JP7002968B2

JP7002968B2 - Elevation passage

Info

Publication number: JP7002968B2
Application number: JP2018044488A
Authority: JP
Inventors: 政人鶴巻
Original assignee: Sankyo Tateyama Inc
Current assignee: Sankyo Tateyama Inc
Priority date: 2018-03-12
Filing date: 2018-03-12
Publication date: 2022-01-20
Anticipated expiration: 2038-03-12
Also published as: JP2019157469A

Description

本発明は、橋梁や道路等の屋外構造物に設置される架設通路に関する。 The present invention relates to an erection passage installed in an outdoor structure such as a bridge or a road.

特許文献１には、複数の板材を主桁間に架設して主桁に固定すると共に主桁に取り付けた支柱に爪先板を固定した架設通路が開示されている。 Patent Document 1 discloses an erection passage in which a plurality of plate materials are erected between main girders and fixed to the main girder, and a toe plate is fixed to a support column attached to the main girder.

特許第５８７２９５７号公報Japanese Patent No. 5872957

しかし、特許文献１の架設通路は、施工時に複数の板材と爪先板とを別々に取り付けなければならず、施工に手間がかかり、組み立て難いという問題があった。 However, the erection passage of Patent Document 1 has a problem that a plurality of plate materials and toe plates must be separately attached at the time of construction, which is troublesome to construct and difficult to assemble.

そこで、本発明は、施工に手間がかからなくて、組み立て易い架設通路の提供を目的とする。 Therefore, an object of the present invention is to provide an erection passage that does not require much labor for construction and is easy to assemble.

請求項１に記載の発明は、一対の主桁と、横梁と、複数の床材と、一対の爪先板とを備え、一対の主桁間に横梁が架設してあり、複数の床材は各々タッピングホールを有しており、爪先板は、床材の上面よりも上方に突出する部分と床材の端面と対向する部分がある垂直片を有するものであり、複数の床材の両端に配置して、垂直片の床材の端面と対向する部分を各床材のタッピングホールにねじ止めすることで一対の爪先板と複数の床材を予め一体にして床材ユニットを形成してあり、床材ユニットを一対の主桁間に架設して主桁に固定してある架設通路である。 The invention according to claim 1 includes a pair of main girders, cross beams, a plurality of floor materials, and a pair of toe plates, and the cross beams are erected between the pair of main girders. Each has a tapping hole, and the toe plate has a vertical piece having a portion protruding upward from the upper surface of the floor material and a portion facing the end face of the floor material, and having a vertical piece at both ends of the plurality of floor materials. By arranging and screwing the portion of the vertical piece facing the end face of the floor material into the tapping hole of each floor material, the pair of toe plates and a plurality of floor materials are integrated in advance to form a floor material unit. , It is an erection passage in which the floor material unit is erected between a pair of main girders and fixed to the main girders.

請求項１に記載の発明によれば、爪先板と複数の床材とから床材ユニットを形成しているため、施工時に床材ユニットを主桁に固定することで、床材と爪先板とを同時に取り付けることができるから、組み立て易い。
また、床材ユニットには爪先板が一体に設けてあるので、従来技術のように支柱に爪先板を固定していないので、爪先板の取り付け順序が支柱との関係で制限されないから、組立順序の自由度が高い。 According to the invention according to claim 1, since the floor material unit is formed from the toe plate and a plurality of floor materials, the floor material and the toe plate can be obtained by fixing the floor material unit to the main girder at the time of construction. Can be installed at the same time, so it is easy to assemble.
Further, since the floor material unit is provided with the toe plate integrally, the toe plate is not fixed to the support column as in the prior art, and the mounting order of the toe plate is not restricted in relation to the support column. The degree of freedom is high.

本発明の第１実施の形態にかかる架設通路の側面図である。It is a side view of the erection passage which concerns on 1st Embodiment of this invention. 図１に示すＡ部の拡大図である。It is an enlarged view of the part A shown in FIG. 図１に示すＢ部の拡大図である。It is an enlarged view of the B part shown in FIG. （ａ）は図１に示すＣ－Ｃ断面図であり、（ｂ）は（ａ）に示すＤ－Ｄ断面図である。(A) is a sectional view taken along the line CC shown in FIG. 1, and (b) is a sectional view taken along the line DD shown in FIG. 1 (a). 図１に示すＥ－Ｅ側から見た一部を示す正面図である。It is a front view which shows the part seen from the EE side shown in FIG. 図４に示すＦ部の拡大図である。It is an enlarged view of the F part shown in FIG. 図１に示す架設通路の全体の正面図である。It is a front view of the whole of the erection passage shown in FIG. 図１に示す架設通路の平面図である。It is a top view of the erection passage shown in FIG. 図８に示すＨ－Ｈ断面図であって、床材ユニット部分を示す図である。FIG. 8 is a cross-sectional view taken along the line HH shown in FIG. 8 and shows a flooring unit portion. 図１に示す架設通路の施工を工程毎に示す斜視図である。It is a perspective view which shows the construction of the erection passage shown in FIG. 1 for each process. 第２実施の形態にかかる架設通路の側面図である。It is a side view of the erection passage which concerns on the 2nd Embodiment. 第１及び第２実施の形態にかかる架設通路を設置した高架道路の概略図であり、（ａ）は（ｂ）に示すＫ－Ｋ断面図であり、（ｂ）は（ａ）に示すＧ－Ｇ断面図、（ｃ）は（ｂ）を斜め下から見た斜視図である。It is a schematic diagram of the elevated road in which the erection passage according to the first and second embodiments is installed, (a) is the KK sectional view shown in (b), and (b) is G shown in (a). -G sectional view, (c) is a perspective view of (b) viewed from diagonally below.

