JP2000345639A - Building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a ceiling panel from being vibrated by a weight shock without providing a damper by supporting the ceiling panel with ceiling beams suspended between ceiling panel frames, and fitting a reinforcing steel sheet to the ceiling beams. SOLUTION: A first-floor ceiling section 23 has a structure that a ceiling panel 63 is supported by a plurality of ceiling beams 62 suspended at uniform intervals between ceiling panel frames 61 at a position below a second-floor floor section 21. A reinforcing steel sheet (heavy steel sheet) 64 is stuck to the ceiling beams 62. The reinforcing steel sheet 64 can be installed at a proper position, and it is effective to concentratedly install the reinforcing steel sheet 64 for the ceiling beams 62 located at the position corresponding to the loop of large-amplitude vibration against the vibration behavior affecting the sound on the ceiling panel 63 (vibration at the frequency of about 30-125 Hz). The reinforcing steel sheet 64 can be fixed to the ceiling beams 62 by screws, nails, an adhesive or the like.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a building such as a unit building for a detached house, and more particularly to a multi-storey building having two or more floors.

[0002]

2. Description of the Related Art As a detached house, in a multi-storey building such as a two-story building constructed by stacking a building unit for a lower floor and a building unit for a higher floor, a floor panel on the upper floor and a ceiling panel on the lower floor are used. It has already been proposed to provide a sound insulation board such as a gypsum board in the space between the floors to enhance the sound insulation of the upper and lower floors.
No. 0 publication.

[0003]

The installation of the sound insulation board is as follows.
Although it is effective in increasing the sound insulation of the upper and lower floors, it is not sufficient as a countermeasure against the weight impact sound, and it is effective to vibrate the ceiling panel on the lower floor due to the weight impact on the floor and transmit the heavy impact sound to the lower floor. Cannot be suppressed.

In the installation of a sound insulation board, solid vibration generated on a floor panel on the floor is propagated through beams, wall panels and the like to a ceiling panel below the floor, whereby the ceiling panel vibrates, and the ceiling panel vibration noise is generated. Cannot be avoided. In order to control the ceiling panel, it is conceivable to attach a damper to the ceiling panel. However, the ceiling panel may be bent due to the weight of the damper, or the air conditioner indoor unit may be embedded in the ceiling. May cause a bad fit.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and prevents a ceiling panel from vibrating due to a weight impact without providing a damper.
The solid vibration generated on the floor panel on the floor is prevented from propagating to the ceiling panel through the wall panel etc. on the floor below to prevent the ceiling panel from vibrating due to the solid vibration of the floor panel. It is an object of the present invention to provide a building that can suppress walking vibration of floor panels and is excellent in livability with respect to vibration and vibration noise.

[0006]

In order to achieve the above object, a building according to the first aspect of the present invention is a building in which a ceiling panel is supported by a ceiling beam spanned between ceiling panel frames. A reinforcing steel plate is attached to the ceiling beam. According to this configuration, the bending rigidity of the ceiling beam is improved by the reinforcing steel plate, and the ceiling beam is hardly bent by the weight impact, and the ceiling panel is hardly bent.

According to a second aspect of the present invention, there is provided a building in which a floor panel is supported by a floor joist spanned between floor beams, and a ceiling panel is supported by a ceiling beam spanned between ceiling panel frames. , A dynamic vibration absorbing plate is attached to at least one of the floor joist and the ceiling beam. According to this configuration, the floor vibration and the ceiling vibration are absorbed and attenuated by the dynamic vibration absorbing plate.

According to a third aspect of the present invention, in a building in which a ceiling panel frame holding a ceiling panel is connected to a beam to support the ceiling panel from the beam, the ceiling panel frame and the beam are connected to each other. A vibration isolating rubber is provided between the ceiling panel frame and the beam in a vibration insulating relationship with the vibration isolating rubber. According to this configuration, the solid vibration generated on the floor panel on the floor is prevented from propagating to the ceiling panel through beams, wall panels, etc., on the floor below, and is prevented by the vibration-proof rubber. Vibration is prevented.

According to a fourth aspect of the present invention, in a building having a floor panel supported by a floor joist, a wall panel built so as to surround the floor panel and an outer edge of the floor panel are L-shaped. They are rigidly joined by metal fittings. According to this configuration, the joint strength between the floor panel and the wall panel is increased, and the floor rigidity is improved.

