JP2022035152A - Slide construction method for rigid-frame structure - Google Patents

Slide construction method for rigid-frame structure Download PDF

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JP2022035152A
JP2022035152A JP2020139272A JP2020139272A JP2022035152A JP 2022035152 A JP2022035152 A JP 2022035152A JP 2020139272 A JP2020139272 A JP 2020139272A JP 2020139272 A JP2020139272 A JP 2020139272A JP 2022035152 A JP2022035152 A JP 2022035152A
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frame
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partial frame
slide
rigid
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JP7330646B2 (en
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俊之 川添
Toshiyuki Kawazoe
照政 藤野
Terumasa Fujino
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Tomoe Corp
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Abstract

To provide a slide construction method for a rigid-frame structure having high safety without generating horizontal force of a column base part by the dead weight of the rigid-frame structure.SOLUTION: Working platforms 2, 2 for assembling a partial frame 3 are installed at a specific position S so as to be movable on slide rails 1, 1. The girder G of the partial frame 3 is supported by the working platforms 2, 2, and is transported to a prescribed position on the slide rails 1, 1 with the lower end of the column in a lifted state. In the transported partial frame 3, the support of the girder G is released by jack-down, and the column base part is anchored on predetermined foundation columns f, f,.. and stands by itself. Before the column base part is placed on the foundation columns f, f,., a deviation from an accurate installation position of the column base part is corrected. The self-standing partial frame 3 and the previously installed partial frame 3 are connected. The working platforms 2, 2 are moved back on the slide rails 1, 1 to the specific position S for assembling the next partial frame 3.SELECTED DRAWING: Figure 1

Description

本発明は、ラーメン構造物を建方する場合に適用するスライド工法に関する。 The present invention relates to a slide method applied when constructing a rigid frame structure.

鉄道駅のプラットホーム上屋あるいは石炭等貯蔵物上屋などの長大な構造物を構築する建方工法として、スライド工法が採用されることがある。スライド工法は、これら建物の桁行が長大である場合、その部分架構を組立て場所にて組立て、仕上げ材等を取付けて順次送り出すことができるので、施工効率がよいとされている。 The slide method may be adopted as a construction method for constructing a long structure such as a platform shed of a railway station or a storage shed such as coal. The slide method is said to have good construction efficiency because when the girders of these buildings are long, the partial frame can be assembled at the assembly site, and finishing materials and the like can be attached and sent out in sequence.

前記構造物の張間方向はラーメン構造であることが多く、図11(a)に図示の柱脚がピン支持されたラーメン架構で説明すると、梁部の鉛直荷重wによって図11(b)に図示のような曲げモーメントMおよびMが発生し、柱脚部には外側に蹴り出そうとする力(以下、柱脚部水平力と称す)に対抗する水平反力Hが生じる。その大きさは、ラーメン架構の張間寸法が長い程大きくなる。 In many cases, the tension direction of the structure is a rigid frame structure, and when the rigid frame frame in which the column base shown in FIG. 11 (a) is supported by a pin is described, the vertical load w of the beam portion is shown in FIG. 11 (b). Bending moments M 1 and M 2 as shown in the figure are generated, and a horizontal reaction force H is generated in the column base portion against a force to kick outward (hereinafter referred to as a column base horizontal force). The size increases as the space between the rigid frame frames becomes longer.

従来、そのようなラーメン構造物をスライド工法にて建方する場合、その部分架構がスライド移動中も構造的に安定するように、前記柱脚部水平力を支持するための十分な水平剛性と強度を有する基礎を設けておく必要があった。 Conventionally, when such a rigid frame structure is constructed by the slide method, it has sufficient horizontal rigidity to support the horizontal force of the column base so that the partial frame is structurally stable even during the sliding movement. It was necessary to provide a strong foundation.

また、スライド用レールとして、鉛直荷重を受けるレールの他に、前記柱脚部水平力を直接受けて前記基礎に力を伝達するための水平力受けレールも必要であった。 Further, as a slide rail, in addition to a rail that receives a vertical load, a horizontal force receiving rail for directly receiving the horizontal force of the column base and transmitting the force to the foundation is also required.

更にまた、前記柱脚部水平力により、柱脚部が前記水平力受けレールに押し付けられながらスライド移動するため摩擦抵抗力が発生するので、より大きな牽引力が必要になり、そのため牽引設備が大掛かりになるという問題もあった。この問題は、牽引する部分架構が長くなりその重量がより重くなる程、その影響が大きくなる。 Furthermore, due to the horizontal force of the column base, the column base slides while being pressed against the horizontal force receiving rail, so that frictional drag is generated, which requires a larger traction force, which makes the traction facility large-scale. There was also the problem of becoming. The problem becomes greater as the towed partial frame becomes longer and its weight heavier.

このように、従来のスライド工法では、柱脚部水平力を処理するための前記基礎や水平力受けレールの設置費用に加え、牽引設備の能力増強とコストアップも考慮する必要があった。 As described above, in the conventional slide method, it is necessary to consider the capacity increase and cost increase of the traction equipment in addition to the installation cost of the foundation and the horizontal force receiving rail for processing the horizontal force of the column base.

また、スライド移動中においても、水平力受けレールには外側に拡がろうとする前記柱脚部水平力が常に作用しているので、十分な安全対策も必要であった。 Further, even during the slide movement, the horizontal force of the column base portion that tends to spread outward is always acting on the horizontal force receiving rail, so that sufficient safety measures are required.

