JPS6250617B2 - - Google Patents
Info
- Publication number
- JPS6250617B2 JPS6250617B2 JP55070753A JP7075380A JPS6250617B2 JP S6250617 B2 JPS6250617 B2 JP S6250617B2 JP 55070753 A JP55070753 A JP 55070753A JP 7075380 A JP7075380 A JP 7075380A JP S6250617 B2 JPS6250617 B2 JP S6250617B2
- Authority
- JP
- Japan
- Prior art keywords
- concrete
- space
- joining
- plates
- longitudinal direction
- 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
- 239000004567 concrete Substances 0.000 claims description 75
- 230000003014 reinforcing effect Effects 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 17
- 238000009933 burial Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000011513 prestressed concrete Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
Description
【発明の詳細な説明】
本発明はプレストレストコンクリート板（以下
PCコンクリート板という）を複数個並設した場
合の隣接するPCコンクリート板の横方向の接合
方法に関する。[Detailed Description of the Invention] The present invention provides a prestressed concrete plate (hereinafter referred to as
This relates to a method for horizontally joining adjacent PC concrete plates when multiple PC concrete plates (called PC concrete plates) are installed side by side.
PCコンクリート板を床板として使用し、第１
図に示すような道路橋を建造する場合には、道路
橋１の横幅方向に並設した複数個のPCコンクリ
ート板２の両端部を夫々の支持部３，３に掛け渡
し、また横幅方向に隣接する各PCコンクリート
板２の接合は、その接合空間部にコンクリート又
はモルタル等を充填して互いに隣り同志を接合す
ることによつて行なわれている。 Using PC concrete boards as floorboards, the first
When constructing a road bridge as shown in the figure, both ends of a plurality of PC concrete plates 2 arranged in parallel in the width direction of the road bridge 1 are spanned over the respective supporting parts 3, and Adjacent PC concrete plates 2 are joined by filling the joining space with concrete or mortar and joining the adjacent PC concrete plates 2 to each other.
従来、この種の接合方法としては、例えば第２
図に示すように、PCコンクリート板２の成型時
に、該PCコンクリート板２の側部長手方向に沿
つて予め横繋ぎ用の鉄筋４を埋め込んで成型して
おき、第３図に示すように、PCコンクリート板
２の据付後に、この鉄筋４と隣接させたPCコン
クリート板２の鉄筋４とをその接合部５において
互いに交叉するように折曲形成して両方の結合を
保持させ、またこの交叉部には必要に応じて長手
方向に配力筋６を配設した後、該接合部空間にコ
ンクリート７を打設してPCコンクリート板２を
接合する方法があつた。 Conventionally, as this type of joining method, for example, the second
As shown in the figure, when forming the PC concrete plate 2, reinforcing bars 4 for horizontal connections are embedded in advance along the longitudinal direction of the side of the PC concrete plate 2, and as shown in Fig. 3, After the PC concrete plate 2 is installed, this reinforcing bar 4 and the reinforcing bar 4 of the adjacent PC concrete plate 2 are bent so as to cross each other at the joint 5 to maintain both connections, and this crossing part There was a method of joining the PC concrete plates 2 by placing distribution bars 6 in the longitudinal direction as necessary and then pouring concrete 7 into the joint space.
しかしながら、上記従来の接合方法にあつて
は、PCコンクリート板２に予め埋込まれた鉄筋
４を、PCコンクリート板２の据付後に、１本１
本交叉状に折り曲げ加工しなければならず、その
作業が煩雑であつた他、鉄筋４を折り曲げる際、
反発力で鉄筋４が元の状態に戻つてしまう虞れが
あり、このため鉄筋４の先端を、別にPCコンク
リート板２に埋め込んだ補助筋（図示せず）で縛
り付ける等して鉄筋４を押え付けなければなら
ず、作業性の低下を来たす原因となつていた。 However, in the conventional joining method described above, the reinforcing bars 4 embedded in the PC concrete board 2 in advance are inserted one by one after the PC concrete board 2 is installed.
