Sources, mitigation and implications of skew-related concrete deck cracks in girder bridges

Okumus, Pinar; Arancibia, Mauricio Diaz

doi:10.1080/15732479.2020.1818794

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…The causes can be divided into three categories: (I) Concrete used in the leveling overlay lacks cracking resistance. Specifically, concrete is easy to crack under overloading due to complex traffic and significant temperature variations [ 14 , 15 ] or producing early shrinkage cracks due to weak resistance in shrinkage deformation [ 16 ]. It is difficult to inhibit the development of cracks in concrete once cracked.…”

Section: Introductionmentioning

confidence: 99%

Preliminary Exploration of Economic Polypropylene-Fiber-Reinforced ECC with Superfine River Sand (SSPP-ECC) Applied to a Bridge Pavement Leveling Overlay

et al. 2022

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In response to the current common disease of concrete leveling overlays of bridge pavement in China, the feasibility of using an economic SSPP-ECC with local waste superfine sand as an alternative material for a leveling overlay was proposed in this study. To evaluate the interface bonding property in the girder between the SSPP-ECC and concrete, a slant shear test and split tensile test were designed to study the interfacial shear and tensile properties of the ordinary concrete/ordinary concrete (OC/OC) and ordinary concrete/SSPP-ECC (OC/ECC), where the results showed that SSPP-ECC could significantly improve the interface shear stress and split tensile strength compared to ordinary concrete. Furthermore, the damage status of OC/ECC no longer involved fracturing along the interface; instead, each of the two substrates was partially destroyed, which revealed that OC/ECC had a high bonding effect. Moreover, a restrained shrinkage test was carried out to evaluate the shrinkage property of SSPP-ECC, where the result showed that the shrinkage strain of SSPP-ECC was slightly lower than concrete, where the average cracking time for SSPP-ECC was far longer than for ordinary concrete under the same ambient drying conditions; furthermore, the stress rate for SSPP-ECC revealed that it was a low-cracking-risk material. Meanwhile, the crack width of SSPP-ECC was only 0.1 mm after 35 d, which showed that SSPP-ECC had a more substantial crack width control capacity relative to concrete. The test results initially verified the feasibility and great potential of economic SSPP-ECC applied in a bridge pavement leveling overlay.

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Section: Introductionmentioning

confidence: 99%

Preliminary Exploration of Economic Polypropylene-Fiber-Reinforced ECC with Superfine River Sand (SSPP-ECC) Applied to a Bridge Pavement Leveling Overlay

et al. 2022

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“…When an expansion joint is used in a bridge deck, elements such as chemicals and debris can leak through the joints and cause problems such as joint spalling, freezing, and thawing as well as corrosion [6]. However, even with the benefits of using jointless bridge construction, unique problems occur with both semi-integral abutment bridges and fully integral abutment bridges that associates with the bridge skewness [7]. When deciding if a semi-integral or fully integral bridge is more appropriate, it is important to find the type and magnitude of the forces it is subjected to.…”

Section: Introductionmentioning

confidence: 99%

Environment-Induced Performance of End Concrete Diaphragm in Skewed Semi-Integral Bridges

Hussein¹,

Khoury

Lucas

2022

Buildings

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Past research has shown that as skewed bridges change temperature, additional lateral movement or forces will occur along with the elongation of the bridge. Even though past research has documented this behavior, lateral movements of semi-integral bridge superstructure associated with temperature effects on bridge skewness have not been well predicted. In this study, the seasonal movements of a 24-year-old semi-integral bridge caused by temperature effects with skewed abutment have been investigated by conducting a series of field measurements on bridges subjected to various environmental climates. The measured data showed that as the bridge heated up, the superstructure tended to move toward the acute corner of the bridge, and the bridge would contract towards its obtuse corner with a negative temperature change. During warm weather, the cracks on the end diaphragm tended to open with a positive temperature change and close with a negative temperature change, which was much more predictable than the cold weather behavior. This behavior confirms that even though the bridge moves linearly with temperature, the end diaphragm response to the temperature depends on the season. Movement of the bridge superstructure from temperature change has caused cracks in the end diaphragm, which are now propagating to the deck. These cracks could damage the bridge enough that it would require repair work in the future. The evidence in this study will help provide a complete picture of seasonal jointless bridge behavior so future semi-integral bridges can be made safer and more efficient.

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Structural Performance of Acute Corners on Skewed Bridge Decks Using Non-Linear Modeling of the Deck Parapet

Mawson¹,

Mehr²,

Constant³

et al. 2022

Infrastructures

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In modern transportation projects, the demand for skewed bridges is increasing. Restrictive site constraints, particularly in urban infrastructure projects, yield severely skewed bridges that demand specific design and construction considerations. In particular, the acute corners have reinforcement details that are challenging to construct and often perform poorly. Although the Federal Highway Administration has recognized this problem, to date a simplified detail has not been suggested and evaluated. To tackle this challenge, the Connecticut Department of Transportation partnered with the University of Connecticut to propose a simplified reinforcement detail for acute corners that replaces the normal transverse reinforcement with reinforcement placed along the skew with specific detailing to avoid congestion. An analytical study was conducted using CSiBridge to evaluate the performance of the detail with different skew angles. A series of pushover analyses were performed to capture the flexural yielding of the parapet and measure the stresses in the reinforcing bars in the slab. Based on these findings, a simplified detail for the acute corner of skewed bridge decks is provided.

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Sources, mitigation and implications of skew-related concrete deck cracks in girder bridges

Cited by 3 publications

References 19 publications

Preliminary Exploration of Economic Polypropylene-Fiber-Reinforced ECC with Superfine River Sand (SSPP-ECC) Applied to a Bridge Pavement Leveling Overlay

Preliminary Exploration of Economic Polypropylene-Fiber-Reinforced ECC with Superfine River Sand (SSPP-ECC) Applied to a Bridge Pavement Leveling Overlay

Environment-Induced Performance of End Concrete Diaphragm in Skewed Semi-Integral Bridges

Structural Performance of Acute Corners on Skewed Bridge Decks Using Non-Linear Modeling of the Deck Parapet

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