FiXperience Online
C-Fix Online

Includes current design standards, e.g. EN 1992-4 and EOTA TR 054 for the dimensioning of steel and bonded anchors in concrete as well as injection systems for anchoring in masonry. The anchor design in concrete can be performed either assuming a rigid base plate following a linear strain distribution or considering realistic stiffness conditions using a spring modeling approach. 

To the online version

Advantages C-FIX Online

Spring model in C-FIX Online

The linear spring model combined with a finite-element approach allows the determination of anchor forces of group fixings. This allows the comparison between anchor forces of linear force distribution and realistic anchor forces.

The calculation is conducted with the well-established finite element software RFEM® by Dlubal® in the background of our servers. The modelling and verifications are performed as usual in C-FIX Online.

  • Increasing the base plate thickness
  • Enlarging the connected profile
  • Applying additional stiffeners
  • Selecting another anchor system to optimize the force distribution
  • Changing the spacings.

To spring model

Your time is valuable

The FEM calculation tool provides you with further information to design a sufficiently stiff base plate. It is no longer necessary to switch between the anchor design software C-FIX Online and a finite element software for the base plate calculation and design. This feature is a real time-saver!

Advantages FEM Design: ​


Licenses for the spring model tool

The following licenses are available:

The anchor design assuming a rigid base plate is possible without a license for free at any time. With the free version the anchor loads are calculated following a linear strain distribution (analog to Bernoulli hypothesis) and the requirements of the current design standards are fulfilled. An additional stiffness check might be required.

To C-FIX Online


The app for the design and calculation of fischer cast-in channels for any applications


  • It creates flexibility in the design with variable application modelling features.
  • Helps to optimize the design and solutions possible with the fischer product range appropriate to the given specifications.
  • Fast, reliable and transparent reporting showing all influencing parameters to make the design tracable even with a pen and paper.