JP2016143049A - Noise barrier - Google Patents

Noise barrier Download PDF

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JP2016143049A
JP2016143049A JP2015021645A JP2015021645A JP2016143049A JP 2016143049 A JP2016143049 A JP 2016143049A JP 2015021645 A JP2015021645 A JP 2015021645A JP 2015021645 A JP2015021645 A JP 2015021645A JP 2016143049 A JP2016143049 A JP 2016143049A
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sound insulation
panel
sound
panels
plate material
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JP6605811B2 (en
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山本 健次郎
Kenjiro Yamamoto
健次郎 山本
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Nippon Steel Metal Products Co Ltd
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Nippon Steel and Sumikin Metal Products Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a noise barrier capable of obtaining desired sound insulation performance by combining one above the other a plurality of stages of a plurality of kinds of sound insulation panels having different sound insulation performance and reducing in a manufacturing cost, a transportation cost, and a fitting cost.SOLUTION: A noise barrier 1 vertically combines a plurality of stages of a plurality of sound insulation panels 3 to shield noise from a noise source. The noise barrier includes a plurality of kinds of sound insulation panels 31 to 33 having different sound insulation performance and the sound insulation panels of different kinds having different sound insulation performance are combined so as to be located one above the other.SELECTED DRAWING: Figure 1

Description

本発明は、騒音源からの騒音を遮断する遮音壁に関し、より詳しくは、複数の遮音パネルが上下に複数段組み合わされた遮音壁に関する。   The present invention relates to a sound insulating wall that blocks noise from a noise source, and more particularly, to a sound insulating wall in which a plurality of sound insulating panels are combined in a plurality of stages.

従来、単一の板材に垂直に入射する音は、単位面積あたりの重量が大きく、周波数が高くなるほど透過損失が増加するいわゆる「質量則」が成り立つことが知られている。また、騒音源からの騒音を遮断する従来の遮音壁は、遮音性能が同じ1種類の遮音パネルから構成されており、遮音性能が異なる複数種類の遮音パネルを複数段上下に組み合わせて1つの遮音壁を作成するという着想はなかった。このため、騒音レベルが目標値を達成できていない場合は、遮音性能が高く重い遮音パネルを遮音壁全体に配置することが行われており、板材の厚肉化による製造コストのコストアップとなるだけでなく、重量が増大することによる運搬コストが嵩むことや施工性が低下することによる取付コストのコストアップにもなるという問題があった。   Conventionally, it is known that a sound incident perpendicularly to a single plate material has a so-called “mass law” in which the weight per unit area increases and the transmission loss increases as the frequency increases. In addition, the conventional sound insulation wall that blocks noise from noise sources is composed of one type of sound insulation panel with the same sound insulation performance, and a single sound insulation wall is formed by combining multiple types of sound insulation panels with different sound insulation performance in multiple stages up and down. There was no idea of creating. For this reason, if the noise level does not achieve the target value, it is possible to place a heavy sound insulation panel with high sound insulation performance over the entire sound insulation wall, which only increases the manufacturing cost due to the thickening of the plate material. In addition, there is a problem that the transportation cost is increased due to the increase in weight and the installation cost is increased due to the decrease in workability.

また、複数種類の遮音パネルを組み合わせて1つの遮音壁とした例としては、特許文献1に、一次遮音パネル12と、二次遮音パネル13と、三次遮音パネル14と、一次及び二次遮音パネル12,13の間に介装される第1のファスナーバー16と、二次及び三次遮音パネル13,14の間に介装される第2のファスナーバー17とを備えた多層防音パネル10が開示されている(特許文献1の特許請求の範囲の請求項1、明細書の段落[0016]〜[0028]、図面の図1、図2等参照)。   In addition, as an example in which a plurality of types of sound insulation panels are combined to form one sound insulation wall, Patent Document 1 discloses a primary sound insulation panel 12, a secondary sound insulation panel 13, a tertiary sound insulation panel 14, and primary and secondary sound insulation panels 12. , 13, and a multilayer soundproof panel 10 including a first fastener bar 16 interposed between the second and third sound insulation panels 13, 14. (Refer to claim 1 of claims of patent document 1, paragraphs [0016] to [0028] of the specification, FIG. 1 and FIG. 2 of the drawings, etc.).

しかし、特許文献1に記載の多層防音パネル10は、低音域での共鳴透過及び高音域でのコインシデンス効果による遮音性能の低下を防止し、低音域から高音域に亘って安定した遮音性能を得ることを目的としたものであり、遮音性能が異なる複数種類の遮音パネルを複数段上下に組み合わるという着想もなく、製造コスト、運搬コスト、及び取付コストのコストダウンを図ることができるものでもなかった。   However, the multilayer soundproof panel 10 described in Patent Document 1 prevents a decrease in sound insulation performance due to resonance transmission in the low sound range and a coincidence effect in the high sound range, and obtains a stable sound insulation performance from the low sound range to the high sound range. This is not intended to reduce the manufacturing cost, transportation cost, and installation cost, without the idea of combining multiple types of sound insulation panels with different sound insulation performance in multiple stages. It was.

特開2001−228880号公報JP 2001-228880 A

そこで、本発明は、前述した問題に鑑みて案出されたものであり、その目的とするところは、遮音性能が異なる複数種類の遮音パネルを複数段上下に組み合わせることにより、所望の遮音性能が得られるとともに、製造コスト、運搬コスト、及び取付コストのコストダウンを図ることができる遮音壁を提供することにある。   Therefore, the present invention has been devised in view of the above-described problems, and the object of the present invention is to achieve a desired sound insulation performance by combining a plurality of types of sound insulation panels having different sound insulation performances in a plurality of stages. Another object of the present invention is to provide a sound insulation wall that can be obtained and can reduce manufacturing costs, transportation costs, and mounting costs.

第1発明に係る遮音壁は、複数の遮音パネルが上下に複数段組み合わされた遮音壁であって、遮音性能が異なる複数種類の遮音パネルを備え、遮音性能の異なる異種類の遮音パネルが上下に組み合されていることを特徴とする。   The sound insulation wall according to the first aspect of the invention is a sound insulation wall in which a plurality of sound insulation panels are combined in a plurality of stages, and includes a plurality of types of sound insulation panels having different sound insulation performance, and different types of sound insulation panels having different sound insulation performances are assembled vertically. It is characterized by being combined.

