POT

BEA

RIN

GS

Calle Can Nadal s/n Nave 1-A 08185 Lliça de Val Barcelona – Spain

+34 938 63 42 50mk4@mekano4.comwww.mekano4.com

REF 104-03-01-02

CATEGORY Pot Bearings

VERSION EN-1.0

[POT] POT Bearings Product Description High performance mechanical bearing allowing high vertical and horizontal loads.

Bearings are constituted of 3 main steel elements: Pot [1], Piston [2] and Upper tray [3].

Rotations in both directions are ensured by a elastomeric pad [4] confined by the pot [1] and the piston [2] Displacements in both directions (M Type), one direction (G and T type) or none are ensured by a sliding interphase [SD1] between element [2] and [3]

Uses Bridges (steel and concrete) and any type of civil/Industrial construction

Maximum Vertical Load: (typical pressure >up to 42MPa ULS)

Maximum displacements: unlimited

Maximum rotation: limited to 30 mRad

Advantages High Vertical Loads bearing capacity compared to other bridge bearings such as elastomeric bearings (15 MPa)

Enhanced durability compared to elastomeric bearings (rubber is not fully exposed to environment but confinedinside the pot

[POT] Pot Bearings

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Competitive price compared to other mechanical bearings.

Design Standard EN1337 (EN1337-5) or AASHTO

Materials Steel elements [1], [2], [3], dowels and masonry platesElement Parameter EN 1337-5 (EN 10025) AASTHO (ASTM A709)

Steel elements [1], [2], [3], etc

Standard and grade S355 acc. To EN 10025 ASTM A709-11 GR.50 TYPE 1

Rubber element [4] Element Parameter EN 1337-5 (ISO 6446) AASTHO (ASTM D 4014)

Nat Ruber NR Clorophrene CR

Hardness 50 ± 5 HSh 50 ± 5 HSh

Tensile strength ≥ 15,5 MPa ≥ 15,5 MPa

Elongation ≥ 400 % ≥ 400 %

Compression set (22 h, 70ºC)

≤ 25 % ≤ 25 %

Brass SealsElement Parameter EN 1337-5 (EN 12167) AASTHO (ASTM B36)

Brass seal Standard and grade CuZn39Pb3 acc.EN 12163 - 12167 (A.2.1)

ASTM B36M C26800 H02 half hard

Sliding surface [SD1]: PTFE dimpled sheet vs Stainless Steel Element Parameter EN 1337-5 (EN 1337-2) AASTHO (ASTM 4894)

PTFE dimpled sheet Stand specc gravity 2.14 – 2.20 gr/cm3 2.13 – 2.19 gr/cm3

Tensile strength 29.0 – 40.0 MPa ≥ 27.6 MPa

Elongation 300 % 300 %

Element Parameter EN 1337-5 (EN 337-2) AASTHO (SAE)

Lubrifiant Silicon grease acc. to EN 1337-2

Silicon Grease acc. To SAE AS 8660

Element Parameter EN 1337-5 (EN 1337-2) AASTHO (ASTM A 240)

Stainless steel sheet Standard and grade 1.4404+2B acc. EN 10088-2 (AISI 316)

ASTM A 240 gr. 304 (AISI 304)

Sliding surface on guides: CM1 vs Stainless Steel

Bolts: 10.9

Types [POTM]

[POT] Pot Bearings

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[POTG] [POTT]

[POTF]

Corrosion Protection Standard Protection Designation EN12944-5

Corrosivity category

Type of surface

Primer NDFT

Inter NDFT

Inter NDFT

Final NDFT

Expected Durability

A4.14-EP-PUR C4 Mechanical Cleaning

Zn (R) 60µm

Epoxy 80µm

NA AP 60µm

Medium

A4.15-EP-R C4 Mechanical Cleaning

Zn (R) 60µm

Epoxy 80µm

Epoxy 80µm

AP 60µm

High

A5M.06-EP-PUR C5-M, C5-I Mechanical Cleaning

Zn (R) 60µm

Epoxy 100µm

Epoxy 100µm

AP 60µm

High

A8.02-EP-PUR C5-M, C5-I TS 85Zn-15Al

Epoxy 60µm

Epoxy 100µm

NA AP 80µm

High

A8.04-EP-PUR C5-M, C5-I TS 85Zn-15Al

Epoxy 60µm

Epoxy 80µm

Epoxy 80µm

AP 60µm

High

AP: Aliphatic Polyurethane TS: Thermal Spray coating (Epoxy Sealed)

