LARSA 4D Steel Bridge Module Tutorial

The Steel Bridge Module is comprised of three main tasks. This includes Step A to Generate a new finite element based bridge model, Step B to Create dead load, vehicular live load, construction, and other bridge loading data, and Step C to perform AASHTO LRFD code check.

In this video tutorial series the Steel Bridge Module is used to create, analyze, and code check a curved steel bridge featuring four I-Girders.

Features Overview

LARSA 4D's Steel Bridge Module uses a wizard-like interface to simplify 3D model generation for complex I, box, and tub girder bridges, while providing fully integrated AASHTO compliant code check and load rating tools, along with the ability to move beyond typical grillage analysis to utilize influence surface based live load.

Part A: Model Generation

In Part A: Model Generation, the module collects the needed structural information in order to generate a 3D finite element representation of the bridge. This task defines the general structure information including geometry, girder type, section, and material.

Part B: Bridge Loading

In Part B: Bridge Loading, the Steel Bridge Module generates load cases, staged construction information, and post analysis result cases including linear result combinations, extreme effect groups, and influence result cases according to AASHTO LRFD design code.

Part C: Code Check

In Part C: Code Check, we review how to map load classes and define the locations where the Steel Bridge Module will perform AASHTO LRFD code check.

LARSA 4D Steel Bridge Module Tutorial

Features Overview

Part A: Model Generation

Part B: Bridge Loading

Part C: Code Check

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