Location

London

Event Website

http://www.csce2016.ca/

Description

A recent design work conducted at Ryerson University on PL-3 bridge barrier has led to an economical glass fibre reinforced polymer (GFRP) bar detailing for sustainable construction. A PL-3 barrier wall of 27.6 m length was constructed using the proposed GFRP bar configuration, incorporating the use of V-Rod headed-end bars. The proposed barrier configuration was recently crash tested to qualify its use in Canada’s highway bridges. Then, wall segments of this barrier were tested under static loading to-collapse to determine their structural behavior, crack pattern and ultimate load carrying capacity under simulated vehicle impact load. Test results led to establishing two Standard drawings by Ontario Ministry of Transportation (MTO) for use by consulting engineers and contractors. The crash-tested barrier dimensions were identical to those specified by Ministry of Transportation of Quebec (MTQ) for PL-3 barrier except that the base of the barrier was 40 mm short and the deck slab is of 200 mm thickness, leading to reduction in the GFRP embedment depth into the deck slab. As such, Ryerson University research team proposed an experimental program to ensure that the resistance of barrier-deck junction, with the reduced width of barrier base and thickness of the deck slab, is greater of equal to the specified factored design load applied to the barrier wall simulating vehicle impact. This paper summarizes the experimental program to justify the modified barrier design to fit with MTQ barrier and deck slab dimensions and experimental findings when compared to the available factored applied moments specified in CHBDC of 2006 for the design of barrier-deck junction. Correlation between the experimental findings and the factored applied moments from CHBDC equivalent vehicle impact forces resulting from the finite-element modelling of the barrier-deck system was conducted followed by recommendations for use of the proposed design in highway bridges in the Province of Quebec.


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Jun 1st, 12:00 AM Jun 4th, 12:00 AM

MAT-732: EXPERIMENTAL STUDY ON THE CAPACITY OF BARRIER DECK ANCHORAGE IN MTQ PL-3 BARRIER REINFORCED WITH HM-GFRP BARS WITH HEADED ENDS

London

A recent design work conducted at Ryerson University on PL-3 bridge barrier has led to an economical glass fibre reinforced polymer (GFRP) bar detailing for sustainable construction. A PL-3 barrier wall of 27.6 m length was constructed using the proposed GFRP bar configuration, incorporating the use of V-Rod headed-end bars. The proposed barrier configuration was recently crash tested to qualify its use in Canada’s highway bridges. Then, wall segments of this barrier were tested under static loading to-collapse to determine their structural behavior, crack pattern and ultimate load carrying capacity under simulated vehicle impact load. Test results led to establishing two Standard drawings by Ontario Ministry of Transportation (MTO) for use by consulting engineers and contractors. The crash-tested barrier dimensions were identical to those specified by Ministry of Transportation of Quebec (MTQ) for PL-3 barrier except that the base of the barrier was 40 mm short and the deck slab is of 200 mm thickness, leading to reduction in the GFRP embedment depth into the deck slab. As such, Ryerson University research team proposed an experimental program to ensure that the resistance of barrier-deck junction, with the reduced width of barrier base and thickness of the deck slab, is greater of equal to the specified factored design load applied to the barrier wall simulating vehicle impact. This paper summarizes the experimental program to justify the modified barrier design to fit with MTQ barrier and deck slab dimensions and experimental findings when compared to the available factored applied moments specified in CHBDC of 2006 for the design of barrier-deck junction. Correlation between the experimental findings and the factored applied moments from CHBDC equivalent vehicle impact forces resulting from the finite-element modelling of the barrier-deck system was conducted followed by recommendations for use of the proposed design in highway bridges in the Province of Quebec.

http://ir.lib.uwo.ca/csce2016/London/Materials/22