JP2002002878A - Beam structure cover lid and method for reinforcing the same - Google Patents
Beam structure cover lid and method for reinforcing the sameInfo
- Publication number
- JP2002002878A JP2002002878A JP2000183400A JP2000183400A JP2002002878A JP 2002002878 A JP2002002878 A JP 2002002878A JP 2000183400 A JP2000183400 A JP 2000183400A JP 2000183400 A JP2000183400 A JP 2000183400A JP 2002002878 A JP2002002878 A JP 2002002878A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- reinforcing
- width
- beam structure
- top plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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- Rod-Shaped Construction Members (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、水槽や水路などに
架設される梁構造覆蓋およびその補強方法に関するもの
で、特にガラス繊維強化プラスチック発泡体で成された
覆蓋に好適なものに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover for a beam structure installed in a water tank or a water channel and a method for reinforcing the same, and more particularly to a cover suitable for a cover made of glass fiber reinforced plastic foam.
【０００２】[0002]
【従来の技術】水槽や水路などを覆うために架設する覆
蓋は軽量で耐久性が高いことが必要であり、従来は木材
などを用いた梁構造の覆蓋が用いられていた。しかし、
木材は腐食するため木材に代えて軽量で耐久性、耐食性
に優れた合成木材が開発され使用されるようになってき
た。2. Description of the Related Art Covers provided for covering water tanks, waterways and the like are required to be lightweight and have high durability. Conventionally, cover covers having a beam structure made of wood or the like have been used. But,
Since wood corrodes, synthetic wood that is lightweight, durable, and excellent in corrosion resistance has been developed and used in place of wood.
【０００３】図５は、このような合成木材で成された覆
蓋を架設場所に架設した状況を斜視図で示している。覆
蓋は、架設場所の開口端Ｐに覆蓋１００の前後端部を掛
け渡し、この覆蓋１００の左右に覆蓋２００を隣接させ
て掛け渡すようにして、覆蓋１００と覆蓋２００とを交
互に架設するようになっている。FIG. 5 is a perspective view showing a situation where such a cover made of synthetic wood is erected at an erection site. The cover covers the front and rear ends of the cover 100 around the open end P of the installation location, and covers the cover 200 adjacent to the left and right sides of the cover 100 so that the cover 100 and the cover 200 are alternately provided. It has become.
【０００４】図６は、覆蓋１００，２００を断面図で示
したものである。覆蓋１００は、天板（面板）１０１の
左右側部の裏面に主梁（梁）１０２，１０２を接合し、
天板１０１の左右側縁から支持部材１０３を突出させて
天板１０１の裏面に接合すると共に、主梁１０２同士の
間に複数の梁部材を掛け渡して接合した梁構造とされて
いる。他方の覆蓋２００は、天板２０１の左右側部の裏
面に主梁２０２，２０２を接合し、主梁２０２同士の間
に複数の梁部材を掛け渡して接合した梁構造とされてい
る。FIG. 6 is a sectional view of the cover 100, 200. As shown in FIG. The cover 100 has main beams (beams) 102 and 102 joined to the left and right side back surfaces of a top plate (face plate) 101,
The support member 103 projects from the left and right side edges of the top plate 101 and is joined to the back surface of the top plate 101, and a plurality of beam members are bridged between the main beams 102 and joined. The other cover 200 has a beam structure in which main beams 202 and 202 are joined to the back surfaces on the left and right sides of the top plate 201, and a plurality of beam members are bridged between the main beams 202 to join.
【０００５】このような覆蓋１００，２００は交互に隣
接して架設される。則ち、覆蓋１００の天板１０１と覆
蓋２００の天板２０１との側縁同士が突き合わされ、覆
蓋１００の支持部１０３が覆蓋２００の天板２０１の側
縁を下方から支持する。これにより、天板１０１，２０
１同士のシール性を向上させている。[0005] Such cover lids 100 and 200 are installed alternately adjacently. That is, the side edges of the top plate 101 of the cover 100 and the top plate 201 of the cover 200 are abutted against each other, and the support portion 103 of the cover 100 supports the side edge of the top plate 201 of the cover 200 from below. Thereby, the top plates 101, 20
The sealing property between the two is improved.
【０００６】ところで、架設場所によっては、これまで
人だけが通行していた場所に自動車も通りだすというよ
うな環境変化を伴うことがあり、覆蓋に加わる荷重が大
きくなることがある。また、合成木材自体は耐食性に優
れているが、合成木材を接合する接着剤は周囲環境によ
って劣化したり、接合強度が低下して覆蓋が規定の強度
を維持できなくなることもある。[0006] By the way, depending on the installation location, there may be a change in the environment, such as the passage of a car to a place where only people have previously passed, and the load applied to the cover may increase. Further, although synthetic wood itself is excellent in corrosion resistance, the adhesive for joining synthetic wood may be degraded by the surrounding environment, or the joining strength may be reduced so that the cover cannot maintain the specified strength.
【０００７】このような場合、覆蓋を構成する合成木材
が経年変化を生じない故に、覆蓋を補強するなどして再
利用したいという要望が強い。前記した構造の覆蓋を補
強するには主梁の強度を向上させるのが最も合理的で容
易な方法である。In such a case, since the synthetic wood constituting the cover does not change over time, there is a strong demand to recycle the cover by reinforcing the cover. The most rational and easy way to reinforce the cover of the above structure is to increase the strength of the main beam.
