JP2010168780A - Inspection path - Google Patents

Inspection path Download PDF

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Publication number
JP2010168780A
JP2010168780A JP2009011343A JP2009011343A JP2010168780A JP 2010168780 A JP2010168780 A JP 2010168780A JP 2009011343 A JP2009011343 A JP 2009011343A JP 2009011343 A JP2009011343 A JP 2009011343A JP 2010168780 A JP2010168780 A JP 2010168780A
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reinforced resin
fiber
fiber reinforced
column
trunk edge
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JP5029972B2 (en
Inventor
Keigo Kubo
圭吾 久保
Kenji Nagami
研二 永見
Takuya Aoki
青木卓也
Kenji Nishida
西田賢二
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MIYAJI IRON WORKS CO Ltd
AGC Matex Co Ltd
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MIYAJI IRON WORKS CO Ltd
AGC Matex Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an inspection path which is formed of a fiber-reinforced resin and does not have a tendency to be damaged around rivet holes at a mounting section and through-holes in a furring strip and a pole even if an external force is concentrated to the rivet tightened section of the pole and a coping which constitute a handrail and a stopper fixed section of the pole and a furring strip mounting section which constitute the handrail. <P>SOLUTION: A reinforcement 3 manufactured using a pseudo-isotropic fiber-reinforced resin is interposed at the mounting sections for the pole 21 and coping 22 which are manufactured using a draw-formed fiber-reinforced resin having the main fibers the directions of which are aligned with each other. A stopper larger than the inner diameter of the through-hole of the pole 21 is attached to the furring strip at the mounting sections for the pole 21 and the furring strip, and the reinforcement 3 manufactured using the pseudo-isotropic fiber-reinforced resin is interposed between it and the pole 21 of the stopper. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、検査路の構造に関するものである。
ここに、検査路とは橋梁において、その上からは検査ができない、下面などの状態を検査のための簡易な通路のことである。
The present invention relates to the structure of an inspection path.
Here, the inspection path is a simple path for inspecting the state of the lower surface of the bridge that cannot be inspected from above.

従来の検査路として、実用新案文献１に示すように、繊維強化樹脂で形成した検査路の構造は知られている。
前記したような従来の検査路においても、その繊維強化樹脂製の手摺支柱も笠木も、連続生産が容易な、繊維に方向性のある引抜成形によって製作したものを使用している。
その引抜成形で製作した繊維強化樹脂の材料は、補強繊維の直角方向の耐力及び弾性率が小さいことが知られている。
また、繊維強化樹脂製の材料は、一般的な検査路に使用されている鋼材に比べ、弾性係数が低いために、変形しやすいという特性を備えている。 As a conventional inspection path, as shown in Utility Model Document 1, the structure of an inspection path formed of a fiber reinforced resin is known.
Also in the conventional inspection path as described above, the fiber reinforced resin handrail post and the headboard are made by pultrusion molding that is easy to continuously produce and has directionality to the fiber.
It is known that the fiber reinforced resin material produced by the pultrusion molding has a small proof stress and elastic modulus in the perpendicular direction of the reinforcing fiber.
Moreover, since the material made from fiber reinforced resin has a low elastic modulus compared with the steel material used for the general inspection path, it has the characteristic of being easy to deform | transform.

