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Structural Bearings Vasoflon Series

STRUCTURES SUCH AS THIS RUN ON

FIP BEARINGS

In 1992, FIP Industriale secured CISQ-ICIM

certification for its Quality Assurance System in

conformance with EN 29001 European Standard

(ISO 9001).

FIP Industriale is proud to be the first Italian

manufacturer of structural bearings, aseismic devices

and expansion joints boasting a Quality Assurance

System certified at the highest level - from design

to customer service assistance.

Certification has been achieved via rigorous

evaluation by an internationally recognized Third

Party Organisation, thus internationally validating

the quality assurance system.

POT - TYPE BEARINGS

DESCRIPTION The VASOFLON series is a range of structural bearingswhich support vertical and horizontal loads and permitlimited rotation about any horizontal axis.The rotationalelement is comprised of an elastomeric pad confined ina cylinder with a close fitting piston and seals.The standard rotational movements are limited to 0.015rad.The sliding movements occur between mating surfacesof mirror polished stainless steel and PTFE sheets.The main features of the Vasoflon series are:- Capability of accommodating high horizontal / vertical

load ratios.- Low reaction to angular rotations.- Low overall height.- Possibility of measuring the bearing reactions.- Possibility of compensating foundation settlement.The Vasoflon bearings are available in fixed and slidingtypes.

FIXED BEARING VFThe fixed bearing comprises:- a monolithic base plate (pot) with a machined recess

which contains the elastomeric disc and the internalseal.

- the top plate which closes the open end of the recessin the pot and bears on the elastomeric pad.

- the internal seal which prevents escape of theelastomer material through the clearance between therecess wall and the piston when a compressive load isapplied to the elastomeric disc.

UNIDIRECTIONAL SLIDING (GUIDED)BEARING VUThe guided bearing comprises:- the monolithic base plate with the elastomeric disc and

sealing ring.- an intermediate element (piston) which fits into the

base plate and with the upper surface partially coveredwith PTFE sheets. A guide bar, which defines thedirection of movement and withstands lateral forces, isfixed to the element by means of cap screws.

- an upper plate (sliding element) with the lower surfacelined with stainless steel. A groove is also obtained bymachining along the direction of movement.

MULTIDIRECTIONAL SLIDING (FREE)BEARING VMThe multidirectional type bearing is similar to the guidedtype, the only difference being the removal of the guidebar and the groove, as this type of bearing has to allowmovements along any direction.

BEARING TYPE

BEARING COMPONENTS

1. Sliding element - 2. Stainless steel - 3. PTFE - 4. Low frictionstrip- 5. Guide element - 6. Intermediate element - 7. Sealing ring

- 8. Elastomeric pad - 9. Pot - 10. Dust protection

STANDARDSFIP Industriale is able to design and manufacturebearings according to the recommendations of variousSpecifications such as Italian (CNR 10018), British (BS5400),German (DIN 4141) and American (AASHTO)Standards as well as European Specifications (EN 1337).

QUALITY CONTROLFIP Industriale has established and maintains adocumented factory production control system toensure that the product conforms with therequirements, and to guarantee the achievement ofoptimum quality with regard to materials andmanufacturing process.

TESTINGFull scale tests on bearings can be performed at FIPtesting rig.The main features of the rig are:- maximum vertical load = 80 MN;- maximum transverse force = 7,5 MN;- maximum longitudinal force = 1,5 MN;- maximum dimensions = 2,3x2,3x1,1 mFIP testing department is also equipped with atemperature room for testing bearings at low and hightemperatures as well as with equipments to carry outdynamic tests.

GENERAL ARRANGEMENTOF A GUIDED TYPE BEARING

DESIGNAND MANUFACTURING CRITERIA

FIXING SYSTEMS

FIXING SYSTEMSThe bearings are usually provided with mechanical fixingsto accommodate the horizontal forces. The typicalmethods of attachment are simple and adequate for mostcases, permitting the removal and replacement of thebearing via jacking up the superstructure by only 10 mm.When the horizontal forces are less than 10% of theconcomitant vertical loads, the friction between bearingand concrete or steel is sufficient to transmit thehorizontal forces. In this case the upper and lowersurfaces of the bearing are provided with grooves toincrease bonding with the epoxy mortar.