【０００８】図７は、覆蓋１００の主梁１０２，１０２
の外側に補強部材として補強主梁１０４，１０４を重ね
て接合した状態を断面図で示したもので、主梁１０２を
効果的に補強して再利用することが可能である。FIG. 7 shows the main beams 102 of the cover 100.
The cross-sectional view shows a state in which reinforcing main beams 104, 104 are overlapped and joined as reinforcing members on the outside of the main beam, and the main beam 102 can be effectively reinforced and reused.
【０００９】[0009]
【発明が解決しようとする課題】ところが図８に示すよ
うに、覆蓋２００の主梁２０２，２０２の外側に補強主
梁２０３，２０３を接合すると、天板２０１の側縁から
補強主梁２０３が退入する幅がなくなり、覆蓋１００の
支持部１０３で覆蓋２００の天板２０１の下面を支持す
ることができなかった。則ち、隣接する覆蓋の天板１０
１と天板２０１とが突き合わされただけになり、支持部
１０３によるシール性が確保できないため、主梁２０２
の外面に補強主梁２０３を接合する構成を採ることがで
きなかった。However, as shown in FIG. 8, when the reinforcing main beams 203, 203 are joined to the outside of the main beams 202, 202 of the cover 200, the reinforcing main beams 203 are formed from the side edges of the top plate 201. There was no more retreat width, and the lower surface of the top plate 201 of the cover 200 could not be supported by the support portion 103 of the cover 100. That is, the top plate 10 of the adjacent cover lid
1 and the top plate 201 are only abutted with each other, and the sealing performance of the support portion 103 cannot be ensured.
The structure in which the reinforcing main beam 203 is joined to the outer surface of No. 2 cannot be adopted.
【００１０】本発明は、前記した事情に鑑みて提案され
るもので、覆蓋の種類に拘わらず、予め合理的な補強構
造を採ることのできる梁構造としておき、必要に応じて
容易に補強して再利用できる梁構造覆蓋を提供すること
を目的としている。また、同時に提案される本発明は、
この梁構造覆蓋の補強方法を提案するものである。The present invention has been proposed in view of the above-mentioned circumstances, and has a beam structure capable of adopting a reasonable reinforcing structure in advance regardless of the type of cover, and can easily reinforce the structure as necessary. The purpose of the present invention is to provide a beam structure cover that can be reused. Also, the present invention proposed at the same time,
The present invention proposes a method of reinforcing the beam structure cover.
【００１１】[0011]
【課題を解決するための手段】前記目的を達成するため
に提案される本発明は、天板（面板）の左右側部の裏面
に梁を設け、前後に離間する蓋受け部に左右方向に複数
並べて架設される梁構造覆蓋であって、隣接する覆蓋の
天板の左右側縁同士は突き合わされ、隣接する一方の覆
蓋には、他方の覆蓋の天板の側縁を下方から支持する支
持部が設けられた構成とされており、支持部に隣接して
支持される天板の側縁から梁が退入する幅を、支持部が
天板の側縁から突出する幅よりも所定長さだけ大きくし
ている。In order to achieve the above object, the present invention proposes a method in which a beam is provided on the back surface of the left and right sides of a top plate (face plate), and a lid receiving portion which is separated from front to back is provided with a left and right direction. A plurality of beam-structured covers laid side by side, wherein left and right side edges of a top plate of an adjacent cover are abutted with each other, and a support for supporting the side edge of the top plate of the other cover from below on one adjacent cover. The width at which the beam retreats from the side edge of the top plate supported adjacent to the support portion is a predetermined length longer than the width at which the support portion projects from the side edge of the top plate. It is just bigger.
【００１２】この構造の覆蓋であれば、隣接する覆蓋の
天板の側縁同士を突き合わせるようにして並べて架設す
ると、支持部は隣接する天板の側縁下面を下方から支持
すると共に、支持部の側縁と隣接する覆蓋の梁との間に
は所定幅の隙間が生じる。これにより、この隙間の幅と
同一或いは薄い厚さの補強部材を梁の外面に重ね合わせ
て接合することが可能となる。また、本発明の梁構造で
は、天板の側縁から退入させる梁の退入幅を所定幅だけ
大きくしただけなので、構造的な強度は維持される。
尚、本発明で言う天板の左右側縁の突き合わせとは、左
右側縁が当接している場合や僅かに隙間があいている場
合も含む状態を言う。In the case of the cover having this structure, when the side walls of the top plate of the adjacent cover are placed side by side so as to abut each other, the supporting portion supports the lower surface of the side edge of the adjacent top plate from below and supports the lower surface. There is a gap of a predetermined width between the side edge of the part and the beam of the adjacent lid. This makes it possible to overlap and join a reinforcing member having the same or a smaller thickness as the width of the gap on the outer surface of the beam. Further, in the beam structure of the present invention, since the retreat width of the beam retracted from the side edge of the top plate is merely increased by a predetermined width, the structural strength is maintained.
Note that the abutment of the left and right side edges of the top plate referred to in the present invention refers to a state including a case where the left and right side edges are in contact with each other and a case where there is a slight gap.
