JP2009024373A - Supporting structure of prefabricated bath using floating floor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a supporting structure of a prefabricated bath capable of ensuring not only stability and sound insulation of the supporting structure but also a space for piping while preventing increase of height of story and achieving excellent construction property and economical use. <P>SOLUTION: The floating floor 11 is constituted by spreading a cushioning material 12 such as glass wool on a skeleton slab 1 and laying a light-weight concrete panel 13 on it through an impervious sheet 16. The light-weight concrete panel 13 supports the load of the prefabricated bath 2 directly in a lower part position of a bathtub of the prefabricated bath 2, and a height adjustable supporting leg 17 is provided on the lightweight concrete panel 13 to support the load of the prefabricated bath 2 in parts other than the lower part position. A cut-in part 14 of the floating floor is formed in the vicinity of a pipe arranged in the lower part of the prefabricated bath 2 or in the vicinity of a projection protruding from the lower part of the prefabricated bath to support the load the prefabricated bath 2 by vibrationproof supporting legs 15 provided on the skeleton slab 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a support structure for a unit bath using a floating floor, and is mainly applied to buildings such as SI (Skeleton Infill) buildings and high-rise buildings where suppression of floor height is required. It is not limited and can be applied to general buildings.

  In the case of an SI building, it is possible to arrange a floor plan freely, but sound insulation is important, for example, when an upper-floor bathroom comes over a lower-floor room. In addition, floor heights are required to be reduced, and there are problems with the layout space for water supply and drainage facilities. Further, even in the case of a general building, there is a problem that it is difficult to change the position of the unit bus for the same reason during the renovation.

  One possible solution for sound insulation is to use a floating floor structure. As a conventional floating floor structure, a floor panel comprising a double floor is formed on a floor slab of a building frame by laying a cushioning material molded in the shape of a plate such as glass wool, polystyrene or polypropylene resin foam. (For example, refer to Patent Document 1), and the floor slab of the building frame in which support legs having vibration-proofing performance are distributed and a floor panel constituting a double floor is provided thereon (for example, Patent Document 3). In addition, various structures have been devised to improve sound insulation and vibration isolation.

JP 2002-294997 A JP 2004-183319 A JP 2006-321964 A JP 2006-328715 A

  The method of laying cushioning material and laying floor panels on it has the advantage that the thickness of the floating floor itself is relatively thin, the stress is evenly applied to the loading load, and is generally stable. .

  However, if the thickness of the cushioning material is thin, sufficient sound insulation and vibration-proofing effects cannot be obtained. Conversely, if the thickness of the cushioning material is thick, partial dents may occur due to the weight of the overload or deterioration of the cushioning material. Otherwise, it may cause unevenness or the support structure itself may become unstable.

  In addition, in SI buildings and the like, when water supply and drainage pipes and various wirings are under the floor of a dwelling unit, space for the pipes and the like is required. Therefore, even if the floating floor thickness is reduced, the floor height does not decrease.

  On the other hand, in the type in which the flooring is supported by the support legs having vibration isolation performance, the vibration isolation performance is relatively easy to obtain according to the performance of the vibration isolation rubber incorporated in the support legs, and the height of the support legs is adjusted. There is an advantage that space such as piping can be secured.

  However, this type of load concentrates on the position of the support legs, so that the design including the number and arrangement of the support legs becomes difficult, which is disadvantageous in terms of workability and cost. In addition, while it is easy to obtain anti-vibration performance, it is difficult to obtain a sound insulation effect against noise on the upper floor.

  The present invention is intended to solve the problems in the prior art as described above, and after securing the stability and sound insulation of the support structure, it is possible to secure a space such as piping while suppressing an increase in floor height, The object is to provide a support structure for unit baths that is excellent in workability and economy.

  The invention according to claim 1 of the present application is a unit bath support structure using a floating floor formed on a frame slab, wherein the floating floor is laid on a cushioning material of a required thickness and the cushioning material to increase the floor strength. It is composed of a rigid panel body that exhibits, supports the load of the unit bath with the floating floor directly or via a support, and near the piping disposed under the unit bath or near the protrusion from the lower unit bath The floating floor missing portion that does not form the floating floor is formed, and the floating floor missing portion is supported on the load of the unit bath by a plurality of support legs provided with a vibration isolation mechanism installed on the housing slab. To do.

  As the cushioning material, it is desirable to have a sound insulating property and a heat insulating property in addition to the function as a cushioning material in terms of vibration proofing, such as glass wool, but the intended function is obtained and it is difficult to deteriorate. If it does not specifically limit. For example, a polystyrene-based or polypropylene-based resin foam described in the section of the prior art, or a resin foam described in Patent Document 1 and an elastic body such as rubber can be used.

  The hard panel body does not easily deform following the deformation of the buffer material, but means a panel body having strength and rigidity capable of maintaining a flat form as a floor. Specific examples include metal panels such as concrete panels and steel plates, and hard panels such as FRE.