登録実用新案第３１２８９４７号公報Registered Utility Model No. 3128947

前記した従来の検査路において、支柱と笠木の取り付けについて、次のような問題点がある。
＜１＞ 検査路の手摺には使用者が、笠木に安全帯をかけて使用することも想定される。その場合に、使用者の作業行動によっては、使用者が手摺に寄りかかる以外に、安全帯が引っ張られることにより、笠木と支柱上端との取り付け部に衝撃的な大きな力が作用することがある。
＜２＞ その場合に、従来の笠木と支柱上端の取り付けは、繊維強化樹脂のロッドを用いて、笠木と支柱を貫通する構造で定着しているが、衝撃的な力に対して取り付け部が抵抗することは困難であるため、笠木も破損する可能性がある。
＜３＞ 笠木や支柱に使用されている引抜成形繊維強化樹脂は、主たる補強繊維の方向性があるため、取り付け部のロッドやボルト、リベットの孔の周囲に亀裂が生じやすく、作用する力の方向に強度が不足するためである。
＜４＞ 取り付け部の耐力を向上させるために、笠木の断面を大きくしたり、各部材の補強繊維の追加を行うことも考えられるが、不経済である。
＜５＞ 上記の問題とは別に、胴縁と支柱との取り付け構造について次のような問題がある。
＜６＞ 検査路の使用者が、笠木ではなく、中段の胴縁に安全帯をかけて使用することも想定される。その状態では、使用者の作業行動によっては、使用者が手摺に寄りかかる以外に、安全帯が引っ張られることにより、端部の胴縁と支柱の取り付け部に衝撃的な大きな力が作用することがある。
＜７＞ ところが従来の構造では胴縁は支柱を貫通させており、繊維強化樹脂製の胴縁は変形し易いため、大きな荷重が加わると胴縁のたわみが大きくなり、胴縁が支柱から抜け出して破断する可能性がある。
＜８＞ このような問題を改善するためには、支柱からの胴縁の抜け出し防止のため、支柱の貫通孔の内径より大きいストッパを胴縁に取り付けることが考えられる。しかし支柱に使用されている引抜成形ＦＲＰは主たる補強繊維の方向性がある。
＜９＞ そのために、胴縁と支柱と取り付け部において、ストッパが支柱に当たると、支柱には補強繊維方向と直角方向にも大きな力が作用することとなり、胴縁の定着部が損傷する可能性がある。
In the above-described conventional inspection path, there are the following problems with respect to the attachment of the column and the headboard.
<1> It is also assumed that the user uses a safety belt on the coping for the handrail on the inspection road. In that case, depending on the user's work behavior, a shocking large force may act on the attachment portion between the headboard and the upper end of the column, by pulling the safety belt, in addition to the user leaning on the handrail.
<2> In that case, the conventional headboard and the upper end of the support are fixed by using a fiber reinforced resin rod to penetrate the headboard and the support. Because it is difficult to resist, the coping can also be damaged.
<3> The pultruded fiber reinforced resin used for the headboards and struts has the direction of the main reinforcing fiber, so cracks are likely to occur around the rods, bolts, and rivet holes in the mounting section, and the acting force This is because the strength is insufficient in the direction.
<4> In order to improve the yield strength of the attachment portion, it is possible to enlarge the cross section of the headboard or add reinforcing fibers for each member, but this is uneconomical.
<5> Apart from the above problem, there is the following problem regarding the attachment structure between the trunk edge and the column.
<6> It is also assumed that the user of the inspection road uses a safety band on the trunk edge of the middle stage instead of the coping. In that state, depending on the user's work behavior, in addition to the user leaning on the handrail, a shocking large force may act on the trunk edge of the end and the attachment part of the support column by pulling the safety belt. is there.
<7> However, in the conventional structure, the trunk edge penetrates the column, and the fiber reinforced resin trunk edge is easily deformed. Therefore, when a large load is applied, the deflection of the trunk edge increases, and the trunk edge comes out of the pillar. May break.
<8> In order to improve such a problem, it is conceivable to attach a stopper larger than the inner diameter of the through hole of the column to the barrel edge in order to prevent the barrel edge from coming out of the column. However, the pultruded FRP used for the columns has the direction of the main reinforcing fiber.
<9> Therefore, when the stopper hits the support in the trunk edge, the support column, and the attachment part, a large force acts on the support in the direction perpendicular to the reinforcing fiber direction, and the fixing part of the trunk edge may be damaged. There is.