It was necessary to bend the reinforcing bars 4 into a cross shape, which was a complicated process, and when bending the reinforcing bars 4,
There is a risk that the reinforcing bars 4 may return to their original state due to the repulsive force, so the tips of the reinforcing bars 4 are held down by tying them with auxiliary bars (not shown) that are separately embedded in the PC concrete plate 2. This causes a decrease in work efficiency.
本発明は上記の点に鑑みてなされたものであ
り、その目的とするところは、PCコンクリート
板の横方向の接合を、簡易な方法によつて行ない
得るようにして従来のように煩雑な作業を排除す
ることにある。 The present invention has been made in view of the above points, and its purpose is to enable the horizontal joining of PC concrete plates by a simple method, thereby eliminating the complicated work required in the past. The purpose is to eliminate
以下添付図面に示す実施例に基づいて本発明を
詳細に説明する。 The present invention will be described in detail below based on embodiments shown in the accompanying drawings.
第４図は、本発明の実施に使用するPCコンク
リート板２の単一体を示したものであり、その長
手方向両側部には、PCコンクリート板２据付時
における接合空間部を構成するための切欠部８が
設けられている。この切欠部８は、側縁部に沿つ
て形成された張出部９とこの張出部９の側壁に設
けられた凹部１０とで構成されている。この凹部
１０は、PCコンクリート板２の上面１１から張
出部９の側壁の中途部まで切欠形成された第１の
凹部１０′とPCコンクリート板２の上面１１から
張出部９の一般面まで側壁を切欠形成された第２
の凹部１０″とが長手方向に沿つて等間隔に交互
に形成されたものであり、側縁部には矩形状の凹
凸が連続的に形成される。 Fig. 4 shows a single unit of the PC concrete plate 2 used in the implementation of the present invention, and there are notches on both sides in the longitudinal direction to form a joint space when the PC concrete plate 2 is installed. A section 8 is provided. This notch 8 is composed of a projecting part 9 formed along the side edge and a recess 10 provided in the side wall of the projecting part 9. This recess 10 includes a first recess 10' which is cut out from the upper surface 11 of the PC concrete board 2 to the middle part of the side wall of the overhang 9, and a first recess 10' formed from the upper surface 11 of the PC concrete board 2 to the general surface of the overhang 9. A second cutout formed in the side wall
recesses 10'' are formed alternately at equal intervals along the longitudinal direction, and rectangular irregularities are continuously formed on the side edges.
尚、これら切欠部８はPCコンクリート板２成
型時に一体的に形成される。 Note that these notches 8 are integrally formed when the PC concrete board 2 is molded.
第５図乃至第８図は、上記のように形成した
PCコンクリート板２を、その張出部９の端面同
志を当接し、かつ、同一形状の凹部１０を合致さ
せて並設した場合の接合部５を示したものであ
り、第１の凹部１０によつて形成される空間部は
第７図に示すように略Ｔ字形となり、また第２の
凹部１０″によつて形成される空間部は第８図に
示すように略矩形状となる。そしてこれらの空間
部は第５図に示すように接合部５長手方向におい
て交互に形成される。 Figures 5 to 8 are formed as described above.
This figure shows a joint 5 when PC concrete plates 2 are arranged side by side with the end faces of their protruding parts 9 in contact with each other, and recesses 10 of the same shape are aligned. The space thus formed has a substantially T-shape as shown in FIG. 7, and the space formed by the second recess 10'' has a substantially rectangular shape as shown in FIG. 8. These spaces are formed alternately in the longitudinal direction of the joint 5, as shown in FIG.
