application areas - gerb · 2021. 1. 15. · • no harm to the workshop or building • seismic...
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GERBApplication Areas
Benefits offered by GERB solutions
• Unrivalled vibration isolation efficiency-upto99%
• Reduced foundation size, which resultsincost,timeandspace savings
• Designedtoensuremaintenance free, durable operation
• Reduced stressinmachines, whichleadstoan increased operation life
• Easy levelling ofthemachine wheneverrequired,evenafteryearsofoperation
• No harm totheworkshopor building
• Seismic protection ofmachinery, buildingsandothertallstructures
ThehistoryofGERBdatesbackto1908.Thiswastheyearinthatitsfounder,WilliamGerb,becamefascinatedwiththeideaofusingsteel springsinordertoprotect workareasandsurroundingneighborhoodsfrommachineryvibrations.Subsequently,theinventionoftheViscodamper® com-pletedthemostefficientvibrationcontrol systems.
Sincethen,theGERBGroupofcompanieshascontinuedtodevelopthisideaandithasseenussolvedynamicproblemsacrossmanynewfieldsofapplication.
Today,bothmachineryandequipmentinmanypower generation and metal forming plantsareinstalledonactive vibration iso-lation systems.Theobjectivebehindthisisnotonlytoreducevibrationsthataregen-eratedbythemachines,butalsotoreducethefoundationsizeandcost.
Sensitive production, measurement and test equipment, and even entire buildings require passive isolation systems inordertoprotectagainstdisturbingvibrationsofnearbymachines,trafficandseismicac-tivities.Bothactiveandpassiveisolationsystemspermitthestraightforwardre-alignmentofthefoundationincaseswherepoorsoilconditionscausethefoundationtosettle.
Tuned Mass Dampers (TMDs) are a specialtypeofvibrationprotectionfortallerstructures.Specifically,theyareusedtostabilizeandreducevibrationsofbridges,buildings,stadiumsandothersystems.
AtGERB,wearefullyconsciousthatinnova-tionistheonlywaytosecurethefuture.The vibration isolation of railway tracks and the seismic protectionofsensitiveequip-mentandbuildingsareamongjustsomeofourexcitingnewerapplications.
GERB’sResearchandDevelopmentCenter,whichislocatedinBerlin,Germany,regular-lycollaborateswithhighlyregardedresearchinstitutionsinGermanyandabroad.
GERB Activities:
Thedevelopment,manufactureandsupplyofcustom designed solutions for vibra-tion control.
Ifrequired:
• Measurement/identificationofvibration andstructure-bornenoiseissues
• Staticanddynamicstructuralanalysis
•Installationandadjustmentorsupervision
Applications of Vibration Control Systems
GERBiscertifiedaccordingto: ISO9001,ISO14001,OHSAS18001,DINEN1090-01, DINEN1090-02,ISO3834andotherstandards
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Metal Forming / Industrial Machinery
Anelasticallysupported SMSEUMUCOHASENCLEVER press,Austria
Thespring-supportedCATERPILLARgensets,
USA
Vibrationisolationofcentrifuges, Germany
FORGING HAMMERS Forginghammersgenerateextreme dynamic forces whichhaveadetrimentaleffectonnearbyequipment, theoperatingpersonnelandevenonnearbyresidences. Inresponsetothisissue,GERB’sdirect spring support of forging hammers:
• Achieves a reduction in vibrations ofmorethan85% • Ensures a reduction in construction time and the cost ofthefoundation • Enableshammerstooperate maintenance free for longerperiodsoftime • Eliminatesproblemsoffoundationsettlement and tiltingofthehammer
GAS AND DIESEL GENSETS Nowadays,thespringsupportofgasanddieselgen-setsisastandardfoundationsolutioninmanycoun-tries.
GERBelasticsupportsystemsprovideanefficiency of isolation that reaches up to 98%.Consequently,thishelpstoavoidthesettlement of the substruc-ture as well as damage to the machines in cases of earthquakes.Ourspringsupportsystemsareusedforalltypesofgensets,includingemergencygensets.
PRESSES Alltypesofpresses-whethertheyaremechanical,hy-draulicorscrewpresses-willcreate vibrations that will disturb the surrounding neighborhood.There-sultcanbedamagetothebuildingandothermachinesinstallednearby.
Throughouttheworld,GERBhassucceededin isolatingthelargestandmostcomplicatedpresses inaveryeffectivemanner.
CENTRIFUGES Dynamic forcesofverticalandhorizontalcentrifugesinchemicalandotherindustriescaneffectively be reduced by suitable isolation systemsthatallowtheinstallationofthemachinesonhigherbuildinglevels.
Our4pointisolationsystemhasreplacedthestandardtype3pointsupportingsystemsonagloballevel.