第2発明に係る遮音壁は、第1発明において、前記遮音パネルは、一面に複数の孔が穿設されたパネル筐体を備え、このパネル筐体内に吸音材が挿置されており、前記パネル筐体内に、遮音性能を向上させるための遮音板材を挿置するか否か、又は挿置する前記遮音板材の重量を変えることにより前記異種類の遮音パネルが構成されていることを特徴とする。   The sound insulation wall according to a second aspect of the present invention is the sound insulation panel according to the first aspect, wherein the sound insulation panel includes a panel housing having a plurality of holes formed on one surface, and a sound absorbing material is inserted into the panel housing. Whether or not to insert a sound insulation plate material for improving sound insulation performance in the housing, or by changing the weight of the sound insulation plate material to be inserted, the different types of sound insulation panels are configured. .

第3発明に係る遮音壁は、第2発明において、前記パネル筐体は、前記異種類の遮音パネル全て共通した形状となっていることを特徴とする。   The sound insulation wall according to a third aspect is characterized in that, in the second aspect, the panel housing has a shape that is common to all the different types of sound insulation panels.

第4発明に係る遮音壁は、第3発明において、前記遮音板材は、短辺である左右の端部が折り返されて前記パネル筐体に止め付けられ、前記パネル筐体は、上端の小端に沿って延伸する凸条部が形成され、下端の小端に沿って延伸する凹条部が形成されており、前記遮音パネルの上下の組み合させは、下段の遮音パネルの前記凸条部に、上段の遮音パネルの前記凹条部が嵌め込まれて組み合わされていることを特徴とする。   The sound insulation wall according to a fourth aspect of the present invention is the sound insulation plate according to the third aspect, wherein the sound insulation plate material is folded at the left and right end portions which are short sides and fastened to the panel housing. Convex ridges extending along the lower end of the lower end of the sound insulation panel are formed by forming a ridge portion extending along the lower end of the lower end of the sound insulation panel. The concave portion of the upper sound insulation panel is fitted and combined.

第5発明に係る遮音壁は、第3発明において、前記遮音板材は、長辺である上下の端部が折り返されて前記パネル筐体に止め付けられ、前記パネル筐体は、上端の小端に沿って延伸して水平方向のズレを係止する係止条部が形成され、下端の小端に沿って前記係止条部を受け入れる段部が形成されており、前記遮音パネルの上下の組み合させは、下段の遮音パネルの前記係止条部に、上段の遮音パネルの前記段部が係止されて組み合わされているとともに、前記係止条部は、前記遮音板材を前記パネル筐体に止め付けるリベットなどの連結具が内部に隠蔽されるように折り返されて形成されていることを特徴とする。   The sound insulation wall according to a fifth aspect of the present invention is the sound insulation wall material according to the third aspect, wherein the upper and lower ends of the sound insulation plate are folded back and fastened to the panel housing, and the panel housing is attached to the small end at the upper end. A locking ridge extending along the horizontal direction to lock the horizontal displacement is formed, and a step portion for receiving the locking ridge is formed along the lower end of the lower end. The step of the upper sound insulation panel is locked and combined with the locking strip of the lower sound insulation panel, and the locking strip has the sound insulating plate material attached to the panel housing. A connecting tool such as a rivet to be fixed is folded back so as to be concealed inside.

第6発明に係る遮音壁は、第2発明ないし第5発明のいずれかの発明において、前記パネル筐体及び前記遮音板材は、鋼板等の金属板から形成されていることを特徴とする。   The sound insulation wall according to a sixth aspect of the present invention is characterized in that, in the invention of any one of the second to fifth aspects, the panel housing and the sound insulation plate material are formed of a metal plate such as a steel plate.

第7発明に係る遮音壁は、第1発明ないし第6発明のいずれかの発明において、前記異種類の遮音パネルの前記複数段の組合せは、段毎に遮音性能を算出して騒音源からの評価領域の騒音レベルを解析し、解析結果が目標値より下回っているとともに、前記遮音パネルの全段の合計重量が最軽量となっている組合せであることを特徴とする。   According to a seventh aspect of the present invention, there is provided the sound insulation wall according to any one of the first to sixth aspects of the invention, wherein the combination of the plurality of stages of the different types of sound insulation panels calculates the sound insulation performance for each stage and is evaluated from the noise source. The noise level in the region is analyzed, and the analysis result is lower than the target value, and the total weight of all the sound insulation panels is the lightest combination.

第1発明〜第7発明によれば、遮音性能が異なる複数種類の遮音パネルを複数段上下に組み合わせるという新しい着想により、騒音源の高さを考慮し、騒音源の近くの高さの段には、遮音性能が高く重い遮音パネルを配置するとともに、騒音源から離れるに従って、遮音性能が低く軽い遮音パネルに変えて配置して遮音壁を構成することができ、遮音壁として所望の遮音性能が得られるとともに、製造コスト、運搬コスト、及び取付コストのコストダウンを図ることができる。   According to the first to seventh inventions, the new idea of combining a plurality of types of sound insulation panels having different sound insulation performances in a plurality of stages up and down allows the height of the noise source to be taken into consideration and the height near the noise source. In addition to placing a heavy sound insulation panel with high sound insulation performance, the sound insulation wall can be configured by changing to a light sound insulation panel with low sound insulation performance as the distance from the noise source, and the desired sound insulation performance can be obtained as a sound insulation wall At the same time, manufacturing costs, transportation costs, and mounting costs can be reduced.

特に、第2発明及び第3発明によれば、遮音パネルの部品を極力共通化して遮音性能の異なる異種類の遮音パネルを製造することができ、スケールメリットを享受することができるとともに、部品の管理、購入コストを下げて、遮音パネルの製造コストをさらに低減することができる。   In particular, according to the second and third inventions, it is possible to manufacture different types of sound insulation panels having different sound insulation performance by sharing the parts of the sound insulation panel as much as possible, and enjoy the merit of scale, Management and purchase costs can be reduced, and the production cost of sound insulation panels can be further reduced.

特に、第4発明及び第5発明によれば、遮音パネルの上下の組み合させが、下段の遮音パネルの凸条部に上段の遮音パネルの凹条部が嵌め込まれているか、又は下段の遮音パネルの係止条部に上段の遮音パネルの段部が係止されていることで固定されているので、上下の遮音壁間に隙間が生じることはなく、隙間からの音漏れを防止することができる。   In particular, according to the fourth and fifth aspects of the invention, the upper and lower sound insulation panels are combined such that the concave portion of the upper sound insulation panel is fitted into the convex portion of the lower sound insulation panel or the lower sound insulation panel. Since the upper sound-insulating panel is fixed by being locked to the locking strip, no gap is generated between the upper and lower sound-insulating walls, and sound leakage from the gap can be prevented. .

