JP3844394B2 - Attaching structure for walkway material of sound absorption system for both footing and underside of underside of elevated road - Google Patents

Attaching structure for walkway material of sound absorption system for both footing and underside of underside of elevated road Download PDF

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JP3844394B2
JP3844394B2 JP04075598A JP4075598A JP3844394B2 JP 3844394 B2 JP3844394 B2 JP 3844394B2 JP 04075598 A JP04075598 A JP 04075598A JP 4075598 A JP4075598 A JP 4075598A JP 3844394 B2 JP3844394 B2 JP 3844394B2
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隆司 吉村
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日鐵建材工業株式会社
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Description

【０００１】
【発明の属する技術分野】
この発明は、高架道路や高架鉄道等（以下、高架道路と総称する。）の桁下裏面側における景観性の保持と、下方の道路及び上方の高架道路を走行する自動車等に起因する騒音、反射音を低減する足場兼用吸音システムの歩廊材取付け構造に関する。
【０００２】
【従来の技術】
従来、高架道路の桁下裏面側における景観性の保持と下方の道路及び上方の高架道路を走行する自動車等に起因する騒音、反射音を低減すると共に、点検、補修用の歩廊用吊り足場を兼ねる足場兼用吸音システムが、例えば本出願人が先に出願した特願平８−３０３１３６号の明細書及び図面に提案されている。
【０００３】
前記システムにおける歩廊材は、図９に示したように、桁下裏面側に吊り下げた小梁２の上側フランジの上面２０に歩廊材としての波形プレート３を載置し、波形の筋の長手方向に隣り合う波形プレート３の端部３０同士は、施工上の誤差又は熱的な伸縮を吸収できるように通例１０mm程度の隙間４をあけて並べられ、小梁２との交差部分がボルト止めされている。前記隙間４の確保は必須と考えられている。
【０００４】
【本発明が解決しようとする課題】
前記歩廊材としての波形プレート３は、小梁２の上面２０に当接する谷の部分３１がクリップボルト５を介して前記小梁２へボルト止めされるが、一方、小梁２の上面２０から立ち上がる山の部分３２は小梁２の上面２０から浮き上がった形状がそのまま開口部３４を形成し、前記隙間４に連通することとなる。
【０００５】
したがって、波形プレート３の上方又は下方から来る騒音は、図９に矢印Ｎ又はＮ´で示したように、前記隙間４及び開口部３４を通って相互方向に漏れ出ることとなり、足場兼用吸音システムの騒音低減化の効果の点から好ましいとは云えない。
また、点検、補修のために作業員が歩廊材上を歩行する際には、作業員の足が隙間４に面した端部３０を踏みつけると、波形プレート３は薄板であるため作業員の体重Ｇにより下方に撓み、隣接の端部３０に対して段差Ｈが生じ、作業員のつま先が引っ掛かってよろけるなど、歩行上の安全性を妨げるおそれがある。
【０００６】
この発明の目的は、波形プレートを小梁の上側フランジ上へ取付けた際に発生する開口部分の音漏れを防ぐとともに、作業員が波形プレート上を歩行する際に足を躓いてよろけたり転倒する危険のない構成に改良した高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造を提供することである。
【０００７】
【課題を解決するための手段】
上記課題を解決するための手段として、請求項１に記載した発明に係る高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造は、
高架道路等の桁下裏面側に吊り下げた小梁に景観材、吸音材と共に歩廊材としての波形プレートが小梁の上側フランジ上に載置され、波形の筋の長手方向に隣り合う波形プレートの端部同士は若干の隙間をあけて並べられ、波形プレートは小梁との交差部分がボルト止めされている高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造において、
前記波形プレートの端部は、その山の部分の開口を閉鎖する形状の妻当板と共に小梁へボルト止めされていること、
前記妻当板は、小梁のフランジ上面に置かれる水平面部と、波形プレートのうち小梁上面に対して立ち上がる山の部分の垂直横断面形状と略同形、同大で前記水平面部から略垂直に立ち上がる妻当部とから成り、前記水平面部には波形プレートの谷の部分が当接する部位に同波形プレートのボルト孔と芯が一致する配置にボルト孔が設けられていること、
