NO141378B - CONSTRUCTION WITH INTERNAL VIBRATION DAMPING - Google Patents
CONSTRUCTION WITH INTERNAL VIBRATION DAMPING Download PDFInfo
- Publication number
- NO141378B NO141378B NO751853A NO751853A NO141378B NO 141378 B NO141378 B NO 141378B NO 751853 A NO751853 A NO 751853A NO 751853 A NO751853 A NO 751853A NO 141378 B NO141378 B NO 141378B
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- Norway
- Prior art keywords
- construction
- vibration damping
- layer
- viscoelastic
- vibration
- Prior art date
Links
- 238000013016 damping Methods 0.000 title claims description 37
- 238000010276 construction Methods 0.000 title claims description 29
- 239000004567 concrete Substances 0.000 claims description 15
- 239000003190 viscoelastic substance Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 239000002023 wood Substances 0.000 claims description 4
- 229920002522 Wood fibre Polymers 0.000 claims description 2
- 239000010440 gypsum Substances 0.000 claims description 2
- 229910052602 gypsum Inorganic materials 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 239000002025 wood fiber Substances 0.000 claims description 2
- 238000012545 processing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- UNILWMWFPHPYOR-KXEYIPSPSA-M 1-[6-[2-[3-[3-[3-[2-[2-[3-[[2-[2-[[(2r)-1-[[2-[[(2r)-1-[3-[2-[2-[3-[[2-(2-amino-2-oxoethoxy)acetyl]amino]propoxy]ethoxy]ethoxy]propylamino]-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-[(2r)-2,3-di(hexadecanoyloxy)propyl]sulfanyl-1-oxopropan-2-yl Chemical compound O=C1C(SCCC(=O)NCCCOCCOCCOCCCNC(=O)COCC(=O)N[C@@H](CSC[C@@H](COC(=O)CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCC)C(=O)NCC(=O)N[C@H](CO)C(=O)NCCCOCCOCCOCCCNC(=O)COCC(N)=O)CC(=O)N1CCNC(=O)CCCCCN\1C2=CC=C(S([O-])(=O)=O)C=C2CC/1=C/C=C/C=C/C1=[N+](CC)C2=CC=C(S([O-])(=O)=O)C=C2C1 UNILWMWFPHPYOR-KXEYIPSPSA-M 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000011093 chipboard Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 210000003953 foreskin Anatomy 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar form; Layered products having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/02—Physical, chemical or physicochemical properties
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/92—Protection against other undesired influences or dangers
- E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/162—Selection of materials
- G10K11/168—Plural layers of different materials, e.g. sandwiches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/38—Meshes, lattices or nets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/56—Damping, energy absorption
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
- E04B2001/8466—Solid slabs or blocks layered with an intermediate layer formed of lines or dots of elastic material
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Architecture (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Multimedia (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
- Vibration Prevention Devices (AREA)
Description
Foreliggende oppfinnelse angår en konstruk- The present invention relates to a construction
sjon med indre vibrasjonsdemping og omfattende minst to av et tynt lag viskoelastisk materiale atskilte konstruksjons- tion with internal vibration damping and comprising at least two of a thin layer of viscoelastic material separated construction
deler av f.eks. metall, betong, lettbetong, gips, tre, trefiberplater, plast eller kombinasjoner av disse materialer. parts of e.g. metal, concrete, lightweight concrete, plaster, wood, wood fibreboard, plastic or combinations of these materials.
Det har lenge vært kjent å vibrasjonsdempe It has long been known to dampen vibrations
plater ved en såkalt sandwichmetode, dvs. ved å anbringe et tynt lag av et viskoelastisk materiale mellom to plater. Fra det svenske patent nr. 3^4.093 er det også kjent på tilsvar- plates by a so-called sandwich method, i.e. by placing a thin layer of a viscoelastic material between two plates. From the Swedish patent no. 3^4,093 it is also known on the equivalent
ende måte vibrasjonsdempede betong- eller lettbetongkonstruk-sjoner der et i forhold til en betong- eller lettbetong-konstruksjon meget tynt lag av et viskoelastisk materiale er anbrakt mellom to deler av konstruksjonen. I en slik konstruksjon utnyttes det viskoelastiske materialets evne til under skyving mellom de to konstruksjonsdelene ved deres bøyning som følge av vibrasjoner å omvandle en stor del av vibrasjons-energien til varme. end way vibration-damped concrete or lightweight concrete constructions where, in relation to a concrete or lightweight concrete construction, a very thin layer of a viscoelastic material is placed between two parts of the construction. In such a construction, the ability of the viscoelastic material to convert a large part of the vibrational energy into heat during pushing between the two structural parts by their bending as a result of vibrations is utilized.