上記のような課題を解決するために、本発明の検査路は、橋梁の下面などの状態を検査するための簡易な通路の構造であって、検査路は、歩廊を構成する主桁と手摺とより構成し、手摺は、主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した支柱と、主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した笠木とによって構成し、支柱と笠木との取り付け部は、擬似等方性の繊維強化樹脂で製造した補強板を介してリベット等で締結して構成したことを特徴としたものである。
また本発明の検査路は、橋梁の下面などの状態を検査するための簡易な通路の構造であって、検査路は、歩廊を構成する主桁と手摺と胴縁で構成し、手摺は、主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した支柱と、主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した胴縁とによって構成し、支柱と胴縁との取り付け部は、支柱の貫通孔の内径よりも外形の大きいストッパを胴縁に取り付け、ストッパの支柱との間には、擬似等方性の繊維強化樹脂で製造した補強板を介在させて構成したことを特徴としたものである。
In order to solve the above-described problems, the inspection road of the present invention has a simple passage structure for inspecting the state of the lower surface of a bridge, etc., and the inspection road includes a main girder and a handrail that constitute a walkway. The handrail is composed of struts made of pultruded fiber reinforced resin with the same direction of the main fibers and headboards made of pultruded fiber reinforced resin with the same direction of the main fibers. The attachment portion is constructed by fastening with a rivet or the like via a reinforcing plate made of pseudo-isotropic fiber reinforced resin.
Further, the inspection road of the present invention is a simple passage structure for inspecting the state of the lower surface of the bridge, etc., and the inspection road is composed of a main girder, a handrail, and a trunk edge constituting the walkway, It is composed of a post made of pultruded fiber reinforced resin with the same direction of the main fiber and a trunk edge made of pultruded fiber reinforced resin with the same direction of the main fiber. A feature is that a stopper having an outer shape larger than the inner diameter of the through hole of the support is attached to the trunk edge, and a reinforcing plate made of a pseudo-isotropic fiber reinforced resin is interposed between the stopper support and the support post. It is a thing.

本発明の検査路は以上説明したようになるから次のような効果を得ることができる。
＜１＞ 笠木と支柱の取り付け部において、擬似等方性を有する補強板を介在させてリベットなどで締結している。この補強板の介在によって、検査路使用者の作業時に使用者が手摺に寄りかかる以外に、安全帯が引っ張られることにより笠木の取り付け部に衝撃的な力が作用してもリベット孔の周囲が破損することを防止し、耐力が向上する。
＜２＞ 支柱と胴縁の取り付け部においても、擬似等方性の補強板を介して胴縁のストッパが支柱に衝突するから、ストッパから支柱への衝撃的な力が分散され、引抜成形繊維強化樹脂である支柱の補強繊維方向と直角方向に作用する力が小さくなる。
＜３＞ そのため、胴縁に衝撃的な力の作用による大きな変形が生じて、胴縁が支柱から抜け出そうとしても、そのストッパが補強板を介して支柱当たるので、支柱の貫通孔周辺が損傷することがない。
＜４＞ その結果、両端の支柱と胴縁の取り付け部の耐力が向上し、胴縁の支柱からの抜け出しが防止できる。すなわち、検査路使用者の作業時に使用者が手摺に寄りかかる以外に、安全帯が引っ張られることにより胴縁の取り付け部に作用するに衝撃的な大きな力に対して、胴縁と支柱の取り付け部が破損することを確実に防止でき、耐力が向上する。
Since the inspection path of the present invention is as described above, the following effects can be obtained.
<1> Fastening with rivets or the like with a reinforcing plate having pseudo-isotropic properties in the attachment portion between the headboard and the support. In addition to the user leaning on the handrail during the work of the user of the inspection road due to the reinforcement plate, the surrounding area of the rivet hole is damaged even if an impact force is applied to the mounting portion of the headboard by pulling the safety belt. It is possible to prevent this, and the proof stress is improved.
<2> Since the stopper on the trunk collides with the column through the quasi-isotropic reinforcement plate also at the attachment part between the column and the trunk edge, the impact force from the stopper to the pillar is dispersed, and the pultruded fiber The force acting in the direction perpendicular to the reinforcing fiber direction of the support columns made of reinforced resin is reduced.
<3> Therefore, even if the barrel edge is deformed greatly by the action of shocking force and the barrel edge tries to come out of the column, the stopper hits the column via the reinforcing plate, so that the periphery of the through hole of the column is damaged. There is nothing to do.
<4> As a result, the proof stress of the support part of both ends and the trunk edge improves, and it can prevent that the trunk edge comes off from the pillar. In other words, in addition to the user leaning on the handrail during the work of the inspection road user, the mounting edge of the trunk edge and the support column against the shocking large force acting on the mounting edge of the trunk edge when the safety belt is pulled Can be reliably prevented from being damaged, and the proof stress is improved.

