Brochure e
8
lightweight biaxial strength long span time saving no beams sustainable …cost effective Lightweight Solutions in Concrete flexible layouts it’s in the air ®
description
Light weight RC slab system
Transcript of Brochure e
lightweightbiaxial strengthlong spantime savingno beamssustainable
…cost effective
Lightweight Solutions in Concrete
flexible layouts
it’s in the air
®
The Idea:How does a bird fly?
An essential feature to being able to fly is in the struc-ture of its bones. Bird’s bones have evolved to a high-ly efficient structure. A hard shell and struts formedby multiple cavities, appropriately located give thebone a stability equivalent to solid bones. The resultis efficient structure that has less mass and requiresfewer resources to lift. It’s in the air. A bird flies.
Design principles:Remove the non working dead load, maintain biaxialstrength. In concrete, realise a hard shell with strutsthrough the use of appropriately located cavities for-med by hollow spheres.
– it’s in the air
The company group Cobiax Technologies, with Headquarters in Zug, Switzerland and it’s European subsidiaries, formerly known as BubbleDeck, foundedin 1997 has become the specialist of lightweight biaxial flat slabs in reinforced concrete.The latest development, the cobiax lightweight flat slab, (patent pending) with its modular and flexible features, improves application of the techno- logyand also economy.
Add value to your building and your construction process by using cobiax lightweight flat slab instead of traditional concrete solid slab and other light-weight slabs. Introducing the technology early in the design process yields the most benefits.
Cobiax flat slabBetween upper and lower reinforcement rebar cageswith hollow plastic spheres of recycled polyethylenedisplace concrete that has no structural benefit. Theresult is a floor that weighs up to 35% less than anequivalent solid floor. This can lead to substantialsavings in weight and materials on the building as awhole. When integrated into the whole structuralframe solution Cobiax delivers many benefits andsaves money.
Yields
Added value
Benefits
Substantially improvedlifecycle costs and ecology
Economy EcologyFlexible layouts
Open plan,wide spans without
beams
Up to 50% weightreduction, savingsin materials and
transport, reduction in CO2 emissions
A biaxial designassures
all benefitsof a solid slab
Timesaving
Increasedusage and easychange of use
Value chain of CobiaxBreak into a new dimension of structural options. You can realise a multitude of improvements to buildingconcepts and sustainability.
®
Biaxial
Longer Span – no beams
Weight savings - fewer supportshigh earthquake resistance
Retrofit, change of use
Reduction in construction time
Cobiax
Additional space
Designed with beams
Additional level of car park, 1,150 m2
– performance
Your benefit - the optimum use of cobiax Big5
Larger grids, half the columns, no beams or joists
Actual benefit in % savings when compared to solid flat slab
Concrete in floors 32 %
20 %
20 %
40 %
100 %
35 %
Floor reinforcing steel
Concrete in foundation
Columns
Beams and Joists
Deck construction time
Passiro · Meran, BD Italy
Frankfort · Niederrad, BD Germany
Frankfort · Niederrad, BD Germany
Big5
®
Bridging long spans without beams, carrying large load with slimcolumns because of cobiax system.
– performanceChange of use - Only possible through considerable weight reduction
Cobiax Big5 optimises 34’000 m2 slab surface
Red: ExistingBlue: New Build
Steigerwald · Gerolzhofen, BD Germany
Sandbanks · Poole/Dorset, BD UK
Travel Europe · Stans, BD Austria
Mainova · Frankfort, Germany
®
ROOFTERRACE
Cobiax can be adapted to any layout. Thearrangement of the spheres and the size andshape of the panel are determined by theproject requirements. Cobiax can be usedwith other building techniques such as posttensioning and composite structures.Concrete grade and bulk density can be spe-cified to suit the project requirements.
Interfaces and installation details are similarto traditional concrete details.
– options
In modular, flexible production options
Cage Modulecobiax CBCM
Linked Cage Modulecobiax CBLM
Semi-Precastcobiax CBSP
Precast Elementcobiax CBPE
Post tensioning Installation guide
The delivery options can suit the construction requirements.
The cage module and linked cage modul are suitable for in situ applications with traditional formwork as well as for delivery to indu-strial production facilities. The semi-precast and precast modules are for delivery to site where the benefits of speed of constructionand economy of equipment requiremensts can be realised.