【００１３】前記本発明において、支持部に隣接して支
持される天板の側縁から梁が退入する幅を、予め、少な
くとも支持部が天板の側縁から突出する幅に梁外面側に
接合可能な補強部材の厚さを加えた幅とした構造を採る
こともできる。この構造によれば、覆蓋の補強時に所定
の厚さの補強部材を梁の外面側に接合して補強すること
ができ、しかも、支持部によって支持される天板下面の
長さは確保される。In the present invention, the width at which the beam retreats from the side edge of the top plate supported adjacent to the support portion is set at least in advance to the width at which the support portion protrudes from the side edge of the top plate. Alternatively, a structure having a width obtained by adding the thickness of the reinforcing member that can be joined to the member may be employed. According to this structure, when reinforcing the cover, a reinforcing member having a predetermined thickness can be joined to the outer surface side of the beam to reinforce, and the length of the lower surface of the top plate supported by the support portion is secured. .
【００１４】前記した本発明は、梁構造体の板材自体が
長期に渡って劣化しないものが好適である。則ち、木材
などを用いた覆蓋であれば、長期の使用によって腐食し
て再利用できない。しかし、ガラス繊維強化プラスチッ
ク発泡体の板材で成された覆蓋であれば、耐久性、加工
性が向上すると共に軽量化を実現でき再利用が可能であ
る。さらに好ましくは、覆蓋を構成する板材は、長手方
向に向けて埋設した長繊維で補強した樹脂（これを「合
成木材」という）により形成することができ、より好ま
しくはガラス長繊維を長手方向に引き揃えて埋設した熱
硬化性樹脂発泡体により形成することができる。また、
上記合成木材単体からなる板材により覆蓋を構成しても
よいが、合成木材や樹脂発泡体などからなる板材を上下
に積層してなる複合材により覆蓋を形成することもでき
る。なお、合成木材の密度は、一般的には５００〜１０
００ｋｇ／ｍ3（０．５〜１．０ｇ／ｃｍ3）であり、補
強材である長繊維の含有量は４０〜６０重量％程度のも
のとすることができる。長繊維としては、無機質、有機
質のいずれを使用してもよいが、ガラス繊維を使用する
ことが好ましい。熱硬化性樹脂発泡体としては、硬質ポ
リウレタン樹脂や硬質ポリエステル樹脂を好適に使用で
きる。In the present invention described above, it is preferable that the plate material of the beam structure does not deteriorate over a long period of time. That is, a cover made of wood or the like cannot be reused due to corrosion due to long-term use. However, if the cover is made of a glass fiber reinforced plastic foam plate, the durability and workability are improved, the weight is reduced, and the cover can be reused. More preferably, the plate material constituting the cover can be formed of a resin reinforced with long fibers buried in the longitudinal direction (this is referred to as "synthetic wood"), and more preferably, the long glass fibers are stretched in the longitudinal direction. It can be formed of a thermosetting resin foam embedded and aligned. Also,
The cover may be formed of a plate made of the above-described synthetic wood alone, but the cover may be formed of a composite material in which a plate made of synthetic wood, a resin foam, or the like is vertically stacked. The density of synthetic wood is generally 500 to 10
00 kg / m 3 (0.5 to 1.0 g / cm 3 ), and the content of the long fiber as a reinforcing material can be about 40 to 60% by weight. As the long fibers, either inorganic or organic fibers may be used, but glass fibers are preferably used. As the thermosetting resin foam, a hard polyurethane resin or a hard polyester resin can be suitably used.
【００１５】また、同時に提案される本発明は前記した
本発明の覆蓋の補強方法を提案するものである。則ち、
蓋受け部に架設された本発明の梁構造覆蓋を取り外し、
当該覆蓋の梁の外面側に補強部材を重ね合わせて接合す
ることにより、補強された新たな覆蓋とするものであ
る。前記した本発明の梁構造であれば、将来の補強を視
野に入れた構造とされているので、覆蓋を容易に補強し
て再利用できる。また、前記した本発明の梁構造によれ
ば、梁材を箱状に一体的に接合して内部空間を設けてい
るため、比較的小さな断面積で大きな断面二次モーメン
トが得られ、曲げ剛性（ＥＩ）の向上が図られている。
この梁構造の梁に、本発明の補強方法によって補強部材
を接合することにより、断面二次モーメントを効果的に
増して曲げ剛性（ＥＩ）を一層向上させることができ
る。また、覆蓋の梁の内部側に補強部材を更に接合する
ことにより、補強された新たな覆蓋とすることもでき
る。Further, the present invention proposed at the same time proposes the above-mentioned method of reinforcing the cover of the present invention. That is,
Remove the beam structure cover of the present invention erected on the lid receiver,
The reinforcing member is overlapped and joined to the outer surface side of the beam of the cover to form a new reinforced cover. With the above-described beam structure of the present invention, since the structure is designed with a view to future reinforcement, the cover can be easily reinforced and reused. Further, according to the beam structure of the present invention described above, since the beam members are integrally joined in a box shape to provide the internal space, a large second moment of area can be obtained with a relatively small cross-sectional area, and the bending rigidity can be improved. (EI) is improved.
By joining the reinforcing member to the beam having this beam structure by the reinforcing method of the present invention, the second moment of area can be effectively increased, and the bending rigidity (EI) can be further improved. Further, by further joining a reinforcing member to the inside of the beam of the cover, a new reinforced cover can be obtained.
