Effect of lap reinforcement in link slabs of highway bridges

Charuchaimontri, T.; Senjuntichai, Teerapong; Ožbolt, Joško; Limsuwan, Ekasit

doi:10.1016/j.engstruct.2007.04.015

Cited by 12 publications

(10 citation statements)

References 8 publications

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“…He indicated that in integral bridge abutments, the Mohr-Coulumb model in comparison with hardening model provides better correspondence to the field measurements. In addition, many researchers have used Mohr-Coulumb model for analysis of integral bridge abutments (Banks et al 2008;Carlstedt 2008). It is evident that the hardening soil model may lead to more accurately results, but more parameters are required and makes it complicated.…”

Section: Soil Modellingmentioning

confidence: 98%

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An Investigation on the Effect of Cyclic Displacement on the Integral Bridge Abutment

Movahedifar

Bolouri-Bazaz

2014

Journal of Civil Engineering and Management

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The integral bridge abutment, as a special type of retaining wall, is subject to cyclic displacement, which is due to the daily and seasonal temperature variations. The frame of this type of bridges is rigid and jointless. This requires that the slab of the bridge to be longitudinally continuous without expansion joints. This causes cyclic displacement to be imposed to the backfill material of integral bridge abutment. It should be pointed out that the omission of expansion joints helps to provide a fluent traffic and a reduction in maintenance and repair of the bridges. To investigate the impact of cyclic displacement on the loose backfill soil behaviour, an innovative laboratory retaining wall model has been designed and constructed to imitate the cyclic behaviour of backfill granular material. In addition, a numerical model, based on finite element method, has been developed to interpret the experimental results. This model was calibrated using the laboratory test data. The results indicate that the passive pressure, except for low amplitude displacement, escalates with progressive number of cycles and its distribution is not linear, which is due to the forming arch.

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Section: Soil Modellingmentioning

confidence: 98%

“…Evaluation of cost maintenance, confirmed the joint removal in these bridges. (Marques Lima, de Brito 2009;Wallbank 1989;Ahn et al 2011;Charuchaimontri et al 2008). The consequence of the joint removal is that the bridge deck to be continuous.…”

Section: Introductionmentioning

confidence: 97%

An Investigation on the Effect of Cyclic Displacement on the Integral Bridge Abutment

Movahedifar

Bolouri-Bazaz

2014

Journal of Civil Engineering and Management

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“…ElSafty and Okeil (2008) investigated the performance and service life of bridges with continuous slab-deck by numerical analysis and the three-moment equation presented by Okeil. Ulku et al (2009) and Charuchaimontri et al (2008) investigated the axial force, cracking moment, and the maximum moment in a continuous slab-deck by 3D nonlinear finite element analysis. Kim et al (2004), Saber and Aleti (2012), and Zhang et al (2013) investigated the use of the fiberglassreinforced plastic grid for reinforcement in link slabs of jointless bridge decks based on the experimental study to improve the crack resistance.…”

Section: Introductionmentioning

confidence: 99%

An analytical method for full-range mechanical behavior of continuous slab-deck in multi-span simply supported concrete bridges

Zhang

Yan

Jia

et al. 2021

Advances in Structural Engineering

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Connecting the ends of girders with a continuous slab-deck to make a multiple-span simply supported girder bridge provides many benefits, but there is no suitable nonlinear analysis model which considers continuous slab-deck cracking under tension and bending. In this article, the rotational spring model is further refined to replace the restraining effects at both ends of the girder by the simplified mechanical model associated with axial stiffness, bending stiffness, and shear stiffness. Then, it is introduced into the analysis of continuous slab-deck. The more accurate rotations and displacements of both ends of continuous slab-deck are obtained to investigate the more precise moment and tension of the continuous slab-deck. Furthermore, this article presents an improved nonlinear analysis model of continuous slab-deck based on a detailed boundary rotational spring model. The displacements of important positions and the strain of key components in continuous slab-deck after cracking are investigated by numerical analysis and full-scale model test to verify the accuracy of the proposed nonlinear analysis model. The result shows that the nonlinear analysis model presented in this article could successfully evaluate the depth of cracks and the stress of rebars in continuous slab-deck, and it is instructional in predicting the cracking state of the continuous slab-deck and the reinforcement design.

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“…The study was based on appropriate selection of elements and strength failure criteria required for accurate analysis of concrete columns confined with FRP sheets. Charuchaimontri et al 15 performed a full-scale test on three RC long span link slabs to validate their finite element model, which can be used to predict the effective moment of inertia of the link slab under midspan loading, end rotation, and end translation for the development of design criteria for a link slab. Destrebecq et al 16 investigated the actual mechanical behavior of a full-scale RC beam using a digital-image-correlation technique.…”

Section: Introductionmentioning

confidence: 99%

Beam moment and shear force calculations using digital-camera experiments

Hsu

2019

Advances in Mechanical Engineering

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This article presents an image-based method to find the beam moment and shear force using the measured beam displacements. A least-squares method is first developed to find the rotations and lateral displacements at beam ends using the measured displacements along the beam. Then, the moments and shear forces of this beam segment are obtained using the matrix formulation including shear deformation and large displacement effects. Two experimental schemes, image symbol dot and image-correlation methods, were used to validate the accuracy of the proposed scheme. The comparison of the results between the finite element analysis and the two methods shows acceptable accuracy. Although this method is mainly applied to the elastic region, one can still find the moment and shear force at the inelastic region using the equilibrium equation.

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Effect of lap reinforcement in link slabs of highway bridges

Cited by 12 publications

References 8 publications

An Investigation on the Effect of Cyclic Displacement on the Integral Bridge Abutment

An Investigation on the Effect of Cyclic Displacement on the Integral Bridge Abutment

An analytical method for full-range mechanical behavior of continuous slab-deck in multi-span simply supported concrete bridges

Beam moment and shear force calculations using digital-camera experiments

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