ASpringSupportedLascoForgingHammer,Germany
Theprincipleof DirectSpring
Support
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Power Plants / Damper Systems
Pipeworkdampersforearthquakeprotection atapowerplant, Hungary
Spring-supported axialfan,
TLT,Germany
SpringSupportedAxialFan, Howden,Germany
TURBINES AND CONDENSERS Togetherwithleadingturbinemanufacturers,GERBhasdevelopedtheelasticsupportofturbineswithcapacitiesofupto1700MW.Ourcustomersarebenefittingfromthemanyadvantagesofferedbythisinnovation: • Achieves vibration isolation ofmorethan98% • Straightforward adjustment and realignment • Creates additional space belowtheturbine • Integrates the turbine into the building structure • Protects the turbine against earthquake damage Springsupportedcondensersenablethermalexpansionwithoutanyrestrictions.
FANS ThankstotheGERBspringsupportoffans,heavy block foundations are no longer required.InsteadoftheneedforamassiveRC-block,thefanfounda-tion can either be eliminated or reduced to a small size slab.
The efficiency of vibration isolation of more than 95% willnotcauseanydisturbancetothesurroundingarea.Furthermore,thelowtotalweightofthespring supported fan protects from settlement of the sub-structure.
MILLS / CRUSHERS Millsandcrushersofalltypes,especiallythoseinpowerplantsandthecementindustry,generateheavy random type dynamic forcesthataffectnearbyboil-ers,controlinstrumentsandotherequipment. Springsupportnotonlyreducesmaintenancecostsasaresultoflesswearandtear,butalsoallowsforsmall-erfoundationsthateliminatelayoutconstraint atthesite.
PIPEWORK DAMPERS GERBpipeworkdampersareusedinpowerplants,chemicalplants,refineriesandoffshoreapplica- tionsacrosstheglobefortheprotectionofpipingsys-tems.GERBpipeworkdampersensure: • Vibrations are reduced in all degrees of freedom • The development of high damping forces in case of shock and operational loads • Vibrations are reduced withoutanydelay • GERB Pipework Dampers are maintenance free
Thespring-supported LOESCHEcoalmill,
Belgium
Thespring-supported 900MWSiemensturbine,
Germany
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Building Isolation / Trackbeds
AcommutertrainonaGERBFloatingSlabTrackSystem, LosAngeles,USA
TRACKBED ISOLATION Alltrainsproducenoiseandvibrations,disturbingpeopleandsensitiveindustriesinmanycities.GERBoffersavariety of anti-vibration bearing systems, successfully reducing train induced vibrations and struc-ture-borne noise.
Nowadays,GERBFloatingSlabSystemsrepresenthighly effective and long-term reliable vibration mitigation systemsthatarerecognizedbyexpertsallovertheworld.
BUILDINGS Attractivebuildingplotsfoundincentralandconvenientlocationsof moderncitiesoftencomewithonemajordisadvantage–vibrationsandstructure-bornenoisecausedasaresultof:
•Metroandrailwaylines, •Heavytrucktraffic, •Machineryinneighboringindustrialfacilities Vibrations and ground-borne noise can be significantly reduced by elastic support systems for buildings. GERBspringelementsareinstalledbelowbuildings,inpocketsarrangedwithinbasementwalls,orontopofwallsandcolumnsabovegroundlevel.
Systemswithverticalnaturalfrequenciesaslowas 3to8Hzprovideexcellentattenuationlevels.Theyaresuccessfullyinstalledintunnels,abovegroundandonelevatedrailtracksworldwide.Inparticular,theyareavailablefor
•Trams •Urbanmasstransitsystems •Freighttrains •Highspeedpassengertrains
Formoredetailspleasedonothesitatetocontactus.
GERBspringelementsaredesignedto take loads ranging from 10 to 300 metric tonsandevenhigher. GERBprovideselasticsupportsystemsnotonlyfor entire buildings, but also for floating floors and room-within-a-room structuresusingembedded“jackup”springelementsorsupportingspringunits.
Thevibrationandstructure-bornenoiseisolationofconcert halls, TV studios, nightclubs, IT rooms, swimming pools and even helipad platforms are justaselectionofexamplesofprojectsthatGERBex-ecutesonadailybasis.
Aspring-supportedofficebuilding aboverailtracks,
Paris,France
Thetrackbedisolationofahighspeedline, Cheonan,Korea
Aspring-supportedresidentialbuilding, Berlin,Germany
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Seismic Protection / Tuned Mass DampersTheretrofitofahospitalbuildingbyaGERBTunedMassControlSystem,
Slobozia,RomaniaEARTHQUAKE PROTECTION OF MACHINERY, BUILDINGS AND OTHER STRUCTURES Manycountrieshavetolivewiththeconstantthreat ofearthquakes.Inresponsetothis,GERBisofferingvisco-elastic devices to ensure the earthquake protection of heavy machinery and structures.Machines,equipmentandbuildingswithsuchdeviceshavebeenabletosurvivepowerfulearthquakesoverthelastyearsinmanyseismicallyproneareasoftheworld. Withso-calledTuned Mass Control Systems,GERBhasbeenabletoeffectivelyprotectlargebridges,newandexistingsensitivebuildingssuchashospitalsandofficebuildings.