小梁の上側フランジへ引っ掛けて取付けることが可能な略コ字形のクリップ部と、該クリップ部の上面に垂直に取付けられたボルト部とから成るクリップボルトを小梁の上側フランジ上に設置し、前記妻当板のボルト孔及び前記波形プレート端部のボルト孔を前記ボルト部へ共通に通しナットで締付け固定されていることを特徴とする。
【０００８】
請求項２に記載した発明に係る高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造は、
請求項１に記載したクリップボルトは、そのボルト部に通す孔を有する幅止め板により拘束され小梁の上側フランジ上に設置されていること、
妻当板の水平面部の下面には、前記クリップボルトのクリップ部及び幅止め板の幅寸及び合計厚さより少し大きい幅及び深さの凹みが各ボルト孔の部位に設けられていること、
妻当板の妻当部の上端には、波形プレートの山の部分の内側へ嵌まるように屈曲された縁部が設けられていること、をそれぞれ特徴とする。
【０００９】
請求項３に記載した発明に係る高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造は、
高架道路等の桁下裏面側に吊り下げた小梁に景観材、吸音材と共に歩廊材としての波形プレートが小梁の上側フランジ上に載置され、波形の筋の長手方向に隣り合う波形プレートの端部同士は若干の隙間をあけて並べられ、波形プレートは小梁との交差部分がボルト止めされている高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造において、
前記波形プレートの端部は、その山の部分の開口を閉鎖する形状の妻当板と共に小梁へボルト止めされていること、
前記妻当板は、小梁のフランジ上面に置かれる当接部と、前記当接部の下縁から後述のクリップボルトのクリップ部及び幅止め板の合計厚さ相当だけ浮上した位置に設けられた水平面部と、波形プレートのうち小梁上面に対して立ち上がる山の部分の垂直横断面形状と略同形、同大で前記水平面部から略垂直に立ち上がる妻当部とから成り、前記水平面部には波形プレートの谷の部分が当接する部位に同波形プレートのボルト孔と芯が一致する配置にボルト孔が設けられていること、
小梁の上側フランジへ引っ掛けて取付けることが可能な略コ字形のクリップ部と、該クリップ部の上面に垂直に取付けられたボルト部とから成るクリップボルトを幅止め板により拘束して小梁の上側フランジ上に設置し、前記妻当板のボルト孔及び前記波形プレート端部のボルト孔を前記ボルト部へ共通に通しナットで締付け固定されていることを特徴とする。
【００１０】
【発明の実施形態及び実施例】
請求項１に記載した発明に係る高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造は、図１に実施例を示したように、高架道路等の桁下裏面側に吊り下げた小梁２の上側フランジ２０の上面に歩廊材としての波形プレート３が載置され、波形の筋の長手方向に隣り合う波形プレート３の端部３０同士は若干の隙間４をあけて並べられ、波形プレート３は小梁２との交差部分がボルト止めされる高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造として好適に実施され、前記波形プレート３の端部３０は、図１に示したように、その山の部分３２の開口を閉鎖する形状の妻当板１を介して小梁２にボルト止めされることが特徴である。
【００１１】
妻当板１は、図１が明解なように小梁２のフランジ２０の上面に置かれる水平面部１０と、波形プレート３のうち小梁２の上面２０に対して立ち上がる山の部分３２の垂直横断面形状と略同形、同大で前記水平面部１０から略垂直に立ち上がる略台形状の妻当部１１とから成り、厚さ０．６mm程度の薄鋼板の加工品である。妻当部１１は、水平面部１０から立ち上がり、波形プレート３の山の部分３２の開口を塞ぐ形態であれば良く、図示したような垂直な立ち上がりに限らず、傾斜した構造でもよい。
【００１２】
水平面部１０には、波形プレート３の谷の部分３１が当接する部位に同波形プレート３のボルト孔３３と芯が一致する配置にボルト孔１３が設けられている。妻当部１１の上端には、波形プレート３の山の部分３２の内側へ嵌まるように屈曲された縁部１２が設けられている（請求項２に記載した発明）。縁部１２は波形プレート３の山の部分３２の端部３０を下側から支持するに適した幅で形成され、山の部分３２に上方から比較的大きな荷重がかかっても、妻当部１１の上端が山の部分３２の端部３０の下面から外れることはなく、山の部分３２の端部３０は安定的に平坦に支持される。
【００１３】
上記波形プレート３のボルト止め手段として、クリップボルト５が好適に使用される。
クリップボルト５は、小梁２の上側フランジ２０へ引っ掛けて取付けることが可能な略コ字形のクリップ部５０と、該クリップ部５０の上面に溶接等の手段で垂直に取付けられたボルト部５１とから成る（図２、図４）。
【００１４】
クリップボルト５は、クリップ部５０を小梁２の上側フランジ２０の縁に引っ掛けてボルト部５１が上向きとなる配置で設置されるが、その設置状態を安定化するため幅止め板６が使用される（請求項２に記載した発明）。
前記クリップ部５０と妻当て板１の水平面部１０との間に、クリップボルト５のボルト部５１に通す孔６０を有する幅止め板６が挟み込まれる。図１のように両端部に２個のボルト孔６０を設けた幅止め板６は、その一方のボルト孔６０に、小梁２の上側フランジ２０の一側縁へ取付けたクリップボルト５のボルト部５１が通され、もう一方のボルト孔６０には、同上側フランジ２０の反対側縁に取付けたクリップボルト５のボルト部５１が通される。かくして両側のクリップボルト５、５は１個の幅止め板６できっちり拘束される（図４）。各クリップボルト５は更にボルト部５１を前記妻当て板１のボルト孔１３及び前記波形プレート３の端部３０のボルト孔３３へ共通に通しナット５２により小梁２の上側フランジ２０上に締め付け固定されている。
