WO2014192289A1 - 減衰材料及びその減衰材料を用いた振動減衰部材並びにその振動減衰部材を組み込んだ免震装置 - Google Patents
減衰材料及びその減衰材料を用いた振動減衰部材並びにその振動減衰部材を組み込んだ免震装置 Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
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- C08K3/14—Carbides
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/28—Nitrogen-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/01—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L21/00—Compositions of unspecified rubbers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L45/00—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers
- C08L45/02—Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring system; Compositions of derivatives of such polymers of coumarone-indene polymers
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
- C08L65/02—Polyphenylenes
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L93/00—Compositions of natural resins; Compositions of derivatives thereof
- C08L93/04—Rosin
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- 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
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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
- F16F1/00—Springs
- F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
- F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
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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
- F16F9/306—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 of the constrained layer type, i.e. comprising one or more constrained viscoelastic layers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
Definitions
- the present invention relates to a damping material suitable for use in a vibration damping member incorporated in a seismic isolation device or the like having a laminated elastic body, a vibration damping member using the damping material, and a seismic isolation device incorporating the vibration damping member. .
- a seismic isolation device having a laminated elastic body in which an elastic material layer and a rigid material layer are alternately laminated and a lead plug filled in a cylindrical hollow portion defined by the inner peripheral surface of the laminated elastic body is a patent.
- Documents 1 and 2 while supporting the load of the structure, transmission of ground vibration due to earthquakes etc. to the structure is prevented as much as possible by the laminated elastic body, and vibration transmitted to the structure is suppressed. It is installed between the ground and the structure so as to be attenuated as quickly as possible by the lead plug.
- Such a lead plug used in a seismic isolation device preferably absorbs vibration energy, and even after plastic deformation, it easily recrystallizes due to the heat generated along with the vibration energy absorption and does not cause mechanical fatigue. It is extremely excellent as an energy absorber.
- Patent Document 3 proposes a seismic isolation device in which a plug manufactured from a composition in which a powder such as iron powder is blended with an elastomer composition is incorporated, but even with such a seismic isolation device, surface pressure dependency is also known. Is not taken into account.
- the present invention has been made in view of the above-described points, and an object thereof is to incorporate a damping material suitable for use in a vibration damping member, a vibration damping member using the damping material, and the vibration damping member.
- the purpose is to provide a seismic isolation device.
- the damping material according to one aspect of the present invention basically includes a thermally conductive filler, graphite, and tackifier resin.
- the damping material according to another aspect of the present invention includes a thermally conductive filler, graphite having an average particle size exceeding 100 ⁇ m, and a tackifier resin.
- the damping material according to still another embodiment of the present invention contains 40 to 70% by volume of a heat conductive filler, 10 to 50% by volume of graphite, and 10 to 30% by volume of tackifier resin.
- the damping material according to still another aspect of the present invention includes a thermally conductive filler that attenuates applied vibration by mutual friction, graphite that attenuates applied vibration by friction with at least the thermally conductive filler, and a tackifier.
- tackiness is imparted by a tackifier resin.
- natural graphite such as artificial graphite and scaly graphite can be exemplified as graphite, but in a preferred example, the graphite is scaly graphite.
- the damping material of the present invention may further contain at least one of vulcanized rubber powder and crystalline polyester resin as another component, and the blending ratio of the vulcanized rubber powder is based on the above damping material, Preferably, it is 40% by volume or less, more preferably 7-30% by volume, and the blending ratio of the crystalline polyester resin is preferably more than 0% by volume and 20% by volume or less, more preferably 0% by volume with respect to the damping material. More than 15% by volume.
- the thermally conductive filler contains one or more of metal oxide, metal nitride, metal carbide and metal hydroxide particles, and the tackifier resin (tackifying resin) is And rosin, rosin derivatives and other rosin resins, and terpene resins such as terpene resins and other natural resins, and petroleum resins, phenol resins, coal resins and terpene resins and other synthetic resins.
- tackifier resin tackifying resin
- rosin, rosin derivatives and other rosin resins, and terpene resins such as terpene resins and other natural resins, and petroleum resins, phenol resins, coal resins and terpene resins and other synthetic resins.
- the columnar vibration damping member such as the plug of the present invention made of the damping material is defined by one end face, the other end face facing the one end face, and the side face bridging the one end face and the other end face.
- the relative bending deformation of the other end surface with respect to the one end surface in a parallel direction is allowed to attenuate the energy of the relative bending deformation, and the vibration damping member has sufficient damping performance and displacement followability.
- after deformation is caused by external force such as vibration or impact it is fixed again and restored to the state before deformation.
- the seismic isolation device of the present invention includes a laminated elastic body in which a rigid material layer having rigidity and an elastic material layer having elasticity are alternately laminated, and a cylindrical hollow defined at least on the inner peripheral surface of the laminated elastic body. And a cylindrical plug portion disposed in the cylindrical hollow portion, and the cylindrical plug is made of the vibration damping material.
- the cylindrical plug is a laminated elastic body. At the same time, the load in the stacking direction of the structure is supported.
- a vibration damping member suitable for use in a vibration damping member a vibration damping member such as a plug having performance such as damping performance and displacement followability, and excellent damping performance and stable strain dependence are exhibited. It is possible to provide a seismic isolation device having temperature-dependent and surface pressure-dependent characteristics.
- FIG. 1 is a longitudinal sectional view of a preferred example of an embodiment of the seismic isolation device of the present invention.
- FIG. 2 is an explanatory diagram showing the relationship between the horizontal displacement and the horizontal load in the example shown in FIG.
