LARSA 4D Web Tools
Response Spectrum Curve Generator for Bridge Design
A free tool to generate curves for AASHTO LRFD Bridge Design Specifications 2007 and AASHTO Guide Specification for LRFD Seismic Bridge Design 2009 for locations in the continental United States. Based on data from the USGS.
General Options
Design Code:
Seismic Data Release:
Display On The Map:
Locate The Structure
Enter a city name, ZIP code, or street address, or drag the red marker in the map to the site location.
Or provide your own acceleration values below.
Soil Profile:
Site Class:
Spectrum Parameters
Location: None
| A: |
| PGA: | |
| SS: | |
| S1: |
Values are percentages of gravitational acceleration.
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
- Download Current Version LARSA 4D Version 2024.R2 - December 20, 2024
- Sign into your LARSA 4D Web Account View licensing information and training materials
- Academic & Evaluation Licensing Request a hands-on LARSA 4D License
LARSA 4D Products
Contact
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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