【００１６】[0016]
【発明の実施の形態】以下に図面を参照して本発明の実
施形態を説明する。尚、説明の便宜上、覆蓋の長手方向
を前後方向とし、覆蓋を隣接させる方向を左右方向とす
る。Embodiments of the present invention will be described below with reference to the drawings. For convenience of description, the longitudinal direction of the cover is referred to as the front-back direction, and the direction in which the cover is adjacent is referred to as the left-right direction.
【００１７】図１は本発明の梁構造覆蓋１，２を略中央
部を左右方向に切断した断面図で示したものである。覆
蓋１は、図１（ａ）に示すように、天板（面板）１０の
左右側部の裏面に主梁（梁）１１，１１を接合し、天板
１０の左右側縁１０ａから支持部材１２を幅ｄだけ突出
させて天板１０の裏面に接合している。また、主梁１１
同士の間に複数の小梁１３を掛け渡してその両端面を主
梁１１に接合し、主梁１１の内面には小梁１３の両端部
下面を支承するように補強梁１４が接合された梁構造と
されている。FIG. 1 is a cross-sectional view of the beam-structured covers 1 and 2 of the present invention, in which a substantially central portion is cut in the left-right direction. As shown in FIG. 1 (a), the cover 1 has main beams (beams) 11, 11 joined to the back surfaces of the left and right sides of a top plate (face plate) 10, and supports the support members from the left and right side edges 10 a of the top plate 10. 12 is joined to the back surface of the top plate 10 by protruding by the width d. Also, the main beam 11
A plurality of small beams 13 are bridged between them, and both end surfaces thereof are joined to the main beam 11, and a reinforcing beam 14 is joined to the inner surface of the main beam 11 so as to support the lower surfaces of both ends of the small beam 13. It has a beam structure.
【００１８】覆蓋２は、図１（ｂ）に示すように、天板
２０の左右側部の裏面に主梁２１，２１を天板２０の側
縁２０ａから幅Ｄだけ退入させて接合している。また、
主梁２１同士の間に複数の小梁２２を掛け渡してその両
端面を主梁２１に接合し、主梁２１の内面には小梁２２
の両端部下面を支承するように補強梁２３が接合された
梁構造とされている。As shown in FIG. 1 (b), the cover 2 is joined to the back surface of the top plate 20 by retreating the main beams 21 and 21 from the side edge 20a of the top plate 20 by a width D. ing. Also,
A plurality of small beams 22 are bridged between the main beams 21 and both end surfaces thereof are joined to the main beam 21.
And a beam structure in which reinforcing beams 23 are joined so as to support the lower surfaces of both ends of the beam.
【００１９】ここで、覆蓋２における主梁２１の退入幅
Ｄと、覆蓋１における支持部の突出幅ｄとの関係は、後
述する補強部材の厚さをｔとすると、（主梁退入幅）Ｄ
＞＝（支持部突出幅）ｄ＋（補強部材厚さ）ｔの関係を
満足する構造とされている。図１（ｃ）は、このような
構造の覆蓋１と覆蓋２とを交互に並べて架設した状態を
断面図で示している。Here, the relationship between the retreat width D of the main beam 21 in the cover 2 and the protruding width d of the support portion in the cover 1 is as follows, assuming that the thickness of the reinforcing member described later is t. Width) D
> = (Protrusion width of support portion) d + (thickness of reinforcing member) t. FIG. 1 (c) is a cross-sectional view showing a state where the cover 1 and the cover 2 having such a structure are alternately arranged and installed.
【００２０】覆蓋１と覆蓋２とを交互に架設すると、天
板１０の側縁１０ａと天板２０の側縁２０ａが突き合わ
され、覆蓋１０の支持部１２が覆蓋２の天板２０の側縁
を下方から支持する。このとき、支持部１２の側縁１２
ａと隣接する覆蓋２の主梁２１との間に（（主梁退入
幅）Ｄ−（支持部突出幅）ｄ）の幅の隙間を生じる点が
従来と異なっている。本発明の覆蓋１，２は、このよう
に、従来の覆蓋と強度的にも何ら異なることなく架設し
て用いられる。When the cover 1 and the cover 2 are alternately provided, the side edge 10a of the top plate 10 and the side edge 20a of the top plate 20 abut against each other, and the supporting portion 12 of the cover 10 is connected to the side edge of the top plate 20 of the cover 2. Is supported from below. At this time, the side edge 12 of the support portion 12
This is different from the related art in that a gap having a width of ((main beam retreat width) D- (supporting portion protrusion width) d) is generated between a and the main beam 21 of the adjacent cover 2. The lids 1 and 2 of the present invention are thus used by being installed without any difference in strength from the conventional lids.