- FIG. 3 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at a vertical surface pressure of 5 MPa.
- FIG. 4 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at a vertical surface pressure of 10 MPa.
- FIG. 5 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at a vertical surface pressure of 15 MPa.
- FIG. 1 is a longitudinal sectional view of a preferred example of an embodiment of the seismic isolation device of the present invention.
- FIG. 2 is an explanatory diagram showing the relationship between the horizontal displacement and the horizontal load in the example shown in FIG.
- FIG. 3 is
- FIG. 6 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load of the seismic isolation device of the present invention in the example shown in FIG. 1 at a vertical surface pressure of 20 MPa.
- FIG. 7 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at 0 ° C.
- FIG. 8 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at 20 ° C.
- FIG. 9 is an explanatory diagram of test results on the relationship between the horizontal displacement and the horizontal load in the example shown in FIG. 1 at 40 ° C.
- the damping material of the present invention basically includes a thermally conductive filler, graphite, and a tackifier resin that mainly functions as a tackifier.
- a thermally conductive filler graphite
- a tackifier resin that mainly functions as a tackifier.
- Thermally conductive fillers maintain the shape of graphite, especially flaky graphite, damping effect that dampens vibrations, etc. due to friction between each other in the damping material or friction between graphite, especially flaky graphite It exhibits a shape retention effect and a heat dissipation effect that dissipates frictional heat generated in the damping material.
- thermally conductive filler aluminum oxide (Al 2 O 3 ), calcium oxide (CaO 2 ), magnesium oxide (MgO), zinc oxide (ZnO), titanium oxide (TiO 2 ), silicon oxide (SiO 2 ), oxidation Metal oxides such as iron (Fe 2 O 3 ), nickel oxide (NiO) and copper oxide (CuO), and metal nitrides such as boron nitride (BN), aluminum nitride (AlN) and silicon nitride (Si 3 N 4 ) Boron carbide (B 4 C), aluminum carbide (Al 4 C 3 ), silicon carbide (SiC), titanium carbide (TiC) and other metal carbides and aluminum hydroxide [Al (OH) 3 ], magnesium hydroxide [Mg (OH) 2], sodium hydroxide (NaOH), calcium hydroxide [Ca (OH) 2], and the like zinc hydroxide [Zn (OH) 2]
- metal oxides, metal nitrides such as aluminum oxide (
- Particles such as magnesium, aluminum oxide, silicon oxide, aluminum nitride, silicon nitride, boron nitride, and silicon carbide have high thermal conductivity and are preferable as a thermally conductive filler from the viewpoint of dispersibility.
- heat conductive fillers having an average particle size of 10 ⁇ m to 50 ⁇ m are preferable, in particular, particles having different particle sizes, For example, by mixing a fine particle size metal oxide with an average particle size of about 10 ⁇ m and a coarse particle size metal oxide with an average particle size of about 50 ⁇ m in a ratio of 50:50 or 40:60, a dispersed particle size of about 50 ⁇ m By filling the gaps between the coarsely sized metal oxide particles with the finely sized metal oxide particles of about 10 ⁇ m, the continuity of the metal oxide particles can be obtained, and the heat dissipation is improved.
- heat dissipation can be enhanced by blending different metal oxide particles such as aluminum oxide particles and magnesium oxide particles in a ratio of 50:50.
- average particle size means a particle size at an integrated value of 50% in the particle size distribution obtained by a laser diffraction / scattering method.
- the mixing ratio of the thermally conductive filler selected from these metal oxide, metal nitride, metal carbide, metal hydroxide and metal carbide particles is suitably 40 to 70% by volume. If the blending ratio is less than 40% by volume, the damping property evaluated by the area of the region surrounded by the hysteresis (history) curve will be unstable, and if the blending ratio exceeds 70% by volume, the moldability of the damping material will be increased. It becomes difficult to produce a desired form, for example, a cylindrical plug.
- graphite examples include natural graphite such as artificial graphite and scaly graphite, but scaly graphite as a preferred example of graphite is scaly (flakes), and has a larger surface area than granular graphite. Effectively attenuates external forces such as vibrations and shocks by inter-layer sliding friction that occurs when the vibration damping member receives external forces such as vibrations and shocks, and friction with filler thermal conductive fillers, etc. To do.
- those having an average particle size of more than 100 ⁇ m are preferably used.
- flake graphite particles having a large contact area, preferably having an average particle size of 100 ⁇ m to 1000 ⁇ m, more preferably 500 ⁇ m to 700 ⁇ m, are used. Diameters are used.
- An appropriate blending ratio of graphite, particularly scaly graphite, is 10 to 50% by volume. If the blending ratio is less than 10% by volume, sufficient frictional damping will not be exhibited, and if the blending ratio exceeds 50% by volume, the moldability of the damping material may be deteriorated. The strength of the object, that is, the vibration damping member is lowered, and brittleness is developed.
- the tackifier resin gives the damping material tackiness and enables compression molding of the damping material.
- a vibration damping member such as a cylindrical plug formed by compression molding from a damping material containing a tackifier resin
- the tackifier resin exhibits an action of reducing the porosity, and vibration, impact, etc.
- the vibration damping member is deformed by an external force, the vibration damping member is re-adhered and restored to the vibration damping member before the deformation, so that the vibration damping member having excellent durability can be obtained.
- the mixing ratio of the tackifier resin is suitably 10 to 30% by volume.
