JPH01102128A - Support structure for concrete structure - Google Patents
Support structure for concrete structureInfo
- Publication number
- JPH01102128A JPH01102128A JP26126587A JP26126587A JPH01102128A JP H01102128 A JPH01102128 A JP H01102128A JP 26126587 A JP26126587 A JP 26126587A JP 26126587 A JP26126587 A JP 26126587A JP H01102128 A JPH01102128 A JP H01102128A
- Authority
- JP
- Japan
- Prior art keywords
- concrete structure
- steel pipe
- pipe pile
- reinforcing bars
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 48
- 239000010959 steel Substances 0.000 claims abstract description 48
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 40
- 239000000463 material Substances 0.000 claims description 10
- 230000004308 accommodation Effects 0.000 claims description 5
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 2
- 125000006850 spacer group Chemical group 0.000 abstract description 2
- 238000010521 absorption reaction Methods 0.000 abstract 3
- 238000002955 isolation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Foundations (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、コンクリート構造体とそれを支持する鋼管杭
とを、両者に鉄筋をわたらせて結合するコンクリート構
造体支持構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a concrete structure support structure that connects a concrete structure and a steel pipe pile that supports the structure by extending reinforcing bars between the two.
従来、上記の如きコンクリート構造体支持構造において
は、コンクリート構造体と鋼管杭とを両者に鉄筋をわた
らせた状態で単に剛体的に連結させていた。Conventionally, in the above-mentioned concrete structure support structure, the concrete structure and the steel pipe pile were simply rigidly connected with reinforcing bars extending between them.
しかし、従来の構造では、コンクリート構造体と鋼管杭
とに鉄筋をわたらせることから結合強度は高いものが得
られ、上からの荷重のみならずコンクリート構造体から
鋼管杭にかかる引き抜き力に対しても十分に対処できる
ものの、その反面、地震に対する免震機能が無く、地震
震動が鋼管杭から上部のコンクリート構造体に直接的に
伝わる問題があった。However, in conventional structures, high bonding strength can be obtained by connecting reinforcing bars between the concrete structure and the steel pipe pile, and it is able to withstand not only the load from above but also the pull-out force applied from the concrete structure to the steel pipe pile. However, on the other hand, there was a problem that there was no seismic isolation function against earthquakes, and earthquake vibrations were directly transmitted from the steel pipe piles to the concrete structure above.
本発明の目的は、鋼管杭とコンクリート構造体とを連結
する鉄筋を利用した合理的な改良により上述問題を解消
する点にある。An object of the present invention is to solve the above-mentioned problems through rational improvements using reinforcing bars that connect steel pipe piles and concrete structures.
本発明によるコンクリート構造体支持構造の特徴構成は
、コンクリート構造体とそれを支持する鋼管杭とを、両
者に鉄筋をわたらせて結合するに、前記鋼管杭の上端よ
りも低い箇所において前記鉄筋を、その下端側連結点を
支点とした横振れを許す状態で前記鋼管杭に連結すると
共に、その鉄筋を前記鋼管杭の上端よりも上方に延出し
、前記コンクリート構造体を、前記鉄筋に連結した状態
で、前記鋼管杭の上端部に水平方向で摺動自在に載置し
たことにあり、その作用・効果は次の通りである。The characteristic configuration of the concrete structure support structure according to the present invention is that, when a concrete structure and a steel pipe pile supporting it are connected by reinforcing bars across both, the reinforcing bars are connected at a location lower than the upper end of the steel pipe pile. A state in which the concrete structure is connected to the steel pipe pile in a state that allows lateral vibration using the lower end side connection point as a fulcrum, and the reinforcing bars extend upward from the upper end of the steel pipe pile, and the concrete structure is connected to the reinforcing bars. The reason is that it is placed on the upper end of the steel pipe pile so that it can slide freely in the horizontal direction, and its functions and effects are as follows.