このようにして、PCコンクリート板２を横方
向に並設した後、上記夫々の凹部１０に補強筋１
２を配置する。この補強筋１２は各空間部の横幅
と略同一長さの棒状の鋼材からなり、第５図乃至
第８図に示すように、隣接する両方のPCコンク
リート板２，２に跨がるように各凹部１０′，１
０″の下面に配置したものである。従つて、第１
の凹部１０′に配置された補強筋１２′と、第２の
凹部１０″に配置された補強筋１２″とは、接合部
５においてその埋設高さが交互に上下となるよう
に配置されることとなる。尚、補強筋１２は必ず
しも総ての凹部１０に配置する必要はなく、PC
コンクリート板２相互の剪断力を充分に伝達する
為の剛性の維持と補強筋間隔の剪断又は引つ張り
抵抗による亀裂の生じない最小負担距離等の条件
によつてその個数を決定する。 In this way, after the PC concrete plates 2 are arranged side by side in the horizontal direction, reinforcing bars 1 are placed in each of the recesses 10.
Place 2. This reinforcing bar 12 is made of a bar-shaped steel material with a length that is approximately the same as the width of each space, and as shown in FIGS. Each recess 10', 1
0''. Therefore, the first
The reinforcing bars 12' arranged in the recess 10' and the reinforcing bars 12'' arranged in the second recess 10'' are arranged so that their buried heights are alternately up and down in the joint 5. It happens. It should be noted that the reinforcing bars 12 do not necessarily need to be placed in all the recesses 10;
The number of concrete plates 2 is determined based on conditions such as maintaining rigidity to sufficiently transmit shear force between the concrete plates 2 and the minimum load distance between reinforcing bars to prevent cracks from occurring due to shear or tensile resistance.
次に上下位置に夫々配設した補強筋１２′，１
２″の上に長手方向に長く延びる配力筋６，６を
載せて補強筋１２′，１２″を長手方向に連結すれ
ば、接合部の強度は更に増加される。 Next, reinforcing bars 12' and 1 are placed at the upper and lower positions, respectively.
If the reinforcing bars 12', 12'' are connected in the longitudinal direction by placing distribution bars 6, 6 extending in the longitudinal direction on top of the reinforcing bars 12', 12'', the strength of the joint can be further increased.
このようにしてPCコンクリート板２の据付け
を終了した後に、上記接合部５の空間部に膨張性
コンクリート１３を打設し、表面の養生を行なつ
た後に施工は完了し、隣接するPCコンクリート
板２，２は第６図に示すように接合部５に充填し
た膨張性コンクリート１３によつて連結される。 After completing the installation of the PC concrete plate 2 in this way, expandable concrete 13 is placed in the space of the joint 5, and after the surface is cured, the construction is completed, and the adjacent PC concrete plate 2, 2 are connected by expandable concrete 13 filled in the joint 5 as shown in FIG.
この膨張性コンクリートに使用する膨張材は石
灰系又はカルシウムサルホアルミネート系のもの
であり、セメント100重量部に対し内割にて８〜
15重量部を混和させたものである。例えば、この
膨張材として灼熱減量0.6％、Al2O311.8％、
CaO51.9％、SO330.7％の成分比からなるSACS
（住友セメント株式会社製）等が使用され、この
膨張材を混和したコンクリートは普通コンクリー
トが収縮する比率以上に膨張し、それによつて隣
接するPCコンクリート板の接合面を圧着して両
者の密着性を高めることができ、両者のPCコン
クリート板をあたかも一つの剛性板の如く成形す
ることができる。 The expanding material used in this expansive concrete is lime-based or calcium sulfoaluminate-based, and is divided into 8 to 8 parts by weight per 100 parts by weight of cement.
15 parts by weight were mixed. For example, as this expansion material, ignition loss 0.6%, Al 2 O 3 11.8%,
SACS consisting of a component ratio of CaO 51.9% and SO 3 30.7%
(manufactured by Sumitomo Cement Co., Ltd.), etc., and the concrete mixed with this expanding agent expands at a rate exceeding the contraction rate of ordinary concrete, thereby compressing the joint surfaces of adjacent PC concrete plates and improving the adhesion between the two. This allows both PC concrete plates to be formed as if they were one rigid plate.
