Reston Spherical Bearings Catalog

7/25/2019 Reston Spherical Bearings Catalog

http://slidepdf.com/reader/full/reston-spherical-bearings-catalog 1/8

www.mageba.ch

Bearings

High quality sliding materials

High quality certified PTFE (with grease pockets)

High quality controlled silicone grease

Sliding plate of austenitic high-grade stainless steel

Spherical parts coated with hard chrome or nickel

European Technical Approval

Manufactured in accordance with the new European

standard EN 1337-7

Use of high quality certified materials

Guaranteed quality

Quality Management System in accordance with ISO

9001: 2000 and EN 729-2

Certified in accordance with DIN 18800-7

Properties

Principle

mageba RESTON ®

SPHERICAL bearings are designed totransmit vertical forces while permitting large rotations by

means of matching rounded upper and lower parts.

Longitudinal and transverse movements of the

superstructure can be facilitated as appropriate by a flat

sliding interface between the top of the rounded element

and a sliding plate, or alternatively, side-mounted guide

bars can be provided to transmit horizontal forces.

Cross-section of spherical bearing

anchor plates dowels

RESTON ® SPHERICAL (PTFE)

The spherical bearing with PTFE sliding discs, in accordance

with EN 1337, facilitates large rotations and medium to large

loads.

PTFE sliding plate

Chromed spherical surface

- Certified with CE-label.

- Design in accordancewith EN 1337-7.

- Certified with CE-label.

- Design in accordance

with EN 1337-7.EN 1337-5

0672-BPR-001



Area of application

RESTON®SPHERICAL bearings are particularly suitable for:

• Bridges requiring high degree of rotation at supports

• Medium to high loads

• Bridges in extremely cold locations (temperatures below -20 °C)

The bearing and how it works

Free rotation is facilitated by the concave lower element, which is lined with a

PTFE sliding disc. A convex rounded counterpart forms the other half of the

sliding pairing, and with its polished hard chrome (or nickel) surface, liesalmost frictionless on top of the concave lower element.

In the case of a guided sliding or a free sliding bearing, a PTFE sliding disc is

provided on top of the rounded element. This, in conjunction with an upper

sliding plate, permits the bridge to move in either the specified direction (as

limited by guide bars) or freely. In order to keep frictional resistance to a

minimum, a polished austenitic stainless steel sheet is applied to the underside

of the sliding plate

RESTON®SPHERICAL bearings are technically approved. Certification of

approval (Z-16.4-314) by the Deutsche Institut für Bautechnik in Berlin is

available upon request.

Testing and approvals

The following standard corrosion protection is used for all exposed steel

components:

• SA 3 sandblasting• 50µm zinc metal spray galvanising

• Two top coats, each 40µm

Alternative corrosion protection can be provided upon request

Corrosion protection

2 Product Features

The principal components of the spherical bearing and materials used:• Steel components: Grade S355

• PTFE: high quality certified, white PTFE with grease pockets

• Sliding plate: welded austenitic stainless steel sheet

• Coating of rounded part: hard chrome or nickel

• Lubricant: high quality certified silicone grease

Materials and quality control

Additional equipment

All mageba RESTON®SPHERICAL bearings are equipped with a type plate

(containing key information) as standard.

Guided sliding and free sliding spherical bearings can be equipped with an

optional movement scale.

Upon request spherical bearings can be fitted with dust protection or a bellows

(folded sheet) (as prescribed by the German Approval).

Application of silicone grease to PTFE

Sliding plate of a spherical bearing

Spray galvanising

Optional movement scale



Type Loads Dimensions of the bearing Weight

& Vertical

Vmax [kN]

Horizontal

Hmax [kN]

H

[mm]

A

[mm]

B

[mm]Size [kg]

