JPS6022127B2 - Main girder launching equipment for bridges, etc. - Google Patents
Main girder launching equipment for bridges, etc.Info
- Publication number
- JPS6022127B2 JPS6022127B2 JP9796282A JP9796282A JPS6022127B2 JP S6022127 B2 JPS6022127 B2 JP S6022127B2 JP 9796282 A JP9796282 A JP 9796282A JP 9796282 A JP9796282 A JP 9796282A JP S6022127 B2 JPS6022127 B2 JP S6022127B2
- Authority
- JP
- Japan
- Prior art keywords
- main girder
- rod
- bridges
- center hole
- jack
- 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
Landscapes
- Bridges Or Land Bridges (AREA)
Description
【発明の詳細な説明】
本発明は橋梁や高架道路橋等の橋桁（主桁）を橋脚上に
支承するための支承装置を交換または補修する場合に使
用する主桁江上装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a main girder lifting device used when replacing or repairing a support device for supporting a bridge girder (main girder) on a pier of a bridge or elevated road bridge.
近時、橋梁または道路橋等においては、交通量の著しい
増加および車両総重量の増加等に起因して、橋桁を橋脚
上に支承するための支承装置（シュー）の損傷が増加す
る傾向にあるため、現用の支承装置を交換または補修す
る必要がある場所が多くなりつつある。In recent years, damage to the supporting devices (shoes) that support bridge girders on piers has been increasing in bridges, road bridges, etc. due to a significant increase in traffic volume and increase in total vehicle weight. As a result, existing bearing systems are increasingly required to be replaced or repaired.
第１図および第２図は、この種橋梁の主桁１を橋脚２上
に支承装置（シュー）３により支承する部分の略図を示
すもので、この場合、支承装置３を交換または補修する
には、橋脚２上と主桁１との間に第１図に示すように、
ジャッキ４を介挿し、主桁１を若干江上させる必要があ
る。Figures 1 and 2 are schematic diagrams of the part in which the main girder 1 of this type of bridge is supported on the pier 2 by a support device (shoe) 3. In this case, when the support device 3 is replaced or repaired, As shown in Figure 1, between the top of the pier 2 and the main girder 1,
It is necessary to insert a jack 4 and raise the main girder 1 slightly.
しかしながら、上述のよ・うにするには、橋脚２上と主
桁１との間隔日が大で、この間にジャッキ４が挿入可能
でなければならない。しかしながら多くの現場ではこの
間隔日が比較的小さく、ジャッキを挿入できないのが実
情である。そしてこのような場合には、第２図に示すよ
うに、主桁１に特製のブラケット５を取り付け、このブ
ラケット５と橋脚２との間にジャッキ４を装置して主桁
１を江上する方法もあるが、このようにするにはブラケ
ット５を特に製作して主桁１に取り付けるという余分の
作業が増加するという問題点がある。However, in order to do the above, there is a long interval between the top of the pier 2 and the main girder 1, and the jack 4 must be able to be inserted during this time. However, in many sites, this interval is relatively small and it is not possible to insert a jack. In such a case, as shown in Fig. 2, a specially made bracket 5 is attached to the main girder 1, and a jack 4 is installed between this bracket 5 and the pier 2 to raise the main girder 1. However, there is a problem in that this increases the extra work of specially manufacturing the bracket 5 and attaching it to the main girder 1.
本発明は上述の問題点を解消するためなされたもので、
橋脚と主桁との間隔が小さい場合でも、設置可能である
上に、江上後は油圧シリンダを簡単に切り離して仮受け
台として使用できる経済的にも有利な江上装置を提供す
ることを目的としたものである。The present invention has been made to solve the above-mentioned problems.
The objective is to provide an economically advantageous Egami device that can be installed even when the distance between the pier and the main girder is small, and also allows the hydraulic cylinder to be easily separated and used as a temporary cradle after Egami. This is what I did.
以下、第３図〜第６図について本発明の実施例０を説明
する。Embodiment 0 of the present invention will be described below with reference to FIGS. 3 to 6.
