JP2012122316A - Vibration control and sound isolation device for supporting floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an epoch-making vibration control and sound isolation device excellent in vibration control performance, sound isolation performance, and walking performance by joining a floor slab and an underfloor structure with each other so as to insulate vibration and making a low height and easily assembled vibration control and sound isolation structure; capable of drastically reducing the cost by thinning the floor slab in a newly constructed building structure; and capable of using an advantage of an existing floor slab and ensuring an essential floor living space.SOLUTION: A vibration control and sound isolation device supports an arbitrary position in the lower part of a sleeper beam of a floor structure in a building, and comprises: a reverse π-shaped beam placing seating face for placing and supporting the lower part of the sleeper beam via an elastic buffer body; a pair of seating legs for mounting the upper part of the sleeper beam on each of both sides of the beam placing seat face; and a π-shaped pedestal mounted on the lower part of each of the seating legs with an elastic buffer body interposed between the seating leg and the floor slab, the pedestals being connected with each other by a tie arm.

Description

  The present invention relates to a revolutionary vibration control and sound insulation device that enhances vibration control performance, sound insulation performance, and walking performance to support an underfloor structure on a floor slab (concrete slab) of a concrete frame.

  Conventionally, for example, in a building equipped with a concrete frame with a regular beam structure, the floor structure has a plurality of bundles on the floor slab and anchors a large pull on the frame edge. Since the joist is anchored and the floor plate body is laid on top of the joist, the vibration applied to the floor plate body is increased from the joist, the large pull and the bundle through the floor slab, It is transmitted to other living spaces, especially downstairs living spaces, as vibration and noise. For this reason, the floor structure is in a trend that requires the above-described vibration suppression and noise suppression measures.

  Under such trends, floor structures have been developed with various improvements to reduce vibration and noise insulation under floor structures in order to reduce vibration noise transmitted from floor boards to other living spaces via underfloor structures. It was.

The contents of the development are as shown in the following utility model literature 1 to utility model literature 1, and between the floor slab and the floor board body, the interior of the underfloor structure body, the underfloor structure body and the floor board body. While it is ambiguous, such as appropriately placing spaces, air circulation gaps, elastic shock absorbers (materials), etc., these are simply adopted to improve vibration damping performance, sound insulation performance and walking performance. As a result of the significant increase in the height from the floor slab to the floor slab and the increase in weight, the floor slab must also be made to be an enhancement body such as a scale-up. On the other hand, the space on the floor is not affected by the floor structure, and has a restriction that a space having a necessary height for residence needs to be secured. For these reasons, it is extremely difficult to reduce floor slab and floor structure costs.
Furthermore, from the viewpoint of promoting the extension of the life of the building and environmental measures, under the present situation where the regulation of remodeling of the building, the suspension work of the floor slab concrete in the building and the disposal of the scraps are strictly regulated, Renovation to a sound-insulating floor structure is extremely difficult in consideration of making use of the existing floor slab and securing an indispensable space on the floor.

Patent No. 4219653 “Floor Renovation Method for Buildings with Laying Flooring on Bundles” Outline: Bundled stones, wooden large-drawing material, joist material, scraping material, and flooring material were sequentially laid on the floor slab. In the floor renovation method for floor structures, boulders, large-drawn materials, and joists are reused, high adjusters and cushioning materials are placed on the stones, and scraping materials and flooring materials are laid on the joists. Floor repair method. Utility model No. 2646469 “Floor structure of apartment buildings with RC structures, gymnasiums, office buildings, classrooms, etc.” Overview: Hydrolysis buffer material is provided between floor base material and flooring material such as concrete slabs A floor structure in which a flooring material and a finishing material provided with ventilation means and a finishing material and a baseboard are provided to allow air flow under the floor and indoors. Patent No. 2719550 “Floor Structure of Concrete Building” Outline: Concrete in which a plastic foam is joined on a concrete slab, and a lower surface void-type floor base material, a breathable material, and a floor finishing material are sequentially stretched thereon. Building floor structure. Japanese Patent Laid-Open No. 2001-263420 “Anti-Vibration Legs and Anti-Vibration Unit Legs” Outline: An anti-vibration leg 8 is made of a metal having an elastic base and a threaded screw portion of a support at least on the upper side. It is composed of a rod-like leg, and a recess is formed on the elastic pedestal so that the lower end of the rod-like leg can be rotatably inserted from above, while the lower end of the leg is fitted on the upper surface of the elastic pedestal. Anti-vibration legs in which a flange body to be seated is connected, and a locking portion for a tool for rotating the rod-shaped leg body is formed on the flange body or the rod-shaped leg portion at the top of the flange body and the upper end of the rod-shaped leg body. Body and anti-vibration unit legs. JP 2001-81891 A "Sound-insulating floor structure on floor slab" Outline: Horizontal frame part that divides each floor and protrudes a reverse beam integrally, vertical frame part, and on the reverse beam, In a building where a floor frame is constructed, a floor body is laid on the floor frame, an above-floor space is formed on the floor body, and an under-floor space is formed below the floor body, A sound insulating floor structure in which a metal fitting to be inserted is supported by a pair of standing guide pieces, and a gap is formed between the edge of the large pull and the vertical casing portion. JP 2000-110331 A "Construction Method for Flooring" Outline: In a flooring construction method in which a plurality of flooring materials are bonded and laid on a floor base, both sides of a synthetic resin foam having a thickness of 0.4 to 1.0 mm Adhesive tape is applied to the floor substrate at intervals of 100 to 350 mm, the adhesive is applied thicker than the double-sided adhesive tape on the floor substrate located at the joint between the floor material and the floor material, and the floor material is laid on the floor material. Construction method. Japanese Patent Application Laid-Open No. 8-4185 "Floor Structure of Building" Outline: A large pull is constructed between reverse beams protruding on a horizontal frame, and a flooring is supported on the large pull through a joist. The floor structure of the building has a gap between the end of the large pull and the end of the flooring and the inverted large beam, and the large pull is a Σ-shaped steel that can be elastically deformed to improve sound insulation.

