JPS6033124Y2 - Road joint expansion device - Google Patents

Road joint expansion device

Info

Publication number
JPS6033124Y2
JPS6033124Y2 JP4118981U JP4118981U JPS6033124Y2 JP S6033124 Y2 JPS6033124 Y2 JP S6033124Y2 JP 4118981 U JP4118981 U JP 4118981U JP 4118981 U JP4118981 U JP 4118981U JP S6033124 Y2 JPS6033124 Y2 JP S6033124Y2
Authority
JP
Japan
Prior art keywords
horizontal
protective layer
road joint
concrete
joint expansion
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.)
Expired
Application number
JP4118981U
Other languages
Japanese (ja)
Other versions
JPS57156505U (en
Inventor
元之助 新井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to JP4118981U priority Critical patent/JPS6033124Y2/en
Publication of JPS57156505U publication Critical patent/JPS57156505U/ja
Application granted granted Critical
Publication of JPS6033124Y2 publication Critical patent/JPS6033124Y2/en
Expired legal-status Critical Current

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  • Road Paving Structures (AREA)
  • Bridges Or Land Bridges (AREA)

Description

【考案の詳細な説明】 本考案は、橋梁、高架道路に構築する道路継目伸縮装置
に関する。
[Detailed Description of the Invention] The present invention relates to a road joint expansion and contraction device constructed on bridges and elevated roads.

□従来、降雪量の多い地域に構築さ
れる道路継目伸縮装置の一例として、第10−・図に示
す如く床版a、 aの端部に切欠段部す、 bを形成し
、両切欠設部中央に縦板Ct cを対設して該縦板の背
部にコンクリートdを打設し、縦板Cおよびコンクリ−
)dの上に合成樹脂あ保護層eを形成することにより、
除雪車を走行させる際にグレーダの刃が縦板Cに直接当
らないようにして該縦板の破損を防止しているものがあ
るが、施工に長時間を要するという問題がある。
□ Conventionally, as an example of a road joint expansion/contraction device constructed in an area with heavy snowfall, as shown in Figure 10, a notch stepped portion S and b are formed at the end of the floor slab a, and both notches are installed. A vertical plate Ctc is installed oppositely in the center of the section, and concrete d is poured on the back of the vertical plate.
) By forming a synthetic resin protective layer e on d,
There is a method that prevents damage to the vertical board C by preventing the blade of the grader from directly hitting the vertical board C when the snowplow is running, but there is a problem in that it takes a long time to install.

すなわち、施工に際して、縦板Cを固定するコンクリー
トdを打設した直後では該コンクリートは多量の水分を
含んでいることから保護層eを構成する合成樹脂材を打
設しても保護層eとコン1クリートdとの充分な接着が
できない。
That is, immediately after pouring the concrete d for fixing the vertical plate C during construction, the concrete contains a large amount of water, so even if the synthetic resin material constituting the protective layer e is poured, the protective layer e will not be formed. Sufficient adhesion with concrete d is not possible.

従って、接着強度を高めるにはコンクリートdの養生が
終わるまで、例えば普通セメントコンクリートでは28
日程度、早強セメントコンクリートでも4〜5日の養生
期間が経過するまで合成樹脂材を打設することができな
い。
Therefore, in order to increase the adhesive strength, it is necessary to wait until the curing of concrete d is completed, for example, 28
Synthetic resin materials cannot be placed until a curing period of 4 to 5 days has passed even for early-strength cement concrete.

しかしながら、゛従来は工期短縮をはかるためコンクリ
ート打設後、コンクリート表面をガスバーナ等で強制乾
燥させてからすぐ合成樹脂材を打設して保護層eが形成
されており、乾燥が充分でないため保護層eとフンクリ
賜トdの接着が充分でなく、該保護層の剥離が割れ、ず
れを招くなど耐久性に問題があった。
However, in the past, in order to shorten the construction period, after pouring concrete, the surface of the concrete was forcibly dried using a gas burner, etc., and then a synthetic resin material was immediately poured to form a protective layer e. There were problems in durability, such as insufficient adhesion between layer e and layer d, and peeling of the protective layer caused cracking and displacement.

゛ ・ □本考案は、かかる点に鑑み、道路継
目部に1対の横基板を間隙を存して対設し、該横基板の
上面に保護層を形成することにより、パ従来のようなコ
ンクリートの養生を待つことな′く短時間で施工を完了
することができ、かつ耐久性を向上せしめた道路継目伸
縮装置を提供することを目的とする。
゛ ・ □ In view of this, the present invention provides a pair of horizontal substrates facing each other with a gap between them at the road joint, and forms a protective layer on the upper surface of the horizontal substrates, thereby eliminating the need for conventional parking To provide a road joint expansion/contraction device which can complete construction in a short time without waiting for concrete to cure and has improved durability.