- the blending ratio is less than 10% by volume, it is difficult to impart sufficient tackiness to the damping material, and if the blending ratio exceeds 30% by volume, the kneading workability and moldability of the damping material may be deteriorated.
- the tackifier resin is generally a thermoplastic resin having a molecular weight of several hundred to several thousand, and various natural resins and synthetic resins can be used. Specific examples of tackifier resins include rosin resins such as rosin and rosin derivatives, and natural resins such as terpene resins such as terpene resins, and synthetic resins such as petroleum resins, phenol resins, coal resins, and terpene resins. And at least one of these is selected and used.
- the tackifier resin used in the present invention has a ring and ball method softening point (JISK5601-2-2) or a ring and ball method softening point (JISK2207) of 150 ° C.
- a temperature of 80 to 120 ° C. is preferable. If the softening point is less than 80 ° C., the tackiness becomes severe at the time of kneading, so that the workability may be deteriorated. If the softening point exceeds 150 ° C., the viscosity becomes high and it becomes difficult to soften during processing. There is a risk of worsening the sex.
- rosins include natural rosins such as gum rosin, wood rosin, and tall rosin, stabilized rosin and polymerized rosin that have been disproportionated or hydrogenated using natural rosin, and further natural rosin to maleic acid, fumaric acid, and (meth) acrylic.
- natural rosins such as gum rosin, wood rosin, and tall rosin
- stabilized rosin and polymerized rosin that have been disproportionated or hydrogenated using natural rosin
- further natural rosin to maleic acid, fumaric acid, and (meth) acrylic examples thereof include unsaturated acid-modified rosin modified with an unsaturated acid such as an acid, and these can be used alone or in combination of two or more.
- rosin derivative various derivatives derived from the rosin can be used, and examples thereof include esterified products of the rosin, phenol-modified products, and esterified products thereof.
- the rosin esterified product refers to a product obtained by esterifying the rosin and a polyhydric alcohol.
- the polyhydric alcohol include dihydric alcohols such as ethylene glycol, diethylene glycol, propylene glycol, and neopentyl glycol.
- Trivalent alcohols such as glycerin, trimethylolethane and trimethylolpropane, tetrahydric alcohols such as pentaerythritol and diglycerin, and hexahydric alcohols such as dipentaerythritol, etc., which may be used alone or in combination The above can be used together.
- rosin esters that can be used as commercially available products include the following.
- Petroleum resin is obtained by polymerizing a fraction containing unsaturated hydrocarbon monomer by-produced by thermal decomposition such as petroleum naphtha. Specifically, aliphatic petroleum resin, aromatic petroleum resin, aliphatic Classified into aromatic petroleum resins and alicyclic petroleum resins (hydrogenated petroleum resins).
- aliphatic petroleum resins examples include olefins and dienes having 4 to 5 carbon atoms [olefins such as butene-1, isobutylene and pentene-1; dienes such as butadiene, piperylene (1,3-pentadiene) and isoprene].
- olefins such as butene-1, isobutylene and pentene-1
- dienes such as butadiene, piperylene (1,3-pentadiene) and isoprene
- C4 petroleum resins aliphatic petroleum resins obtained from fractions such as butadiene, piperylene and isoprene
- C4 petroleum fraction obtained from fractions such as butadiene, piperylene and isoprene
- aromatic petroleum resins examples include vinyl group-containing aromatic hydrocarbons having 8 to 10 carbon atoms (styrene, o-vinyltoluene, m-vinyltoluene, p-vinyltoluene, ⁇ -methylstyrene, ⁇ -Methyl styrene, indene, methyl indene, etc.) can be cited as a single polymer or a polymer in which two or more are used. Among them, from fractions such as vinyltoluene and indene (so-called "C9 petroleum fraction”) The resulting aromatic petroleum resin (so-called “C9 petroleum resin”) is preferred.
- aromatic petroleum resin examples include “Nisseki Neopolymer S, Nisseki Neopolymer L-90: Softening point 100 ° C.” manufactured by JX Nippon Oil & Energy Corporation, Nisseki Neopolymer 100: Softening point 100 ° C.
- Examples of the aliphatic / aromatic petroleum resins include copolymer petroleum resins (so-called “C5 / C9 copolymer resins”) obtained by copolymerizing the C5 petroleum fraction and the C9 petroleum fraction.
- copolymer petroleum resins so-called “C5 / C9 copolymer resins” obtained by copolymerizing the C5 petroleum fraction and the C9 petroleum fraction.
- “Petrotac 130: softening point 130 ° C.” all are trade names
- the softening point is measured according to JISK2207), “Quinton G100B: softening point 100 ° C.” and “Quinton G115: softening point 115 ° C.” (both are trade names, and the softening point is measured according to JISK2207) and Exon “Escollet ECR213: soften
- the alicyclic petroleum resin is mainly composed of hydrogenated petroleum resin obtained by hydrogenating the above aromatic petroleum resin or aliphatic / aromatic petroleum resin and dicyclopentadiene extracted from C5 fraction.
- hydrogenated petroleum resins obtained by hydrogenating the above aromatic petroleum resins or aliphatic / aromatic petroleum resins are representative, and specific examples of alicyclic petroleum resins include Arakawa Chemical Industries, Ltd.
- phenol resin a resol type phenol resin obtained by reacting various phenols with formaldehyde in the presence of an alkali catalyst, a novolak type phenol resin obtained by reacting in the presence of an acid catalyst, and a resol type phenol resin or a novolak type.
- rosin-modified phenol resins obtained by reacting a phenol resin with the natural rosin.
