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Tendons for RFEM 6
  • Prestressed Concrete
  • Tendons
  • Reinforced Concrete

Tendons for RFEM 6

The Tendons add-on for RFEM 6 allows you to extend your calculations with the realistic modeling of prestressed and post-tensioned tendons. Thanks to the free 3D definition of the tendon geometry and the complete integration into the finite element calculation, you get a precise and powerful solution for demanding concrete structures.

Download Free Trial
3D illustration of a single-span concrete beam with prestressing tendons visible, demonstrating tendon placement.

Precise Modeling and Calculation of Prestress

The direct 3D integration of prestressed elements into the finite element method (FEM) gives you realistic and precise results for the calculation of prestressed concrete components. Engineers can easily model, analyze and optimize the effects of prestress on the entire structure.

  • Exact consideration of statically determinate and statically indeterminate internal forces due to prestressing
  • Automatic assignment of tendons to concrete members and ribs
  • Detailed stress analysis in concrete beams and tendons according to SLS design checks
Concrete beam model showcasing prestressed reinforcement with bending moments My, diff, using RFEM 6 Tendons add-on technology.
Concrete beam model with display of prestressed reinforcement and bending moments My, diff

Main Features of Tendons Add-on

90-Day Full Trial Version Download

Explore Advantages

  • Updated prestressing steel material library according to EN 10348
  • Free 3D definition of tendon geometry using the RFEM 6 line type catalog
  • Multiple assignment of tendons to concrete members and sets of members with automatic link
  • Individual definition of tendon geometry with API II (Python)
  • Fast update of tendon geometry by using API
  • Consideration of construction stages with the "Construction Stages” add-on
  • Analysis of SLS stresses in concrete beams and tendons with the ”Stress-Strain Analysis” add-on

Enhanced Functionality

By using the open API II, tendon geometries can be efficiently adapted and assigned multiple times. The consideration of nonlinear material models and the possibility of sequential prestressing significantly expand the areas of application.

  • Fast adaptation of tendon geometry via Dlubal API, including individual definition with Python
  • Automatic multiple assignment of tendons to concrete members and ribs
  • Integration into construction stage calculations with the "Construction Stages" add-on for realistic simulation of the construction process
  • Advanced material modeling with the "Nonlinear Material Behavior" add-on
Concrete beam model with prestressed reinforcement and a settings dialog for tendon members in RFEM 6.
Model of a concrete beam with prestressing reinforcement and a settings dialog box for cable members in RFEM 6

Designing Prestressed Planar and Tubular Surfaces

Arrange tendons directly in planar and tubular surfaces in RFEM 6. The software automatically detects tendons inside these surfaces and connects them accordingly, allowing for precise introduction of prestress loads. Global parameters enable centralized control of prestressing values, streamlining the modeling process for complex geometries such as slabs, shells, and tubular structures.

Go to Explanatory Video
Visualization of tendons within planar and tubular surfaces in construction.

Get Started with Models to Download

Get Started with Models to Download
Illustration of a single-span concrete beam showing prestressing tendons using RFEM 6 with various reinforcement types.
Single-Span Concrete Beam with Prestressing Tendons

This model features a single-span concrete beam with prestressing tendons. It includes six distinct types of simply supported reinforced concrete beams containing tendons.

Detailed view of a concrete T-beam with tendon reinforcement and integrated slab modeled for analysis.
Concrete T-Beam with Tendons

This model is a concrete T-beam reinforced with tendons, integrated with a concrete slab. The reinforcement with tendons enhances the structural capacity of the beam.

A reinforced concrete continuous beam featuring integrated tendons used for prestressing reinforcement to enhance structural performance.
Reinforced Concrete Continuous Beam with Integrated Tendons

This model showcases a reinforced concrete continuous beam with integrated tendons for prestressing reinforcement. It demonstrates the application of the Tendons add-on in RFEM 6.

Simulation of a single-span beam with and without prestressing tendons using construction stages for structural analysis.
Single-Span Beam with Prestressed Tendons

This model shows a single-span beam in two configurations: once as a standard simply supported beam, and once as enhanced with prestressed tendons. Utilizing the Construction Stages add-on, the model simulates the phased introduction of these tendons.

Models to Download

Recommended Add-Ons for Tendon Design

For working with tendons in the first development stage, we recommend the following add-ons for RFEM 6:

Add-on

Stress-Strain Analysis

In the Stress-Strain Analysis add-on, you can perform a general stress analysis.

Download
Graphical representation of stress-strain analysis using RFEM 6 software, depicting stress distribution in a structural element. Graphical representation of stress-strain analysis using RFEM 6 software, depicting stress distribution in a structural element.
Add-on

Construction Stages Analysis

It can ensure that the construction process of structures (member, surface, and solid structures) is considered in RFEM.

Coming Soon for Tendons
Construction Stages Analysis visualization for RFEM 6 demonstrating phased modeling process. Construction Stages Analysis visualization for RFEM 6 demonstrating phased modeling process.

What Our Users Say

The Tendons add-on for RFEM 6 is very convenient

My opinion concerning the Tendons add-on: As a result of my research, I obtained the following results:

  • The calculated deflections and cracks correspond to the test ones
  • The results of the calculations are submitted in an accessible and friendly interface
  • The use of the add-on is very convenient, not requiring additional functions
Sergiy Umanskiy
Sergiy Umanskiy

Structural engineer and owner of, PPVP KARKAS
Panasa Myrnoho proyizd 3, Khmelnytskyi, 29027
Ukraine