PRESENTATION GABRIC SAZEH TABA

PRESENTATION
GABRIC SAZEH TABA
GST – Composite Permanent framework
system
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The development of the patented GS composite formwork system began
back in the early 1980ies in Austria. Up to this day it has been implemented
hundreds of housing projects, hotels, restaurants, business and industrial
buildings, leisure facilities and social institutions all over the world by using
this technology.
GST System technology
The patented GST-System is based upon the principle of permanent formwork,
where the formwork stays in the object after all works on site. The casings of the
GST system are made by 24mm thick cement bonded particle boards (CBPB) or
Fiber Cement Board, the boards are assembled in the GST-factory in one
finished item. Prior to joining the boards the reinforcement steel is placed
according to the project in the panel. To join the plates a special patented steel
profiles are used which are attached to the boards with special steel bolts.
Application of aforementioned profiles ensures even panel thickness and
admission of pressure until complete concrete hardening has occurred.
The wall and slab elements are acting together as composite shell they will be
assembled together on site and will finally be poured with concrete (self
compacting concrete) to get their final stability. The cement board remains from
both sides in the building as permanent formwork with high quality pre
finishing.
This system is used for walls, ceilings, stairs and other special element creation.
Constructing with GST system retains all advantages of reinforced concrete
panel construction
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High resistance against pressure
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High resistance to the tensile strength
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High resistance to dynamic loads
At the same time the benefits of wooden buildings are not lost:

Necessary favorable micro climate for living
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Smooth surface temperature of the cement board.
GST System advantages compared with
traditional building methods
1. Short construction time
The GST system requires very short times for erecting raw superstructures. The
simple and effective assembly of the panels on site and the omitting of strikingout the frame work and basic-plaster work including dry-out periods, will
shorten the process time on site down to 50% compared with traditional
systems. Also finishing works can start in relatively short period of time after
concrete has dried out. Assembly time of Multi-storey building of one floor of
700-800 m2 for 5 people worker team is one week.
2. High quality
The assembly quality and accuracy is measured in mm. Before painting or
wallpaper adhesion, internal wall finishes require only minimal internal seam
finish. Exterior walls require minimal catch-adhesive consumption for heat
isolation strengthening. As the system offers high level of exactness, the final
object will be accurate the security risks are reduced to minimum, therefore
significant reduction of insurance costs is possible.
3. Size variations and opportunities of large-scale coverage
By using GST system there is great potential to create a specific panel sizes
designed specifically for each object. The system allows reducing the need for
columns.
4. Correction of communications
If the customer desire requires changing an existing electrical location, there is
possibility of adjustments before concrete – filling, because everything is
transparent and adjustable.
5. Little space requirements
There are advantages to build in urban, density populated areas panels will be
delivered and assembled just in time, no additional space needed, for storing
the materials or specific building equipment.
GST System advantages compared with
traditional building methods
6. Cement board functions depending on the season
The boards act like a jacket and protect the concrete against frost in winter or
against too quick dry out in summer. The reduction of working time in winter
leads to cost reductions.
7. Concrete has high stability and sound insulation
Due to the fact that the whole building is monolithic concrete casting, such a
system construction is regarded as stable and reliable in earthquake regions.
8. Low load capacity handling equipment necessity
Taking into account that in the building site will be moved and assembled empty
panels, the freight moving equipment can be with low carrying capacity, as well
as costs will be reduced because of relatively short mounting time.
9. Complete absence of construction waste after assembling
Cleaning and waste will be minimized significantly as well, therefore the costs for
waste management will be close to zero.
10. Low cost of transportation from the factory to the building site, due to the small
cargo weight
One track is for up to 100m2 (building useful area).
11. Building conditions suits nearly all weather conditions
Due to the fact that 60% of the entire processes take place inside the factory
therefore into secure surrounding, on building site there is only mounting and
concreting. Consequently, the reduced dependence on weather conditions and
at the same time costs.
12. The most important is the fact that all the aforementioned advantages are
significantly reducing the total construction costs and completion times.
GST system advantages compared with
reinforced concrete building methods
1.
2.
3.
4.
5.
GST-System-panel light weight allows the saving of transport and assembly
costs. One track is for up to 100m² (building useful area).
The concreting will be done on site; therefore GST System will not have any
joints between the panels, compared with the finished panel assembly.
The walls and the slabs will be poured together and create a massive
concrete structure.
If there is a need to reduce the size of a room during the construction, than
it is very easy to transform the current panel in to desired size.
Communication corrections. If the customer desires to change an existing
electrical location, there are possible all types of corrections, before
concrete filling. From the top everything is transparent and adjustable.
GST wall system technical description
The patented GST-system is based upon the principle of permanent formwork,
where the formwork stays in the object after all works on site. The shells of the
GST- system are formed by 24 mm thick cement bonded particle boards or fiber
cement board. They will be assembled in the GST - factory in several processes in
an industrial way. As the connecting elements only self- developed steel clips
(spacers) will be utilized. The spacers will be fixed with galvanized screws on the
inner face of the Board without any appearance on the visible side. All the
connections between the single GST- walls will be created as an 8 cm wide and 12mm deep mill or a 12 mm wide and 6 mm deep V- shaped joint. On building site
the joints should be treated according to supplier’s instructions. All GST – Wall
elements will be fully manufactured and fitted with lifting units and placed in
special transportation cases.
GST wall system technical description
GST – Walls can be used for vertical or
pitched use on site
All needed openings (doors windows,
etc.) and wiring will be built in at factory
according to the project.
Reinforcement will be built in at factory
according to drawings or requirement for
each project
Standard Wall types:
1.
D=17,5cm (d=12,7cm);
2.
D=20,0cm (d=15,2cm);
3.
D=21,5cm (d=16,7cm);
4.
D=23,0cm (d=18,2cm);
5.
D=25,0cm (d=20,2cm);
6.
D=30,0cm (d=25,2cm).
The overall thickness of the GST – Wall D
(measurement in architectural drawings)
element will be given by the thickness of
the concrete core d and the thickness of
the cement board on each side.
Other wall thicknesses can be
manufactured after request and
reconfirmation.
GST – Slabs technical description
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