- the phenols include phenol, m-cresol, 3,5-xylenol, p-alkylphenol and resorcin. .
- Tamanol 100S (novolak): softening point 110 to 130 ° C.” and “Tamanol 100S (resol): softening point 100 to 115 ° C.” manufactured by Arakawa Chemical Industries, Ltd. (Alkyl group carbon number 8 alkylphenol resin): softening point 78-105 ° C. ”and Taoka Chemical Co., Ltd.“ Tacicol (alkyl group carbon number 8 alkylphenol resin): softening point 78-105 ° C. ”(both products And the softening point can be exemplified by the ring and ball method.
- coal-based resin examples include those obtained by polymerizing a mixture of coumarone, indene, styrene and the like in coal tar.
- Specific examples of coal-based resins include “Coumarone resin 95 ° C.” and “Coumarone resin 120 ° C.” manufactured by Kobe Oil Chemical Co., Ltd., “Coumarone resin NG4: softening point 95-100 ° C.” manufactured by Nippon Steel Chemical Co., Ltd.
- the terpene resin is usually a terpene monomer alone or a terpene monomer and an aromatic monomer or a terpene monomer and a phenol in the presence of a Friedel-Crafts type catalyst in an organic solvent. It may be a hydrogenated terpene resin obtained by polymerization and obtained by subjecting the obtained terpene resin to a hydrogenation treatment.
- the terpene resin include terpene resins such as ⁇ -pinene resin, ⁇ -pinene resin, aromatic modified terpene resin, terpene phenol resin, and hydrogenated terpene resin.
- terpene monomer examples include hemiterpenes having a carbon number of 5 such as isoprene, ⁇ -pinene, ⁇ -pinene, dipentene, d-limonene, myrcene, allocymene, osmene, ⁇ -ferrandrene, ⁇ -terpinene, ⁇ -terpinene, Terterolene, 1,8-cineole, 1,4-cineole, ⁇ -terpineol, ⁇ -terpineol, ⁇ -terpineol, sabinene, paramentadienes, carenene and other monoterpenes having 10 carbon atoms, caryophyllene, longifolene, etc.
- hemiterpenes having a carbon number of 5 such as isoprene, ⁇ -pinene, ⁇ -pinene, dipentene, d-limonene, myrcene, allocymen
- Examples thereof include sesquiterpenes having 15 carbon atoms and diterpenes having 20 carbon atoms.
- aromatic monomers include styrene, ⁇ -methylstyrene, vinyltoluene, and isopropenyltoluene.
- phenols include Phenol, cresol, xylenol, bisphenol A, etc. It can be mentioned.
- terpene resins include “YS Resin PX1000: Softening point 100 ⁇ 5 ° C.”, “YS Resin PX1150: Softening point 115 ⁇ 5 ° C.” and “YS Resin PX1250: Softening point 125 ⁇ 5 ° C.” (All are trade names, and the softening point is based on the ring and ball method).
- Specific examples of hydrogenated terpene resins include “Clearon P105: Softening point 105 ⁇ 5 ° C.”, “Clearon P115: manufactured by Yashara Chemical Co., Ltd.
- Softening point 105 ⁇ 5 ° C. “Clearon P125: Softening point 125 ⁇ 5 ° C.”, “Clearon P135: Softening point 135 ⁇ 5 ° C.” (all are trade names, and the softening point is based on ring and ball method).
- Specific examples of the aromatic modified terpene resin include “YS resin TO105: softening point 105 ⁇ 5 ° C.”, “YS resin TO115: softening point 115 ⁇ 5 ° C.” and “YS resin TO125: softening point” manufactured by Yashara Chemical Co., Ltd. 125 ⁇ 5 ° C.
- terpene phenol resin examples include“ Tamanol 901: Softening point 120 to 135 ° C. ”manufactured by Arakawa Chemical Co., Ltd. “YS Polystar U115: Softening point 115 ⁇ 5 ° C.”, “YS Polystar U130: Softening point 130 ⁇ 5 ° C.”, “YS Polystar T100: Softening point 100 ⁇ 5 ° C.”, “YS Polystar T115: Softening” Point 115 ⁇ 5 ° C. ”,“ YS polystar T130: softening point 130 ⁇ 5 ° C. ”and“ YS polystar T145: softening point 145 ⁇ 5 ° C. ” (Both are trade names, softening point ring and ball method according to) may be mentioned and the like.
- At least one of vulcanized rubber powder and crystalline polyester resin can be added to the damping material composed of the above-described heat conductive filler, graphite, and tackifier resin.
- the vulcanized rubber powder plays a role of imparting flexibility to a vibration damping member such as a cylindrical plug obtained by molding a damping material to promote the ease of movement of the vibration damping member and increase the amount of energy absorption.
- a vibration damping member such as a cylindrical plug obtained by molding a damping material to promote the ease of movement of the vibration damping member and increase the amount of energy absorption.
- vulcanized rubber powder natural rubber (NR), polyisoprene rubber (IR), polybutadiene rubber (BR), styrene-butadiene rubber (SBR), chloroprene rubber (CR), ethylene-propylene rubber (EPM, EPDM), Nitrile rubber (NBR), butyl rubber (IIR), halogenated butyl rubber, acrylic rubber (ACM), ethylene vinyl acetate rubber, and an average particle size of 90 ⁇ m formed by pulverizing vulcanized rubber such as ethylene-methyl acrylate copolymer A pulverized powder is used, and
- the blending ratio of the vulcanized rubber powder is from a heat conductive filler, graphite, in particular a scaled graphite and tackifier resin, or a heat conductive filler, graphite, particularly scaly graphite, a tackifier resin and a crystalline polyester resin. It is preferably 40% by volume or less, more preferably 7 to 30% by volume with respect to the damping material.
