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BRIDGE ENGINEERING STARTS HERE

The LARSA 4D Difference

At LARSA, we've spent the last three decades leading the field of bridge engineering software with the latest computing technologies produced to the highest standards of quality. During this time we've developed a way of doing things that we call The LARSA 4D Difference.

It's about an unwavering commitment to all steps that go into the development of our software, and the ever-changing needs of the bridge engineering community supported by LARSA's staff of engineers and researchers that are highly specialized, yet very collaborative. But most of all it's about our commitment to deliver the highest degree of customer satisfaction to our clients, who believe there's a better way of doing things.

LARSA 4D Version 2025.R1

LARSA 4D 2025.R1 has improvements throughout the application. LARSA 4D 2024.R2 introduced Nonlinear Dynamic Rolling Stock Analysis, the CQC3 spatial combination method for Response Spectra Analysis, and new capabilities in C-Suite Code Check, Moment Curvature Analysis, and Biaxial Interaction Analysis. Registered users may visit LARSA 4D's product download page for more information.

LARSA 4D New Product Additions

LARSA 4D AOM Pile Foundation Modeler

The LARSA 4D AOM Pile Foundation Modeler is an integrated tool for the modeling and analysis of pile foundations based on the principles of soil structure interaction. The tool uses parametric input to rapidly generate analytical models of one or more pile foundations that can be analyzed directly within the Modeler or exported to LARSA 4D.

Visit our Product Page to learn more.

LARSA 4D C-Suite

LARSA 4D C-Suite is a design expansion for LARSA 4D BRIDGE SERIES integrating analysis and design capabilities for concrete components. Rapidly perform Biaxial Interaction Analysis, Moment Curvature Analysis, and detailed code checks for reinforced and pre- and post-tensioned concrete structures, including pier columns.

Visit our Product Page to learn more.

LARSA 4D BRIDGE SERIES Videos

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View the full catalogue of LARSA 4D Videos.
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July 2025
LARSA 4D C-Suite Code Check Tutorial
From evaluating individual bridge elements to verifying full-structure compliance, LARSA 4D C-Suite's Code Check tool enhances design confidence through precise analysis, integrated workflows, and clear, code-aligned results.
March 2025
LARSA 4D AOM Intro
LARSA 4D AOM streamlines 3D FEA model creation using parametric objects that generate real-time analytical twins. AOM provides powerful tools for model creation and modification, efficiently handling structural changes and analytical refinements.
March 2025
LARSA 4D AOM Pile Foundation Modeler Intro
The LARSA 4D AOM Pile Foundation Modeler is a cutting-edge tool to streamline the modeling and analysis of pile foundations. Built on the principles of soil-structure interaction, this innovative solution enables rapid, parametric modeling of piles with unmatched accuracy.
March 2025
Tutorial | LARSA 4D AOM Pile Foundation Modeler
This tutorial models a pile foundation using LARSA 4D's Pile Foundation Modeler, leveraging the power of LARSA's new AOM technology. Watch as we rapidly define pile caps, piles, and soil layers, creating a detailed 3D finite element model, and exporting it to LARSA 4D.
March 2025
LARSA 4D C-Suite Intro
LARSA 4D C-Suite provides advanced, integrated tools for pre-and post-tensioned concrete structures. C-Suite’s moment curvature and biaxial interaction analyses, and the ability to quickly perform code checks for piers, columns, and girders ensures efficient, accurate designs.
March 2025
Tutorial | C-Suite Moment Curvature Analysis
C-Suite’s Moment Curvature Analysis tool calculates moment capacities for the analysis and design of concrete piers and girders, including with pre-and post-tensioned tendons. Advanced material models and detail cross-sectional properties unlock the potential of your projects.
January 2023
LARSA 4D Pier Code Check Tool
The LARSA 4D Pier Code Check Tool enables detailed design checks on Material Properties, Reinforcement Limits, Shear Capacity, Transverse Reinforcement Requirements, Longitudinal Reinforcement Limits, and Control of Cracking of Pier Columns.
May 2022
LARSA 4D Live Load Analysis
LARSA 4D live load analysis supports influence lines and influence surfaces. LARSA 4D’s load positioning solver combined with influence-surfaces and compound element forces allows engineers to accurately and rapidly perform refined live load analysis.
February 2022
LARSA 4D Staged Construction Analysis
LARSA 4D perofrms multiple static and dynamic analyses such as eigenvalue, response spectra, linear and nonlinear time-history, or pushover at any stage within the same run of stage construction analysis, including with or without time-dependent effects.

Upcoming Events

Visit LARSA's LinkedIn page to stay up to date with our upcoming events and latest news.
The International Bridge Conference
July 14-16, 2025
Pittsburgh, Pennsylvania
12th New York City Bridge Conference
August 25-26, 2025
New York, New York
The Western Bridge Engineers’ Seminar
September 2-5, 2025
Tacoma, Washington

The Most Trusted Software for Complex Bridges

The New Tappan Zee Bridge
Port Mann River Bridge
Basohli Bridge
Harbor Drive Pedestrian Bridge
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Supporting Industry Leaders since 1986

LARSA, Inc. develops advanced software for the analysis and design of bridges and structures based on the finite element method.

LARSA is privately owned and based in New York, with all its software development and product support conducted in-house.

LARSA 4D Resources

LARSA 4D Products

Contact

LARSA, Inc.
68 South Service Road, Suite 100
Melville, New York 11747
Phone: (800) LARSA-01
Phone: +1 212-736-4326
Fax: 631-454-5252
Email: info@larsa4d.com

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