スライド移動中における部分架構の前記柱脚部水平力を抑制する方法として、例えば、両側柱の柱脚部同士を張間方向につなぐテンション材を水平に設けかつ張力を導入して、柱脚部が水平方向に開こうとする大きな水平力と釣り合わせる工法が考えられる。この場合、両柱脚部をつなぐテンション材の高さ以上の既存物があれば干渉するので適用不可であり、また、張力導入装置等を、スライド移動が完了して柱脚部が定着されるまで、全ての柱脚部に対して存置しておく必要があるので、牽引設備以外に多額の仮設費用がかかる。 As a method of suppressing the horizontal force of the column base of the partial frame during slide movement, for example, a tension material for horizontally connecting the column bases of both columns in the tension direction is provided horizontally and tension is introduced to introduce the column base. A construction method that balances with the large horizontal force that tries to open in the horizontal direction can be considered. In this case, if there is an existing object that is higher than the height of the tension material connecting both column bases, it will interfere, so it is not applicable, and the tension introduction device etc. is not applicable because the slide movement is completed and the column base is fixed. Since it is necessary to keep it for all the column bases, a large amount of temporary cost is required in addition to the traction equipment.

ラーメン架構のスライド工法において、前記柱脚部水平力への対処に関する先行技術としては、例えば、特許文献1記載の発明がある。 In the slide construction method of the rigid frame frame, for example, there is an invention described in Patent Document 1 as a prior art relating to the coping with the horizontal force of the column base portion.

特許文献1記載の発明は以下のような工法である。1回目スライドの門型部分架構を、屋根梁部両端と柱部とをピン接合状態にて仮受けして組立て、その状態でその他各部材の接合部のボルトを本締めしてジャッキダウンし、屋根仕上げ等を取付けた後、屋根梁部両端に部材を追加してラーメン架構として完成させる。ラーメン架構となった前記門型部分架構は、スライドレール上を牽引装置によりスライド移動される。 The invention described in Patent Document 1 is a construction method as follows. Assemble the gate-shaped partial frame of the first slide by temporarily receiving both ends of the roof beam and the pillars in a pin-joined state, and in that state, fully tighten the bolts at the joints of the other members to jack down. After installing the roof finish, etc., add members to both ends of the roof beam to complete the ramen frame. The gate-shaped partial frame, which has become a rigid frame frame, is slid and moved on a slide rail by a traction device.

次に、前記スライド移動により空いた場所にて、新たな門型部分架構を、1回目と同様に屋根梁部両端をピン接合状態にて仮受けして組立て、前記スライド済みの門型部分架構とを連結する屋根部材をピン接合状態にて組立て、その状態にてジャッキダウンする。 Next, in a place vacated by the slide movement, a new gate-shaped partial frame is temporarily received and assembled with both ends of the roof beam portion in a pin-joined state in the same manner as the first time, and the slided gate-shaped partial frame is assembled. Assemble the roof member that connects with and in the pin-joined state, and jack down in that state.

その後、屋根仕上げ等を取付け、前記新たな門型部分架構の屋根梁部両端に部材を追加してラーメン架構とし、前記スライド済みと前記新たな門型部分架構とを連結する前記屋根部材を本締めして一体化する。そして、それら門型部分架構全体を、前記牽引装置より2回目のスライド移動をする。
以上の手順を必要回数繰り返す、大張間架構のスライド工法が開示されている。
After that, a roof finish or the like is attached, and members are added to both ends of the roof beam portion of the new gate-shaped partial frame to form a rigid frame frame, and the roof member that connects the already slid and the new gate-shaped partial frame is used as a book. Tighten and integrate. Then, the entire gate-shaped partial frame is slid for the second time from the traction device.
A slide method for an Obari frame frame that repeats the above procedure as many times as necessary is disclosed.

このスライド工法によれば、梁部の自重によって発生する柱脚部水平力がスライド移動中に生じないので、従来の前記問題は解消されるとしている。 According to this slide method, the horizontal force of the column base generated by the weight of the beam does not occur during the slide movement, so that the conventional problem can be solved.

この方法では、門型部分架構の組立てにおいて、屋根梁部両端と柱部とがピン接合状態でジャッキダウンし、屋根部の仕上げ材等を取付けた後、前記門型部分架構の屋根梁部両端に部材を追加してラーメン架構として自立させる。即ち、ラーメン架構が完成する前であって、梁部が単純梁状態の時に鉛直荷重が載荷されるので、ラーメン架構完成後に屋根部の仕上げ材等を取付ける場合よりも、梁部材サイズが大きく(重く)なり、その傾向は張間寸法が長い程著しい。 In this method, in the assembly of the gate-shaped partial frame, both ends of the roof beam portion and the pillar portion are jacked down in a pin-joined state, and after the finishing material of the roof portion is attached, both ends of the roof beam portion of the gate-shaped partial frame are attached. Add members to the roof to make it self-supporting as a ramen frame. That is, since a vertical load is applied before the rigid frame frame is completed and the beam is in a simple beam state, the beam member size is larger than when the finishing material of the roof is attached after the rigid frame frame is completed ( It becomes heavier), and the tendency becomes more remarkable as the length of the tension is longer.

本来、ラーメン構造の架構は、梁部と柱部とが剛接されているので、梁部両端部がピン接合状態の時よりも、部材に発生する最大曲げモーメントが小さいので、部材サイズを小さくすることができる。しかし、特許文献1記載の発明は、梁部の自重によって発生する柱脚部水平力を生じさせないことの代償として、その利点が発揮できずコストアップになるという問題があった。 Originally, in a rigid frame structure, the beam and column are rigidly connected, so the maximum bending moment generated in the member is smaller than when both ends of the beam are pin-joined, so the member size is smaller. can do. However, the invention described in Patent Document 1 has a problem that the advantage cannot be exhibited and the cost increases at the cost of not generating the horizontal force of the column base portion generated by the weight of the beam portion.