- Crystalline polyester resin has the effect of making the hysteresis (history) shape of a seismic isolation device incorporating a vibration damping member such as a cylindrical plug obtained by molding a damping material into a bilinear type.
- the blending ratio of the crystalline polyester resin is a heat conductive filler, graphite, especially a damped material composed of flake graphite and tackifier resin, or a heat conductive filler, graphite, especially, flake graphite, tackifier resin and
- the amount is preferably 20% by volume or less, more preferably 0 to 15% by volume with respect to the damping material made of vulcanized rubber powder.
- Examples of crystalline polyester resins include aliphatic polyesters such as polyglycolic acid, polylactic acid, polycaprolactone and polyethylene succinate, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, polyethylene naphthalate, polybutylene naphthalate and Examples include semi-aromatic polyesters such as polycyclohexanedimethylene terephthalate, ester elastomers, and the like.
- Specific examples of the crystalline polyester resin include “Byron GM900”, “Byron GM920”, “Byron GM990” (all trade names) manufactured by Toyobo Co., Ltd., and the like.
- the molecular weight of the crystalline polyester resin is preferably 10,000 to 35,000, more preferably 15,000 to 30,000.
- the vibration damping member made of the damping material and the damping material of the present invention is manufactured as follows.
- the first step a predetermined amount of heat conductive filler, each component of flake graphite and tackifier resin powder as graphite, or each component obtained by adding at least one of vulcanized rubber powder and crystalline polyester resin to these components
- the mixture is weighed to a ratio of 1 and put into a stirring mixer such as a Banbury mixer and uniformly mixed to prepare a mixture.
- the mixture is put into a kneader (kneader) and heated and kneaded to produce a damping material.
- the damping material manufactured by the above method is filled into a hollow cylindrical portion of a mold heated to a temperature of 80 to 120 ° C. and compression molded at a molding pressure of 0.1 to 1.0 ton / cm 2. To do. After compression molding, the mold is gradually cooled while maintaining a pressurized state in the cylindrical hollow part of the mold, and then taken out from the cylindrical hollow part of the mold to produce a vibration damping member such as a cylindrical plug.
- the vibration damping member manufactured in this way can be used as a cylindrical plug for a seismic isolation device, for example.
- a seismic isolation device according to the present invention, in which the cylindrical plug is made of the vibration damping material described above, has characteristics of high damping performance and surface pressure dependency. A preferred example of such a seismic isolation device will be described in detail below with reference to the drawings.
- the seismic isolation device 1 of this example includes an elastic material layer made of an elastic plate 2 such as an annular rubber, a plurality of annular thin-walled rigid steel plates 3 and annular thick-walled rigid steel plates 4 and 5.
- a dense elastic material layer 6 formed by alternately laminating rigid material layers and a cylindrical hollow portion 8 defined by at least the inner peripheral surface 7 of the laminated elastic body 6 and densely arranged from a vibration damping material.
- An annular shear key 13 that fixes the rigid steel plates 4 and 5 to each other in the shearing direction (horizontal direction) F is provided, and the cylindrical hollow portion 8 in which the cylindrical plugs 9 are densely arranged has an inner peripheral surface. 7 plus downward shear It is defined by the upper surface 14 and lower surface 15 of the upper shear keys 13 over 13.
- the thick rigid steel plates 4 and 5 are embedded and arranged in the elastic material layers on the upper and lower end surfaces of the laminated elastic body 6, and the lower end portion 16 of the cylindrical plug 9 is a thick rigid steel plate.
- the seismic isolation device 1 is densely arranged at the lower end portion of the cylindrical hollow portion 8 defined by the inner peripheral surface of the cylinder 5, and the upper end portion 17 of the cylindrical plug 9 is a columnar shape defined by the inner peripheral surface of the thick rigid steel plate 4. It is densely arranged at the upper end of the hollow portion 8.
- the lower flange plate 11 side is connected to the foundation 18, and the upper flange plate 12 side is connected to the structure 19, and the stacking direction (vertical direction) of the structure 19 is formed by the laminated elastic body 6 and the cylindrical plug 9. ) Used to support V load.
- the columnar plug 9 as a columnar vibration damping member made of a vibration damping material has a circular one end surface 31, a circular other end surface 32 facing the one end surface 31, and one end surface 31 and the other end surface 32 bridged.
- the relative deformation of the other end surface 32 with respect to the one end surface 31 in the horizontal direction F, which is defined by the cylindrical side surface 33 and is parallel to the one end surface 31, is allowed. Attenuates.
- the elastic plate 2 made of an annular rubber plate or the like and the thin-walled rigid steel plate 3 made of an annular rigid metal plate or the like are alternately laminated, and the lower surface and the upper surface thereof are laminated.
- An annular laminated elastic body 6 is prepared, in which thick rigid steel plates 4 and 5 made of an annular rigid metal plate or the like are arranged, and these are fixed to each other by vulcanization adhesion under pressure in a mold, etc.
- the cylindrical plug 9 is press-fitted into the cylindrical hollow portion 8.
