RF-INFLUENCE Add-on Module for RFEM

Further Information


Receive regular information about news, useful tips, scheduled events, special offers, and vouchers at least once a month.

Determination of Influence Lines and Influence Surfaces

The RF-INFLUENCE add‑on module for RFEM creates influence lines and surfaces due to a constant internal force such as axial force, shear force, or bending moment.

Influence lines and surfaces express graphically how a unit load affects the internal reactions on any possible load position of the model.

  1. Features

    • Simple definition of unit loads in RFEM model
    • Simple definition of the points on members, surfaces, and supports to be analyzed
    • Numerical results and graphical display of unit load or designed point results
    • Detailed printout report including all model and load data of each designed point and unit load used
  2. 1.1 General Data


    Member and surface models created in RFEM are analyzed at a particular point by applying a unit load with the previously defined load magnitude and direction. The module determines the way of unit load effects on the internal forces for the inspected point.

    This simulation is represented graphically by an influence line or influence surface resulting from the load magnitude of the force or moment on the inspected model point. The graphical representation can be used for further analyses or to check the behavior of the model.

    The RF-INFLUENCE add-on module determines the influence lines and surfaces of models containing beams and surfaces.

  3. 2.3.2 Influence Surfaces


    After defining the points to be analyzed, the module generates influence lines and surfaces. Then, all result diagrams are available in result windows sorted by points and unit loads applied on members, surfaces, and supports.

  4. Printout report

    Results and Export

    The results of each influence line and surface are listed in result windows. However, it is also possible to evaluate them graphically.

    You can export the result tables to MS Excel or OpenOffice.org Calc. In addition, the global RFEM printout report is available for printing the input and result data as well as graphics.

Contact us


Do you have any questions about our products? Do you need advice for your current project? 
Contact us or find various suggested solutions and useful tips on our FAQ page.

+49 9673 9203 0


PRICE for RFEM (VAT excluded)


    580.00 USD

  • Next License

    261.00 USD

RFEM Main Program
RFEM 5.xx

Main Program

Structural FEM Analysis Software

RFEM Concrete Structures

Add-on Module

Reinforced Concrete Design of Members and Surfaces (Plates, Walls, Planar Structures, Shells)

RFEM Steel Structures

Add-on Module

Design of Steel Members and Sets of Members According to EC 3

RFEM Concrete Structures
EC2 for RFEM 5.xx

Module Extension for RFEM

Extension of Reinforced Concrete Design Modules with Design According to Eurocode 2

RFEM Others

Add-on Module

Stability Analysis According to Eigenvalue Calculation Method

RFEM Others
RF-MAT NL 5.xx

Add-on Module

Consideration of Nonlinear Material Laws

RFEM Dynamic Analysis
RF-DYNAM Pro - Natural Vibrations  5.xx

Add-on Module

Analysis of Natural Vibrations

RFEM Others
RF-MOVE 5.xx

Add-on Module

Load Case Generation from Moving Loads for Members and Sets of Members

RFEM Others
RF-IMP 5.xx

Add-on Module

Generation of Pre-Deformed Initial Structures and Equivalent Imperfections for Nonlinear Calculation

RFEM Concrete Structures

Add-on Module

Physical and Geometrical Nonlinear Calculation of Beam and Plate Structures Consisting of Reinforced Concrete

RFEM Dynamic Analysis
RF-DYNAM Pro - Forced Vibrations 5.xx

Add-on Module

Time History Analysis and Multi-Modal Response Spectrum Analysis

RFEM Others
RF-MOVE Surfaces 5.xx

Add-on Module

Generation of Moving Loads on Surfaces