特に、第5発明によれば、遮音板材は、長手方向である上下の端部がパネル筐体に止め付けられており、その連結具が係止条部の内部に隠蔽されているので、遮音板材の固定が強固になっているとともに、その連結具が外部から見えないようになっており、見栄えが良いだけでなく、連結具が風雨に晒されることがなくなり、連結具の耐久性が向上して、ひいては、さらに遮音パネルの耐久性が向上する。   In particular, according to the fifth aspect of the invention, the sound insulating plate material has the upper and lower ends that are in the longitudinal direction fixed to the panel housing, and the connecting member is concealed inside the locking strip, so that The plate is firmly fixed, and the connector is not visible from the outside. Not only does it look good, but the connector is not exposed to wind and rain, improving the durability of the connector. As a result, the durability of the sound insulation panel is further improved.

特に、第6発明によれば、安価で耐久性、信頼性のある鋼板等の金属板により前記パネル筐体及び前記遮音板材を形成することができる。   In particular, according to the sixth invention, the panel housing and the sound insulating plate material can be formed of a metal plate such as a steel plate that is inexpensive, durable, and reliable.

特に、第7発明によれば、遮音壁として所望の遮音性能が得られるとともに、合計重量が最軽量となっているので、遮音パネルの材料の増加によるコストアップを防止して最小コストで最大限の遮音性能が得られる。   In particular, according to the seventh invention, the desired sound insulation performance can be obtained as the sound insulation wall, and the total weight is the lightest. Sound insulation performance can be obtained.

本発明の第1実施形態に係る遮音壁を示す正面図である。It is a front view which shows the sound insulation wall which concerns on 1st Embodiment of this invention. 同上の遮音壁の遮音パネルの種類を鉛直面で一部切断して示す部分切断斜視図である。It is a partially cut perspective view which shows the kind of sound insulation panel of a sound insulation wall same as the above by partially cutting on a vertical plane. 同上の遮音パネルのパネル筐体を主に示す斜視図である。It is a perspective view which mainly shows the panel housing | casing of a sound insulation panel same as the above. 同上のパネル筐体を示す正面図である。It is a front view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す右側面図である。It is a right view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す平面図である。It is a top view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す図4のA−A線断面図である。It is the sectional view on the AA line of FIG. 4 which shows a panel housing | casing same as the above. 同上のパネル筐体を示す図4のB−B線断面図である。It is the BB sectional drawing of FIG. 4 which shows a panel housing | casing same as the above. 図1の遮音壁の遮音パネルの支柱への固定状態を主に示す部分拡大水平断面図である。It is a partial expanded horizontal sectional view which mainly shows the fixed state to the support | pillar of the sound insulation panel of the sound insulation wall of FIG. 同上の遮音壁の遮音パネルの下段と上段との連結状態を主に示す部分拡大鉛直断面図である。It is a partial expanded vertical sectional view which mainly shows the connection state of the sound insulation panel of the sound insulation wall same as the above and the lower stage. 本発明の第2実施形態に係る遮音壁の遮音パネルのパネル筐体を主に示す斜視図である。It is a perspective view which mainly shows the panel housing | casing of the sound insulation panel of the sound insulation wall which concerns on 2nd Embodiment of this invention. 同上のパネル筐体を示す正面図である。It is a front view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す右側面図である。It is a right view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す平面図である。It is a top view which shows a panel housing | casing same as the above. 同上のパネル筐体を示す図12のA’−A’線断面図である。It is A'-A 'sectional view taken on the line of FIG. 12 which shows the panel housing | casing same as the above. 同上のパネル筐体を示す図12のB’−B’線断面図である。FIG. 13 is a cross-sectional view taken along line B′-B ′ of FIG. 12 showing the panel housing same as above. 本発明の第2実施形態に係る遮音壁の遮音パネルの下段と上段との連結状態を主に示す部分拡大鉛直断面図である。It is a partial expanded vertical sectional view which mainly shows the connection state of the lower stage and upper stage of the sound insulation panel of the sound insulation wall which concern on 2nd Embodiment of this invention.

以下、本発明の実施形態に係る遮音壁について、図面を参照しながら詳細に説明する。   Hereinafter, a sound insulation wall according to an embodiment of the present invention will be described in detail with reference to the drawings.

[第1実施形態]
先ず、図1〜図10を用いて、本発明の第1実施形態に係る遮音壁について説明する。第1実施形態に係る遮音壁1は、図1に示すように、複数の支柱2と、この支柱2と支柱2との間に嵌め込まれた複数の遮音パネル3などから構成されており、騒音源からの騒音を遮断する機能を有している。本発明に係る遮音壁は、遮音パネルの段数は特に限定されないが、図1には、第1実施形態に係る遮音壁1として遮音パネル3が上下に4段積層された遮音壁を例示している。
[First Embodiment]
First, the sound insulation wall according to the first embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the sound insulation wall 1 according to the first embodiment includes a plurality of support columns 2 and a plurality of sound insulation panels 3 fitted between the support columns 2 and the support columns 2. It has a function to block noise from The number of steps of the sound insulation panel of the sound insulation wall according to the present invention is not particularly limited, but FIG. 1 illustrates a sound insulation wall in which the sound insulation panels 3 are stacked in four stages vertically as the sound insulation wall 1 according to the first embodiment.

(支柱)
本実施形態に係る支柱2は、フランジ間隔が100mm又は175mmのH形鋼からなる。勿論、本発明に係る支柱は、その間に後述の遮音パネル3を止め付けることができ、遮音壁として想定される風圧等に耐えられるものであれば、角形パイプや溝形鋼、I形鋼など他の鋼材や木材その他の素材からなる支柱でも代替可能である。
(Support)
The support | pillar 2 which concerns on this embodiment consists of H-section steel with a flange space | interval of 100 mm or 175 mm. Of course, the pillar according to the present invention can hold a sound insulation panel 3 to be described later and can withstand the wind pressure assumed as a sound insulation wall. It is also possible to replace the pillar made of steel, wood or other materials.