また、部分架構が連結されて長くなると、その牽引する重量が重くなるので、大きな容量の牽引装置が必要になるという問題もあった。 Further, when the partial frames are connected and lengthened, the weight to be towed becomes heavy, so that there is a problem that a towing device having a large capacity is required.

特許第6636091号Patent No. 6636091

本発明は、張間方向がラーメン構造の架構で、桁行が長大である構造物の建方工法として用いられることの多いスライド工法において、その部分架構のスライド移動中に、建物自重の作用による前記部分架構の柱脚部水平力を生じさせることなく、かつ牽引装置の能力が小容量でも足りる、ラーメン構造のスライド工法を提供するものである。 The present invention is a slide construction method that is often used as a construction method for a structure in which the span direction is a rigid frame structure and the girders are long. It provides a slide construction method of a rigid frame structure that does not generate a horizontal force at the column base of a partial frame and that the capacity of the traction device is sufficient even with a small capacity.

前記課題を解決するための本発明の第1の手段は、ラーメン構造物のスライド工法であって、
1)前記ラーメン構造物の部分架構を組立てる構台が、スライドレール上を移動可能に特定の組立位置に設置される工程。
2)前記組立位置に設置された前記構台において組立てられた前記部分架構は、その大梁部が前記構台によって支持され、かつ前記部分架構の柱脚部が宙に浮いた状態で、前記スライドレール上を所定位置まで運搬される工程。
3)前記所定位置に運搬済みの前記部分架構は、ジャッキダウンにより前記構台による支持が解除され、前記柱脚部が所定の基礎柱上に定着されて自立する工程。
以上の工程を含むことを特徴とするものである。
The first means of the present invention for solving the above-mentioned problems is a slide method of a rigid frame structure.
1) A process in which a frame for assembling a partial frame of the rigid frame structure is installed at a specific assembly position so as to be movable on a slide rail.
2) The partial frame assembled in the frame installed at the assembly position is on the slide rail with the girder portion supported by the frame and the column base portion of the partial frame floating in the air. The process of transporting to a predetermined position.
3) A step in which the partial frame that has been transported to the predetermined position is released from the support by the gantry by jacking down, and the column base portion is fixed on the predetermined foundation column to stand on its own.
It is characterized by including the above steps.

以上のように、本発明の手段によれば、スライド移動中において、部分架構の柱脚部は宙に浮いた状態なので柱脚部水平力は生じず、また、1回に牽引する部分架構は自立可能な最小単位でよいので、牽引装置は大きな容量を要しない。 As described above, according to the means of the present invention, since the column base portion of the partial frame is in a state of floating in the air during the slide movement, no horizontal force is generated in the column base portion, and the partial frame to be pulled at one time is The traction device does not require a large capacity because it may be the smallest unit that can stand on its own.

本発明の第2の手段は、ラーメン構造物のスライド工法であって、
1)前記ラーメン構造物の部分架構を組立てる構台が、スライドレール上を移動可能に特定の組立位置に設置される工程。
2)前記組立位置に設置された前記構台において組立てられた前記部分架構は、その大梁部が前記構台によって支持され、かつ前記部分架構の柱脚部が宙に浮いた状態で、前記スライドレール上を所定位置まで運搬される工程。
3)前記所定位置に運搬済みの前記部分架構がジャッキダウンされる前に、次の部分架構を組立てるための新たな構台が、前記特定の組立位置に設置され、次の部分架構が組立てられる工程。
4)前記次の部分架構は、その柱脚部が前記部分架構と同様に宙に浮いた状態で、前記スライドレール上を所定位置まで運搬され、1つ前に運搬済みの前記部分架構に連結され一体化される工程。
5)手順3)~4)が、少なくとも1回以上実行される工程。
6)連結され一体化された運搬済みの前記部分架構全てについて、ジャッキダウンにより、前記構台による支持が解除され、全ての前記柱脚部が所定の基礎柱上に定着されて自立する工程。
以上の工程を含むことを特徴とする、ラーメン構造物のスライド工法である。
The second means of the present invention is a slide method of a rigid frame structure.
1) A process in which a frame for assembling a partial frame of the rigid frame structure is installed at a specific assembly position so as to be movable on a slide rail.
2) The partial frame assembled in the frame installed at the assembly position is on the slide rail with the girder portion supported by the frame and the column base portion of the partial frame floating in the air. The process of transporting to a predetermined position.
3) A process in which a new frame for assembling the next partial frame is installed at the specific assembly position and the next partial frame is assembled before the partial frame that has been transported to the predetermined position is jacked down. ..
4) The next partial frame is transported to a predetermined position on the slide rail with its column base floating in the air in the same manner as the partial frame, and is connected to the previously transported partial frame. The process of being integrated.
5) A step in which steps 3) to 4) are executed at least once.
6) A step in which all the transported partial frames that have been connected and integrated are released from the support by the gantry by jacking down, and all the column bases are fixed on a predetermined foundation column to stand on their own.
It is a slide method of a rigid frame structure characterized by including the above steps.

以上のように、本発明の第2の手段によれば、第1の手段と同様、スライド移動中に部分架構の柱脚部水平力は生じない。 As described above, according to the second means of the present invention, as in the first means, the horizontal force of the column base of the partial frame is not generated during the slide movement.