KF 1 490 49 110 265 265 50

KF 2 1‘080 108 110 305 305 70

KF 3 1‘940 194 115 365 365 100

KF 4 3‘060 306 115 425 425 130

KF 5 4‘430 443 120 490 490 170

KF 6 6‘090 609 125 555 555 230KF 7 7‘970 797 135 650 650 335

KF 8 10‘140 1‘014 145 715 715 440

KF 9 12‘580 1‘258 160 790 790 595

KF 10 15‘230 1‘523 170 870 870 760

KF 11 18‘190 1‘819 180 955 955 970

KF 12 21‘400 2‘140 195 1‘025 1‘025 1‘230

KF 13 24‘820 2‘482 205 1‘105 1‘105 1‘485

KF 14 28‘560 2‘856 220 1‘180 1‘180 1‘820

KF 15 32‘550 3‘255 245 1‘260 1‘260 2‘285

KF 16 36‘750 3‘675 275 1‘345 1‘345 2‘775

KF 17 41‘260 4‘126 300 1‘435 1‘435 3‘300

KF 18 46‘040 4‘604 335 1‘530 1‘530 3‘855

KF 19 51‘000 5‘100 365 1‘630 1‘630 4‘435

KF 20 56‘290 5‘629 400 1‘735 1‘735 5‘050

The table is based on a permissible

eccentric pressure of 32 N/mm2

(C35 concrete quality) on the connecting

concrete.

The bearing dimensions given in the table

are valid for:

• Vmin = 0.5*Vmax

• HRes, max = 0.1*Vmax

• Angle of rotation tan φ = ±0.01

Dimensions and weights for different

permissible pressure on the concrete and

extraordinary loading conditions can be

calculated upon request.

Fixed Bearing Type KF 3

RESTON®SPHERICAL Type KF (fixed) bearings allow free rotation and the

transmission of horizontal forces from any direction.

By placing movement prevention bars on the upper support plate, the fixed

bearing can transmit both longitudinal and transverse horizontal forces from

the upper to the lower support structure.

In order to keep the spherical part free of horizontal forces, fixed bearings are

also provided with an additional sliding surface between the rounded element

and the upper plate.

Fixed spherical bearings Type KF

Anchoring:

Bearings can be equipped with anchor plates upon request. This requires additional space and is not taken into consideration in the table.

Loads and dimensions

Assembly of a spherical bearing



The table is based on a permissibleeccentric pressure of 32 N/mm2


concrete.

The bearing measurements entered in the

table are valid for:

• Vmin = 0.5*Vmax

• HRes, max = 0.1*Vmax


• Longitudinal movement ±100mm





Anchoring:


RESTON®SPHERICAL Type KE (guided sliding) bearings allow the free

rotation of the superstructure as well as guided sliding movement in one

direction.

The guided sliding bearing can transmit horizontal forces from the upper to

lower support structure via guide bars on the sliding plate.

In order to keep the frictional resistance during movement to a minimum, the

guide bars also use materials suitable for sliding.

Guided sliding spherical bearings Type KE

4 Guided Sliding Bearing Type KE

KE 1 520 52 180 300 470 125 95

KE 2 1‘130 113 230 350 515 125 125

KE 3 2‘050 205 305 425 580 125 135

KE 4 3‘230 323 360 480 645 125 225

KE 5 4‘680 468 435 540 720 135 310

KE 6 6‘430 643 505 605 790 145 420KE 7 8‘420 842 575 690 860 155 550

KE 8 10‘710 1‘071 645 755 935 170 725

KE 9 13‘280 1‘328 720 815 1‘015 185 960

KE 10 16‘080 1‘608 790 900 1‘090 185 1‘165

KE 11 19‘200 1‘920 860 965 1‘165 200 1‘445

KE 12 22‘590 2‘259 930 1‘045 1‘245 210 1‘765

KE 13 26‘200 2‘620 1‘005 1‘125 1‘325 215 2‘100

KE 14 30‘140 3‘014 1‘070 1‘205 1‘405 235 2‘615

KE 15 34‘360 3‘436 1‘135 1‘285 1‘485 260 3‘200

KE 16 38‘790 3‘879 1‘200 1‘375 1‘575 285 3‘820

KE 17 43‘550 4‘355 1‘275 1‘470 1‘670 315 4‘480

KE 18 48‘590 4‘859 1‘350 1‘570 1‘770 345 5‘180

KE 19 53‘830 5‘383 1‘425 1‘675 1‘875 375 5‘910

KE 20 59‘420 5‘942 1‘510 1‘790 1‘990 410 6‘685

Type

&

Size

Loads Dimensions of the bearing Weight

[kg]

