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Insulation against vibration

LASTO®S safety pin

LASTO®TRELA

Impact noise caused by footsteps is a specific form ofstructurally transmitted noise. It is radiated through the airover a broad area from solid structural elements, and oftencauses unwanted noise emissions in the stairwells ofresidential and office buildings. LASTO®TRELA staircasebearings have proved capable of suppressing this noiseeffectively if applied to the stairs. The LASTO®bi-trapezoidal core that they contain achieves a 93%insulating effect at 100Hz excitation and a reduction of upto 28dB in impact noise.LASTO®TRELA has a special cross-section with lowerdynamic stiffness than a homogeneous bearing material.Long-term dynamic response is significantly better thanthat of composite materials, and the full function isretained throughout the building’s life-cycle.

The principle

LASTO®TRELA is used for prefabricated stairs andpedestals in various dimensions and patterns.LASTO®ISOTRITT, also available from us, is suitable forinstallation in riser walls, or for less severe loads, theLASTO®S pin.

Application areas

Highly effective, noise-absorbing staircase bearings,for insertion between staircases and their pedestals.

Installation on pedestals

Core: LASTO®bi-trapezoidal insulation

2 Designations and technical data

Description UnitType I/L/Z …/10 Type I/L/Z …/20

thickness a = 10mm thickness a = 20mm

Lowest vertical material frequenzy of bi-trapezoidamaterial under pressure (max. applied load)

l f0 in Hz 27 19

Impact noise improvement acc. toDIN 52210 Part 4 ∆LW in dB 23 28

Compression mm approx. 2.5 approx. 5.5

Insulating effect % 87 93

a = 10 or 20mm / b = 10mma = 10 or 20mm a = 10 or 20mm / b = 10mm

Cross-section - Type I Cross-section - Type L Cross-section - Type Z

Types, type references and available dimensions

L- 3000 / 20Example

Weight on stair tread3000kg

PatternL

Thickness of insulating corea = 20mm

Type IType LType Z( )

See drawings above

10mm : ∆LW = 23 dB20mm : ∆LW = 28 dB( )

See table below

Type

Type references

Technical data

Construction of staircase bearing

Insulating core: bi-trapezoidal bearing

Filler: PE foam

Cover: polystyrene film

We supply the following standard versions:Standard length: 1.25m (other lengths on request)Standard heights: 10 or 20mm (15mm also available on request)In-situ cast concrete stairs: order bearing with coverVersions in fire resistance categories F90 or F120 can be supplied

Versions

Product programme and installation 3

Type Designation Bearing thickness

Overall weight of stairs Type Designation Bearing

thicknessOverall weight

of stairs

[mm] [kg] [mm] [kg]

I-1500/10

I-1500/20I pattern

10

20

1000-1500

1000-1500I-3500/10I-3500/20

I pattern1020

3001-35003001-3500

L-1500/10

L-1500/20L pattern

10

20

1000-1500

1000-1500L-3500/10L-3500/20

L pattern1020

3001-35003001-3500

Z-1500/10

Z-1500/20Z pattern

10

20

1000-1500

1000-1500Z-3500/10Z-3500/20

Z pattern1020

3001-35003001-3500

I-2000/10

I-2000/20I pattern

10

20

1501-2000

1501-2000I-4000/10I-4000/20

I pattern1020

3501-40003501-4000

L-2000/10

L-2000/20L pattern

10

20

1501-2000

1501-2000L-4000/10L-4000/20

L pattern1020

3501-40003501-4000

Z-2000/10

Z-2000/20Z pattern

10

20

1501-2000

1501-2000Z-4000/10Z-4000/20

Z pattern1020

3501-40003501-4000

I-2500/10

I-2500/20I pattern

10

20

2001-2500

2001-2500I-4500/10I-4500/20

I pattern1020

4001-45004001-4500

L-2500/10

L-2500/20L pattern

10

20

2001-2500

2001-2500L-4500/10L-4500/20

L pattern1020

4001-45004001-4500

Z-2500/10

Z-2500/20Z pattern

10

20

2001-2500

2001-2500Z-4500/10Z-4500/20

Z pattern1020

4001-45004001-4500

I-3000/10

I-3000/20I pattern

10

20

2501-3000

2501-3000I-5000/10I-5000/20

I pattern1020

4501-50004501-5000

L-3000/10

L-3000/20L pattern

10

20

2501-3000

2501-3000L-5000/10L-5000/20

L pattern1020

4501-50004501-5000

Z-3000/10

Z-3000/20Z pattern

10

20

2501-3000

2501-3000Z-5000/10Z-5000/20

Z pattern1020

4501-50004501-5000

Staircase bearings for stair weights above 5,000 kg are available on request.