また、本発明の第1の手段では、先行する部分架構が所定位置まで運搬され、ジャッキダウンされ、その柱脚部が定着されて自立し、その部分架構の支持を解除された構台が特定位置に戻されるまでの間、その特定の組立位置(以下、「特定位置」と称す。)において次の部分架構の組立てができないが、第2の手段ではその間に次の部分架構の組立てを進めることが可能になる。 Further, in the first means of the present invention, the preceding partial frame is transported to a predetermined position, jacked down, the column base is fixed and self-supporting, and the support of the partial frame is released at a specific position. The next partial frame cannot be assembled at the specific assembly position (hereinafter referred to as "specific position") until it is returned to, but the second means is to proceed with the assembly of the next partial frame in the meantime. Will be possible.

また、本発明に係るラーメン構造物のスライド工法において、ラーメン構造物の部分架構の柱脚部が、ジャッキダウンの際、所定の基礎柱上に載置される前に、前記柱脚部の正確な据付位置とのずれが、位置調整手段を用いて修正される工程を含んでもよい。ジャッキダウンの際、前記部分架構の柱脚部が所定の基礎柱上に載置される前に、前記柱脚部の正確な据付位置とのずれを修正するため、前記柱脚部と前記構台との間に仮設置された位置調整手段(装置)にて、前記柱脚部に水平力を加えて正確な位置に修正することができる。 Further, in the slide method of the rigid frame structure according to the present invention, the column base portion of the partial frame of the rigid frame structure is accurately mounted before being placed on a predetermined foundation column at the time of jacking down. The deviation from the installation position may be corrected by using the position adjusting means. In order to correct the deviation of the column base from the correct installation position before the column base of the partial frame is placed on a predetermined foundation column during jacking down, the column base and the platform are used. A position adjusting means (device) temporarily installed between the column base and the column base can be used to apply a horizontal force to correct the position.

前記部分架構の大梁部を支持する各構台は、前記部分架構の支持点毎に設けられた支保工(ベント支柱)が構造体の一部として構成される。 Each gantry that supports the girder portion of the partial frame is configured as a part of the structure by supporting works (vent columns) provided at each support point of the partial frame.

前記部分架構の張間方向に並んで相対して立設された各構台は、相互に分離自立していてもよい。その場合、スライド移動中に作用する可能性のあるスライド直交方向の地震等水平力に対する仮補強として、前記部分架構の大梁部と前記各構台の一部(例えば、下端部)とを繋ぐ補強部材が設置される。 The gantry standing side by side in the stretching direction of the partial frame and standing facing each other may be separated from each other and stand independently. In that case, as a temporary reinforcement against a horizontal force such as an earthquake in the direction orthogonal to the slide that may act during the slide movement, a reinforcing member connecting the girder portion of the partial frame and a part (for example, the lower end portion) of each frame. Is installed.

スライド直交方向の前記各構台の別補強方法として、相互をトラス梁等の構造体により連結し一体化してもよい。 As a separate reinforcement method for each of the gantry in the direction orthogonal to the slide, they may be connected to each other by a structure such as a truss beam and integrated.

なお、前記構台をスライド移動させる方法は、ウインチによるワイヤーロープ巻取り方式あるいは油圧ジャッキによる尺取り方式など、建設現場の諸条件等を考慮して決定すればよい。 The method of sliding the gantry may be determined in consideration of various conditions at the construction site, such as a wire rope winding method using a winch or a measuring method using a hydraulic jack.

また、1回のスライドで運搬する部分架構としては、架構として自立できる最小単位とすれば牽引重量が軽いので、牽引装置の能力として大きな容量を必要としない。 Further, as the partial frame to be transported by one slide, the traction weight is light if it is the smallest unit that can stand on its own as a frame, so that a large capacity is not required as the capacity of the traction device.

本発明は、以上のように、ラーメン構造物のスライド工法において、スライドレール上を移動可能な構台を取入れたことにより、次のような効果が得られる。 As described above, the present invention has the following effects by incorporating a gantry that can move on the slide rail in the slide construction method of the rigid frame structure.

(1)スライド移動中は部分架構の支持点を大梁部に設けて柱脚部を宙に浮かすので、従来のラーメン構造物のスライド工法において問題であった柱脚部水平力が発生せず、スライド移動中の安全性が高い。 (1) Since the support point of the partial frame is provided in the girder part and the column base is floated in the air during the slide movement, the column base horizontal force, which is a problem in the slide method of the conventional rigid frame structure, is not generated. High safety while moving the slide.

(2)スライド移動中の柱脚部水平力が生じないので、その水平力を受けるスライド用基礎の補強が不要であり、そのための費用が削減できる。 (2) Since the horizontal force of the column base during the slide movement is not generated, it is not necessary to reinforce the slide foundation that receives the horizontal force, and the cost for that can be reduced.

(3)部分架構の柱脚部が宙に浮いた状態にあるので、柱脚部が所定の基礎柱上に載置される際、仮設置された位置調整手段(装置)を用いて、容易に正確な据付位置とのずれを修正することができる。 (3) Since the column base of the partial frame is in a state of floating in the air, when the column base is placed on a predetermined foundation column, it is easy to use the temporarily installed position adjusting means (device). It is possible to correct the deviation from the correct installation position.

(4)1回のスライドで運搬する部分架構は、ジャッキダウン後に架構として自立できる最小単位でよいので重量が軽く、容量の大きな牽引装置を必要としない。 (4) The partial frame carried by one slide may be the smallest unit that can stand on its own as a frame after jacking down, so that the weight is light and a large capacity traction device is not required.