【００１５】
即ち、クリップボルト５は、図４に示したように、小梁２の上側フランジ２０の縁に、略コ字形状のクリップ部５０の湾曲した内側を向かい合わせて対に取り付けられ、それぞれが幅止め板６により引き寄せられて強固に拘束され、ズレたり外れたりすることのない構成とされている。
なお、波形プレート３のボルト止めが一方で終了し、２つのクリップボルト５、５が使用されない場所では、図５に示したように、幅止め板６の長手方向の一端を小梁２の縁に引っ掛けるコ字形状部６１に形成した幅止め板６´が好適に使用される。ただし、図６に示したように、コ字形状部６１はＵ字形に形成した構成としてもよい。
【００１６】
次に、図２の実施例は、前記妻当板１の水平面部１０の下面に、図２乃至４に示したように、前記クリップボルト５のクリップ部５０及び幅止め板６０が使用されることを考慮して、その場所に、両者の幅寸及び合計厚さより少し大きい幅及び深さの凹み１４を各ボルト孔１３の部位に設けている。したがって、図３、図４に示したように前記クリップボルト５及び幅止め板６を使用しても、妻当て板１の水平面部１０の下面は全面が小梁２のフランジ２０に密着した安定状態に取り付けることができ、水平面部１０の下端と小梁２のフランジ２０との間に生じうる微小な隙間も遮蔽し、音漏れを完全に防止することができる（請求項２に記載した発明）。
【００１７】
上記の妻当て板１は、専ら軽量化のために薄鋼板が使用され、水平面部１０が波形に折り曲げられて前記凹み１４が設けられている。
図７及び８に示した実施例の場合、妻当板１は曲げ加工により形成され、小梁２の上側フランジ２０の上面に置かれる当接部１５と、前記当接部１５の下縁からクリップボルト５のクリップ部５０及び幅止め板６の合計厚さ相当だけ浮上した位置に設けられた水平面部１０と、波形プレート３のうち小梁上面に対して立ち上がる山の部分の垂直横断面形状と略同形、同大で前記水平面部１０から略垂直に立ち上がる妻当部１１とから成る。前記当接部１５にはクリップボルト５のクリップ部５０及び幅止め板６の幅寸及び合計厚さより少し大きい幅及び深さの切り欠き１６が設けられている。前記水平面部１０には波形プレート３の谷の部分３１が当接する部位に同波形プレート３のボルト孔３３と芯が一致する配置にボルト孔１３が設けられている（請求項３に記載した発明）。ただし、曲げ加工に限定されるものではなく、例えば溶接等の方法でもよい。
【００１８】
【本発明が奏する効果】
この発明に係る高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造を実施することにより、小梁の上に載置された波形プレートのうち、小梁の上側フランジから立ち上がる山の部分とフランジとの間に形成される開口は妻当て板によりきっちり閉塞される。したがって、歩廊材としての波形プレートを小梁の上側フランジ上へ取付けた際に発生する開口部分の音漏れを防ぐ。とともに、作業員が点検、補修のため歩廊材の上を歩行する際にも、波形プレートの端部が作業員の足に踏みつけられても山の部分が撓んで端部同士に段差が発生することがなく、つま先が引っかかってよろけたり転倒する危険が防止される作用効果を奏する。
【図面の簡単な説明】
【図１】 取付け構造を説明する分解斜視図である。
【図２】 取付け構造を説明する分解斜視図である。
【図３】 取付け構造を説明する斜視図である。
【図４】 波形の筋の長手方向の断面図である。
【図５】 一端を略コ字形状に形成した幅止め板の斜視図である。
【図６】 一端を略Ｕ字形状に形成した幅止め板の斜視図である。
【図７】 取付け構造を説明する分解斜視図である。
【図８】 波形の筋の長手方向の断面図である。
【図９】 引例の断面図である。
【符号の説明】
１ 妻当板
２ 小梁
３ 波形プレート
４ 隙間
５ クリップボルト
６ 幅止め板
６´ 幅止め板
１０ 水平面部
１１ 妻当部
１２ 縁部
１３ ボルト孔
１４ 凹み
１５ 当接部
１６ 切り欠き
２０ 上側フランジ
３０ 端部
３１ 谷の部分
３２ 山の部分
３３ ボルト孔
３４ 開口
５０ クリップ部
５１ ボルト部
５２ ナット
６０ ボルト孔
６１ コ字形状部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to maintenance of scenery on the underside of the underside of an elevated road, an elevated railway, etc. (hereinafter collectively referred to as an elevated road), noise caused by automobiles traveling on the lower road and the upper elevated road, The present invention relates to a structure for mounting a walkway material for a sound absorption system for a scaffold that reduces reflected sound.