第９図乃至第１１図は本発明の第二の実施例を
示したものである。この実施例において各PCコ
ンクリート板２は、接合空間を構成する各凹部１
０を第一の実施例と同一の形状にその両側部長手
方向に沿つて成形したものであり、またこれら凹
部１０の内側寄の下面コンクリート内に補強筋１
２の折曲端部が嵌挿するためのバイプ１４を埋込
んで成型したものである。従つて、両端部を予め
折曲形成した補強筋１２は、その折曲部をパイプ
１４内に嵌挿することによつて隣接する両方の
PCコンクリート板２に掛け渡され、しかも第一
の実施例と異なつて両方のPCコンクリート板２
を拘束する役目を果たすので剪断力に対してより
多くの効果を有する。 9 to 11 show a second embodiment of the present invention. In this embodiment, each PC concrete plate 2 has a concave portion 1 constituting a joint space.
0 is formed into the same shape as the first embodiment along the longitudinal direction on both sides, and reinforcing bars 1 are provided in the lower concrete on the inner side of these recesses 10.
The bent end of No. 2 is molded with a vip 14 embedded therein for insertion. Therefore, by inserting the bent portions into the pipe 14, the reinforcing bars 12, which have both ends bent in advance, can be inserted into the pipe 14.
It spans over the PC concrete board 2, and unlike the first embodiment, both PC concrete boards 2
It has more effect on shearing force because it plays the role of restraining the .
また、上記のように剪断力等に対し効果を有す
るため、補強筋１２の配置個数も第一の実施例よ
り少ない数でよい。 Furthermore, since the second embodiment has an effect on shearing force and the like as described above, the number of reinforcing bars 12 may be smaller than that of the first embodiment.
尚、６は接合部の長手方向に配設される配力
筋、また１３は膨張性コンクリートである。 Note that 6 is a distribution bar arranged in the longitudinal direction of the joint, and 13 is expandable concrete.
第１２図乃至第１４図は、本発明の第三の実施
例を示したものであり、各PCコンクリート板２
には上記第一の実施例と同様に、深さの異なる２
種の凹部１０′，１０″がその側部長手方向に沿つ
て交互に形成されている。この実施例における凹
部１０′，１０″は、PCコンクリート板２の側面
より横方向に適宜距離の凹みを形成したものであ
り、隣接するPCコンクリート板を接合したとき
には第１３図及び第１４図に示すように深さの異
なる逆Ｔ字状の空間部がその接合部５に形成され
る。この実施例おける補強筋６は、筒体１５にボ
ルト１６を螺合し、その筒体１５及びボルト１６
の両端部に圧着用の鋼板製プレート１７を回転可
能に取付けたものである。従つて、PCコンクリ
ート板２を据付後、上記空間部内に補強筋１２を
縮めた状態で挿入し、筒体１５の中程に設けた補
強筋延伸用の穴１８を利用して筒体１５を回転延
伸し、プレート１７をPCコンクリート板２の凹
部１０′，１０″の内壁に圧接する。このようにし
て各空間部に補強筋１２をその上下位置が交互と
なるように配設した後、空間部に膨張性コンクリ
ート１３を打設して施工を完了する。 12 to 14 show a third embodiment of the present invention, in which each PC concrete plate 2
As in the first embodiment, there are two holes with different depths.
Seed recesses 10', 10'' are formed alternately along the longitudinal direction of the sides.The recesses 10', 10'' in this embodiment are recesses at an appropriate distance laterally from the side surface of the PC concrete board 2. When adjacent PC concrete plates are joined, an inverted T-shaped space with different depths is formed at the joint 5, as shown in FIGS. 13 and 14. The reinforcing bar 6 in this embodiment is constructed by screwing a bolt 16 onto a cylindrical body 15 and connecting the cylindrical body 15 and the bolt 16
A steel plate 17 for crimping is rotatably attached to both ends of the plate. Therefore, after installing the PC concrete plate 2, the reinforcing bars 12 are inserted into the above-mentioned space in a contracted state, and the cylindrical body 15 is expanded using the hole 18 for extending the reinforcing bars provided in the middle of the cylindrical body 15. The plate 17 is pressed against the inner wall of the concave portions 10' and 10'' of the PC concrete plate 2 by rotation and stretching. After the reinforcing bars 12 are thus arranged in each space so that their upper and lower positions are alternate, Expandable concrete 13 is placed in the space to complete the construction.
