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Automatic Updating of Structural Models Using Inspection Report Data

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Automatic Updating of Structural Models Using Inspection Report Data University of New Hampshire University of New Hampshire Scholars' Repository Master's Theses and Capstones Student Scholarship Winter 2014 Automatic Updating Of Structural Models Using Inspection Report Data Timothy Foy University of New Hampshire, Durham Follow this and additional works at: https://scholars.unh.edu/thesis Recommended Citation Foy, Timothy, "Automatic Updating Of Structural Models Using Inspection Report Data" (2014). Master's Theses and Capstones. 986. https://scholars.unh.edu/thesis/986 This Thesis is brought to you for free and open access by the Student Scholarship at University of New Hampshire Scholars' Repository. It has been accepted for inclusion in Master's Theses and Capstones by an authorized administrator of University of New Hampshire Scholars' Repository. For more information, please contact [email protected]. AUTOMATIC UPDATING OF STRUCTURAL MODELS USING INSPECTION REPORT DATA BY TIMOTHY FOY MS, College of Engineering and Physical Sciences, 2014 THESIS Submitted to the University of New Hampshire in Partial Fulfillment of the Requirements for the Degree of Master of Science in Civil Engineering December 2014 ii This thesis has been examined and approved in partial fulfillment of the requirements for the degree of Master of Science in Civil Engineering by: Thesis/Dissertation Director, Dr. Erin Santini-Bell, Associate Proffessor, Civil Engineering Dr. Raymond A. Cook, Associate Professor, Civil Engineering Dr. Ricardo A. Medina, Associate Professor, Civil Engineering On November 4, 2014 Original approval signatures are on file with the University of New Hampshire Graduate School. iii Chapter 1: Contents List of Figures .................................................................................................................................. vi List of Tables ................................................................................................................................. viii List of Equations ............................................................................................................................ viii ABSTRACT ........................................................................................................................................ ix Chapter 1: Introduction .................................................................................................................. 1 1.1 – Social Need ......................................................................................................................... 1 1.2 – Major Contribution of this Research ................................................................................. 2 1.3 – Bridge Inspection ............................................................................................................... 3 1.3.1 – Silver Bridge ................................................................................................................ 4 1.3.2 – National Bridge Inspection Standards ...................................................................... 10 1.4 – Structural Health Monitoring ........................................................................................... 11 1.5 – Model Updating ............................................................................................................... 12 1.6 – Case Studies ..................................................................................................................... 13 1.6.1 Commodore Barry Memorial Bridge ........................................................................... 13 1.6.2 Powder Mill Bridge ....................................................................................................... 15 1.6.3 Rollins Road Bridge ...................................................................................................... 16 1.6.4 Tobin Memorial Bridge ................................................................................................ 19 1.7 – Monitoring Model Creation ............................................................................................. 20 1.7.1 – Finite Element Modeling ........................................................................................... 21 Chapter 2: Model Updating .......................................................................................................... 23 2.1 – Inspection Reporting ........................................................................................................ 23 2.2 – Model Updating Procedures ............................................................................................ 26 2.2.1 – Visual Basic for Applications ..................................................................................... 26 2.2.2 – Model Updating Protocols ........................................................................................ 27 2.2.3 Radius of Gyration ....................................................................................................... 30 2.3 –Structural Model Verification ........................................................................................... 31 2.4 – Recommended Applications ............................................................................................ 33 Chapter 3: Introduction to the Maurice J Tobin Memorial Bridge ............................................... 35 3.1 – Instrumentation of the Little Mystic Span ....................................................................... 37 3.1.1 Instrumentation Plan ................................................................................................... 37 3.1.2 Data Collection ............................................................................................................. 39 3.2 Installation .......................................................................................................................... 39 iv 3.2.1 Preparation Procedure................................................................................................. 40 3.3 Load Testing ........................................................................................................................ 40 Chapter 4: Case Study ................................................................................................................... 42 4.1 – Testing Plan ...................................................................................................................... 42 4.2 – Truck Specifications ......................................................................................................... 42 4.3 – Tobin Bridge Finite Element Model ................................................................................. 43 4.4 – Truck Load Distribution .................................................................................................... 47 4.5 – Results .............................................................................................................................. 48 4.5.1 – Chord Members ........................................................................................................ 50 4.5.2 – Diagonals ................................................................................................................... 57 4.5.3 – Floor Beams .............................................................................................................. 63 4.5.4 – Verticals ..................................................................................................................... 69 4.5.5 – Changes to Section Properties .................................................................................. 79 Chapter 5: Conclusions/Future Work ........................................................................................... 81 5.1 – Conclusions ...................................................................................................................... 81 5.2 – Future Work ..................................................................................................................... 82 5.2.1 Improved Joint Analysis ............................................................................................... 82 5.2.1 Improved Acceptance Criteria ..................................................................................... 83 5.3 – The Future of Bridge Condition Assessment ................................................................... 83 5.4 – The Future of Bridge Modeling ........................................................................................ 85 5.5 – The Future of Bridge Management .................................................................................. 87 References .................................................................................................................................... 89 Appendices .................................................................................................................................... 93 Appendix 1 User’s Guide ............................................................................................................... 94 User’s Guide Table of Contents ................................................................................................ 94 A1.1 – Introduction ................................................................................................................... 94 A1.2 - Model Setup ................................................................................................................... 94 A1.3 - Spreadsheet Setup ........................................................................................................
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