  The load of the unit bath is supported by the floating floor directly or via a support. It is most stable when supported by the upper surface of the floating floor, but the lower surface of the unit bath is usually not flat and has slopes and irregularities. If necessary, support is performed by adjusting the height by interposing a support at a required location. In addition, in relation to the necessary space for equipment piping such as water supply and distribution pipes arranged in the lower part of the unit bath, there is no portion that is directly supported on the upper surface of the floating floor, and there is a case where all support is provided through the support. . Even in that case, the anti-vibration function and sound insulation performance of the floating floor portion are exhibited.

  The floating floor missing portion is not formed later, but is formed as an arrangement design of the floating floor on the floor slab. In this part, it is possible to suppress the height of the floating floor with respect to the floor height by using a support mechanism with a plurality of support legs provided with the vibration isolation mechanism, and the floating floor and the support legs with respect to vibration isolation performance and sound insulation performance. By combining different vibration control mechanisms, a synergistic effect in a wide frequency range can be expected.

  According to a second aspect of the present invention, in the unit bus support structure according to the first aspect, a water shielding sheet is interposed between the cushioning material and the rigid panel body.

  Depending on the type of cushioning material, if the cushioning material gets wet with water and the vibration and sound insulation properties are reduced, deteriorated, or deformed, a water shielding sheet may be interposed. It is desirable to prevent the buffer material from absorbing water.

  According to a third aspect of the present invention, in the unit bus support structure according to the first or second aspect, the case where the hard panel body is a concrete panel is limited.

  In the case of a concrete panel, one having a thickness of about 5 to 10 cm is used, but if a lightweight concrete panel using a lightweight aggregate or an ultralight aggregate is used, the weight can be reduced without substantially reducing the strength. .

  According to a fourth aspect of the present invention, in the unit bus support structure according to the first or second aspect, the case where the hard panel body is a metal panel is limited.

  The metal panel is generally a steel plate, but may be an aluminum alloy or other panel. In the case of a metal panel, the thickness as a floating floor can be greatly reduced compared to a concrete panel, and there is no problem such as chipping at the end.

  However, since the cost is high and the concrete panel is superior in terms of sound insulation, the concrete panel is desirable when it does not contribute to floor height suppression due to the relationship with equipment piping.

  The support structure of the unit bath according to claim 1, wherein the floating slab is moved in the in-plane direction of the floating floor to the outer peripheral portion position of the floating floor and the outer peripheral portion position of the floating floor missing portion. A side cushioning material for restraining is arranged.

  In the present invention, a hard panel body is used especially for the upper surface of the floating floor. Therefore, when it vibrates in the horizontal direction due to an earthquake or the like, it separates from the lower cushioning material, or the end of the hard panel body is a housing. However, such a problem can be solved by arranging the side cushioning material and restraining the horizontal movement to some extent.

  As the side cushioning material, for example, a plate-shaped anti-vibration rubber or the like can be used.An angle-shaped metal fitting or the like is fixed to the upper surface of the floor slab of the housing, and an anti-vibration rubber or the like is attached to the rising surface. Horizontal movement of the rigid panel body can be suppressed. Moreover, the energy absorption effect by the side buffer material in that case can also be expected.

  In the present invention, the floating floor is composed of a cushioning material and a rigid panel body that is laid on it and exhibits floor strength, supports the load of the unit bath with the floating floor, and near the protrusions from the vicinity of the pipe or the lower part of the unit bath Has a floating floor missing part, and the floating floor missing part is supported by a plurality of support legs equipped with a vibration isolation mechanism, while ensuring stability and sound insulation of the support structure, while suppressing an increase in floor height Space such as piping can be secured.

  In addition, the combined use of a floating floor using a rigid panel body and a support mechanism with a support leg equipped with an anti-vibration mechanism installed in the floating floor missing part can suppress the height of the floating floor with respect to the floor height. With regard to sound insulation performance, a synergistic effect in a wide frequency range can be expected by combining different vibration control mechanisms such as floating floors and support legs.

  FIG. 1 shows one embodiment of the present invention, in which (a) is a horizontal sectional view, (b) is an AA sectional view, and (c) is a BB sectional view.

  In this embodiment, the floating floor 11 is constructed by laying a cushioning material 12 such as glass wool on a frame slab 1 and laying a lightweight concrete panel 13 via a water shielding sheet 16 thereon.

  As an example of dimensions, two glass wool panels formed into a plate shape with a thickness of 12.5 mm as the buffer material 12 are stacked to form a heat insulating buffer layer with a thickness of 25 mm, and the water shielding sheet 16 has a thickness of 0.15 mm. A lightweight concrete panel 13 having a thickness of 75 mm (but 50 mm for the lower portion of the bathtub of the unit bath 2) is laid thereon. It should be noted that the materials and dimensions mentioned here are merely representative examples and are not limited thereto.

  In the present embodiment, the lightweight concrete panel 13 directly supports the load of the unit bath 2 at the lower part of the bathtub of the unit bath 2, and the rest of the unit bath 2 is mainly on the lightweight concrete panel 13. A height adjustable support leg 17 is installed in the vicinity of the lower position of the outer peripheral portion and the floating floor missing portion 14 described later to support the load of the unit bus 2.