Maksimal skyving i vibrasjonsdempesjiktet og Maximum thrust in the vibration damping layer and
dermed maksimal vibrasjonsdemping av konstruksjonen oppnås når vibrasjonsdempesjiktet plasseres i eller nær den homogene konstruksjonens nøytralplan. I det tilfellet at samme materialet utnyttes på begge sider av vibrasjonsdempesjiktet, f.eks. plate- og vibrasjonsdempesjiktplate, innebærer dette at vibrasjonsdempesjiktet bør plasseres slik at den totale stivheten på en på denne måte dempet konstruksjon skal være vesentlig jevnt fordelt på begge sider av det viskoelastiske laget. thus maximum vibration damping of the structure is achieved when the vibration damping layer is placed in or close to the neutral plane of the homogeneous structure. In the event that the same material is used on both sides of the vibration damping layer, e.g. plate and vibration damping layer plate, this means that the vibration damping layer should be placed so that the total stiffness of a construction damped in this way should be substantially evenly distributed on both sides of the viscoelastic layer.
Ved de kjente konstruksjonene er det viskoelastiske materialet jevnt fordelt i et tynt sjikt over hele kontaktflaten mellom de to konstruksjonsdelene. In the known constructions, the viscoelastic material is evenly distributed in a thin layer over the entire contact surface between the two structural parts.
De mest effektive viskoelastiske materialene kjennetegnes av ekstremt høy tapsfaktor (større enn 1,0), har høy vedhefting - fungerer som lim mellom konstruksjonsdelene-, hensiktsmessig konsistens etc. Disse viskoelastiske material- The most effective viscoelastic materials are characterized by an extremely high loss factor (greater than 1.0), have high adhesion - acts as glue between the construction parts-, appropriate consistency etc. These viscoelastic materials-
ene er dyre. one is expensive.
Tilpassing av det viskoelastiske vibrasjonsdempesjiktet til konstruksjonen for å oppnå maksimal vibrasjonsdemping skjer ved variasjon av sjikttykkelse og skyvemodul (10<5> - 10<9>N/m<2>, fortrinnsvis 10<6> - 10<8> N/m<2>) på vibrasjonsdempesjiktet. I praksis kan disse parametere varieres bare innen relativt snevre grenser. Skyvestivheten på sjiktet kan for de mest effektive materialene ikke gjøres tilstrekkelig lav med bibehold av øvrige ønskelige egenskaper. Blant annet blir konsistensen uhensiktsmessig (sjiktmasse fastner i verktøy ved bearbeidelse) og vedheftingen blir for lav. Adaptation of the viscoelastic vibration damping layer to the construction to achieve maximum vibration damping occurs by varying the layer thickness and shear modulus (10<5> - 10<9>N/m<2>, preferably 10<6> - 10<8> N/m< 2>) on the vibration damping layer. In practice, these parameters can only be varied within relatively narrow limits. For the most effective materials, the shear stiffness of the layer cannot be made sufficiently low while retaining other desirable properties. Among other things, the consistency becomes inappropriate (layer compound gets stuck in tools during processing) and the adhesion becomes too low.
Applisering av dempematerialet er temmelig tid-krevende. Ved applisering på metallplater, sponplater etc. er det fare for ukontrollerte luftinneslutninger. Application of the damping material is rather time-consuming. When applying on metal sheets, chipboard etc. there is a risk of uncontrolled air inclusions.
Ulempene nevnt ovenfor er løst ved hjelp av en konstruksjon av den innledningsvis nevnte art som er karakterisert ved at den ene konstruksjonsdel via det viskoelastiske lag er anbrakt i partiell kontakt med den andre konstruksjonsdel på en slik måte at den største avstand mellom kontaktområdene er mindre enn den minste bølgelengde i det forutbestemte frekvensområde hvori vibrasjonsdempningen skal være effektiv. The disadvantages mentioned above are solved by means of a construction of the type mentioned at the outset, which is characterized by the fact that one construction part is placed in partial contact with the other construction part via the viscoelastic layer in such a way that the largest distance between the contact areas is smaller than the minimum wavelength in the predetermined frequency range in which the vibration damping must be effective.