【００２１】次に、この覆蓋１，２に補強を施す場合の
方法を図２を参照して説明する。まず、蓋受け部（不図
示）に架設された覆蓋１，２を順次取り外す。次いで、
図２（ａ）に示すように、覆蓋１の主梁１１の外面側に
補強部材として厚さｔを有する補強主梁１５を主梁１１
に重ね合わせて接合して改造補強した覆蓋１’を成す
る。同様に、図２（ｂ）に示すように、覆蓋２の主梁２
１の外面側に補強部材として厚さｔを有する補強主梁２
４を主梁２１に重ね合わせて接合して改造補強した覆蓋
２’を成する。この補強された覆蓋２’では、天板２０
の側縁２０ａから補強主梁２４が退入する幅が（（主梁
退入幅）Ｄ−（補強主梁の厚さ）ｔ）となる。尚、覆蓋
１の補強主梁１５は、支持部１２の側縁１２ａから突出
しない範囲の適宜の厚さのものを用いることができる。Next, a method for reinforcing the lids 1 and 2 will be described with reference to FIG. First, the lids 1 and 2 provided on the lid receiving portion (not shown) are sequentially removed. Then
As shown in FIG. 2A, a reinforcing main beam 15 having a thickness t is provided on the outer surface side of the main beam 11 of the cover 1 as a reinforcing member.
To form a modified cover 1 ′. Similarly, as shown in FIG.
1, a reinforcing main beam 2 having a thickness t as a reinforcing member on the outer surface side
4 is overlapped with the main beam 21 and joined to form a modified and reinforced cover 2 ′. In this reinforced cover 2 ′, the top plate 20
The width at which the main reinforcing beam 24 retreats from the side edge 20a is ((main beam retreat width) D- (thickness of the main reinforcing beam) t). Note that the reinforcing main beam 15 of the cover 1 can be of a suitable thickness in a range that does not protrude from the side edge 12 a of the support portion 12.
【００２２】このような改造された覆蓋１’，２’を並
べて架設すると、図２（ｃ）に示したように、覆蓋１’
の支持部の突出幅ｄよりも、隣接する覆蓋２’の補強主
梁２４が天板２０の側縁から退入する幅（Ｄ−ｔ）大き
い。このため、改造前と同様に天板１０，２０の側縁同
士を突き合わせた形で架設することが可能である。この
ように、覆蓋２における主梁２１の天板２０の側縁から
の退入幅を、予め補強部材の厚さだけ余分にとった構造
としているので、主梁２１に補強主梁２４を接合するだ
けで容易に補強することができ、これによって充分な曲
げ剛性を得ている。尚、本実施形態では主梁２１の厚さ
が１５ｍｍ〜２０ｍｍ程度の板材を用いたが、補強主梁
２４についても主梁２１と同程度の厚さの板材を用いて
充分な補強強度を得ることができる。When such modified lids 1 ', 2' are arranged and installed side by side, as shown in FIG.
The width (Dt) at which the reinforcing main beam 24 of the adjacent cover 2 ′ retreats from the side edge of the top plate 20 is larger than the protruding width d of the support portion. For this reason, it is possible to construct the top plates 10 and 20 in such a manner that the side edges of the top plates 10 and 20 abut each other as in the case before the remodeling. As described above, the retreat width of the main beam 21 from the side edge of the top plate 20 in the cover 2 is configured to be extra by the thickness of the reinforcing member in advance, so that the reinforcing main beam 24 is joined to the main beam 21. It can be easily reinforced simply by doing so, thereby obtaining sufficient bending rigidity. In the present embodiment, a plate having a thickness of the main beam 21 of about 15 mm to 20 mm is used. However, a sufficient reinforcing strength is obtained for the reinforcing main beam 24 by using a plate having the same thickness as the main beam 21. be able to.
【００２３】また、図２（ｄ）に示すように、覆蓋１に
おいて、主梁１１の内面側の補強梁１４に、更に補強梁
１６を接合して覆蓋１’としたり、或いは、覆蓋２にお
いて、主梁２１の内面側の補強梁２３に、更に補強梁２
５を接合して覆蓋２’とすることにより、一層強度を向
上させた補強方法も採ることができる。尚、この補強方
法では、主梁１１に対して補強主梁１５又は補強梁１６
のいずれか一方或いは双方を接合する方法が採れる。同
様に、主梁２１についても、補強主梁２４又は補強梁２
５のいずれか一方、或いは双方を接合する方法を採るこ
とができる。As shown in FIG. 2D, in the cover 1, a reinforcing beam 16 is further joined to the reinforcing beam 14 on the inner surface side of the main beam 11 to form a cover 1 ′, or in the cover 2, The reinforcing beam 23 on the inner side of the main beam 21 is further
By joining the cover 5 to the cover 2 ′, a reinforcing method with further improved strength can be adopted. In this reinforcing method, the reinforcing beam 15 or the reinforcing beam 16 is
And a method of joining either one or both. Similarly, for the main beam 21, the reinforcing main beam 24 or the reinforcing beam 2
5 or a method of joining both of them.
【００２４】前記した本実施形態の覆蓋１，２は天板や
梁部材の全てについてガラス繊維強化プラスチック発泡
体の一種であるガラス長繊維強化硬質ウレタン発泡体を
素材とした板材で成している。また、改造時の補強主梁
２４にも同様にガラス繊維強化プラスチック発泡体の板
材を用いることが好ましい。The lids 1 and 2 of this embodiment are made of a plate material made of a long glass fiber reinforced hard urethane foam, which is a kind of glass fiber reinforced plastic foam, for all the top plates and beam members. . It is also preferable to use a glass fiber reinforced plastic foam plate for the reinforcement main beam 24 at the time of remodeling.
