BIN-WALL BRIDGE ABUTMENTS PRODUCT GUIDE

Transcription

1 _ ARMTEC.COM BRIDGE MATERIALS / BIN-WALL BRIDGE ABUTMENTS BIN-WALL BRIDGE ABUTMENTS PRODUCT GUIDE LIGHTWEIGHT, GALVANIZED STEEL BIN-WALL BRIDGE ABUTMENTS SUPPORTS BRIDGE SUPER-STRUCTURES AND TRAFFIC LOADINGS Versatile Durable Economical Easy Shipping

2 HISTORY AND APPLICATION For economy in the construction of access roads or highways, it is essential that efficient designs be employed to reduce material costs and time on the project. The most costly ingredient in building roads is often bridge construction, which also can extend the job completion considerably. To solve these problems, Armtec developed galvanized steel Bin-Wall Abutments. This type of abutment has been used on hundreds of bridges built in Canada over the past 30 years. Working alongside the owner s technical representative, Armtec will develop a custom bin-wall abutment solution that conforms to the specified design criteria and site conditions. The Bin-Wall Abutment Inquiry Data Sheet located on page 5 will assist to identify and collect key site parameters. _ TYPICAL APPLICATIONS Remote wilderness roads Logging, mining and other access roads Provincial and municipal highways and roads Advantages of Bin-Wall Bridge Abutments Easily transported because individual components are nested into a compact, light weight load Economical material supply and installation costs All components can be easily handled, eliminating the need for heavy equipment Components are easily bolted together for fast construction, assembled in place or off-site and lifted into position No waiting for formwork, curing time, etc All-weather construction Proven strength and durability All components are galvanized No footings are required Abutments are flexible and will accommodate minor settlement and movement Can be salvaged and reused at another location SNARE RIVER, NWT - BIN-WALL BRIDGE ABUTMENT

3 BAK CREEK NUNGESSOR RD, RED LAKE, ON - BIN-WALL BRIDGE ABUTMENT ELBOW FALLS AND BRAGG CREEK, AB - BIN-WALL BRIDGE ABUTMENT DESIGN NOTES 1. The design procedure to determine the stability of the bins follows the Coulomb Wedge Analysis. Lateral earth pressures on the wall are based on the equilibrium of a failure wedge of soil behind the bin. The principle assumptions of this method are: i. The backfill will be a good quality, free draining, evenly graded granular material possessing a minimum angle of internal friction = 33 degrees. ii. Backfill density = 19 kn/m3. Backfill is compacted to 95% Standard Proctor Density. iii. Soil failure plane is along a straight line originating at the heel of the bin. 2. Minimum allowable factors of safety against overturning and sliding are 2.0 and 1.5 respectively. 3. The maximum design toe pressure beneath the bin, for the heights shown, is 230 kpa. For allowable soil bearing capacities less than 230 kpa, consult your Armtec representative. 4. The dead load and live load end reactions from the bridge superstructure are applied as line loads over the top of the bin. The line load equals the bridge reaction divided by the bearing pad length. The maximum allowable bin heights listed in the tables are based on a bridge dead load between kn/m. The bridge live load is noted directly below each table. (See Cross-Section Figure 2 for location of applied dead and live line loads) 5. Bearing pads must not be in contact with Bin-Wall members. 6. Bridge girder extends into the abutment 1.3m. (See Cross-Section Figure 2) 7. All loads are unfactored. 8. Bin-Wall stringers and/or spacers may require reinforcement consult your Armtec representative for details. 9. It is the owner s responsibility to ensure that actual site conditions meet or exceed the above requirements. It is also the owner s responsibility to check design for global stability. 10. CL-625 is a typical design live load in the CSA Code CAN/CSA-S6 for the design of highway bridges. L-75, L-100, L-150 and L-165 are off highway truck loading designations of the Province of British Columbia, Ministry of Forests and Lands, for the Logging Industry. 11. For walls constructed in or near water, the foundation elevation (bottom of the Bin-Wall) must be established such that it is below potential scour depths. It is important to prevent the loss of foundation material supporting the bins and the loss of fill being retained by the wall. The design of an appropriate embedment (depth below grade to the foundation) and of scour protection is the responsibility of others.