Vertical

Vmax [kN]

Horizontal

Hmax [kN]

A

[mm]

B

[mm]

L

[mm]

H

[mm]


Guided sliding spherical bearing



Free Sliding Bearing Type KA 5

Free sliding spherical bearings Type KA

The table is based on a permissibleeccentric pressure of 32 N/mm2


concrete.

The bearing measurements entered in the

table are valid for:

• Vmin = 0.5*Vmax


• Longitudinal movement ±100mm

• Transverse movement ±20mm





RESTON®SPHERICAL Type KA (free sliding) bearings enable the free

rotation of the superstructure as well as free sliding movement.

Since this design can accommodate neither stop units nor guide bars, the free

sliding bearing is unable to transmit horizontal forces.

Anchoring:


Type

&

Size

Loads [kN] Dimensions of the bearing Weight

Vertical

Vmax [kN]

A

[mm]

B

[mm]

L

[mm]

H

[mm] [kg]

KA 1 520 175 245 460 105 65

KA 2 1’130 220 290 505 110 85

KA 3 2’050 285 355 565 115 95

KA 4 3’230 350 430 635 115 165

KA 5 4’680 415 505 700 125 225

KA 6 6’430 485 585 770 125 300KA 7 8’420 560 665 845 135 410

KA 8 10’710 625 740 915 145 535

KA 9 13’280 695 820 985 155 700

KA 10 16’080 770 900 1‘065 160 870

KA 11 19’200 835 975 1‘135 175 1‘115

KA 12 22’590 905 1‘055 1‘215 195 1‘430

KA 13 26’200 975 1‘135 1‘295 120 1‘705

KA 14 30’140 1‘045 1‘215 1‘375 220 2‘135

KA 15 34’360 1‘105 1‘295 1‘455 250 2‘655

KA 16 38’790 1‘175 1‘385 1‘545 285 3‘200

KA 17 43’550 1‘245 1‘480 1‘640 320 3‘785

KA 18 48’590 1‘320 1‘580 1‘740 355 4‘405

KA 19 53’830 1‘395 1‘685 1‘845 395 5‘050

KA 20 59’420 1‘480 1‘800 1‘960 440 5‘735


Free sliding spherical bearing



When the bearing is installed the parallelism of the support plates must be

checked, as well as the pre-setting values and the mounting direction /

location.

After the successful installation of the bearing, transportation fittings must be

removed immediately to avoid damage to the bearing.

Spherical bearings should only be installed under the guidance of suitablytrained professionals.

Detailed assembly and installation instructions can be provided upon request.

Installation

Factory assembly and transportation

The spherical bearings are assembled as a whole in the factory, adjusted to

the pre-setting values, labelled and then packed ready for transportation.

mageba spherical bearings are essentially maintenance free. Therefore, it is

sufficient for checks to be carried out during the regular bridge inspections.

Instructions for Inspections are available upon request.

The spherical bearing has been designed in such a way that all significant

parts can be exchanged as necessary without damaging the adjacent parts of

the bridge.

The customer must ensure that there is free access to the bearing and also

sufficient space to place hydraulic jacks in order to lift the bridge structure.

Maintenance

6 Assembly and Installation

Proof of quality

RESTON®SPHERICAL bearings have proven themselves under heavy traffic

conditions to be extremely durable. For four decades they have been usedsuccessfully throughout the world.

Qualified staff and the most up-to-date manufacturing facilities as well as

consistent quality control procedures are the fundamental ingredients that

ensure the high quality standards of mageba products.

mageba has been ISO 9001-2000 and EN 729-2 certified since 1991, and is

also certified in accordance with DIN 18800-7.