The GST-Slab elements type HT consists from cement board (thickness
24mm) and special cap - profiles for horizontal or pitched slab areas. The
single slab – elements will be assembled in factory to packages of
maximum size 2,4m x 6,00 m
The cap-profiles will be screwed on top of the cement board with screws
5/24mm in a distance of 40,0 cm. Height of cap – profile is 50 mm, total
height of GST-slab-element is 75mm. The reinforcement bars size is
calculated according to following calculation: 3,93cm2/m
The bottom surface of the slab must be treated according to supplier’s
instruction
GST system special element description
With the GST formwork solution all elements of load-bearing structure can be
provided. In addition to main construction elements we can offer:
 GST fringe boards
 GST column elements (rectangular or quadratic) based upon structural
analysis, reinforcement will be fitted into the GST element in factory
 GST beams elements (rectangular or quadratic) based upon structural analysis,
reinforcement will be fitted into the GST element in factory
 GST stairs elements - straight flights and landings including fringes to form
risers, reinforcement will be fitted into the GST element in factory
 GST capitels (shear heads) – to raise resistance against punching of slabs
 GST window boards – solution to provide the possibility to place a window in
the thermal insulation area
 GST wall heating – a special pipes (hot water) built into the wall panels, creating
a wall heating elements (including all necessary taps and connections) fully
compliant to thermal requirements
 GST corners and T-crossing details – providing the possibility to build in
reinforcement on site
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Thank you for your attention!
Gabric Sazeh Taba
Ph.: +98-21-88677917¬20
Fax: +98-21-88677921
Email: Info@gst-co.net
Web site: www.gst-co.net