4 TYPICAL BIN-WALL ABUTMENT CROSS-SECTION Figure 1 Stringer stiffener Reinforced concrete or timber bearing pad Figure 2 1.3m 1.0m Top of Road Spacer stiffener Height Rear corner vertical connector Note 4* Note 11* Theoretical Failure Plane Granular Backfill Stringers Vertical connector Grade plate Spacers Front corner vertical connector * See Design Notes Subdrain MAXIMUM ALLOWABLE BIN HEIGHTS Highway Loading Design Vehicle - L-60 or CL-625 Height Design B Design C Design D Design E 600 3,758 4,977 5,791 6, ,167 4,977 5,791 6,197 1,200 4,167 4,977 5,791 6,197 1,500 4,167 4,977 5,386 6,197 Live Load between kn/m Off Highway Loading Design Vehicle - L-75 Height Design B Design C Design D Design E 600 3,758 4,977 5,791 6, ,167 4,977 5,386 6,197 1,200 4,167 4,977 5,386 6,197 1,500 4,167 4,572 5,386 5,791 Live Load between kn/m Design Vehicle - L ,977 5,386 5,791 6, ,572 5,386 5,791 6,197 1,200 4,572 4,977 5,791 6,197 1,500 4,572 4,977 5,386 6,197 Live Load between kn/m Design Vehicle - L ,167 4,572 4,977 5, ,758 4,572 4,977 5,386 1,200 3,758 4,167 4,977 5,386 1,500 3,758 4,167 4,572 5,386 Live Load between kn/m Design Vehicle - L ,353 3,758 4,167 4,572 1,200 2,947 3,353 4,167 4,572 1,500 2,947 3,353 4,167 4,572 1,800 2,947 3,353 3,758 4,572 Live Load between kn/m

5 BIN-WALL BRIDGE ABUTMENT Inquiry Data Sheet REAR FACE 3,048 mm TYP BEARING PAD WING WALL DEFLECTION ANGLE (x) VARIES WING WALL LENGTH (ix) REQUIRED BRIDGE DATA TOTAL BRIDGE WEIGHT (i) BRIDGE DECK WIDTH (ii) NO. OF DRIVING LANES (iii) FRONT FACE BRIDGE DECK WIDTH (ii) ABUTMENT LENGTH (viii) PLAN VIEW LIVE LOAD DESIGN VEHICLE (vi) 1,000mm MIN FILL HEIGHT (v) 200mm LIFTS TYP BRIDGE SPAN (iv) (c/c BEARING PAD) BINWALL HEIGHT (vii) 150 DIA PERFORATED SUB-DRAIN GRADE PLATE BEARING ON 200mm GRANULAR CUSHION (LOOSE) 200 ELEVATION VIEW ALLOWABLE BEARING PRESSURE (xi) Required Data Required Data Typical Design Vehicles i Total Bridge Weight vii Abutment (Bin-Wall) Height CL-625 (Highway) ii Bridge Deck Width viii Abutment (Bin-Wall) Length CL-800 (Highway) iii No. of Driving Lanes Wingwall Height (Not Shown) Logging Truck - 75 Ton iv Bridge Span ix Wingwall Length Logging Truck Ton v Height x Wingwall Deflection Angle Logging Truck Ton vi Live Load Design Vehicle xi Allowable Bearing Pressure Other (Specify) Select Project Name 370 Speedvale Ave. W. Suite 3 Guelph ON N1H 7M7 Canada Armtec is a leading Canadian infrastructure and construction materials company combining creative engineered solutions, relevant advice, dedicated people, proven products and a national presence with a local focus on exceptional customer service ARMTEC ARMTEC.COM Armtec / Products and Services / Bridge Materials / Bin-Wall Bridge Abutments / Product Guide