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0.5
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0.1
Load
s [k
N/m
2 ]
Spans [m] with the same slab thickness
4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
cobiax versus solid flat slab
Conc
rete
qua
ntity
[m3 /m
2 ]
Spans [m] with the same imposed load and concrete volume
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
d = deck thicknessdia. = sphere diameter
A d 23.0 cm / dia. 18.0 cm
B d 40.0 cm / dia. 31.5 cm
C d 58.0 cm / dia. 45.0 cm
d = deck thicknessdia.= sphere diameter
d 58.0 cm / dia. 45.0 cm
d 52.0 cm / dia. 40.5 cm
d 45.0 cm / dia. 36.0 cm
d 40.0 cm / dia. 31.5 cm
d 34.0 cm / dia. 27.0 cm
d 28.0 cm / dia. 22.5 cm
d 23.0 cm / dia. 18.0 cm
C
B
A
®
Detached house
Apartment Building
Multi-storey car park
Retail / Industrial
Administration / School / Museum
Hospital / Hotel
Office and high-rise building
Tunnel building
Tamp
ing
Foun
datio
n
Conc
rete a
nd S
teel
Load
-beari
ng w
alls
Cons
tructi
on ti
me
Usag
e
Flexib
ility o
f lay
out
Altern
ative
use
Remo
val
Instal
lation
Beam
s
Colum
ns
Shori
ng p
rops
Fire s
afety
Faça
de su
rface
Earth
quak
e res
istan
ce
Therm
al ma
ss
Sphe
res in
recy
cled
HDPE
CO2
reduc
tion
by sa
ving
on co
ncret
e
Redu
ction
of t
ransp
ort
Energ
y sav
ing
Cobiax is ideally suited for initial use but also offers flexibility for reuseLong span flat deck layouts provide design flexibility for initial use as well as flexibility for change to suit futu-re use. By comparison solid deck is restricted by too much deflection. Till now longer spans could only be achie-ved with post tensioning or the use of beams. This has been associated with high design and construction costs.The cobiax lightweight flat slab is a less expensive alternative to achieve deflection criteria in long span appli-cations. Cobiax also permits more flexibility for the use of the building both in the horizontal as well as thevertical.
Type of building Economic savings potential Environmental aspects
Space
Made-to measure
Rent · Sales PriceSpace is an
irreplaceable resource!
The resource effectiveness leads to R.I.O. Innovation Award 2003Cobiax reduces cost but at the same time makes a major contribution to the environment in concrete whereit’s most important. Cement manufacture is the largest single producer of CO2 emissions worldwide. Cementmanufacture is responsible for around 7% of CO2 emission. Current goals for sustainable development and reduction of CO2 can be effectively met by using cobiax.
The overall evaluation of buildings with cobiax flat slabs leads to decisive yield for the owner.
– economic and sustainable®
Performance of the Cobiax Group:
• Frame Contractors for cobiax lightweight concrete slabs- Added value consulting for owners, architects, engineers and construction companies- Design and detailing of the deck structure- Just-in-time delivery of cobiax modules
• Technology consulting and sales of cobiax range
• International marketing services and licensing business
• Quality management System cobiax QLL 06/2004
• Lightweight flat slab technology development
Most benefit is realised when the cobi-ax technology is incorporated in thedesign at an early stage. Cobiax assistsdesigners to achieve greatest return onthe use of the product.
With this assistance engineers can inde-pendently calculate the floor stress ana-lysis incorporating the advantages ofusing cobiax technology. Cobiax is asolutions driven product. Cobiax canassist the client throughout the projectprocess to achieve superior buildingsusing the most up to date constructiontechniques.
Cobiax – Your partner…
– flat slab technology®
cobiax – your partner
HEADQUARTERS:Switzerland & Cobiax Technologies AG
International Postfach 140Oberallmendstrasse 20ACH-6301 Zug
Phone +41 41 767 00 00Fax +41 41 767 00 09
United Kingdom Cobiax Technologies LtdStudio 4The Cooperage91 Brick LaneGB-London E1 6QL
Phone +44 20 7877 8575Fax +44 20 7375 2759
Germany Cobiax Technologies GmbHHeidelberger Strasse 6-8D-64283 Darmstadt
Phone +49 6151 918 16 00Fax +49 6151 918 16 22
Austria Cobiax Technologies GmbHRotenturmstrasse 27/5A-1010 Wien
Phone +43 1 533 75 82Fax +43 1 533 26 03
Italy Cobiax Technologies s.r.l.Via Julius Durst 6/BI-39042 Bressanone
Phone +39 0472 83 04 04Fax +39 0472 20 74 26
11/
04 C
obiax
®Tra
de M
ark is
regis
tered
and p
atent
pend
ing. A
ll righ
ts res
erved
.
®
®
flexible layouts
it’s in the air