本発明の検査路の支柱と笠木を取り付ける構造の実施例の説明図。Explanatory drawing of the Example of the structure which attaches the support | pillar and headboard of an inspection path of this invention. 図１の構造のその断面図。FIG. 2 is a cross-sectional view of the structure of FIG. 支柱と笠木を取り付ける他の実施例の説明図。Explanatory drawing of the other Example which attaches a support | pillar and headboard. 支柱と胴縁と取り付ける構造の実施例の説明図。Explanatory drawing of the Example of the structure attached to a support | pillar and a trunk edge. 検査路の全体図。Overall view of the inspection path.

以下図面を参照にしながら本発明の好適な実施の形態を詳細に説明する。   DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

＜１＞本発明の対象。
本発明の対象である検査路とは、前記したように橋梁の下面などの状態を検査のための簡易な通路である。
この検査路の手摺２の支柱２１を、笠木２２に取り付けるための構造について説明する。 <1> Subject of the present invention.
The inspection road that is the subject of the present invention is a simple passage for inspecting the state of the lower surface of the bridge as described above.
A structure for attaching the column 21 of the handrail 2 on the inspection path to the headboard 22 will be described.

＜２＞主要な構成。
本発明の検査路は、歩廊１１を構成する複数本の平行した主桁１と、その主桁１の周囲に取り付ける手摺によって構成する。
主桁１は、複数本を平行して配置し、その主桁１の上に板を敷いて、歩行部である歩廊１１を構成する。
手摺２は支柱２１と笠木２２および胴縁２３によって構成する。
支柱２１は、歩行部の両側に鉛直に配置する矩形断面の部材である。
笠木２２は、これらの複数の支柱２１の上に水平に取り付ける部材である。 <2> Main configuration.
The inspection road of the present invention is constituted by a plurality of parallel main girders 1 constituting the corridor 11 and handrails attached around the main girders 1.
A plurality of main girder 1 are arranged in parallel, and a board is laid on the main girder 1 to constitute a walkway 11 that is a walking part.
The handrail 2 includes a support column 21, a cap 22 and a trunk edge 23.
The support column 21 is a member having a rectangular cross section that is vertically disposed on both sides of the walking portion.
The headboard 22 is a member that is horizontally mounted on the plurality of support columns 21.

＜３＞支柱と笠木の材料。
この支柱２１と笠木２２は、すでに量産され、市販されている、引抜成形によって製造された繊維強化樹脂によって製造する。
この種の、引抜成形によって製造する繊維強化樹脂は、主たる繊維の方向の一致したものである。
主たる繊維の方向が一致している繊維強化樹脂は、前記したように、補強繊維の配置方向に対して直交する方向の耐力が低いことが知られている。 <3> Prop and headstock materials.
This support | pillar 21 and the coping 22 are manufactured with the fiber reinforced resin manufactured by the pultrusion molding already mass-produced and marketed.
This type of fiber reinforced resin produced by pultrusion has the same primary fiber orientation.
As described above, it is known that the fiber reinforced resin in which the directions of the main fibers coincide with each other has low proof stress in the direction orthogonal to the arrangement direction of the reinforcing fibers.

