RF-CONCRETE Deflect Add-on Module for RFEM

Newsletter

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

Analytical Deformation Analysis of Plate Structures

The RF-CONCRETE Deflect add‑on module is an extension of the RF‑CONCRETE module group.

RF‑CONCRETE Deflect integrated in RF‑CONCRETE Surfaces allows for a deflection analysis of plate structures conforming to standard specifications when performing the analytical serviceability limit state design. The deformation analysis can be performed according to the following standards:

With RF‑CONCRETE Deflect, you can quickly and easily perform the design for limiting the deflection of reinforced concrete surfaces by considering different cross‑section conditions of uncracked and cracked concrete (state I and state II).

  1. 3.3 Serviceability Checks by Point

    Features

    • Deformation analyses of reinforced concrete surfaces without or with cracks (state II) by applying the approximation method (for example deformation analysis according to EN 1992-1-1, Cl. 7.4.3 )
    • Tension stiffening of concrete applied between cracks
    • Optional consideration of creep and shrinkage
    • Graphical representation of results integrated in RFEM, for example deformation or sag of a flat slab
    • Numerical results clearly arranged in tables and graphical display of the results in the model
    • Complete integration of results in RFEM printout report
  2. 1.1 General Data

    Input

    The deformation analysis is activated in the settings for analytical serviceability limit state design of the RF-CONCRETE Surfaces add-on module where you can also specify the settings for long-term effects (creep and shrinkage) and for tension stiffening between concrete cracks. The creep coefficient and shrinkage strain are calculated using the specified input parameters or defined individually.

    You can specify the deformation limit value individually for each surface or for an entire surface group. The allowable limit value is defined by the maximum deformation. In addition, you should determine if the design applies to a deformed or non-deformed system.

  3. Detailed settings

    Design

    The deformation analysis according to the approximation method defined in standards (for example deformation analysis according to EN 1992-1-1, Cl. 7.4.3) applies the calculation of so-called effective stiffnesses in the finite elements in accordance with the existing limit state of the concrete with or without cracks. These stiffnesses are used to determine the surface deformation by repeated FEA calculation.

    The effective stiffness claculation of finite elements takes into account a reinforced concrete cross-section. Based on the internal forces determined at the serviceability limit state in RFEM, the program classifies the reinforced concrete cross-section as "cracked" or "non-cracked". If the concrete concurrence between the cracks should be considered as well, the classification applies a distribution coefficient (according to EN 1992-1-1, Eq. 7.19, for example). The material behavior of the concrete is determined as linear-elastic in the compression and tension zone until the concrete tensile strength is reached, which is sufficiently precise for the serviceability limit state.

    When determining the effective stiffnesses, creep and shrinkage are considered at the "cross-section level". The influence of shrinkage and creeping in statically indeterminate models is not considered by this approximation method (for example, in the case of structures restrained on all sides, tensile forces from shrinkage strain are not determined and have to be considered separately). In summary, RF-CONCRETE Deflect calculates deformations in two steps:

    1. Calculation of effective stiffnesses of the reinforced concrete cross-section assuming linear-elastic conditions
    2. Calculation of deformation using the effective stiffness with FEA
  4. Deformation displayed in RFEM

    Results

    After the calculation, the module shows clearly arranged tables listing the deformation analysis results including all intermediate values. Graphical representation of design ratios and deformation in RFEM facilitates a quick overview of critical or cracked areas.

    Since the design results are displayed by surface or by point including all intermediate results, you can retrace all details of the calculation. The complete integration of results in the RFEM printout report guarantees verifiable structural design.

Contact us

Contattaci

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

info@dlubal.com

Customer Projects

Customer Projects designed by Dlubal Software products

Interesting customer projects designed with the structural analysis programs by Dlubal Software.

PRICE for RFEM (VAT excluded)

  • RF-CONCRETE Deflect 5.xx

    400.00 USD

  • Next License

    225.00 USD

Screenshots
Customers who bought this product also bought
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 Main Program
RFEM 5.xx

Main Program
Structural FEM Analysis Software

RFEM Concrete Structures
RF-CONCRETE 5.xx

Add-on Module for RFEM
Reinforced Concrete Design of Members and Surfaces (Plates, Walls, Planar Structures, Shells)

RFEM Steel Structures
RF-STEEL EC3 5.xx

Add-on Module for RFEM
Design of Steel Members and Sets of Members According to EC 3

RFEM Concrete Structures
RF-CONCRETE Columns 5.xx

Add-on Module for RFEM
Reinforced Concrete Design According to Model Column Method (Method Based on Nominal Curvature)

RFEM Concrete Structures
RF-CONCRETE NL 5.xx

Add-on Module for RFEM
Physical and Geometrical Nonlinear Calculation of Beam and Plate Structures Consisting of Reinforced Concrete

RFEM Others
RF-STABILITY 5.xx

Add-on Module for RFEM
Stability Analysis According to Eigenvalue Calculation Method

RFEM Timber Structures
RF-TIMBER Pro 5.xx

Add-on Module for RFEM
Design of Timber Members and Sets of Members

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

Add-on Module for RFEM
Analysis of Natural Vibrations

RFEM Concrete Structures
RF-FOUNDATION Pro 5.xx

Add-on Module for RFEM
Design of Single, Bucket and Block Foundations

RFEM Others
RF-IMP 5.xx

Add-on Module for RFEM
Generation of Pre-Deformed Initial Structures and Equivalent Imperfections for Nonlinear Calculation

RFEM Others
RF-SOILIN 5.xx

Add-on Module for RFEM
Determination of Elastic Foundation Coefficients Based on Soil Data