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LARS | LEAP | OpenBridge | RM
LARS | LEAP | OpenBridge | RM Wiki LARS Bridge and LARS Main Page
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    • -LARS | LEAP | OpenBridge | RM
      • Bridge Products: Operating System and Hardware Requirements
      • +OpenBridge Designer CONNECT Edition
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      • -LARS Bridge and LARS Main Page
        • +00-LARS BRIDGE GENERAL
        • +01-Structural Steel
        • +02-Reinforced Concrete
        • +03-Prestressed Concrete
        • +04 - Timber
        • +05 - Truss
        • +06 - Complex Truss
        • Working Remotely with LARS Application
      • +LARSBridge V20 Main page
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    • What is New in OpenBridge Designer Connect Edition 10.08.01?
    • Working Remotely with OpenBridge Designer
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     Questions about this article, topic, or product? Click here. 

    LARS Bridge and LARS Main Page

     

    Integrated Bridge Load-Rating Analysis and Modeling


    LARS Bridge and LARS are companion solutions for bridge load-rating calculation, analysis, and analytical modeling for existing and planned bridges. The software interoperates seamlessly to handle the most common bridge types-single or continuous span. BridgeModeler provides a full toolset for easy graphical modeling and analysis of bridge load ratings. LARS is a load-analysis engine that calculates and analyzes load rates.




    Key Features



    LARS Bridge and LARS Features



    • Easy-to-use Windows interface
    • Model definition using graphical tools that provide instant feedback
    • Bridge model components, including cross section components, loads, and stirrup placement, located using a   unique parametric referencing scheme
    • Reduced model-preparation time
    • Supports field-inspection activities
    • Supports design of new bridges
    • Supports management of text and graphics data (digital photographs)
    • Modeling of defects in existing bridges
    • Allowable stress customization for all material types

     

    Member Information

     

    • Member ID
    • Member type
    • Flexural
    • Truss
    • Member function
    • Longitudinal Deck
    • Longitudinal -thru, top
    • Longitudinal - thru, bottom
    • Floor beam - interior
    • Floor beam - cantilevered
    • Floor beam - end
    • Truss (simple span and continuous/cantilever span)
    • Live load distribution factors
    • Max. / min. impact factors for:
    • Inventory
    • Operating
    • Posting
    • Special
    • Copy-member feature
    • Member-symmetry feature

     

    Materials 
     

    • Structural steel
    • Hybrid steel
    • Composite steel and concrete
    • Composite hybrid steel and concrete
    • Prestressed concrete
    • Composite prestressed concrete
    • Reinforced concrete
    • Timber

     

    Structure Configuration

    • Up to 20 spans
    • Simple and continuous span
    • Fixed or pinned ends (left, right, or both)
    • Hinges at any location

     

    Bridge Types

    • Steel (composite and noncomposite)
    • Pre-stressed (composite and non-composite)
    • Reinforced concrete
    • Continuous trusses
    • Cantilever trusses
    • Simple span trusses
    • Timber
    • Up to 20 spans

     

    Member Section Definition

    • BridgeModeler uses unique parametric referencing scheme to model bridge components
    • Steel sections built up with plates or standard sections from library
    • Add multiple cover plates to built up section or standard section
    • Prestressed concrete sections include rectangular and I-sections or standard sections from library
    • Reinforced concrete sections include rectangular, T-beam, or I-beam
    • Built in rebar sizes
    • Timber sections
    • Sections can include defects and deterioration 
    • Shear reinforcement using stirrups or bent up bars
    • Lateral bracing and stiffeners (including longitudinal stiffeners)

     

    Rating Analysis

    • ASD, LFD and LRFD using latest AASHTO specifications.

     

    Rating Positions

    • Default checkpoints
    • Multiple exact checkpoints at any location
    • Separate rating checkpoints for shear, moment, or both

     

    Superimposed Loads

    • Concentrated loads
    • Uniform loads at any location on a member
    • Nonuniform load at any location on a member

     

    Graphic Results Output

    • Moment envelopes for selected member by rating type (Inventory, Operating, or Posting) showing: 
    o Dead load moment
    o Superimposed dead load moment
    o Live load + impact moment
    o Available moment capacity for top positive, top negative, bottom 
    positive, and bottom negative conditions.
    • Shear envelopes for selected member by rating type (Inventory, Operating, or Posting) showing: 
    o Dead load shear
    o Superimposed dead load shear
    o Live load and impact shear
    o Available shear capacity
    o Top positive, top negative, bottom positive, and bottom negative
    conditions
    • Moment and shear influence lines at any checkpoint
    • Hardcopy laser printer plot

     

    LARS Report Output

    • Flexural tabular reports
    • Flexural detail reports at default checkpoints
    • Flexural detail report at all checkpoints (tenth points and user specified locations)
    • Flexural summary

     


    SYSTEM REQUIREMENTS

    Hardware requirements
    • Intel-compatible workstations running Windows

     

    • BridgeKey
    • LARS
    • BridgeModeler
    • LARS Bridge
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    • History
    • More
    • Cancel
    • ZLujan Created by Bentley Colleague ZLujan
    • When: Thu, Jul 17 2014 10:23 AM
    • Dilip Matange [Bentley] Last revision by Bentley Colleague Dilip Matange [Bentley]
    • When: Wed, Feb 24 2021 11:08 AM
    • Revisions: 7
    • Comments: 0
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