＜４＞補強材。
支柱２１と笠木２２との取り付け部は、両者をリベット等によって締結するが、本願発明の取り付け部では補強材３を介在させてリベット等で締結を行う。
この補強材３は、特に主たる繊維の方向がそろっていない、擬似等方性の繊維強化樹脂で製造したものを使用する。
そのために、補強材３の製造は、ハンドレイアップ成形という製造方法によって行い、繊維の補強方向が一定でないものを採用する。
この補強材３は、１枚の板体、断面Ｌ字状のアングル材、断面Ｃ字状のチャンネル材などを各種の形状のものを利用できる。
１枚の板体は、リベット孔を開口して、リベット等で２部材を締結するガセットプレートとして利用できる。
主たる繊維の方向がそろっていない、擬似等方性の繊維強化樹脂部材は、繊維の方向がそろっている繊維強化樹脂に比較して、リベット等の締結部に外力が集中してもリベット等の孔の周囲が破損しがたい特性を備えている。 <4> Reinforcing material.
The attachment portion between the support column 21 and the headboard 22 is fastened with a rivet or the like, but the attachment portion according to the present invention is fastened with a rivet or the like with the reinforcing material 3 interposed.
The reinforcing material 3 is made of a quasi-isotropic fiber reinforced resin in which the main fibers are not aligned.
For this purpose, the reinforcing material 3 is manufactured by a manufacturing method called hand lay-up molding, in which the reinforcing direction of the fibers is not constant.
The reinforcing member 3 can be made of one plate, an angle member having an L-shaped cross section, a channel member having a C-shaped cross section, and the like having various shapes.
One plate can be used as a gusset plate that opens a rivet hole and fastens two members with a rivet or the like.
The quasi-isotropic fiber reinforced resin member, which does not have the main fiber direction aligned, has a rivet or the like even if external force is concentrated on the fastening part of the rivet, compared to the fiber reinforced resin in which the fiber direction is aligned. The periphery of the hole is difficult to break.

＜５＞支柱と笠木の取り付け。
次に、支柱２１と笠木２２との取り付け構造を説明する。
前記したように、支柱２１も笠木２２も一定方向に繊維補強した引抜成形の部材であり、補強材３は繊維の補強方向が一定でない擬似等方性の部材である。
そしてたとえば図１、２に示すように、支柱２１が角柱であり、笠木２２が断面コ字状のチャンネル材である場合には、まず角柱状の支柱２１の上端の両側に断面Ｌ字状に形成した補強材３をリベット等で締結する。
その上から、笠木２２を嵌合する。
そして笠木２２と補強材３をリベット等によって締結する。
その結果、断面Ｌ字状の補強材３を介して、支柱２１と笠木２２とを一体に締結することができる。
あるいは図３に示すように、角柱状の支柱２１の上に、やはり角柱状の笠木２２を搭載して取り付ける場合には、ガセットプレート状に形成した補強材３を、搭載部の両側に当てる。
そして補強材３の下半分はリベット等によって支柱２１と締結し、補強材３の上半分はリベット等によって笠木２２と締結する。
この結果、プレート状の補強材３を介して、支柱２１と笠木２２を一体に締結することができる。
いずれの場合にも補強材３の取り付けはリベット等とともに接着剤を使用することができる。 <5> Attaching the column and headboard.
Next, the attachment structure of the support | pillar 21 and the headboard 22 is demonstrated.
As described above, both the struts 21 and the headboards 22 are pultruded members in which fibers are reinforced in a certain direction, and the reinforcing member 3 is a quasi-isotropic member in which the direction of fiber reinforcement is not constant.
For example, as shown in FIGS. 1 and 2, when the support column 21 is a rectangular column and the headboard 22 is a channel material having a U-shaped cross section, first, the L-shaped cross section is formed on both sides of the upper end of the prismatic column 21. The formed reinforcing material 3 is fastened with rivets or the like.
The headboard 22 is fitted from above.
The headboard 22 and the reinforcing material 3 are fastened with rivets or the like.
As a result, the support column 21 and the headboard 22 can be fastened together via the reinforcing member 3 having an L-shaped cross section.
Alternatively, as shown in FIG. 3, when mounting a prismatic headboard 22 on a prismatic column 21, the reinforcing material 3 formed in a gusset plate shape is applied to both sides of the mounting portion.
The lower half of the reinforcing material 3 is fastened to the support column 21 by rivets or the like, and the upper half of the reinforcing material 3 is fastened to the headboard 22 by rivets or the like.
As a result, the support column 21 and the headboard 22 can be fastened together via the plate-shaped reinforcing material 3.
In any case, the reinforcing material 3 can be attached using a rivet or an adhesive.

