JP3148823B2 - Slab formwork method - Google Patents

Slab formwork method

Info

Publication number
JP3148823B2
JP3148823B2 JP21173595A JP21173595A JP3148823B2 JP 3148823 B2 JP3148823 B2 JP 3148823B2 JP 21173595 A JP21173595 A JP 21173595A JP 21173595 A JP21173595 A JP 21173595A JP 3148823 B2 JP3148823 B2 JP 3148823B2
Authority
JP
Japan
Prior art keywords
spacer material
girder
jack
slab
ground
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 - Fee Related
Application number
JP21173595A
Other languages
Japanese (ja)
Other versions
JPH0959924A (en
Inventor
行正 前川
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.)
Kajima Corp
Original Assignee
Kajima Corp
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 Kajima Corp filed Critical Kajima Corp
Priority to JP21173595A priority Critical patent/JP3148823B2/en
Publication of JPH0959924A publication Critical patent/JPH0959924A/en
Application granted granted Critical
Publication of JP3148823B2 publication Critical patent/JP3148823B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Bridges Or Land Bridges (AREA)
  • Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、高架橋などの工事
において、スラブコンクリートを打設する際のスラブ型
枠工法に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slab formwork method for placing slab concrete in a work such as a viaduct.

【0002】[0002]

【従来の技術】高架橋を例に説明すると、図10、図11に
示すように橋脚1の上にコンクリートスラブ2が施工さ
れるが、このコンクリートスラブ2は橋脚1を先行施工
した後で、この橋脚1の上に架設される。
2. Description of the Related Art Taking a viaduct as an example, a concrete slab 2 is constructed on a pier 1 as shown in FIG. 10 and FIG. It is erected on the pier 1.

【0003】そして前記コンクリートスラブ2の施工で
のスラブコンクリートの打設を梁式型枠支保工で施工す
る場合は、橋脚1にブラケット3を取付け、このブラケ
ット3で受桁4を受けるとともに受桁4で主桁(梁式型
枠支保工)5を支承し、その上にスラブ型枠6を配置す
る。
When the concrete slab 2 is cast by slab concrete by beam-type form support, a bracket 3 is attached to the pier 1 and the bracket 3 receives the receiving girder 4 and the girder receiving girder. At 4, a main girder (beam-type form support) 5 is supported, and a slab form 6 is arranged thereon.

【0004】[0004]

【発明が解決しようとする課題】このようにスラブ型枠
の組立ては橋脚1上部での高所作業となり、そのための
足場の架設など手数と時間を要し、また、常に高所作業
を伴う危険なものである。
As described above, assembling the slab formwork requires work at a high place above the pier 1, which requires time and effort such as erection of a scaffold, and also involves a risk of always working at a high place. It is something.

【0005】本発明の目的は前記従来例の不都合を解消
し、高所作業を減少させることができるので、安全作業
が確保でき、また、簡易な設備で実現できるので工費も
低廉ですみ、工期も短縮できるスラブ型枠工法を提供す
ることにある。
An object of the present invention is to solve the above-mentioned disadvantages of the prior art and to reduce the work at a high place, so that a safe work can be ensured. Another object of the present invention is to provide a slab form method capable of shortening the time.

【0006】[0006]