  A floating floor missing portion 14 is formed in the vicinity of the pipe arranged near the lower part of the unit bath 2 or the projecting object from the lower part of the unit bus 2, and the load of the unit bus 2 is applied by the anti-vibration support legs 15 installed on the housing slab 2. I support it.

  For example, the anti-vibration support leg 15 may be a combination of a product name “ball damper” manufactured by Yakumo Co., Ltd. and a bolt for height adjustment, but is not limited thereto. .

  Moreover, in this embodiment, as shown in FIG. 2, the movement of the floating floor 11 in the in-plane direction is suppressed between the outer peripheral portion position of the floating floor 11 and the outer peripheral portion position of the floating floor missing portion 14 with the frame slab 2. For this purpose, a side cushioning material 18 is arranged so that horizontal movement can be restrained against horizontal vibration due to an earthquake or the like.

  FIG. 3 shows a case where the angle piece 18a is fixed to the upper surface of the housing slab 1 as an example of the side cushioning material 18 and the vibration isolating rubber 18b is attached to the rising surface.

  FIG. 4 shows another embodiment of the present invention, in which (a) is a horizontal sectional view, (b) is an AA sectional view, and (c) is a BB sectional view.

  In the present embodiment, the floating floor 11 is configured such that a buffer material 12 such as glass wool is laid on the frame slab 1, and a steel plate 23 is laid thereon via a water shielding sheet 16.

  As an example of dimensions, two glass wool panels formed into a plate shape with a thickness of 12.5 mm as the buffer material 12 are stacked to form a heat insulating buffer layer with a thickness of 25 mm, and the water shielding sheet 16 has a thickness of 0.15 mm. A polyethylene film having a thickness of 25 mm is laid thereon. It should be noted that the materials and dimensions mentioned here are merely representative examples and are not limited thereto.

  Moreover, in this embodiment, the support leg 17 which can be height-adjusted on the steel plate 23 including the bathtub lower part position of the unit bath 2 mainly in the lower part of the outer peripheral part position of the unit bath 2 and in the vicinity of the floating floor missing part 14 described later. Is installed to support the load of the unit bath 2.

  A floating floor missing portion 14 is formed in the vicinity of the pipe arranged near the lower part of the unit bath 2 or the projecting object from the lower part of the unit bus 2, and the load of the unit bus 2 is applied by the anti-vibration support legs 15 installed on the housing slab 2. I support it. The anti-vibration support legs 15 are the same as in the embodiment of FIG.

  FIG. 5 shows an example of the side cushioning material 18 in the embodiment of FIG. 4, and the basic configuration is the same as that of FIG. 3, but instead of the lightweight concrete panel 13 in the floating floor 11 portion, a steel plate 23 is used, the rise of the angle piece 18a is lower than that of FIG.

1 shows an embodiment of the present invention (when a lightweight concrete panel is used as a hard panel body), (a) is a plan view of a floating floor, (b) is a sectional view taken along the line AA, (c) is It is BB sectional drawing. It is a plane arrangement | positioning figure which shows the example of arrangement | positioning of the side part buffer material in embodiment of FIG. It is a vertical sectional view of the side cushioning material portion in the embodiment of FIG. The other embodiment of the present invention (when a steel plate is used as the hard panel body) is shown, (a) is a floating floor plan view, (b) is an AA cross-sectional view, (c) is B It is -B sectional drawing. It is a vertical sectional view of the side cushioning material portion in the embodiment of FIG.

Explanation of symbols

1 ... body slab, 2 ... unit bath,
DESCRIPTION OF SYMBOLS 11 ... Floating floor, 12 ... Buffer material, 13 ... Lightweight concrete panel, 14 ... Floating floor missing part, 15 ... Anti-vibration support leg, 16 ... Water-proof sheet, 17 ... Support leg, 18 ... Side buffer material, 18a ... Angle piece 18b ... Anti-vibration rubber,
23 ... Steel plate

Claims (5)

  A unit bath support structure using a floating floor formed on a frame slab, wherein the floating floor is composed of a cushioning material having a required thickness and a rigid panel body laid on the cushioning material to exhibit floor strength, The load of the unit bath is supported by the floating floor directly or via a support, and the floating floor missing that does not form the floating floor in the vicinity of the pipe disposed in the lower portion of the unit bath or in the vicinity of the protrusion from the lower portion of the unit bath The unit bus support structure is characterized in that the load of the unit bus is supported by a plurality of support legs including a vibration isolation mechanism installed on the housing slab.   2. The support structure for a unit bath according to claim 1, wherein a water shielding sheet is interposed between the cushioning material and the hard panel body.   The unit bus support structure according to claim 1 or 2, wherein the hard panel body is a concrete panel.   The unit bus support structure according to claim 1, wherein the hard panel body is a metal panel. The side cushioning material for suppressing movement of the floating floor in an in-plane direction is arranged at the outer peripheral portion position of the floating floor and the outer peripheral portion position of the floating floor missing portion of the frame slab. The unit bus support structure according to claim 1, 2, 3 or 4.

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