【００２５】発泡体における発泡樹脂の種類としては、
例えば、ウレタン樹脂、エポキシ樹脂、ビニルエステル
樹脂、不飽和ポリエステル樹脂、フェノール樹脂などの
熱硬化樹脂であっても硬質のものが好適に使用される。
尚、圧縮強度の向上や低コスト化を図るために、発泡樹
脂中に炭酸カルシウム、石膏、タルク、水酸化アルミニ
ウム、クレーなどの無機充填材や、シラスバルーン、パ
ーライト、ガラスバルーンなどの軽量骨材を添加しても
良い。As the type of the foamed resin in the foam,
For example, a hard thermosetting resin such as a urethane resin, an epoxy resin, a vinyl ester resin, an unsaturated polyester resin, and a phenol resin is preferably used.
In addition, in order to improve the compressive strength and reduce the cost, inorganic fillers such as calcium carbonate, gypsum, talc, aluminum hydroxide, and clay in the foamed resin, and lightweight aggregates such as shirasu balloons, pearlite, and glass balloons May be added.
【００２６】また、発泡体を補強する繊維としては、例
えば、ガラス繊維、炭素繊維、金属繊維などの無機質繊
維、天然繊維、合成樹脂などの有機質繊維のいずれであ
っても良いが、強度や経済性の面からガラス繊維が適し
ている。ガラス繊維としては、ガラスロービング、ガラ
スロービングクロス、ガラスマット、コンティニュアス
ストランドマットなどの形態のものが挙げられる。この
繊維は、単独で使用しても良いし、二層以上積層して使
用しても良く、また、長繊維と短繊維を混ぜて使用して
も良い。尚、ガラス長繊維を長手方向に引き揃えて補強
繊維としたガラス長繊維強化硬質ウレタン発泡体（例え
ば、積水化学工業株式会社製 商品名「エスロンネオラ
ンバーＦＦＵ」など）を採用するのが、軽量化、耐久性
および加工性の確保のために最も好ましい。The fiber for reinforcing the foam may be any of inorganic fibers such as glass fiber, carbon fiber and metal fiber, and organic fibers such as natural fiber and synthetic resin. Glass fiber is suitable in terms of properties. Examples of the glass fiber include a glass roving, a glass roving cloth, a glass mat, and a continuous strand mat. These fibers may be used alone, or may be used by laminating two or more layers, or a mixture of long fibers and short fibers may be used. In addition, it is lightweight to adopt a long glass fiber reinforced hard urethane foam (for example, product name “Eslon Neo Lumber FFU” manufactured by Sekisui Chemical Co., Ltd.) which is used as a reinforcing fiber by aligning long glass fibers in the longitudinal direction. It is the most preferable for ensuring the durability, durability and workability.
【００２７】前記したように、本実施形態の覆蓋１，２
ではガラス長繊維強化硬質ウレタン発泡体を用いて成し
ている。則ち、定尺のガラス長繊維強化硬質ウレタン発
泡体の原板から、覆蓋の構成部材（天板、支持部材、横
梁部材、縦梁部材など）を切り出す場合に、全ての構成
部材について繊維方向がその部材の長手方向になるよう
にしている。切り出した構成部材は、エポキシ接着剤な
どで接合して組み立てており、各構成部材の繊維方向が
長手方向に揃えられていることで、覆蓋自体の強度が増
すと共に軽量化を実現している。As described above, the lids 1 and 2 of this embodiment
Is formed using a long glass fiber reinforced hard urethane foam. That is, when cutting out the constituent members of the cover (top plate, support member, horizontal beam member, vertical beam member, etc.) from the original plate of the long glass fiber reinforced hard urethane foam of a fixed length, the fiber direction is changed for all the component members. The longitudinal direction of the member is set. The cut-out components are assembled by bonding with an epoxy adhesive or the like, and the fiber direction of each component is aligned in the longitudinal direction, thereby increasing the strength of the cover itself and reducing the weight.
【００２８】前記した実施形態では、構造の異なる覆蓋
１，２を例に挙げて示したが、同一構造の覆蓋を複数並
べて架設するようにした形態をとることもできる。図３
はこのような本発明の別の実施形態の覆蓋３を長手方向
の略中央部で切断した断面図で示したものである。この
覆蓋３は、前記した覆蓋１の右側部分と覆蓋２の左側部
分とを合体させたような構造とされている。則ち、図３
（ａ）に示すように、天板３０の左右側部の裏面に主梁
３１，３１を接合し、左側の主梁３１は左側縁３０ｂか
らＤだけ退入させている。一方、天板３０の右側縁３０
ａから支持部材３２を幅ｄだけ突出させて天板３０の裏
面に接合している。そして、主梁３１同士の間に複数の
小梁３３を掛け渡してその両端面を主梁３１に接合し、
主梁３１の内面には小梁３３の両端部下面を支承するよ
うに補強梁３４が接合された梁構造とされている。In the above-described embodiment, the lids 1 and 2 having different structures have been described as an example. However, a form in which a plurality of lids having the same structure are arranged and installed may be adopted. FIG.
Is a cross-sectional view of the cover 3 according to another embodiment of the present invention cut at a substantially central portion in the longitudinal direction. The cover 3 has a structure in which the right portion of the cover 1 and the left portion of the cover 2 are combined. That is, FIG.
