bridge standards & practices bridge design & drafting manual (bddm) bridge drawings upcoming...
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Bridge Standards & PracticesBridge Standards & Practices
• Bridge Design & Drafting Manual (BDDM)
• Bridge Drawings
• Upcoming Bridge Training
Overview:Overview:
• Links to ODOT Bridge Information• BDDM – Recent Key Updates• Proposing Changes to the Manual• Deviations from BDDM• Bridge Drawings – Start to Finish• Bridge Section Training Updates
ODOT Bridge On-Line LinksODOT Bridge On-Line Links
• Bridge Engineering Home Pagehttp://www.oregon.gov/ODOT/HWY/BRIDGE
• Bridge Design & Drafting Manual (BDDM)
• Bridge Standard Drawings
Use “Br. Standards & Manuals” Link
Standard Drawings also via Roadway Engineering Home Page
Bridge Engineering Home Bridge Engineering Home PagePage
Br. Standards & Manuals PageBr. Standards & Manuals Page
ODOT Bridge Example ODOT Bridge Example DrawingsDrawings• ftp://ftp.odot.state.or.us/Bridge/BDDM
In the Example_Drawings folder
Also:
Cell_LibraryBridge_Example_DesignsBDDM_Figures
BDDM Nov. 2005 Selected UpdatesBDDM Nov. 2005 Selected Updates
• 1.1.2.2 Scour Analysis• 1.1.7.2(2) Pedestrian Structures – Live
Load• 1.1.7.4 LRFD Ductility, Redundancy and
Operational Importance Factors• 1.1.7.5 Sidewalk Loading – New section • 1.1.8.4 End Bents – Concrete facing on MSE
walls• 1.1.14.2(1) Stay-in-Place Forms• 1.2 Steel – Various updates• 1.2.1.9 Deck Pouring Sequence
To Propose Changes to BDDM:To Propose Changes to BDDM:
• Go to Introduction, “Revising The Manual”, page INTRO-5
• Follow Step-by-Step procedure
• Not needed for bringing routine errors to our attention (typographical, etc.)
BDDM “Deviation” ProcessBDDM “Deviation” Process
• When you want to do something differently than BDDM policy specifies
• Send E-mail request to Bridge Standards & Practices Committee stating “what” and “why”
• Committee will review and respond
““Deviation” vs. “Exception”Deviation” vs. “Exception”
• Roadway Engineering Design “Exception” process is a more formal request to use geometry, etc. that doesn’t meet operational standards
Bridge Standards & Practices Bridge Standards & Practices CommitteeCommittee
• Bruce Johnson, State Bridge Engineer• Kevin Davidson, Br. Standards & Practices
Engr.• Gary Bowling, Br. Operations Managing
Engineer
• Craig Shike, Concrete• Hormoz Seradj, Steel• Holly Winston, Seismic & Bridge Rails• Jan Six, Foundations
Create CAD Files & DrawingsCreate CAD Files & Drawings
Three Types of CAD Files• Layout File• Sub-structure File• Super-structure File
Layout File Sub-structure File Super-structure File
Drawings are ReviewedDrawings are Reviewed
• Engineer of record reviews drawings• Final Corrections have been made to
CAD Files.
Mylars are CreatedMylars are Created
• “D” size mylars are printed• All parties have signed mylars.• 11” x 17” paper prints are made of
signed mylars.
Plans are sent inPlans are sent in
• “D” size mylars and 11” x 17” paper copies of signed mylars are sent to office of Pre-Letting in Salem Headquarters.
• Office of pre-Letting sends mylars to ODOT Reprographics for printing and scanning.
Contract Documents CreatedContract Documents Created
• ODOT Reprographics sends requested material back to Office of Pre-Letting and sends Bridge mylars and scans to Bridge Engineering Section Headquarters, front office.
• Bridge front office returns signed mylars to original design office.
• Loads scans into the Bridge Data System (BDS).
Project is ConstructedProject is Constructed
As-Constructed DrawingsAs-Constructed Drawings
• Project Manager submits as-constructed comments to design office.
• Engineer of record reviews comments• Drafter places as-constructed comments on
mylar by hand.
Distribution of Distribution of As-Constructed DrawingsAs-Constructed Drawings
• A set of drawings with as-constructed comments are created and distributed to:
Bridge Operations EngineerRegion Bridge Inspector
• Original red line as-constructed drawings are sent back to Project Managers office.
At Completion of ProjectAt Completion of Project
At completion of a project, what information is needed by Bridge Engineering Section Headquarters in Salem.
• Electronic CAD files in Microstation Version 8 format.
• “D” size signed mylars• Calculation books• Project Files• Load Rating of as-constructed bridge
per Load Rating Guidelines• Cost Data
Bridge Mylar FlowchartBridge Mylar Flowchart
Upcoming Upcoming ODOT Bridge Section TrainingODOT Bridge Section Training
• Beginning Seismic Design: March, April, June & July, One day a month for 8 hours each month, total of 32 hrs.
• High Performance Steel and Accelerated Bridge Construction: March 15 & 16
• What’s New in Bridge Design: May 17 & 18th
• LRFD Foundation design: Tentative April or May 2006
Questions?Questions?