以下に、添付図面を参照して本発明の実施の形態を説明する。図１２に本発明の第１実施の形態にかかる架設通路１Ａと第２実施の形態に係る架設通路１Ｂの設置例を示す。第１実施の形態にかかる架設通路１Ａは高架道路８０の下に設置されており、第２実施の形態にかかる架設通路１Ｂは橋脚８２の側面に設置されている。尚、図１２において、符号８３は梯子である。
まず、図１～図１０を参照して第１実施の形態にかかる架設通路１Ａについて説明する。
図１及び図７に示すように、架設通路１Ａは、一対の主桁３、３と、横梁５と、床材ユニット７と、支柱９とを備えている。
一対の主桁３、３は互いに間隔をあけて対向配置している。
図１及び図２に示すように、主桁３は、上片３ａと、下片３ｂと、上片３ａと下片３ｂとの連結部３ｃを有しており、上片３ａは連結部３ｃの上端から対向する主桁３側へ水平方向に突出しており、下片３ｂは連結部３ｃの下端から上片３ａと並行に突出しており、連結部３ｃと上片３ａと下片３ｂとで断面コ字形状を形成している。
連結部３ｃには、対向する主桁３と反対側に開口したボルト頭係合溝１１が長手方向に形成してある。ボルト頭係合溝１１は、連結部３ｃの上端部と下端部とに形成されている。
各主桁３はアルミニウム合金形材であり、長さは約６ｍである。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 12 shows an installation example of the erection passage 1A according to the first embodiment of the present invention and the erection passage 1B according to the second embodiment. The erection passage 1A according to the first embodiment is installed under the elevated road 80, and the erection passage 1B according to the second embodiment is installed on the side surface of the pier 82. In FIG. 12, reference numeral 83 is a ladder.
First, the erection passage 1A according to the first embodiment will be described with reference to FIGS. 1 to 10.
As shown in FIGS. 1 and 7, the erection passage 1A includes a pair of main girders 3 and 3, a cross beam 5, a flooring unit 7, and a support column 9.
The pair of main girders 3 and 3 are arranged so as to face each other at intervals.
As shown in FIGS. 1 and 2, the main girder 3 has an upper piece 3a, a lower piece 3b, and a connecting portion 3c between the upper piece 3a and the lower piece 3b, and the upper piece 3a has a connecting portion 3c. The lower piece 3b protrudes horizontally from the upper end of the above to the facing main girder 3 side, and the lower piece 3b protrudes in parallel with the upper piece 3a from the lower end of the connecting portion 3c. It forms a U-shaped cross section.
A bolt head engaging groove 11 opened on the opposite side of the facing main girder 3 is formed in the connecting portion 3c in the longitudinal direction. The bolt head engaging groove 11 is formed at the upper end portion and the lower end portion of the connecting portion 3c.
Each main girder 3 is an aluminum alloy profile and has a length of about 6 m.

図１、図２及び図４に示すように、横梁５は、水平片５ａと垂直片５ｂとを有し、水平片５ａと垂直片５ｂとで断面Ｌ字形状を成しており、水平片５ａを一対の主桁３、３の下片３ｂ、３ｂ間に架け渡して、下片３ｂの下からボルト１４ａの軸を通して上からナット１４ｂで固定してある。
横梁５は、図１０（ａ）（ｂ）に示すように、主桁３、３の長手方向において略等間隔に４箇所に取り付けてある。横梁５はアルミニウム合金形材であり、長さは約６０ｃｍである。 As shown in FIGS. 1, 2 and 4, the cross beam 5 has a horizontal piece 5a and a vertical piece 5b, and the horizontal piece 5a and the vertical piece 5b form an L-shaped cross section, and the horizontal piece is formed. 5a is bridged between the lower pieces 3b and 3b of the pair of main girders 3, 3 and fixed with nuts 14b from above through the shaft of the bolt 14a from below the lower pieces 3b.
As shown in FIGS. 10A and 10B, the cross beams 5 are attached to the main girders 3 and 3 at four locations at substantially equal intervals in the longitudinal direction. The cross beam 5 is an aluminum alloy profile and has a length of about 60 cm.

