JPH0415325B2 - - Google Patents
Info
- Publication number
- JPH0415325B2 JPH0415325B2 JP27483287A JP27483287A JPH0415325B2 JP H0415325 B2 JPH0415325 B2 JP H0415325B2 JP 27483287 A JP27483287 A JP 27483287A JP 27483287 A JP27483287 A JP 27483287A JP H0415325 B2 JPH0415325 B2 JP H0415325B2
- Authority
- JP
- Japan
- Prior art keywords
- semi
- key
- plate
- cylindrical body
- hole
- 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
Links
- 230000005540 biological transmission Effects 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 238000009415 formwork Methods 0.000 description 1
- 239000002990 reinforced plastic Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Road Paving Structures (AREA)
Description
【発明の詳細な説明】
（発明が属する技術分野）
本発明は、道路とか空港の誘導路、滑走路のよ
うな重車両が載荷する区域の舗装を構成するコン
クリートスラブの伸縮目地やクラツクの位置に設
置するせん断力伝達具に関する。Detailed Description of the Invention (Technical field to which the invention pertains) The present invention relates to the location of expansion joints and cracks in concrete slabs that constitute the pavement of areas where heavy vehicles are loaded, such as roads, airport taxiways, and runways. Regarding a shear force transmitting device installed in
（発明の課題とその特徴点）
前述のようなコンクリートスラブの伸縮目地や
クラツクの位置に適切なせん断力伝達手段が設け
られていないと、一方のスラブ上に載荷された活
荷重の他方のスラブに対する伝達、分配が十分に
なされないため、両スラブの表面間に段差が生
じ、平滑な交通が妨げられるばかりでなく、スラ
ブの破壊の原因ともなる。(Problems to be solved by the invention and its features) If appropriate shear force transmission means are not provided at the expansion joints and cracks of concrete slabs as described above, the live load loaded on one slab will cause damage to the other slab. Due to insufficient transmission and distribution, a level difference occurs between the surfaces of both slabs, which not only impedes smooth traffic, but also causes destruction of the slabs.
本発明は、優れたせん断力伝達機能が期待で
き、かつ、設置も容易なコンクリートスラブ間の
せん断力伝達具を提供することを目的としている
ものであつて、その構成上の特徴は特許請求の範
囲に記載したとおりである。 The present invention aims to provide a shear force transmitting device between concrete slabs that can be expected to have an excellent shear force transmitting function and is easy to install. As stated in the range.
本発明のせん断力伝達具は、予め板状体を加圧
してピン孔にピンを通した組立て状態で、半円柱
体を目地又はクラツクで分離されている両スラブ
の垂直面に固定して設置され、それからピンを抜
いて板状体が温度変化による目地又はクラツクの
間隙の伸縮に追随して伸縮できる状態にされるよ
うになつている。 The shear force transmitting device of the present invention is assembled by pressurizing the plate-shaped body in advance and passing the pin through the pin hole, and then installing the semi-cylindrical body fixed to the vertical surfaces of both slabs separated by a joint or crack. The pins are then removed to allow the plate-like body to expand and contract as the gaps between the joints or cracks expand and contract due to temperature changes.
（図面による説明）
本発明の一実施例を示す図面において、１は鋼
又は綱と同程度の強度を有する強化プラスチツク
で作られた半円柱体であり、その平らな側面には
縦方向に間隔をあけてキー２と盲孔３が設けられ
でいるが、キー２は半円柱体１の本体部１と一体
である。 ４も同様の半円柱体であつて、これに
も同様にキー５と盲孔６が設けられているが、キ
ー５と盲孔６の位置関係はキー２と盲孔３の位置
関係と逆になつている、
７は軟弾性材で作られた板状体であり、その大
きさは半円柱体１，４の平らな側面の大きさと略
等しく、これには前述のキーと盲孔の位置に対応
させて透孔８，９が設けられている。(Explanation with drawings) In the drawings showing one embodiment of the present invention, 1 is a semi-cylindrical body made of reinforced plastic having the same strength as steel or rope, and its flat side has vertically spaced intervals. A key 2 and a blind hole 3 are provided in the space, and the key 2 is integral with the main body 1 of the semi-cylindrical body 1. 4 is a similar semi-cylindrical body, and is also provided with a key 5 and a blind hole 6, but the positional relationship between the key 5 and the blind hole 6 is opposite to that between the key 2 and the blind hole 3. 7 is a plate-shaped body made of a soft elastic material, and its size is approximately equal to the size of the flat side of the semi-cylindrical bodies 1 and 4, and it has the aforementioned key and blind hole. Through holes 8 and 9 are provided corresponding to the positions.