(5)柱脚部が宙に浮いた状態でスライド移動されるので、建物の桁行方向に並ぶ柱列が、スライド方向と平行でなくても、各柱の所定位置への据付けが可能である。 (5) Since the column base is slid and moved while floating in the air, it is possible to install each column at a predetermined position even if the columns arranged in the girder direction of the building are not parallel to the sliding direction. ..

本発明の実施例における建設現場の仮設機器材配置例であり、(a)は、最初の部分架構3がスライド開始される直前の状況を示す伏図、(b)は、最初の部分架構3が自立した後、構台2が引き戻される途中の状況を示す伏図である。It is an example of arranging temporary equipment materials at a construction site in the embodiment of the present invention, (a) is a plan showing the situation immediately before the first partial frame 3 starts sliding, and (b) is the first partial frame 3. It is a plan showing the situation in which the gantry 2 is being pulled back after it becomes independent. 本発明の実施例において、2つ目の部分架構3と最初の部分架構3とが連結される状況を示す伏図である。FIG. 5 is a plan showing a situation in which a second partial frame 3 and a first partial frame 3 are connected in an embodiment of the present invention. 本発明の実施例において、先行の部分架構3、3が自立した後に、構台2が引き戻される途中の状況を示す図であり、(a)は伏図、(b)は(a)のX-X断面視である。In the embodiment of the present invention, it is a figure which shows the situation in which the gantry 2 is being pulled back after the preceding partial frame 3 and 3 became self-reliant, (a) is a cross-sectional view, (b) is X- It is an X cross-sectional view. 本発明の実施例において、スライドの別手順を説明する図であり、(a)は、新たな構台2により組立てられた2つ目の部分架構3がスライド開始される直前の状況を示し、(b)は、2台連結された構台2が特定位置S付近まで引き戻される状況を示す図である。In the embodiment of the present invention, it is a figure explaining another procedure of a slide, (a) shows the situation just before the second partial frame 3 assembled by a new frame 2 starts sliding, (a) b) is a diagram showing a situation in which the gantry 2 in which two units are connected is pulled back to the vicinity of the specific position S. 本発明の実施例におけるスライド直交方向の断面架構図であり、(a)はブレースによる構台2の張間方向の補強方法を示し、(b)は(a)のイ断面視、(c)は(a)のロ断面視である。It is a cross-sectional frame structure in the slide orthogonal direction in the embodiment of the present invention, (a) shows the reinforcement method of the gantry 2 in the tension direction by a brace, (b) is (a) a cross-sectional view, (c) is (A) is a cross-sectional view. 本発明の実施例において、図5(a)とは別案の構台補強方法を示す、スライド直交方向の断面架構図である。In the embodiment of the present invention, it is a cross-sectional frame structure in the slide orthogonal direction showing an alternative gantry reinforcement method from FIG. 5A. 図5(a)において、部分架構3の大梁Gが山形の場合の架構図である。FIG. 5A is a frame structure in the case where the girder G of the partial frame 3 has a chevron shape. 本発明の実施例におけるスライド直交方向の断面架構図であって、張間方向2スパンの部分架構3をスライドする場合の説明図である。It is sectional drawing in the slide orthogonal direction in the Example of this invention, and is explanatory drawing at the time of sliding the partial structure 3 of 2 spans in the tension direction. 大梁Gが支持点A、Aで支持されたラーメン架構の例題として、構造解析に用いた架構モデルと荷重条件を示す図である。As an example of a ramen frame in which the girder G is supported by the support points A and A, it is a figure which shows the frame model and the load condition used for the structural analysis. 図9の架構モデルの解析結果であり、(a)は曲げモーメント図、(b)は変位図、(c)は柱下端部の水平移動を拘束した時の曲げモーメント図と反力を示す。9 shows the analysis results of the frame model, (a) is a bending moment diagram, (b) is a displacement diagram, and (c) is a bending moment diagram and a reaction force when the horizontal movement of the lower end of the column is restrained. (a)は、柱脚ピン支持のラーメン架構の梁部に鉛直荷重wが載荷された架構モデルを示し、(b)は、前記ラーメン架構に発生する曲げモーメントM1、M2の分布状態と柱脚部反力Hを示す図である。(A) shows a frame model in which a vertical load w is loaded on a beam portion of a rigid frame frame supported by a column base pin, and (b) shows a distribution state of bending moments M1 and M2 generated in the rigid frame frame and a column base. It is a figure which shows the partial reaction force H.

本発明の第1実施例を、図1~図5を参照して説明する。図1は、建物の建設現場において、仮設のスライドレール(2本1組)1、1が敷設され、その上を自立して移動可能な構台2、2が、部分架構3の特定位置Sに設置されている様子を示す配置図である。図中に破線表示された部分架構3’は、最初の部分架構3がスライド移動されて設置される所定位置を示す。 The first embodiment of the present invention will be described with reference to FIGS. 1 to 5. In FIG. 1, temporary slide rails (one set of two) 1 and 1 are laid at a building construction site, and gantry 2 and 2 that can move independently on the temporary slide rails 2 and 2 are placed at a specific position S of the partial frame 3. It is a layout drawing which shows the state of being installed. The partial frame 3'displayed with a broken line in the figure indicates a predetermined position in which the first partial frame 3 is slid and installed.

構台2、2は、ワイヤーロープ4、4を巻取り装置(ウインチ)のドラム5a、5a(5b、5b)で巻き取ることで、スライドレール1、1上を前後に移動可能となっている。 The gantry 2 and 2 can move back and forth on the slide rails 1 and 1 by winding the wire ropes 4 and 4 with the drums 5a and 5a (5b and 5b) of the winding device (winch).

