JP2015209734A - Sound insulation panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound insulation panel that can improve durability and workability and that has sound insulating properties and sound absorbing properties.SOLUTION: A core material 30 compressed in a high density of 125-200 kg/mis bonded in the state of being sandwiched between two metal plates 20.

Description

  The present invention relates to a sound insulation panel having sound insulation properties and sound absorption properties.

  For example, a side wall of an expressway may be required to have sound insulation and sound absorption, and conventionally, a plurality of concrete panels are mainly constructed along the road to provide a side wall mainly having sound insulation (Patent Document 1). etc).

JP 2006-124975 A

  However, concrete panels are often damaged and cracked due to shrinkage / expansion due to heat or the adhering snow melting agent such as calcium chloride in cold districts. Moreover, since the weight is heavy, it cannot be said that the workability is good, and the burden on the installer is large.

  This invention is made | formed in view of the said situation, The main subject is to provide the sound insulation panel which has the sound insulation and sound absorption which can aim at the improvement of durability and workability.

The sound insulation panel of the present invention is characterized in that a core material compressed at a high density of 125 to 200 kg / m ³ is sandwiched between two metal plates.

  In this invention, the said core material consists of the material from which a fiber extends in one direction, and the extending direction of the fiber includes the form along the thickness direction.

  Moreover, the sound insulation panel of the present invention is characterized in that the overall thickness is 50 to 250 mm. Moreover, the thickness of the said metal plate is 0.2-2.0 mm, It is characterized by the above-mentioned.

  According to the present invention, it is possible to suppress the occurrence of damage such as cracks due to shrinkage / expansion due to heat, adhesion of a snow melting agent, and the like as in a conventional concrete panel, and high durability is exhibited. In addition, since the core material is compressed at a high density, the panel is thinned and relatively lightweight, so that the workability is improved and the burden on the installer is reduced. That is, there is an effect that a sound insulation panel having sound insulation properties and sound absorption properties that can improve durability and workability is provided.

BRIEF DESCRIPTION OF THE DRAWINGS (a): Front view of the sound insulation panel which concerns on one Embodiment of this invention, (b): BB sectional drawing of (a), (c): CC sectional drawing of (a). It is (a): a cross-sectional view which shows a part of sound insulation wall constructed | assembled with the sound insulation panel which concerns on one Embodiment, (b): It is a front view.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a sound insulation panel 10 according to an embodiment. The sound insulation panel 10 has a configuration in which a core member 30 is sandwiched between two metal plates 20.

As the metal plate 20, a color steel plate, a fluorine steel plate, a vinyl chloride steel plate, a stainless steel plate such as SUS, or the like is used. The core material 30 is formed by compression-molding inorganic fibers having incombustibility and heat insulation into a panel shape at a high density of 125 to 200 kg / m ³ . Examples of the material of the core material 30 include panel-like rock wool, which is generated by mixing lime or the like with glass-like iron furnace slag obtained by an iron-making process and melting at a high temperature, panel-like glass wool, and the like. Inorganic artificial fibers and the like. When the core material 30 is manufactured using a material in which fibers extend in one direction, it is preferable that the direction in which the fibers extend extend along the thickness direction of the sound insulation panel 10 because strength can be improved.

  In this case, the sound insulation panel 10 is constructed in a state where the longitudinal direction is set parallel to the horizontal direction, and a plurality of the sound insulation panels 10 are stacked up and down, for example, to construct a sound insulation wall of an expressway or a general road that requires noise reduction in the surrounding environment. . Thus, the dimensions of the sound insulation panel 10 used as the wall material are, for example, a width: 1500 to 6000 mm, a height: about 450 to 1200 mm, and an overall thickness of about 50 to 250 mm. The thickness of the metal plate 20 is about 0.2 to 2.0 mm. The sound insulation panel 10 can be manufactured by a manufacturing method in which the metal plate 20 is bonded to both surfaces of the core member 30 with an adhesive to manufacture a metal sandwich panel.

  As an example of a method for constructing a sound insulation wall using a plurality of sound insulation panels 10, as shown in FIG. 2, upright columns 1 made of H steel are provided at intervals corresponding to the width of the sound insulation panel 10, A method of constructing the sound insulation wall 5 by inserting a plurality of sound insulation panels 10 from above between the columns 1 is adopted. The support column 1 is H steel in which flanges 1b are formed on both side edges of the web 1a, and U-shaped grooves 1c are formed on both side surfaces. The support column 1 is set in a state where the groove portions 1c on both sides are directed to the side where the sound insulation panel 10 is raised, and the groove portions 1c of the adjacent support columns 1 face each other. The sound insulation panel 10 is supported in a state where the left and right ends are inserted into the grooves 1c of the support columns 1 from above between the two support columns 1 so that the sound insulation panels 10 stand between the support columns 1. The sound insulation wall 5 is constructed by stacking between 1.