  In the present invention, the floor slab and the underfloor structure are vibration-insulated and engaged, and the vibration and sound insulation performance and walking performance are improved by making the vibration and sound insulation structure easy to assemble with low height. For new buildings, the floor slabs can be made thinner to significantly reduce costs, and for renovated buildings, groundbreaking vibration control and sound insulation devices that can utilize the existing floor slabs and secure the necessary on-floor living space are provided. To do.

The features of the present invention are as follows (1) to (2).
(1) An apparatus for supporting an arbitrary position of the lower part of the large beam of the building floor structure, wherein the lower part of the large beam is placed and supported via an elastic buffer. Π-type with a seating surface and a pair of seating legs that are attached to the upper part of each side part, and an elastic buffer provided between the lower part of each seating leg and the floor slab A vibration control and sound insulation device characterized by having a pedestal.
(2) A vibration damping and sound insulating device characterized in that the pedestal is connected by a connecting arm.
In the present invention, the material of the elastic buffer may be a synthetic resin such as silicon resin or synthetic resin rubber, or a natural resin such as natural rubber, which has an elastic cushioning property and preferably has pressure resistance and vibration resistance.

  The vibration damping and sound insulation device of the present invention, as introduced with specific effects in the embodiments, can be used to adjust the height of the large pull beam of the underfloor structure with a lightweight and robust vibration and sound insulation structure that is easy to assemble. By supporting it, the vibration control performance, sound insulation performance and walking performance are improved, and in new buildings, floor slabs can be made thinner and the cost can be greatly reduced.In renovation buildings, existing floor slabs can be utilized. It is an excellent thing that exhibits an epoch-making effect that can secure an indispensable space on the floor.

The schematic bird's-eye view which shows the Example which applied the vibration suppression and sound-insulation apparatus of this invention. FIG. 2 is a cross-sectional side view along the draw beam 210 of FIG. 1. Side surface expansion explanatory drawing in the circle A of FIG. Cross-sectional explanatory drawing from arrow BB of FIG. Cross-sectional explanatory drawing from arrow CC of FIG. It is explanatory drawing which shows the example of various cross-sectional structures of a large pull beam.

Modes for carrying out the invention will be described in detail together with the following embodiments.

An embodiment of the vibration damping and sound insulation device of the present invention will be described in detail with reference to FIGS.
1 to 6, the floor structure of a building includes an under-floor structure 200 and a floor plate body 100 arranged on a floor slab 300, and an upper vibration insulation connection portion and a lower vibration insulation connection portion that vibrate and insulate between them. Become. The floor board body 100 includes a wooden particle board (floor panel such as various veneer unions and chip compression bodies) 101 and a wooden flooring and a flooring 102 (solid body, makeup union, etc.) such as a solid wood body and a makeup union disposed thereon. Consists of.

The underfloor structure 200 is formed by joining the pull beam 210 and the sub beam 220 with an appropriate attachment / detachment mechanism.
The large draw beam 201 is made of metal in which a plurality of parallel beams are made between the main beams X at both ends of the upper surface of the floor slab 300, and is composed of a hollow building material having a substantially rectangular cross section. The air circulation hole 211 is notched, and the side shoulder is provided with a notch 212 for joining with the sub beam 220. As shown in FIGS. 5 (1) to (5), the cross-sectional shape of the large pull beam 201 is a channel type 210A, a C type (U-shaped) 210B, an H type 210C, and an intermediate portion, as shown in FIGS. The deformed rectangle 210D, the Σ type 210E, or the like may be used.