図中１は橋梁等の主桁、２は橋脚である。本発明におい
ては、重合する上沓（上方シュー）６と下沓（下方シュ
ー）７との間の両側間隙部に、それぞれ外方へ向って拡
開する探聞隙Ａ，クＡを形成し、これら両側の襖間隙Ａ
，Ａにそれぞれ裸８，８を挿入し、これら２個の標８，
８を貫通するロッド（ＰＣ鋼綾）９の一端部（第３図の
左端部）を座金１０およびナット１１を介して一方（第
３図の左側）の襖８に固定すると共に、他方（第３図の
右側）の楼８より外方へ突出するロッド９の突出部に座
金１２を介して仮受け用固定ナット１３を螺合し、この
ロッド９と抜手（カップラ−）１４を介して接続した延
長ロッド（ＰＣ鋼榛）１５にセンターホ−ルジヤツキ１
６を鉄菱する。In the figure, 1 is the main girder of a bridge, etc., and 2 is the bridge pier. In the present invention, probe gaps A and A that expand outward are formed in the gaps on both sides between the overlapping upper shoe (upper shoe) 6 and lower shoe (lower shoe) 7, respectively. , these sliding door gaps A on both sides
, A respectively insert bare 8 and 8, and these two marks 8,
One end (left end in FIG. 3) of a rod (PC steel twill) 9 penetrating through the sliding door 8 is fixed to one (left side in FIG. 3) of the sliding door 8 via a washer 10 and a nut 11. A fixing nut 13 for temporary support is screwed into the protruding part of the rod 9 which protrudes outward from the tower 8 (on the right side of FIG. Center hole jack 1 to the connected extension rod (PC steel rod) 15
Tetsubishi 6.
なお１７は核８とセンターホールジャッキ１６との間に
ディスタンスピースとして介挿した中空筒状のラムチェ
アーであり、１８はセンターホールジャッキ１６より外
方へ突出するロッド１５に座金１９を介して螺合したナ
ット、２０はセンターホールジャッキ１６を橋脚２上に
仮受けするパッキングである。第４図は上沓６の詳細を
示すもので、６ａは下面の左右に形成した懐斜面、６ｂ
はこの額斜面６ａのガイドエッジ、６ｃはこれらガイド
エッジ６ｂ上に固着して外方へ突出させた把手、６ｄは
前記ロッド９を挿適するための半円筒状のロッド挿通溝
である。Note that 17 is a hollow cylindrical ram chair inserted as a distance piece between the core 8 and the center hole jack 16, and 18 is a ram chair that is screwed into the rod 15 projecting outward from the center hole jack 16 through a washer 19. The assembled nut 20 is a packing that temporarily holds the center hole jack 16 on the pier 2. Figure 4 shows the details of the upper shoe 6, where 6a is the front slope formed on the left and right sides of the lower surface, 6b
6d is a guide edge of the forehead slope 6a, 6c is a handle fixed to these guide edges 6b and protrudes outward, and 6d is a semi-cylindrical rod insertion groove into which the rod 9 is inserted.
第５図は下沓７の詳細を示すもので、７ａは上面の左右
に形成した傾斜面、７ｂはこの頃斜面７ａのガイドエッ
ジ、７ｃはこれらガイドエッジ７ｂ上に固着して外方へ
突出させた把手、７ｄは前記ロッド９を挿適するための
半円筒状のロッド挿通溝である。FIG. 5 shows the details of the lower shoe 7, with 7a being the sloped surfaces formed on the left and right sides of the upper surface, 7b being the guide edges of the slope 7a, and 7c being fixed onto these guide edges 7b and protruding outward. The handle 7d is a semi-cylindrical rod insertion groove into which the rod 9 is inserted.
また第６図は襖８の詳細を示すもので、８ａは上下傾斜
面、８ｂはロッド挿通孔である。Further, FIG. 6 shows details of the sliding door 8, in which 8a is a vertically inclined surface, and 8b is a rod insertion hole.
つぎに上述のように構成した本発明装置の使用方法を説
明する。Next, a method of using the apparatus of the present invention constructed as described above will be explained.