半円柱体１，４の間に板状体７を挟んで組立て
たとき、キー２は透孔８を通つてその先端部が盲
孔６内に入り、また、キー５は透孔９を通つてそ
の先端部が盲孔３内に入り、この状態において、
一方の半円柱体に縦方向に作用する力はキーを介
して他方の半円柱体に伝達される。 When assembled with the plate-shaped body 7 sandwiched between the semi-cylindrical bodies 1 and 4, the key 2 passes through the through-hole 8 and its tip enters the blind hole 6, and the key 5 passes through the through-hole 9. Then its tip enters the blind hole 3, and in this state,
A force acting longitudinally on one semi-cylindrical body is transmitted to the other semi-cylindrical body via the key.
半円柱体１のキー２の先端部には最先端からの
距離を異にする複数（図の場合は３個）のピン孔
１０が設けられ、半円柱体４のキー５においても
同様である。 A plurality of (three in the figure) pin holes 10 are provided at the tip of the key 2 of the semi-cylindrical body 1 at different distances from the leading edge, and the same is true for the key 5 of the semi-cylindrical body 4. .
また、半円柱体１の本体部１には一端面から盲
孔３の先まで延びる複数のピン孔１１が設けら
れ、これは前述の組立て時にキー５の対応するピ
ン孔に連通するようになつており、同様のピン孔
は当然に半円柱体４の本体部４にも設けられてい
る。 Further, the main body 1 of the semi-cylindrical body 1 is provided with a plurality of pin holes 11 extending from one end surface to the tip of the blind hole 3, and these come to communicate with the corresponding pin holes of the key 5 during the above-mentioned assembly. Naturally, a similar pin hole is also provided in the main body portion 4 of the semi-cylindrical body 4.
なお、キーのピン孔の配列は、図示のようにキ
ーの長さ方向に傾斜させないで真直ぐにしてもよ
く、その場合は本体部のピン孔は１個でよい。 Note that the arrangement of the pin holes of the key may be straight instead of being inclined in the length direction of the key as shown in the figure, and in that case, only one pin hole may be provided in the main body.
半円柱体１，４間に板状体７を挟んで組立てた
後、適宜の圧縮機で横方向（キーの長さ方向）か
ら圧力をかけ、板状体７を所定の圧縮状態にし、
それから半円柱体１，４の本体部１，４のピン孔
にピン１２，１３を差込み、キー５，２の対応す
るピン孔に通して固定状態にする。 After assembling the plate-shaped body 7 between the semi-cylindrical bodies 1 and 4, pressure is applied from the lateral direction (the length direction of the key) using an appropriate compressor to bring the plate-shaped body 7 into a predetermined compressed state.
Then, the pins 12 and 13 are inserted into the pin holes of the main bodies 1 and 4 of the semi-cylindrical bodies 1 and 4, and passed through the corresponding pin holes of the keys 5 and 2 to be in a fixed state.
本発明のせん断力伝達具の設置はこの固定状態
のまま行うが、設置場所はスラブコンクリートの
打設時に予め、型枠により作つておくか、又はコ
ンクリートの硬化後にボーリング機械により穴を
あけて作る。 The shear force transmitting device of the present invention is installed in this fixed state, but the installation location can be made in advance using formwork when concrete slabs are poured, or by drilling holes with a boring machine after the concrete has hardened. .
ピン１２，１３の摘み１４，１５を上にし、板
状体７を目地又はクラツク１６の中心に位置させ
てセツトし、半円柱体１，４の湾曲側面とスラブ
１７，１８の端面との間に合成樹脂又は高強度の
セメントモルタルのような填充材１９を充填し、
ピン１２，１３は填充材１９が硬化した後で引抜
く。 With the knobs 14 and 15 of the pins 12 and 13 facing up, the plate-shaped body 7 is positioned at the center of the joint or crack 16 and set, and the space between the curved side surfaces of the semi-cylindrical bodies 1 and 4 and the end faces of the slabs 17 and 18 is set. is filled with a filler 19 such as synthetic resin or high-strength cement mortar,
The pins 12, 13 are pulled out after the filling material 19 has hardened.
半円柱体１，４の湾曲側面には多数の小突起２
０が設けられており、このため、填充材１９を介
して半円柱体１，４とスラブとが確実に接続さ
れ、両者間の力の伝達、分配が無理なく行われ
る。 There are many small protrusions 2 on the curved sides of the semi-cylindrical bodies 1 and 4.
0 is provided, and therefore, the semi-cylindrical bodies 1 and 4 and the slab are reliably connected via the filler material 19, and the transmission and distribution of force between them is performed without difficulty.
なお、図示の板状体７の外周に設けられている
溝２１は、その変形で、板状体７が目地又はクラ
ツクの間隙の伸縮に追随して伸縮するのを助け
る。 Note that the grooves 21 provided on the outer periphery of the illustrated plate-like body 7 help the plate-like body 7 to expand and contract following the expansion and contraction of the gaps between joints or cracks.
