Bridge Structural Rehabilitation Using FRP Laminates
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1 Bridge Structural Rehabilitation Using FRP Laminates South Santiam River Quartzville Road, Linn County Linn County Road Department 2011 Cooperative Partnerships Making Linn County a Better Place to Live
2 Bridge Structural Rehabilitation Using FRP Laminates South Santiam River, Quartzville Road, Linn County Projects may be initiated with thoughts, but will only be developed and completed with a Team Linn County Engineering Daineal Malone, Project Manager Wayne Mink, PE, Civil Engineer Chuck Knoll, PE, County Engineer David Evans and Associates Jim Bosket, PE, Bridge Inspection, Design Guido Portier, PE, Technical Support Kelly Burnell, Design, Construction Inspection Joel Howie, PE, Project Manager Mike Reynolds, PE, Contractor - Pioneer Waterproofing Co, Inc. Neil Antonini, Project Manager Kelly Smith, Contractor Superintendent Linn County Bridge Maintenance Operations Martin Harding, Supervisor
3 Linn County Road Department Project Manager, Daineal (left side) with Engineering Intern
4 Quartzville Road Bridge October 2008
5 Quartzville Road Bridge October 2008 Looking to the West from the Bridge Great view with visits
6 BRIDGE INFORMATION BRIDGE CONSTRUCTED IN USCOE BRIDGE CONSTRUCTION: ft SPANS SUPPORTED BY BENTS WITH CROSS BEAM CONFIGURATION WITH TWO PIERS CONCRETE CROSS BEAMS WERE NOT ADEQUATELY REINFORCED WITH STEEL Actual Load Rating Log Truck Configuration 34.4 tons with 1.4 RF for Type 3-3 Train and Legal Lane UNDER DESIGNED CROSS BEAMS CAUSED: Structural Shear Type Cracking of Concrete Girder from Shear Stress Cracking of Reinforced Concrete Diaphragms from Bending Moment to Cross Beams.
7 First Step Thorough Inspection of the Bridge
8 Mid- Span Diaphragms were OK
9 Diaphragms at Bents had concrete failure at corners and Cross Beams had Shear Cracks
10 Diaphragms at Bents had concrete failure at corners and Cross Beams had Shear Cracks Inspection Notes
11 ENGINEERING DESIGN Repair Diaphragms and Strengthen (Reinforce) Crossbeams
12 Work required on three interior bents
13 Design Detail
14 Concrete Repair Detail
15 Fiber Reinforced Polymer (FRP) Design
16 Design Detail
17 Concrete Repair at Exposed Rebar
18 Selection of materials of Construction from the Qualified Products List
19 Preparation of Test Strip as to Tensile Strength
20 Report on Test Strip as to Tensile Strength
21 Access & Work Platform to Cross Beam to Construct Repairs
22 Containment of Work Area
23 Preparation of Concrete Surface and Repair of Diaphragms
24 Concrete Repair Preparation
25 Concrete Repair Preparation
26 Inspection of Reinforced Concrete Beam
27 Concrete Repair Preparation Remove Spalled Concrete and Clean Surface
28 Concrete Repair Preparation Remove Spaled Concrete and Clean Surface
29 Concrete Repair Preparation Placement of Perimeter Gasket
30 Concrete Repair Preparation Placement of Forms
31 Concrete Repair Preparation Mixing of Concrete Cement
32 Pumping for Concrete Repair of Diaphragm Hand Pump
33 Pumping for Concrete Repair
34 Pumping for Concrete Repair
35 Removal of Forms
36 Bridge Beam Diaphragm - After Removal of Form
37 Bridge Beam Diaphragm - After Removal of Form
38 Application of FRP to Concrete Beams
39 Injection of Epoxy into Cracks Sorry No Photo of This
40 Materials of Construction Primer and MBRACE PUTTY
41 Preparation of Surface with Cement Mix
42 Mixing of Saturant
43 Application of Fiber Reinforced Laminate Across Bottom of Beam
44 Application of Fiber Reinforced Laminate Around Bottom and Sides of Beam
45 Application of FRP
46 Placing Final Coat over FRP
47 Quality Control Work
48 Quality Control Work
49 Bond Testing of FRP to Concrete Surface Preparation/Isolation of Test Area
50 Placement of Test Device to FRP Surface
51 Testing for Tensile Strength
52 Bond Testing Attachment Devices after Bond Test Note layer Blue Layer of FRP between Concrete and Device
53 Completed Repair of Diaphrams and Cross Beam before Painting
54 Repairs of Diaphram and Outer Cap
55 Paint Coating over FRP surface
56 Completed Work on Middle Pier
57 View of Completed Repair Work
58 Completed Engineers Load Rating Strength of Cross Beam and Bridge Increased by 25% Contract Cost $160,000 Engineering Design and Inspection $60,000
59 THANK YOU Chuck Knoll, PE Linn County Engineer
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