つまり、上述構成によれば、地震の水平力は、鋼管杭と
コンクリート構造体との相対的摺動を伴う状態で、鋼管
杭の上端よりも低い箇所での鉄筋の弾性的な横振れによ
り効果的に吸収される。In other words, according to the above configuration, the horizontal force of an earthquake is affected by the elastic lateral vibration of the reinforcing bars at a location lower than the top of the steel pipe pile, with relative sliding between the steel pipe pile and the concrete structure. be absorbed.
換言すれば、振れの融通を与えた鉄筋の弾性撓み変形に
より鋼管杭からコンクリート構造体に伝わる地震震動を
軽減（免震）するのである。In other words, the elastic flexural deformation of the reinforcing bars that provides deflection flexibility reduces (seismic isolation) the seismic vibrations transmitted from the steel pipe piles to the concrete structure.
一方、上述の如き免震機能を発揮し得るのに対し、コン
クリート構造体からかかる上からの荷重は、鋼管杭によ
り確実に受止められ、又、コンクリート構造体からかか
る引き抜き力は、コンクリート構造体と鋼管杭とにわた
らせた鉄筋を介して確実にコンクリート杭に伝達される
。On the other hand, although it can exhibit the above-mentioned seismic isolation function, the load applied from above from the concrete structure is reliably received by the steel pipe pile, and the pull-out force applied from the concrete structure is It is reliably transmitted to the concrete piles through reinforcing bars that span the steel pipe piles.
以上の結果、コンクリート構造体と鋼管杭との結合強度
については、上から荷重、及び、引き抜き力のいずれか
に対しても従来と同等の高い強度を有しながら、地震に
対しても免震機能を効果的に発揮できて、コンクリート
構造体に伝わる地震震動を抑制軽減できる優れたコンク
リート構造体支持構造を提供し得るに至った。As a result of the above, the joint strength between the concrete structure and the steel pipe pile has the same high strength as conventional structures against both load and pull-out force from above, while also being seismically isolated against earthquakes. It has now been possible to provide an excellent concrete structure support structure that can effectively perform its functions and suppress and reduce earthquake vibrations transmitted to the concrete structure.
又、コンクリート構造体と鋼管杭とを連結するための鉄
筋を利用して上述の如き免震機能を発揮させるから、改
良コストを安価にし得る利点もある。Moreover, since the above-mentioned seismic isolation function is achieved by using reinforcing bars for connecting the concrete structure and the steel pipe pile, there is an advantage that the improvement cost can be reduced.
次に実施例を説明する。 Next, an example will be described.
第１図及び第２図は、コンクリート構造体（１）とそれ
を支持する鋼管杭（２）とを両者の間に鉄筋（３）をわ
たらせて結合するコンクリート構造体支持構造を示す。FIG. 1 and FIG. 2 show a concrete structure support structure in which a concrete structure (1) and a steel pipe pile (2) supporting it are connected with reinforcing bars (3) interposed between the two.
鋼管杭（２）の上端からは、コンクリート構造体（１）
との連結のための鉄筋（３）の複数を環状に配置して上
方に延出させてあり、それら鉄筋（３）は、鋼管杭（２
）の孔内での下端側連結点（Ｐ）を支点とした振れを許
すように、鋼管杭（２）の上端よりも低い箇所において
鋼管杭（２）の内面に溶接連結してある。From the top of the steel pipe pile (2), the concrete structure (1)
A plurality of reinforcing bars (3) are arranged in a ring shape and extend upward for connection with the steel pipe pile (2).
) is welded to the inner surface of the steel pipe pile (2) at a location lower than the upper end of the steel pipe pile (2) to allow swinging around the lower end side connection point (P) in the hole.
又、その溶接連結にあたっては、鉄筋（３）と鋼管杭（
２）の内面との間に鉄筋（３）の振れに対する融通間隔
を形成するための鋼製スペーサ部材（４）を鉄筋（３）
と鋼管杭（２）内面との間に介在させである。In addition, when connecting them by welding, reinforcing bars (3) and steel pipe piles (
A steel spacer member (4) is attached to the inner surface of the reinforcing bar (3) to form a flexible interval between the inner surface of the reinforcing bar (3) and the inner surface of the reinforcing bar (3).
and the inner surface of the steel pipe pile (2).