  As shown in FIG. 1C, a convex portion 11 is formed at the upper end portion of the sound insulation panel 10 by the metal plate 20 on the front and back sides being narrowed inwardly to make the width slightly smaller. The upper end of the metal plate 20 is bent at a right angle inside, and the bent portion 21 covers a part of the upper surface of the core member 30. The upper end surface of the sound insulation panel 10 is covered with the upper cover 40 after a moisture-proof waterproofing agent is applied, and an upper cover 40 having a U-shaped cross section is fitted therein. When the sound insulation wall 5 is constructed by stacking a plurality of sound insulation panels 10 between the columns 1 as described above, the top of the sound insulation panel 10 stacked at the top is, for example, a metal headboard as necessary. Is put on.

  As shown in FIG. 1C, the metal plate 20 protrudes below the core member 30 at the lower end of the sound insulation panel 10. The protrusions 22 are formed to be folded inward at a folding angle of 180 °. After being folded, the protrusions 22 are bent at a right angle and the bent portion 23 covers a part of the lower surface of the core member 30. . A waterproof sheet 81 made of butyl rubber or the like is attached to the lower surface of the core member 30 between the bent portions 23 after applying a moisture-proof waterproof agent. Between the protrusions 22 on the front and back sides of the metal plate 20, a groove-like recess 12 is formed in which the protrusion 11 at the upper end fits inside, and the sound insulation panel 10 is inserted between the columns 1 as described above. When stacking, the projecting portion 1 of the lower sound insulation panel 10 is fitted into the recess 12 of the upper sound insulation panel 10 to be laminated so that the laminated state is stabilized.

  Further, a side cover 50 having a U-shaped cross section is fitted into the left and right side end portions of the sound insulation panel 10, and is covered with the side cover 50. A waterproof packing 82 is sandwiched inside the side cover 50. The side cover 50 is fixed to the side end by a fastener 71 such as a bolt. The side cover 50 has a length from the lower end of the upper convex portion 11 to the lower end edge of the sound insulation panel 10 itself, and the width exceeds the depth of the groove portion 1c of the column 1 made of H steel. have. A waterproof sheet 83 made of butyl rubber or the like is attached to the upper surfaces of the left and right ends of the convex portion 11 and the surface of the corner between the upper cover 40 and the side cover 50.

  According to the sound insulation panel 10 of one embodiment, it is possible to suppress the occurrence of damage such as cracks due to shrinkage / expansion due to heat, adhesion of a snow melting agent, and the like, as in a conventional concrete panel, and high durability is exhibited. Moreover, since the core material 30 is compressed with high density, the panel can be thinned and has a feature that it is relatively light. For this reason, there is also an advantage that the workability is improved and the burden on the installer is reduced. Furthermore, since it has not only sound insulation and sound absorption, but also non-combustible heat insulation, it can be used in places where such performance is required.

  In terms of sound insulation, it is possible to obtain sound insulation capable of clearing the specified value when the sound transmission loss test according to “JIS A 1416” is performed.

In addition, in terms of strength, there is an advantage that safety accompanying improvement in strength such as bending strength is improved. For example, the strength is as high as about 2.0 kN / m ² where the wind load (also referred to as wind pressure, which refers to the horizontal load acting in the sound insulation wall transverse direction) P obtained by the following equation (1) is about 2.0 kN / m ^2. It is possible.

P (wind load) kN / m ² = 1/2 · ρ · V2 · C _D (1)
ρ: Air density 1.25 N · sec ² / m ⁴
V: Design wind speed 45m / sec
C _D : Drag coefficient (bridge part) 1.6
In calculating the wind load, the basic wind speed of 37.2 m / sec is adopted with a service life of 20 years and a non-excess probability of 0.6, and the horizontal correction factor of 1.2 is taken to be 37.2 / sec as the design basic wind speed. To do.

  In addition to the sound insulation walls that constitute the road side walls, the sound insulation panel 10 is used for a room that requires sound insulation and sound absorption, such as a karaoke box or a music studio, in constructing a room that is difficult to leak sound. It is suitably used as a wall material for various sound insulation and sound absorption such as a wall material of a clean room and a wall material of a clean room where noise reduction is required.

DESCRIPTION OF SYMBOLS 1 ... Prop 5 ... Sound insulation wall 10 ... Sound insulation panel 20 ... Metal plate 30 ... Core material

Claims (4)

A sound insulation panel comprising a core material compressed at a high density of 125 to 200 kg / m ³ between two metal plates.   The sound insulation panel according to claim 1, wherein the core material is made of a material in which fibers extend in one direction, and the extending direction of the fibers is along the thickness direction.   The sound insulation panel according to claim 1 or 2, wherein the total thickness is 50 to 250 mm.   The sound insulation panel according to claim 1 or 2, wherein the metal plate has a thickness of 0.2 to 2.0 mm.

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