- the cylindrical plug 9 is press-fitted by pressing the cylindrical plug 9 into the cylindrical hollow portion 8 with a hydraulic ram or the like so that the cylindrical plug 9 does not generate a gap with respect to the inner peripheral surface 7 of the laminated elastic body 6. Do. After press-fitting the columnar plug 9, the shear key 13 is placed at the lower end and the upper end of the cylindrical hollow portion 8, its upper surface 14 is at one end surface 31 of the columnar plug 9, and its lower surface 15 is at the other end surface of the columnar plug 9.
- the upper and lower flange plates 12 and 11 are attached to the thick rigid steel plates 4 and 5 via bolts 10 respectively.
- the cylindrical covering layer 20 made of, for example, is preferably formed integrally.
- a cylindrical plug 9 is press-fitted into a cylindrical hollow portion 8, and a structure 19 is moved in a horizontal direction F with respect to a foundation 18 due to vibration, impact, or the like, and the horizontal direction (shear direction).
- the cylindrical plug 9 together with the laminated elastic body 6 shears and deforms in the horizontal direction F to absorb the vibration energy in the horizontal direction F, and quickly attenuates external forces such as vibration and impact. be able to.
- a vibration damping member manufactured from a damping material made of thermal conductive filler, flake graphite as graphite and tackifier resin, or a damping material containing at least one of vulcanized rubber powder and crystalline polyester resin.
- the seismic isolation device 1 in which the cylindrical plug 9 is press-fitted into the cylindrical hollow portion 8 exhibits excellent damping performance and has surface pressure-dependent characteristics.
- the cylindrical plug 9 is deformed or broken by an external force such as vibration or impact, the cylindrical plug 9 is re-fixed to be restored with characteristics before deformation.
- Tables 1 and 2 show components of thermal conductive filler, flake graphite as graphite and tackifier resin, or components obtained by adding at least one of vulcanized rubber powder and crystalline polyester resin to these components. Weighed to a blending ratio (volume%), put them into a Banbury mixer, and stirred and mixed uniformly to prepare a mixture composed of each component composition. The mixture was put into a kneader heated to a temperature of 120 ° C. and kneaded while heating to produce a damping material. The damping material was filled into a cylindrical hollow portion of a mold heated to a temperature of 120 ° C., and compression molded at a molding pressure of 0.6 ton / cm 2 .
- the damping material is gradually cooled while maintaining a pressurized state in the cylindrical hollow portion of the mold, cooled to room temperature, and then a circle made of a vibration damping material having a diameter ⁇ of 50 mm from the cylindrical hollow portion of the mold.
- the columnar plug was taken out.
- rosin ester of tackifier resin is “Neotor 125HK” manufactured by Harima Chemicals
- aromatic petroleum resin is “Nisseki Neopolymer 120” manufactured by JX Nippon Mining & Energy.
- Coumarone resin is “Coumarone resin 120 ° C.” manufactured by Kobe Oil Chemical Co., Ltd.
- Coumarone / indene copolymer resin is “Knit resin coumarone V-120” manufactured by Nikko Chemical Co., Ltd.
- Terpene resin is Yashara Chemical Co., Ltd.
- the damping performance of the seismic isolation device was evaluated by the following method.
- FIG. 2 shows the relationship (horizontal restoring force characteristic diagram) between the horizontal displacement (horizontal axis ⁇ ) of the upper end relative to the lower end of the laminated elastic body and the horizontal load (horizontal force) (vertical axis Q) of the seismic isolation device.
- the seismic isolation device is loaded with the vertical surface pressures (vertical loads) P of 5 MPa, 10 MPa, 15 MPa, and 20 MPa described above, respectively, and the section loads Qd at the respective vertical surface pressures P are obtained.
- the change in the section load Qd due to the surface pressure P was calculated by a ratio (magnification) with the section load Qd having a vertical surface pressure of 5 MPa as 1.00, and the surface pressure dependency was evaluated by this ratio.
- the seismic isolation device in which this ratio increases with an increase in the vertical surface pressure P generates a section load Qd corresponding to the vertical surface pressure P, and can exhibit a seismic isolation effect corresponding to a structure having a different load to be supported. Will have.
- the seismic isolation device in which the cylindrical plug having the composition shown in Tables 1 and 2 is press-fitted has an intercept load as the vertical surface pressure P increases.
- the ratio of the intercept load Q at each vertical surface pressure P to the intercept load at a vertical surface pressure of 5 MPa is 10 MPa, which is twice the vertical surface pressure P with respect to 5 MPa.
- the vertical surface pressure P is 15 MPa, 3 times the 5 MPa, 1.41 to 1.84, and the vertical surface pressure P is 4 times the 5 MPa, 20 MPa, 1.58 to 2.26
- the value of the intercept load Qd increases according to the vertical surface pressure P
- the seismic isolation effect according to the loaded load that becomes the vertical surface pressure P can be obtained.
- 3 to 6 show the relationship between the horizontal displacement ⁇ (mm) and the horizontal load (horizontal force) Q (kN) in the seismic isolation device in which the cylindrical plug having the component composition of Example 13 is press-fitted.
- the test result (hysteresis curve) of a horizontal restoring force characteristic is shown.
- the ratio of the intercept load at a vertical surface pressure of 5 MPa and the intercept load at each of the vertical surface pressures of 10 MPa, 15 MPa, and 20 MPa in a seismic isolation device in which a lead plug is press-fitted as a cylindrical plug is 1 at a vertical surface pressure of 10 MPa. .02, 1.04 at a vertical surface pressure of 15 MPa, and 1.06 at a vertical surface pressure of 20 MPa.