以下、本考案の構成を実施例につき図面に基づいて説明
する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of the present invention will be described below with reference to the drawings.

□1は道路継目伸縮装置
で、□遊間2を存して相対する床版3,3の端部に切欠
段部4,4を設け、両切欠設部4,4の中央部にl対の
継手部材5゜5を間隙6を存して対設し、該切欠段部に
後打コンクリート7を打設したものである。
□ 1 is a road joint expansion and contraction device, □ cut-out step portions 4, 4 are provided at the ends of the floor slabs 3, 3 facing each other with a gap 2, and a pair of cut-out steps 4, 4 are provided in the center of both cut-out portions 4, 4. Joint members 5.degree. 5 are placed opposite each other with a gap 6 between them, and post-cast concrete 7 is poured into the notch step.

継手部材5は、横基板11の上面に保護層12を形成し
たもので、横基板11の下に設けた一連のシール板13
とともにアンカーボルト14にて後打コンクリート7に
固定されている。
The joint member 5 has a protective layer 12 formed on the upper surface of the horizontal substrate 11, and a series of seal plates 13 provided below the horizontal substrate 11.
It is also fixed to post-cast concrete 7 with anchor bolts 14.

横基板11は、鋼板、プラスチック板、FRPI反、コ
ンクリート板等の剛性板にて形成されており、厚さは1
0〜3−程度で゛ある。
The horizontal board 11 is made of a rigid plate such as a steel plate, a plastic plate, an FRPI plate, or a concrete plate, and has a thickness of 1.
It is about 0 to 3-.

保護層12は、エポキシ樹脂等の合成樹脂、樹脂モルタ
ル、樹脂コンクリート、セメントコンクリートなどの除
雪車のグレーダの刃で掻き取り得る材質、あるいは走行
車両のタイヤ等で摩耗され得る材質で形成されており、
上面が路面と面一もしくは路面よりも若干低く設置され
ている。
The protective layer 12 is made of a material that can be scraped off with a grader blade of a snowplow, such as synthetic resin such as epoxy resin, resin mortar, resin concrete, or cement concrete, or a material that can be worn away by the tires of a traveling vehicle. ,
The top surface is installed flush with the road surface or slightly lower than the road surface.

なお、横基板11わよび保護層12の端面15は、車両
走行性を高めるため波形としたが、直線状にする場合も
ある。
Note that although the horizontal substrate 11 and the end surface 15 of the protective layer 12 are waveformed in order to improve vehicle running performance, they may also be linear.

継手部材5の背部の後打コンクリート7には、除雪車の
グレーダによる横基板11の破損を防止する引掻防止板
16が埋設されている。
A scratch prevention plate 16 is embedded in the post-cast concrete 7 at the back of the joint member 5 to prevent the horizontal substrate 11 from being damaged by a grader of a snowplow.

引掻防止板16は、横基板側の内端部上端縁が該横基板
の上面高さと略同−で、該内端部より中央部へ漸次高く
なり、該中央部より外端部は下方へ傾斜して該外端部が
横基板上面よりも低く形成されており、道路幅員方向に
200〜100−の間隔をおいて連結筋17にて連結さ
れている。
The scratch prevention plate 16 has an upper edge of the inner end on the horizontal board side that is approximately the same height as the top surface of the horizontal board, gradually becomes higher from the inner end toward the center, and has an outer end lower than the center. The outer ends are formed to be lower than the upper surface of the horizontal substrates, and are connected by connecting bars 17 at intervals of 200 to 100 mm in the road width direction.

なお、第1図中、18は舗装、19は通し筋である。In addition, in FIG. 1, 18 is the pavement, and 19 is the through line.

施工に際しては、保護層12を予め工場など施工現場以
外の場所で横基板11に固着して継手部材′5を形成し
ておき、該継手部材を施工現場で道路継目部に設置する
方法、あるいは横基板11を先に設置しておき、施工現
場で保護層12を形成する方法のいずれでも採用するこ
とができる。
In construction, the protective layer 12 is fixed to the horizontal substrate 11 in advance at a place other than the construction site such as a factory to form the joint member '5, and the joint member is installed at the road joint at the construction site, or Any method may be adopted in which the horizontal substrate 11 is installed first and the protective layer 12 is formed at the construction site.