まずこの装置を第３図に示すように橋脚２と主桁１との
間に設置し、センターホールジャッキ１６に油圧を供給
してロッド′１５を第３図の矢印Ｂの方向に引張ると、
左側の襖８が矢印Ｃのように移動すると共に、センター
ホールジャッキ１６の反力で右側の襖８が矢印Ｄの方向
に移動する。すなわち上沓６と下沓７との両側よりそれ
ぞれ襖８が進入するため、その挟作用により上沓６を介
して主桁１が上昇する。主桁１が所望量上昇したならば
、固定用ナット１３を締めつけることにより主桁１をそ
の位置に保持することができる。First, this device is installed between the pier 2 and the main girder 1 as shown in Fig. 3, and when hydraulic pressure is supplied to the center hole jack 16 and the rod '15 is pulled in the direction of arrow B in Fig. 3,
The left sliding door 8 moves in the direction of arrow C, and the right sliding door 8 moves in the direction of arrow D due to the reaction force of the center hole jack 16. That is, since the sliding door 8 enters from both sides of the upper shoe 6 and the lower shoe 7, the main girder 1 rises via the upper shoe 6 due to its pinching action. Once the main spar 1 has been raised the desired amount, the main spar 1 can be held in that position by tightening the fixing nuts 13.
したがってこの状態で、支承装置３の交換または補修作
業を行うことができるし、必要とすれば、一旦薮手１４
によりロッド９と延長ロッド１５とを分離して、センタ
ーホールジャッキ１６およびラムチェアー１７を外して
、他の作業現場で使用することができる。Therefore, in this state, the support device 3 can be replaced or repaired, and if necessary, the support device 3 can be replaced or repaired once.
By separating the rod 9 and extension rod 15, the center hole jack 16 and ram chair 17 can be removed and used at other work sites.
支承装置３の交換または補修作業が終了すれば、固定ナ
ット１３をゆるめることにより、主桁１を所定の位燈ま
で降下させることができる。When the replacement or repair work of the support device 3 is completed, the main girder 1 can be lowered to a predetermined position by loosening the fixing nut 13.
またこの場合、必要があれば、センターホールジャッキ
１６を上昇時と逆に操作すればよい。本発明は上述のよ
うに、センターホールジャッキ１６の水平方向の力を換
装鷹を介して垂直方向の力に変換するように構成したた
め、装置の高さ ／が低くなった。Moreover, in this case, if necessary, the center hole jack 16 may be operated in the opposite direction to that used when raising the vehicle. As described above, the present invention is configured to convert the horizontal force of the center hole jack 16 into a vertical force via the conversion jack, so that the height of the device is reduced.
このため本発明装置は、主桁１と橋脚２との間隔日が小
さい現場でも容易に設置できるという利点がある。また
本発明装置はセンターホールジャッキ１６を取り外して
他の現場で使用できるため、多数の場所で同時にこの装
置を使用する場合に、ジャッキ装置の個数は少なくてよ
いから、この点経済的にも非常に有利である。Therefore, the device of the present invention has the advantage that it can be easily installed even at sites where the interval between the main girder 1 and the pier 2 is small. Furthermore, since the device of the present invention can be used at other sites by removing the center hole jack 16, the number of jack devices may be small if the device is used in many locations at the same time, which is very economical. advantageous to
第１図は橋桁支承部の側面図、第２図はその正面図、第
３図は本発明装置の設置状態を示す正面図、第４図ａは
本発明装置の上沓の中央縦断正面図、同図ｂはその平面
図、同図ｃは同側面図、第５図ａは下沓の中央縦断正面
図、同図ｂはその平面図、同図ｃは同側面図、第６図ａ
は核の中央縦断面図、同図ｂはその平面図、同図ｃは同
側面図である。
１・・・・・・橋桁（主桁）、２・・・・・・橋脚、３
・…・・支承装置、４・・・・・・ジャッキ、５・・・
・・・ブラケツト、６・・・・・・上沓、７・・・・・
・下沓、８・・・・・・襖、９…・・・ロッド、１０・
・・・・・座金、１１…・・・ナット、１２・・・・・
・座金、１３・・・・・・固定ナット、１４・・・・・
・鞍手、１５・…・・延長ロッド、１６……センターホ
ールジャッキ、１７……ラムチヱアー。
第１図
第２図
第３図
第４図
第６図
第６図Fig. 1 is a side view of the bridge girder support, Fig. 2 is its front view, Fig. 3 is a front view showing the installed state of the device of the present invention, and Fig. 4a is a central vertical sectional front view of the upper shoe of the device of the present invention. , Figure b is a plan view of the same, Figure c is a side view of the same, Figure 5 a is a central longitudinal sectional front view of the lower shoe, Figure b is a plan view of the same, Figure c is a side view of the same, Figure 6 a
1 is a central vertical cross-sectional view of the nucleus, FIG. 1B is a plan view thereof, and FIG. 1...Bridge girder (main girder), 2...Bridge pier, 3
...Support device, 4...Jack, 5...