[0010]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 shows an outline of a building according to the present invention. In FIG. 1, 10 is a building unit for downstairs, 20 is a building unit for floors, 30
Indicates roof units, and a two-story building is constructed by stacking them. The downstairs building unit 10 includes a first floor 11 and a 1
Upstairs building unit 20 having a floor wall panel 12
Has a second-floor floor 21, a second-floor wall panel 22 built around it, and a first-floor ceiling 23.

[0011] As shown in FIG.
Has a structure in which a floor panel 52 is supported by a plurality of floor joists 51 laid at equal intervals between floor beams (not shown). The floor panel 52 is on the floor joist 51,
A flooring 53 is provided on the floor panel 52.
The floor joist 51a at the end is rigidly connected to the wall panel 22 by an L-shaped fitting 55 fixed by screws and nails 54.

The wall panel 22 is built so as to surround the floor panel 52, and the wall panel 22 and the upper side of the outer edge of the floor panel 52 are rigidly connected by L-shaped fittings (connecting fittings) 57 fixed by screws and nails 56. Are joined. As a result, the floor panel 52 is fixed with its ends sandwiched from above and below. L-shaped bracket 57 is made of baseboard 58 and flooring 5
3 blindfolded.

A sound insulation sheet 59 is attached to a lower portion of the floor joist 51. The first-floor ceiling portion 23 is provided below the second-floor floor portion 21 with a plurality of ceiling beams (field edges) 62 which are bridged at equal intervals between ceiling panel frames 61 (see FIG. 3). Is supported.

A reinforcing steel plate (heavy steel plate) 6
4 is attached in a sticking manner. The installation position of the reinforcing steel plate 64 can be appropriately determined, and the vibration behavior (frequency is 30 to 125 Hz) that affects the sound in the ceiling panel 63.
3B), the ceiling beam 62 at a position corresponding to the abdomen of the vibration having a large amplitude as shown in FIG. It is effective that the reinforcing steel plate 64 is intensively installed at the center. The reinforcing steel plate 64 can be fixed to the ceiling beam 62 by screwing, nailing, bonding with an adhesive, or the like. The arrangement position of the reinforcing steel plate 64 with respect to the ceiling beam 62 is not limited to the upper surface of the ceiling beam 62 but may be on the side surface of the ceiling beam 62 as shown in FIG.

As described above, since the reinforcing steel plate 64 is attached to the small beam 62 of the ceiling, the bending rigidity of the small beam 62 of the ceiling is improved, and the small beam 62 of the ceiling hardly bends due to a weight impact. As a result, the ceiling panel 63 is less likely to bend, and the vibration and vibration noise of the ceiling panel 63 are suppressed. Further, the position of the reinforcing steel plate 64 is
By selecting an optimal position with respect to the vibration behavior affecting the sound in the above, it is possible to efficiently take measures against the weight impact sound. Further, by adjusting the weight of the reinforcing steel plate 64, the reinforcing steel plate 64 can also function as a vibration control weight.

The reinforcing steel plate 64 is attached to the top and side surfaces of the ceiling beam 62 in an adhesive manner.
Even if there is an air conditioner indoor unit embedded in the ceiling between them, the reinforcing steel plate 64 can be attached without interfering with this. The upper edge of the outer edge of the floor panel 52 is the L-shaped bracket 5
7, the joint strength between the floor panel 52 and the wall panel 22 is increased, and the floor rigidity is improved. Therefore, when walking on the floor, the L-shaped fitting 57
5A, the floor panel 5 largely falls down and vibrates as shown in FIG.
When the connection is made by 7, the floor panel 5 is less likely to fall, and the occurrence of floor vibration is suppressed. As a result, a heavy impact sound is less likely to be generated, the walking feeling is improved, and even if the wall is vibrated, the effect on the floor is reduced, and the feeling of remaining shaking is reduced.

In the embodiment shown in FIG. 2, the connection between the wall panel 22 and the floor panel 52 by the L-shaped bracket 57 has a wall-winning structure. Similar effects can be obtained. 6 and 7 show a vibration damping structure of a ceiling panel applied to a building according to the present invention. A dynamic vibration absorbing plate 65 is attached so as to bridge between adjacent ceiling beams 62. The dynamic vibration absorbing plate 65 is 2
It has a laminated structure of a single restraining plate 66 and a damping plate 67 sandwiched between the two restraining plates 66, and has a damping ability.
Attachment of the dynamic vibration absorbing plate 65 to the ceiling beam 62 may be performed by screwing, nailing, or bonding.

