

Section: Introductionmentioning

confidence: 99%

Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action

Huang

Sun

et al. 2022

Preprint

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To study the influence of the lateral deformations of a simply-supported beam bridge on the safety of high-speed railway train operations under earthquake action, this study adopted a three-span simply-supported beam bridge with 32-m spans as an example. Finite element software ANSYS and multi-body dynamics software SIMPACK were used to establish a coupled train-bridge dynamic model subjected to seismic excitations. By adopting different ground motions and changing the peak ground acceleration (PGA) and the train speed, the effects of different earthquakes and train speeds on the train driving safety were analyzed. Several conclusions were obtained. First, the trends in train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, lateral accelerations of car body, and other dynamic indices were similar under different ground motions, but the actual values were different. Second, the PGA had a significant impact on the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, and lateral accelerations of the car body, but little effect on the vertical accelerations of the car body. Third, the train speed affected the train derailment coefficient, wheel load reduction rate, lateral horizontal wheelset forces, vertical accelerations of the car body, and lateral accelerations of the car body, and these dynamic performance indices were positively correlated with the train speed. Fourth, in case of the earthquake with a PGA of 0.3g, a high-speed train would have to travel slower than at 280 km/h to ensure the safety and comfort of the ride.

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A statistical index based damage identification method of a bridge using dynamic displacement under moving vehicle

Cited by 10 publications

References 67 publications

An Efficient Approach for Damage Identification of Beams Using Mid-Span Static Deflection Changes

An Efficient Approach for Damage Identification of Beams Using Mid-Span Static Deflection Changes

Piezoelectric Glass‐Fiber‐Reinforced Polymer Sensor for Structural Health Monitoring and Stiffness Sensing

Effect of lateral deformations of a simply-supported beam bridge on high-speed railway traffic safety under earthquake action

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