図１０（ｃ）及び図４に示すように、床材ユニット７は、複数の床材１３と爪先板１５とで一体に構成されている。
図１０（ｃ）及び図８に示すように、各床材１３は、平面視長方形状であり、長辺を隣合わせに並べてあり、本実施の形態では、一つの床材ユニット７に７枚の床材１３を列設してある。
図６に示すように、各床材１３には、天面部１３ａと天面部１３ａを支持する脚部１３ｂとを有し、脚部１３ｂの下端には水平方向に突出した載置片１３ｃが設けてある。各脚部１３ｂの上下方向略中央部にはタッピングホール１３ｄが形成されている。天面部１３ａの上面１３ｇには、ローレット１７が形成されている。
本実施の形態では、床材ユニット７に使用する床材１３には２種類のものが用いられている。図９に示すように、一方の床材１３Ａと他方の床材１３Ｂとである。一方の床材１３Ａは、床材１３の並び方向における一方側端部の上面に凹み段部１３ｅが形成してあり、他方側端部の上面には隣の床材１３の凹み段部１３ｅに重なる水平片部１３ｆが形成してある。図６に示すように、隣り合う床材１３、１３において、凹み段部１３ｅの底面１３ｈと水平片部１３ｆとの間には上下方向の隙間Ｓが形成してある。
図９に示すように、他方の床材１３Ｂは、床材ユニット７の他方側端に配置してあり、一方側端と他方側端との両方に凹み段部１３ｅ、１３ｅを形成してあり、水平片部１３ｆが形成されていない。即ち、他方の床材１３Ｂは、床材ユニット７においてその一方側端部と他方側端部との両方の端部に凹み段部１３ｅ、１３ｅを有する形態となっている。
尚、本実施の形態の説明において、一方の床材１３Ａと他方の床材１３Ｂとを区別して説明する以外は、一方の床材１３Ａと他方の床材１３Ｂともに床材１３として説明する。
各床材１３は、アルミニウム合金形材である。 As shown in FIGS. 10C and 4, the flooring unit 7 is integrally composed of a plurality of flooring materials 13 and a toe plate 15.
As shown in FIGS. 10C and 8, each flooring material 13 has a rectangular shape in a plan view, and the long sides are arranged side by side. In the present embodiment, seven flooring materials units 7 have seven flooring materials. Floor materials 13 are arranged in rows.
As shown in FIG. 6, each floor material 13 has a top surface portion 13a and a leg portion 13b that supports the top surface portion 13a, and a mounting piece 13c projecting in the horizontal direction is provided at the lower end of the leg portion 13b. There is. A tapping hole 13d is formed in a substantially central portion of each leg portion 13b in the vertical direction. A knurl 17 is formed on the upper surface 13g of the top surface portion 13a.
In the present embodiment, two types of flooring materials 13 used for the flooring material unit 7 are used. As shown in FIG. 9, one floor material 13A and the other floor material 13B. In one floor material 13A, a recessed step portion 13e is formed on the upper surface of one side end portion in the arrangement direction of the floor material 13, and a recessed step portion 13e of the adjacent floor material 13 is formed on the upper surface of the other side end portion. The overlapping horizontal piece portions 13f are formed. As shown in FIG. 6, in the adjacent floor materials 13 and 13, a vertical gap S is formed between the bottom surface 13h of the recessed step portion 13e and the horizontal piece portion 13f.
As shown in FIG. 9, the other floor material 13B is arranged at the other side end of the floor material unit 7, and recessed steps 13e and 13e are formed at both the one side end and the other side end. , The horizontal piece portion 13f is not formed. That is, the other floor material 13B has a form in which the floor material unit 7 has recessed steps 13e and 13e at both ends of one side end portion and the other side end portion thereof.
In the description of the present embodiment, except that one floor material 13A and the other floor material 13B are described separately, both the one floor material 13A and the other floor material 13B will be described as the floor material 13.
Each floor material 13 is an aluminum alloy profile.

図１０（ｃ）に示すように、爪先板１５は、複数の床材１３の両端（短辺側）に取り付けて、複数の床材１３と一体にしてある。
図２に示すように、各爪先板１５は、床材１３の端面から上方に突設する垂直片１５ａと、床材１３の上面１３ｇに当接する水平片１５ｂを有している。爪先板１５において、水平片１５ｂから垂直片１５ａの下端までの寸法Ｈ１は床材１３の厚さと同じ寸法としてある。
爪先板１５の垂直片１５ａには、水平片１５ｂの下側に、長手方向に所定間隔をあけてねじ挿通孔１５ｃが形成されており、ねじ挿通孔１５ｃに挿通するねじ１６で各床材１３のタッピングホール１３ｄに固定されている。
爪先板１５は、アルミニウム合金形材であり、床材ユニット７における爪先板１５の長さは約２ｍである。
図８及び図１０（ｃ）に示すように、本実施の形態では、一つの架設通路１Ａに対して、床材ユニット７を３つ設けてあり、図２に示すように、各床材ユニット７の床材１３を対向する主桁３、３の上片３ａ、３ａ間に架設して、所定の床材１３について上から止めるボルト１８で主桁３の上片３ａに固定されている。 As shown in FIG. 10 (c), the toe plate 15 is attached to both ends (short side side) of the plurality of flooring materials 13 and is integrated with the plurality of flooring materials 13.
As shown in FIG. 2, each toe plate 15 has a vertical piece 15a projecting upward from the end surface of the floor material 13 and a horizontal piece 15b that abuts on the upper surface 13g of the floor material 13. In the toe plate 15, the dimension H1 from the horizontal piece 15b to the lower end of the vertical piece 15a is the same as the thickness of the floor material 13.
On the vertical piece 15a of the toe plate 15, screw insertion holes 15c are formed on the lower side of the horizontal piece 15b at predetermined intervals in the longitudinal direction, and each floor material 13 is formed by a screw 16 that is inserted into the screw insertion hole 15c. It is fixed to the tapping hole 13d of.
The toe plate 15 is an aluminum alloy profile, and the length of the toe plate 15 in the floor material unit 7 is about 2 m.
As shown in FIGS. 8 and 10 (c), in the present embodiment, three floor material units 7 are provided for one erection passage 1A, and as shown in FIG. 2, each floor material unit is provided. The floor material 13 of 7 is erected between the upper pieces 3a and 3a of the main girders 3 and 3 facing each other, and is fixed to the upper piece 3a of the main girder 3 with a bolt 18 for fixing the predetermined floor material 13 from above.