【課題を解決するための手段】本発明は前記目的を達成
するため、地上にセットしたスペーサー材の上に受桁を
組み、さらにこの受桁で支承して主桁を組み、主桁の上
にスラブ型枠を設置する、また、スペーサー材の脇で受
桁の下には油圧のジャッキをセットし、ジャッキを伸長
して受桁、主桁、スラブ型枠をジャッキアップにより上
昇させ、スペーサー材と受桁との間に新たなスペーサー
材を段積みして挿入し、挿入したスペーサー材の横に張
り出す張出部分となるスペーサー材を結合し、ジャッキ
を縮小させ、スペーサー材で受桁、主桁、スラブ型枠を
仮受けするとともに、ジャッキは外して張出部分となる
スペーサー材の下にセットし、また、張出部分となるス
ペーサー材の反対側にも張出部分となるスペーサー材を
結合する、このようにジャッキの伸縮とスペーサー材の
下段への挿入および左右張出部分のセット、およびジャ
ッキの移動・再セットを適宜繰り返して、所定の高さま
で受桁、主桁、スラブ型枠をジャッキアップにより上昇
させ、スラブ型枠上にスラブコンクリート打設後は前記
ジャッキアップにより上昇させる動作の逆のジャッキダ
ウンにより下降させる動作となり、最初に地上にセット
したスペーサー材上のスペーサー材より順次撤去してい
く、そして最初に地上にセットしたスペーサー材のみに
なった段階で、受桁、主桁、スラブ型枠を地上で解体す
ることを要旨とするものである。
According to the present invention, in order to achieve the above object, a receiving girder is assembled on a spacer material set on the ground, and a main girder is supported by the receiving girder. Install a slab formwork on the side of the spacer material, set a hydraulic jack under the girder, and extend the jack to raise the girder, main girder, and slab formwork by jacking up the spacer. A new spacer material is stacked and inserted between the material and the girder, and the spacer material that becomes the overhanging part that protrudes beside the inserted spacer material is joined, the jack is reduced, and the girder is received with the spacer material , The main girder and the slab formwork are temporarily received, and the jack is removed and set under the spacer material that will be the overhanging part, and the spacer that will also be the overhanging part on the opposite side of the spacer material that will be the overhanging part Join the wood The jack girder, main girder, and slab formwork are raised to the specified height by jacking up and down by repeatedly expanding and contracting the jack, inserting the spacer material into the lower row, setting the left and right overhanging parts, and moving and resetting the jack as necessary. After the slab concrete is cast on the slab formwork, it becomes an operation of lowering by jack-down opposite to the operation of raising by jack-up, and is sequentially removed from the spacer material on the spacer material set first on the ground, The gist is to disassemble the receiving girder, the main girder, and the slab formwork on the ground when only the spacer material initially set on the ground is used.

【0007】本発明によれば、受桁、主桁等の桁および
スラブ型枠の組立てを地上で行い、これをジャッキアッ
プにより上昇させるので、高い所で受桁、主桁等の桁お
よびスラブ型枠の組立てを行う必要はない。また、解体
においてもジャッキダウンにより下降させてから地上で
解体するので同様に高所作業を減少させることができ
る。
According to the present invention, the girder such as the girder, the main girder, and the slab formwork are assembled on the ground and raised by jacking up. There is no need to assemble the formwork. Also, in dismantling, the work is lowered by jack-down and then dismantled on the ground, so that work in high places can be similarly reduced.

【0008】これに加えて、ジャッキとスペーサー材と
の組み合わせで、ジャッキアップもしくはジャッキダウ
ンを行うジャッキは、ストロークが段積みまたは解体す
るスペーサー材を間に挿入・または抜取る長さの小型の
ものですみ、このような汎用性のある資材の利用で工費
の節減が図れる。
In addition, a jack for jacking up or jacking down in combination with a jack and a spacer material is a small jack having a length for inserting or removing a spacer material having a stroke to be stacked or disassembled. Thus, the use of such versatile materials can reduce construction costs.

【0009】[0009]

【発明の実施の形態】以下、図面について本発明の実施
の形態を詳細に説明する。図1〜図9は本発明の1実施
形態として各工程を示す正面図であり、本実施形態は前
記図10、図11に示すようなスラブコンクリートの打設を
梁式型枠支保工で施工する場合で、図中1は橋脚、4は
受桁、5は梁式型枠支保工としての主桁、6はスラブ型
枠である。
Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 to FIG. 9 are front views showing respective steps as one embodiment of the present invention. In this embodiment, a slab concrete is cast as shown in FIGS. In the figure, 1 is a pier, 4 is a girder, 5 is a main girder as a beam-type form support, and 6 is a slab form.

【0010】図1に示すように、通常山留め材として使
用されているH形鋼( 300× 300×300)をスペーサー
材71 として地上にセットして、その上に受桁4を組
み、さらにこの受桁4で支承して主桁5を組み、主桁5
の上にスラブ型枠6を設置する。これらの型枠組みは全
て地上で行うことができる。また、スペーサー材71
脇で受桁4の下には油圧のジャッキ8をセットする。
[0010] As shown in FIG. 1, H-section steel that is normally used as earth retaining member a (300 × 300 × 300) is set on the ground as the spacer member 71, set the受桁4 thereon, further The main girder 5 is assembled by supporting the receiving girder 4 and the main girder 5
The slab formwork 6 is set on the. All of these formwork can be done on the ground. Further, to set the hydraulic jack 8 under受桁4 beside the spacer member 71.