MATERIALSThe steel components of bearings are in grade S275 orS355 according to EN 10025 Specifications.Stainless steel for the sliding surface in contact with PTFEis grade X5CrNiMo 1712.PTFE for the sliding surface is pure polytetrafluoro-ethylene free sintered without regenerated or fillermaterials. The PTFE sheets are recessed into a backingplate and are provided with dimples for continuouslubrication of sliding surfaces to reduce friction and wear.The lateral sides of the guide bar in the unidirectionalsliding bearings are lined with low friction compositematerial, type DU-metal. This material consists of three

layers: a bronze backing strip and a sintered interlockingporous matrix, impregnated and overlaid with aPTFE / lead mixture.Upon request, other low friction materials can be used toprovide special characteristics such as dielectricity,resistance to very high temperature etc.The elastomer used in the manufacture of the potbearings contains natural rubber as the raw polymer andhas a hardness of 50 Shore A.

CORROSION PROTECTIONAll bearings components are suitably protected againstcorrosion in accordance with the requirements ofStandard Specifications.The bearings are also provided with an externalprotective skirt and a dust scraper for the sliding surface.

SPECIAL PROVISIONSEach bearing is supplied with a rustproof label to show:- supplier’s name- type of bearing- maximum vertical and horizontal loads- maximum displacements- direction of movement- year of manufactureand any other useful or required information.

PIN AND COUNTER PLATEOR PIN

BONDING GROOVES

SOCKETS

bottom plate upper plate

STORAGEThe bearings are delivered to site fully assembled andready for installation.If the bearings are not immediately installed upon arrival,it will be the responsibility of the Client to ensure thatthey are stored with care, protected from mechanicaldamage, dirt, grime, humidity, heat, contaminants andother deleterious effects.The place of storage must therefore be under cover, cleanand dry.

HANDLINGThe bearing components are assembled and clampedtogether by means of suitable transportation brackets,yellow painted. These brackets are to be removed onlyafter the bearing has been installed and when it has topermit the rotational and sliding movements.Under no circumstance should the yellow brackets beused as temporary fixing device during constructionstage.Unloading of bearings from transport shall be done bymeans of cranes and forklifts and their handling shallalways be done using pallets.During installation, the bearings should be manoeuvred byusing the lifting eye-bolts provided in the upper plate.The bearings should never be disassembled on site inorder to avoid that the intrusion of dust and dirt maydamage the sliding surfaces.

PRESETTINGThe sliding bearings can be supplied with the sliding platepresetted in order to account for special installationconditions. The presetting values are to be provided bythe Engineer to our technical department before thebearings are assembled, so that the presetting can becarried out in our factory by our personnel.

INSTALLATIONThe bearings are supplied with installation drawing andinstructions. Since installation of bearings depends onmany parameters, such as type of structure andconstruction sequence, Fip Technical Department isavailable to discuss with the Contractor and Engineer todefine the most suitable installation procedure.

BEARING SCHEDULEFIP Technical Department is able to design bearings of anysize and for any load combination, by using a sophisticatedFinite Element Program.For the correct design of the bearings it is necessary thatthe Engineer provides all the data contained in the bearingschedule, such as the vertical loads N and horizontalforces H at SLS and ULS, the sliding movements v and therotations α.

TYPICAL BEARING SCHEDULE

1 DESIGNATION OF STRUCTURE

2 INSTALLATION LOCATION (AXIS)

BEARING TYPE

NUMBER OF BEARINGS

3 LIMIT DIMENSIONS OF BEARING Length (mm)

Height (mm)

Width (mm)

4 PRESETTING ev,x (mm)

5 COMBINATION OF DESIGN VALUES: FORCES, DISPLACEMENTS, ROTATIONS

Max. (kN)

N (SLS) Permanent (kN)

Min.