部分架構3は、図5に図示のように、大梁Gと2本の柱Cとで構成されるラーメン架構Fが3面と、それらを連結する小梁g、g、…、および屋根面と壁面の面内に配置されたブレースv、v、…等から成る。実際の工事では、胴縁等の二次部材や仕上げ材等が取付けられることが多いと思われるが、本例では省略する。
なお、図中のf、f、…は、柱C、C、…が据付けられる基礎柱、9は、既設もしくは後施工の施設(例えば、鉄道駅のプラットフォーム等)を示す。
As shown in FIG. 5, the partial frame 3 includes three rigid frame frames F composed of a girder G and two pillars C, and small beams g, g, ..., And a roof surface connecting them. It consists of braces v, v, ..., Etc. arranged in the surface of the wall surface. In actual construction, it seems that secondary members such as furring strips and finishing materials are often attached, but this is omitted in this example.
In the figure, f, f, ... Indicates a foundation pillar on which pillars C, C, ... Are installed, and 9 indicates an existing or post-construction facility (for example, a platform of a railway station).

本実施例において、スライド工事を実施する手順は以下の通りである。
1)図1に図示のように、特定位置Sに設置された構台2、2の支保工2a、2aを跨ぐようにして(図5(a)参照)、3面のラーメン架構Fの大梁Gがそれぞれ2箇所の支持点A、Aにて支持された(最初の)部分架構3が組立てられる。この時、柱C、C、…の柱脚部(柱下端)は、基礎柱f、f、…の天端よりも少し高い位置で、宙に浮いた状態になっている(図1、図5参照)。
In this embodiment, the procedure for carrying out the slide work is as follows.
1) As shown in FIG. 1, the girder G of the three-sided ramen frame F straddles the support works 2a and 2a of the gantry 2 and 2 installed at the specific position S (see FIG. 5A). The (first) partial frame 3 supported by the two support points A and A, respectively, is assembled. At this time, the column bases (column lower ends) of the columns C, C, ... Are floating in the air at a position slightly higher than the top ends of the foundation columns f, f, ... (FIGS. 1, FIG. 5).

2)各大梁Gがそれぞれ2箇所の支持点A、Aで支持された部分架構3を載せた構台2、2は、ワイヤーロープ4、4がドラム5a、5aにて巻取られることにより、スライドレール1、1上を、矢印方向(図1(a)参照)に、所定位置(破線の部分架構3’)まで運搬される。 2) The gantry 2 and 2 on which the partial frame 3 supported by the support points A and A at two points of each girder G are mounted are slid by the wire ropes 4 and 4 being wound by the drums 5a and 5a. The rails 1 and 1 are transported in the direction of the arrow (see FIG. 1A) to a predetermined position (partial frame 3'with a broken line).

3)所定位置にて部分架構3は、ジャッキダウンにより全ての支持点A、A、…の支持が解除され、柱C、C、…の柱脚部がそれぞれ基礎柱f、f、…に載置され、アンカーボルトにて定着され自立する(図1(b)参照)。 3) At the predetermined position, the partial frame 3 is released from the support of all the support points A, A, ... By jacking down, and the column bases of the columns C, C, ... Are placed on the foundation columns f, f, ..., respectively. It is placed, fixed with anchor bolts, and self-supporting (see FIG. 1 (b)).

ジャッキダウンの際、柱C、C、…の柱脚部が所定の基礎柱f、f、…に載置される前に、それら柱脚部と構台2、2の下端部との間に設置された位置調整装置6、6(図5(a)参照)により、それら柱脚部に外方向の水平力が加えられることにより、正確な据付位置とのずれが修正される。 At the time of jacking down, before the pillar bases of the pillars C, C, ... Are placed on the predetermined foundation pillars f, f, ..., they are installed between the pillar bases and the lower ends of the gantry 2, 2. The position adjusting devices 6 and 6 (see FIG. 5A) apply an outward horizontal force to the column bases to correct the deviation from the correct installation position.

なお、上記の水平力については具体例を後述するが、柱脚部の正確な据付位置とのずれが部分架構3の建方に問題ない程度に僅少の場合は、位置調整装置6、6を用いることなく、柱脚部ベースプレートのアンカーボルト孔(図示せず)を予め大き目に開けておいて、アンカーボルトが挿通され、柱脚部がf、f、…に載置された後に、前記アンカーボルト孔を覆う座金板を前記ベースプレートに溶接する、従来の方法も可能である。 A specific example of the above horizontal force will be described later, but if the deviation from the accurate installation position of the column base is small enough to cause no problem in the construction of the partial frame 3, the position adjusting devices 6 and 6 may be used. Anchor bolt holes (not shown) of the column base plate are made large in advance without being used, and after the anchor bolts are inserted and the column bases are placed on f, f, ..., The anchors are said. A conventional method of welding a washer plate covering the bolt holes to the base plate is also possible.

4)部分架構3が基礎柱f、f、…の上に定着され自立した後、構台2、2は、ワイヤーロープ4、4がドラム5b、5bにて巻取られることにより、次の部分架構を組立てる特定位置Sまで、スライドレール1、1上を矢印方向(図1(b)参照)に移動して引き戻される。 4) After the partial frame 3 is fixed on the foundation pillars f, f, ... And becomes independent, the wire ropes 4 and 4 are wound on the drums 5b and 5b to form the next partial frame. Is moved back in the direction of the arrow (see FIG. 1B) on the slide rails 1 and 1 to the specific position S for assembling.