[POT] Pot Bearings

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C4: Highly Corrosive C5-M: Extremely Corrosive Marine C5-M: Extremely Corrosive Industrial

Other types of protections are available on demand

Standard RAL: 7037

Fastening options

Accessories Measuring kit

Antidust skirt

Uplift clamps

Monitoring (load cells, tiltmeters, displacementgauges)

Folding sheet to prevent upwards blow of dust

Designation Examples: POTM Pot Bearing Type Moveable

20000 Vertical Load at ULS in kN

400 Max acceptable displacement in Long direction

50 Max acceptable displacement in Transv direction

POTG

Pot Bearing Type Guided Long

20000 Vertical Load at ULS in kN

4000 Transverse Load at ULS in kN

50 Max acceptable displacement in Long direction

POTT

Pot Bearing Type Guided Transv

20000 Vertical Load at ULS in kN

4000 Longitudinal Load at ULS in kN

50 Max acceptable displacement in Transv direction

POTF

Pot Bearing Type Fixed 20000 Vertical Load at ULS in kN

Durability Design Lifetime: 50 years

Warranty Standard warranty against defects in materials, function, integrity and corrosion protection: 5 years

Certificates CE mark

Typical dimensions On demand

Required information to produce quotation

For each bearing:

Nsd,max Nsd,min Maximum and Minimum vertical loads

NGd NQd Maximum Vertical permanent and life Load

Fyd Fxd Maximum horizontal loads in both axis

Most adverse combination of maximum horizontal load and minimum vertical load

[POT] Pot Bearings

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Δx+ and Δy+ movements in longitudinal and transverse direction

Δx.pv Preset value to counteract irreversible displacements (i.e creep, shrinkage)

θx+ and θy+ rotations in longitudinal and transverse direction

Concrete strenght in upper and lower interphase

Desired fastening option

Desired accesories

Reference Projects

[POT] Pot Bearings

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[POT] Pot Bearings

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CERTIFICATE THE CE MARK FOR POT BEARINGS

Page 1 / 2

CERTIFICATE OF CONSTANCY OF PERFORMANCE

In compliance with Regulation 305/2011/EU of the European Parliament and of the Council of 9 March 2011 (the Construction Products Regulation or CPR), this certificate applies to the construction product:

STRUCTURAL BEARINGS. PART 5: “POT” BEARINGS

POT BEARINGS IN ACCORDANCE WITH A ZA.1a.

POT BEARINGS WITH SLIDING ELEMENTS IN ACCORDANCE WITH A ZA.1b

PF – FIXED BEARING

PM – FREE BEARING

PG – GUIDED BEARING

Place on the market under the name of:

MK4 WORLD WIDE, S.L. C/ CAN NADAL, NAVE 1ª – P.I. CAN NADAL 08185 LLIÇÀ DE VALL (BARCELONA)

And produced in the manufacturing plant:

MK4 INNOVATIVE SOLUTIONS, S.L.U. C/ CAN NADAL, NAVE 1ª – P.I. CAN NADAL 08185 LLIÇÀ DE VALL (BARCELONA)

This certificate attests that all provisions concerning the assessment and verification of constancy of performance and the performances described in Annex ZA of the standard

EN 1337-5:2005

under system 1 are applied and that the product fulfils all the prescribed requirements set out above.

This certificate was first issued on 26th September 2008 and will remain valid as long as the test methods and/or factory production control requirements included in the harmonised standard, used to assess the performance of the declared characteristics, do not change, and the product, and the manufacturing conditions in the plant are not modified significantly. It is confirmed on 15th November 2019.

