Change a non-standard prestressed concrete section to a standard prestressed This document contains instructions on how to select the prestressed concrete standard section library. Open the concrete description from Description -> Member Shape Description…

Wheel Reaction Factor formerly called Multi-Floor Beam Only Option Floorbeam live loads may be reduced using the Description > General Member Information > (Wheel Reaction Factor) option – as shown below. This option is used when the floorbeams…

Method to Model Post Tensioned Bridges and Defining Draped Strands in LARS Bridge Many bridges utilize a combination of prestressed strands and draped post tensioned tendons. When the load rating models are created, the post tensioned tendons should…

Model a riveted plate girder in LARS Bridge Riveted plated girders are generally made up of angles, a web plate and coverplates. Model a riveted plate girder in LARS Bridge by using the technique listed below: 1) Input the horizontal legs of the top…

Use ADTT for γ LL for legal loads Setting the “ γ LL Strength I & II ” = 0.000 provides Inventory and Operating γ LL values = 1.75 (Inventory) and 1.35 (Operating) for all vehicles regardless of ADTT. It appears that LARS will only modify the γ LL factors…

HL93 in LARS LARS HL-93 vehicle information in the program is not detailed and does not differentiate between TRUCK+LANE, TANDEM+LANE, or 90% TRUCK PAIR + LANE (continuous structures only) in the output. Further, comparison of ratings performed for…

Document Information Document Type: TechNote Product(s): LARS Complex Truss Version(s): All Original Author: Bentley Technical Support Group Use the LFD option in Complex Truss For LFD select the "Report Output" option before selecting…

Key: CS – Client Server Article FAQ – Frequently Asked Questions TB – Technical Bulletin TN – TechNote VID – SELECTsupport Video Bridge Design And Engineering Licensing General LEAP Licensing FAQ Bentley…