- a seismic isolation device in which a lead plug is press-fitted even if the supporting load is different, the section load hardly changes. From the viewpoint of surface pressure dependence that exhibits seismic isolation effects according to structures with different loads, the seismic isolation device with such lead plugs inserted is inferior to the seismic isolation device of this example.
- FIG. 7 to FIG. 9 show the test of the relationship between the horizontal displacement ⁇ and the horizontal load Q at 0 ° C., 20 ° C. and 40 ° C. with respect to the seismic isolation device into which the cylindrical plug having the component composition of Example 13 was press-fitted.
- the results (hysteresis curves) are shown, and it can be seen from these figures that the seismic isolation device of this example has a stable temperature dependence.
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Abstract
Description
荒川化学工業社製の「ペンセルA:軟化点100℃以上」、「ペンセルAZ:軟化点95~105℃」、「エステルガムAA-G:軟化点82℃以上」及び「エステルガム105:軟化点100~110℃」並びにハリマ化成社製の「ネオトールG2:軟化点97~104℃」、「ネオトール101N:軟化点93~103℃」、「ネオトール125HK:軟化点120~130℃」、「ハリタックPH:軟化点93~103℃」、「ハリタックF105:軟化点97~107℃」、「ハリタックFK100:軟化点96~102℃」及び「ハリタックFK125:軟化点122~128℃」(いずれも商品名であり、軟化点は環球法による)。
荒川化学工業社製の「ペンセルD-125:軟化点120~130℃」、「ペンセルD-135:軟化点130~140℃」(いずれも商品名であり、軟化点は環球法による)。
荒川化学工業社製の「スーパーエステルA-75:軟化点70~80℃」、「スーパーエステルA-100:軟化点95~105℃」、「スーパーエステルA-115:軟化点108~120℃」及び「スーパーエステルA-125:軟化点120~130℃」(いずれも商品名であり、軟化点は環球法による)。
ハリマ化成社製の「ハリマックT-80:軟化点80~90℃」、「ハリマックR-100:軟化点100~110℃」、「ハリマックM-453:軟化点100~110℃」、「ハリタック4851:軟化点95~105℃」、「ハリタック4821:軟化点100~115℃」、「ハリタック4740:軟化点115~125℃」及び「ハリタック28JA:軟化点130~140℃」(いずれも商品名であり、軟化点は環球法による)。
荒川化学工業社製の「エステルガム(商品名):軟化点80℃以上」(商品名であり、軟化点は環球法による)。
熱導電性フィラー、黒鉛としての鱗片状黒鉛及びタッキファイヤー樹脂の各成分又はこれらに加硫ゴム粉末及び結晶性ポリエステル樹脂のうちの少なくとも一方の成分を加えた各成分を表1及び表2に示す配合割合(体積%)に秤量し、これらをバンバリーミキサーに投入し、均一に撹拌混合して各成分組成からなる混合物を作製した。混合物を、120℃の温度に加熱したニーダーに投入し、加熱しながら混錬して減衰材料を作製した。減衰材料を120℃の温度に加熱した金型の円柱状中空部に充填し、成形圧力0.6トン/cm2で圧縮成形した。成形後、金型の円柱状中空部で加圧状態を保持しながら減衰材料を徐冷し、常温まで冷却した後、金型の円柱状中空部から直径φが50mmの振動減衰材料からなる円柱状プラグを取り出した。
上記した免震装置に、鉛直方向に5MPa、10MPa、15MPa及び20MPaの夫々の面圧Pを負荷した状態で水平方向Fに0.33Hzの加振周波数で加振して規定変位の水平方向剪断変形(±48mm=±100%剪断歪)を生じさせた。積層弾性体の下端に対するその上端の水平方向の変位(横軸δ)と免震装置の水平方向荷重(水平力)(縦軸Q)との関係(水平復元力特性図)を示す図2において、ヒステリシス曲線(実線)で囲まれた領域の面積ΔWが広くなるほど、振動エネルギを多く吸収できることを意味するが、ここでは、水平方向剪断変形、即ち±100%剪断歪における切片荷重(降伏荷重)Qd(ヒステリシス曲線が縦軸Qと交差する点での水平方向荷重Qd1及び│Qd2│を用いて、式:Qd=(Qd1+│Qd2│)/2で計算した値)で振動減衰材からなる円柱状プラグの減衰性能を評価(切片荷重Qdが大きくなるほど、ヒステリシス曲線で囲まれた領域の面積が広くなり、減衰性能が優れることを示す)した。
免震装置に、先に示した5MPa、10MPa、15MPa及び20MPaの鉛直面圧(鉛直荷重)Pを夫々負荷し、各鉛直面圧Pにおける切片荷重Qdを求め、10MPa、15MPa及び20MPaの各鉛直面圧Pによる切片荷重Qdの変化を、鉛直面圧5MPaの切片荷重Qdを1.00とした比(倍率)で算出して、この比で面圧依存性を評価した。この比が鉛直面圧Pの増加に伴って増加する免震装置は、鉛直面圧Pに応じた切片荷重Qdを発生し、支持する荷重の異なる構造物に応じた免震効果を発揮できる特性を有することになる。
2 弾性板
3 薄肉剛性鋼板
4、5 厚肉剛性鋼板
6 積層弾性体
8 円柱状中空部
9 円柱状プラグ
Claims (17)
- 付加される振動を相互の摩擦により減衰させる熱伝導性フィラーと、付加される振動を少なくとも熱伝導性フィラーとの摩擦により減衰させる黒鉛と、タッキファイヤー樹脂とを含んでおり、タッキファイヤー樹脂により粘着性が付与されている減衰材料。
- 黒鉛は、100μmを超える平均粒径を有している請求項1に記載の減衰材料。
- 熱伝導性フィラー、平均粒径が100μmを超える黒鉛及びタッキファイヤー樹脂を含んでいる減衰材料。
- 熱伝導性フィラーを40~70体積%と、黒鉛を10~50体積%と、タッキファイヤー樹脂を10~30体積%とを含んでいる請求項1から3のいずれか一項に記載の減衰材料。
- 熱伝導性フィラーと、黒鉛と、タッキファイヤー樹脂とを含んでいる減衰材料。