【0011】このジャッキ8はスペーサー材71 と受桁
4との間に新たなスペーサー材を挿入できる程度のスト
ロークのものである。
[0011] The jack 8 is of a stroke enough to insert a new spacer material between the spacer member 71 and受桁4.

【0012】図2に示すようにジャッキ8を伸長して受
桁4、主桁5、スラブ型枠6をそのままジャッキアップ
により上昇させ、図3に示すように、スペーサー材71
と受桁4との間に新たなスペーサー材72 をスペーサー
材71 の上に段積みするようにして挿入する。このスペ
ーサー材72 は接地するスペーサー材71 に対して横に
張り出す張出部分となるスペーサー材72 ′を結合して
いる。
[0012] extends the jack 8, as shown in FIG. 2受桁4, main girders 5, is raised by as jack up the slab form 6, as shown in FIG. 3, the spacer member 7 1
The new spacer material 7 2 inserted so as to be staked on the spacer member 71 between the受桁4 and. The spacer material 7 2 is attached to the spacer material 7 2 'which is a protruding portion protruding laterally with respect to the spacer member 71 to be grounded.

【0013】ジャッキ8を縮小させ、スペーサー材
1 , 72 で受桁4、主桁5、スラブ型枠6を仮受けす
るとともに、図4に示すようにこのジャッキ8は外して
張出部分となるスペーサー材72 ′の下にセットする。
また、スペーサー材72 のスペーサー材72 ′を結合し
た反対側にもスペーサー材72 ″を結合する。
[0013] to shrink the jack 8, the spacer member 71, 7 2受桁4, main girders 5, as well as receiving a slab form 6 temporary, overhanging portions disconnect the jack 8, as shown in FIG. 4 Is set under the spacer material 7 2 ′.
Also binds the spacer material 7 2 "on the other side attached to the spacer material 7 2 of the spacer member 7 2 '.

【0014】図5に示すように、ジャッキ8を伸長して
スペーサー材72 , 72 ′,72 ″とともに受桁4、主
桁5、スラブ型枠6をジャッキアップにより上昇させ、
スペーサー材72 ,72 ′,72 ″とスペーサー材71
との間に新たなスペーサー材73 と張出部分となるスペ
ーサー材73 ′をセットする。
As shown in FIG. 5, the jack 8 is extended to raise the receiving girder 4, the main girder 5, and the slab form 6 together with the spacer members 7 2 , 7 2 ′, 7 2 ″ by jacking up.
The spacer materials 7 2 , 7 2 ′, 7 2 ″ and the spacer material 7 1
A new spacer material 7 3 and a spacer material 7 3 ′ serving as an overhanging portion are set between them.

【0015】図6に示すように、ジャッキ8を縮小さ
せ、スペーサー材71 ,72 ,73 で受桁4、主桁5、
スラブ型枠6を仮受けするとともに、スペーサー材73
のスペーサー材73 ′を結合した反対側にもスペーサー
材73 ″を結合し、図7に示すようにジャッキ8をスペ
ーサー材73 ′の下に移動する。
As shown in FIG. 6, the jack 8 is reduced, and the spacers 7 1 , 7 2 , 7 3 receive the receiving beam 4, the main beam 5,
While temporarily receiving the slab formwork 6, the spacer material 7 3
Spacer member 7 3 'to the opposite side bonded to bind a spacer member 7 3 ", the jack 8, as shown in FIG. 7 the spacer member 7 3' moves underneath the.

【0016】図8に示すように、ジャッキ8を伸長して
スペーサー材72 ,72 ′,72 ″,73 ,73 ′,7
3 ″とともに受桁4、主桁5、スラブ型枠6をジャッキ
アップにより上昇させ、さらに、スペーサー材73 ,7
3 ″とスペーサー材71 との間に新たなスペーサー材7
4 と張出部分となるスペーサー材74 ′をセットする。
As shown in FIG. 8, the jack 8 is extended to extend the spacer members 7 2 , 7 2 ′, 7 2 ″, 7 3 , 7 3 ′, 7.
3 ", the receiving girder 4, the main girder 5, and the slab form 6 are raised by jacking-up, and the spacer members 7 3 , 7
New spacer material 7 between 3 ″ and spacer material 7 1
4 and a spacer material 7 4 ′ to be an overhang portion are set.

