logo

ERTEK BUILDING SYSTEM
RESEARCH AND TECHNOLOGY ON CONSTRUCTION

PRESENTATION AND PROPAGATION OF BUILDING TECHNOLOGY

 

home

downloads

What is the ERTEK system

  • The construction method in a glance
  • The ERTEK building system in a glance

Description of the attributes of the structural skeleton

  • Technical features
  • Elements of the structural skeleton
  • Reduced weight and anti-earthquake behavior

Economy of construction

  • Production of the structural skeleton
  • The utility of the structural skeleton as infrastructure for the completion of the construction
  • Consequences of the reduced time of production on the economy of the construction

Example case study of the ERTEK system

  • Production cost
  • Duration of the production process

Downloads

  • Time and cost schedule of a building project
  • 3D model of the structural skeleton
  • Visualization of the structural elements

 

Downloads

 

    Time and cost schedule of a building project

 

    By using the ÅÑÔÅÊ_EN.xls spreadsheet and following the instructions you can enter:

  • The prices of the materials, as well as the prices of labor and machinery hire, holding in your region.
  • General specifications (plot covered area, built-up area) of a building project.
  • he number of workers and machines that you can devote for the production.

    The spreadsheet calculates:

  • The production cost of the structural skeletonincluding materials, labor, stair construction and pipework installation, analyzed in absolute values and percentage according to types of structural elements, materials and construction works.
  • The duration of the production process, analyzed by construction work, as well as a time scheduling diagram.

    Besides the production infrastructure reported in the spreadsheet, bars made of structural steel should be used as molds for the production of structural elements. The bars have an L-shaped cross section, weight  20 kg per running meter, while their total length should be equal to the length of the outline of a typical floor. Their price is not included in the price of the building project, as the bars are reusable. The price of the bars for the example case study of the ERTEK system is close to 1000€ if the price of structural steel is 600€ / tn.

 

    3D Model of the structural skeleton

 

    The file ERTEK-3D.dwg (AutoCAD, version 2000 or later) includes the 3D model of an indicative construction of the structural skeleton. You can download the file and experiment by either modifying the model or creating your own ERTEK constructions.
    The model is structured by 3 blocks: SLAB?SQR?3D (square floor slab unit), SLAB?TRI?3D (triangular floor slab unit) and COLUMN-3D (column).Each block includes "points" (AutoCAD entities) at the 3D grid's vertices respective to the joints. This makes it easy either to transpose, or to copy, or to rotate any structural element by using the "Node" object snap. Besides, you can use "grips" as they also correspond to the 3D grid's vertices.
Have a look on the Named Views "PERSPECTIVE FROM THE GROUND" and "BIRD EYE VIEW".
Use the Layout either to see or to modify different representations of the model.

 

    Visualization of the structural elements

 

Column.jpg
ERTEK column. The concrete is represented as transparent so that the positioning of the armature is revealed.

4-Slabs.jpg
Each 3.60/3.60m slab unit can be sustained by three columns. This makes possible to construct unified 7.20/7.20m rooms without a column at the middle.

4-Column.jpg
The combination of four columns results in a composite column that includes a channel appropriate to host pipework

Sample_Skeleton.jpg
A sample ÅÑÔÅÊ structural skeleton. The steel joints will not be visible in the final form of the skeleton as they are covered during the concrete casting.

Pre_Slab.jpg
The Pre-slab consists of trusses (Filigran) welded to steel joints, while the lower part of both trusses and joints is embodied in a thin layer of concrete reinforced by wire mesh.

Endodapedia.jpg
Underfloor Heating/Cooling routed through the channel formed by the columns.

Apoxeteysh_01.jpg, Apoxeteysh_02.jpg, Apoxeteysh_03.jpg
Sewage pipes routed through the structural skeleton. In phase 01 the pipes are installed in the already assembled pre-slabs, in phase 02 expanded polyurethane is positioned, while phase 03 includes positioning of wire mesh and concrete casting.

Fnd_Unit.jpg
The Foundation Unit consists of trusses (Filigran) welded to steel joints. This construction is positioned upside-down on the screed, then is connected with other similar units. Concrete casting, which succeeds, concludes the construction of the unified foundation slab.

Fnd_Units.jpg
Foundation Units assembled on the screed, ready for the concrete casting.

Full_Skeleton.jpg
Structural elements assembled within the structural skeleton, ready for the concrete casting. The structure relating foundation units, columns, pre-slabs, as well as a sample stair unit is presented. Actually the stair's concrete casting is combined with the floor's concrete casting.

Node.jpg
Steel joint of either a pre-slab or a foundation unit

Node_Plus.jpg
A corner of a pre-slab. The steel joint, welded with the trusses, as well as the reinforced concrete layer are presented.