N (ULS) (kN)

Hx,d (SLS) Max. (kN)

Hy,d (SLS) Max. (kN)

Hx,d (ULS) Max. (kN)

Hy,d (ULS) Max. (kN)

Vx,d Max. (mm)

Min. (mm)

Vy,d Max. (mm)

Min. (mm)

αx,d Max. (‰)

Min. (‰)

αy,d Max. (‰)

Min. (‰)

TYPE VFFIXED POT BEARINGS

BEARING TYPE NOMINAL VERTICAL MAX HORIZONAL A I � L * B E � F * H WEIGHT BOLTLOAD (kN) LOAD (kN) (MM) (MM) (MM) (MM) (MM) (KG) TYPE

VF 25-18-18 00250 0258 0180 0170 0150 0150 063 0010 1

VF 50-15-15 00500 0214 0210 0190 0180 0170 063 0015 1

VF 75-18-18 00750 0267 0240 0210 0210 0190 067 0020 1

VF 100-15-15 01000 0214 0270 0240 0240 0220 067 0025 1

VF 125-19-19 01250 0278 0300 0260 0270 0240 072 0030 1

VF 150-17-17 01500 0250 0310 0280 0270 0250 082 0035 2

VF 175-25-25 01750 0358 0340 0300 0300 0270 087 0045 2

VF 200-26-26 02000 0379 0360 0310 0320 0280 087 0055 2

VF 225-32-32 02250 0460 0380 0330 0340 0300 092 0065 2

VF 250-27-27 02500 0389 0400 0350 0360 0320 091 0070 2

VF 275-32-32 02750 0463 0420 0360 0380 0330 094 0080 2

VF 300-35-35 03000 0503 0440 0370 0400 0340 095 0085 2

VF 325-38-38 03250 0543 0460 0380 0420 0350 096 0095 2

VF 350-53-53 03500 0757 0490 0420 0430 0380 101 0115 3

VF 375-59-59 03750 0841 0510 0430 0450 0390 106 0130 3

VF 400-59-59 04000 0841 0520 0440 0460 0400 106 0135 3

VF 425-63-63 04250 0892 0530 0450 0470 0410 110 0145 3

VF 450-61-61 04500 0876 0550 0460 0490 0420 110 0155 3

VF 475-68-68 04750 0973 0560 0470 0500 0430 110 0165 3

VF 500-64-64 05000 0907 0570 0480 0510 0440 108 0170 3

VF 550-74-74 05500 1056 0610 0510 0550 0470 110 0200 3

VF 600-73-73 06000 1038 0630 0520 0570 0480 111 0215 3

VF 650-83-83 06500 1179 0650 0540 0590 0500 118 0240 3

VF 700-86-86 07000 1225 0670 0550 0610 0510 119 0260 3

VF 750-84-84 07500 1192 0690 0570 0630 0530 120 0275 3

VF 800-88-88 08000 1250 0720 0590 0640 0550 120 0300 3

VF 850-75-75 08500 1073 0740 0600 0680 0560 119 0310 3

VF 900-109-109 09000 1550 0760 0610 0680 0570 129 0360 3

VF 950-90-90 09500 1281 0780 0630 0700 0590 129 0365 3

VF 1000-89-89 10000 1266 0800 0640 0720 0600 129 0385 3

VF 1100-130-130 11000 1839 0840 0730 0770 0690 163 0570 4

VF 1200-143-143 12000 2035 0880 0760 0810 0720 163 0620 4

VF 1300-133-133 13000 1881 0910 0780 0840 0740 163 0660 4

VF 1400-161-161 14000 2287 0950 0810 0880 0760 172 0770 4

VF 1500-144-144 15000 2037 0980 0830 0910 0780 172 0810 4

VF 1700-211-211 17000 2985 1050 0880 0980 0830 182 1000 4

VF 1900-187-187 19000 2653 1100 0920 1020 0860 182 1080 4

VF 2100-218-218 21000 3083 1160 0960 1080 0910 191 1270 4

VF 2300-224-224 23000 3176 1210 1000 1140 0950 201 1450 4

VF 2500-290-290 25000 4105 1270 1040 1190 0990 211 1690 4

VF 2750-326-326 27500 4624 1330 1080 1250 1030 220 1940 4

VF 3000-333-333 30000 4720 1400 1130 1320 1070 219 2130 4

VF 3250-353-353 32500 5002 1440 1160 1360 1100 229 2360 4

VF 3500-380-380 35000 5387 1500 1200 1420 1150 229 2560 4

VF 3750-401-401 37500 5685 1550 1240 1480 1190 239 2860 4

VF 4000-411-411 40000 5815 1600 1270 1520 1250 239 3020 4

- Vertical and Horizontal loads are at serviceability limite state(SLS).

- The dimensions are for bearings designed according to CNR10018 and BS 5400.

- The average contact pressure is 20 N/mm2 at maximum SLSvertical load.

- Max Horizontal load is the resultant load.

* Please refer to the drawings in the section fixing systems

TYPE VUUNIDIRECTIONAL

POT BEARINGS

BEARING TYPE NOMINAL VERTICAL MAX HORIZONAL A I � L * C D E * F * H WEIGHT BOLTLOAD (kN) LOAD (kN) (MM) (MM) (MM) (MM) (MM) (MM) (MM) (KG) TYPE