In this structure, the dynamic vibration absorbing plate 65 vibrates in response to the vibration of the ceiling panel 63, the vibration energy of the ceiling panel 63 is absorbed by the dynamic vibration absorbing plate 65, and the attenuation of the vibration of the ceiling panel 63 is accelerated. In the case of the non-attenuating dynamic vibration absorbing plate, the vibration level of the resonance frequency is greatly reduced, but the vibration level of the nearby frequency is increased, and as a result, the sound performance may be deteriorated. Because it has damping properties
There is no adverse effect on vibration at the encircling frequency.

In the same manner as the above-described location of the reinforcing steel plate 64, the dynamic vibration absorbing plate 65 is attached to the ceiling beam 62 at a position corresponding to the antinode of the vibration having a large amplitude in the vibration behavior affecting the sound on the ceiling panel 63. It is effective to be installed intensively. As shown in FIG. 8, the dynamic vibration absorbing plate 65 divides the dynamic vibration absorbing plate 65 into four dynamic vibration absorbing plate dividing members 65a to 65d.
8, so that they can be interconnected.

In this case, either the vertical ceiling vibration as shown in FIG. 9A or the torsional vibration as shown in FIG. 9B is effectively attenuated. Can be. The dynamic vibration absorbing plate 65 is attached to the ceiling beam 6.
The number is not limited to 2, and may be applied to the floor joists 51 to absorb and attenuate floor vibrations.

FIG. 10 shows a connection structure of the second-floor floor 21 and the first-floor ceiling 23 to the iron beams applied to the building according to the present invention. In FIG. 10, reference numeral 70 denotes an iron beam (large floor beam) made of channel steel. The second floor 21 is the floor girder 59
Are rigidly connected to the iron beams 70 by fastening bolts 73 via floor panel receiving members 71 and gap members 72. In addition,
Sound insulation sheet 5 between floor panel 52 and flooring 53
2a is provided.

A ceiling panel support bracket 75 is fixed to the ceiling panel frame 61 by screws and nails 74, and the ceiling panel support bracket 75 is suspended by a suspension bolt 77 via an anti-vibration rubber 76.
From the lower piece 70a of the iron beam 70,
Hanging supported. As shown in FIG. 11, the vibration isolating rubber 76 includes a rubber portion 76 a that performs vibration isolation between the iron beam 70 and the suspension bolt 77, and a vibration between the iron beam 70 and the ceiling panel support bracket 75. And a rubber portion 76b for insulation.

With the above configuration, the iron beams 7 of the floor panel 52
0 and the ceiling panel 63 are separated from each other by solid sound, and the vibration isolation rubber 76 prevents the solid vibration generated on the floor panel 52 on the floor from propagating through the iron beams 70 and the like to the ceiling panel 63 on the floor below. The ceiling panel 63 is prevented from vibrating due to the solid vibration of the panel 52, and high sound insulation is obtained.

In the example shown in FIG. 11, the anti-vibration rubber 76 includes a rubber portion 76a for performing vibration isolation between the iron beam 70 and the suspension bolt 77, and a rubber portion 76a and a ceiling panel support bracket 75. And the rubber portion 76b that performs vibration isolation between the two members are configured as individual members, but as shown in FIG.
An integrated structure in which the rubber portions 76a and 76b are connected by the bridge 76c can also be used. These embodiments are not limited to unit buildings as long as the buildings have floor panels.

[0025]

As can be understood from the above description, according to the building according to the first aspect of the present invention, in a building in which a ceiling panel is supported by a ceiling beam spanned between ceiling panel frames, Since the reinforcing steel plate is attached to the ceiling beam, the reinforcing steel plate increases the bending rigidity of the ceiling beam, making it difficult for the ceiling beam to bend against heavy impact, and for the ceiling panel to be hardly bent. In addition, the vibration of the ceiling panel 63 and the generation of vibration noise are suppressed.

