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		ELPLA


	- Description

	- Calculation methods

	- Boundary conditions

	- Geometry and Loads

	- Piles

	- Soil

	- Design of the slab

	- Graphical drawing

	- Drawing sections

	- Tabulating data and results

	- Typical applications

	- New features

	- Tutorial

	- Verification Examples

	- Practical Examples

	- Reinforced Concrete Design Examples


		BOHR


		TIEF


		GeoTools


		Self-Adaptive Mesh Wizard


		GEOTEC-Editor

2.8 FE-Net

Different element types are developed to generate the FE-Net of the slab according to Grid-based approach for both triangular and rectangular elements and according to Delaunay's triangular generation for triangular elements.

User-friendly embedded program for mesh generation is developed. The essential features in this embedded program are:

-	You can generate the FE-Net for square, rectangular and irregular slabs using 6 different types of nets, Figure B-5.

-	You can generate the FE-Net for circular and ring slabs using 8 different types of nets, Figure B-6.

-	You can represent an irregular slab with openings and arc boundaries using a refine mesh, Figure B-7.

-	It is possible to use combined rectangular, quadratic and triangular finite elements at the same time for the slab, Figure B-8.

-	It is possible to define reference points and lines on the slab, Figure B-9. Reference points and lines are used to define the positions of girders, supports, piles, etc on the slab. Each time that the user generates the mesh, nodes of the FE-Net are passed automatically through these references. This provides the flexibility to make changes in the finite element mesh without having to redefine the positions of girders, supports, piles, etc.
-	It is possible to refine the mesh in a specified region such as around supports to present the concentration of stress, moment and settlement in this region, Figure B-10.
-	It is possible to optimize the dimension of FE-Net by making all elements having nearly the same area using the option "smoothing the mesh".
-	FE-Net can be displayed in separated elements, Figure B-11.

Figure B-5 Generation type for square, rectangular and irregular slabs

Figure B-6 Generation type for circular and ring slabs

Figure B-7 Irregular slab with triangular finite elements

Figure B-8 Irregular slab with combined rectangular, quadratic

and triangular finite elements

Figure B-9 Reference points and lines on the FE-Net

Figure B-10 Refining the mesh around a specified node

Figure B-11 FE-Net in separated elements

2 Enhancements in version ELPLA 9.0

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