STRUCTURAL EVALUATION METHOD OF TRANSVERSE JOINT OF CONCRETE PAVEMENT CONSIDERING DEGRADATION PROCESS

2018 ◽  
Vol 74 (2) ◽  
pp. 42-51
Author(s):  
Tatsuo NISHIZAWA ◽  
Yuya WAKABAYASHI ◽  
Masataka UCHIDA ◽  
Masayuki YABU
Keyword(s):  
Evaluation Method ◽  
Degradation Process ◽  
Concrete Pavement ◽  
Structural Evaluation ◽  
Transverse Joint

Structural Evaluation of the Transverse Joint of a Concrete Pavement Considering the Degradation Process

2019 ◽  
Vol 2673 (7) ◽  
pp. 319-328
Author(s):  
Tatsuo Nishizawa ◽  
Yuya Wakabayashi ◽  
Masataka Uchida ◽  
Masayuki Yabu
Keyword(s):  
Elastic Moduli ◽  
Load Transfer ◽  
Three Dimensional ◽  
Degradation Process ◽  
Concrete Pavement ◽  
Transverse Joint ◽  
Dimensional Finite Element ◽  
Years Of Service ◽  
Load Transfer Efficiency ◽  
Three Dimensional Finite Element

Effective maintenance of a concrete pavement requires precise evaluation of the load transfer efficiency (LTE) at the transverse joint, which is simply calculated from the falling weight deflectometer (FWD) deflections at the loaded and unloaded slabs. In this study, the FWD deflections were simulated with the randomly generated elastic moduli of the pavement layers using the three dimensional finite element method considering the degradation process at a joint, which was categorized into five stages, from completely sound, to having broken dowels and a void underneath the joint. A database of FWD deflections, layer elastic moduli and the associated stage was created from the simulation results. The layer moduli were identified from the measured FWD deflections at a joint by searching the closest calculated FWD deflections to those measured from the database. The results of the analysis not only provide the layer moduli, but also the degradation stage of the joint to help engineers determine the appropriate rehabilitation measures. The method was validated on a 16 year old concrete pavement, on which the FWD measurements were performed three times: just before opening to traffic, after 9 years and 16 years of service. The identified layer moduli were not changed after 16 years of service, and some joints degraded owing to dowel corrosion, broken dowels and the existence of voids underneath the joints. The developed method is able to show the entire picture of the state of the joints in a section and also provide information on which parts of a particular joint have deteriorated.

scholarly journals STRUCTURAL EVALUATION OF TRANSVERSE JOINT OF 30 YEARS CONCRETE PAVEMENT ON EXPRESSWAY WITH FWD BACKCALCULATION

2020 ◽  
Vol 76 (1) ◽  
pp. 1-11
Author(s):  
Tatsuo NISHIZAWA ◽  
Kenji TAKAI ◽  
Naofumi NORO ◽  
Nobuhiro KURATO ◽  
Yasuhiro NAKAMURA
Keyword(s):  
Concrete Pavement ◽  
Structural Evaluation ◽  
Transverse Joint

scholarly journals CONCRETE PAVEMENT STRUCTURAL EVALUATION USING FWD DEFLECTION

2001 ◽  
Vol 6 ◽  
pp. 147-154
Author(s):  
Hiroji KOSEKI ◽  
Boming TANG ◽  
Teruhiko MARUYAMA
Keyword(s):  
Concrete Pavement ◽  
Structural Evaluation

Curling Stress Equation for Transverse Joint Edge of a Concrete Pavement Slab Based on Finite-Element Method Analysis

1996 ◽  
Vol 1525 (1) ◽  
pp. 35-43 ◽  
Author(s):  
Tatsuo Nishizawa ◽  
Tadashi Fukuda ◽  
Saburo Matsuno ◽  
Kenji Himeno
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Fem Analysis ◽  
Concrete Pavement ◽  
Winkler Foundation ◽  
Stress Equation ◽  
The Past ◽  
Transverse Joint ◽  
Foundation Model ◽  
Element Method

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.

scholarly journals CONCRETE PAVEMENT STRUCTURAL EVALUATION BASED ON FWD DEFLECTION

1998 ◽  
Vol 3 ◽  
pp. 85-92
Author(s):  
Hiroji KOSEKI ◽  
Boming TANG ◽  
Teruhiko MARUYAMA
Keyword(s):  
Concrete Pavement ◽  
Structural Evaluation

scholarly journals STUDY ON STRUCTURAL EVALUATION OF CONCRETE PAVEMENT USING FWD DATA

2003 ◽  
Vol 8 ◽  
pp. 163-172
Author(s):  
Yoshitaka MURAKAMI ◽  
Yasushi TAKEUCHI ◽  
Masashi KOYANAGAWA ◽  
Tsuneo MAKI ◽  
Satoshi TANIGUCHI
Keyword(s):  
Concrete Pavement ◽  
Structural Evaluation

Relative Costs of Various Concrete Pavement Features

1997 ◽  
Vol 1574 (1) ◽  
pp. 99-102 ◽  
Author(s):  
Lawrence W. Cole ◽  
Michael J. Hall
Keyword(s):  
Load Transfer ◽  
Relative Effect ◽  
Careful Consideration ◽  
Concrete Pavement ◽  
Thickness Variation ◽  
Portland Cement Concrete ◽  
Joint Spacing ◽  
Transverse Joint ◽  
Pavement Construction ◽  
Joint Load

The design and construction of portland cement concrete pavement involves the selection, specification, and construction of a number of concrete pavement features. Concrete pavement features can significantly affect pavement construction costs. In this study, the relative effect on pavement construction cost of several concrete pavement features was investigated, including concrete pavement thickness, foundation, shoulders, cross-section thickness variation (trapezoidal section), joint spacing, transverse joint load transfer, and transverse joint sealant. Careful consideration and study should be given the cost effects of various features when designing and specifying concrete pavement. The ideal pavement design is one that selects the least costly pavement section that will perform to the expected level over the life of the facility. The least costly pavement section is that with the least life-cycle costs.

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