- 黒鉛は、100μmを超える平均粒径を有している請求項5に記載の減衰材料。
- 熱伝導性フィラーを40~70体積%と、黒鉛を10~50体積%と、タッキファイヤー樹脂を10~30体積%とを含んでいる請求項5又は6に記載の減衰材料。
- 熱伝導性フィラーを40~70体積%と、黒鉛を10~50体積%と、タッキファイヤー樹脂を10~30体積%とを含んでいる減衰材料。
- 黒鉛は、100μmを超える平均粒径を有している請求項8に記載の減衰材料。
- 黒鉛は、鱗片状黒鉛である請求項1から9に記載の減衰材料。
- 加硫ゴム粉末及び結晶性ポリエステル樹脂のうちの少なくとも一方を更に含んでいる請求項1から10のいずれか一項に記載の減衰材料。
- 加硫ゴム粉末を7~30体積%と結晶性ポリエステル樹脂を0体積%を超え20体積%以下とのうちの少なくとも一方を含んでいる請求項11に記載の減衰材料。
- 熱伝導性フィラーは、金属酸化物、金属窒化物、金属炭化物及び金属水酸化物の粒子の一種若しくは二種以上を含んでいる請求項1から12のいずれか一項に記載の減衰材料。
- タッキファイヤー樹脂は、ロジン、ロジン誘導体等のロジン系樹脂及びテルペン樹脂等のテルペン系樹脂等の天然樹脂並びに石油樹脂、フェノール樹脂、石炭系樹脂及びテルペン系樹脂等の合成樹脂の少なくとも一種を含む請求項1から13のいずれか一項に記載の減衰材料。
- 請求項1から14のいずれか一項に記載の減衰材料からなっており、一端面及びこの一端面に対面する他端面並びに一端面及び他端面を橋絡した側面で規定されていると共に一端面に対して平行な方向における他端面の一端面に対する相対的撓み変形を許容して当該相対的撓み変形のエネルギを減衰する柱状の振動減衰部材。
- 剛性を有する剛性材料層と弾性を有する弾性材料層とが交互に積層されてなる積層弾性体と、少なくともこの積層弾性体の内周面で規定された円柱状中空部と、この円柱状中空部に圧入された円柱状プラグとを備えており、円柱状プラグは、請求項1から14のいずれか一項に記載の減衰材料からなる免震装置。
- 円柱状プラグは、積層弾性体と共に積層方向の荷重を支持するようになっている請求項16に記載の免震装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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CN201480031307.6A CN105308354B (zh) | 2013-05-30 | 2014-05-27 | 阻尼材料、使用该阻尼材料的振动阻尼部件以及安装了该振动阻尼部件的隔震装置 |
KR1020157033681A KR101798609B1 (ko) | 2013-05-30 | 2014-05-27 | 감쇠 재료 및 그 감쇠 재료를 이용한 진동 감쇠 부재, 그 진동 감쇠 부재를 내장한 면진 장치 |
NZ713711A NZ713711A (en) | 2013-05-30 | 2014-05-27 | Damping material, vibration damping member using the damping material, and seismic isolation apparatus incorporating the vibration damping member |
EP14803993.6A EP3006772A4 (en) | 2013-05-30 | 2014-05-27 | Damping material, vibration-damping member using said damping material, and seismic isolator into which said vibration-damping member has been incorporated |
US14/892,749 US20160122498A1 (en) | 2013-05-30 | 2014-05-27 | Damping material, vibration damping member using the damping material, and seismic isolation apparatus incorporating the vibration damping member |
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JP2013-114724 | 2013-05-30 | ||
JP2013114724 | 2013-05-30 | ||
JP2013238066A JP6439244B2 (ja) | 2013-05-30 | 2013-11-18 | 免震装置 |
JP2013-238066 | 2013-11-18 |
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Cited By (4)
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CN105569205A (zh) * | 2016-02-05 | 2016-05-11 | 福州市规划设计研究院 | 一种电磁永磁组合悬浮隔振装置 |
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WO2016084363A1 (ja) * | 2014-11-28 | 2016-06-02 | オイレス工業株式会社 | 免震装置 |
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CN105569205A (zh) * | 2016-02-05 | 2016-05-11 | 福州市规划设计研究院 | 一种电磁永磁组合悬浮隔振装置 |
Also Published As
Publication number | Publication date |
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CN105308354A (zh) | 2016-02-03 |
NZ713711A (en) | 2017-02-24 |
US20160122498A1 (en) | 2016-05-05 |
JP6439244B2 (ja) | 2018-12-19 |
KR20160003786A (ko) | 2016-01-11 |
KR101798609B1 (ko) | 2017-11-16 |
JP2015007468A (ja) | 2015-01-15 |
TW201506277A (zh) | 2015-02-16 |
CN105308354B (zh) | 2017-10-17 |
EP3006772A4 (en) | 2017-01-18 |
EP3006772A1 (en) | 2016-04-13 |
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