[0002]
[Prior art]
Conventionally, while maintaining the scenery on the underside of the underpass of the elevated road and reducing noise and reflected sound caused by cars traveling on the lower road and the upper elevated road, a suspension scaffold for the walkway for inspection and repair is provided. A sound-absorbing system that also serves as a scaffold is proposed in, for example, the specification and drawings of Japanese Patent Application No. 8-303136 filed earlier by the present applicant.
[0003]
As shown in FIG. 9, the corridor material in the system has a corrugated plate 3 as a corridor material placed on the upper surface 20 of the upper flange of the beam 2 suspended on the back side of the underside of the beam, and the length of the corrugated streak The end portions 30 of the corrugated plates 3 adjacent to each other are generally arranged with a gap 4 of about 10 mm so as to absorb construction errors or thermal expansion and contraction, and the intersection with the small beam 2 is bolted. Has been. Securing the gap 4 is considered essential.
[0004]
[Problems to be solved by the present invention]
In the corrugated plate 3 as the walkway material, a trough portion 31 that abuts on the upper surface 20 of the small beam 2 is bolted to the small beam 2 via the clip bolt 5. The shape of the raised mountain portion 32 that is lifted from the upper surface 20 of the beam 2 forms the opening 34 as it is, and communicates with the gap 4.
[0005]
Therefore, noise coming from above or below the corrugated plate 3 leaks in the mutual direction through the gap 4 and the opening 34 as shown by arrows N or N 'in FIG. It is not preferable from the viewpoint of the effect of noise reduction.
When the worker walks on the corridor for inspection and repair, if the worker's feet step on the end 30 facing the gap 4, the corrugated plate 3 is a thin plate, so the weight of the worker There is a possibility that the safety on walking may be hindered, such as bending downward due to G, causing a step H with respect to the adjacent end portion 30, and the operator's toe being caught.
[0006]
The object of the present invention is to prevent sound leakage of the opening portion that occurs when the corrugated plate is mounted on the upper flange of the beam, and also, when an operator walks on the corrugated plate, he / she crawls and falls The present invention is to provide a structure for mounting a walkway material for a sound absorption system for both a scaffolding and an underside of a girder such as an elevated road that has been improved to a configuration without danger.
[0007]
[Means for Solving the Problems]
As a means for solving the above-mentioned problem, a structure for attaching a walkway material for a sound-absorbing system for scaffolding on the back side of the underside of an underpass such as an elevated road according to the invention described in claim 1,
A corrugated plate as a corridor along with a landscape material and a sound absorbing material is placed on the small beam suspended on the underside of the underside of an elevated road, etc., and placed adjacent to the longitudinal direction of the corrugated streaks. The corrugated plates are arranged with a slight gap between them, and the corrugated plate is bolted at the intersection with the beam.
The end of the corrugated plate is bolted to the beam with a wife plate shaped to close the opening in the crest;
The tread plate is substantially the same shape and size as the horizontal plane portion placed on the flange upper surface of the beam and the vertical cross-sectional shape of the peak portion of the corrugated plate that rises with respect to the beam upper surface. A bolt hole is provided in the arrangement where the corrugated plate bolt hole and the core coincide with the portion where the corrugated plate valley portion abuts on the horizontal surface portion.