鋼管杭（２）の上端には鋼製の天板（５）を溶接により
蓋状に固設してあり、その天板（５）には、鉄筋（３）
の個々をそれらの振れを許す状態で貫通させる融通孔（
６）（すなわち、鉄筋径の数倍の孔径を有し貫通鉄筋（
３）と孔内周との間に鉄筋（３）の振れに対する融通間
隔を有する孔）を形成してある。A steel top plate (5) is welded to the top end of the steel pipe pile (2) in a lid-like manner.
A flexible hole (
6) (i.e., penetrating reinforcing bars with hole diameters several times the diameter of the reinforcing bars (
A hole) is formed between the reinforcing bar (3) and the inner periphery of the hole to accommodate the deflection of the reinforcing bar (3).
そして、上部のコンクリート構造体（１）は、天板（５
）の融通孔（６）を貫通させた鉄筋（３）に連結した状
態で、かつ、天板（５）との間に摺動抵抗を軽減する滑
り材（７）を介在した状態で天板（５）上に摺動自在に
載置してある。The upper concrete structure (1) has a top plate (5
) is connected to the reinforcing bars (3) passed through the accommodation holes (6) of the top plate (5), and with a sliding material (7) interposed between it and the top plate (5) to reduce sliding resistance. (5) It is slidably placed on the top.
つまり、コンクリート構造体（１）と天板（５）との相
対摺動を伴う状態での鋼管杭（２）内部での鉄筋（３）
の弾性的な振れ（弾性撓み変形）により、鋼管杭（２）
から上部のコンクリート構造体（１）に伝わる地震の水
平力を吸収軽減するようにしてある。In other words, the reinforcing bars (3) inside the steel pipe pile (2) in a state that involves relative sliding between the concrete structure (1) and the top plate (5).
Due to the elastic deflection (elastic deflection deformation) of the steel pipe pile (2)
It is designed to absorb and reduce the horizontal force of an earthquake transmitted from the ground to the upper concrete structure (1).
尚、コンクリート構造体（１）と天板（５）との間に滑
り材（７）を介装するにあたっては、コンクリート構造
体（１）の下面に鋼板製の滑り板（８）を付設し、そし
て、その滑り板（８）と天板（５）との間に両者の摺動
を円滑にする適宜材質の滑り材（７）を挾み込んである
。In addition, when interposing the sliding material (7) between the concrete structure (1) and the top plate (5), a steel sliding plate (8) is attached to the lower surface of the concrete structure (1). A sliding member (7) made of an appropriate material is inserted between the sliding plate (8) and the top plate (5) to ensure smooth sliding between them.
又、滑り板（８）に形成する鉄筋貫通孔（９）は鉄筋（
３）とばぼ同径の孔としてあり、それによって、コンク
リート構造体（１）を形成するコンクリート打設の際に
鉄筋挿通状態にある貫通孔（９）の部分から滑り部側に
打設コンクリートが漏出しないようにしてある。In addition, the reinforcing bar through hole (9) formed in the sliding plate (8) is inserted into the reinforcing bar (
3) The holes are of the same diameter, so that when pouring concrete to form the concrete structure (1), the concrete is poured from the part of the through hole (9) through which the reinforcing bars are inserted toward the sliding part. It is designed to prevent leakage.
図中（１０）は鋼管杭（２）の孔内に充填した土砂であ
る。In the figure, (10) is earth and sand filled into the hole of the steel pipe pile (2).
次に別実施例を列記する。 Next, another example will be listed.
（イ）第３図に示すように、鉄筋（３）を鋼管杭（２）
の上端よりも低い箇所において鋼管杭（２）の外周に連
結しても良い。(b) As shown in Figure 3, the reinforcing bars (3) are attached to the steel pipe piles (2).
It may be connected to the outer periphery of the steel pipe pile (2) at a location lower than the upper end of the pipe pile (2).
