CSiBridge

perpetual license + annual maintenance, same public rate-card page as SAP2000/ETABS Engineer & Analyze

Parametric bridge analysis, design, and load-rating software from CSI -- defined using layout lines, spans, bearings, abutments, bents, hinges, and post-tensioning; includes the SAPFire analysis engine with staged construction, creep/shrinkage, cable tensioning, geometric/material nonlinearity, and AASHTO LRFD design code checks.

3.4 /5 composite score
C2 3/5 reflects the CSI OAPI across VBA, VB.NET, C#, C++, Python, and MATLAB, and C1 4/5 reflects public perpetual pricing from USD 13,391 to USD 29,756 plus maintenance. The structural scope is bridge analysis, design, and load rating rather than general building analysis.
Solid

Rubric Scorecard

How we grade →

Criterion Score Evidence
Value for the price 4/5 perpetual license + annual maintenance, same public rate-card page as SAP2000/ETABS, from $13391 Source →
Agent Friendliness 3/5 API: CSI OAPI (VBA, VB.NET, C#, C++, Python, MATLAB) -- shared with SAP2000/ETABS/SAFE Source →
Ease of adoption 2/5 --
Portability & lock-in 4/5 3 file formats
Interoperability 4/5 4 integrations

Pricing

Modelperpetual license + annual maintenance, same public rate-card page as SAP2000/ETABS
Entry price$13391
Free tierno
Billing unitper-seat
TiersPlus ($13391), Advanced ($23805), Advanced with Rating ($29756)
Visit CSiBridge →

How we verified this: we checked CSiBridge against its live site and an independent source — thestructuralengineer.info. Nothing on this page is listed from memory. See how we grade. Verified 2026-07-07.

Evidence

File formats

FormatDirectionSupport
BRG unknown unknown
IFC unknown unknown
E2K unknown unknown

Integrations

SAP2000 ETABS SAFE Revit (CSI x Revit link)

Sources

API docsPricing

Also covers

CSiBridge also appears in these sub-categories:

Civil & Infrastructure
The civil-infrastructure placement is tied to bridge span modeling, staged construction analysis, and AASHTO code checks; C5 4/5 reflects interoperability with SAP2000, ETABS, SAFE, and Revit.

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