En spesiell god vibrasjonsdemping oppnås når A particularly good vibration damping is achieved when
den ene konstruksjonsdelen i den nevnte indirekte kontakt med den andre konstruksjonsdelen etter et linje-,punkt- eller nettverkformet mønster. Derved har man mulighet for kontinuerlig å variere stivheten på det totale vibrasjonsdempingssjiktet, one structural part in said indirect contact with the other structural part following a line, point or network-shaped pattern. Thereby, it is possible to continuously vary the stiffness of the overall vibration damping layer,
dvs. dets totale areal, ved f.eks. å variere antallet punkter eller deres størrelse for derved å tilpasse en konstruksjons-dempeegenskap til ønsket verdi. Forsøk har vist at man med en dekking av 10% kan oppnå samme vibrasjonsdemping som ved helt dekkende sjikt dersom tidligere angitte vilkår med hensyn til avstanden mellom de dekkede partiene og tilpasning av skyvestivheten på vibrasjonsdempesjiktet oppfylles. i.e. its total area, by e.g. to vary the number of points or their size in order to thereby adapt a structural damping property to the desired value. Experiments have shown that with a coverage of 10%, the same vibration damping can be achieved as with a completely covering layer if the previously specified conditions with regard to the distance between the covered parts and adaptation of the sliding stiffness of the vibration damping layer are met.
Ved at et viskoelastisk vibrasjonsdempemateriale er virksomt innen et begrenset temperaturområde, har det hittil vært umulig å oppnå fullgod vibrasjonsdemping innen et bredere temperaturområde. Ved hjelp av den partielle appliseringen ifølge oppfinnelsen blir det mulig å utvide det temperaturområde innen hvilket en konstruksjon er virksomt dempet, ved vekselvis å applisere flere viskoelastiske materialer med innbyrdes forskjellig temperaturavhengighet på skyvemodulen. As a viscoelastic vibration damping material is effective within a limited temperature range, it has so far been impossible to achieve fully satisfactory vibration damping within a wider temperature range. With the help of the partial application according to the invention, it becomes possible to expand the temperature range within which a construction is effectively damped, by alternately applying several viscoelastic materials with mutually different temperature dependencies on the sliding module.
Det har hittil vært vanskelig å bearbeide vibrasjonsdempede plater, såkalte sandwichplater. Ved f.eks., boring har det viskoelastiske materialet klebet fast til boret, og sveising har frembudt en del problemer. Med f.eks. partiell applisering av vibrasjonsdempesjiktet ifølge oppfinnelsen, har man nå langt større muligheter for å bearbeide sandwichplate ved at punktenes beliggenhet kan merkes på platens overside, og bearbeidelse i de fleste tilfeller kan skje innen de områder som ikke er dekket med dette materialet. Up until now, it has been difficult to process vibration-damped boards, so-called sandwich boards. When drilling, for example, the viscoelastic material has stuck to the drill, and welding has presented a number of problems. With e.g. partial application of the vibration damping layer according to the invention, one now has far greater possibilities for processing sandwich panels by the fact that the location of the points can be marked on the upper side of the panel, and processing in most cases can take place within the areas that are not covered with this material.
Appliseringen av et partielt dekkende sjikt ifølge oppfinnelsen kan utføres på en enkel måte, enten den skjer i form av linjer, punkter eller nett, ved automatiske doserings-anordninger. Riktig sjikttykkelse kan oppnås ved pressing eller valsing av den øvre plate eller motsvarende mot den undre. Derav følger-at arbeidsinnsatsen for appliseringen av et partielt vibrasjonsdempesjikt ifølge oppfinnelsen er langt mindre enn for applisering av et helt dekkende sjikt ifølge konvensjonell teknikk. The application of a partially covering layer according to the invention can be carried out in a simple way, whether it takes place in the form of lines, points or nets, by automatic dosing devices. The correct layer thickness can be achieved by pressing or rolling the upper plate or the equivalent against the lower one. It follows from this that the work effort for the application of a partial vibration damping layer according to the invention is far less than for the application of a completely covering layer according to conventional techniques.