VU 25/50-8 00250 0087 0180 0170 0180 0220 0140 0180 083 0015 1

VU 50/50-11 00500 0115 0210 0190 0210 0240 0170 0200 083 0020 1

VU 75/50-14 00750 0144 0240 0210 0240 0270 0200 0230 087 0030 1

VU 100/50-15 01000 0154 0270 0240 0270 0290 0230 0250 087 0035 1

VU 125/50-17 01250 0173 0300 0260 0300 0310 0260 0270 092 0045 1

VU 150/50-20 01500 0201 0310 0280 0310 0330 0250 0270 097 0050 2

VU 175/50-20 01750 0201 0340 0300 0340 0340 0280 0280 102 0065 2

VU 200/50-23 02000 0230 0360 0310 0360 0360 0300 0300 102 0070 2

VU 225/50-23 02250 0230 0380 0330 0380 0380 0320 0320 107 0080 2

VU 250/50-25 02500 0259 0400 0350 0400 0410 0340 0350 106 0090 2

VU 275/50-33 02750 0335 0420 0360 0420 0410 0360 0350 117 0110 2

VU 300/50-33 03000 0335 0440 0370 0440 0430 0380 0370 118 0120 2

VU 325/50-36 03250 0360 0460 0380 0460 0440 0400 0380 119 0130 2

VU 350/50-36 03500 0360 0490 0420 0420 0450 0330 0360 119 0140 3

VU 375/50-39 03750 0395 0510 0430 0440 0470 0350 0380 124 0155 3

VU 400/50-39 04000 0395 0520 0440 0450 0480 0360 0390 124 0165 3

VU 425/50-39 04250 0395 0530 0450 0460 0490 0370 0400 128 0175 3

VU 450/50-42 04500 0420 0550 0460 0480 0510 0390 0420 128 0190 3

VU 475/50-42 04750 0420 0560 0470 0490 0520 0400 0430 128 0200 3

VU 500/50-45 05000 0455 0570 0480 0500 0530 0410 0440 126 0205 3

VU 550/50-48 05500 0480 0610 0510 0530 0560 0440 0470 133 0245 3

VU 600/50-48 06000 0480 0630 0520 0550 0580 0460 0490 134 0265 3

VU 650/50-51 06500 0515 0650 0540 0570 0600 0480 0510 141 0300 3

VU 700/50-51 07000 0515 0670 0550 0590 0620 0500 0530 142 0320 3

VU 750/50-54 07500 0540 0690 0570 0610 0640 0520 0550 143 0340 3

VU 800/50-57 08000 0575 0720 0590 0630 0660 0540 0570 143 0370 3

VU 850/50-60 08500 0600 0740 0600 0660 0690 0570 0600 142 0390 3

VU 900/50-60 09000 0600 0760 0610 0660 0690 0570 0600 152 0440 3

VU 950/50-63 09500 0635 0780 0630 0690 0720 0600 0630 152 0455 3

VU 1000/50-66 10000 0660 0800 0640 0710 0740 0620 0650 152 0480 3

VU 1100/50-66 11000 0660 0840 0670 0730 0760 0640 0670 161 0570 3

VU 1200/50-69 12000 0695 0880 0700 0760 0790 0670 0700 161 0620 3

VU 1300/50-72 13000 0720 0910 0720 0790 0820 0700 0730 161 0660 3

VU 1400/50-78 14000 0780 0950 0750 0820 0850 0730 0760 170 0765 3

VU 1500/50-81 15000 0815 0980 0770 0860 0890 0770 0800 170 0810 3

VU 1700/50-84 17000 0840 1050 0820 0890 0920 0800 0830 185 1010 3

VU 1900/50-90 19000 0900 1100 0850 0950 0980 0860 0890 185 1100 3

VU 2100/50-93 21000 0935 1160 0900 1000 1030 0910 0940 194 1290 3

VU 2300/50-99 23000 0995 1210 0930 1040 1070 0950 0980 199 1425 3

VU 2500/50-102 25000 1020 1270 0970 1070 1100 0980 1010 209 1645 3

VU 2750/50-105 27500 1055 1330 1020 1120 1150 1030 1060 218 1895 3

VU 3000/50-111 30000 1115 1400 1070 1180 1210 1090 1120 217 2070 3

VU 3250/50-117 32500 1175 1440 1160 1280 1310 1160 1190 227 2305 4

VU 3500/50-120 35000 1200 1500 1200 1320 1350 1200 1230 227 2480 4

VU 3750/50-126 37500 1260 1550 1240 1370 1400 1250 1280 237 2775 4

VU 4000/50-129 40000 1295 1600 1270 1410 1440 1290 1320 237 2940 4

- Vertical and Horizontal loads are at serviceability limite state(SLS).

- The dimensions are for bearings designed according toCNR 10018 and BS 5400.

- The average contact pressure is 20 N/mm2 at maximum SLSvertical load.

- The longitudinal dimension D is for sliding movements of± 25 mm.

