Guidelines to Improve the Quality of Element-Level Bridge Inspection Data (2019) / Chapter Skim
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D-1 APPENDIX D Field Exercise Plan
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D-2 Contents D.1 FIELD TRIAL OVERVIEW .....................................................................................................
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D-3 List of Figures Figure D-1. Location of test bridges and the S-BRITE Center at Purdue University, Indiana (Google Earth)
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D-4 List of Tables Table D-1. NBI data test bridges I1 and I2.
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D-5 D.1 Field Trial Overview This portion of the report describes the test bridges and inspection protocols for the field exercises described in the research. These included test bridges in Indiana and Michigan to be used as field test sites for evaluating the effect of using newly developed guidelines (i.e., the visual guide)
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D-6 The Michigan inspection exercise was completed on two days with two groups of five inspectors on each day, due to unavailability of all inspectors on the same day. The inspectors were qualified bridge inspectors currently conducting routine inspection for highway bridges using element-level data collection.
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D-7 6. The bridges should be of ordinary size.
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D-8 Two twin bridges with steel superstructures were chosen for the field exercises in Indiana (ID # I65-17905487 BNBL and BSBL, north and south bound)
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D-9 Figure D-2. Photograph of test bridges I1 (ID #I65-179-05487 BNBL)
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D-10 without section loss. The amount of section loss is not quantified in the current defect description for defect element 1000 - Corrosion.
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D-11 Table D-2. Element listing for bridge I1.
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D-12 Figure D-3. Reinforced Concrete Bridge Deck Delamination/Spall/Patched Area.
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D-13 Figure D-5. Reinforced Concrete Approach Slab Delamination/Spall/Patched Area and Cracking.
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D-14 Figure D-7. Example of fascia girder coating on bridge I1.
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D-15 about 99% of its surface area recorded in CS 2, as compared with bridge I1 which has 99% of its area in CS 1. Table D-3.
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D-16 Figure D-9. Reinforced Concrete Bridge Deck Delamination/Spall/Patched Area.
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D-17 Figure D-11. Reinforced Concrete Approach Slab Delamination/Spall/Patched Area and cracking.
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D-18 Figure D-13. Movable Bearing damaged by corrosion.
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D-19 Table D-4. Steel open girder/beam elements in bridge I1 and I2.
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D-20 These damaged areas provided a means of evaluating the ability of inspectors to accurately describe the damage areas. Figure D-14 shows diagrams of the damage in bridges I1 and I2, to illustrate the difference in the amount of damage recorded on the surface of the wearing surface.
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D-21 Table D-6. Substructure elements of bridges I1 and I2.
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D-22 D.4.1 Protocol for testing D.4.1.1 Introduction and Testing During this task, the study participants will be introduced to the field inspection exercise and provided a short refresher on use of the guideline. This task will refresh information previously provided in a webinar.
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D-23 The color vision test to be completed by participants is a Ishihara test, which is a color perception test for red-green color deficiencies. Again, this test will be familiar to participants, and is a simple method of identifying if inspectors have any sort or red-green color vision deficiency.
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D-24 the accuracy requirements for element-level bridge inspection, and identifying suitable procedures for element-level data collection. Additionally, this task will study the effect of changing the units of measure for elements, for example, element 515, Steel Protective Coating.
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D-25 will be completed (S-BRITE 2 and S-BRITE 3) , and then the appliques will be rearranged with different total quantities for two other tasks (S-BRITE 4 and S-BRITE 5)
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D-26 Table D-8. Summary of data and methods for Task E
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D-27 D Figure D-18. Example of a page test for estimating area based on percentage showing 5% (top)
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D-28 Outcomes: The completion of this task provided data on the accuracy of an area estimate based on the percentage of area, with a comparison between using a visual guide and not using a visual guide. The expected outcome was an improvement in the accuracy of the estimate using the visual guide.
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D-29 Data for the comparison of the efficiency of different estimating methods (estimating % as compared with tallying individual lengths)
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D-30 Figure D-20. Steel truss to be used for linear length estimation.
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D-31 The superstructure members had similar amounts of damage that is common for prestressed girders, namely cracking and spalling near the supports. It was expected that the assessment of this element would provide a measure of the variation in quantities and defect assignment for elements measured in ft.
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D-32 Figure D-22. Photograph of elevation view of bridge M2.
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D-33 Figure D-24. Locations of test bridges in Michigan (Google Earth)
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D-34 Table D-11. Elements assessed for bridges M1 and M2.
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D-35 Figure D-26. Reinforced concrete columns and pier cap in bridge M1.
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D-36 Task M.1 Outcome Each bridge had a similar level of damage in the prestressed elements and the bridges are of the same design with the same access for inspection. Therefore, the inspection results provided data on the variation in inspection results of five inspections that used the new visual guide and five inspections that did not use the visual guide.
