The most widely used fully- integrated and adaptable Strctural analysis solution in the world.

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Intergraph GT STRUDL Structural Modeling, Analysis & Design

Intergraph® GT STRUDL® Structural Modeling, Analysis & Design

For almost 40 years GT STRUDL has been one of the most widely accepted computer-aided engineering and design tools for structural analysis and design. It is trusted and used globally by thousands of engineers to deliver accurate results, quickly and efficiently.

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Proven Track Record
GT STRUDL is one of the most widely used fully-integrated and adaptable structural analysis solutions in the world. The software has a proven track record in a variety of applications such as: nuclear and conventional power generation, on- and off-shore facilities, marine, civil and infrastructure, and others.
GT STRUDL is capable of supplying engineers with accurate and complete technical data for efficient and engineering and design decision making. GT STRUDL is a market leader in its field for quality, reliability, and technical support.Nuclear Quality Assurance
Since 1983 the Quality Assurance and Quality Control (QA/QC) program and procedures GT STRUDL have been some of the industry’s most rigorous, and have been in full compliance with applicable provisions of the U.S. NRC’s 10CFR21and 10CFR50 Appendix B regulations. In addition, GT STRUDL QA procedures are in full conformance to the ASME NQA-1-2008 including the 2009 Addenda Subpart 2.7 (NQA-1a-2009).
The QA/QC program and procedures of GT STRUDL are routinely audited by independent auditors from nuclear industry corporate licensees several times each year, and by auditors representing NUPIC (Nuclear Procurement Issues Committee) and NIAC (Nuclear Industry Assessment Committee) on a three year cycle.
Each version of GT STRUDL, is validated and verified (V&V) for its computational quality and performance by the execution of over 350 base verification test problems that are documented in the four volume Base Verification Manual, and by the execution of approximately 4,700 general verification test problems for a total of over 5,000 V&V test problems.

Feature-rich Integration
GT STRUDL is a fully integrated and database driven software system for general finite element analysis and comprehensive structural engineering design. GT STRUDL has nine functional areas that operate seamlessly with one another, and combined with amazingly fast computational speed, provides virtually unlimited power and flexibility for projects of any size or complexity.

The linear and nonlinear static and dynamic analysis capabilities of GT STRUDL are respected globally and few programs possess its depth and breadth of functionality. GT STRUDL includes all the tools necessary to analyze a broad range of structural projects, from the simplest, to the most complex, and can do so accurately and reliably in a fraction of the time of many other solutions.

Steel Design
GT STRUDL Steel Design provides the structural engineer with the ability to perform steel member design and code checking pursuant to a large variety of global steel design codes dating back to the 1960’s. These details are extensively documented, enabling the engineer to review the details of its code checking procedures.

Steel Design cont…
GT STRUDL enables engineers to have extensive control over the steel member design/code checking process through a large number of control parameters, specification of absolute and relative geometric constraints, member size smoothing options, automatic analysis/design iterations, and many more control options. This control enables engineers to deliver optimal designs in the most cost effective manner.

Base Plate Wizard
Complex steel Base Plate modeling, linear and nonlinear analysis, and performance evaluations can be performed using an easy-to-use and full featured graphical interface. Users can model base plate criteria including holes, notches, and tabs, anchors, attachments, stiffeners, bearing surface data and boundary conditions representing shear lugs, and edge welds etc.

Reinforced Concrete Design
GT STRUDL Reinforced Concrete Design can be used to design beams, columns, one-way slabs, shear walls, and two-way flat plate and flat slab structures per ACI 318. With special member, floor slab and wall panel automatic generation capabilities, even complex reinforced concrete building structures are easily modeled. GT STRUDL also provides detailed quantity take-offs based on design results. A great deal of engineering time can be saved with this capability.

Offshore Jacket and Pile Analysis
GT STRUDL provides the ability to analyze and model environmental loadings such as wind loads, cyclic wave loads, current loads, buoyancy loads, launching and lifting loads, and seismic loads that are applied to offshore structures such as fixed jacket structures, cable stayed and tension-leg semi-submersible structures, and other rigid floating structures.

Both linear and nonlinear analysis, jacket launch, stability and upending analysis, fatigue checking using Power Spectral Density, Discreet Probability, and Deterministic methods, stress concentration factor calculations, nonlinear pile-structure interaction analysis, and code checking by the ISO 19902:2007(E) and API RP 2A-WSD 21st Edition can be performed.

Import/Export of Structural Model Data
GT STRUDL has the ability to import and export models via CIS/2 and other interfaces. This allows structural data-rich models created outside of GT STRUDL to fully leverage the power of GT STRUDL and for external packages to benefit from the advanced power and benefits that GT STRUDL offers.

User Documentation
GT STRUDL is supplied with comprehensive and detailed user documentation that clearly identifies the product’s functionality and capabilities. The product’s functionality, application of cutting edge technologies, implementation of structural mechanics, theoretical formulations, and design code specifications are all fully and clearly laid out to give the engineer a full and clear understanding of the solution’s capabilities.

NozzlePRO is a component analysis tool for piping and pressure vessels. The tool brings the accuracy of the finite element method to the engineering community for general design and analysis. NozzlePRO technology is a significant improvement over the limitations inherent in WRC 107/297 methods and it enables rapid FEA modeling and analysis of a wide range of piping and pressure vessel components.


These modules were designed to add increased ease-of-use & design for the most common analysis needs. All of the following modules are included with NozzlePRO v8.5 (Feb 2012 edition) as specialized templates.

  • MatPRO is an exhaustive database of ASME material properties that can be used with PRG and third party software products. MatPRO also includes calculators for high temperature analysis, fatigue allowable comparisons, Fitness for Service evaluations and creep fatigue.
  • Fitness for Service Analyze local thin areas and crack-like flaws using API 579 methodologies for Level 2 & Level 3 checks.


  • NH Reporting  Overcome limitations to Section VIII, Div. 2 fatigue evaluation and evaluate fatigue/creep interaction.


All of the NozzlePRO ADVANCED MODULES described above are bundled with NozzlePRO and customers who do NOT maintain a software support plan (Service Plan) with PRG will retain the use of those modules but will lose the right to support and software updates. The modules listed below (FE107 & FESIF) are only available to customers that MAINTAIN a current NozzlePRO software support agreement (Service Plan).

  • FE107 provides stress analysis of nozzle connections on piping and pressure vessels. It replaces WRC107 as a calculation tool that can be applied when WRC107 semi-empirical methods are limited.  FE107 can be applied to a wide range of geometries.
  • FESIF automatically calculates stress intensification factors (SIFs) and flexibility factors for a wide variety of piping intersections not covered by the B31 piping codes.


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