The relative contributions of sagittal, frontal, and transverse joint works to self-paced incline and decline slope walking

The Pavement ME transverse joint faulting model incorporates mechanistic theories that predict development of joint faulting in jointed plain concrete pavements (JPCP). The model is calibrated using the Long-Term Pavement Performance database. However, the Mechanistic-Empirical Pavement Design Guide (MEPDG) encourages transportation agencies, such as state departments of transportation, to perform local calibrations of the faulting model included in Pavement ME. Model calibration is a complicated and effort-intensive process that requires high-quality pavement design and performance data. Pavement management data—which is collected regularly and in large amounts—may present higher variability than is desired for faulting performance model calibration. The MEPDG performance prediction models predict pavement distresses with 50% reliability. JPCP are usually designed for high levels of faulting reliability to reduce likelihood of excessive faulting. For design, improving the faulting reliability model is as important as improving the faulting prediction model. This paper proposes a calibration of the Pavement ME reliability model using pavement management system (PMS) data. It illustrates the proposed approach using PMS data from Pennsylvania Department of Transportation. Results show an increase in accuracy for faulting predictions using the new reliability model with various design characteristics. Moreover, the new reliability model allows design of JPCP considering higher levels of traffic because of the less conservative predictions.

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Transverse Joint Details with Tight Bend Diameter U-Bars for Accelerated Bridge Construction

Journal of Structural Engineering ◽

10.1061/(asce)st.1943-541x.0000518 ◽

2012 ◽

Vol 138 (6) ◽

pp. 697-707 ◽

Cited By ~ 10

Author(s):

Zhongguo John Ma ◽

Samuel Lewis ◽

Qi Cao ◽

Zhiqi He ◽

Edwin G. Burdette ◽

...

Keyword(s):

Accelerated Bridge Construction ◽

Bridge Construction ◽

Transverse Joint

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

Transportation Research Record Journal of the Transportation Research Board ◽

10.1177/0361198196152500105 ◽

1996 ◽

Vol 1525 (1) ◽

pp. 35-43 ◽

Cited By ~ 1

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.

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Transverse joint aperture simulation of high arch dam based on measured temperature in construction period

Wuhan University Journal of Natural Sciences ◽

10.1007/s11859-014-1026-0 ◽

2014 ◽

Vol 19 (4) ◽

pp. 361-368 ◽

Cited By ~ 1

Author(s):

Chao Zhang ◽

Xiaolin Chang ◽

Xinghong Liu ◽

Yin Duan

Keyword(s):

Arch Dam ◽

Measured Temperature ◽

High Arch Dam ◽

Construction Period ◽

Transverse Joint

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Towards an understanding of the loosening characteristics of prevailing torque nuts

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science ◽

10.1243/09544062jmes1493 ◽

2010 ◽

Vol 224 (2) ◽

pp. 483-495 ◽

Cited By ~ 13

Author(s):

W Eccles ◽

I Sherrington ◽

R D Arnell

Keyword(s):

Axial Load ◽

Axial Loading ◽

Transverse Displacement ◽

Test Machine ◽

Transverse Joint ◽

Metal Type ◽

Prevailing Torque ◽

Transverse Movement ◽

Complete Detachment ◽

Constant Axial Load

Prevailing torque nuts are an extremely popular method of providing resistance to vibration-induced self-loosening of fasteners. Such nuts have a self-contained prevailing torque feature that provides a degree of resistance to rotation. Although such nuts are frequently used, it is not widely realized that they can occasionally come completely detached from bolts. The mechanism by which this can occur has hitherto been unidentified since it has not been possible to replicate detachment under laboratory testing. This article identifies a general condition that can result in the complete loosening and detachment of prevailing torque type nuts. This mechanism involves the application of an axial load when transverse joint slip is occurring. This article describes a modified Junker test machine that allows the application of axial loading to a joint while experiencing transverse displacement. Tests have been completed using an intermittent as well as a constant axial load. Loading in both modes has been demonstrated to result in the complete detachment of this nut type. Based on this investigation, if the magnitude of the axial loading exceeds the residual preload in the bolt retained from sustaining transverse movement alone, the all-metal type of prevailing torque nut can completely detach. Applications that involve shear and axial loading being simultaneously applied to a joint are numerous in engineering.

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Study on Mechanism of Crack on Upstream Surface of Super-High Arch Dam

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.438-439.1325 ◽

2013 ◽

Vol 438-439 ◽

pp. 1325-1328

Author(s):

Jun Feng Guan ◽

Long Bang Qing ◽

Juan Wang ◽

Wei Feng Bai ◽

Yu Hu

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Stress Concentration ◽

Three Dimensional ◽

Arch Dam ◽

High Arch Dam ◽

Transverse Joint ◽

Dimensional Finite Element ◽

Three Dimensional Finite Element ◽

Element Method

A kind of crack with similar characteristics has been discovered on the upstream surface of super-high arch dam. In this paper, the reason of cracking was analyzed by the three-dimensional finite element method. It is found that the stress concentration of concrete near the water-stop structure led to the concrete initial cracking in the process of transverse joint open.

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Relative Costs of Various Concrete Pavement Features

Transportation Research Record Journal of the Transportation Research Board ◽

10.3141/1574-13 ◽

1997 ◽

Vol 1574 (1) ◽

pp. 99-102 ◽

Cited By ~ 1

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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