(遮音パネル)
本実施形態に係る遮音パネル3は、図2に示すように、遮音性能の異なるタイプ1〜3の3種類の遮音パネル31、32、33があり、これらの遮音パネル31、32、33は、共通する同一形状のパネル筐体30を有し、このパネル筐体30内に後述の吸音材Pが挿置されている。
(Sound insulation panel)
As shown in FIG. 2, the sound insulation panel 3 according to the present embodiment includes three types of sound insulation panels 31, 32, 33 of types 1 to 3 having different sound insulation performances. A common panel housing 30 having the same shape is provided, and a sound absorbing material P described later is inserted into the panel housing 30.

パネル筐体30は、図3〜図10に示すように、材質が構造用の鋼板からなり、厚さ0.6mmの正面板30a(t0.6×496×1960)と、鉛直断面略コの字状の厚さ1.6mmの背面板30b(t1.6×735×1960)と、左右2枚の厚さ1.6mmの側面板30c,30d(t1.6×135×483)などから構成され、概形が厚さ75mm×高さ500mm×幅1960mmの横長な略直方体のパネルである。   As shown in FIGS. 3 to 10, the panel housing 30 is made of a structural steel plate, and has a front plate 30 a (t0.6 × 496 × 1960) having a thickness of 0.6 mm and a substantially U-shaped vertical section. It consists of a 1.6 mm thick back plate 30b (t1.6 x 735 x 1960) and two left and right side plates 30c and 30d (t1.6 x 135 x 483). It is a horizontally long, substantially rectangular parallelepiped panel that is 75mm thick, 500mm high, and 1960mm wide.

正面板30aは、図3、図4等に示すように、直径15mmの孔が複数穿設されたパンチングメタルであり、上端となる短手方向の端部が折り返されて背面板30bの上面を覆い、鉛直断面において直角三角形の斜辺と垂辺を形成する係止条部30eが長手方向に沿って形成されている。また、背面板30bは、下端の小端となる折り返された下面の正面側に、直角に折り返されて入隅となっている係止条部30eで係止される段部30fが長手方向に沿って形成されている。   As shown in FIGS. 3 and 4, the front plate 30a is a punching metal having a plurality of holes having a diameter of 15 mm, and the upper end of the rear plate 30b is folded back at the upper end. A locking strip portion 30e that covers and forms a hypotenuse and a hypotenuse of a right triangle in a vertical section is formed along the longitudinal direction. Further, the back plate 30b has a stepped portion 30f which is folded at a right angle on the front side of the folded lower surface which is a small end at the lower end and is locked by a locking strip portion 30e which is a corner, in the longitudinal direction. Are formed along.

(吸音材)
なお、パネル筐体30内に挿置される吸音材P(図7、図8参照)は、ポリエステル繊維からなる吸音材である。勿論、本発明に係る吸音材は、他の合成樹脂からなる繊維材でも良いし、発泡樹脂などの多孔質材などであっても良い。要するに、本発明に係る吸音材は、吸音材内において、音波を乱反射させて減衰して吸音できるものであれば適用可能である。
(Sound absorbing material)
The sound absorbing material P (see FIGS. 7 and 8) inserted into the panel housing 30 is a sound absorbing material made of polyester fiber. Of course, the sound absorbing material according to the present invention may be a fiber material made of another synthetic resin, or may be a porous material such as foamed resin. In short, the sound absorbing material according to the present invention is applicable as long as it can absorb sound by irregularly reflecting and attenuating sound waves in the sound absorbing material.

(遮音パネルの種類)
また、3種類の遮音パネル31、32、33の違いは、図2、図8等に示すように、遮音性能を向上させるための遮音板材を挿置するか否か、又は挿置する遮音板材の重量の違いである。一番遮音性能の低いタイプ1の遮音パネル31は、パネル筐体30内に吸音材Pが挿置されているだけで、遮音板材は装着されていない。
(Sound insulation panel types)
Further, the difference between the three types of sound insulation panels 31, 32, 33 is whether or not a sound insulation plate material for improving sound insulation performance is inserted, or a sound insulation plate material to be inserted, as shown in FIGS. Is the difference in weight. The sound insulation panel 31 of type 1 having the lowest sound insulation performance has only the sound absorbing material P inserted in the panel housing 30, and no sound insulation plate material is attached.

遮音性能が中程度のタイプ2の遮音パネル32は、図2、図7、図8等に示すように、パネル筐体30の鉛直断面中央付近に遮音性能を向上させるための遮音板材S1が取り付けられており、その両側(正面側と背面側)に吸音材Pが配置されている。この遮音板材S1は、構造用の鋼板からなる厚さ1.6mmの鋼板(t1.6×580×1800)であり、背景技術で述べた「質量則」により音響透過損失を大きくして遮音する機能を有している。   As shown in FIGS. 2, 7, 8, etc., the type 2 sound insulation panel 32 having a medium sound insulation performance is attached with a sound insulation plate material S <b> 1 for improving the sound insulation performance near the center of the vertical section of the panel housing 30. The sound absorbing material P is arranged on both sides (front side and back side). This sound insulation plate material S1 is a steel plate (t1.6 × 580 × 1800) made of a structural steel plate with a thickness of 1.6 mm, and has a function to increase sound transmission loss by the “mass law” described in the background art and to perform sound insulation. have.

遮音性能が一番高いタイプ3の遮音パネル33には、遮音板材S2が挿置され、この遮音板材S2は、構造用の鋼板からなる厚さ3.2mmの鋼板(t3.2×580×1800)である。   The sound insulation panel 33 of the type 3 having the highest sound insulation performance is provided with a sound insulation plate material S2. The sound insulation plate material S2 is a structural steel plate 3.2 mm thick steel plate (t3.2 × 580 × 1800). It is.

前述の遮音板材S1及び遮音板材S2のパネル筐体30への固定は、図8に示すように、遮音板材S1及びの遮音板材S2の長辺である上下の端部が折り返されてパネル筐体30の内面にステンレス製のリベットなどの連結具Rで止め付けられることにより固定されている。このように、パネル筐体30では、遮音板材S1及びの遮音板材S2の長辺を固定できるため、筐体30へ強固に固定することができる。   As shown in FIG. 8, the upper and lower ends of the sound insulating plate material S1 and the sound insulating plate material S2 are folded back to fix the panel to the panel housing 30. It is fixed to the inner surface of 30 by being fastened with a connector R such as a rivet made of stainless steel. Thus, in the panel housing | casing 30, since the long side of the sound insulation board | plate material S1 and the sound insulation board | plate material S2 can be fixed, it can fix to the housing | casing 30 firmly.