図１及び図４（ｂ）に示すように、支柱９は、各主桁３、３に間隔をあけて列設されている。各支柱９は、一側片９ａと他側片９ｂとを有し、一側片９ａと他側片９ｂで水平断面がＬ字形状を成している。図２に示すように、支柱９には、一側片９ａにボルト軸挿通孔９ｃが形成してあり、主桁３のボルト頭係合溝１１に頭２０ａを係合したボルト２０の軸２０ｂをボルト軸挿通孔９ｃに挿通してナット２１で固定してある。支柱９は主桁３に対して、上下２か所のボルト２０及びナット２１で固定されている。
支柱９は、アルミニウム合金形材であり、横梁５と同種のものを用いている。 As shown in FIGS. 1 and 4B, the columns 9 are arranged in rows at intervals of the main girders 3 and 3. Each column 9 has a one-side piece 9a and another side piece 9b, and the one-side piece 9a and the other-side piece 9b have an L-shaped horizontal cross section. As shown in FIG. 2, in the support column 9, a bolt shaft insertion hole 9c is formed in one side piece 9a, and the shaft 20b of the bolt 20 in which the head 20a is engaged with the bolt head engagement groove 11 of the main girder 3 is formed. Is inserted into the bolt shaft insertion hole 9c and fixed with the nut 21. The column 9 is fixed to the main girder 3 with bolts 20 and nuts 21 at two places above and below.
The support column 9 is an aluminum alloy profile, and is of the same type as the cross beam 5.

図１及び図７に示すように、一方の主桁３及び他方の主桁３において、それぞれ列設された支柱９には、横桟２３及び手摺２５が架設されている。
図３に示すように、横桟２３は、断面が略円形を成しており、一側に、ボルト頭係合溝２３ａがその長手方向に形成されている。ボルト頭係合溝２３ａに頭２４ａを係合したボルト２４の軸２４ｂを、支柱９の一側片９ａに形成されたボルト軸挿通孔９ｅに挿通してナット２６で固定してある。
手摺２５は、列設された各支柱９の上端に被せてあり、床材１３側に位置する内側部２５ａと、床材１３と反対側に位置する外側部２５ｂと、内側部２５ａと外側部２５ｂとに連続する天面部２５ｃを有し、内側部２５ａと外側部２５ｂと天面部２５ｃとで断面が略コ字形状を成している。
手摺２５の内側部２５ａには、長手方向に所定間隔をあけてボルト軸挿通孔２５ｄが形成されており、支柱９に形成したボルト軸挿通孔９ｄと手摺のボルト軸挿通孔２５ｄに軸２８ｂを挿通したボルト２８をナット２９で固定してある。
横桟２３及び手摺２５は、それぞれアルミニウム合金形材である。 As shown in FIGS. 1 and 7, in one main girder 3 and the other main girder 3, a cross rail 23 and a handrail 25 are erected on the columns 9 arranged in rows, respectively.
As shown in FIG. 3, the cross section 23 has a substantially circular cross section, and a bolt head engaging groove 23a is formed on one side in the longitudinal direction thereof. The shaft 24b of the bolt 24 in which the head 24a is engaged with the bolt head engaging groove 23a is inserted into the bolt shaft insertion hole 9e formed in the one side piece 9a of the support column 9 and fixed by the nut 26.
The handrail 25 covers the upper end of each of the columns 9 arranged in a row, and has an inner portion 25a located on the floor material 13 side, an outer portion 25b located on the opposite side of the floor material 13, and an inner portion 25a and an outer portion. It has a top surface portion 25c continuous with 25b, and the inner surface portion 25a, the outer surface portion 25b, and the top surface portion 25c have a substantially U-shaped cross section.
Bolt shaft insertion holes 25d are formed in the inner portion 25a of the handrail 25 at predetermined intervals in the longitudinal direction. The inserted bolt 28 is fixed with a nut 29.
The cross rail 23 and the handrail 25 are aluminum alloy profiles, respectively.

次に、第１実施の形態にかかる架設通路１Ａの施工（組み立て）について説明する。架設通路１Ａの施工は、工場又は設置現場のいずれで行っても良い。
（１）主桁ユニットの組立工程
図１０（ａ）に示すように、主桁３、３と横梁５で構成された主桁ユニット３５を組み立てる。
主桁ユニット３５の組み立ては、一対の主桁３、３について、互いに上片３ａ、下片３ｂが対向するように互いに間隔をあけて配置し、対向する下片３ｂ、３ｂ間に所定間隔で横梁５を架設する。図２に示すように、横梁５の取り付けは、横梁５の水平片５ａを各主桁３の下片３ｂに形成したボルト軸挿通孔に下からボルト１４ａの軸を通して、上からナット１４ｂで固定する。図１０（ａ）に示すように、横梁５は主桁３の長手方向に略等間隔で４本固定する。
主桁ユニット３５は、長さ約６ｍ、巾約６０ｃｍ、重量約７０ｋｇである。尚、主桁３は１本約３０ｋｇである。 Next, the construction (assembly) of the erection passage 1A according to the first embodiment will be described. The construction of the erection passage 1A may be performed at either the factory or the installation site.
(1) Assembling Process of Main Girder Unit As shown in FIG. 10A, the main girder unit 35 composed of the main girder 3, 3 and the cross beam 5 is assembled.
The main girder unit 35 is assembled by arranging the pair of main girders 3 and 3 at intervals so that the upper pieces 3a and the lower pieces 3b face each other and the lower pieces 3b and 3b facing each other at predetermined intervals. The cross beam 5 is erected. As shown in FIG. 2, the cross beam 5 is attached by passing the horizontal piece 5a of the cross beam 5 through the bolt shaft insertion hole formed in the lower piece 3b of each main girder 3 from below and fixing it with a nut 14b from above. do. As shown in FIG. 10A, four cross beams 5 are fixed at substantially equal intervals in the longitudinal direction of the main girder 3.
The main girder unit 35 has a length of about 6 m, a width of about 60 cm, and a weight of about 70 kg. The main girder 3 weighs about 30 kg each.