Ved at en plate ifølge oppfinnelsen kan utnyttes mot et fagverk eller motsvarende med samme stivhet, kan man ved at stivheten øker i tredje potens i forhold til høyden, oppnå tilstrekkelig stivhet ved forholdsvis lite materialtil^ gang og således lav konstruksjonsvekt. By the fact that a plate according to the invention can be used against a truss or equivalent with the same stiffness, by increasing the stiffness to the third power in relation to the height, sufficient stiffness can be achieved with relatively little material access and thus low construction weight.
En ytterligere utvikling av oppfinnelsestanken innebærer at den ene platen er byttet ut mot f.eks. armerings-jern, forsynt med tynt viskoelastisk dempelag, hvilke jern er innlagt i den andre platen nær dens overflate og som tillates å skyves. Jernene er helt eller delvis forsynt med et sjikt av dempende viskoelastisk materiale. A further development of the invention idea means that one plate has been replaced by e.g. rebar, provided with a thin viscoelastic damping layer, which iron is embedded in the second plate near its surface and which is allowed to slide. The irons are fully or partially provided with a layer of damping viscoelastic material.
Ved støping av en dempet betongkonstruksjon med partielt dekkende vibrasjonsdempesjikt ifølge oppfinnelsen, kan man for unngåelse av at de to platene sammenstøpes på de av vibrasjonsdempesjikt ikke dekkede stedene, på den nedre platen legge f.eks. et dekkende ark av forhudningspapp med åp-ninger på de plasser der vibrasjonsdempesjikt skal legges. Alternativt kan dempesjiktet appliseres partielt på den ene eller begge sidene av en bærer, f.eks. forhudningspapp. When casting a damped concrete structure with a partially covering vibration damping layer according to the invention, to avoid the two plates being cast together in the places not covered by the vibration damping layer, the lower plate can be placed e.g. a covering sheet of skinning cardboard with openings in the places where the vibration dampening layer is to be laid. Alternatively, the damping layer can be applied partially on one or both sides of a carrier, e.g. foreskin cardboard.
Oppfinnelsen skal i det følgende beskrives under henvisning til noen utførelseseksempler som er vist på teg-ningen . Fig. 1 viser et snitt gjennom en på konvensjonell måte vibrasjonsdempet konstruksjon. Fig. 2 viser på samme måte prinsippet for vibrasjonsdempning ifølge oppfinnelsen. Fig. 3 og 4 viser to mot hverandre vinkelrette snitt gjennom en betongkonstruksjon der stivheten fra den øvre platen er støpt inn i den nedre platen i form av et antydnings-vis vist fagverk, In the following, the invention will be described with reference to some examples of execution which are shown in the drawing. Fig. 1 shows a section through a conventionally vibration-damped construction. Fig. 2 similarly shows the principle of vibration damping according to the invention. Figs 3 and 4 show two mutually perpendicular sections through a concrete construction where the stiffness from the upper plate is cast into the lower plate in the form of a truss shown as an indication,
fig. 5 viser ovenfra en detalj av en betongkonstruksjon under fremstilling og fig. 5 shows from above a detail of a concrete construction during manufacture and
fig. 8 viser et snitt etter linjen VII I-VU I i fig. 7. fig. 8 shows a section along the line VII I-VU I in fig. 7.
I fig. 1 er det vist en konvensjonell vibrasjonsdempet konstruksjon, bestående av f.eks. to metallplater, betongplater, gipsplater eller trefiberplater 1 og 2, mellom hvilke det er anbrakt et tynt kontinuerlig sjikt 3 av viskoelastisk materiale. In fig. 1 shows a conventional vibration-damped construction, consisting of e.g. two metal plates, concrete plates, gypsum plates or wood fiber plates 1 and 2, between which a thin continuous layer 3 of viscoelastic material is placed.
Den vibrasjonsdempede konstruksjonen ifølge oppfinnelsen (fig. 2) kan omfatte samme metallplater osv. 1 og 2, men har et partielt dekkende vibrasjonsdempesjikt, bestående av fordelte linjer eller punkter 4 av viskoelastisk materiale. Avstanden a mellom disse linjene eller punkter 4 er ifølge oppfinnelsen fortrinnsvis mindre enn en bølgelengde for det høyeste frekvensområde innen hvilket konstruksjonen skal være virksomt vibrasjonsdempet, og helst mindre enn en tredjedels bølgelengde innen samme område. The vibration damped construction according to the invention (fig. 2) can comprise the same metal plates etc. 1 and 2, but has a partially covering vibration damping layer, consisting of distributed lines or points 4 of viscoelastic material. The distance a between these lines or points 4 is, according to the invention, preferably less than a wavelength for the highest frequency range within which the structure must be effectively vibration-damped, and preferably less than a third of a wavelength within the same range.