＜６＞補強材の果たす機能。
アングル、あるいはガセットプレートとして形成した補強材３は、擬似等方性の繊維強化樹脂として形成してあり、繊維の方向性の少ない構造の部材である。
この補強材３を介在させるために、リベット等は、補強材３を外面から締め付けることになり、支柱２１や笠木２２の締結に用いたリベット等の孔の周囲に生じる応力を減ずることができる。
そのためにリベット等の締結によってリベット等の孔の周囲に亀裂が入るといった破損が生じることがないことはもちろん、笠木２２や支柱２１に衝撃を含む大きな外力が与えられて、両者の取り付け部に力が集中した場合にも、リベット等の孔の周囲に亀裂が入るといった破損が生じることがない。
また、支柱２１と笠木２２を繊維強化樹脂のロッドで固定した場合は大きな外力に取り付け部が耐えられないのに対し、補強材３を介し、リベット等の締結数により力を分散するように固定できるので、大きい耐力を得ることができる。 <6> Function fulfilled by the reinforcing material.
The reinforcing material 3 formed as an angle or a gusset plate is formed as a quasi-isotropic fiber reinforced resin, and is a member having a structure with less fiber directionality.
Since the reinforcing material 3 is interposed, the rivet or the like tightens the reinforcing material 3 from the outer surface, and the stress generated around the hole of the rivet or the like used for fastening the support column 21 and the headboard 22 can be reduced.
For this reason, the rivet or the like does not cause damage such as a crack around the hole of the rivet or the like, and of course, a large external force including impact is applied to the headboard 22 and the support column 21 and force is applied to the attachment portion of both. Even in the case where the concentration is concentrated, there will be no breakage such as cracking around the hole such as a rivet.
In addition, when the support column 21 and the headboard 22 are fixed with a fiber reinforced resin rod, the attachment part cannot withstand a large external force, but the reinforcing member 3 is used to fix the force by the number of fastenings such as rivets. Since it is possible, a large proof stress can be obtained.

＜７＞支柱と胴縁の取り付け構造。
次に図４によって、支柱２１と胴縁２３との取り付けについて説明する。
前記したように支柱２１は一定方向に繊維補強した引抜成形の部材であり、補強材３は繊維の補強方向が一定でない擬似等方性の部材である。 <7> A structure for attaching the post and the trunk edge.
Next, referring to FIG. 4, attachment of the column 21 and the trunk edge 23 will be described.
As described above, the support column 21 is a pultruded member in which fibers are reinforced in a certain direction, and the reinforcing member 3 is a pseudo-isotropic member in which the fiber reinforcement direction is not constant.

＜８＞胴縁。
支柱２１に上端には水平方向に笠木２２を取り付けてあるが、それより下の中段には笠木２２と平行に胴縁２３が取り付けてある。
胴縁２３も、支柱２１と同様に一定方向に繊維補強した引抜成形の部材であり、前記したように外力によって大きくたわむという特性を備えている。
この胴縁２３は、各支柱２１に、検査路の長手方向の面に開口した貫通口に貫通させて設置する。
そして両端の支柱２１の外側において、支柱２１と一体化させて固定する。 <8> trunk edge.
A headboard 22 is attached to the upper end of the column 21 in the horizontal direction, and a trunk edge 23 is attached to the middle stage below it in parallel with the headboard 22.
The trunk edge 23 is also a pultruded member reinforced with fibers in a certain direction, like the support column 21, and has a characteristic of being greatly bent by an external force as described above.
The trunk edge 23 is installed in each column 21 so as to penetrate through a through-hole opened in the longitudinal surface of the inspection path.
And it fixes to the support | pillar 21 integrally on the outer side of the support | pillar 21 of both ends.