また、図8に示すように、この遮音板材S1及び遮音板材S2の上端を固定する連結具Rの頭は、直角三角形状の係止条部30eの内部に収められており、遮音板材S1及び遮音板材S2の下端を固定する連結具Rの頭は、前述の段部30f内に収められている。このため、見栄えが良いだけでなく、連結具Rが風雨に晒されることがなくなり、連結具Rの耐久性が向上して、ひいては、さらに遮音パネル3の耐久性が向上する。   Further, as shown in FIG. 8, the heads of the couplings R that fix the upper ends of the sound insulation plate material S1 and the sound insulation plate material S2 are housed inside the right-angled triangular locking strip portion 30e, and the sound insulation plate material S1 and The head of the connector R that fixes the lower end of the sound insulating plate S2 is housed in the step 30f described above. For this reason, not only the appearance is good, but the connector R is not exposed to wind and rain, the durability of the connector R is improved, and the durability of the sound insulation panel 3 is further improved.

(遮音パネルの支柱への固定)
次に、図9を用いて、遮音パネル3の支柱2への固定手段について説明する。遮音パネル3の左右の端部(長手方向の端部)は、支柱2のフランジ間に挿置され、M10のジャッキボルトJを伸長させることで突っ張ってフランジ間に固定されている。このように、本実施形態に係る遮音パネル3は、ジャッキボルトJを伸長させて支柱2へ固定するので、H形鋼のフランジ外面間隔(A寸法)が100mm〜125mmに対応することができる。なお、図9は、H形鋼のフランジ外面間隔(A寸法)が125mmの場合を例示している。
(Fixing the sound insulation panel to the support)
Next, the means for fixing the sound insulation panel 3 to the column 2 will be described with reference to FIG. The left and right end portions (longitudinal end portions) of the sound insulation panel 3 are inserted between the flanges of the support column 2, and are stretched and fixed between the flanges by extending the jack bolt J of M10. Thus, since the sound insulation panel 3 according to the present embodiment extends the jack bolt J and fixes it to the support column 2, the flange outer surface spacing (A dimension) of the H-shaped steel can correspond to 100 mm to 125 mm. In addition, FIG. 9 has illustrated the case where the flange outer surface space | interval (A dimension) of H-section steel is 125 mm.

また、遮音パネル3の左右の端部には、ジャッキボルトJを介して伝達される圧縮力に対抗するため、構造用の鋼板の厚さ1.6mmの鋼板から水平断面コの字状に折り曲げられた左右一対の補強部材F(t1.6×360×60)が嵌装されている。   In addition, the right and left ends of the sound insulation panel 3 are folded from a structural steel plate having a thickness of 1.6 mm into a U-shape in a horizontal section in order to resist the compressive force transmitted through the jack bolt J. A pair of left and right reinforcing members F (t1.6 × 360 × 60) are fitted.

(遮音パネルの下段と上段との連結)
次に、図10を用いて、下段の遮音パネル3と、上段の遮音パネル3の連結について説明する。遮音パネル3の下段と上段との連結は、下段の遮音パネル3の上に上段の遮音パネル3を載置して前述のように、それぞれの遮音パネル3を支柱2へ固定するだけであるが、図に示すように、下段の遮音パネル3の上に上段の遮音パネル3を載置した場合に、上段の遮音パネル3の段部30fが、下段の遮音パネル3の係止条部30eの三角形状に係止されることとなる。このため、上段の遮音パネル3と下段の遮音パネル3とが水平方向(長手方向と直交する方向)にズレるおそれがなく、耐風圧性が向上することにより、遮音パネル3の耐久性が向上する。
(Connection between the lower and upper sound insulation panels)
Next, the connection between the lower sound insulation panel 3 and the upper sound insulation panel 3 will be described with reference to FIG. The lower and upper stages of the sound insulation panel 3 are simply connected by placing the upper sound insulation panel 3 on the lower sound insulation panel 3 and fixing each of the sound insulation panels 3 to the column 2 as described above. As shown in the figure, when the upper sound insulation panel 3 is placed on the lower sound insulation panel 3, the step 30f of the upper sound insulation panel 3 is connected to the locking portion 30e of the lower sound insulation panel 3. It will be locked in a triangular shape. For this reason, there is no possibility that the upper sound insulation panel 3 and the lower sound insulation panel 3 are displaced in the horizontal direction (direction orthogonal to the longitudinal direction), and the wind pressure resistance is improved, so that the durability of the sound insulation panel 3 is improved.

[第2実施形態]
次に、図11〜図17を用いて、本発明の第2実施形態に係る遮音壁について説明する。第2実施形態に係る遮音壁1’が、第1実施形態に係る遮音壁1と相違する点は、パネル筐体の形状等だけであるので、その点について主に説明し、同一構成は同一符号を付し、詳細な説明を省略する。遮音壁1’は、遮音壁1と同様に、複数の支柱2と、この支柱2と支柱2との間に嵌め込まれた複数の遮音パネル3’などから構成されている(図示せず図1参照)。
[Second Embodiment]
Next, a sound insulation wall according to a second embodiment of the present invention will be described with reference to FIGS. Since the sound insulation wall 1 ′ according to the second embodiment is different from the sound insulation wall 1 according to the first embodiment only in the shape of the panel housing and the like, this point will be mainly described, and the same components are denoted by the same reference numerals. A detailed description will be omitted. The sound insulation wall 1 ′ is composed of a plurality of support columns 2 and a plurality of sound insulation panels 3 ′ fitted between the support columns 2 and the support columns 2 (not shown, refer to FIG. 1). .

(遮音パネル)
本実施形態に係る遮音パネル3’は、遮音パネル3と同様に、遮音性能の異なるタイプ1〜3の3種類の遮音パネル31’、32’、33’があり(図示せず)、これらの遮音パネル31’、32’、33’は、共通する同一形状のパネル筐体30’を有し、このパネル筐体30’内に前述の吸音材Pが挿置されている(図2参照)。
(Sound insulation panel)
Similar to the sound insulation panel 3, the sound insulation panel 3 'according to the present embodiment includes three types of sound insulation panels 31', 32 'and 33' (not shown) having different sound insulation performances (not shown). The sound insulation panels 31 ′, 32 ′, 33 ′ have a common panel casing 30 ′ having the same shape, and the aforementioned sound absorbing material P is inserted into the panel casing 30 ′ (see FIG. 2). .