A clip bolt comprising a substantially U-shaped clip portion that can be hooked and attached to the upper flange of the beam and a bolt portion that is vertically attached to the upper surface of the clip portion is installed on the upper flange of the beam. The bolt hole of the abutting plate and the bolt hole at the end of the corrugated plate are commonly passed through the bolt part and fixed with a nut.
[0008]
The walkway material mounting structure of the sound-absorbing system also used as a scaffold on the underside of the underside of the underpass such as an elevated road according to the invention according to claim 2,
The clip bolt described in claim 1 is installed on the upper flange of the small beam, restrained by a width stop plate having a hole that passes through the bolt portion.
On the lower surface of the horizontal surface portion of the abutment plate, a recess having a width and a depth slightly larger than the width and total thickness of the clip portion and the width stop plate of the clip bolt is provided in each bolt hole portion,
The upper end of the wife abutment portion of the wife abutment plate is characterized in that an edge that is bent so as to fit inside the peak portion of the corrugated plate is provided.
[0009]
The walkway material mounting structure of the sound-absorbing system for scaffolding on the underside of the underside of the underpass such as an elevated road according to the invention described in claim 3 is:
A corrugated plate as a corridor along with a landscape material and a sound absorbing material is placed on the small beam suspended on the underside of the underside of an elevated road, etc., and placed adjacent to the longitudinal direction of the corrugated streaks. The corrugated plates are arranged with a slight gap between them, and the corrugated plate is bolted at the intersection with the beam.
The end of the corrugated plate is bolted to the beam with a wife plate shaped to close the opening in the crest;
The abutment plate is provided at a position where the contact portion is placed on the upper surface of the flange of the small beam, and a position corresponding to the total thickness of the clip portion of the clip bolt and the width stop plate described later from the lower edge of the contact portion. The horizontal plane part and a vertical cross-sectional shape of the peak portion of the corrugated plate that rises with respect to the upper surface of the beam, the same size, the same size, and a wife abutment part that rises substantially vertically from the horizontal plane part. The bolt hole is provided in the arrangement where the corrugated plate bolt hole and the core coincide with the portion where the corrugated plate valley portion abuts,
A clip bolt consisting of a substantially U-shaped clip portion that can be hooked and attached to the upper flange of the beam and a bolt portion that is vertically attached to the upper surface of the clip portion is restrained by a width stop plate to restrain the beam. It is installed on the upper flange, and the bolt hole of the abutting plate and the bolt hole of the corrugated plate end are passed through the bolt part in common and are fastened and fixed with a nut.
[0010]
Embodiments and Examples of the Invention
The walkway material mounting structure of the sound-absorbing and sound absorbing system for the underside of the underpass of an elevated road or the like according to the invention described in claim 1 is suspended on the underside of the underside of an elevated road or the like as shown in FIG. A corrugated plate 3 as a walkway material is placed on the upper surface of the upper flange 20 of the lowered beam 2, and the end portions 30 of the corrugated plates 3 adjacent to each other in the longitudinal direction of the corrugated streaks are arranged with a slight gap 4 therebetween. The corrugated plate 3 is preferably implemented as a walkway material mounting structure of a sound absorbing system for both scaffolding and use on the back side of the underside of an underpass such as an elevated road where the intersection with the beam 2 is bolted. As shown in FIG. 1, it is characterized in that it is bolted to the beam 2 via the end plate 1 having a shape for closing the opening of the mountain portion 32.
[0011]
As is clear from FIG. 1, the end plate 1 has a horizontal plane portion 10 placed on the upper surface of the flange 20 of the beam 2 and a vertical portion 32 of the corrugated plate 3 that rises with respect to the upper surface 20 of the beam 2. It is a processed product of a thin steel plate having a thickness of about 0.6 mm, which is composed of a substantially trapezoidal footrest 11 having substantially the same shape and the same size as the transverse cross section and rising substantially vertically from the horizontal surface portion 10. The wife abutment portion 11 may be configured to rise from the horizontal plane portion 10 and close the opening of the peak portion 32 of the corrugated plate 3, and is not limited to the vertical rise as illustrated, but may be an inclined structure.