尚、この場合、図に示す如きカバー（１１）を設けるの
が良い。In this case, it is preferable to provide a cover (11) as shown in the figure.
（ロ）鋼管杭の上端よりも低い箇所において鉄筋を、そ
の下端側連結点を支点とした振れを許す状態で鋼管杭に
連結するための具体的細部構造は適当に改良が可能であ
る。(b) The specific detailed structure for connecting the reinforcing bars to the steel pipe pile at a point lower than the upper end of the steel pipe pile in a state that allows swinging around the lower end side connection point as a fulcrum can be appropriately improved.
（ハ）天板の下方に位置する鉄筋の振れ許容空間に、鉄
筋の振れに対してクツション作用する適当な材質の緩衝
材を内装しても良い。(c) A buffer material made of an appropriate material that acts as a cushion against the deflection of the reinforcing bars may be installed in the space below the top plate that allows for the deflection of the reinforcing bars.
（ニ）鋼管杭の上端に固設した天板に対してコンクリー
ト構造体を摺動自在に載置するに、天板上にコンクリー
ト構造体を直接に載置してもよく、あるいは、種々の構
造の摺動機構を介して載置しても良く、又、両者の間に
滑り材を介装する場合、その滑り材の材質、並びに、具
体的な介装構造は種々の変更改良が可能である。(d) To slidably place the concrete structure on the top plate fixed to the top end of the steel pipe pile, the concrete structure may be placed directly on the top plate, or various methods may be used. It may be placed through a sliding mechanism of the structure, and if a sliding material is interposed between the two, the material of the sliding material and the specific intervening structure can be changed and improved in various ways. It is.
（ネ）鉄筋と融通孔との径比は適当に決定すれば良く、
又、融通孔の１個に対して複数本の鉄筋を貫通させるよ
うにしても良い。(e) The diameter ratio of the reinforcing bars and the accommodation holes should be determined appropriately;
Further, a plurality of reinforcing bars may be passed through one of the accommodation holes.
（へ）コンクリート構造体は、建築物、橋梁等、何であ
っても良い。(f) The concrete structure may be anything such as a building or a bridge.
尚、特許請求の範囲の項に図面との対照を便利にする為
に符号を記すが、該記入により本発明は添付図面の構造
に限定されるものではない。Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.
第１図及び第２図は本発明の実施例を示し、第１図は断
面図、第２図は分解斜視図である。
第３図は本発明の別実施例を示す断面図である。
（１）・・・・・・コンクリート構造体、（２）・・・
・・・鋼管杭、（３）・・・・・・鉄筋、（５）・・・
・・・天板、（６）・・・・・・融通孔、（７）・・・
・・・滑り材、（Ｐ）・・・・・・連結点。1 and 2 show an embodiment of the present invention, with FIG. 1 being a sectional view and FIG. 2 being an exploded perspective view. FIG. 3 is a sectional view showing another embodiment of the present invention. (1)... Concrete structure, (2)...
...Steel pipe pile, (3) ...Reinforcement bar, (5) ...
...Top plate, (6)...Accessibility hole, (7)...
... Sliding material, (P) ... Connection point.
