Stress equation of expansion joint edge of concrete pavement slab based on FEM analysis.

In the design of concrete pavement, curling stresses caused by the temperature difference between the top and bottom surfaces of the slab should be calculated at the transverse joint edge in some cases. However, no such equation has been developed in the past. Accordingly, a curling stress equation was developed based on stress analysis using the finite-element method (FEM). In this FEM analysis, a concrete pavement and its transverse joint were expressed by means of a thin plate–Winkler foundation model and a spring joint model, respectively. Multiregression analysis was applied to the results of the FEM numerical calculation and, consequently, a curling stress equation was obtained. After comparing the calculated results of the equation with curling stress equations developed in the past, it was confirmed that the equation was valid and practical.

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Warping Stress Equation at the Transverse Joint Edge of Concrete Pavement Slab Based on FEM Analysis.

Doboku Gakkai Ronbunshu ◽

10.2208/jscej.1996.532_89 ◽

1996 ◽

pp. 89-96

Author(s):

Tatsuo Nishizawa ◽

Akira Hirukawa ◽

Tadashi Fukuda

Keyword(s):

Fem Analysis ◽

Concrete Pavement ◽

Stress Equation ◽

Transverse Joint ◽

Warping Stress

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Fem Analysis on Geogrid Reinforced Asphalt Concrete Pavement

Geosynthetics in Civil and Environmental Engineering ◽

10.1007/978-3-540-69313-0_125 ◽

2009 ◽

pp. 677-682 ◽

Cited By ~ 1

Author(s):

Y. Y. Fei ◽

Y. H. Yang

Keyword(s):

Asphalt Concrete ◽

Fem Analysis ◽

Concrete Pavement ◽

Asphalt Concrete Pavement

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A THERMAL STRESS CALCULATION METHOD OF CONCRETE PAVEMENT BASED ON TEMPERATURE PREDICTION AND FEM ANALYSIS

Journal of Japan Society of Civil Engineers Ser E1 (Pavement Engineering) ◽

10.2208/jscejpe.72.i_105 ◽

2016 ◽

Vol 72 (3) ◽

pp. I_105-I_113 ◽

Cited By ~ 1

Author(s):

Tatsuo NISHIZAWA ◽

Masashi KOYANAGAWA ◽

Yasushi TAKEUCHI ◽

Kazuyuki KUBO ◽

Toru YOSHIMOTO

Keyword(s):

Thermal Stress ◽

Calculation Method ◽

Fem Analysis ◽

Concrete Pavement ◽

Temperature Prediction ◽

Stress Calculation

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FEM analysis of the bearing plate deflection tests on rubblized concrete pavement

Bearing Capacity of Roads, Railways and Airfields ◽

10.1201/9780203865286.ch64 ◽

2009 ◽

Author(s):

Ying Liu ◽

Z Wang ◽

Y Sheng

Keyword(s):

Fem Analysis ◽

Concrete Pavement ◽

Bearing Plate ◽

Plate Deflection

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Thermal Stress Calculation Method for Concrete Pavement Based on Temperature Prediction and Finite Element Method Analysis

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/2640-12 ◽

2017 ◽

Vol 2640 (1) ◽

pp. 104-114

Author(s):

Tatsuo Nishizawa ◽

Masashi Koyanagawa ◽

Yasusi Takeuchi ◽

Kazuyuki Kubo ◽

Toru Yoshimoto

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Thermal Stress ◽

Thermal Stresses ◽

Concrete Slab ◽

Control Volume ◽

Concrete Pavement ◽

Peak Time ◽

Stress Equation ◽

Element Method

A method to predict thermal stress of a concrete slab was developed in this study. In this method, temperatures and thermal stresses in a concrete slab are predicted by solving a one-dimensional heat transfer equation with the control volume method and three-dimensional finite element method (3DFEM). Predicted temperatures were compared with those measured in various regions in Japan to validate the method. The thermal strains calculated with 3DFEM were also compared with those measured in test concrete pavement slabs to confirm the method’s validity. The relative frequencies of thermal stress for one year were obtained from the calculated stresses. In thin slabs (20 and 23 cm), tensile thermal stress at the bottom was greater than those estimated with the current thermal stress equation, which considers internal stress due to the nonlinearity of the temperature profile in the slab. In thick slabs (25 and 30 cm), by contrast, the current thermal stress equation gave almost the same thermal stress as the finite element method did, although the peak time for the maximum tensile stress was delayed in the thick slabs. The proposed method can be applied to a variety of concrete pavement structures under various temperature conditions.

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