  The sub beam 220 may not need to be arranged depending on the arrangement interval of the large pull beam, the strength of the floor board itself, the load distribution on the upper surface of the floor board, or the like. In this example, it is a metal building material that is arranged in parallel between the upper portions of the side surfaces of the large pull beam 210, and has a U-shaped cross section of an open bottom surface, and hooks 221 for downward bonding on the left and right sides on both sides. It is formed integrally. The cross-sectional shape of the sub beam 220 may be a channel type, a Σ type, an H type, a deformed rectangle with a depressed middle part, a C type, a Y type, or the like, in addition to the above-mentioned U shape.

In this example, the large pull beam 210 and the sub beam 220 are joined to each other by inserting the hook 221 of the sub beam 220 into the key-shaped notch 212 of the large pull beam 210 from above and detachably fitting it. Other appropriate joining means such as a stopper, bolt and nut stopper, etc. are adopted.
The underfloor structure 200 of the present example is configured such that the large beam 210 and the sub beam 220 are detachably disposed within the height of the large beam 210, so that the height of the underfloor structure 200 is the height of the large beam 210. Therefore, it is possible to obtain a low-weight and robust structure. For this reason, it is possible to reduce the weight of the floor slab 200 in the new building, and to significantly reduce the cost of the floor slab 300, and in the renovation building, the floor slab 200 can be maintained while maintaining the current state.

  The underfloor structure 200 has a structure in which the large beam 210 and the sub beam 220 are detachably disposed within the height of the large beam 210, so that the height of the underfloor structure 200 is within the height of the large beam 210. Can be combined into a low-weight and robust structure. For this reason, in the new construction, the floor slab 300 can be reduced in weight, and the cost of the floor slab 300 can be greatly reduced, and in the renovation construction, the floor slab 300 can be constructed while maintaining the current status for environmental measures, etc. It exhibits an outstanding effect.

Next, the upper vibration insulation connecting portion between the large pull beam 210 and the floor board body 100 is composed of a synthetic resin rubber 410 having a pressure resistance and vibration resistance which is an elastic buffer. In FIG. 1, the synthetic resin rubber 410 is partially omitted from the end side of the large draw beam 210 so that the upper surface of the lower draw beam 210 can be seen. The synthetic resin rubber 410 is formed into an upper surface flat 411 where the lower surface of the floor plate body 100 is bonded and bonded and supported, and the flat surface portion 412 of the lower surface is bonded and bonded to the upper surface of the pulling beam 210 and mounted and supported in a non-interfering manner. Improves vibration control and walking performance. Further, since the upper surface of the large pull beam 210 is a flat chamfer, the workability of the floor board 100 made of particles, flooring, etc. is improved.

The lower vibration isolation connecting portion between the lower portion of the large pull beam 210 and the upper surface of the floor slab 300 includes a vibration damping / sound isolating device 500 and a beam intermediate vibration damping / sound insulating device 600.
The vibration damping / sound insulation device 500 has beam mounting seat surfaces 502 that are disposed on both sides in the longitudinal direction of the large pulling beam 210 and mount and support the lower portion of the large pulling beam 210 via an elastic buffer 501. Each of the both sides of the beam mounting seat surface 502 has a pair of seat legs 504 whose upper parts are screwed and attached with nuts 503, and the lower parts of the respective seat legs 504 are screwed and attached with nuts 505. A π-type pedestal 507 having an elastic buffer 506 bonded thereto. The beam mounting seat surface 502 adjusts the height position of the extended beam 210 by adjusting the tightening positions of the nuts 503 and 505 as appropriate, and performs leveling between the beams, and at the same time, eliminates unevenness with the upper surface of the floor slab 300. .
This vibration damping / sound insulating device 500 sequentially applies vibrations such as left and right and up and down from the large beam 210 to the elastic buffer body 501, the beam mounting seat surface 502, the pair of seat legs 504, the elastic buffer body 506, and the π-type base 507. Through this, the dispersion is gradually absorbed and buffered to prevent propagation to the floor slab 300, and the entire load and vibration of the underfloor structure 200 and the floor plate body 100 are equally distributed and absorbed to absorb and buffer the beam through the floor slab 300. The load applied to X is greatly reduced.
Since the beam placement seating surface 502 of the vibration damping / sound insulation device 500 is an inverted π-type placement hardware, it is excellent to place and support the lower portion of the large pull beam 210 via the elastic buffer 501 in the concave portion at the center. Exhibits an elastic cushion function. The pedestal 505 is a π-type receiving seat and has an excellent elastic cushion function because it is screwed and connected to the lower portion of the seat leg 503 in the recess at the center.
In this example, the pedestal 507 of the vibration damping and sound insulating device is connected by a connecting arm 510 to form a so-called four-link support structure, so that the gap between the floor slab and the large pull beam is slightly increased or on the floor plate body. In this case, buckling and end-to-end deformation, etc., are reliably prevented and a vibration control function, a sound insulation function and a walking performance are maintained normally.