Claims (1)
（２）とを、両者に鉄筋（３）をわたらせて結合するコ
ンクリート構造体支持構造であって、前記鋼管杭（２）
の上端よりも低い箇所において前記鉄筋（３）を、その
下端側連結点（Ｐ）を支点とした横振れを許す状態で前
記鋼管杭（２）に連結すると共に、その鉄筋（３）を前
記鋼管杭（２）の上端よりも上方に延出し、前記コンク
リート構造体（１）を、前記鉄筋（３）に連結した状態
で、前記鋼管杭（２）の上端部に水平方向で摺動自在に
載置したコンクリート構造体支持構造。 ２、前記鉄筋（３）をその横振れを許す状態で貫通させ
る融通孔（６）を形成した天板（５）を前記鋼管杭（２
）の上端に設け、前記コンクリート構造体（１）を、前
記融通孔（６）を貫通させた前記鉄筋（３）に連結した
状態で、前記天板（５）に摺動自在に載置した特許請求
の範囲第１項に記載のコンクリート構造体支持構造。 ３、前記鉄筋（３）を前記鋼管杭（２）に対して、その
孔内で連結してある特許請求の範囲第１項又は第２項に
記載のコンクリート構造体支持構造。 ４、前記天板（５）と前記コンクリート構造体（１）と
の間に、両者（１）、（５）の摺動抵抗を軽減する滑り
材（７）を介装した特許請求の範囲第２項に記載のコン
クリート構造体支持構造。[Scope of Claims] 1. A concrete structure support structure in which a concrete structure (1) and a steel pipe pile (2) supporting the same are connected by extending reinforcing bars (3) between the two, wherein the steel pipe pile (2)
The reinforcing bar (3) is connected to the steel pipe pile (2) at a point lower than the upper end in a state that allows lateral swing around the lower end connection point (P) as a fulcrum, and the reinforcing bar (3) is connected to the steel pipe pile (2) at a point lower than the upper end. Extending above the upper end of the steel pipe pile (2), the concrete structure (1) can freely slide horizontally on the upper end of the steel pipe pile (2) while connected to the reinforcing steel (3). Concrete structure support structure placed on. 2. The steel pipe pile (2) is attached to the top plate (5) in which an accommodation hole (6) is formed to penetrate the reinforcing bar (3) while allowing its lateral swing.
), and the concrete structure (1) is slidably mounted on the top plate (5) while connected to the reinforcing steel (3) that passes through the accommodation hole (6). A concrete structure support structure according to claim 1. 3. The concrete structure support structure according to claim 1 or 2, wherein the reinforcing bars (3) are connected to the steel pipe pile (2) within the hole thereof. 4. A sliding material (7) is interposed between the top plate (5) and the concrete structure (1) to reduce the sliding resistance of both (1) and (5). The concrete structure support structure described in Section 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26126587A JPH01102128A (en) | 1987-10-15 | 1987-10-15 | Support structure for concrete structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP26126587A JPH01102128A (en) | 1987-10-15 | 1987-10-15 | Support structure for concrete structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01102128A true JPH01102128A (en) | 1989-04-19 |
Family
ID=17359424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP26126587A Pending JPH01102128A (en) | 1987-10-15 | 1987-10-15 | Support structure for concrete structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01102128A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000336665A (en) * | 1999-05-27 | 2000-12-05 | Kume Sekkei:Kk | Pile head joint structure between pile and foundation slab, and pile with damper |
| KR20010016494A (en) * | 2000-12-14 | 2001-03-05 | 홍성영 | Structure for steel pile head treatment using outer perimeter welding and thereof connectors |
| WO2002016701A1 (en) * | 2000-08-09 | 2002-02-28 | Jeong Hyo Bae | Reinforcement structure for a foundation pile |
| KR100397847B1 (en) * | 2000-12-06 | 2003-09-13 | 비비엠코리아(주) | Head reinforced apparatus for steel pipe piles |
| KR100423933B1 (en) * | 2000-12-06 | 2004-03-24 | 비비엠코리아(주) | Head rein forced apparatus for steel pipe piles |
-
1987
- 1987-10-15 JP JP26126587A patent/JPH01102128A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000336665A (en) * | 1999-05-27 | 2000-12-05 | Kume Sekkei:Kk | Pile head joint structure between pile and foundation slab, and pile with damper |
| WO2002016701A1 (en) * | 2000-08-09 | 2002-02-28 | Jeong Hyo Bae | Reinforcement structure for a foundation pile |
| KR100397847B1 (en) * | 2000-12-06 | 2003-09-13 | 비비엠코리아(주) | Head reinforced apparatus for steel pipe piles |
| KR100423933B1 (en) * | 2000-12-06 | 2004-03-24 | 비비엠코리아(주) | Head rein forced apparatus for steel pipe piles |
| KR20010016494A (en) * | 2000-12-14 | 2001-03-05 | 홍성영 | Structure for steel pile head treatment using outer perimeter welding and thereof connectors |
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