...Bracket, 6... Upper shoe, 7...
・Lower shoe, 8...Fusuma, 9...Rod, 10.
...Washer, 11...Nut, 12...
・Washer, 13...Fixing nut, 14...
・Saddle hand, 15...Extension rod, 16...Center hole jack, 17...Ram chair. Figure 1 Figure 2 Figure 3 Figure 4 Figure 6 Figure 6
Claims (1)
れ外方へ向つて拡開する楔間隙を形成し、これら両側の
楔間隙にそれぞれ楔を挿入し、これら２個の楔を貫通す
るロツドの一端部を一方の楔に固定すると共に、他方の
楔より外方へ突出するロツドの突出部に仮受け用固定ナ
ツトを螺合し、このロツドと接手を介して接続した延長
ロツドにデイスタンスピースとしてのラムチエアーを介
してセンターホールジヤツキを嵌装してなる橋梁等の主
桁扛上装置。1 Form wedge gaps that expand outward in the gaps on both sides between the upper and lower shoes that overlap, insert wedges into the wedge gaps on both sides, and connect these two wedges. One end of the penetrating rod is fixed to one of the wedges, and a temporary receiving fixing nut is screwed to the protrusion of the rod that protrudes outward from the other wedge, and an extension rod is connected to this rod via a joint. A main girder lifting device for bridges, etc., in which a center hole jack is fitted through a ram chair as a distance piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9796282A JPS6022127B2 (en) | 1982-06-08 | 1982-06-08 | Main girder launching equipment for bridges, etc. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9796282A JPS6022127B2 (en) | 1982-06-08 | 1982-06-08 | Main girder launching equipment for bridges, etc. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58218504A JPS58218504A (en) | 1983-12-19 |
| JPS6022127B2 true JPS6022127B2 (en) | 1985-05-31 |
Family
ID=14206293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9796282A Expired JPS6022127B2 (en) | 1982-06-08 | 1982-06-08 | Main girder launching equipment for bridges, etc. |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6022127B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11725105B2 (en) | 2018-02-20 | 2023-08-15 | Ticona Llc | Thermally conductive polymer composition |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2809114B2 (en) * | 1993-10-20 | 1998-10-08 | 松尾エンジニヤリング株式会社 | Lifting support method and bearing device for bridges etc. |
| JP4929083B2 (en) * | 2007-07-13 | 2012-05-09 | 日本車輌製造株式会社 | Jack receptacle and truss bridge support exchange method |
| JP5520156B2 (en) * | 2010-07-23 | 2014-06-11 | 鹿島建設株式会社 | Temporary receiving structure of structure and temporary receiving method |
| JP6501558B2 (en) * | 2015-02-27 | 2019-04-17 | 大成建設株式会社 | Seismic isolation repair method |
-
1982
- 1982-06-08 JP JP9796282A patent/JPS6022127B2/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11725105B2 (en) | 2018-02-20 | 2023-08-15 | Ticona Llc | Thermally conductive polymer composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS58218504A (en) | 1983-12-19 |
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