(遮音パネルの種類)
一番遮音性能の低いタイプ1の遮音パネル31’は、パネル筐体30’内に吸音材Pが挿置されているだけで、遮音板材は装着されていない。遮音性能が中程度のタイプ2の遮音パネル32’は、図に示すように、パネル筐体30’の鉛直断面中央付近に遮音性能を向上させるための遮音板材S1’が取り付けられており、その両側(正面側と背面側)に吸音材Pが配置されている。また、遮音性能が一番高いタイプ3の遮音パネル33’には、遮音板材S2が挿置されている。
(Sound insulation panel types)
The sound insulation panel 31 'of type 1 having the lowest sound insulation performance has only the sound absorbing material P inserted in the panel housing 30', and no sound insulation plate material is attached. As shown in the figure, the type 2 sound insulation panel 32 ′ having a medium sound insulation performance is provided with a sound insulation plate material S1 ′ for improving the sound insulation performance near the center of the vertical section of the panel housing 30 ′. The sound absorbing material P is arranged on both sides (front side and back side). In addition, the sound insulation plate material S2 is inserted into the type 3 sound insulation panel 33 ′ having the highest sound insulation performance.

この遮音板材S1’は、図11等に示すように、構造用の鋼板からなる厚さ1.6mmの鋼板(t1.6×487×1910)であり、遮音板材S2’は、同様に、構造用の鋼板からなる厚さ3.2mmの鋼板(t3.2×580×1800)である。これらの遮音板材S1’及び遮音板材S2’は、図に示すように、左右の端部が折り曲げられてパネル筐体30’の内面にステンレス製のリベットなどの連結具Rで止め付けられている。   As shown in FIG. 11 and the like, the sound insulating plate material S1 ′ is a 1.6 mm thick steel plate (t1.6 × 487 × 1910) made of a structural steel plate, and the sound insulating plate material S2 ′ is similarly used for a structure. A steel plate (t3.2 × 580 × 1800) having a thickness of 3.2 mm made of a steel plate. As shown in the figure, the sound insulating plate material S1 ′ and the sound insulating plate material S2 ′ are bent at the left and right end portions and fastened to the inner surface of the panel housing 30 ′ with a connector R such as a stainless steel rivet. .

パネル筐体30’は、前述のパネル筐体30と同材からなり、概形も略同寸法であり、略同構成の正面板30a’(t0.6×487×1960)と、背面板30b’(t1.6×735×1960)と、側面板30c’,30d’(t1.6×135×483)と、補強部材Fなどから構成されている。   The panel casing 30 'is made of the same material as the panel casing 30 described above, and has a general shape that is substantially the same size. The front panel 30a' (t0.6 × 487 × 1960) and the rear panel 30b having the same configuration. '(T1.6 × 735 × 1960), side plates 30c ′ and 30d ′ (t1.6 × 135 × 483), a reinforcing member F, and the like.

(相違点)
パネル筐体30’が、前述のパネル筐体30と相違する点は係止条部30eや段部30fではなく、図11〜図17に示すように、背面板30b’の上端の小端となる折り返された上面には、長手方法に沿って延伸する凸条部30e’が形成され、背面板30b’の下端の小端となる折り返された下面には、長手方向に沿って延伸する凹条部30f’が形成されている点である。
(Difference)
The panel housing 30 ′ is different from the above-described panel housing 30 in that it is not the locking strip portion 30e or the stepped portion 30f, but the small end at the upper end of the back plate 30b ′ as shown in FIGS. A ridge 30e ′ extending along the longitudinal method is formed on the folded upper surface, and a recessed surface extending along the longitudinal direction is formed on the folded lower surface serving as a small end at the lower end of the back plate 30b ′. This is the point at which the strip 30f 'is formed.

(遮音パネルの下段と上段との連結)
パネル筐体30’が、このように構成されているため、遮音パネル3’の下段と上段との連結は、遮音パネル3と同様に、下段の遮音パネル3’の上に上段の遮音パネル3’を載置してそれぞれの遮音パネル3’を支柱2へ固定するだけであるが、図17に示すように、下段の遮音パネル3’の上に上段の遮音パネル3’を載置した場合に、上段の遮音パネル3’の凹条部30f’が、下段の遮音パネル3の凸条部30e’に嵌合されることとなる。このため、上段の遮音パネル3’と下段の遮音パネル3’とが水平方向(長手方向と直交する方向)にズレるおそれがなく、耐風圧性が向上することにより、遮音パネル3’の耐久性が向上する。
(Connection between the lower and upper sound insulation panels)
Since the panel housing 30 ′ is configured as described above, the lower and upper sound insulation panels 3 ′ are connected to the upper sound insulation panel 3 ′ on the lower sound insulation panel 3 ′ in the same manner as the sound insulation panel 3. In the case where the upper sound insulation panel 3 'is placed on the lower sound insulation panel 3' as shown in FIG. In addition, the groove 30f ′ of the upper sound insulation panel 3 ′ is fitted into the protrusion 30e ′ of the lower sound insulation panel 3. For this reason, there is no possibility that the upper sound insulation panel 3 ′ and the lower sound insulation panel 3 ′ are shifted in the horizontal direction (direction orthogonal to the longitudinal direction), and the wind pressure resistance is improved, thereby improving the durability of the sound insulation panel 3 ′. improves.

以上説明した遮音壁1及び遮音壁1’によれば、遮音性能が異なる複数種類の遮音パネルを複数段上下に組み合わせるという新しい着想により、騒音源の高さを考慮し、騒音源の近くの高さの段には、遮音性能が高く重い遮音パネル33、33’を配置するとともに、騒音源から離れるに従って、遮音性能が低く軽い遮音パネル31,31’に変えて配置して遮音壁1又は遮音壁1’を構成することができ、遮音壁として所望の遮音性能が得られるとともに、製造コスト、運搬コスト、及び取付コストのコストダウンを図ることができる。   According to the sound insulation wall 1 and the sound insulation wall 1 ′ described above, the height of the noise source is considered in consideration of the height of the noise source by considering a new idea of combining a plurality of types of sound insulation panels having different sound insulation performances in a plurality of stages. In the stage, sound insulation panels 33 and 33 ′ having high sound insulation performance and heavy are arranged, and the sound insulation walls 1 or 1 ′ are arranged by changing to light insulation panels 31 and 31 ′ having low sound insulation performance and light as the distance from the noise source increases. As a sound insulation wall, a desired sound insulation performance can be obtained, and manufacturing costs, transportation costs, and installation costs can be reduced.