[0012]
In the horizontal plane portion 10, bolt holes 13 are provided at positions where the valley portions 31 of the corrugated plate 3 come into contact with the bolt holes 33 of the corrugated plate 3 so that their cores coincide with each other. An edge 12 that is bent so as to fit inside the peak portion 32 of the corrugated plate 3 is provided at the upper end of the wife abutment portion 11 (the invention according to claim 2). The edge portion 12 is formed with a width suitable for supporting the end portion 30 of the crest portion 32 of the corrugated plate 3 from below. Even if a relatively large load is applied to the crest portion 32 from above, the end portion 11 The upper end of the mountain portion 32 does not deviate from the lower surface of the end portion 30 of the mountain portion 32, and the end portion 30 of the mountain portion 32 is stably and flatly supported.
[0013]
A clip bolt 5 is preferably used as a bolting means for the corrugated plate 3.
The clip bolt 5 includes a substantially U-shaped clip portion 50 that can be hooked onto the upper flange 20 of the small beam 2, and a bolt portion 51 that is vertically attached to the upper surface of the clip portion 50 by means such as welding. (FIGS. 2 and 4).
[0014]
The clip bolt 5 is installed in such an arrangement that the clip portion 50 is hooked on the edge of the upper flange 20 of the small beam 2 so that the bolt portion 51 faces upward, but the width stop plate 6 is used to stabilize the installation state. (Invention described in claim 2).
A width stop plate 6 having a hole 60 that passes through the bolt portion 51 of the clip bolt 5 is sandwiched between the clip portion 50 and the horizontal surface portion 10 of the wife pad 1. As shown in FIG. 1, the width stop plate 6 having two bolt holes 60 at both ends is a bolt of the clip bolt 5 attached to one side edge of the upper flange 20 of the small beam 2 in one bolt hole 60. The bolt portion 51 of the clip bolt 5 attached to the opposite side edge of the upper flange 20 is passed through the other bolt hole 60. Thus, the clip bolts 5 and 5 on both sides are tightly restrained by the single width stop plate 6 (FIG. 4). Each clip bolt 5 further passes a bolt portion 51 in common to the bolt hole 13 of the abutting plate 1 and the bolt hole 33 of the end portion 30 of the corrugated plate 3 and is fastened and fixed on the upper flange 20 of the small beam 2 by a nut 52. Has been.
[0015]
That is, as shown in FIG. 4, the clip bolts 5 are attached to the edge of the upper flange 20 of the beam 2 so that the curved inner side of the substantially U-shaped clip part 50 faces each other in pairs. The structure is such that it is attracted by the stop plate 6 and firmly restrained, and does not slip or come off.
In addition, in the place where the bolting of the corrugated plate 3 ends on one side and the two clip bolts 5 and 5 are not used, one end in the longitudinal direction of the width stopper plate 6 is connected to the edge of the small beam 2 as shown in FIG. A width stop plate 6 ′ formed on the U-shaped portion 61 that is hooked onto the rim is preferably used. However, as shown in FIG. 6, the U-shaped portion 61 may be formed in a U shape.
[0016]
Next, in the embodiment of FIG. 2, the clip portion 50 and the width stop plate 60 of the clip bolt 5 are used on the lower surface of the horizontal surface portion 10 of the abutment plate 1 as shown in FIGS. 2 to 4. In consideration of this, a recess 14 having a width and a depth slightly larger than the width dimension and the total thickness of the both is provided at the site of each bolt hole 13. Therefore, even when the clip bolt 5 and the width stop plate 6 are used as shown in FIGS. 3 and 4, the entire bottom surface of the horizontal surface portion 10 of the wife pad 1 is in close contact with the flange 20 of the beam 2. It can be attached to a state, and a minute gap that can be generated between the lower end of the horizontal plane portion 10 and the flange 20 of the beam 2 can also be shielded, and sound leakage can be completely prevented (invention according to claim 2). ).
[0017]
A thin steel plate is used exclusively for the above-mentioned wife pad 1 for weight reduction, and the dent 14 is provided by bending the horizontal surface portion 10 into a corrugated shape.
In the case of the embodiment shown in FIGS. 7 and 8, the abutment plate 1 is formed by bending, and a contact part 15 placed on the upper surface of the upper flange 20 of the beam 2 and a lower edge of the contact part 15 Vertical cross-sectional shape of a horizontal surface portion 10 provided at a position that is levitated by the total thickness of the clip portion 50 and the width stop plate 6 of the clip bolt 5 and a peak portion of the corrugated plate 3 that rises with respect to the upper surface of the beam. And a wife abutment portion 11 that is substantially the same shape and size and rises substantially vertically from the horizontal plane portion 10. The abutment portion 15 is provided with a notch 16 having a width and depth slightly larger than the width dimension and the total thickness of the clip portion 50 of the clip bolt 5 and the width stop plate 6. The horizontal plane portion 10 is provided with bolt holes 13 at positions where the valley portions 31 of the corrugated plate 3 come into contact with the bolt holes 33 of the corrugated plate 3 so that the cores coincide with each other (the invention according to claim 3). ). However, the method is not limited to bending, and may be a method such as welding.
