Maximum deflection of simple span steel box girder bridge using stress data

Suangga, Made; Surachmat, David

doi:10.1088/1755-1315/998/1/012017

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The use of linear regression in estimating maximum deflection using rotational data demonstrates similar accuracy compared to the quadratic regression equation [4]. Achieving a favourable level of accuracy in predicting the maximum deflection value in a simple span steel box girder bridge is influenced by the magnitude of the measured deflection, with higher accuracy observed for larger deflection values [5] [6].…”

Section: Introductionmentioning

confidence: 88%

Estimating Maximum Deflection of PCI Girder Bridge Using Tiltmeter Sensor: A Practical Approach for Structural Monitoring

Made,

Andreas

2024

E3S Web Conf.

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Bridges are critical infrastructures subjected to dynamic and repetitive loads over extended periods, necessitating continuous monitoring to ensure their structural integrity. Monitoring the performance of a bridge involves several key parameters, with maximum deflection being of utmost importance. This study aims to develop an equation model using multiple regression analysis to establish the relationship between deflection values and rotation values obtained from a PCI girder bridge as a project case study. A 3-D Finite Element Method model was developed to accurately represent the bridge's geometric and mechanical properties. Actual data on maximum deflection and rotation were acquired by subjecting the FEM model to realistic load conditions. Regression analysis was conducted to derive equations for calculating maximum deflection based on the measured rotation and strain data. The accuracy of the estimated maximum deflection was validated by comparing it with values obtained from 3D structural analysis using FEM software The results demonstrate that the proposed regression equation accurately estimates the maximum deflection, with an average accuracy rate of 98.185%. Thus, this method presents a reliable approach for estimating the maximum deflection based on tiltmeter readings, offering a practical solution with a commendable level of accuracy.

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Section: Introductionmentioning

confidence: 88%

Estimating Maximum Deflection of PCI Girder Bridge Using Tiltmeter Sensor: A Practical Approach for Structural Monitoring

Made,

Andreas

2024

E3S Web Conf.

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“…In order to implement the idea of hybrid monitoring identified above. Suangga et al [7] employed a particular stress-deflection relationship to predict bridge maximum deflection by utilizing strain data of a simple span bridge. Their findings indicated that the deflection outcomes from the suggested static equation agree well with the 2D Finite Element Method (FEM) analysis results.…”

Section: Introductionmentioning

confidence: 99%

Predicting multi-span bridge maximum deflection: Numerical simulation and validation

Brinissat,

Ray,

Kuti

2024

IOP Conf. Ser.: Mater. Sci. Eng.

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Deflection is one of the main parameters often required to reflect and monitor the overall health state of bridge structures. Several approaches have been developed to monitor deflection accurately and economically. This research proposes a theoretical method to estimate the maximum deflection of the longest section of a seven-span continuous bridge using stress data collected through strain gauges. Firstly, initial data were collected from field tests under various controlled loadings to obtain the maximum deflections and stresses. Then, the stress-deflection regression equations are derived to reconstruct deflection from estimated gauges. Finally, the maximum deflection values are compared with analytical results using finite element simulations to verify the method’s effectiveness.

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“…The development and successful implementation of long-term structural monitoring systems on bridges have been widely reported by researchers. In recent years, tiltmeters (also called inclinometers) have been widely used for construction monitoring, structural examiners, and long-term performance monitoring of bridges by promoting a simple method at an affordable cost [3][6] [7][8] [9]. The method of measuring bridge deflection using rotational data from the tiltmeter (inclinometer) is considered quite promising, practical, inexpensive, and simple to measure static and dynamic deflection of bridge spans under load, even for bridge spans that cross heights.…”

Section: Introductionmentioning

confidence: 99%

Study of deflection of PCI girder bridges using rotation data

Suangga,

Pranoto

2024

IOP Conf. Ser.: Earth Environ. Sci.

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A bridge is an infrastructure that experiences dynamic and repetitive load for a long period of time, so it is necessary to monitor the condition of the bridge structure to ensure that the bridge is always in a proper condition. This study aims to develop an equation model using multiple regression analysis to establish the relationship between deflection values and rotation values obtained from a PCI girder bridge as a project case study. The results demonstrate that the proposed regression equation accurately estimates the maximum deflection, with an average accuracy rate of 96.4%. The highest level of accuracy is 99.9497 % when the deflection is 0.0606m. The minimum level of accuracy is 86.3821 when the deflection is 0.0346. This result indicated that low accuracy happened at relatively small deflection values of particular load configurations. Thus, this method presents a reliable approach for estimating the maximum deflection based on tiltmeter readings, offering a practical solution with a commendable level of accuracy.

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Maximum deflection of simple span steel box girder bridge using stress data

Cited by 3 publications

References 2 publications

Estimating Maximum Deflection of PCI Girder Bridge Using Tiltmeter Sensor: A Practical Approach for Structural Monitoring

Estimating Maximum Deflection of PCI Girder Bridge Using Tiltmeter Sensor: A Practical Approach for Structural Monitoring

Predicting multi-span bridge maximum deflection: Numerical simulation and validation

Study of deflection of PCI girder bridges using rotation data

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