上記構造において、除雪車が通過する際、グレーダの刃
は保護層12の上を掻き進み横基板11には直接当たる
ことがないため横基板11の破損が防止され、保護層1
2がグレーダにて決られても該保護層を構成するエポキ
シ樹脂等を用いて簡単に修復することができる。
In the above structure, when the snowplow passes, the blade of the grader scrapes over the protective layer 12 and does not directly hit the horizontal substrate 11, so damage to the horizontal substrate 11 is prevented, and the protective layer 12 is prevented from being damaged.
Even if 2 is determined by a grader, it can be easily repaired using an epoxy resin or the like constituting the protective layer.

また、保護層12および抜打コンクリート7が摩耗した
場合でもグレーダの刃は引掻防止板16の上を通過する
ため横基板11が決られることがなく、また横基板11
に大きな衝撃が加わることもない。
Further, even if the protective layer 12 and the punched concrete 7 are worn out, the grader blade passes over the scratch prevention plate 16, so the horizontal substrate 11 is not determined, and the horizontal substrate 11
There is no need for any major shock to occur.

なお、継手部材5は第3図に示す如く端面の波形を大き
くして噛合せしめてもよく、また、横基板11は第4図
に示す如く保護層12よりも薄く、例えば保護層20〜
401111に対して10〜2Cjrm程度にする場合
もあり、さらに第5図に示す如く横基板11には遊間中
心よりも外側の端部あるいは鎖線で示す如く内側に1条
もしくは複数条の突条20を遊間2と平行に設けて保護
層12のずれ止めとなす場合もある。
The joint member 5 may have an enlarged waveform on the end face for engagement as shown in FIG. 3, and the horizontal substrate 11 is thinner than the protective layer 12 as shown in FIG.
401111 may be about 10 to 2 Cjrm, and as shown in FIG. 5, the horizontal board 11 is provided with one or more protrusions 20 at the outer end of the center of the gap or on the inner side as shown by the chain line. In some cases, the protective layer 12 is provided in parallel with the clearance 2 to prevent the protective layer 12 from slipping.

また、第6図乃至第9図に示す如く、横基板11に橋長
方向のリブ21,22.23を設けて横基板11、特に
該横基板の突出部24の補強をなすとともに保護層12
と横基板11との接着面積を広くして接着強度を高める
こともできる。
Further, as shown in FIGS. 6 to 9, ribs 21, 22, 23 in the bridge length direction are provided on the horizontal substrate 11 to reinforce the horizontal substrate 11, especially the protruding portion 24 of the horizontal substrate, and to protect the protective layer 12.
It is also possible to increase the bonding strength by increasing the bonding area between the substrate 11 and the horizontal substrate 11.

なお、第7図に示すリブ21は突条20より突出部24
へ向けて漸次低く傾斜せしめたものであり、第8図に示
すリブ22はその全長にわたって同じ高さにしたもので
あり、また第9図に示すものは突条25およびリブ23
に鉄筋を適用したものである。
Note that the rib 21 shown in FIG.
The rib 22 shown in FIG. 8 has the same height over its entire length, and the rib 22 shown in FIG.
Reinforcing steel is applied to the structure.

因に、本考案は、鋼桁の上に床版3を形成した鋼橋以外
、PC桁橋、コンクリート桁橋、鋼床版橋においても上
記実施例と同様に適用することができる。
Incidentally, the present invention can be applied to PC girder bridges, concrete girder bridges, and steel deck bridges in the same manner as in the above embodiments, in addition to steel bridges in which the deck slabs 3 are formed on steel girders.