5)特定位置Sに戻された構台2、2を用いて、次の部分架構3が以上と同様の手順にて組立てられ、矢印方向(図2参照)にスライド移動され、そしてジャッキダウンにより、所定位置に設置される。 5) Using the gantry 2 and 2 returned to the specific position S, the next partial framing 3 is assembled by the same procedure as above, slid in the direction of the arrow (see FIG. 2), and jacked down. It is installed in place.

6)先行して設置された部分架構3との接続部3aを小梁g、g、…等にて接続し、2つの部分架構3、3が一体化される(図2参照)。接続部3aの部材取付け作業は、高所作業車等を使用してもよい。 6) The connection portion 3a with the partially installed partial frame 3 is connected by a beam g, g, ..., Etc., and the two partial frame frames 3, 3 are integrated (see FIG. 2). An aerial work platform or the like may be used for the member mounting work of the connection portion 3a.

7)2つの部分架構3、3が一体化され、自立した後、構台2、2は再び、次の部分架構を組立てる特定位置Sまで、スライドレール1、1上を矢印方向(図3(a)、(b)参照)に移動して引き戻される。 7) After the two partial frames 3 and 3 are integrated and become independent, the frames 2 and 2 again point in the direction of the arrow on the slide rails 1 and 1 to the specific position S for assembling the next partial frame (FIG. 3 (a). ), (Refer to (b)) and pulled back.

以上の手順が、最後の部分架構まで繰り返され、架構建方が全て完了した後、構台2、2は特定位置S付近まで引き戻されて解体され、スライドレール1、1および牽引装置(ドラム5a、5b他)が撤去される。 The above procedure is repeated until the final partial frame, and after all the frame construction is completed, the frames 2 and 2 are pulled back to the vicinity of the specific position S and disassembled, and the slide rails 1, 1 and the traction device (drum 5a, 5b etc.) will be removed.

以上は、部分架構3を1台ずつジャッキダウンしたが、例えば、部分架構3を2台以上連結した後、ジャッキダウンしてもよい。つまり、図4(a)を参照して、所定位置に運搬済みの部分架構3(同図の右端の実線表示)がジャッキダウン前の状態にある時、特定位置Sにて、新たな構台2、2により次の部分架構3が組立てられ、同図中の太い矢印方向にワイヤーロープ4にて牽引され、運搬済みの部分架構3の隣(破線表示部分)の所定位置まで、破線矢印のように運搬された後、小梁g、g、・・・等にて2台の部分架構3、3が連結され、その後、一体的にジャッキダウンする方法である。
図4では、一体化される部分架構3は2台だが、3台以上を連結し一体化した後にジャッキダウンしてもよい。
In the above, the partial frames 3 are jacked down one by one, but for example, two or more partial frames 3 may be connected and then jacked down. That is, referring to FIG. 4A, when the partial frame 3 (displayed by the solid line at the right end of the figure) that has been transported to the predetermined position is in the state before jacking down, the new frame 2 is set at the specific position S. The next partial frame 3 is assembled by 2 and is pulled by the wire rope 4 in the direction of the thick arrow in the figure, and is as shown by the broken line arrow to a predetermined position next to the transported partial frame 3 (dashed line display part). This is a method in which two partial frames 3, 3 are connected by a small beam g, g, ..., Etc., and then integrally jacked down.
In FIG. 4, the number of partial frames 3 to be integrated is two, but three or more may be connected and integrated before jacking down.

ジャッキダウンされて自立した2台の部分架構3、3の支持を解除された構台2、2は、連結されて一緒に、矢印方向(図4(b)参照)へ特定位置S付近まで引き戻される。 The two partial frames 3 and 3 that have been jacked down and become self-supporting, and the frames 2 and 2 that have been unsupported, are connected and pulled back together in the direction of the arrow (see FIG. 4 (b)) to the vicinity of the specific position S. ..

前記手順3)において、ジャッキダウンの際、柱C、C、…の柱脚部が所定の基礎柱f、f、…に載置される前に、正確な据付位置とのずれを修正する必要があるが、それは、本発明による方法特有の課題を含む。以下、図9および図10により説明する。 In the above procedure 3), it is necessary to correct the deviation from the correct installation position before the column bases of the columns C, C, ... Are placed on the predetermined foundation columns f, f, ... During jacking down. However, it involves the problems specific to the method according to the present invention. Hereinafter, it will be described with reference to FIGS. 9 and 10.

図9は、1構面のラーメン架構Fの大梁Gが2箇所の支持点A、Aで鉛直支持され、柱C、Cの下端部が宙に浮いた状態の解析用架構モデル(左右対称とする)を示す。大梁Gには等分布荷重(大梁自重)wgの他に二次部材と仕上げ材を含む節点荷重Pgが載荷されており、大梁Gの両端に剛接合された柱C、Cには二次部材と仕上げ材が取付いて、柱自重を含む等分布荷重wcが鉛直荷重となっている。 FIG. 9 shows a frame model for analysis (symmetrical) in which the girder G of the ramen frame F on one surface is vertically supported at two support points A and A, and the lower ends of the columns C and C are suspended in the air. To). In addition to the evenly distributed load (the weight of the girder) wg, the node load Pg including the secondary member and the finishing material is loaded on the girder G, and the columns C and C rigidly joined to both ends of the girder G are the secondary members. And the finishing material is attached, and the evenly distributed load wc including the column's own weight is the vertical load.