＜９＞胴縁の端部。
胴縁２３の両端は、支柱２１の貫通孔から外側に露出させる。
そして露出させた胴縁２３の端部、すなわち両端の支柱２１の外側の位置にストッパ４を取り付ける。
このストッパ４は、支柱２１の貫通孔の内径よりも大きい外形を持つ円筒などであり、ピン、リベットなどで胴縁２３に固定する。 <9> End of trunk edge.
Both ends of the trunk edge 23 are exposed to the outside from the through holes of the support column 21.
And the stopper 4 is attached to the edge part of the exposed trunk edge 23, ie, the position of the outer side of the support | pillar 21 of both ends.
The stopper 4 is a cylinder having an outer shape larger than the inner diameter of the through hole of the support column 21 and is fixed to the trunk edge 23 with a pin, a rivet or the like.

＜１０＞補強材の介在。
その場合にストッパ４の支柱２１との間には、貫通孔を開口した板状の補強材３を介在させる。
この補強材３は、前記したように擬似等方性の繊維強化樹脂であり、繊維の方向性の少ない部材である。
こうして、支柱２１とストッパ４の間に補強材３を介在させて、胴縁２３を支柱２１に固定する。
なお、ストッパ４と補強材３を別の部材とせず、図４の下部に示すように、ストッパ４と補強材３を一体化させた擬似等方性を有する繊維強化樹脂によって構成することもできる。
あるいは、ストッパ４と補強材３をオーバーレイアップ定着法で繋いで一体化して製造することもできる。
その場合にもストッパ４と一体化した補強材３は、補強繊維方向がない構造のものとなる。 <10> Interstitial reinforcement.
In that case, a plate-shaped reinforcing material 3 having a through hole is interposed between the stoppers 4 of the stopper 4.
As described above, the reinforcing material 3 is a pseudo-isotropic fiber-reinforced resin, and is a member having less fiber directionality.
In this way, the reinforcing material 3 is interposed between the support column 21 and the stopper 4 to fix the trunk edge 23 to the support column 21.
In addition, the stopper 4 and the reinforcing material 3 are not separate members, and can be constituted by a fiber reinforced resin having pseudo-isotropic properties in which the stopper 4 and the reinforcing material 3 are integrated as shown in the lower part of FIG. .
Alternatively, the stopper 4 and the reinforcing material 3 can be connected and integrated by an overlay up fixing method.
Even in that case, the reinforcing member 3 integrated with the stopper 4 has a structure having no reinforcing fiber direction.

＜１１＞補強材の果たす機能。
支柱２１とストッパ４の間に介在させる補強材３は、擬似等方性の繊維強化樹脂として成形してあり、繊維の方向性の少ない構造の部材である。
この補強材３を介在させるために、ストッパ４の端面は支柱２１に直接、当たることがない。
そのために胴縁２３に衝撃を含む大きな外力が与えられ、胴縁が支柱から抜け出そうとしても、ストッパ４は補強材３を介して支柱２１に衝突するから、支柱２１の貫通孔の周囲に亀裂が入るといった破損が生じなくなり、支柱２１と胴縁２３の取り付け部は耐力が向上する。
<11> Function fulfilled by the reinforcing material.
The reinforcing material 3 interposed between the support column 21 and the stopper 4 is formed as a quasi-isotropic fiber reinforced resin, and is a member having a structure with less fiber directionality.
Since the reinforcing material 3 is interposed, the end surface of the stopper 4 does not directly contact the support column 21.
Therefore, a large external force including an impact is applied to the trunk edge 23 and the stopper 4 collides with the pillar 21 via the reinforcing member 3 even if the trunk edge tries to come out of the pillar, so that a crack is generated around the through hole of the pillar 21. No damage such as entering occurs, and the strength of the attachment portion between the support column 21 and the trunk edge 23 is improved.

１：主桁
２：手摺
２１：支柱
２２：笠木
２３：胴縁
３：補強材
４：ストッパ 1: Main girder 2: Handrail 21: Post 22: Kasagi 23: Trunk edge 3: Reinforcement material 4: Stopper

Claims (2)