【0017】以下、同様な操作を繰り返して、図9に示
すように所定の高さまで受桁4、主桁5、スラブ型枠6
をジャッキアップにより上昇させ、そのまま固定する
か、ブラケット等を橋脚1に取付けてこれで受け直す。
Hereinafter, the same operation is repeated to receive the receiving girder 4, the main girder 5, the slab form 6 to a predetermined height as shown in FIG.
Is raised by jacking up and fixed as it is, or a bracket or the like is attached to the pier 1 and received again.

【0018】スラブ型枠6を使用してのスラブコンクリ
ートを打設し、これが硬化後は解体となるが、解体作業
は前記ジャッキアップにより上昇させる動作の逆のジャ
ッキダウンにより下降させる動作となり、スペーサー材
1 上のスペーサー材7n ,7n ′,7n ″より順次撤
去していく。
The slab concrete is cast using the slab formwork 6, which is dismantled after hardening, but the dismantling operation is the operation of lowering by jack-down, which is the reverse of the operation of raising by jack-up. spacer material 7 n on the wood 7 1, 7 n ', successively removed from 7 n ".

【0019】そしてスペーサー材71 のみになった段階
で、受桁4、主桁5、スラブ型枠6を地上で解体する。
[0019] and at the stage of becoming only to the spacer material 7 1,受桁4, the main girder 5, to dismantle the slab-type frame 6 on the ground.

【0020】なお、前記実施形態は高架橋でのスラブコ
ンクリートの打設を梁式型枠支保工で施工する場合につ
いて説明したが、それ以外の構造物でもスラブコンクリ
ートを高所で打設する場合のすべての型枠設置に適用で
きる。
In the above-described embodiment, the case where the slab concrete is cast at the viaduct by the beam-type form support is described. However, the case where the slab concrete is cast at a high place in other structures is also described. Applicable to all formwork installations.

【0021】[0021]

【発明の効果】以上述べたように本発明のスラブ型枠工
法は、高所作業を減少させることができるので、安全作
業が確保でき、また、簡易な設備で実現できるので工費
も低廉ですみ、工期も短縮できるものである。
As described above, the slab formwork method of the present invention can reduce work in high places, thereby ensuring safe work, and can be realized with simple equipment, so that the work cost is low. The construction period can be shortened.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明のスラブ型枠工法の1実施形態を示す第
1工程の正面図である。
FIG. 1 is a front view of a first step showing one embodiment of a slab formwork method of the present invention.

【図2】本発明のスラブ型枠工法の1実施形態を示す第
2工程の正面図である。
FIG. 2 is a front view of a second step showing one embodiment of the slab formwork method of the present invention.

【図3】本発明のスラブ型枠工法の1実施形態を示す第
3工程の正面図である。
FIG. 3 is a front view of a third step showing one embodiment of the slab formwork method of the present invention.

【図4】本発明のスラブ型枠工法の1実施形態を示す第
4工程の正面図である。
FIG. 4 is a front view of a fourth step showing one embodiment of the slab formwork method of the present invention.

【図5】本発明のスラブ型枠工法の1実施形態を示す第
5工程の正面図である。
FIG. 5 is a front view of a fifth step showing one embodiment of the slab formwork method of the present invention.

【図6】本発明のスラブ型枠工法の1実施形態を示す第
6工程の正面図である。
FIG. 6 is a front view of a sixth step showing one embodiment of the slab formwork method of the present invention.

【図7】本発明のスラブ型枠工法の1実施形態を示す第
7工程の正面図である。
FIG. 7 is a front view of a seventh step showing one embodiment of the slab formwork method of the present invention.

【図8】本発明のスラブ型枠工法の1実施形態を示す第
8工程の正面図である。
FIG. 8 is a front view of an eighth step showing one embodiment of the slab formwork method of the present invention.

【図9】本発明のスラブ型枠工法の1実施形態を示す上
昇時の最終工程の正面図である。
FIG. 9 is a front view of a final step when ascending showing one embodiment of the slab formwork method of the present invention.

【図10】高架橋でスラブコンクリートの打設を梁式型
枠支保工で施工する場合の側面図である。
FIG. 10 is a side view of a case where slab concrete is cast with a viaduct by a beam form support.

