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NextFEM Designer has a modular structure to meet the needs of every user. The basic program, freely downloadable from this site, is licensed to the user also for commercial usage, with no charge.

Additionally, NextFEM Designer includes several paid modules that can be added to the main program, such as:

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The General Design module activates in the program some advanced features such as:

  • automatic generation of load combinations as per NTC2008 and Eurocode 3 (EN 1993-1-1) for Ultimate and Serviceability Limit States;
  • checking of steel members as per NTC2008 and Eurocode 3 (EN 1993-1-1);
  • checking of timber frames as per Eurocode 5 (EN 1995-1-1);
  • mesher for solid elements.

The AluCheck module enables the checking of aluminium alloy members as per Eurocode 9 (EN 1999-1-1) in general structures and also in scaffoldings/frameworks.

NextFEM Designer is able to extrude in an accurate way the transversal section.

 

 

The Concrete Module allows to check all the Reinforced Concrete (RC) structures.
Firstly, Section Analyzer is a cross-section calculator able to calculate all the types of sections, no matter their shape or their base material. For RC sections, the program supports the Parabola-rectangle and the bi-linear non-linear laws, and can account for the concrete tensile strength.

Section Analyzer supports:
– reinforced concrete sections, including prestressing rebar;
– steel and aluminium alloy;
– beam, columns, walls and slabs, finding strength or unit length or for the entire section;
– shear verification as per European codes;
– FRP reinforcements;
– ultimate curvature calculation;
– interaction with member forces in the model.

For steel, a customizable hardening ratio is available, for any Limit State evaluation.

In addition, strenght of transversal section subjected to fire can be evaluated on any type of geometry. The user can customize even the reduction curves used by the solver for strenght and/or stiffness of each component of the section.

Rebars for reinforced concrete members can be easily added by an intuitive interface. The program supports any rebar discretization, both for longitudinal reinforcements and stirrups.

Finally, the Concrete module performs the checking for beams, columns and walls with assigned rebar. The verification made is compliant with Eurocode 2 (EN 1992-1-1) recommendations.

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The ImportExport module enables the following features:

export of the model to SAP2000®;

exporting the wireframe or extruded model in DXF format;

import of the model from Midas GEN®

import of the model from Straus7® .

The Non-Linear module adds to the program a long series of non-linear elements and hinges, in order to perform static and dynamic analyses.

A large variety of springs is available:

  • gap and hook;
  • bi-linear and tri-linear plastic laws;
  • Pivot, Tomazevic-Lutman and ring-shape rules;
  • symmetrical and unsymmetrical slip-type laws;
  • and more…

Non-linear hinges, part of this module, are highly customizable. Through the simple scripting engine already available for verifications, hinges can be set-up with user-defined values, even with interaction domain between shear/moment and axial force.

Hysteretic law for bilinear asymmetric hinges

The FireSafe module has been designed to provide fire resistance of reinforced concrete, steel and aluminum structures in just a few steps. It includes thermal analysis of sections of the modeled elements, providing verification in terms of capacity with the analytical method. The analyses are congruent with the requests of the Eurocodes.

NextFEM API (Application Programming Interface) are dedicated to all the advanced needs, i.e. modelling by using other programs (Microsoft Office (R), AutoCAD (R), etc.) or spreadsheets. Reading results is allowed without any license. For inputing the model at a programmatic level, API license is needed.