According to the second aspect of the present invention, the floor panel is supported by the floor joists spanned between the floor beams, and the ceiling panel is supported by the ceiling beams spanned between the ceiling panel frames. In a building, a dynamic vibration absorbing plate is attached to at least one of the floor joist or the ceiling beam, so that the dynamic vibration absorbing plate allows floor vibration,
Absorption and attenuation of ceiling vibration are performed, vibration noise is reduced, and high sound insulation is obtained.

According to the third aspect of the present invention, in a building where the ceiling panel supporting the ceiling panel is supported by the beam, the ceiling panel frame holding the ceiling panel is connected to the beam. A vibration isolating rubber is provided between the beams, and the ceiling panel frame and the beams are connected in a vibration insulating relationship by the vibration isolating rubber. Propagation to the ceiling panel through beams, wall panels and the like downstairs is prevented by the vibration-proof rubber, and the ceiling panel is prevented from vibrating due to solid vibration of the floor panel, and high sound insulation is obtained.

According to a fourth aspect of the present invention, there is provided a building having a floor panel supported by a floor joist, wherein a wall panel built so as to surround the floor panel and an outer edge of the floor panel are L-shaped. Since the structure is rigidly joined by the metal fittings, the joint strength between the floor panel and the wall panel is increased, the floor rigidity is improved, and the weight impact noise is hardly generated, and the walking feeling is also improved.

[Brief description of the drawings]

FIG. 1 is an elevation view showing an outline of a building according to the present invention.

FIG. 2 is a sectional view showing the structure of the floor and ceiling of a building according to the present invention.

FIG. 3A is a plan view of a ceiling of a building according to the present invention, and FIG. 3B is a diagram illustrating a vibration behavior affecting sound of a ceiling panel.

FIG. 4 is a perspective view showing an arrangement position of a reinforcing steel plate in a building according to the present invention.

FIGS. 5A and 5B are explanatory diagrams showing floor vibrations when there is no connection metal fitting on the upper side of the floor panel and when there is a connection metal fitting.

FIG. 6 is a plan view of another embodiment of the ceiling of a building according to the present invention.

FIG. 7 is a perspective view showing an attached state of a dynamic vibration absorbing plate in a building according to the present invention.

FIG. 8 is a perspective view showing a state in which a dynamic vibration absorbing plate according to another embodiment is attached to a building according to the present invention.

FIGS. 9A and 9B are explanatory views showing vertical ceiling vibration and torsional vibration.

FIG. 10 is a sectional view showing a connection structure of the second-floor floor portion and the first-floor ceiling portion to the iron beam applied to the building according to the present invention.

FIG. 11 is a side view showing a main part of a ceiling connection part of a building according to the present invention.

FIG. 12 is a side view showing a main part of another embodiment of a ceiling connection portion of a building according to the present invention.

[Explanation of symbols]

 Reference Signs List 10 lower floor building unit 11 first floor floor part 12 first floor wall panel 20 upper floor building unit 21 second floor floor part 22 second floor wall panel 23 first floor ceiling part 23 30 roof unit 51 floor joist 52 floor panel 57 L-shaped bracket 59 Sound insulation sheet 61 Ceiling panel 62 Ceiling beam 63 Ceiling panel 64 Reinforced steel plate 65 Dynamic vibration absorbing plate 71 Floor panel receiving bracket 75 Ceiling panel supporting bracket 76 Anti-vibration rubber 77 Hanging bolt 77

Claims (4)

[Claims] 1. A building in which a ceiling panel is supported by a ceiling beam spanned between ceiling panel frames, wherein a reinforcing steel plate is attached to the ceiling beam. 2. A building in which a floor panel is supported by a floor joist spanned between floor beams and a ceiling panel is supported by a ceiling joist spanned between ceiling panel frames. A building having a dynamic vibration absorbing plate attached to at least one of the beams. 3. A building in which a ceiling panel frame holding a ceiling panel is connected to a beam to support the ceiling panel from the beam, wherein a vibration isolating rubber is provided between the ceiling panel frame and the beam. A building, wherein the ceiling panel frame and the beam are connected in a vibration-insulating relationship by the vibration-proof rubber. 4. A building having a floor panel supported by a floor joist, wherein a wall panel built to surround the floor panel and an outer edge of the floor panel are rigidly connected by an L-shaped bracket. The featured building.