橋梁の下面などの状態を検査するための簡易な通路の構造であって、
検査路は、歩廊を構成する主桁と手摺とより構成し、
手摺は、
主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した支柱と、
主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した笠木とによって構成し、
支柱と笠木との取り付け部は、
擬似等方性の繊維強化樹脂で製造した補強板を介してリベットなどで締結して構成した、
検査路。
A simple passage structure for inspecting the state of the underside of the bridge, etc.
The inspection road is composed of main girders and handrails that make up the corridor,
The handrail is
Struts made of pultruded fiber reinforced resin with matching main fiber orientation,
Consists of a headboard made of pultruded fiber reinforced resin with the same main fiber direction,
The mounting part between the column and headboard is
Constructed by fastening with rivets etc. via a reinforcing plate made of pseudo-isotropic fiber reinforced resin,
Inspection road.
橋梁の下面などの状態を検査するための簡易な通路の構造であって、
検査路は、歩廊を構成する主桁と手摺と胴縁で構成し、
手摺は、
主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した支柱と、
主たる繊維の方向の一致した引抜成形繊維強化樹脂で製造した胴縁とによって構成し、
支柱と胴縁との取り付け部は、
支柱の貫通孔の内径よりも外形の大きいストッパを胴縁に取り付け、
ストッパの支柱との間には、
擬似等方性の繊維強化樹脂で製造した補強板を介在させて構成した、
検査路。 A simple passage structure for inspecting the state of the underside of the bridge, etc.
The inspection path is composed of the main girder, handrail and trunk edge that make up the corridor,
The handrail is
Struts made of pultruded fiber reinforced resin with matching main fiber orientation,
Consists of a body edge made of pultruded fiber reinforced resin with the same direction of the main fiber,
The attachment part between the column and the trunk edge is
Attach a stopper whose outer shape is larger than the inner diameter of the through-hole of the column to the trunk edge,
Between the stopper column,
Constructed by interposing a reinforcing plate made of quasi-isotropic fiber reinforced resin,
Inspection road.
JP2009011343A 2009-01-21 2009-01-21 Inspection path Active JP5029972B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194933U (en) * 2014-10-06 2014-12-18 コスモシステム株式会社 Guard fence made of fiber reinforced resin
JP2021188270A (en) * 2020-05-26 2021-12-13 株式会社栗本鐵工所 Fixing tool for rod-like member and fixing structure using the same

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JPS6340451U (en) * 1986-08-30 1988-03-16
JPH03128947U (en) * 1990-04-04 1991-12-25
JPH05459A (en) * 1991-01-25 1993-01-08 Hitachi Ltd Structure component using fiber reinforced resin composite material
JPH0681524A (en) * 1991-12-27 1994-03-22 Hiroshi Komata Enclosing frame body, enclosure, screen and decorative mount
JPH10259603A (en) * 1997-03-18 1998-09-29 Bridgestone Corp Noise absorption panel construction
JP2001207415A (en) * 2000-01-28 2001-08-03 Kyobashi Kogyo Kk Reinforcing method of bridge using reinforcing plate
JP2008174988A (en) * 2007-01-19 2008-07-31 Agc Matex Co Ltd Fence member

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Publication number Priority date Publication date Assignee Title
JPS6340451U (en) * 1986-08-30 1988-03-16
JPH03128947U (en) * 1990-04-04 1991-12-25
JPH05459A (en) * 1991-01-25 1993-01-08 Hitachi Ltd Structure component using fiber reinforced resin composite material
JPH0681524A (en) * 1991-12-27 1994-03-22 Hiroshi Komata Enclosing frame body, enclosure, screen and decorative mount
JPH10259603A (en) * 1997-03-18 1998-09-29 Bridgestone Corp Noise absorption panel construction
JP2001207415A (en) * 2000-01-28 2001-08-03 Kyobashi Kogyo Kk Reinforcing method of bridge using reinforcing plate
JP2008174988A (en) * 2007-01-19 2008-07-31 Agc Matex Co Ltd Fence member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3194933U (en) * 2014-10-06 2014-12-18 コスモシステム株式会社 Guard fence made of fiber reinforced resin
JP2021188270A (en) * 2020-05-26 2021-12-13 株式会社栗本鐵工所 Fixing tool for rod-like member and fixing structure using the same
JP6996715B2 (en) 2020-05-26 2022-02-03 株式会社栗本鐵工所 Fixture of rod-shaped member and fixing structure using it

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