【図11】図10のA−A線断面図である。FIG. 11 is a sectional view taken along line AA of FIG. 10;

【符号の説明】[Explanation of symbols]

1…橋脚 2…コンクリー
トスラブ 3…ブラケット 4…受桁 5…主桁 6…スラブ型枠 71 ,72 ,73 〜7n …スペーサー材 71 ′,72 ′,73 ′〜7n ′…スペーサー材 71 ″,72 ″,73 ″〜7n ″…スペーサー材 8…ジャッキ
1 ... pier 2 ... concrete slab 3 ... bracket 4 ...受桁5 ... main beam 6 ... slab form 7 1, 7 2, 7 3 to 7 n ... spacer material 7 1 ', 7 2', 7 3 'to 7 n '... spacer material 7 1 ", 7 2", 7 3 "~7 n" ... spacer material 8 ... jack

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 地上にセットしたスペーサー材の上に受
桁を組み、さらにこの受桁で支承して主桁を組み、主桁
の上にスラブ型枠を設置する、また、スペーサー材の脇
で受桁の下には油圧のジャッキをセットし、ジャッキを
伸長して受桁、主桁、スラブ型枠をジャッキアップによ
り上昇させ、スペーサー材と受桁との間に新たなスペー
サー材を段積みして挿入し、挿入したスペーサー材の横
に張り出す張出部分となるスペーサー材を結合し、ジャ
ッキを縮小させ、スペーサー材で受桁、主桁、スラブ型
枠を仮受けするとともに、ジャッキは外して張出部分と
なるスペーサー材の下にセットし、また、張出部分とな
るスペーサー材の反対側にも張出部分となるスペーサー
材を結合する、このようにジャッキの伸縮とスペーサー
材の下段への挿入および左右張出部分のセット、および
ジャッキの移動・再セットを適宜繰り返して、所定の高
さまで受桁、主桁、スラブ型枠をジャッキアップにより
上昇させ、スラブ型枠上にスラブコンクリート打設後は
前記ジャッキアップにより上昇させる動作の逆のジャッ
キダウンにより下降させる動作となり、最初に地上にセ
ットしたスペーサー材上のスペーサー材より順次撤去し
ていく、そして最初に地上にセットしたスペーサー材の
みになった段階で、受桁、主桁、スラブ型枠を地上で解
体することを特徴としたスラブ型枠工法。
1. A girder is assembled on a spacer material set on the ground, and a main girder is assembled by being supported by the girder. A slab form is set on the main girder. Set the hydraulic jack under the girder, extend the jack and raise the girder, main girder, and slab form by jacking up, and place a new spacer material between the spacer material and the girder. Stack and insert, combine the spacer material that becomes the overhang part that protrudes to the side of the inserted spacer material, reduce the jack, temporarily receive the girder, main girder, slab formwork with the spacer material, and jack Is removed and set under the spacer material that becomes the overhanging part, and the spacer material that becomes the overhanging part is also connected to the opposite side of the spacer material that becomes the overhanging part, in this way the expansion and contraction of the jack and the spacer material Insert the lower part Repeat the setting of the left and right overhanging parts, and the movement and resetting of the jack as necessary, raise the girder, main girder, and slab form to the predetermined height by jacking up, and after placing slab concrete on the slab form Is the operation of lowering by jack-down, which is the reverse of the operation of raising by jack-up.The spacer material is first removed sequentially from the spacer material on the spacer material set on the ground, and only the spacer material set on the ground first is removed. A slab formwork method characterized in that the receiving girder, main girder, and slab formwork are dismantled on the ground at the stage.
JP21173595A 1995-08-21 1995-08-21 Slab formwork method Expired - Fee Related JP3148823B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21173595A JP3148823B2 (en) 1995-08-21 1995-08-21 Slab formwork method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21173595A JP3148823B2 (en) 1995-08-21 1995-08-21 Slab formwork method

Publications (2)

Publication Number Publication Date
JPH0959924A JPH0959924A (en) 1997-03-04
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JP5631010B2 (en) * 2010-01-12 2014-11-26 株式会社四国総合研究所 Lift device and method for restoring inclined object
CN103233428A (en) * 2013-05-02 2013-08-07 中国十九冶集团有限公司 Bridge pier column capping beam formwork dismantling method
CN106087762B (en) * 2016-08-09 2018-01-16 杭州江润科技有限公司 Pier stud synchronously pours the construction method of formwork erecting structure with straining beam

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