FHWA Bridge Program Initiatives - Bridge Design and Analysis
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1 FHWA Bridge Program Initiatives - Bridge Design and Analysis 2015 RADBUG Thomas Saad, P.E. FHWA, Resource Center (708) Thomas.saad@dot.gov
2 Regulation Update National Performance Management Measures (PM2) National Bridge Inspection Standards (NBIS) National Tunnel Inspection Standards (NTIS)
3 NBIS NPRM being finalized for Secretary s approval Fall 2015 (tentative) Specifications for the National Bridge Inventory (SNBI)
4 NTIS Final Rule was published in July, 2015 Information webinars conducted Specifications for the National Tunnel Inventory (SNTI) Tunnel Operations, Maintenance, Inspection, and Evaluation Manual (TOMIE) NHI Tunnel Safety Inspection Training
5 Tunnels Port of Miami Recently completed East End Crossing Tunnel Louisville Midtown Tunnel Norfolk/Portsmouth Alaskan Way Viaduct Tunnel Seattle I-70 Twin Tunnels Idaho Springs, CO Capitol Crossing Washington, DC Chesapeake Bay Bridge Tunnel, Eastern Shore, VA I-90 Tunnels Seattle / Bellevue
6 NBI Oversight Program: 23 Metrics
7 NBI Oversight Program: 23 Metrics
8 OIG and PMIT Findings OIG Bridge Safety Phase II February 18, 2015 PMIT Load Posting Enforcement November 6, 2014 PMIT Oversight of the National Bridge Inspection Program February 24, 2015
9 Steel Bridge Technical Activities NHI Engineering for Stability in Bridge Construction (3½ day course now available) LRFD Superstructure Design Course update (complete) Bridge Information Modeling (BrIM) Standards (ongoing) Cooperative Agreement with Lehigh (ongoing) Manual for Refined Analysis of Bridges Tubular Member Design for Bridges Reliability in Special Bridge Systems Strengthening of Bridge Members Orthotropic deck testing
10 Steel Bridge Technical Activities Steel Bridge Design Handbook update (12/15) NHI Fatigue and Fracture Course (late 2016) Design Specs for Non-composite Box Sections (late 2017)
11 Concrete Bridge Technical Activities Post-Tensioning Guidance & Training PT Installation and Grouting Manual (E-doc on HIBS) PT Installation and Grouting WBT (Available through NHI) PT Bridge Inspection Module NHI Bridge Safety Inspection Refresher Course (Available - NHI) PT Box Girder Design Manual (Final Draft under Review) Advanced PT Design Guidance (electrically isolated PT, replaceable grouted external PT) Designing PT Systems to Accommodate NDE Literature search complete & electrically isolated PT testing just starting
12 Concrete Bridge Technical Activities Advanced Precast Element Design Guidance & Training Awarded to AASHTO w/ subcontract to PCI as primary developer (August 2014) PCC Girder Design WBT (8 hrs) Full-Depth Precast Deck Panel WBT (4 hrs) PCC Girder Stability WBT (4 hrs) Bridge Geometry Guidance Layout, Fabrication and Erection Considerations Curved U-Beam Design Guidance & Criteria
13 FHWA/NHI Bridge Design and Analysis Courses ( NHI Course : LRFD for Bridge Superstructures (4 day) NHI Course : LRFR for Highway Bridges (4 day) NHI Course : LRFD Seismic Analysis and Design of Bridges (4 ½ day) NHI Course : LRFD Seismic Analysis and Design of Tunnels, Walls and other Geotechnical Features (4 day) NHI Course : LRFD Design and Analysis of Skewed and Horizontally Curved Steel Bridges (2 ½ or 4 ½ days)
14 FHWA Resource Center Seismic Design and Retrofit Seminar Introduction to AASHTO LRFD Seismic Design Specifications, Guide Specifications, and FHWA Seismic Retrofit Manual for Low to Moderate Seismic Regions (1 ½ days) Contact Tom Saad, FHWA, to schedule this seminar
15 2007 specifications (1988 maps) 500 year return period Zone 1-SDC A Zone 2-SDC B Zone 3-SDC C Zone 4-SDC D
16 LRFD & Guide Specs (1000 year return period) Zone 1-SDC A Zone 2-SDC B Zone 3-SDC C Zone 4-SDC D SITE CLASS E
17 Recent Seismic Activity
18 Future Seismic Activity
19 FHWA LRFR Implementation Webinar Series 19 To further support State s efforts in meeting the NBIS s requirements in load rating and FHWA's initiative of implementing the LRFR method, a series of webinars have been planned to provide continued awareness for local, regional, and State transportation agencies. No. 13: Bridge Load Rating for Overweight Load Permitting (10/20/2014) No. 14: Bridge Load Rating for Overweight Load Permitting - State's Practice (1) (12/18/2014) No. 15: Bridge Load Rating for Overweight Load Permitting - State's Practice (2) (03/25/2015) No. 16: Bridge Load Rating for Overweight Load Permitting - State's Practice (3) (05/19/2015) Recordings are available at
20 Southeast States Load Rating Program Peer Exchange Sept. 1-3, 2015, Atlanta, GA AL, FL, GA, KY, LA, MS, NC, SC, and TN Discussion Topic Priorities Staffing needs Deterioration in load rating analysis Types of posting signs Re-rating triggers Rating of concrete box culverts Automation for rating and permitting Software requirements/3d needs Responsibility for local bridge ratings and postings LRFR vs. LFR Metric 13 and 14
21 SHRP 2 Building bridges more quickly Innovative bridge designs for rapid renewal Building on the proper foundation GeoTechTools.org Using Specifications that deliver the right project Performance specifications for rapid renewal Designing for longer-lasting bridges Service life design for bridges Generating new LRFD Specifications Inspecting concrete bridge decks with greater accuracy New portable technologies to map and inspect tunnel linings
22 LTBPP The Bridge Portal Contact your State s LTBP Coordinator to evaluate the Bridge Portal Data and analysis infrastructure to manage, organize and utilize bridge data Integrate LTBP data with other data such as NBI, weather and traffic Provides a single source of data for bridge researchers, owners and other stakeholders
23 QUESTIONS
24 23 Metrics
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