また、遮音性能の違う3種類の遮音パネル31,32,33又は遮音パネル31’,32’,33’であっても、共通した同一のパネル筐体30又はパネル筐体30’と、同材からなる吸音材Pと、2種類の遮音板材S1,遮音板材S2又は遮音板材S1’,遮音板材S2’の主要部材だけで構成することができる。このため、遮音壁1及び遮音壁1’によれば、スケールメリットを享受することができるとともに、部品の管理、購入コストを下げて、製造コストをさらに低減することができる。   Moreover, even if it is three types of sound insulation panels 31,32,33 or sound insulation panels 31 ', 32', 33 'from which sound insulation performance differs, it is the same material as the same panel housing | casing 30 or panel housing | casing 30'. The sound-absorbing material P can be composed of only two main members, the sound-insulating plate material S1, the sound-insulating plate material S2, or the sound-insulating plate material S1 ′ and the sound-insulating plate material S2 ′. For this reason, according to the sound insulation wall 1 and the sound insulation wall 1 ′, it is possible to enjoy the merit of scale, and it is possible to further reduce the manufacturing cost by reducing the management and purchase costs of parts.

次に、遮音パネルの全段の合計重量が最軽量となる組合せの決定方法の一例について説明する。
各段の遮音パネルのスリット減衰(開口からの透過減衰)を算出する。
Next, an example of a method for determining a combination in which the total weight of all the sound insulating panels is the lightest will be described.
The slit attenuation (transmission attenuation from the opening) of the sound insulation panel at each stage is calculated.

そして、算出したスリット減衰と各遮音パネルの遮音性能に応じて各段の遮音パネルの透過減衰を算出する。   Then, the transmission attenuation of each sound insulation panel is calculated according to the calculated slit attenuation and the sound insulation performance of each sound insulation panel.

次に、各段の遮音パネルの透過減衰を足し合わせて全段、即ち、壁全体の透過減衰を算出するとともに、遮音壁の先端形状を反映し、遮音壁全体の回析減衰、及び距離減衰を算出し、騒音源の音圧レベルから壁全体の透過減衰と距離減衰と回析減衰との合計を差し引き、受音点の騒音レベルを求める。   Next, the transmission attenuation of the sound insulation panels at each stage is added together to calculate the transmission attenuation of all stages, that is, the entire wall, and the diffraction attenuation and distance attenuation of the entire sound insulation wall are calculated by reflecting the shape of the tip of the sound insulation wall. Then, the noise level at the sound receiving point is obtained by subtracting the total of transmission attenuation, distance attenuation and diffraction attenuation of the entire wall from the sound pressure level of the noise source.

このような算出方法により、遮音性能の違う全ての種類の遮音パネルの組み合わせにおいて、受音点の騒音レベルを算出する。そして、騒音レベルを算出する受音点を評価領域において一定間隔ごとに繰り返し、評価領域の騒音レベルの分布等を解析して、解析結果が目標値より下回っているとともに、遮音パネルの全段の合計重量が最軽量となっている組合せを決定する。   With such a calculation method, the noise level of the sound receiving point is calculated for all types of sound insulation panels having different sound insulation performance. Then, the sound receiving points for calculating the noise level are repeated at regular intervals in the evaluation area, the noise level distribution in the evaluation area is analyzed, and the analysis result is below the target value. Determine the combination with the lightest total weight.

このように、遮音性能を満足するとともに遮音パネルの全段の合計重量が最軽量となる組合せを決定すれば、遮音壁として所望の遮音性能が得られるうえ、合計重量が最軽量となっているので、最小コストで最大限の遮音性能を得ることができる。   In this way, if the combination that satisfies the sound insulation performance and the total weight of all stages of the sound insulation panel is the lightest is determined, the desired sound insulation performance can be obtained as the sound insulation wall, and the total weight is the lightest. The maximum sound insulation performance can be obtained at a minimum cost.

以上、本発明の実施形態に係る遮音壁について詳細に説明したが、前述した又は図示した実施形態は、いずれも本発明を実施するにあたって具体化した一実施形態を示したものに過ぎず、これらによって本発明の技術的範囲が限定的に解釈されてはならないものである。特に、遮音壁として遮音パネルを直線状に積み上げ鉛直面に沿った遮音壁を例示したが、途中で屈曲していても構わない。その場合でも同様の作用効果を奏することは明らかである。   As described above, the sound insulation wall according to the embodiment of the present invention has been described in detail. However, each of the above-described or illustrated embodiments is merely an embodiment that is embodied in carrying out the present invention, and accordingly, The technical scope of the present invention should not be limitedly interpreted. In particular, the sound insulation panel is linearly stacked as the sound insulation wall, and the sound insulation wall along the vertical plane is exemplified, but it may be bent in the middle. Even in such a case, it is clear that the same effect can be obtained.

また、遮音壁として共通した形状のパネル筐体からなる遮音パネルを上下に組み合わせたものを例示して説明したが、複数段に積み上げられた遮音パネルの一部の代わりに開口を有するパネルや透明なパネルが挿置されていたりするなど違う形態のパネル筐体からなるパネルが嵌め込まれた遮音壁であっても構わない。要するに、遮音性能の異なる異種類の遮音パネルが上下に組み合されている部分がし遮音壁の一部にあればよい。その場合でも、遮音壁として所望の遮音性能が得られる最適な配置ができ、最小コストで最大限の遮音性能を得ることができる。   In addition, the sound insulation panel composed of a panel housing having a common shape as the sound insulation wall has been exemplified and described, but a panel having an opening instead of a part of the sound insulation panels stacked in multiple stages or a transparent It may be a sound insulation wall in which a panel made of a panel housing of a different form such as a panel is inserted is fitted. In short, it suffices if a part where different types of sound insulation panels with different sound insulation performance are combined vertically is part of the sound insulation wall. Even in such a case, it is possible to optimally arrange the sound insulation wall so that a desired sound insulation performance can be obtained, and the maximum sound insulation performance can be obtained at a minimum cost.