（２）支柱・手摺の取付工程
次に、図１０（ｂ）に示すように、主桁ユニット３５の各主桁３、３に間隔をあけて支柱９を取り付けると共に、支柱９には横桟２３、手摺２５を取り付ける。
図２に示すように、支柱９の取り付けは、主桁３、３に形成してある上下のボルト頭係合溝１１、１１に、その端から各々ボルト２０の頭２０ａを係合して、各ボルト２０を支柱９の取り付け位置まで移動し、支柱９の一側片９ａに形成されているボルト軸挿通孔９ｃにボルト２０の軸２０ｂを挿通して、ナット２１で横から止める。支柱９は主桁３にその上下２箇所で固定する。
図１０（ｂ）に示すように、本実施の形態では、横梁５の取り付け位置に対応して支柱９を取り付けてあり、一方の主桁３に合計４本取り付けている。
その後、図３に示すように、横桟２３のボルト頭係合溝２３ａの端からボルト２４の頭２４ａを係合して各支柱９の位置までずらして、対応する支柱９の位置で、支柱９のボルト軸挿通孔９ｅにボルト２４の軸２４ｂを挿通し、ナット２６で固定する。同様にして上下２本の横桟２３を４本の支柱９に架設して取り付ける。
手摺２５は、各支柱９の上端に天面部２５ｃを被せるように配置し、内側部２５ａのボルト軸挿通孔２５ｄ及び支柱９の一側片９ａに形成したボルト軸挿通孔９ｄにボルト２８の軸２８ｂを挿通して、ナット２９で固定する。
他方の主桁３についても、一方の主桁３と同様に支柱９、横桟２３及び手摺２５を取り付ける。 (2) Column / Handrail Mounting Step Next, as shown in FIG. 10B, the columns 9 are attached to the main girders 3 and 3 of the main girder unit 35 at intervals, and the horizontal rails are attached to the columns 9. 23, handrail 25 is attached.
As shown in FIG. 2, the support column 9 is attached by engaging the heads 20a of the bolts 20 with the upper and lower bolt head engaging grooves 11 and 11 formed in the main girders 3 and 3 from their ends. Each bolt 20 is moved to the mounting position of the support column 9, the shaft 20b of the bolt 20 is inserted into the bolt shaft insertion hole 9c formed in the one side piece 9a of the support column 9, and the shaft 20b of the bolt 20 is fastened from the side with the nut 21. The support column 9 is fixed to the main girder 3 at two points above and below it.
As shown in FIG. 10B, in the present embodiment, the columns 9 are attached corresponding to the attachment positions of the cross beams 5, and a total of four columns 9 are attached to one of the main girders 3.
After that, as shown in FIG. 3, the head 24a of the bolt 24 is engaged from the end of the bolt head engaging groove 23a of the cross rail 23 and shifted to the position of each support column 9, and the support column is at the position of the corresponding support column 9. The shaft 24b of the bolt 24 is inserted into the bolt shaft insertion hole 9e of No. 9 and fixed with the nut 26. In the same manner, the two upper and lower cross rails 23 are erected and attached to the four columns 9.
The handrail 25 is arranged so as to cover the upper end of each column 9 with the top surface portion 25c, and the shaft of the bolt 28 is provided in the bolt shaft insertion hole 25d of the inner portion 25a and the bolt shaft insertion hole 9d formed in the one side piece 9a of the column 9. 28b is inserted and fixed with a nut 29.
As for the other main girder 3, the support column 9, the cross rail 23, and the handrail 25 are attached in the same manner as the one main girder 3.

（３）床材ユニットの取付工程
図１０（ｃ）に示すように、床材ユニット７を用意する。
図９に示すように、床材ユニット７は、床材１３の並び方向の一方側と他方側に凹み段部１３ｅを有する他方の床材１３Ｂを端に配置して、他方の床材１３Ｂの一方側の隣に一方の床材１３Ａを配置し、一方の床材１３Ａの水平片部１３ｆを他方の床材１３Ｂの凹み段部１３ｅの底面１３ｈに重ねて配置する。更に、一方の床材１３Ａの一方側の隣に一方の床材１３Ａを順次長辺を隣合わせにして配置するが、各一方の床材１３Ａは、水平片部１３ｆを他方の床材の凹み段部１３ｅの底面１３ｈに重ねる。このようにして、他方の床材１３Ｂを端にして一方の床材１３Ａを６枚、合計７枚の床材１３を並べる（図８及び図１０（ｃ）参照）。
次に、７枚並べた床材１３の左右端に爪先板１５を配置するが、図２に示すように、爪先板１５の水平片１５ｂが各床材１３の上面１３ｇに当接する位置に床材１３を位置決めした後、横から止めるねじ１６を爪先板１５のねじ挿通孔１５ｃに挿通して各床材１３のタッピングホール１３ｄに螺合する。
以上のようにして、図１０（ｃ）に示すように、並べて配置した７枚の床材１３に対してその左右端に爪先板１５を取り付けた床材ユニット７を組み立てる。
次に、図１０（ｃ）及び図１に示すように、各床材ユニット７の左右端を対向する主桁３、３の上片３ａ、３ａ間に架設し、床材１３の上からボルト１８で上片３ａに固定する。図８に示すように、ボルト１８による固定は、すべての床材１３に行わず、床材ユニット７の一方側端及び他方側端にある床材１３、１３とこれらの略中間に位置する床材１３の合計３枚の床材１３に対して行う。
本実施の形態では、合計３つの床材ユニット７を用意して、主桁３、３の長手方向に３つ並べて固定する。
以上のようにして、図１、図７及び図８に示す架設通路１Ａを組み立てる。 (3) Flooring unit mounting process As shown in FIG. 10 (c), the flooring unit 7 is prepared.
As shown in FIG. 9, in the floor material unit 7, the other floor material 13B having recessed step portions 13e on one side and the other side in the arrangement direction of the floor material 13 is arranged at the end of the other floor material 13B. One floor material 13A is arranged next to one side, and the horizontal piece portion 13f of the one floor material 13A is arranged so as to overlap the bottom surface 13h of the recessed step portion 13e of the other floor material 13B. Further, one floor material 13A is sequentially arranged next to one side of one floor material 13A with the long sides next to each other. In each floor material 13A, the horizontal piece portion 13f is recessed in the other floor material. It is overlapped with the bottom surface 13h of the portion 13e. In this way, six flooring materials 13A are arranged with the other flooring material 13B at the end, for a total of seven flooring materials 13 (see FIGS. 8 and 10 (c)).
Next, the toe plates 15 are arranged at the left and right ends of the seven floor materials 13, and as shown in FIG. 2, the floor is located at a position where the horizontal piece 15b of the toe plates 15 abuts on the upper surface 13 g of each floor material 13. After positioning the material 13, the screw 16 to be stopped from the side is inserted into the screw insertion hole 15c of the toe plate 15 and screwed into the tapping hole 13d of each floor material 13.
As described above, as shown in FIG. 10 (c), the floor material unit 7 in which the toe plates 15 are attached to the left and right ends of the seven floor materials 13 arranged side by side is assembled.
Next, as shown in FIGS. 10 (c) and 1, the left and right ends of each floor material unit 7 are erected between the upper pieces 3a and 3a of the main girders 3 and 3 facing each other, and bolts are installed from above the floor material 13. Fix it to the upper piece 3a at 18. As shown in FIG. 8, the fixing by the bolt 18 is not performed on all the floor materials 13, but the floor materials 13 and 13 at one side end and the other side end of the floor material unit 7 and the floor located substantially between them. This is performed for a total of three floor materials 13 of the material 13.
In the present embodiment, a total of three flooring units 7 are prepared, and three of the main girders 3 and 3 are arranged side by side and fixed in the longitudinal direction.
As described above, the erection passage 1A shown in FIGS. 1, 7 and 8 is assembled.