Upon request vertical, horizontal and friction tests can be carried out on thespherical bearing.

mageba has purpose-built its own testing facility for bridge bearings. It can

apply vertical force of up to 100,000 kN, making it the largest test rig in the

world.

Testing

Welding in the factory

External supervision and control

Bearing testing facility



Quotations and Orders 7

Requests for quotations

Wherever possible when making a quote request, the most important design

criteria of the bearing should be submitted, thus allowing us to give you the

ideal choice of bearings and ensure best value for money.

In addition to the information already supplied, the following details are also

necessary when placing an order:

• Layout drawing of the structure

• Breakdown of all movements

• Pre-setting values

Work begins once the customer has approved and returned the documents

confirming the pre-setting values.

Delivery time is kept to a minimum thanks to an efficient order processing

system and modern manufacturing methods.

Placing of orders

Quotations

An indicative quote can be made based on the classification and number of

bearings needed. For a more precise quotation we would require the following

information:

• Maximum, minimum and permanent vertical loads (with reference to the

relevant standard (DIN, EN, BS))

• Horizontal force on the bridge in both longitudinal and transverse directions

• Most adverse load combination of maximum horizontal force and minimum

vertical load

• Movement of the bridge in longitudinal and transverse directions• Rotation of the bridge in longitudinal and transverse directions

• Need for anchor plates, dust protection, etc.

• Concrete quality of the columns, abutments and superstructure

• General structural details (concrete or steel bridge, space available for the

bridge bearings etc.)

An exact list of the necessary information is defined in the new European

Bearing Standard, EN1337, Part 1. You can find a checklist based on this

Standard, outlining the necessary information, on our website

www.mageba.ch.

• mageba RESTON ® SPHERICAL bearings have been used successfully for over four decades

• RESTON ® SPHERICAL bearings are certified in many countries

• External quality control conducted by independent institute

• Quality Assurance certification to ISO 9001:2000 and EN 729-2

• Welding certification in accordance with DIN 18800-7

• Use of high quality certified materials

• Design according to EC 3, BS 5400, DIN 18800, SIA 161 etc.

• Construction strictly according to EN 1337

Key points about RESTON ® SPHERICAL bearings according to EN 1337-7:

Irtysh River Bridge, Kazakhstan

Equipped with 20 mageba Spherical Bearings capable of resistingvertical loads of up to 10,500 kN and horizontal forces of 500 kN

Spherical bearings in production



8 Product range and references

Worldwide references

Services- Inspections

- Tests

- Installations

- Refurbishments

- Cleaning

- Remote monitoring

Shock Absorbers- Hydraulic Shock

Absorbers

- Spring Dampers

Expansion Joints- Single Gap Joints

- Modular Expansion

Joints

- Sliding Finger Joints

- Cantilever Finger Joints

- Mat Joints

- Railway Joints

- Architectural Joints

Bridge Bearings- Pot Bearings

- Elastomeric Bearings

- Spherical Bearings

- Earthquake Bearings

- ILM-Bearings- Special Bearings

- Rocker Bearings

More information on mageba and our products can be found on www.mageba.ch.

bridges linking people – worldwide ®

mageba saSolistrasse 688180 Bülach

Switzerland

Tel.: +41-44-872 40 50

Fax: +41-44-872 40 59

[email protected]

Version 2008.02

mageba Bridge Products Pvt. Ltd.

Shanghai, China

Tel.: +86-21-5740 7635

Fax: +86-21-5740 7636

[email protected]

mageba Bridge Products (Pvt.) Ltd.Kolkata, IndiaTel.: +91-33-22900250 to -253

Fax: +91-33-22900254

[email protected]

mageba gmbhUslar, GermanyTel.: +49-5571-9256-0

Fax: +49-5571-9256-56

[email protected]

mageba gmbhFussach, AustriaTel.: +43-5578-75593

Fax: +43-5578-73348

[email protected]

mageba saCugy VD, Switzerland

Tel.: +41-21-731-0710

Fax: [email protected]

mageba gmbhEsslingen a.N., Germany

Tel.: +49-711-758844-0

Fax: [email protected]

Documents

Reston Spherical Bearings Catalog