Load Transfer Characteristics of Dowel Bar System in Jointed Concrete Pavement

Maitra, Swati Roy; Reddy, K. Sudhakar; Ramachandra, L. S.

doi:10.1061/(asce)te.1943-5436.0000065

Cited by 47 publications

(28 citation statements)

References 17 publications

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“…It may however be noted that it may take significant computational effort to evaluate the fatigue life of normal size slab using the present model. Therefore, in the present analysis, the pavement was modeled as a beam with an effective width of 1,100 mm [total width of the dual wheel of 470 mm (Maitra et al 2009) +45 • dispersion on both sides, which is equal to 1,070 mm, and is rounded off to 1,100 mm]. The length of the beam is taken as 4,500 mm and depth as 300 mm.…”

Section: Pavement Configurationmentioning

confidence: 99%

Numerical investigation of fatigue characteristics of concrete pavement

2014

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In concrete pavements, fatigue is one of the major causes of distress. Repeated loads result in the formation of cracks. The propagation of these cracks cause internal progressive damage within the structure, which ultimately leads to failure of the pavement due to fatigue. This paper presents a theoretical investigation of crack propagation within concrete pavement and its fatigue characteristics under cyclic loading. A numerical fatigue performance model has been developed for this purpose. The model is based on fictitious crack approach for the propagation of cracks and stress degradation approach for estimating the bridging stress under cyclic loading. Using the numerical model, a parametric study has been performed for a typical concrete pavement to evaluate its fatigue characteristics for different foundation strengths. The method can be used for prediction of crack propagation in concrete pavement under cyclic loading and gives an estimate of the incremental damage or the entire crack history of the pavement.

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Section: Pavement Configurationmentioning

confidence: 99%

Numerical investigation of fatigue characteristics of concrete pavement

2014

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“…As loading continues and the crack width increases, the contribution of this mechanism decreases. Therefore, it is not effective in crack widths more than 1 mm (Maitra et al 2009). Also in prefabricated connections and joints, aggregate interlock mechanism is not involved at all and has no contribution to shear transfer.…”

Section: Introductionmentioning

confidence: 99%

Bearing Stiffness of UHPC; An Experimental Investigation and A Comparative Study of Regression and SVR-ABC Models

Khazaeeu

Ghalehnovi

2018

ACT

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In this paper results of an experimental investigation on the bearing stiffness (K f ) of Ultra-High Performance Concrete (UHPC) under dowel bars are summarized. The effect of concrete strength, bar diameter, and location of the bar in concrete were investigated. By considering these parameters as input variables, several linear and nonlinear regressions and also Support Vector Regressions (SVRs) by incorporating different kernels are constructed, trained and tested to predict the K f of UHPC. Comparing the results show that in the regression models, quadratic polynomial is more feasible in predicting the K f of UHPC than other proposed functions and among the various kernels, SVR with radial basis function (RBF) kernel exhibits better results than other kernels.

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“…Most of those developments were considered in 2D FEM formulations with elastoplastic constitutive laws for concrete and steel. In these formulations, the reinforcement bars are taken into account by 1D finite elements embedded in the concrete plane elements and distributed along the longitudinal and transversal directions, as shown in the works of Bhatt and Kader [6], Martín-Perez and Pantazopoulou [23], He and Kwan [16], El-Ariss [11], Oliver et al [27], Frantzeskakis and Theillout [13], Soltani et al [31], Maitra et al [22], Belletti et al [5], Ince et al [17] and Nogueira [26].…”

Section: Introductionmentioning

confidence: 99%

Material and geometric nonlinear analysis of reinforced concrete frame structures considering the influence of shear strength complementary mechanisms

Nogueira

Venturini

Coda

2013

Lat. Am. j. solids struct.

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A mechanical model for the analysis of reinforced concrete frame structures based on the Finite Element Method (FEM) is proposed in this paper. The nonlinear behavior of the steel and concrete is modeled by plasticity and damage models, respectively. In addition, geometric nonlinearity is considered by an updated lagrangian description, which allows writing the structure equilibrium in the last balanced configuration. To improve the modeling of the shear influence, concrete strength complementary mechanisms, such as aggregate interlock and dowel action are taken into account. A simplified model to compute the shear reinforcement contribution is also proposed. The main advantage of such a model is that it incorporates all these effects in a one-dimensional finite element formulation. Two tests were performed to compare the provided numerical solutions with experimental results and other one-and bi-dimensional numerical approaches. The tests have shown a good agreement between the proposed model and experimental results, especially when the shear complementary mechanisms are considered. All the numerical applications were performed considering monotonic loading.

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Load Transfer Characteristics of Dowel Bar System in Jointed Concrete Pavement

Cited by 47 publications

References 17 publications

Numerical investigation of fatigue characteristics of concrete pavement

Numerical investigation of fatigue characteristics of concrete pavement

Bearing Stiffness of UHPC; An Experimental Investigation and A Comparative Study of Regression and SVR-ABC Models

Material and geometric nonlinear analysis of reinforced concrete frame structures considering the influence of shear strength complementary mechanisms

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