Forfurtherinformationpleasedonothesitateto contactus.
TUNED MASS DAMPERS (TMDs) Widespanstructureslikebridges,stairsandroofs,as well as tall, narrow structuressuchaschimneys,antennas,mastsandskyscrapers,canbeexcitedtovibratebywindforces,pedestrians,car or railway traffic and earthquakes.
GERB’sTMDsarespeciallydesignedtoreducethesevibrationsofheavystructuresandfortherequired application.
Consistingofspringorpendulumsystems, oscillatingmassesandViscodampers®,theyare passive type dampersthatfeaturethe followingadvantages:
• Do not require an energy source • Simple in design and maintenance free • Highly effective and provide maximum reduction of vibrations • Tunable on-site, even after years of operation
TheMillenniumBridgewithGERBTMDretrofit,London,UK
HighrollerwithTMDsforprotectionfromwind-forcedvibrations,LasVegas,USA
Theprotectionofaskyscraperfromwind-forcedvibrations,Doha,Qatar6
Special Applications
Retrofitofaturbinefoundationsystemata powerplant,Germany
SHIPBUILDING AND OFFSHORE FACILITIES Unquestionably,noiseandvibrationcontrolplaysasignificantroleinensuringsafetyandcomfortonshipsandoffshorefacilities.
SpecialspringelementsandTMDshavebeen developedbyGERBforelasticsupportandvibrationreductionofengines,powergenerators,compressorsandotheraggregatesonshipsandoffshorestructures.
GERBproductsforshipandoffshoreapplications featuremanybenefits,including:
• Resistant to high and low ambient temperatures • Resistant to fire and corrosion • Non-aging and maintenance free • Easy to install
MICROSEISMIC Impressively,itisnotonlydisastrousvibrationsbyearthquakes,trafficandindustrialoperationthatcanbereduced.
GERBalsoprovidesvibration control systems for buildings, machinery and equipment in the micro and nano process industries.
Extremely sensible machinery and equipmentsuchas3D-measurementmachines,opticandelectronicmicroscopes,andITequipmentcan now be protect-ed from vibrations thanks to special spring elements and dampers.
GERBprovidesdesign,civilengineering,productsforisolation,installationandinspectionservicesthatcanbetailor-madeforyourspecificrequirements.
RESTORING AND UPDATING OF FOUNDATION SYSTEMS More than one-third of all power plants throughout the world are aged over 30 years. Manyofthemoperatemachinery and equipment that needs to be updatedwithnewer,highercapacityturbogenerators,coalmills,boilerfeedpumpsandfans. Largemachinefoundationsinotherareasliketheautomobile,paperprinting,orchemicalindustrieshavealsofoundaneedforrestorationandretrofit. Forover50years,GERBhasupdatedmachinefoundationsformanyleadinggroupsinpowergeneratingandotherindustries.
GERB’s full service offer includes:
•Soilandfoundationassessment •Proposalsfornewmachinefoundationsystemswithfulldocumentation (i.e.staticanddynamicanalysis,generalarrangementandreinforcement drawings,re-barlists) •Supplyofelasticfoundationsystems(ifrequired) •Constructionsupervisionandstartupassistance
Foryourspecialrequirements,pleasedonothesitatetocontactus.
Theprotectionofaresearchcenterfrommicroseismicvibrations, Bucharest,Romania
AnoffshoretowerwithTMD,NorthSea
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Vibrations can be controlledwherever they occur
USA | Chicago
Mexico | Guadalajara
Brazil | São Paulo
Italy | Milano
Germany | EssenFrance | Paris
Spain | Zaragoza
Russia | Saint Petersburg
India | Bangalore
Thailand | Bangkok
Czech Republic | Prague
Asia-Pacific | Singapore
Japan | Hiratsuka
Korea | Seoul
China | Qingdao
Germany | Berlin (Headquarters)
France | Saint Nazaire
India | New Delhi
worldwide
©GERB Schwingungsisolierungen GmbH & Co. KG | All rights reserved.
GERB Schwingungsisolierungen GmbH & Co. KG
Roedernallee 174 - 17613407 Berlin/Germany+49 30 [email protected]
Ruhrallee 31145136 Essen/Germany+49 201 26604-0
Certified: DIN EN ISO 9001 et al.
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