I fig. 3 og 4 er det vist hvorledes ifølge oppfinnelsen en plates stivhet kan erstattes av en tilsvarende stivhet, her i form av et fagverk 5 av f.eks. tre, som er anordnet ovenpå en betongplate 6. Et vibrasjonsdempesjikt er i In fig. 3 and 4 show how, according to the invention, the stiffness of a plate can be replaced by a corresponding stiffness, here in the form of a truss 5 of e.g. wood, which is arranged on top of a concrete slab 6. A vibration damping layer is i
form av punkter 7 anordnet mellom fagverket og betongplaten. form of points 7 arranged between the truss and the concrete slab.
I fig. 5 og 6 er det vist hvorledes ifølge en ytterligere utvikling av oppfinnelsestanken den ytre platens stivhet i form av et fagverk 8 arbeides ned i den nedre platen 9. Rundt hele eller deler av det som kassebjeiker viste fagverket er det anbrakt et sjikt av viskoelastisk vibrasjonsdempemateriale 10. In fig. 5 and 6 show how, according to a further development of the inventive idea, the stiffness of the outer plate in the form of a truss 8 is worked down into the lower plate 9. Around all or parts of what Kassebjeiker showed the truss, a layer of viscoelastic vibration damping material 10 is placed .
Ved fremstilling av en Vibrasjonsdempet betongkonstruksjon ifølge oppfinnelsen kan for unngåelse av vedhefting mellom konstruksjonens plater brukes f.eks. et ark av forhudningspapp 11 (fig. 7), som legges på den først støpte platen 12, hvoretter det i papirarket opptatte hull med for formålet hensiktsmessig deling fylles vibrasjonsdempemasse 13 (fig. 8). Deretter kan den øvre (ikke viste) platen støpes. When manufacturing a vibration-damped concrete construction according to the invention, to avoid adhesion between the construction's plates, e.g. a sheet of skinning cardboard 11 (fig. 7), which is placed on the first cast plate 12, after which the hole occupied in the paper sheet with a division suitable for the purpose is filled with vibration damping compound 13 (fig. 8). Then the upper (not shown) plate can be cast.
Oppfinnelsestanken rommer også en konstruksjon der man av praktiske årsaker anbringer et helt dekkende vibrasjonsdempesjikt, men der man på grunn av at overplaten (en av platene) erstattes av en partiell stivhet bare utnytter deler av dette sjiktet for vibrasjonsdempingen. The inventive tank also accommodates a construction where, for practical reasons, a completely covering vibration damping layer is placed, but where, due to the upper plate (one of the plates) being replaced by a partial stiffness, only parts of this layer are used for vibration damping.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7407174A SE383646B (en) | 1974-05-30 | 1974-05-30 | CONSTRUCTION WITH PARTIAL DAMPING LAYER |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO751853L NO751853L (en) | 1975-12-02 |
| NO141378B true NO141378B (en) | 1979-11-19 |
| NO141378C NO141378C (en) | 1980-03-12 |
Family
ID=20321281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO751853A NO141378C (en) | 1974-05-30 | 1975-05-26 | CONSTRUCTION WITH INTERNAL VIBRATION DIMENSION |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS548976B2 (en) |
| BE (1) | BE829710A (en) |
| BR (1) | BR7503374A (en) |
| CA (1) | CA1024717A (en) |
| DE (1) | DE2523710C3 (en) |
| DK (1) | DK139201B (en) |
| FI (1) | FI55552C (en) |
| FR (1) | FR2273132B1 (en) |
| GB (1) | GB1514516A (en) |
| IT (1) | IT1038540B (en) |
| NL (1) | NL176694C (en) |
| NO (1) | NO141378C (en) |
| SE (1) | SE383646B (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5336691U (en) * | 1976-09-04 | 1978-03-31 | ||