The beam intermediate vibration damping / sound insulation device 600 is arranged between the both sides of the large pull beam 210 at a predetermined interval, and has a bolt-shaped leg portion 602 that is attached to the lower surface of the large pull beam by screwing and joining the upper portion with a nut 601. And a base 606 having a π-shaped cross section, which is attached to the lower portion of the leg portion 602 by screwing and joining with a nut 603 and is interposed between the floor slab 300 and an elastic buffer 605 through a side hole 604. .
This beam intermediate vibration damping / sound insulation device 600 adjusts the support height position of the large pull beam 210 by adjusting the tightening position of the nut 601 and the nut 603 as appropriate, and performs leveling between the beams, and at the same time, does not contact the upper surface of the floor slab 300. There is no land, and the load on the vibration control and sound insulation device 500 is reduced. Further, the middle portion of the large pull beam 210 is placed and supported to absorb the left and right vertical vibrations, thereby preventing the propagation of noise and vibration to the floor slab and preventing the large pull beam 210 from bending.
In place of the beam intermediate vibration damping / sound insulation device 600, the vibration damping / sound insulation device 500 may be arranged.

The intermediate beam damping / sound isolating device 600 prevents the large pull beam 210 from being bent and absorbs minute up / down / left / right swings transmitted from the floor plate body to the large pull beam through the elastic buffer to improve walking performance. At the same time, the transmission of vibration and noise to the floor slab is blocked. Further, a wide gap is formed between the floor slab 300 and the large drawing beam 210 to allow air to flow, and the space between the large drawing beam 210 and the air circulation hole 211 of the large drawing beam 210 are opened to communicate with each other. Reduce noise and reverberation to prevent resonance and amplification.
The air circulation hole 211 of the large pull beam 210 can be used as equipment piping, an air port for air conditioning, or the like.

  Thus, the present invention is a so-called non-interference type double floor structure in which the underfloor structure and the floor board are arranged on the floor slab in a non-interference type, and the vibration control performance, sound insulation performance and walking performance are remarkably improved. Improve.

Due to the excellent effects introduced above, the present invention greatly contributes to the building construction industry, as will be introduced next.
○ Realizes a low floor from about 138mm despite being a double floor, ○ Reduces sound transmission by eliminating bundles that transmit vibration, and ○ Sound insulation performance without relying on floor slab thickness The increase in slab thickness, which is unnecessary, can be prevented and the entire building can be reduced in weight. ○ The construction cost of the building can be reduced if the floor slab is reduced to 135 mm and the building columns, beams, foundations, etc. are reduced. The cost of the housing can be reduced by 8-30% compared to homogeneous single slabs (thickness 150mm, 180mm, 200mm), poid slabs and ampoid PC slabs. ○ Equipment construction costs are installation of equipment wiring and piping into the housing. Eliminate joint work between different industries, ○ Equipment wiring and piping can be exposed, easy maintenance, reducing labor, time and cost, greatly reducing the cost burden, ○ Housing and housing Separate the floor Since the idea can easily cope with changes in the maintenance and living environment, it leads to the idea of long-term excellent housing (construction life = housing life) in common with the idea of SI housing itself promoted by the Ministry of Land, Infrastructure, Transport and Tourism. In this way, the realization of a highly durable house can be used safely for a long time, greatly contributing to the reduction of life cycle costs.

100: Floor plate body 101: Particle board 102: Flooring 200: Underfloor structure 210, 210A, 210B, 210C, 210D, 210E: Large draw beam 220: Sub beam 211: Hole for air flow 212: Notch portion 221 for joining Hook 300: floor slab 410: elastic buffer 500: vibration control / sound insulation device 510: connecting arm 600: intermediate beam vibration control / sound insulation device

Claims (2)

  An apparatus for supporting an arbitrary position of a lower part of a large pull beam of a floor structure of a building, wherein the lower π beam is mounted and supported via an elastic buffer. A pair of seating legs that are attached to the upper part of each side, and a π-type pedestal that is attached to the lower part of each seating leg and is provided with an elastic buffer between the floor slab. Damping / sound insulation device characterized by   The vibration control and sound insulation device according to claim 1, wherein the base is connected by a connecting arm.