LARS Bridge Live Load Distribution Factor Calculation
What equations/tables does LARS Bridge Connect Edition use to calculate the LLDF for a CSC beam? The LLDF generated by the program does not appear to be consistent with hand calculations utilizing the formulas/methods in the tables in section 4.6.2.2…
LARSBridge V20
Introduction
Welcome to LARS® Bridge, the latest bridge geometry, superstructure analysis, and rating software solution from Bentley.
About LARSBridge CONNECT Edition
LARSBridge is a comprehensive software program that is used to model, analyze…
What's New in LARS Bridge CONNECT Edition V20 Release 5 (V20.02.02.21)?
LARS Bridge CONNECT Edition x64 (SES) V20.02.02.21 is now available on Bentley Software Downloads. In this maintenance release, following enhancements and issues have been addressed.
Enhancements
Support direct import and export of bridge data…
LARS | LEAP | OpenBridge | OpenTunnel | RM
This is the Main Page of a series of Wiki articles on the Be Communities page for OpenBridge and OpenTunnel engineering software solutions from Bentley Systems Inc .
OBD - OpenBridge Designer OTD - OpenTunnel Designer
OpenBridge Designer includes…
Assigning Service Request for OpenBridge Products
To create a new Service Request for OpenBridge Products the users should follow the instructions at the link below and then enter the Product as OpenBridge Modeler or OpenBridge Designer .
How to log Case?
Service Requests…
What's New in LARS Bridge CONNECT Edition V20 Release 4 (V20.02.01.121)?
LARS Bridge CONNECT Edition x64 (SES) V20.02.01.121 is now available for download on Bentley Software Downloads. This is a minor release, mainly focused on completing the API allowing direct import and export of bridge data between LARS Bridge and AASHTOWare…
What's New in LARS Bridge CONNECT Edition V20 Release 3 (20.02.00.101)?
LARS Bridge CONNECT Edition x64 (SES) V20.02.00.101 is now available for download on Bentley Software Downloads. In this release, the feature to directly import and export bridge models between LARS Bridge and AASHTOWare BrR v7 is offered. Following bridge…
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LARS Flexural Detailed Section Defect Procedures
Enter defects into the flexural detailed Section:
Note the following:
Defects can only be added to sections defined using steel plates. Standard sections will need to be converted to an equivalent steel section before adding defects or holes.
…
LARS: When Running LRFD Ratings, LDF ratings are sometimes low
Issue is with LFR ratings when running LRFR rating. LRFR ratings are fine but LFR are low
Recent maintenance on LARS (v6.00.01.07) may have resolved this issue. That is, the issue where when LRFR ratings were requested the LFR ratings appeared low.…
LARS: Tips for modeling bridges to make revisions easier
The best way to accomplish this is to use the “Independent” element referencing options in the Member Shape Description command. These options are at the end of the Locate By list: and are called:
Independent, Left End Ref.
Independent, Right End…
LARS: Redundant vehicles in live load list
Certain standard vehicles contained within LARS (H15, H20, HS15, HS20, and HS25) are listed multiple times within the live load list. It does not matter which vehicle of a duplicate vehicle is selected from the list; however, if desired this can be resolved…
LARS: Modeling of bent-up bars
in LARS, Either stirrups or bent-up bars can be defined, but only one at a time. To account for bent-up bars when stirrups are present, adjust the As of the stirrups to include As of bent-up bars. Need to use the area of steel option.
LARS: Default floorbeam spacing
To compute the the liveload reaction to a floorbeam, the floorbeam spacing must be input into LARS. If the floor beam spacing is not input, a default spacing value of 1.0 ft is used to prevent a divide by 0 and subsequent program crash.
LARS: Approach for calculating pre-stressed live load capacity for continuous members at interior supports
Approach for calculating pre-stressed live load capacity for continuous members at interior supports
For ASD/LFD rating, LARS assumes capacities for negative moment regions of continuous prestressed beams to be based on reinforced concrete sections…
LARS What is the live load distribution factor based on?
Document Information
Document Type: FAQ
Product(s): LARS Bridge/LARS
Version(s): All
Original Author: Bentley Technical Support Group
What is the live load distribution factor based on?
For LRFD:
flexural members – computed based on fractions…
LARS Manually Editing Reports
Document Information
Document Type: FAQ
Product(s): LARS Bridge/LARS
Version(s): All
Original Author: Bentley Technical Support Group
Is there a way to print just one or a few pages from the Flexural Member Report?
The raw formatted LARS…
00-LARS BRIDGE GENERAL
Document Information
Document Type: FAQ
Product(s): LARS Bridge/LARS
Version(s): All
Original Author: Bentley Technical Support Group
Release Announcement: LARS Bridge CONNECT Edition X 64 (SES) V20.01.00.05
LARS Bridge CONNECT Edition x64 V20.01.00.05 is now available for download on Bentley Software Downloads.
LARS Bridge CONNECT Edition V20 is a modernized version of LARS using a completely new format and new capabilities. Please see the attached release…
Release Announcement: LARS Bridge CONNECT Edition X 64 (SES) V20.00.00.32
LARS Bridge CONNECT Edition x64 V20.00.00.32 is now available for download on Bentley Software Downloads.
LARS Bridge CONNECT Edition V20 is a modernized version of LARS using a completely new format and new capabilities. Please see the attached release…
Working Remotely with LARS Application
Product(s):
LARS
Version(s):
CONNECT Edition
Environment:
Any
Area:
Licensing, Installation
In these challenging times when COVID-19 is imposing significant disruptions to day to day activities…
Release Announcement: LARS Bridge CONNECT Edition V10 Update 9
LARS Bridge CONNECT Edition 10.09.00.03 is now available for download on SELECT. Please see the attached release note for changes to LARS Bridge in this update.