LASTO®TRELA staircase bearings are supplied ready for installation andmust not be opened.The staircase bearing must rest on a flat surface; failing this, a smoothmortar surface must be applied first.If the staircase bearing is applied previously to prefabricated stairs, werecommend the use of our installation tape.If the stairs are of concrete cast in situ, the intervening spaces and jointgaps of the LASTO®TRELA staircase bearings should be filled andcovered to prevent concrete from entering.A rigid connection must be avoided, since the spring action of the bearingmust always be maintained.

Installation procedure

Dimensions and weights

Laying stairs on LASTO®TRELA

4 Text for tenders, references

CSS, Lucerne Covered stream, Hunzenschwil Pilatus Market, KriensAare Park, Aarau

Text for tenders

References

Product programme

LASTO®TRELASupply and expert installation of impact noise-insulatingstaircase bearings to isolate staircase and pedestals.Impact noise improvement Δ Lw = 28dBInsulating effect: 93%

Type: LASTO-TRELA Z-2000/20Weight of stairs: 2000kgWidth of stairs: 125cmDimension A: 150mmDimension B: 120mmDimension C: 120mmSupplier: mageba sa

8180 Bülach, SwitzerlandTel.: +41-44-872 40 50Fax: +41-44-872 40 59E-mail: hochbau@mageba.chwww.mageba.ch

LASTO®S safety pinSupply and installation of 20mm diameter safety pins, length300mm, in 1.4462 stainless steel, with vulcanised-onelastomer cover including sleeveImpact noise improvement Δ Lw = 27dB

Type: LASTO S pinSupplier: mageba sa

8180 Bülach, SwitzerlandTel.: +41-44-872 40 50Fax: +41-44-872 40 59E-mail: hochbau@mageba.chwww.mageba.ch

VibrationsuppressionSpecial products

TENSA&MIGUAexpansion joints

LASTObearings

- Sliding and deformation bearings

- Noise absorbing bearings- Wall and ceiling bearings- Sliding foils- Separator bearings- Sliding bearings- Elastomeric bearings- Compact core bearings

- LASTO ISOBLOCK vibration insulation bearings

- CALENBERG vibration insulation bearings

- Staircase and pedestal bearings

- Cantilever plate connections

- Expansion joint strips- Sealing plates- Proofmate FD system

- ACME profiles- NEOFERMA profiles- TENSA INDOOR- TENSA GRIP Silent- MIGUA aluminium

profiles- MIGUA stainless steel

profiles- MIGUA shrinkage

joint profiles- MIGUA heavy-duty

profiles

mageba (Shanghai) Ltd.No.388 BeiHuan RoadWuQiao Town, FengXianShanghai (201402), ChinaTel.: +86-21-5740 7635Fax: +86-21-5740 7636info@mageba.cn

Version 2007.01

mageba saSolistrasse 688180 BülachSwitzerlandTel.: +41-44-872 40 50Fax: +41-44-872 40 59info@mageba.ch

mageba gmbhHans-Böckler-Str. 1237170 UslarGermanyTel.: +49-5571-9256-0Fax: +49-5571-9256-56uslar@mageba.ch

mageba gmbh Seglerweg 16972 FussachAustriaTel.: +43-5578-75593Fax: +43-5578-73348oesterreich@mageba.ch

mageba saRte. de Montheron 8D1053 Cugy VDSwitzerlandTel.: +41-21-731-0710Fax: +41-21-731-0711suisse@mageba.ch

mageba gmbh Steinbeisstrasse 4073730 Esslingen a.N.GermanyTel.: +49-711-758844-0Fax: +49-711-758844-56stuttgart@mageba.ch