[0018]
[Effects of the present invention]
Mountains that rise from the upper flange of the beam among the corrugated plates placed on the beam, by implementing the structure for mounting the walkway material of the sound absorption system for both scaffolding and underside of the underside of the underpass according to the present invention The opening formed between this portion and the flange is tightly closed by the wife pad. Therefore, sound leakage of the opening portion that occurs when the corrugated plate as the walkway material is mounted on the upper flange of the small beam is prevented. At the same time, even when the worker walks on the walkway material for inspection and repair, even if the end of the corrugated plate is stepped on the operator's foot, the mountain portion bends and a step occurs between the ends. There is no effect, and there is an effect that prevents the risk of the tiptoe getting caught and falling.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view illustrating a mounting structure.
FIG. 2 is an exploded perspective view illustrating a mounting structure.
FIG. 3 is a perspective view illustrating an attachment structure.
FIG. 4 is a longitudinal sectional view of a corrugated streak.
FIG. 5 is a perspective view of a width stop plate having one end formed in a substantially U shape.
FIG. 6 is a perspective view of a width stop plate having one end formed in a substantially U shape.
FIG. 7 is an exploded perspective view illustrating a mounting structure.
FIG. 8 is a longitudinal sectional view of a corrugated streak.
FIG. 9 is a sectional view of a reference.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wife contact plate 2 Beam 3 Corrugated plate 4 Crevice 5 Clip bolt 6 Width stop plate 6 'Width stop plate 10 Horizontal surface part 11 Wife contact part 12 Edge part 13 Bolt hole 14 Recess 15 Contact part 16 Notch 20 Upper flange 30 End portion 31 Valley portion 32 Mountain portion 33 Bolt hole 34 Opening 50 Clip portion 51 Bolt portion 52 Nut 60 Bolt hole 61 U-shaped portion

Claims (3)

高架道路等の桁下裏面側に吊り下げた小梁に景観材、吸音材と共に歩廊材としての波形プレートが小梁の上側フランジ上に載置され、波形の筋の長手方向に隣り合う波形プレートの端部同士は若干の隙間をあけて並べられ、波形プレートは小梁との交差部分がボルト止めされている高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造において、
前記波形プレートの端部は、その山の部分の開口を閉鎖する形状の妻当板と共に小梁へボルト止めされていること、
前記妻当板は、小梁のフランジ上面に置かれる水平面部と、波形プレートのうち小梁上面に対して立ち上がる山の部分の垂直横断面形状と略同形、同大で前記水平面部から略垂直に立ち上がる妻当部とから成り、前記水平面部には波形プレートの谷の部分が当接する部位に同波形プレートのボルト孔と芯が一致する配置にボルト孔が設けられていること、
小梁の上側フランジへ引っ掛けて取付けることが可能な略コ字形のクリップ部と、該クリップ部の上面に垂直に取付けられたボルト部とから成るクリップボルトを小梁の上側フランジ上に設置し、前記妻当板のボルト孔及び前記波形プレート端部のボルト孔を前記ボルト部へ共通に通しナットで締付け固定されていることを特徴とする、高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造。A corrugated plate as a corridor along with a landscape material and a sound absorbing material is placed on the small beam suspended on the underside of the underside of an elevated road, etc., and placed adjacent to the longitudinal direction of the corrugated streaks. The corrugated plates are arranged with a slight gap between them, and the corrugated plate is bolted at the intersection with the beam.
The end of the corrugated plate is bolted to the beam with a wife plate shaped to close the opening in the crest;
The tread plate is substantially the same shape and size as the horizontal plane portion placed on the flange upper surface of the beam and the vertical cross-sectional shape of the peak portion of the corrugated plate that rises with respect to the beam upper surface. A bolt hole is provided in the arrangement where the corrugated plate bolt hole and the core coincide with the portion where the corrugated plate valley portion abuts on the horizontal surface portion.