* Please refer to the drawings in the section fixing systems

TYPE VMMULTIDIRECTIONAL

POT BEARINGS

BEARING TYPE NOMINAL VERTICAL A I � L * C D E * F * H WEIGHT BOLTLOAD (kN) (MM) (MM) (MM) (MM) (MM) (MM) (MM) (KG) TYPE

VM 25/50/20 00250 0180 0170 0180 0220 0140 0180 083 0015 1

VM 50/50/20 00500 0210 0190 0210 0240 0170 0200 083 0020 1

VM 75/50/20 00750 0240 0210 0240 0270 0200 0230 087 0030 1

VM 100/50/20 01000 0270 0240 0270 0290 0230 0250 087 0035 1

VM 125/50/20 01250 0300 0260 0300 0310 0260 0270 092 0045 1

VM 150/50/20 01500 0310 0280 0310 0330 0250 0270 097 0050 2

VM 175/50/20 01750 0340 0300 0340 0340 0280 0280 102 0065 2

VM 200/50/20 02000 0360 0310 0360 0360 0300 0300 102 0070 2

VM 225/50/20 02250 0380 0330 0380 0380 0320 0320 107 0080 2

VM 250/50/20 02500 0400 0350 0400 0410 0340 0350 106 0090 2

VM 275/50/20 02750 0420 0360 0420 0410 0360 0350 117 0110 2

VM 300/50/20 03000 0440 0370 0440 0430 0380 0370 118 0120 2

VM 325/50/20 03250 0460 0380 0460 0440 0400 0380 119 0130 2

VM 350/50/20 03500 0490 0420 0420 0450 0330 0360 119 0140 3

VM 375/50/20 03750 0510 0430 0440 0470 0350 0380 124 0155 3

VM 400/50/20 04000 0520 0440 0450 0480 0360 0390 124 0165 3

VM 425/50/20 04250 0530 0450 0460 0490 0370 0400 128 0175 3

VM 450/50/20 04500 0550 0460 0480 0510 0390 0420 128 0190 3

VM 475/50/20 04750 0560 0470 0490 0520 0400 0430 128 0200 3

VM 500/50/20 05000 0570 0480 0500 0530 0410 0440 126 0205 3

VM 550/50/20 05500 0610 0510 0530 0560 0440 0470 133 0245 3

VM 600/50/20 06000 0630 0520 0550 0580 0460 0490 134 0265 3

VM 650/50/20 06500 0650 0540 0570 0600 0480 0510 141 0300 3

VM 700/50/20 07000 0670 0550 0590 0620 0500 0530 142 0320 3

VM 750/50/20 07500 0690 0570 0610 0640 0520 0550 143 0340 3

VM 800/50/20 08000 0720 0590 0630 0660 0540 0570 143 0370 3

VM 850/50/20 08500 0740 0600 0660 0690 0570 0600 142 0390 3

VM 900/50/20 09000 0760 0610 0660 0690 0570 0600 152 0440 3

VM 950/50/20 09500 0780 0630 0690 0720 0600 0630 152 0455 3