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D-37 Task M.4 Assessment of columns using units of ft During this task, all participants were asked to assess the columns of the bridge using the unit of ft rather than the conventional unit of ea. A key element of this task was to gather data on the accuracy of the data collected using ft as compared with the actual condition of the columns, and to measure the time required to make the assessment.
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D-38 Table D-12. NBI data for test bridge M3 Code Value Code Value [27]
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D-39 Table D-13. Elements and defects for bridge M3 Figure D-28 shows the bridge deck with noticeable spalling and patching.
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D-40 Figure D-29. Damage in span 5 of bridge M3.
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D-41 Figure D-30. Slope at east end of bridge M3 (MDOT)
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D-42 Table D-15. Bridge M4 element condition state rating.
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D-43 Figure D-32. Diagram showing damage in deck M4, spans 1-3.
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D-44 Table D-16. Element listing for inspection of bridge M1 and M2.
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D-45 D.6 Schedule This section of the report describes the schedule for the field exercises in each state. As described previously, the duration of the testing for each inspector was limited to one day to facilitate scheduling.
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D-46 Appendix A: Pre-Test and Post-Test Questionnaire This appendix includes the pre-test and post-test questionnaires that were given to the inspectors before and after the field exercises.
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D-47 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Pre-test questionnaire What is the highest education level that you have completed?
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D-48 1. When inspecting a deck, which of the following methods do you use to assess the area of damage in the deck (circle)
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D-49 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Post-test questionnaire Have you inspected this bridge before? Were these bridges similar to bridges you commonly inspect?
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D-50 Please rate the ease of the use of the visual guide. Easy Easiest 1 2 3 4 5 Based on your experience during the field exercise, do you feel that the guideline would assist you in rating bridge element in the field?
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D-51 Appendix B: Inspection Forms for Field Exercises and S-BRITE Tasks This appendix includes the inspection forms that were used for the field exercises. A separate form was used for each bridge.
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Inspection Form Bridge I1 (BNBL) Task 1 D-52 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge I1 (BNBL)
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Inspection Form Bridge I1 (BNBL) Task 1 D-53 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge I1 (BNBL) Task 1 D-54 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge I2 (BSBL) Task 1 D-55 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge I2 (BSBL)
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Inspection Form Bridge I2 (BSBL) Task 1 D-56 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge I2 (BSBL) Task 1 D-57 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge I2 (BSBL) Task 2 D-58 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge I2 (BSBL)
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Inspection Form Bridge M1 (Part A) D-59 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M1 (3804)
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Inspection Form Bridge M1 (Part A) D-60 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M1 (Part A) D-61 Please rate the following NBIS elements: Item Number/Name N -N ot A pplicable 9-Excellent 8-V ery good 7 - G ood 6-Satisfactory 5-Fair 4-Poor 3-Serious 2-C ritical 1-Im m inent Failure 0 - Failed 59Superstructure 60- Substructure
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Inspection Form Bridge M1 (Part B) D-62 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M1 (3804)
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Inspection Form Bridge M2 (Part A) D-63 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M2 (3805)
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Inspection Form Bridge M2 (Part A) D-64 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M2 (Part A) D-65 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M2 (Part B) D-66 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M2 (3805)
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Inspection Form Bridge M3 D-67 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M3 (2253) Inspection Form Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M3 D-68 Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M4 D-69 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Bridge M4 (2254) Inspection Form Element /Defect # Element/Defect Name Tot.
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Inspection Form Bridge M4 D-70 Element /Defect # Element/Defect Name Tot.
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Visual Estimation Form Task SBRITE 1 D-71 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE1 Visual Estimation Form 1. Area covered by shapes (%)
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Visual Estimation Form Task SBRITE2 D-72 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE2 Visual Estimation Form Side Damaged Area (%) 1 2 3 4 Start Time End Time Notes: Please estimate the percentage of damaged area for each of the four sides of the plate girder and record your estimates in the table below.
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Visual Estimation Form Task SBRITE3 D-73 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE3 Visual Estimation Form Side Damaged Area (sq ft) 1 2 3 4 Start Time End Time Notes: Please estimate the sq ft of damaged area for each of the four sides of the plate girder by tallying individual areas and record your estimates in the table below.
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Visual Estimation Form Task SBRITE4 D-74 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE4 Visual Estimation Form Side Damage (ft) 1 2 3 4 Start Time End Time Notes: Please estimate the linear ft of damage for each of the four sides of the plate girder and record your estimates in the table below.
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Visual Estimation Form Task SBRITE5 D-75 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE5 Visual Estimation Form Side Damage (ft) 1 2 3 4 Start Time End Time Notes: Please estimate the linear ft of damage for each of the four sides of the plate girder by tallying individual damage and record your estimates in the table below.
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Visual Estimation Form Task SBRITE6 D-76 NCHRP 12-104 "Guidelines to Improve the Quality of Element-Level Bridge Inspection Data" Task S-BRITE6 Element /Defect # Element/Defect Name Tot.
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Visual Estimation Form Task SBRITE6 D-77 Element /Defect # Element/Defect Name Tot.
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