A clip bolt comprising a substantially U-shaped clip portion that can be hooked and attached to the upper flange of the beam and a bolt portion that is vertically attached to the upper surface of the clip portion is installed on the upper flange of the beam. A sound absorbing system for both a scaffolding and a backside of an underpass such as an elevated road, wherein the bolt hole of the abutment plate and the bolt hole at the end of the corrugated plate are passed through the bolt part in common and fastened with a nut. Walkway material mounting structure. クリップボルトは、そのボルト部に通す孔を有する幅止め板により拘束され小梁の上側フランジ上に設置されていること、
妻当板の水平面部の下面には、前記クリップボルトのクリップ部及び幅止め板の幅寸及び合計厚さより少し大きい幅及び深さの凹みが各ボルト孔の部位に設けられていること、
妻当板の妻当部の上端には、波形プレートの山の部分の内側へ嵌まるように屈曲された縁部が設けられていること、をそれぞれ特徴とする請求項１に記載した高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造。The clip bolt is restrained by a width stop plate having a hole that passes through the bolt part and is installed on the upper flange of the beam.
On the lower surface of the horizontal surface portion of the abutment plate, a recess having a width and a depth slightly larger than the width and total thickness of the clip portion and the width stop plate of the clip bolt is provided in each bolt hole portion,
The elevated road according to claim 1, wherein an edge that is bent so as to fit inside a peak portion of the corrugated plate is provided at an upper end of the wife abutment portion of the wife abutment plate. A structure for mounting a walkway material for a sound absorption system that also serves as a scaffolding on the back side of the underside of a girder. 高架道路等の桁下裏面側に吊り下げた小梁に景観材、吸音材と共に歩廊材としての波形プレートが小梁の上側フランジ上に載置され、波形の筋の長手方向に隣り合う波形プレートの端部同士は若干の隙間をあけて並べられ、波形プレートは小梁との交差部分がボルト止めされている高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造において、
前記波形プレートの端部は、その山の部分の開口を閉鎖する形状の妻当板と共に小梁へボルト止めされていること、
前記妻当板は、小梁のフランジ上面に置かれる当接部と、前記当接部の下縁から後述のクリップボルトのクリップ部及び幅止め板の合計厚さ相当だけ浮上した位置に設けられた水平面部と、波形プレートのうち小梁上面に対して立ち上がる山の部分の垂直横断面形状と略同形、同大で前記水平面部から略垂直に立ち上がる妻当部とから成り、前記水平面部には波形プレートの谷の部分が当接する部位に同波形プレートのボルト孔と芯が一致する配置にボルト孔が設けられていること、
小梁の上側フランジへ引っ掛けて取付けることが可能な略コ字形のクリップ部と、該クリップ部の上面に垂直に取付けられたボルト部とから成るクリップボルトを幅止め板により拘束して小梁の上側フランジ上に設置し、前記妻当板のボルト孔及び前記波形プレート端部のボルト孔を前記ボルト部へ共通に通しナットで締付け固定されていることを特徴とする、高架道路等の桁下裏面側の足場兼用吸音システムの歩廊材取付け構造。A corrugated plate as a corridor along with a landscape material and a sound absorbing material is placed on the small beam suspended on the underside of the underside of an elevated road, etc., and placed adjacent to the longitudinal direction of the corrugated streaks. The corrugated plates are arranged with a slight gap between them, and the corrugated plate is bolted at the intersection with the beam.
The end of the corrugated plate is bolted to the beam with a wife plate shaped to close the opening in the crest;
The abutment plate is provided at a position where the contact portion is placed on the upper surface of the flange of the small beam, and a position corresponding to the total thickness of the clip portion of the clip bolt and the width stop plate described later from the lower edge of the contact portion. The horizontal plane part and a vertical cross-sectional shape of the peak portion of the corrugated plate that rises with respect to the upper surface of the beam, the same size, the same size, and a wife abutment part that rises substantially vertically from the horizontal plane part. The bolt hole is provided in the arrangement where the corrugated plate bolt hole and the core coincide with the portion where the corrugated plate valley portion abuts,
A clip bolt consisting of a substantially U-shaped clip portion that can be hooked and attached to the upper flange of the beam and a bolt portion that is vertically attached to the upper surface of the clip portion is restrained by a width stop plate to restrain the beam. It is installed on the upper flange, and the bolt hole of the abutment plate and the bolt hole of the corrugated plate end are passed through the bolt part in common and are fastened and fixed with a nut. Walkway material mounting structure for sound absorption system for scaffolding on the back side.
JP04075598A 1998-02-23 1998-02-23 Attaching structure for walkway material of sound absorption system for both footing and underside of underside of elevated road Expired - Fee Related JP3844394B2 (en)

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