この実施例においては、上記空間部を前述の実
施例の場合より少なくすることができるので、
PCコンクリート板の持つ特性を減殺することが
ない。 In this embodiment, the space can be made smaller than in the previous embodiment, so
The properties of the PC concrete board are not diminished.
尚、上述した総ての実施例において、その接合
部における強度は、理論的には従来のものと同等
の強度を有するものである。 In all of the above-described embodiments, the strength of the joints is theoretically equivalent to that of conventional joints.
以上のように本発明に係るPCコンクリート板
の接合方法によれば、その接合部に深さの異なる
空間を形成し、この空間内に埋設高さが異なるよ
うに補強筋を配置するのみで配筋が行なえるの
で、従来の配筋の方法に比較して施工が簡単であ
り、作業効率の向上を図ることができるとともに
強度的にも従来の方法による場合と同等の強度を
保持することができるため、例えば道路橋等の利
用に効果的である。 As described above, according to the method for joining PC concrete plates according to the present invention, spaces with different depths are formed at the joint, and reinforcing bars are placed within these spaces at different buried heights. Because reinforcement can be applied, construction is easier than with conventional reinforcement methods, and work efficiency can be improved while maintaining the same strength as with conventional methods. Therefore, it is effective for use on road bridges, etc., for example.
第１図はPCコンクリート板を利用した道路橋
を示す平面図、第２図は従来のPCコンクリート
板の一例を示す斜視図、第３図は従来のPCコン
クリート板の接合部を示す断面図、第４図は本発
明の実施に使用するPCコンクリート板の一実施
例を示す斜視図、第５図は本発明に係るPCコン
クリート板の接合方法の一実施例を示す斜視図、
第６図はPCコンクリート板の接合部を示す平面
図、第７図は第６図のＡ−Ａ線断面図、第８図は
第６図のＢ−Ｂ線断面図、第９図乃至第１１図は
本発明の他の接合方法を示し、第９図は接合部を
示す平面図、第１０図は第９図のＣ−Ｃ線断面
図、第１１図は第９図のＤ−Ｄ線断面図、第１２
図乃至第１４図は本発明の別の接合方法を示し、
第１２図は接合部を示す平面図、第１３図は第１
２図のＥ−Ｅ線断面図、第１４図は第１２図のＦ
−Ｆ線断面図である。
２……PCコンクリート板、５……接合部、１
０……凹部、１２……補強筋、１３……膨張性コ
ンクリート。
Fig. 1 is a plan view showing a road bridge using a PC concrete board, Fig. 2 is a perspective view showing an example of a conventional PC concrete board, and Fig. 3 is a sectional view showing a joint of a conventional PC concrete board. FIG. 4 is a perspective view showing an example of a PC concrete plate used in carrying out the present invention, FIG. 5 is a perspective view showing an example of a method for joining PC concrete plates according to the present invention,
Fig. 6 is a plan view showing the joints of PC concrete plates, Fig. 7 is a sectional view taken along the line A-A in Fig. 6, Fig. 8 is a sectional view taken along the line B-B in Fig. 6, and Figs. 11 shows another joining method of the present invention, FIG. 9 is a plan view showing the joining part, FIG. 10 is a sectional view taken along the line CC in FIG. 9, and FIG. 11 is a sectional view taken along the line D-D in FIG. 9. Line sectional view, 12th
Figures 14 to 14 show another joining method of the present invention,
Figure 12 is a plan view showing the joint, Figure 13 is the first
2 is a sectional view taken along line E-E, and Figure 14 is a cross-sectional view taken along line F in Figure 12.
