Innovative Overload Permitting for Heavy Loads in Manitoba

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Increased demand for hauling heavier loads in Manitoba has led to the development of innovative overload permitting processes by the Department of Infrastructure and Transportation. Using advanced design and load rating specifications, they approved a superload weighing 363,250 kg (800,830 lbs) for transport, showcasing their commitment to efficient water management and infrastructure maintenance. The review process involved assessing different truck configurations and routes before granting the permit. The case study also highlights the engineering details of structures like the Red River Bridge, built to withstand significant live loads.

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Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Innovative Overload Permitting in Manitoba Allowing a 363 250 Kg (800,830 LB) G.V.M. Superload Presented by: Geoffrey C. Oramasionwu, M.Eng., P.Eng. Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

INTRODUCTION Increased demand to haul heavier loads Many structures nearing the end of their Service Life Increasing number of overload permit applications MIT uses the AASHTO LRFD and LRFR Specifications for Design and Load Rating AASHTOware Bridge Rating Program uses a refined rating method This AASHTOWare Bridge Rating enabled MIT to review and approve a 363, 250 Kg (800830 LB) overload Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

The Overload Permit THREE TRANSFORMERS, EACH WEIGHED IN AT GVM =175,450 kg (386,800 lbs) Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Two self propelled units Dual 20-line hydraulic trailer units 16 tires per axle GVM = 363,250 kg (800,830 lbs) Total length = 34 m (110ft Approx.) Total height = 7.435 m (24ft) Total width = 7.55 m (24.77ft) Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

ROUTE OPTIONS Water Management and Structures reviewed three different truck configurations and three different routes before approving the permit application. Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Red River Bridge Precast Prestressed Concrete I Girder Designed and built id 1975 for AASHTO HS25 Truck Live Load In composite action with a 200 mm (8 in) reinforced concrete deck Seven simply supported spans. Span length = 36.576 m (120 ft) Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

ST ADOLPHE COULEE BRIDGE 12 m (40 ft) Precast Pre stressed Concrete Channel Girder 100 mm (4 in) thick asphalt overlay wearing surface Five simply supported spans. Span length = 11.8 m (38.74 ft) Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

BRIDGE LOAD RATING Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

LONGITUDINAL CONFIGURATION DEFINITION NUMBER OF AXLES = 20 AXLE SPACING = 1.5 m Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

TRANSVERSE CONFIGURATION OF A NON- STANDARD GAGE 8 WHEELS PER AXLE VARIABLE WHEEL SPACING Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

OUTPUT OF VEHICLE PLAN LONGITUDINAL FOOTPRINT OF TRUCK Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

OUTPUT OF VEHICLE AXLE PLAN (AXLE 1) Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

ACTUAL CROSS-SECTION OF THE BRIDGE BRIDGE DECK IS MODELED AS SHELL ELEMENTS WITH MATERIAL PROPERTIES BEING THE SAME AS THE BRIDGE DECK Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

FINITE ELEMENT MODELING CORE ELEMENT DATA CREATED IN BrRAT BRIDGE WORKSPACE WERE EXPORTED TO THE STAAD ENGINE STAAD USES THE INFORMATION TO CREATE THE FINITE ELEMENT MODEL FOR THAT STRUCTURE DECK SLAB SHELL ELEMENTS BEAM INFINETELY STIFF MEMBERS Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

STAAD THREE DIMENTIONAL VIEW OF THE MODEL Bending Moment, Shear Force and Displacement Envelopes are generated for the Unit Load placed on at each element nodes. A UNIT LOAD IS APPLIED AT EACH NODE OF THE SHELL ELEMENTS Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

3D Stress Influence Surface for the unit Load Case No. 12, Placed at a Shell Node. Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

STAAD THREE DIMENTIONAL VIEW OF THE MODEL Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

3D Stress Influence Surface for the unit Load Case No. 6, Placed at a Shell Node. Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

RED RIVER BRIDGE RATING FACTORS AASHTO STANDARD Single/two or more Lanes FINITE ELEMENT MODEL AASHTO LRFD Single/Multi- Lanes LIMIT STATE GIRDER CHBDC Shear Moment Shear Moment Shear Moment Shear Moment Shear Moment 0.614 0.390/0.390 0.468/0.429 0.131 1 0.567 0.614 0.525 0.390/0.390 0.98/1.24 0.98/1.24 0.468/0.429 0.633/0.731 0.436/0.622 0.131 0.207 0.207 2 0.614 0.98/1.24 0.633/0.731 0.221 3 0.525 0.98/1.24 0.436/0.622 0.221 0.614 0.98/1.24 0.633/0.731 0.231 4 0.525 0.98/1.24 0.436/0.622 0.231 0.614 0.85/0.85 0.582/0.619 0.223 5 0.567 0.85/0.85 0.582/0.619 0.223 Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