The monitoring assessment will be done before October 2020

Bellaterra, 15th November 2019

Xavier Ruiz Peña Managing Director, Product Conformity B.U.

This document is not valid without its technical annex, whose number coincides with the number of certificate

LGAI TECHNOLOGICAL CENTER, S.A. CIF: A-63207492

0370-CPR-0708

LGAI Technological Center, S.A. (APPLUS) Campus UAB - Ronda de la Font del Carme s/n 08193 Bellaterra (Barcelona) T +34 93 567 20 00 www.applus.com

No.

CERTIFICATE

LGAI Technological Center, S.A. (APPLUS) Campus UAB s/n – Ronda de la Font del Carme, s/n E - 08193 Bellaterra (Barcelona) T +34 93 567 20 00 www.appluslaboratories.com

Technical Annex Ed. 3 23/10/2015

0370-CPR-0708

Page 2 / 2

POT BEARINGS IN ACCORDANCE WITH A ZA.1a.

POT BEARINGS WITH SLIDING ELEMENTS IN ACCORDANCE WITH A ZA.1b

WORKING TEMPERATURE: -40ºC TO 50ºC

MAXIMUM DIMENSION OF THE ELASTOMER: 1500 mm

ELASTOMER: NR STEEL: in accordance with EN 10025 ACERO INOXIDABLE: 1.404 2B

INTERNAL SEAL: BRASS

LUBRICANT: SILICONE GRASE

SLIDING ELEMENT: PTFE GUIDES: CM1

REQUIREMENTS CHAPTERS RESULT

1337-5 SECTIONS

BEARING CAPACITY

4 Functional requirements

Annex E: Long term rotation and load test NA

Internal seals Annex A PASS

5 Materials PASS

6.1.1 Principles of design calculation

Design

PASS

6.2.3 Piston/POT contact PASS

6.1.5 Load distribution through components PASS

6.2.1.1 Contact stress PASS

6.2.2 Design: POT PASS

1337-5 SECTIONS

ROTATION CAPACITY

4 Functional Requirements Annex E: NA

6.1.1 Principles of design calculation

DesignAnnex D: Determination of restraint moment

PASS

6.1.2 Rotation limitation PASS

6.1.3 Restraint moments due to rotation PASS

6.2.1.2 Minimum thickness PASS

6.2.4 Geometrical conditions PASS

7.3.1 Piston in POT

Manufacture and tolerances

PASS

7.3.2 Elastomeric pad in POT PASS

7.4 Surface roughness PASS

7.7 Lubrication PASS

1337-5 SECTIONS

DURABILITY ASPECTS

4.2 Durability tests Annex E: NA

5 Materials PASS

6.1.1 Principles of design calculation Design PASS

6.1.2.3 Variable rotation NA

7.5 Corrosion protection 1337-9 PASS

7.6 Internal seals PASS

7.8 Sharp edges PASS

1337-9 SECTIONS

4 Corrosion protection PASS

BEARING CAPACITY (OF THE SLIDING ELEMENT)

En 1337-2 sections 5, 6.2, 6.4, 6.6, 6.8, 6.9, 7.1, 7.2 and 9 PASS

COEFFICIENT OF FRICTION (OF THE SLIDING ELEMENT)

EN 1337-2 sections 4, 5, 6.1, 6.5, 6.7, 7.5 PASS

DURABILITY ASPECTS (SLIDING ELEMENT)

EN 1337-2 sections 7.3 and 7. 4 PASS

EN 1337-9 section 4 PASS

NPD: No Performance Determined // NA: Not Applies

SPAIN | POLAND | MIDDLE EAST | CHILE | BRASIL | COLOMBIA | PERU

MK4 Headquarter Carrer Can Nadal, Nave 1-A,08185 Lliça de VallBarcelona (SPAIN)

Tel. +34 93 863 42 50www.mekano4.com

mk4@mekano4.com@mekano4linkedin.com/mekano4