| DE2708896A1 (en) * | 1977-03-02 | 1978-09-07 | Messerschmitt Boelkow Blohm | CUSHIONING COVER |
| DE2819123C2 (en) * | 1978-04-29 | 1986-02-20 | Reduc Acoustics AB, Stockholm | Arrangement for vibration damping on structures or objects |
| JPS56119816U (en) * | 1980-02-14 | 1981-09-12 | ||
| JPS56148418U (en) * | 1980-04-04 | 1981-11-07 | ||
| DE3024174A1 (en) * | 1980-06-27 | 1982-01-21 | Fa. Wilfried Knauth, 4350 Recklinghausen | Medium voltage switchgear operated interlock - has electromagnetic plunger withdrawn to enable press plunger switch to operate |
| JPS6213033Y2 (en) * | 1981-02-17 | 1987-04-03 | ||
| JPS6213030Y2 (en) * | 1981-03-09 | 1987-04-03 | ||
| DE3744037C2 (en) * | 1987-12-24 | 1996-01-25 | Goesele Karl | Shell of a formwork block made of plastic foam, in particular polystyrene foam |
| EP0635086B1 (en) * | 1992-04-08 | 1997-09-03 | Ecomax Acoustics Ltd. | Building element and method of manufacturing such element |
| FI20002605A (en) | 2000-11-28 | 2002-05-29 | Vircon Oy | Parquet flooring material |
| NZ551301A (en) | 2004-04-15 | 2011-01-28 | Philippe Pierre Marie Joseph Doneux | A construction panel laminate including a viscoelastic acoustic barrier material layer affixed to a flat construction panel |
| US8590272B2 (en) | 2010-06-07 | 2013-11-26 | Georgia-Pacific Gypsum Llc | Acoustical sound proofing materials and methods of making the same |
| JP7157163B2 (en) * | 2018-09-07 | 2022-10-19 | ＭＴ－Ｔｅｃ合同会社 | Vehicle sound absorbing material |
| CN114961019B (en) * | 2022-06-09 | 2024-03-22 | 江西省第十建筑工程有限公司 | Shear wall structure with shock mount |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FI29753A (en) * | 1958-06-10 | Holm Claes | Midsole impact sound insulation method |
-
1974
- 1974-05-30 SE SE7407174A patent/SE383646B/en not_active IP Right Cessation
-
1975
- 1975-05-23 FR FR7516076A patent/FR2273132B1/fr not_active Expired
- 1975-05-26 NO NO751853A patent/NO141378C/en unknown
- 1975-05-27 NL NLAANVRAGE7506215,A patent/NL176694C/en not_active IP Right Cessation
- 1975-05-27 IT IT23773/75A patent/IT1038540B/en active
- 1975-05-28 CA CA227,973A patent/CA1024717A/en not_active Expired
- 1975-05-28 DE DE2523710A patent/DE2523710C3/en not_active Expired
- 1975-05-28 BR BR4317/75A patent/BR7503374A/en unknown
- 1975-05-29 FI FI751585A patent/FI55552C/en not_active IP Right Cessation
- 1975-05-29 DK DK241075AA patent/DK139201B/en not_active IP Right Cessation
- 1975-05-30 JP JP6520375A patent/JPS548976B2/ja not_active Expired
- 1975-05-30 BE BE156885A patent/BE829710A/en not_active IP Right Cessation
- 1975-05-30 GB GB23635/75A patent/GB1514516A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NO751853L (en) | 1975-12-02 |
| FI55552B (en) | 1979-04-30 |
| DK139201C (en) | 1979-06-11 |
| SE7407174L (en) | 1975-12-01 |
| DE2523710B2 (en) | 1980-10-02 |
| DK139201B (en) | 1979-01-08 |
| IT1038540B (en) | 1979-11-30 |
| FR2273132B1 (en) | 1982-05-28 |
| DE2523710A1 (en) | 1975-12-11 |
| FI55552C (en) | 1979-08-10 |
| JPS548976B2 (en) | 1979-04-20 |
| CA1024717A (en) | 1978-01-24 |
| NO141378C (en) | 1980-03-12 |
| DE2523710C3 (en) | 1985-03-21 |
| DK241075A (en) | 1975-12-01 |
| NL176694B (en) | 1984-12-17 |
| SE383646B (en) | 1976-03-22 |
| BE829710A (en) | 1975-09-15 |
| GB1514516A (en) | 1978-06-14 |
| NL176694C (en) | 1985-05-17 |
| JPS5118120A (en) | 1976-02-13 |
| NL7506215A (en) | 1975-12-02 |
| FR2273132A1 (en) | 1975-12-26 |
| FI751585A (en) | 1975-12-01 |
| BR7503374A (en) | 1976-04-27 |
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