（発明の効果）
本発明のせん断力伝達具は以上のようなもので
あるから、これをコンクリートスラブの目地又は
クラツクに沿つて適宜間隔で設けることにより、
目地又はクラツクで分離されているスラブ間のせ
ん断力の伝達、分配が確実に行われ、隣接するス
ラブの表面間にスラブ破壊の原因となる段差が生
じないようにすることができ、また、その設置
は、キーに設けた複数のピン孔に対するピンの選
択的差込みにより、軟弾性の板状体を設置時の気
候に適合した所定の圧縮状態に仮保持したまま、
極めて容易に行うことができる。(Effects of the Invention) Since the shear force transmitting device of the present invention is as described above, by providing it at appropriate intervals along the joints or cracks of the concrete slab,
It is possible to ensure the transmission and distribution of shear force between slabs separated by joints or cracks, and to prevent the occurrence of steps between the surfaces of adjacent slabs that can cause slab failure. Installation is done by selectively inserting pins into multiple pin holes provided in the key, while temporarily holding the soft elastic plate-like body in a predetermined compressed state suitable for the climate at the time of installation.
It is extremely easy to do.
第１図は本発明の一実施例の設置状態における
縦断面、第２図は第１図のＡ−Ａ線断面図、第３
図は同じくＢ−Ｂ線断面図、第４図は一方の半円
柱体と板状体の斜視図である。
図中、１：半円柱体、２：キー、３：盲孔、
４：半円柱体、５：キー、６：盲孔、７：板状
体、８，９：透孔、１０，１１：ピン孔、１２，
１３：ピン、２０：小突起、…。
FIG. 1 is a vertical cross-section of an embodiment of the present invention in an installed state, FIG. 2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG.
The figure is a sectional view taken along the line B-B, and FIG. 4 is a perspective view of one semi-cylindrical body and a plate-like body. In the figure, 1: semi-cylindrical body, 2: key, 3: blind hole,
4: semi-cylindrical body, 5: key, 6: blind hole, 7: plate-like body, 8, 9: through hole, 10, 11: pin hole, 12,
13: Pin, 20: Small protrusion, ...
Claims (1)
体とから成り、各半円柱体の湾曲側面にはコンク
リートスラブとのボンド性能をよくするための小
突起を付け、各半円柱体の平らな側面には縦方向
に間隔をあけてせん断力伝達用のキーと他方の半
円柱体のキーが入る盲孔を設け、前記キーにその
先端からの距離を違えて複数のピン孔を設けると
ともに、本体部にも、一端面から盲孔の先きまで
延びるピン孔を設け、また、板状体には半円柱体
のキーと盲孔の位置にそれぞれ対応させて透孔を
設け、一方の半円柱体のキーが板状体の透孔を通
つて他方の半円柱体の盲孔に入るように、半円柱
体間に板状体を挟んで組立て、前記ピン孔に抜差
し自在のピンを通して、板状体を選択された圧縮
状態に仮保持することができるようになつている
ことを特徴とするコンクリートスラブ間のせん断
力伝達具。1 Consists of two rigid semi-cylindrical bodies and one soft elastic plate-like body, each semi-cylindrical body has a small protrusion on the curved side surface to improve bonding performance with the concrete slab, and Blind holes are provided in the flat side of the cylindrical body at intervals in the vertical direction, into which the key for transmitting shear force and the key of the other semi-cylindrical body are inserted, and a plurality of pins are inserted into the key at different distances from the tip. In addition to providing the hole, a pin hole extending from one end surface to the tip of the blind hole is also provided in the main body, and through holes are provided in the plate-like body corresponding to the positions of the key and the blind hole of the semi-cylindrical body, respectively. Assemble the plate by sandwiching it between the semi-cylindrical bodies so that the key of one semi-cylindrical body enters the blind hole of the other semi-cylindrical body through the through hole of the plate-shaped body, and insert and remove the plate into the pin hole. A shear force transmitting device between concrete slabs, characterized in that a plate-shaped body can be temporarily held in a selected compressed state through a freely adjustable pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27483287A JPH01116101A (en) | 1987-10-30 | 1987-10-30 | Shearing-force transmitting tool of concrete slab room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27483287A JPH01116101A (en) | 1987-10-30 | 1987-10-30 | Shearing-force transmitting tool of concrete slab room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01116101A JPH01116101A (en) | 1989-05-09 |
| JPH0415325B2 true JPH0415325B2 (en) | 1992-03-17 |
Family
ID=17547199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27483287A Granted JPH01116101A (en) | 1987-10-30 | 1987-10-30 | Shearing-force transmitting tool of concrete slab room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01116101A (en) |
-
1987
- 1987-10-30 JP JP27483287A patent/JPH01116101A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01116101A (en) | 1989-05-09 |
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