図１０（ｄ）に示すように、架設通路１Ａは、例えば、高所作業車３１や足場３３での作業により高架道路８０の橋脚８２や側壁８１に設けてあるＨ鋼材等の躯体８５にボルト・ナットで固定する。 As shown in FIG. 10D, the erection passage 1A is bolted to a skeleton 85 such as H steel material provided on the pier 82 and the side wall 81 of the elevated road 80 by working with the aerial work platform 31 or the scaffolding 33, for example.・ Fix with nuts.

第１実施の形態にかかる架設通路１Ａの作用効果について説明する。
図１及び図２に示すように、対向する一対の主桁３は、各々上片３ａ、下片３ｂ、これらの連結部３ｃで断面コ字形状を成しているので、ホロー形材に比較して材料の使用量を少なくでき、材料コストが安価で且つ軽量化ができる。
各主桁３、３と横梁５との取り付けは、主桁３の下片３ｂと横梁５の水平片５ａを上下方向から止めるボルト１４ａとナット１４ｂで固定しており、主桁３、３に横梁５を取り付けるためのボルト頭係合溝が不要であるから、施工性が良い。
主桁３は断面コ字形状であり、横梁５及び支柱９は断面Ｌ字形状であり、いずれもホロー形材を用いていないので、架設通路１Ａの全体としても軽量であるから、工場での組み立や施工現場での組み立てのいずれも容易にできるので、この点においても施工性が良い。
図４に示すように、横梁５及び支柱９は断面Ｌ字形状を成しているので、同種のものを用いることができ、横梁５と支柱９との間で部材の兼用化及び軽量化ができるから、この点においてもコストダウンを図ることができる。 The operation and effect of the erection passage 1A according to the first embodiment will be described.
As shown in FIGS. 1 and 2, the pair of main girders 3 facing each other have a U-shaped cross section with the upper piece 3a, the lower piece 3b, and the connecting portion 3c thereof, respectively, and therefore compared with the hollow profile. As a result, the amount of material used can be reduced, the material cost can be reduced, and the weight can be reduced.
The main girders 3 and 3 and the cross beam 5 are attached to the main girders 3 and 3 by bolts 14a and nuts 14b that fasten the lower piece 3b of the main girder 3 and the horizontal piece 5a of the cross beam 5 from the vertical direction. Since the bolt head engaging groove for attaching the cross beam 5 is unnecessary, the workability is good.
The main girder 3 has a U-shaped cross section, and the cross beams 5 and the columns 9 have an L-shaped cross section. Since neither of them uses hollow lumber, the erection passage 1A as a whole is lightweight, so that it can be used at a factory. Since both assembly and assembly at the construction site can be easily performed, the workability is good in this respect as well.
As shown in FIG. 4, since the cross beam 5 and the support column 9 have an L-shaped cross section, the same type can be used, and the members can be shared and the weight is reduced between the cross beam 5 and the support column 9. Therefore, it is possible to reduce the cost in this respect as well.

図１及び図１０（ｃ）に示すように、爪先板１５と複数の床材１３とからなる床材ユニット７を形成しているため、施工時に床材ユニット７を主桁３、３に固定することで、複数の床材１３と爪先板１５とを同時に取り付けできるから、組み立て易い。
床材ユニット７には、爪先板１５が一体に設けてあるので、従来技術のように支柱に爪先板を固定していないので、爪先板１５の取り付け順序が支柱９との関係で制限されないから、組立順序の自由度が高い。 As shown in FIGS. 1 and 10 (c), since the floor material unit 7 composed of the toe plate 15 and the plurality of floor materials 13 is formed, the floor material unit 7 is fixed to the main girders 3 and 3 at the time of construction. By doing so, the plurality of flooring materials 13 and the toe plate 15 can be attached at the same time, so that it is easy to assemble.
Since the toe plate 15 is integrally provided on the floor material unit 7, the toe plate is not fixed to the support column as in the prior art, so that the mounting order of the toe plate 15 is not limited in relation to the support column 9. , High degree of freedom in assembly order.