-F line sectional view. 2...PC concrete plate, 5...Joint part, 1
0...Recess, 12...Reinforcement bar, 13...Expansible concrete.
Claims (1)
複数個並設し、隣接するPCコンクリート板との
接合空間部にコンクリートを充填するPCコンク
リート板の接合方法において、隣接するPCコン
クリート板との接合部にその長手方向に沿つて深
さの異なる空間部を形成し、かつ、この空間部に
は、埋設高さが異なるように補強筋を複数個配設
し、しかる後該空間部にコンクリートを充填して
接合したことを特徴とするPCコンクリート板の
接合方法。 ２ 空間部は、PCコンクリート板の側部長手方
向に沿つて形成した深さの異なる複数個の凹部
と、このPCコンクリート板に隣接する他のPCコ
ンクリート板の同一深さの凹部とを合致させて形
成したことを特徴とする特許請求の範囲第１項記
載のPCコンクリート板の接合方法。 ３ 凹部はPCコンクリート板の長手方向に沿つ
て交互に深さが異なつていることを特徴とする特
許請求の範囲第２項記載のPCコンクリート板の
接合方法。 ４ 補強筋はPCコンクリート板の長手方向に沿
つてその埋設高さが交互に異なるように配設した
ことを特徴とする特許請求の範囲第３項記載の
PCコンクリート板の接合方法。 ５ 空間部に充填するコンクリートは膨張性コン
クリートであることを特徴とする特許請求の範囲
第１項記載のPCコンクリート板の接合方法。[Claims] 1. In a method for joining PC concrete plates, in which a plurality of PC concrete plates are arranged in parallel along the longitudinal direction and concrete is filled in a joint space between the adjacent PC concrete plates, A space with different depths is formed along the longitudinal direction at the joint with the plate, and a plurality of reinforcing bars are arranged in this space so that the buried heights are different, and then the space is closed. A method for joining PC concrete plates, characterized in that the parts are filled with concrete and then joined. 2. The space is created by aligning multiple recesses of different depths formed along the longitudinal direction of the side of the PC concrete plate with recesses of the same depth on other PC concrete plates adjacent to this PC concrete plate. A method for joining PC concrete plates according to claim 1, characterized in that the PC concrete plates are formed by 3. The method for joining PC concrete plates according to claim 2, wherein the recesses have different depths alternately along the longitudinal direction of the PC concrete plate. 4. The method according to claim 3, characterized in that the reinforcing bars are arranged so that their burial heights are alternately different along the longitudinal direction of the PC concrete plate.
How to join PC concrete plates. 5. The method for joining PC concrete plates according to claim 1, wherein the concrete filled in the space is expandable concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075380A JPS56167041A (en) | 1980-05-29 | 1980-05-29 | Joining of pc concrete panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7075380A JPS56167041A (en) | 1980-05-29 | 1980-05-29 | Joining of pc concrete panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56167041A JPS56167041A (en) | 1981-12-22 |
| JPS6250617B2 true JPS6250617B2 (en) | 1987-10-26 |
Family
ID=13440580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7075380A Granted JPS56167041A (en) | 1980-05-29 | 1980-05-29 | Joining of pc concrete panel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56167041A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643616U (en) * | 1987-06-29 | 1989-01-11 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02261147A (en) * | 1989-03-31 | 1990-10-23 | Shimizu Corp | Structure of large reinforced concrete slub |
| JP5718133B2 (en) * | 2011-04-08 | 2015-05-13 | 横河工事株式会社 | Precast floor slab and its joint structure |
| JP6567277B2 (en) * | 2015-01-19 | 2019-08-28 | 鹿島建設株式会社 | Connection structure and precast block |
-
1980
- 1980-05-29 JP JP7075380A patent/JPS56167041A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS643616U (en) * | 1987-06-29 | 1989-01-11 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS56167041A (en) | 1981-12-22 |
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