As shown in (a), the main beams 31, 31 are joined to the left and right side back surfaces of the top plate 30, and the left main beam 31 is retracted by D from the left edge 30b. On the other hand, the right edge 30 of the top plate 30
The support member 32 is protruded by a width d from “a” and is joined to the back surface of the top plate 30. Then, a plurality of small beams 33 are stretched between the main beams 31 and both end surfaces thereof are joined to the main beam 31,
The inner surface of the main beam 31 has a beam structure in which reinforcing beams 34 are joined so as to support the lower surfaces of both ends of the small beam 33.
【００２９】この覆蓋３を並べて架設すると、図３
（ｂ）に示すように、天板３０の側縁３０ａと隣接する
天板３０の側縁３０ｂが突き合わされ、覆蓋３０の支持
部３２が隣接する覆蓋３の天板３０の右側縁を下方から
支持する。このとき、支持部１２の側縁３２ａと隣接す
る覆蓋３の主梁３１との間に（Ｄ−ｄ）の幅の隙間を生
じるようにされている。When the lids 3 are installed side by side,
As shown in (b), the side edge 30a of the top plate 30 and the side edge 30b of the adjacent top plate 30 are abutted, and the support portion 32 of the cover 30 is moved from below to the right edge of the top plate 30 of the adjacent cover 3 from below. To support. At this time, a gap having a width of (D-d) is generated between the side edge 32a of the support portion 12 and the main beam 31 of the adjacent cover 3.
【００３０】次に、この覆蓋３を補強する方法を図４を
参照して説明する。まず、蓋受け部（不図示）に架設さ
れた覆蓋３を順次取り外す。次いで、図４（ａ）に示す
ように、覆蓋３の主梁３１の外面側に補強部材として補
強主梁３５，３６を主梁３１に重ね合わせて接合し、補
強した覆蓋３’とする。これにより、主梁３１を容易に
補強して充分な曲げ剛性（ＥＩ）を得ている。尚、補強
主梁３５は補強主梁３６よりも支持部材３２の厚さだけ
高さを短くしている。Next, a method of reinforcing the cover 3 will be described with reference to FIG. First, the cover 3 provided on the cover receiving portion (not shown) is sequentially removed. Next, as shown in FIG. 4A, reinforcing main beams 35 and 36 as a reinforcing member are overlapped on and joined to the outer surface of the main beam 31 of the cover 3 on the main beam 31 to form a reinforced cover 3 ′. Thereby, the main beam 31 is easily reinforced and a sufficient bending rigidity (EI) is obtained. The reinforcing main beam 35 is shorter than the reinforcing main beam 36 by the thickness of the support member 32.
【００３１】このような改造された覆蓋３’を並べて架
設すると、図４（ｂ）に示したように、覆蓋３’の支持
部の突出幅ｄよりも、隣接する覆蓋３’の補強主梁３４
が天板３０の側縁から退入する幅（Ｄ−ｔ）が大きい。
このため、改造前と同様に天板３０の側縁３０ａ，３０
ｂ同士を突き合わせた形で架設することが可能である。
尚、本実施形態では、前記覆蓋３および補強主梁３５，
３６についてもガラス長繊維強化硬質ウレタン発泡体を
用いて成した。When such modified lids 3 'are arranged side by side, as shown in FIG. 4B, the reinforcing main beam of the adjacent lid 3' is larger than the protruding width d of the support portion of the lid 3 '. 34
Is large from the side edge of the top plate 30 (Dt).
For this reason, the side edges 30a, 30
It is possible to erection in the form where b was abutted.
In this embodiment, the cover 3 and the reinforcing main beam 35,
36 was also made using a long glass fiber reinforced hard urethane foam.
【００３２】[0032]
【発明の効果】本発明の覆蓋によれば、通常の覆蓋と同
様に用いることができる上、補強の必要が生じた場合に
は容易に補強して再利用できるので、資源を有効に活用
できると共に省コスト化を図ることができる。According to the cover of the present invention, the cover can be used in the same manner as a normal cover, and when it is necessary to reinforce it, it can be easily reinforced and reused, so that resources can be used effectively. At the same time, cost can be reduced.
【００３３】[0033]
【図面の簡単な説明】[Brief description of the drawings]
【図１】（ａ），（ｂ）は本発明の実施形態に係る覆蓋
の断面図であり、（ｃ）は（ａ），（ｂ）で示した覆蓋
を交互に架設した状態を示す断面図である。1 (a) and 1 (b) are cross-sectional views of a cover according to an embodiment of the present invention, and FIG. 1 (c) is a cross-section showing a state where the cover shown in FIGS. FIG.
【図２】（ａ），（ｂ）は図１に示した覆蓋の改造後の
断面図、（ｃ）は（ａ），（ｂ）で示した覆蓋を交互に
架設した状態を示す断面図、（ｄ）は（ｃ）で示した覆
蓋に更に補強梁を接合した状態を示す断面図である。2A and 2B are cross-sectional views of the cover shown in FIG. 1 after modification, and FIG. 2C is a cross-sectional view showing a state where the cover shown in FIGS. (D) is a sectional view showing a state in which a reinforcing beam is further joined to the cover shown in (c).
【図３】（ａ）は本発明の別の実施形態に係る覆蓋の断
面図であり、（ｂ）は（ａ）で示した覆蓋を交互に架設
した状態を示す断面図である。3A is a cross-sectional view of a cover according to another embodiment of the present invention, and FIG. 3B is a cross-sectional view illustrating a state in which the cover shown in FIG.