図８に示すように、複数の床材１３で床材ユニット７を構成しているので、床材１３は一枚ずつ主桁３に固定しなくて済み、所定の床材１３のみを固定すれば足りるので、固定箇所を少なくできる。
床材ユニット７は、床材１３の並び方向の一方側に凹み段部１３ｅを形成して他方側に水平片部１３ｆを形成した一方の床材１３Ａと、一方側及び他方側の両方に凹み段部１３ｅを形成した他方の床材１３Ｂを用いることで、床材ユニット７の一方側端と他方側端とに凹み段部１３ｅを設けることができるから左右勝手がない。
床材ユニット７は、その爪先板１５の長さを２ｍとして、複数の床材ユニット７で架設通路１Ａを組み立てているので、一つの床材ユニット７を軽量にでき、運搬や施工が容易である。 As shown in FIG. 8, since the flooring unit 7 is composed of a plurality of flooring materials 13, it is not necessary to fix the flooring material 13 to the main girder 3 one by one, and only the predetermined flooring material 13 is fixed. Since it is enough, the number of fixed points can be reduced.
The floor material unit 7 has a recessed step portion 13e formed on one side in the arrangement direction of the floor material 13 and a horizontal piece portion 13f formed on the other side, and the floor material unit 7 is recessed on both one side and the other side. By using the other floor material 13B on which the step portion 13e is formed, the recessed step portion 13e can be provided at one side end and the other side end of the floor material unit 7, so that there is no left-right hand.
Since the floor material unit 7 has a toe plate 15 of 2 m in length and the erection passage 1A is assembled by a plurality of floor material units 7, one floor material unit 7 can be made lightweight and easy to transport and construct. be.

図２に示すように、床材ユニット７において、爪先板１５は床材１３の上面１３ｇに当接する水平片１５ｂを有するから、床材１３を爪先板１５に取り付ける際に各床材１３の上下方向の位置決めができるので、ユニット化しやすい。
爪先板１５は水平片１５ｂから垂直片１５ａの下端までの寸法Ｈ１が床材１３の厚さと略同じであるから、床材１３の端部小口を垂直片１５ａで隠すことができ、外観が良い。
図１及び図２に示すように、主桁３は上片３ａ、下片３ｂ及び連結部３ｃとで断面コ字形状を成しており、床材ユニット７は、主桁３の上片３ａに上から止めるボルト１８により固定できるので、作業性が良い。
床材１３についても、床材１３は対向する主桁３の上片３ａ、３ａ間に架け渡して取り付けてあるので、床材１３の取り付けが容易にできる。
図２に示すように、爪先板１５にはその長手方向に所定間隔で床材１３に取り付けるねじ挿通孔１５ｃが形成してあるから、ねじ１６をねじ挿通孔１５ｃに挿通して床材１３に形成してあるタッピングホール１３ｄに固定できるから、爪先板１５の取り付けが容易にできる。
図６に示すように、床材１３は、配列方向の一方側に凹み段部１３ｅを形成して他方側に水平片部１３ｆを形成し、水平片部１３ｆが隣り合う床材１３の凹み段部１３ｅの底面１３ｈに重なり、凹み段部１３ｅの底面１３ｈと水平片部１３ｆとの間に上下方向の隙間Ｓを形成しているから、水平片部１３ｆで隣り合う床材との間の隙間を隠しながら、隙間Ｓで水抜きができる。
床材１３は、上面１３ｇにローレット１７を付けてあるから、滑り難い。
各支柱９の上端には手摺２５を被せて架設してあるので、架設通路１Ａでの移動がし易い。 As shown in FIG. 2, in the floor material unit 7, since the toe plate 15 has a horizontal piece 15b that abuts on the upper surface 13 g of the floor material 13, when the floor material 13 is attached to the toe plate 15, the upper and lower sides of each floor material 13 are raised and lowered. Since the direction can be positioned, it is easy to unitize.
Since the dimension H1 from the horizontal piece 15b to the lower end of the vertical piece 15a of the toe plate 15 is substantially the same as the thickness of the floor material 13, the edge edge of the floor material 13 can be hidden by the vertical piece 15a, and the appearance is good. ..
As shown in FIGS. 1 and 2, the main girder 3 has a U-shaped cross section with the upper piece 3a, the lower piece 3b, and the connecting portion 3c, and the floor material unit 7 has the upper piece 3a of the main girder 3. Workability is good because it can be fixed by the bolt 18 that is fixed from above.
As for the floor material 13, since the floor material 13 is mounted so as to be bridged between the upper pieces 3a and 3a of the opposing main girders 3, the floor material 13 can be easily attached.
As shown in FIG. 2, since the toe plate 15 is formed with screw insertion holes 15c to be attached to the floor material 13 at predetermined intervals in the longitudinal direction thereof, the screws 16 are inserted into the screw insertion holes 15c into the floor material 13. Since it can be fixed to the formed tapping hole 13d, the toe plate 15 can be easily attached.
As shown in FIG. 6, in the floor material 13, a recessed step portion 13e is formed on one side in the arrangement direction, a horizontal piece portion 13f is formed on the other side, and the recessed steps of the floor material 13 in which the horizontal piece portions 13f are adjacent to each other. Since it overlaps with the bottom surface 13h of the portion 13e and forms a vertical gap S between the bottom surface 13h of the recessed step portion 13e and the horizontal piece portion 13f, the gap between the horizontal piece portion 13f and the adjacent floor material is formed. You can drain water in the gap S while hiding.
Since the floor material 13 has a knurl 17 attached to the upper surface 13 g, it is not slippery.
Since the handrail 25 is erected on the upper end of each column 9, it is easy to move in the erection passage 1A.

