Overload Behavior of an Experimental Precast Prestressed Concrete Segmental Bridge

Abdel‐Halim, Mohamed A. H.; McClure, R M; West, Harry

doi:10.15554/pcij.11011987.102.123

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…Nevertheless, it was pointed out that the use of epoxy should be avoided if possible [17] to avoid the problem of smear quality of epoxy and brittle failure [15,16]. Dry joints are further studied as demand for fast construction and they significantly improve efficiency [18], economic, quality and security of construction in PCSBs [7,11,[19][20][21][22][23]. Keyed dry joints are much often proposed than flat dry joints.…”

Section: Introductionmentioning

confidence: 99%

Numeric Analysis on Shear Behavior of High-Strength Concrete Single-Keyed Dry Joints with Fixing Imperfections in Precast Concrete Segmental Bridges

et al. 2020

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Fixing imperfections in keyed dry joints between the concrete segments compromise the performance of precast concrete segmental bridges (PCSBs), which needs to consider carefully. In this study, a finite-element model on high-strength concrete single-keyed dry joints in PCSBs was established and validated by experimental results. Parametric studies on fixing imperfections in key, concrete strengths, and confining pressures were carried out based on that model. The numeric results included crack patterns, load–displacements and shear strength. Fixing imperfections—especially at lower surface of keys—reduced shear strength of single-keyed dry joints by the different shear transfer mechanism. Higher confining pressure and concrete strength improved the shear strength, but they mitigated and aggravated the effect of fixing imperfections at lower surface of key on shear strength, respectively. Compared with simulating results, AASHTO standard overestimated the shear capacity of single-keyed dry joints with fixing imperfections at lower surface of key by up to 0.602–22.0%, but greatly underestimated that of the rest. A modified formula with a strength reduction factor was proposed. For six experimental three-keyed dry-joint specimens and 30 numeric single-keyed dry-joint specimens with or without fixing imperfections, the average ratio of code predictions to experimental results was 90.4% and 81.6%, respectively.

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Section: Introductionmentioning

confidence: 99%

Numeric Analysis on Shear Behavior of High-Strength Concrete Single-Keyed Dry Joints with Fixing Imperfections in Precast Concrete Segmental Bridges

et al. 2020

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Shear Behavior of Joints in Precast Concrete Segmental Bridges

Büyüköztürk¹,

1990

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A Review of Accelerated Pavement Testing Applications in Non-Pavement Research

2021

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Accelerated pavement testing (APT) facilities has been demonstrated for years as a multi-purpose solution for pavement and non-pavement research. Even though APTs are widely known in the pavement industry, little has been publicized about their successful applications in non-pavement research. This paper provides a survey of APT applications in non-pavement research. The purpose of the survey is to review and encourage APT owners and agencies to explore the opportunities that APT facilities can present to promote non-pavement research initiatives. The survey demonstrates the ability of APTs to conduct research for bridges, transportation technology, drainage, geotechnical engineering, automobiles, environmental engineering, highway safety, among others. Non-pavement research can be incorporated into APT programs to diversify funding sources for research operations and promote cooperation with other agencies. Finally, suggestions for future and current APTs are made in this paper, including evaluating connected vehicles, work zone applications, smart infrastructure, truck platooning effects on bridge performance, sustainable drainage systems, bridges, advancement in geotechnical methods, sustainable fuels, and unmanned aerial systems.

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Overload Behavior of an Experimental Precast Prestressed Concrete Segmental Bridge

Cited by 4 publications

References 5 publications

Numeric Analysis on Shear Behavior of High-Strength Concrete Single-Keyed Dry Joints with Fixing Imperfections in Precast Concrete Segmental Bridges

Numeric Analysis on Shear Behavior of High-Strength Concrete Single-Keyed Dry Joints with Fixing Imperfections in Precast Concrete Segmental Bridges

Shear Behavior of Joints in Precast Concrete Segmental Bridges

A Review of Accelerated Pavement Testing Applications in Non-Pavement Research

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