Effect of Joint- and Pavement-Related Parameters on Load Transfer Characteristics of Aggregate Interlocked Jointed Concrete Pavement

2019 ◽  
Vol 5 (2) ◽  
Author(s):  
Swati Roy Maitra ◽  
K. Sudhakar Reddy ◽  
L. S. Ramachandra
Keyword(s):  
Load Transfer ◽  
Concrete Pavement ◽  
Transfer Characteristics ◽  
Jointed Concrete Pavement

scholarly journals Load Transfer Characteristics and Durability Study of GFRP Dowels in Jointed Concrete Pavement

2012 ◽  
Vol 5 ◽  
pp. 277-282 ◽  
Author(s):  
Luo Ke Li ◽  
Yi Qiu Tan ◽  
Xiang Bing Gong ◽  
Yun Liang Li
Keyword(s):  
Evaluation Method ◽  
Load Transfer ◽  
Element Model ◽  
Concrete Pavement ◽  
Shear Transfer ◽  
Transfer Characteristics ◽  
Jointed Concrete Pavement ◽  
Feasible Alternative ◽  
Glass Fibre Reinforced ◽  
Term Performance

The corrosion of steel dowels in concrete pavement can compromise the load transfer capability of joints and lead to premature damage. To solve this problem, the non-corrosive glass fibre reinforced polymers (GFRP) bar has been used as dowels in concrete pavement instead of the steel dowels.This thesis demonstrates the Load Transfer Characteristics of a GFRP dowels with the help of a 3D finite-element model, and various evaluation method and index are studied as well, including: (1)efficiency of load transfer , (2)coefficient of shear transfer , (3) distribution ratio of shear transfer. An accelerated test is applied to examine the long-term performance of the GFRP dowel bars by using self-designed equipment.This study shows that GFRP dowels is a feasible alternative to steel dowels which can entirely meet the needs of road performance, and the research results will be useful in the design and application of GFRP dowels in jointed concrete pavements.

The Dowel Group Action in Jointed Concrete Pavement

2012 ◽  
Vol 622-623 ◽  
pp. 1892-1895
Author(s):  
Yi Qiu Tan ◽  
Yun Liang Li ◽  
Luo Ke Li ◽  
Zhong Jun Xue
Keyword(s):  
Group Action ◽  
Shear Force ◽  
Load Transfer ◽  
Concrete Pavement ◽  
Force Distribution ◽  
Shear Load ◽  
Concrete Pavements ◽  
Wheel Load ◽  
Jointed Concrete Pavement ◽  
Dowel Bar

The wheel load transfer across a joints in concrete pavement is accomplished mainly by dowel bar system, dowels are installed in order to allow shear load transfer across slab joints. The dowel group action has been examined in this paper via from using of 3-D FE mode. Numerical model results are presented in four formats in this study, including shear force diagram, load transfer ratio by shear force, dowel shear force distribution and dowel shear ratio. The relationships between applied wheel load and dowel group action will be useful in the design and evaluation of dowel jointed concrete pavements.

Mechanistic-Based Parametric Model for Predicting Rolling Resistance of Concrete Pavements

2019 ◽  
Vol 2673 (7) ◽  
pp. 341-350 ◽  
Author(s):  
Danilo Balzarini ◽  
Karim Chatti ◽  
Imen Zaabar ◽  
Ali A. Butt ◽  
John T. Harvey
Keyword(s):  
Life Cycle ◽  
Energy Dissipation ◽  
Life Cycle Cost ◽  
Load Transfer ◽  
Rolling Resistance ◽  
Concrete Pavement ◽  
Slab Thickness ◽  
Viscoelastic Deformation ◽  
Jointed Concrete Pavement ◽  
Energy Dissipated

The structural rolling resistance (SRR) is the component of rolling resistance that occurs because of the viscoelastic deformation of the pavement structure. In this paper, a simple model to calculate the energy dissipation as a result of the SRR on rigid pavements is developed for use in applications such as life cycle cost analysis and life cycle assessment. First, the energy dissipated by different vehicles was calculated on 12 concrete pavement sections using a fully mechanistic approach. Using the program DYNASLAB to simulate the vehicles moving along the pavement sections, the energy dissipation was calculated as the work done by the vehicle to overcome the slope seen by the wheels because of the pavement deformation. The results were then used to develop a simple and rapid-to-use model to predict the energy dissipation on any jointed concrete pavement. The model consists of a simple predictive function that can provide the value of the SRR energy dissipation given the mechanical properties of the pavement section (slab thickness and stiffness, modulus of subgrade reaction, subgrade damping coefficient, pavement geometry, and load transfer efficiency) and the loading conditions (speed and loads). The model was based on a sensitivity analysis that was used to select the optimal set of structural and environmental factors.

Mandibular Implant-Supported Overdenture: An In Vitro Comparison of Ball, Bar, and Magnetic Attachments

2013 ◽  
Vol 39 (3) ◽  
pp. 302-307 ◽  
Author(s):  
V. Manju ◽  
T. Sreelal
Keyword(s):  
Stress Distribution ◽  
Strain Gauge ◽  
Load Transfer ◽  
Implant Surface ◽  
Transfer Characteristics ◽  
Ball Bar ◽  
Different Types ◽  
Dial Gauge ◽  
In Vitro Comparison

In an implant-supported overdenture, the optimal stress distribution on the implants and least denture displacement is desirable. This study compares the load transfer characteristics to the implant and the movement of overdenture among 3 different types of attachments (ball-ring, bar-clip, and magnetic). Stress on the implant surface was measured using the strain-gauge technique and denture displacement by dial gauge. The ball/O-ring produces the optimal stress on the implant body and promotes denture stability.

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