以下に本発明の他の実施の形態を説明するが、以下に説明する実施の形態において、上述した第１実施の形態と同一の作用効果を奏する部分には同一の符号を付することによりその部分の詳細な説明を省略し、以下の説明では第１実施の形態と主に異なる点を説明する。
図１１に、本発明の第２実施の形態にかかる架設通路１Ｂを示す。この第２実施の形態では、一対の主桁３、３において、一方の主桁３にのみ支柱９を取り付けると共にその支柱９に横桟２３と手摺２５を取り付けてあり、他方の主桁３には支柱９、横桟２３及び手摺２５を設けていないことが、上述した第１実施の形態と異なっている。
この第２実施の形態にかかる架設通路１Ｂは、図１２に示すように、一対の主桁３について一方の主桁３側に屋外構造物の壁がある場合に使用するものである。
この第２実施の形態によれば、上述した第１実施の形態と同様の作用効果を奏することができる。
更に、第２実施の形態にかかる架設通路１Ｂは、第１実施の形態にかかる架設通路１Ａに対して、一方の主桁３側のみに支柱９、横桟２３及び手摺２５を取り付ける構成であるから、同じ構成部品と同じ工程で施工できる。 Although other embodiments of the present invention will be described below, in the embodiments described below, the portions having the same effects as those of the above-mentioned first embodiment are designated by the same reference numerals. The detailed description of the portion will be omitted, and the following description will mainly explain the differences from the first embodiment.
FIG. 11 shows an erection passage 1B according to a second embodiment of the present invention. In the second embodiment, in the pair of main girders 3 and 3, the support column 9 is attached only to one main girder 3, and the cross rail 23 and the handrail 25 are attached to the support column 9, and the other main girder 3 is attached. Is different from the above-described first embodiment in that the support 9, the cross rail 23, and the handrail 25 are not provided.
As shown in FIG. 12, the erection passage 1B according to the second embodiment is used when there is a wall of an outdoor structure on one main girder 3 side of a pair of main girders 3.
According to this second embodiment, it is possible to obtain the same effects as those of the first embodiment described above.
Further, the erection passage 1B according to the second embodiment has a configuration in which a support 9, a cross rail 23, and a handrail 25 are attached only to one main girder 3 side with respect to the erection passage 1A according to the first embodiment. Therefore, it can be installed in the same process with the same components.

本発明は、上述した実施の形態に限らず、本発明の要旨を逸脱しない範囲で種々変形可能である。
例えば、図１０（ａ）～（ｃ）で示す架設通路１Ａの組み立ては、すべて工場で行っても良いし、図１０（ａ）（ｂ）の組み立てと、床材ユニット７の組み立てを工場で行い、図１０（ｃ）に示す床材ユニット７を対向する主桁３、３を取り付ける工程を施工現場で行うものでも良い。また、床材ユニット７の組み立てのみを工場で行っても良い。
図１０（ｂ）で示すように、支柱９、横桟２３及び手摺２５を工場で組み立てて支柱ユニットにして、図１０（ａ）に示す主桁ユニット３５の各主桁３、３に支柱ユニットの支柱９を取り付けても良い。
図１０（ａ）～（ｃ）に示す架設通路１Ａの組み立て工程において、（ａ）に示す主桁ユニット３５を組み立てた後に、（ｃ）に示す床材ユニット７を取り付け、その後（ｂ）に示すように、支柱９、横桟２３及び手摺２５を取り付けても良い。 The present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist of the present invention.
For example, all the assembly of the erection passage 1A shown in FIGS. 10A to 10C may be performed at the factory, or the assembly of FIGS. 10A and 10B and the assembly of the floor material unit 7 may be performed at the factory. The step of attaching the main girders 3 and 3 facing the floor material unit 7 shown in FIG. 10 (c) may be performed at the construction site. Further, only the floor material unit 7 may be assembled at the factory.
As shown in FIG. 10B, the support column 9, the cross rail 23, and the handrail 25 are assembled into a support column unit at the factory, and the support column units are attached to the main girders 3 and 3 of the main girder unit 35 shown in FIG. 10 (a). The support column 9 may be attached.
In the assembling step of the erection passage 1A shown in FIGS. 10A to 10C, after assembling the main girder unit 35 shown in (a), the flooring unit 7 shown in (c) is attached, and then in (b). As shown, a support 9, a cross rail 23, and a handrail 25 may be attached.

１Ａ架設通路（第１実施の形態）
１Ｂ架設通路（第２実施の形態）
３主桁
５横梁
７床材ユニット
１３床材
１５爪先板 1A erection passage (first embodiment)
1B erection passage (second embodiment)
3 Main girder 5 Cross beam 7 Floor material unit 13 Floor material 15 Toe plate

Claims

It is equipped with a pair of main girders, cross beams, multiple flooring materials, and a pair of toe plates.
A cross beam is erected between a pair of main girders,
Multiple flooring materials each have a tapping hole,
The toe plate has a vertical piece having a portion protruding upward from the upper surface of the floor material and a portion facing the end face of the floor material, and is arranged at both ends of a plurality of floor materials to form the floor material of the vertical piece. A pair of toe plates and a plurality of flooring materials are integrated in advance to form a flooring material unit by screwing the portion facing the end face of the flooring material into the tapping hole of each flooring material .
An erection passage where flooring units are erected between a pair of main girders and fixed to the main girders.