1

Tvívíðar holplöturTvívíðar holplötur

KúluplöturKúluplötur

2

Byltingarkennd Byltingarkennd nýjung !nýjung !

……sem á 10 ára afmæli í ár !!!

Byggingargeirinn er frekar Byggingargeirinn er frekar svifaseinn…svifaseinn…

3

UppbyggingUppbygging

Járnbending í efri brún

Loftfylltar plastkúlur

Járnbending í neðri brún

Steyptur botn

4

ÞversniðÞversnið

5

Hvers vegna kúlur?Hvers vegna kúlur?

Holplötur eru með holrými í langáttina... ...og geta því aðeins borið í eina átt Kúlu-holrými gerir plötunni kleift að

bera í tvær áttir... ...eins og staðsteyptar plötur

En vega 30-45% minna

6

Hvers vegna kúluplötur?Hvers vegna kúluplötur?

Hægt er að auka haflengdir Lengra bil á milli súlna / bita / veggja Hentar vel sem súlu-plötu gólf, án bita Heildarmannvirkið léttist

Hentar vel á jarðskjálftasvæðum

7

Áhrif kúlnannaÁhrif kúlnannaGegnheil

plata

Hlutfallstölur (sem % af gegnheilli plötu)Mögulegt notálag

25

Eiginþungi 75

Eiginþungi/mögulegt notálag 3:1

Samanburður (gegnheil plata með 100 %)Mögulegt notálag

100

Eiginþungi100

Nýtni steypunnar

100

Notálag (viðbótarálag)( )

Eiginþungi( )

KúluplataKúluplataSama þykkt

50

50

1:1

200

65

300

KúluplataKúluplataSama notálag

25

40

1.5:1

100

50

200

8

Framleiðsla í verksmiðjuFramleiðsla í verksmiðju

Járn í efri og neðri brún Kúlur 5 cm þykkur steyptur botn (Filigran) Ekið á byggingarstað

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Á byggingarstaðÁ byggingarstað

Hefðbundin flekamót óþörf Einungis stálstoðir og trébitar Einingar hífðar á sinn stað Skeytijárnum komið fyrir Efri hluti plötu steyptur

Árangur:Árangur:Sparar tíma og fjármuni

10

Nútíð og framtíðNútíð og framtíð

Sama útlit, en burðarkerfin geta verið ólík

Steypt á staðnum

Steyptar einingar

Kúluplötur?

BubbleDeck

Plastic - balls

Reinforced welded mesh

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Myndband...Myndband...

12

Idea & EffectIdea & Effect

The bubble-technique:

Linking air-bubbles directly together with the reinforcement

The concrete is placed exactly where it provides the greatest effect

Result a distinct minimized construction - up to 100 % increase in effect

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IndustrializationIndustrialization

of the in situ Processof the in situ Process

Normal BubbleDeck - bubble lattice, in situ cast

Normal BubbleDeck - 100% prefabricated element(only small units)

Filigree BubbleDeck - bubble-lattice with precast concrete bottom

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AdvantagesAdvantages

inin Statics Production Carrying out Transportation Safety Ecology Economy Lifetime

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Superior Superior SStaticstatics

throughthrough

Reduced weight of deck Increased strength (relative) Greater span Fewer columns

16

A A pronouncedpronounced RReduction eduction in the in the NNumber of umber of CColumnsolumns

Normal deck BubbleDeck

39 columns 11 columns

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Proposal for Building Proposal for Building aacross Railway Trenchcross Railway Trench

1. with prefab concrete elements1. with prefab concrete elements - - 66 storeys storeys

182. with 2. with BubbleDeck - BubbleDeck - 77 storeys storeys

19

ProductionProductionPlastic and Steel Plastic and Steel aare re ffit for Industrial Productionit for Industrial Production

Greater precision and better protection of quality Fast production - Less storage space

20

CCarrying outarrying out

Less work in situ ; employment of unskilled labour

Easier and more simple erection Light and cheap lift equipment Faster construction time

21

TransportationTransportation

The filigree units offer more square metres and less weight per truckload than normal concrete elements

Possible per truckload 200 - 300 m2 bubble-lattice

Example (per truckload – European standards) :

230 mm deck (element-size 3.0 x 7.2 m) : 300 m2 deckvolume : 60 m3

weight : 6-9 ton

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Other Techniques / SafetyOther Techniques / Safety

Moisture - condensation-safe construction

Fire - fireproof construction

Explosions- explosion-safe if carried out as slab-column construction (no supporting

walls to suppress the airpressure)

Earthquake - safety will benefit significantly alone from the weight reduction

23

EcologyEcology

Savings in resources 1 kg of waste- or recycled plastic replaces 100 kg of concrete.

Yearly savings of 100 mill. tonnes of concrete in Europe.

Less energy consumptionThe use of plastic only requires 1/4 of the energy consumption of the replaced quantity of concrete.

Recycling All components can be used in traditional recycling processes.

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EconomyEconomy

Less time-consuming Industrialization

Large savings in resources(European prices) 1 kg of plastic at a price of 2-2½ $ US

replaces 100 kg of concrete at a price of 4-5 $ US

Savings in subsequent work Rationalization ; minimizing the foundation engineering

Cheaper changes and longer life Flexibility and freedomRepresents up to 30 % improvementof the long-term investment

25

Integrated building parts

( fixed separations )

LifetimeLifetime

Independent building parts

( flexible separations )

100

200

300

Construction + Fill in Installations Construction Fill in Installations

Number of new investments during a period of 300 years :

10 10 20 1 10 20

Years

30 years 15 years 300 years 30 years 15 years

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Use / QualitiesUse / Qualities

The BubbleDeck can be tailored to meet any purpose

Relevant for the greater part of all building constructions

Obvious to replace any solid deck

Advantageous to use instead of one-way hollow deck and

one-way lightweight concrete

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Standard Deck TypesStandard Deck Types

BubbleDeck is produced in 6 standard deck types

The marked standards are recommended

Deck thickness (mm) :

170 230 280 340 390 450

Corresponding span (m) :

5-8 7-10 8-12 9-14 10-16 12-18

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ArgumentsArguments

Why the Technique must Why the Technique must bbe e usedused

The last stage in a natural process The method has been attempted for the past 100 years The technique is considering the future The future and general technical development are

favourable for the product The deck is the most important structural member (basis)

29

AwardsAwardsIn 1999 BubbleDeck received two nominations in Holland

The National Building prize

The Industrial Environmental Prize

The Dutch Environmental Authorities have nominated BubbleDeck to the

European Environmental Prize Year 2000