Introducing ThreeDFEM

ThreeDFEM ('3D-FEM') is a finite element software for the structural analysis and design of slabs, walls, folded plates, shells, and solids.

Two-way slabs and walls are generated with only a few parameters and are easily analysed and designed according to Eurocode. Shells and folded plates are generated like surface models or are simply extruded from wireframe models.

ThreeDFEM is completely integrated within Microsoft Windows and can easily be used in multi-language projects or working environments. It even can serve as a major communication tool for engineers working from different countries on international projects. Therefore, ThreeDFEM is an active contribution to build a single European market.

ThreeDFEM features a powerful graphical user interface unmatched in terms of ease-of-use and productivity. Creation and modification of the structural model, running the analysis, and checking and optimisation of the design are all done through the same interface. Graphical displays of the results are always at the structural engineer's fingertips. Armed with ThreeDFEM, structural engineering becomes a delight.

Enjoy!

Figure: The Modern ThreeDFEM Graphical User Interface (two-way slab)

Figure: The Classical ThreeDFEM Graphical User Interface (two-way slab)

Figure: The Print Preview of ThreeDFEM (folded plates and shells)

About ThreeDFEM

ThreeDFEM
Structural Analysis and Design of Reinforced Concrete Slabs, Walls, Folded Plates, and Shells
Copyright © 2006-2024, Ralf Martin Hansen
All Rights Reserved
Made in Germany

Ralf Martin Hansen
Schwarzwaldstr. 22
78234 Engen - Germany
http://www.RalfMartinHansen.de

Product Features

Daily Use:

Easy-to-use graphical user interface
Comprehensive help
E-mail support

Abstract Model (two-way slabs and walls):

Input of slab regions with rectangular, circular, or complex polyline
Input of wall regions with rectangular, circular, or complex polyline
Input of openings with rectangular, circular, or complex polyline
Input of uniform surface loads with rectangular, circular, or complex polyline
Input of temperature loads with rectangular, circular, or complex polyline
Input of elastic foundations with rectangular, circular or complex polyline
Input of walls as line support
Compression-only supports (e.g. shallow foundations subjected to overturning, lifting of slabs at the corners)
Input of columns
Input of T-Beams
Input of joints in slabs as hinge line with or without translational and rotational stiffness
Input of distributed loads
Input of global oriented and rotated concentrated loads
Mesh generator

Folded Plates and Shells:

Generation of 3D-surface meshes with 3D-Quadrilateral
Generation of 3D-surface meshes with extrusion
Generation of shells with rotation of a function
Generation of boxes
Generation of cones and cylinders
Generation of spheres and domes
Input of flat shell elements
Input of joint elements
Input of flat shell faces (orthogonal)
Input of point and line supports
Compression-only supports (e.g. shallow foundations subjected to overturning, lifting of slabs at the corners)
Input of joints as hinge line with or without translational and rotational stiffness
Input of openings with rectangular, circular, or complex polyline
Input of global oriented and rotated concentrated loads
Input of distributed loads
Input of uniform surface loads with rectangular, circular, or complex polyline
Input of temperature loads with rectangular, circular, or complex polyline
Input of elastic foundations with rectangular, circular or complex polyline
3D mesh generator (orthogonal)

Solids:

Input of solid elements
Meshing of solid elements in X-, Y-, and Z-direction
Input of point supports
Input of global oriented and rotated concentrated loads
Input of uniform surface loads with rectangular, circular, or complex polyline
Input of elastic foundations with rectangular, circular or complex polyline

Combined Systems:

Frame elements can be combined with folded plate elements in the same system (Beta).

Structural Analysis:

Linear elastic quadrilateral slab (plate bending) elements
Linear elastic quadrilateral wall (membrane) elements
Linear elastic quadrilateral flat shell elements
Linear elastic hexahedron solid elements
Elastic node supports
Compression-only supports
Rotated supports
User-definable materials
Standard material library
User-definable slab sections
User-definable wall sections
User-definable flat shell sections
Input of basic orthogonal reinforcement
Global oriented and rotated concentrated loads
Distributed loads for slabs and walls
Uniform surface loads for slabs and walls
Temperature loads for slabs and walls
Automatic generation of load combinations (ultimate limit state) for slabs
User-definable load combinations
Enveloping of load combinations

Post-processing:

All output is suitable for submission to checking authorities
System and load diagram
Support reactions diagram
Deformed shape diagram
Diagrams with element displacements
Bending moment, twisting moment, and principal moment diagrams
Shear force diagrams
Design moment diagrams
Shear resistance diagrams (without shear reinforcement)
Shear ratio diagrams (without shear reinforcement)
Shear reinforcement diagrams
Punching shear reinforcement diagrams
Axial, shear, and principal force diagrams
Stress diagrams
Design force and principal stress diagrams
Diagrams with required reinforcement
T-Beam design with corresponding diagrams
Eigenvalues with mode shapes
Diagrams with contour lines

Customization Features:

Prototypes (default files)
Automation (script files)
Structural analysis server (Automation/COM Component/ActiveX)
User-selected report editor (html browser)

Current Limitations:

Theoretically, any slab or wall shape can be modelled. In practice however, the system should be more or less orthogonal.