Steve Willoughby, Bentley Systems

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LEAP Bridge Overview

• Steve Willoughby, Bentley Systems
• Bridge Product Specialist

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All rolled into one!
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LEAP Bridge Is

• ONE fully-integrated application
• ONE seamless Geometry, Super and Sub Structure
  program
  
• ONE central application for data exchange
• ONE database one or more bridges

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Bridge Analysis Design Software
GEOMATH (Parametric Bridge Geometry Layout)
CONSPAN (LFD LRFD Simple Cont. PS Beam Design
)
CONBOX (LFD LRFD Post-Tensioned CIP Box Girder)
RC-PIER (LFD LRFD Integrated Pier Design)
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GEOMATH

• Versatile geometry application
• Single level crossings to multi-level complex
  interchanges
  
• Multiple horizontal alignments, spirals, vertical
  profiles, and cross-sections
  
• Fully parametric
• Clearances, beam seat deck elevations,
  quantities

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CONSPAN

• Precast/prestressed bridge beams
• Dual AASHTO codes
• Design Rating
• Intuitive user interface
• Libraries Girder shapes, live loads, materials
• Flared girders
• Refined distribution factors

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CONBOX

• Post-tensioned cast-in-place reinforced
  concrete box girder slab bridges
  
• Dual AASHTO codes
• Design Rating
• Various PT loss models
• Stress checks
• Auto-design Flexure and Shear
• P-Jack fc estimates

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RC-PIER

• Highly efficient interface
• 3D graphics
• LFD LRFD
• Piers types
• multi-column and hammerhead
• circular, rectangular
• tapered and non-tapered)
• Drilled-shaft columns
• Integral Pier
• Automatic load generation
• Biaxial moment design
• Strut-and-Tie modeling

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LEAP Bridge Product Objective

• Fully integrated bridge geometry,
  substructure and superstructure solution, under a
  single user console.
  
• ONE Bridge ONE Database
• ONE central application for data exchange with
  other non-LEAP products.

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Single Database

• All project information is saved and maintained
  in a single database.
  
• The results
• Immediate and parametric changes at the whole
  structure level
  
• No redundant data entry amongst integrated
  components.

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LandXML Certified

• LEAP Bridge is LandXML compliant.
• Exchange data with applications like
• GEOPAK
• InRoads
• MX

Share data including Horizontal alignments Ve
rtical profiles
Roadways
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Central Exchange

• LEAP Bridge is also a central command for data
  exchange between AASHTO BridgeWARE database and
  any other LandXML compliant applications

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BRIDGEWare to LEAP Bridge
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GEOPAK To LEAP Bridge
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LEAP Bridge

• Version 7.1
• Automated Bridge Creator (ABC) Wizard
• Enhanced views
• Super substructure reinforcement viewer
• Layout, analyze design integral piers

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LEAP Bridge

• Version 8.0
• Wizard for profile and cross-section input
• Exchange of load information amongst all
  components
  
• Display reinforcement in 2-D views
• Optimization of XML DB

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California Amendments, v3.06.01
Major Items

• General
• Strength II Limit State with P5-P15 trucks
• Fatigue I Limit State
• CONBOX
• Revised resistance factor for tension-controlled
  CIP PT sections
  
• P-Jack at face of columns
• Report on secondary moments
• Option to use reduced moment of inertia for
  columns
  
• Revised skew correction factors

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California Amendments, v3.06.01
Major Items

• General
• Strength II Limit State with P5-P15 trucks
• Fatigue I Limit State
• RC-PIER
• Auto generation of LL, CE and BR forces
• Special computation of Extreme event
• Design for combined shear and torsion
• Reporting of three highest capacity/demand ratios
  for column flexure
  
• Bundled reinforcement option
• Input of reinforcement in flanges of Integral
  Pier bent cap
  

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California Amendments, v3.06.01
Major Items

• CONSPAN
• Maximum debonding limit set to 50 per row, and
  33 total.
  
• Double Tandem Vehicle is automatically selected
  for continuous span analysis.
  
• Fatigue I Limit State (with 1.75 LL factor) for
  compression check of concrete stress.
  
• Fatigue truck added to library and auto selected
  for Fatigue I Limit State.
  

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California Amendments, v3.06.01
Major Items

• CONSPAN
• CALTRANS permit vehicles P5 through P15 auto
  selected for analysis under Strength II Limit
  State.
  
• Reduced impact for permit trucks (Strength II) of
  0.25 rather than 0.33.
  
• CALTRANS specific beam cross sections added to
  library (I-beams, U-beams, Rect beams with
  circular voids).
  
• Effective flange width as per CALTRANS criteria,
  similar to LRFD 2008 changes.
  
• New tension check/limit under Service III for
  PSDL combination.
  

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3D Views
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2D Superstructure Views
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2D Substructure Views
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ABC Wizard
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ABC Wizard
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ABC Wizard
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ABC Wizard Alignment Definition
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Multiple Bridges
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3D Superstructure Reinforcement
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3D Superstructure Reinforcement
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3D Substructure Reinforcement
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3D Substructure Reinforcement
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Flared Girder Support
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Hammer Head Pier
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Enhanced 3D Graphics Engine
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Live Demo covering the following scenarios
Using standalone components. Using ABC Wizard
to create a bridge model. Using existing data fil
es to build a bridge model. Importing XML from ot
her applications into LEAP Bridge.
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Demonstration
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Questions?
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LEAP Bridge Overview