【図４】（ａ）は図３で示した覆蓋の改造後の断面図で
あり、（ｂ）は（ａ）で示した覆蓋を交互に架設した状
態を示す断面図である。4A is a cross-sectional view of the cover shown in FIG. 3 after remodeling, and FIG. 4B is a cross-sectional view showing a state in which the cover shown in FIG.
【図５】従来の覆蓋の架設状況を示す斜視図である。FIG. 5 is a perspective view showing a erection state of a conventional cover.
【図６】従来の覆蓋を並べて架設した状態を示す断面図
である。FIG. 6 is a cross-sectional view showing a state where conventional cover lids are arranged and installed.
【図７】支持部を有した従来の覆蓋に補強主梁を接合し
た状態を示す断面図である。FIG. 7 is a cross-sectional view showing a state in which a reinforcing main beam is joined to a conventional cover having a support portion.
【図８】支持部を有しない従来の覆蓋に補強主梁を接合
した状態を示す断面図である。FIG. 8 is a cross-sectional view showing a state in which a reinforcing main beam is joined to a conventional cover having no support portion.
１０，２０，３０ 面板（天板） １１，２１，３１ 梁（主梁） １，２，３，１’，２’，３’ 梁構造覆蓋 １０ａ，２０ａ 天板の左右側縁 １２ 支持部 Ｄ 主梁の退入幅 ｄ 支持部の突出幅 １５，２４，３５，３６ 補強部材（補強主梁） １６，２５ 補強部材（補強梁） 10, 20, 30 Face plate (top plate) 11, 21, 31 Beam (main beam) 1, 2, 3, 1 ', 2', 3 'Beam structure cover 10a, 20a Left and right side edges of top plate 12 Support part D Retreat width of main beam d Projection width of support part 15, 24, 35, 36 Reinforcement member (reinforcement main beam) 16, 25 Reinforcement member (reinforcement beam)
Claims (5)
に離間する蓋受け部に左右方向に複数並べて架設される
梁構造覆蓋であって、 隣接する覆蓋の面板の左右側縁同士は突き合わされ、隣
接する一方の覆蓋には、他方の覆蓋の面板の側縁を下方
から支持する支持部が設けられた構成とされており、 前記支持部に隣接して支持される面板の側縁から梁が退
入する幅を、前記支持部が面板の側縁から突出する幅よ
りも所定長さだけ大きくしたことを特徴とする梁構造覆
蓋。1. A beam-structured cover which is provided with beams on the left and right side back surfaces of a face plate, and which is erected in a plurality of sideways in a left-right direction on a cover receiving portion which is separated from front to back, wherein left and right side edges of face plates of adjacent cover lids are provided. And a supporting portion for supporting the side edge of the face plate of the other cover from below is provided on one of the adjacent cover lids, and the side of the face plate supported adjacent to the support portion is provided. A beam structure cover, wherein a width at which the beam retreats from the edge is made larger by a predetermined length than a width at which the support portion protrudes from a side edge of the face plate.
側縁から梁が退入する幅が、少なくとも前記支持部が面
板の側縁から突出する幅に前記梁外面側に接合可能な補
強部材の厚さを加えた幅であることを特徴とする請求項
１に記載の梁構造覆蓋。2. A beam retreating from a side edge of a face plate supported adjacent to the support portion can be joined to the beam outer surface side at least to a width that the support portion protrudes from a side edge of the face plate. The beam structure cover according to claim 1, wherein the width is a width obtained by adding the thickness of the reinforcing member.
強化プラスチック発泡体から成ることを特徴とする請求
項１または２に記載の梁構造覆蓋。3. The beam structure cover according to claim 1, wherein the cover and the reinforcing member are made of glass fiber reinforced plastic foam.
いずれか１項に記載の梁構造覆蓋を取り外し、当該覆蓋
の梁の外面側に補強部材を重ね合わせて接合することに
より、補強された新たな覆蓋とすることを特徴とする梁
構造覆蓋の補強方法。4. The beam structure cover according to any one of claims 1 to 3, which is installed on the cover receiving portion, and a reinforcing member is overlapped and joined to an outer surface side of the beam of the cover. A method for reinforcing a beam-structured cover, characterized in that the cover is a new reinforced cover.
いずれか１項に記載の梁構造覆蓋を取り外し、当該覆蓋
の梁の内部側に補強部材を接合することにより、補強さ
れた新たな覆蓋とすることを特徴とする梁構造覆蓋の補
強方法。5. The reinforcing member is reinforced by removing the beam structure cover according to any one of claims 1 to 4 provided on the cover receiving portion and joining a reinforcing member to the inside of the beam of the cover. A method for reinforcing a beam-structured cover, characterized in that the cover is a new cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000183400A JP2002002878A (en) | 2000-06-19 | 2000-06-19 | Beam structure cover lid and method for reinforcing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000183400A JP2002002878A (en) | 2000-06-19 | 2000-06-19 | Beam structure cover lid and method for reinforcing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002002878A true JP2002002878A (en) | 2002-01-09 |
Family
ID=18683992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000183400A Withdrawn JP2002002878A (en) | 2000-06-19 | 2000-06-19 | Beam structure cover lid and method for reinforcing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002002878A (en) |
-
2000
- 2000-06-19 JP JP2000183400A patent/JP2002002878A/en not_active Withdrawn
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