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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