ST. ADOLPHE COULEE BRIDGE RATING FACTORS AASHTO STANDARD Single/two or more Lanes FINITE ELEMENT MODEL AASHTO LRFD Single/Multi- Lanes GIRDER LIMIT STATE CHBDC Shear Moment Shear Moment Shear Moment Shear Moment Shear Moment Shear Moment Shear Moment Shear Moment 0.400 0.339 0.400 0.345 0.400 0.345 0.400 1.00/1.00 1.00/1.00 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 0.56/0.72 1.00/1.00 1.00/1.00 0.60/0.60 0.60/0.60 0.60/0.60 0.325/0.325 0.60/0.60 0.325/0.325 0.60/0.60 0.055 0.055 0.172 0.172 0.180 0.180 0.089 0.089 0.089 0.089 0.180 0.180 0.172 0.172 0.055 0.055 1 2 3 4 0.345 0.400 0.345 0.400 0.345 0.400 0.345 0.400 0.339 0.325/0.325 0.60/0.60 0.325/.0325 0.60/0.60 0.325/.0325 0.60/0.60 0.325/.0325 0.60/0.60 0.60/0.60 5 6 7 8 Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

RATING FACTORS FROM DIFFERENT CODES For Red River Bridge 1.4 1.2 Interior Girder Shear Interior Girder Moment 1 Exterior Girder Shear 0.8 Exterior Girder Moment 0.6 0.4 0.2 0 CHBDC AASHTO Standard Single Lane AASHTO Standard Multi Lane AASHTO LRFD Single Lane AASHTO LRFD Multi Lane Finite Element Model Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

RATING FACTORS FROM DIFFERENT CODES St. Adolphe Coulee Bridge 1.2 1 0.8 Interior Girder Shear 0.6 Interior Girder Moment Exterior Girder Shear 0.4 Exterior Girder Moment 0.2 0 CHBDC AASHTO Standard Single Lane AASHTO Standard Multi Lane AASHTO LRFD Finite Element Model Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

RATING FACTORS FROM DIFFERENT CODES LOAD RATING IS CARRIED OUT USING THE CONVENTIONAL BRIDGE RATING PROCEEDURES AS DESCRIBED EARIER IT CAN BE SEEN THAT THIS SUPERLOAD WOULD NOT HAVE BEEN APPROVED IF WE HAD USED THE CONVENTIONAL DISTRIBUTION FACTOR CALCULATION METHOD. Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Manitoba Hydro Transformers Nov 3/2012 8 scales linked together (KG) axle 1 st* Nov 3/2012 1 17,550 2 16,750 3 17,150 4 17,600 5 17,300 6 17,900 7 19,050 8 18,900 9 19,850 10 18,800 11 18,500 12 18,700 13 18,650 14 17,950 15 17,900 16 16,250 17 17,450 18 17,600 19 17,500 20 15,500 total 356,850 362,400 Nov 14/2012 drive side 7,400 7,450 7,600 7,600 7,500 7,400 9,900 9,800 10,100 10,050 9,750 9,900 9,750 9,850 10,150 9,050 10,500 8,850 8,850 10,500 separate weighing, 4 scales/side (KG) FEB 05/2013 separate weighing, 4 scales/side (KG) passenger side Non 14/2012 drive side 7,150 14,550 7,350 14,800 7,450 15,050 7,300 14,900 7,400 14,900 7,300 14,700 10,450 20,350 10,250 20,050 10,150 20,250 10,200 20,250 10,000 19,750 9,800 19,700 9,700 19,450 9,600 19,450 9,700 19,850 9,150 18,200 9,900 20,400 9,400 18,250 8,950 17,800 10,100 20,600 363,250 total 173,350 RATING FACTORS FROM DIFFERENT CODES 2nd* Nov 3/2012 17,400 17,400 17,600 18,000 17,600 18,400 18,650 18,600 18,900 18,650 19,400 18,900 18,600 19,050 17,750 17,900 17,700 17,550 17,350 17,000 passenger side Feb 05/2013 7750 7850 7950 8050 8050 8150 9950 10000 10000 9800 9900 9750 9750 9800 9650 9550 9750 9500 9250 9200 7950 7850 7900 7900 7800 8050 9400 9150 9250 8950 8900 8850 8900 8900 9050 9100 9150 8950 8900 8450 15,700 15,700 15,850 15,950 15,850 16,200 19,350 19,150 19,250 18,750 18,800 18,600 18,650 18,700 18,700 18,650 18,900 18,450 18,150 17,650 357,000 WE ALSO NEEDED TO VERIFY THAT OUR MODEL IS CORRECT BY DOING SOME MEASUREMENTS DURING ONE OF MOVES. 181,950 181,300 183,650 * During the first weighing, the unit was on an angle, and the mover attempted to maintain levelness by adjusting hydraulics. ** The second weighing was on a relatively flat surface, with no pitch adjustments. 25,000 MEASURED WEIGHT OF EACH AXLE 20,000 PORTABLE SCALES 15,000 AXLE WEIGHT 1 st* Nov 3/2012 2nd* Nov 3/2012 10,000 Non 14/2012 Feb 05/2013 5,000 0 0 5 10 15 20 25 AXLE NUMBER Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures

Permit Conditions Travel from 8:00 pm 6:00 am 10 km/h maximum speed Traveling on centreline of bridge Police escort inside the city limits and Manitoba Compliance Officers for traffic control. Total move three nights Manitoba Infrastructure and Transportation RADBUG - August 2014 Water Management and Structures