Performance of a Developed TL-5 Concrete Bridge Barrier Reinforced with GFRP Hooked Bars: Vehicle Crash Testing

Sennah, Khaled; Mostafa, Ahmed

doi:10.1061/(asce)be.1943-5592.0001184

“…According to the parameters of the 10-ton truck specified in the "New Standard", the ls-dyna finite element simulation model was established by using the CAE preprocessing software hypermesh, and the simulation parameters were set by referring to the high-precision simulation model verified by the collision test [6][7][8][9][10]. Figure 3 In the simulation model, the boundary conditions of the model were set according to the standard collision conditions.…”

Section: Simulation Collision Analysismentioning

confidence: 99%

Protection Capability Analysis of the Common A-grade Corrugated Beam Barrier for the Truck

Sai,

Gong,

Liu

et al. 2024

E3S Web of Conf.

0

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In order to understand the protective capability of the common A-grade corrugated beam barrier for the truck, the method of the computer simulation and the full-scale impact test with real vehicles were used to research it. The results show that the ultimate protection energy of the common A-grade corrugated beam barrier for the truck is 125kJ, which can satisfy the requirements of the old standard, but can not satisfy the requirements of the new standard. The research results can provide basic data for the rational application of the common Agrade corrugated beam barrier.

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“…Results showed that the characteristic compressive strength of concrete used for the barrier wall was 34.4 MPa . The barrier was crash tested using a tractor-trailer (Sennah and Mostafa, 2018), after which the barrier wall was tested under increasing applied load to failure to determine its structural behaviour, crack pattern and ultimate load-carrying capacity under equivalent static load simulating vehicle collision at the interior and end locations shown in Figure 3-5. To simulate these two load cases, the barrier wall was loaded at its end with a horizontal line-load at the height of 900 mm above the top surface of the asphalt and applied over a 2400 mm length.…”

Section: -64mentioning

confidence: 99%

Development of GFRP-Reinforced Bridge Barrier Deck-Slab System for Sustainable Construction

Rostami¹

2023

Preprint

0

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<p>For the past decade, Glass Fibre Reinforced Polymer (GFRP) has been significantly utilized as an alternative to steel reinforcement, as the corrosion of black steel reinforcement subjected to severe environmental conditions leads to structural stability concerns. In Canada, as the bridge superstructures are exposed to such a harsh environment, developing a cost-effective and sustainable design with GFRP reinforced for bridge deck slabs and barrier walls are essential. This dissertation presents six phases of research conducted in the design of GFRP reinforced concrete bridge barrier. In phase I, an extensive study has been conducted on the GFRP bars as anchorage for the TL-5 barrier-deck slab connection. In this phase, seven configurations of GFRP-reinforced barrier detailing, using two different bar profiles, were studied. In phase II, a full-scale TL-5 bridge barrier with special profile GFRP hooked bar anchors as connecting bars to the deck slab was constructed and subjected to static transverse loading at both interior and exterior locations to determine its ultimate load-carrying capacity, failure mode and crack patterns. In phase III, an innovative GFRP bridge barrier design based on the adopted barrier configurations specified by the Ministry of Transportation of Quebec (MTQ) has been developed, four configurations of GFRP-reinforced barrier detailing, using headed-end GFRP bars, were constructed. The proposed barrier specimens were tested to determine their ultimate load carrying capacities and failure modes. In phases IV and V, the anchorage capacity of a newly developed GFRP hooked bar was investigated. Four configurations of full-size TL-5 and TL4 GFRP-reinforced barrier detailing, using reduced-size180 ̊ hooked GFRP bars, were constructed. The proposed barriers were tested to determine their ultimate load carrying capacities and failure modes. In phase VI, a thorough investigation of pullout strength and bond behaviour of post-installed GFRP bars subjected to wet and dry freeze and thaw cycles has been performed. A total of 180 concrete cubes were cast and tested under monotonic pull-out force till failure. In summary, this research led to a sustainable and accurate design method for three profiles of the GFRP reinforced barrier wall and the barrier-deck joint to be adopted by bridge engineers in the future design of bridge barriers in Canada.</p>

show abstract

“…Results showed that the characteristic compressive strength of concrete used for the barrier wall was 34.4 MPa . The barrier was crash tested using a tractor-trailer (Sennah and Mostafa, 2018), after which the barrier wall was tested under increasing applied load to failure to determine its structural behaviour, crack pattern and ultimate load-carrying capacity under equivalent static load simulating vehicle collision at the interior and end locations shown in Figure 3-5. To simulate these two load cases, the barrier wall was loaded at its end with a horizontal line-load at the height of 900 mm above the top surface of the asphalt and applied over a 2400 mm length.…”

Section: -64mentioning

confidence: 99%

Development of GFRP-Reinforced Bridge Barrier Deck-Slab System for Sustainable Construction

Rostami¹

2023

Preprint

0

View full text Add to dashboard Cite

<p>For the past decade, Glass Fibre Reinforced Polymer (GFRP) has been significantly utilized as an alternative to steel reinforcement, as the corrosion of black steel reinforcement subjected to severe environmental conditions leads to structural stability concerns. In Canada, as the bridge superstructures are exposed to such a harsh environment, developing a cost-effective and sustainable design with GFRP reinforced for bridge deck slabs and barrier walls are essential. This dissertation presents six phases of research conducted in the design of GFRP reinforced concrete bridge barrier. In phase I, an extensive study has been conducted on the GFRP bars as anchorage for the TL-5 barrier-deck slab connection. In this phase, seven configurations of GFRP-reinforced barrier detailing, using two different bar profiles, were studied. In phase II, a full-scale TL-5 bridge barrier with special profile GFRP hooked bar anchors as connecting bars to the deck slab was constructed and subjected to static transverse loading at both interior and exterior locations to determine its ultimate load-carrying capacity, failure mode and crack patterns. In phase III, an innovative GFRP bridge barrier design based on the adopted barrier configurations specified by the Ministry of Transportation of Quebec (MTQ) has been developed, four configurations of GFRP-reinforced barrier detailing, using headed-end GFRP bars, were constructed. The proposed barrier specimens were tested to determine their ultimate load carrying capacities and failure modes. In phases IV and V, the anchorage capacity of a newly developed GFRP hooked bar was investigated. Four configurations of full-size TL-5 and TL4 GFRP-reinforced barrier detailing, using reduced-size180 ̊ hooked GFRP bars, were constructed. The proposed barriers were tested to determine their ultimate load carrying capacities and failure modes. In phase VI, a thorough investigation of pullout strength and bond behaviour of post-installed GFRP bars subjected to wet and dry freeze and thaw cycles has been performed. A total of 180 concrete cubes were cast and tested under monotonic pull-out force till failure. In summary, this research led to a sustainable and accurate design method for three profiles of the GFRP reinforced barrier wall and the barrier-deck joint to be adopted by bridge engineers in the future design of bridge barriers in Canada.</p>

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Performance of a Developed TL-5 Concrete Bridge Barrier Reinforced with GFRP Hooked Bars: Vehicle Crash Testing

Cited by 10 publications

References 6 publications

Protection Capability Analysis of the Common A-grade Corrugated Beam Barrier for the Truck

Protection Capability Analysis of the Common A-grade Corrugated Beam Barrier for the Truck

Development of GFRP-Reinforced Bridge Barrier Deck-Slab System for Sustainable Construction

Development of GFRP-Reinforced Bridge Barrier Deck-Slab System for Sustainable Construction

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