VM 1000/50/20 10000 0800 0640 0710 0740 0620 0650 152 0480 3

VM 1100/50/20 11000 0840 0670 0730 0760 0640 0670 161 0570 3

VM 1200/50/20 12000 0880 0700 0760 0790 0670 0700 161 0620 3

VM 1300/50/20 13000 0910 0720 0790 0820 0700 0730 161 0660 3

VM 1400/50/20 14000 0950 0750 0820 0850 0730 0760 170 0765 3

VM 1500/50/20 15000 0980 0770 0860 0890 0770 0800 170 0810 3

VM 1700/50/20 17000 1050 0820 0890 0920 0800 0830 185 1010 3

VM 1900/50/20 19000 1100 0850 0950 0980 0860 0890 185 1100 3

VM 2100/50/20 21000 1160 0900 1000 1030 0910 0940 194 1290 3

VM 2300/50/20 23000 1210 0930 1040 1070 0950 0980 199 1425 3

VM 2500/50/20 25000 1270 0970 1070 1100 0980 1010 209 1645 3

VM 2750/50/20 27500 1330 1020 1120 1150 1030 1060 218 1895 3

VM 3000/50/20 30000 1400 1070 1180 1210 1090 1120 217 2070 3

VM 3250/50/20 32500 1440 1160 1280 1310 1160 1190 227 2305 4

VM 3500/50/20 35000 1500 1200 1320 1350 1200 1230 227 2480 4

VM 3750/50/20 37500 1550 1240 1370 1400 1250 1280 237 2775 4

VM 4000/50/20 40000 1600 1270 1410 1440 1290 1320 237 2940 4

- Vertical loads are at serviceability limite state (SLS).- The dimensions are for bearings designed according to

CNR 10018 and BS 5400.

- The average contact pressure is 20 N/mm2 at maximum SLSvertical load.

- The dimensions of the top plate are for movements of± 25 mm (longitudinal) and ± 10 mm (transverse).

* Please refer to the drawings in the section fixing systems

FIP BEARING TYPES

RUNDFLON

VASOFLON

CERNOFLON

SFEROFLON

ROCKFLON

ELASTOFIP

NEOARM

FIP BEARINGSIN THE WORLD

Ting Kau Bridge - Hong Kong Marquam Bridge - Portland - Oregon - USA

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Hong Kong Convention Exhibition Centre Extension Storebaelt East Bridge - Denmark

B01

Second Severn Crossing - UK

Vasco da Gama bridge - Lisbon - Portugal

Consortium Tejo apojos e juntas

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E-mail:fip@fip-group.it - Internet: http://www.fip-group.it

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