以上のように、本考案によれば、降雪量の多い地方の道
路橋に適用した場合、グレーダの刃による損傷は保護層
にとどまり、横基板には達しないため伸縮装置の致命的
な破損が防止され、また、保護層を横基板の上に設けた
接着性の高い構造であるため耐久性が良く、かつ従来の
ようなコンクリートの乾燥および養生を待つことなく短
時間で施工を完了することができるという優れた効果が
得られる。
As described above, according to the present invention, when applied to road bridges in regions with heavy snowfall, damage caused by the grader blade is limited to the protective layer and does not reach the horizontal substrate, resulting in fatal damage to the expansion device. In addition, it has a highly adhesive structure with a protective layer on the horizontal substrate, so it is highly durable, and construction can be completed in a short time without waiting for the concrete to dry and cure as required in the conventional method. The excellent effect of being able to do this can be obtained.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図乃至第9図は本考案の実施態様を例示し、第1図
は道路継目部の横長方向断面図、第2図は同後打コンク
リート打設前の平面図、第3図乃至第9図はそれぞれ継
手部材の他の例を示すもので、第3図は平面図、第4図
および第5図は橋長方向断面図、第6図は一部切欠いた
平面図、第7図乃至第9図は一部切欠いた横長方向断面
図、第10図は従来例を示す一部断面斜視図である。 1・・・・・・道路継目伸縮装置、2・・・・・・遊間
、3・・・・・・床版、4・・・・・・切欠段部、15
・・・・・・継手部材、6・・・・・・間隙、7・・・
・・・後打コンクリート、11・・・・・・横基板、1
2・・・・・・保護層、13・・・・・ツール板、14
・・・・・・アンカーボルト、15・・・・・・端面、
16・・・・・・引掻防止板、 17・・・・・・連結筋、 18・・・・・・舗装、 19・・・ ・・・通し筋、 20゜ 25・・・・・・突条、 21゜ 22゜ 3・・・・・・リブ、 24・・・・・・突出部。
Figures 1 to 9 illustrate embodiments of the present invention, with Figure 1 being a cross-sectional view in the horizontal direction of a road joint, Figure 2 being a plan view before pouring concrete, and Figures 3 to 9 being a cross-sectional view of the joint in the horizontal direction. 9 shows other examples of joint members, FIG. 3 is a plan view, FIGS. 4 and 5 are sectional views in the bridge length direction, FIG. 6 is a partially cutaway plan view, and FIG. 7 9 to 9 are partially cutaway sectional views in the horizontal direction, and FIG. 10 is a partially sectional perspective view showing a conventional example. DESCRIPTION OF SYMBOLS 1... Road joint expansion and contraction device, 2... Play space, 3... Floor slab, 4... Notch step, 15
......Joint member, 6...Gap, 7...
...Post-cast concrete, 11...Horizontal substrate, 1
2... Protective layer, 13... Tool board, 14
...Anchor bolt, 15...End face,
16...Scratch prevention plate, 17...Connection bar, 18...Pavement, 19...Threading bar, 20゜25... Projection, 21゜22゜3...Rib, 24...Protrusion.

Claims (1)

【実用新案登録請求の範囲】 (1)道路継目部の週間を存して相対する床版の端部に
それぞれ横基板が間隙を存して固定され、該横基板の上
にエポキシ樹脂、樹脂モルタル、樹脂コンクリートなど
の除雪グレーダの刃により掻き取り得る材質の保護層が
形成されていることを特徴とする道路継目伸縮装置。 (2)横基板および保護層は、対向端面が波形である実
用新案登録請求の範囲第1項に記載の道路継目伸縮装置
。 □(3) 横基板は、上面に突条が遊間
と平行方向に設けられている実用新案登録請求の範囲第
1項または第2項に記載の道路継目伸縮装置。 (4)横基板は、上面に横長方向のリブが設けられてい
る実用新案登録請求の範囲第1項乃至第3項のいずれか
に記載の道路継目伸縮装置1
[Claims for Utility Model Registration] (1) Horizontal substrates are fixed to the opposite ends of the floor slabs with a gap between them at the road joint, and epoxy resin is applied onto the horizontal substrates. A road joint expansion/contraction device characterized by forming a protective layer of a material such as mortar or resin concrete that can be scraped off with the blade of a snow removal grader. (2) The road joint expansion/contraction device according to claim 1, wherein the lateral substrate and the protective layer have opposing end surfaces that are corrugated. □(3) The road joint expansion and contraction device according to claim 1 or 2, wherein the horizontal substrate has a protrusion on the upper surface in a direction parallel to the clearance. (4) The road joint expansion and contraction device 1 according to any one of claims 1 to 3 of the utility model registration claim, wherein the horizontal substrate is provided with ribs in the horizontal direction on the upper surface.
JP4118981U 1981-03-23 1981-03-23 Road joint expansion device Expired JPS6033124Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4118981U JPS6033124Y2 (en) 1981-03-23 1981-03-23 Road joint expansion device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4118981U JPS6033124Y2 (en) 1981-03-23 1981-03-23 Road joint expansion device

Publications (2)

Publication Number Publication Date
JPS57156505U JPS57156505U (en) 1982-10-01
JPS6033124Y2 true JPS6033124Y2 (en) 1985-10-03

Family

ID=29838275

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4118981U Expired JPS6033124Y2 (en) 1981-03-23 1981-03-23 Road joint expansion device

Country Status (1)

Country Link
JP (1) JPS6033124Y2 (en)

Also Published As

Publication number Publication date
JPS57156505U (en) 1982-10-01

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