1,1’ :遮音壁
2 :支柱
3,3’ :遮音パネル
31,32,33 :遮音パネル
31’,32’,33’ :遮音パネル
30,30’ :パネル筐体
30a,30a’ :正面板
30b、30b’ :平面板
30c,30c’,30d,30d’:側面板
30e :係止条部
30e’ :凸条部
30f :段部
30f’ :凹条部
F :補強部材
J :ジャッキボルト
P :吸音材
R :連結具
S1,S1’,S2,S2’ :遮音板材
1, 1 ': Sound insulation wall 2: Support columns 3, 3': Sound insulation panels 31, 32, 33: Sound insulation panels 31 ', 32', 33 ': Sound insulation panels 30, 30': Panel housings 30a, 30a ': Front plate 30b, 30b ': plane plates 30c, 30c', 30d, 30d ': side plate 30e: locking strip portion 30e': convex strip portion 30f: stepped portion 30f ': concave strip portion F: reinforcing member J: jack bolt P : Sound absorbing material R: Connector S1, S1 ', S2, S2': Sound insulation board material

Claims (7)

複数の遮音パネルが上下に複数段組み合わされた遮音壁であって、
遮音性能が異なる複数種類の遮音パネルを備え、遮音性能の異なる異種類の遮音パネルが上下に組み合されていること
を特徴とする遮音壁。
A sound insulation wall in which a plurality of sound insulation panels are combined in a plurality of stages above and below,
A sound insulation wall comprising a plurality of types of sound insulation panels having different sound insulation performance, and different types of sound insulation panels having different sound insulation performance being combined vertically.
前記遮音パネルは、一面に複数の孔が穿設されたパネル筐体を備え、このパネル筐体内に吸音材が挿置されており、
前記パネル筐体内に、遮音性能を向上させるための遮音板材を挿置するか否か、又は挿置する前記遮音板材の重量を変えることにより前記異種類の遮音パネルが構成されていること
を特徴とする請求項1に記載の遮音壁。
The sound insulation panel includes a panel housing having a plurality of holes formed on one surface, and a sound absorbing material is inserted into the panel housing.
In the panel housing, the different types of sound insulation panels are configured by whether or not a sound insulation plate material for improving sound insulation performance is inserted or by changing the weight of the sound insulation plate material to be inserted. The sound insulation wall according to claim 1.
前記パネル筐体は、前記異種類の遮音パネル全て共通した形状となっていること
を特徴とする請求項2に記載の遮音壁。
The sound insulation wall according to claim 2, wherein the panel casing has a shape common to all the different types of sound insulation panels.
前記遮音板材は、短辺である左右の端部が折り返されて前記パネル筐体に止め付けられ、
前記パネル筐体は、上端の小端に沿って延伸する凸条部が形成され、下端の小端に沿って延伸する凹条部が形成されており、
前記遮音パネルの上下の組み合させは、下段の遮音パネルの前記凸条部に、上段の遮音パネルの前記凹条部が嵌め込まれて組み合わされていること
を特徴とする請求項3に記載の遮音壁。
The sound insulating plate material is folded to the left and right ends that are short sides and fastened to the panel housing,
The panel casing is formed with a ridge extending along the small end at the upper end, and formed with a ridge extending along the small end at the lower end,
The sound insulation wall according to claim 3, wherein the upper and lower sound insulation panels are combined by combining the protrusions of the lower sound insulation panel with the concave portions of the upper sound insulation panel being fitted together. .
前記遮音板材は、長辺である上下の端部が折り返されて前記パネル筐体に止め付けられ、
前記パネル筐体は、上端の小端に沿って延伸して水平方向のズレを係止する係止条部が形成され、下端の小端に沿って前記係止条部を受け入れる段部が形成されており、
前記遮音パネルの上下の組み合させは、下段の遮音パネルの前記係止条部に、上段の遮音パネルの前記段部が係止されて組み合わされているとともに、
前記係止条部は、前記遮音板材を前記パネル筐体に止め付けるリベットなどの連結具が内部に隠蔽されるように折り返されて形成されていること
を特徴とする請求項3に記載の遮音壁。
The sound insulation plate material is fastened to the panel housing by folding the upper and lower ends that are long sides,
The panel casing is formed with a locking strip that extends along the small end of the upper end and locks the horizontal displacement, and a step portion that receives the locking strip is formed along the small end of the lower end. Has been
The combination of the top and bottom of the sound insulation panel is combined with the stepped portion of the upper sound insulation panel being engaged with the engagement strip portion of the lower sound insulation panel,
The sound insulation wall according to claim 3, wherein the locking strip portion is formed by being folded back so that a coupling tool such as a rivet for fastening the sound insulation plate material to the panel housing is concealed inside. .
前記パネル筐体及び前記遮音板材は、鋼板等の金属板から形成されていること
を特徴とする請求項2ないし5のいずれかに記載の遮音壁。
The sound insulation wall according to any one of claims 2 to 5, wherein the panel housing and the sound insulation plate material are formed of a metal plate such as a steel plate.
前記異種類の遮音パネルの前記複数段の組合せは、段毎に遮音性能を算出して騒音源からの評価領域の騒音レベルを解析し、解析結果が目標値より下回っているとともに、前記遮音パネルの全段の合計重量が最軽量となっている組合せであること
を特徴とする請求項1ないし6のいずれかに記載の遮音壁。
The combination of the plurality of stages of the different types of sound insulation panels calculates the sound insulation performance for each stage and analyzes the noise level of the evaluation region from the noise source, and the analysis result is below the target value, and the sound insulation panel The sound insulation wall according to any one of claims 1 to 6, wherein the total weight of all the stages is a lightest combination.
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JP2018081271A (en) * 2016-11-18 2018-05-24 日鐵住金建材株式会社 Combination search program and system for sound insulation board
JP2020176448A (en) * 2019-04-18 2020-10-29 日鉄建材株式会社 Sound absorption panel
JP2021143459A (en) * 2020-03-10 2021-09-24 日鉄建材株式会社 Sound insulation panel, sound insulation wall, and construction method of sound insulation wall
JP7408110B1 (en) 2023-07-26 2024-01-05 田中建設株式会社 Sound absorbing panel structure

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JP2011012399A (en) * 2009-06-30 2011-01-20 Kyushu Univ Sound insulating wall

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JP2018081271A (en) * 2016-11-18 2018-05-24 日鐵住金建材株式会社 Combination search program and system for sound insulation board
JP2020176448A (en) * 2019-04-18 2020-10-29 日鉄建材株式会社 Sound absorption panel
JP2021143459A (en) * 2020-03-10 2021-09-24 日鉄建材株式会社 Sound insulation panel, sound insulation wall, and construction method of sound insulation wall
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