このような状態の時、柱C、Cの下端部には水平方向内側への変位δhが発生するので、本発明では、柱C、Cの柱脚部が基礎柱f、fに載置される前に、その柱脚部に水平力Pを外方向に加えて変位δhをゼロに押し戻すことが必要となる。 In such a state, the lower ends of the columns C and C are displaced inward in the horizontal direction δh. Therefore, in the present invention, the column bases of the columns C and C are placed on the foundation columns f and f. It is necessary to apply a horizontal force P to the column base portion in the outward direction to push the displacement δh back to zero.

ここで、1例として、変位δhとそれをゼロに押し戻すのに必要な水平力Pがどの程度になるかを求めた計算例を示す。計算条件は、図9において下記のように仮定した。
梁長さs=19.115m、柱長さh=9.015m
大梁G:H-900×300×16×32
wg=3.04kN/m(大梁自重)、Pg=5.65~15.21kN(二次部材+仕上げ材)
柱C :□-550×550×32、wc=7.17kN/m(柱自重+二次部材+仕上げ材)
Here, as an example, a calculation example is shown in which the displacement δh and the horizontal force P required to push it back to zero are obtained. The calculation conditions were assumed as follows in FIG.
Beam length s = 19.115m, column length h = 9.015m
Girder G: H-900 × 300 × 16 × 32
wg = 3.04kN / m (self-weight of girder), Pg = 5.65 to 15.21kN (secondary member + finishing material)
Pillar C: □ -550 × 550 × 32, wc = 7.17kN / m (pillar own weight + secondary member + finishing material)

計算結果を図10(a)~(c)に示す。(a)は曲げモーメント図、(b)は変位図である。また、(c)は、柱脚部の変位δhをゼロに押し戻した場合の水平力Pを求めるために、柱下端部の水平移動を拘束した場合の曲げモーメント図である。(b)より、柱下端部の水平変位はδh=19.6mmである。また、(c)より、変位δhをゼロに押し戻すのに必要な水平力はP(=124kNm/9.015m)≒13.8kNであることが分かる。 The calculation results are shown in FIGS. 10 (a) to 10 (c). (A) is a bending moment diagram, and (b) is a displacement diagram. Further, (c) is a bending moment diagram when the horizontal movement of the lower end portion of the column is restrained in order to obtain the horizontal force P when the displacement δh of the column base portion is pushed back to zero. From (b), the horizontal displacement of the lower end of the column is δh = 19.6 mm. Further, from (c), it can be seen that the horizontal force required to push the displacement δh back to zero is P (= 124 kNm / 9.015 m) ≈13.8 kN.

上記の例から、柱C、Cの下端部の水平変位δh(=19.6mm)と、それをゼロに押し戻すのに必要な水平力Pの大きさ(≒13.8kN)は、それ程大きなものではないことが分かる。従って、この程度の水平力Pであれば、柱C、Cの下端部と同じ高さにあるベント支柱2a、2aの足元でその反力受けても、ベント支柱2a、2aの脚部からスライドレール1、1を介して地盤へ、安全に力を伝達できる。 From the above example, the horizontal displacement δh (= 19.6 mm) of the lower ends of the columns C and C and the magnitude of the horizontal force P (≈13.8 kN) required to push it back to zero are not so large. You can see that. Therefore, with this level of horizontal force P, even if the reaction force is received at the feet of the vent columns 2a and 2a at the same height as the lower ends of the columns C and C, they slide from the legs of the vent columns 2a and 2a. Force can be safely transmitted to the ground via rails 1 and 1.

なお、構台2の構成は、例えば、図5(a)、(b)のように、1箇所の支持点Aが1台のベント支柱2aにより支持され、片側のスライドレール1側の支持点Aの数(図5では3箇所)と同じ台数のベント支柱2a同士を、繋ぎ材b、b、…とブレースv、v、…にて連結され、一体化されたものである。 In the configuration of the gantry 2, for example, as shown in FIGS. 5A and 5B, one support point A is supported by one vent support 2a, and the support point A on one side of the slide rail 1 side. The same number of vent columns 2a as the number of (3 locations in FIG. 5) are connected to each other by connecting members b, b, ... And braces v, v, ..., And integrated.

また、部分架構3を支持する1対の構台2、2には、スライド直交方向の地震水平力等に対する抵抗力を確保するため、図5(a)に図示のように、補強ブレース7、7が大梁Gの支持点A、Aとベント支柱2a、2aの最下部とに掛け渡されている。本設の大梁Gを利用した簡易な仮補強方法である。 Further, in order to secure resistance to an earthquake horizontal force in the direction orthogonal to the slide, the pair of gantry 2 and 2 supporting the partial frame 3 have reinforcing braces 7 and 7 as shown in FIG. 5A. Is hung between the support points A and A of the girder G and the lowermost portions of the vent columns 2a and 2a. This is a simple temporary reinforcement method using the main girder G.

スライド直交方向の抵抗力を確保する他の方法としては、例えば、図6に図示のように、一対の構台2、2同士を構造体、例えばトラス梁Tで連結して、水平荷重に対して十分安定したトラスラーメン架構にすることが考えられる。この場合、両構台2、2間の往来を可能にできるので、部分架構3の組立て作業時の足場としても利用できる。 As another method for ensuring the resistance force in the direction perpendicular to the slide, for example, as shown in FIG. 6, a pair of frames 2, 2 are connected to each other by a structure, for example, a truss beam T, and the resistance force is applied to a horizontal load. It is conceivable to make the truss rigid frame frame sufficiently stable. In this case, since it is possible to move between the two frames 2 and 2, it can also be used as a scaffolding for the assembly work of the partial frame 3.

以上のように、本発明における構台2は、繰り返し使用を前提とするベント支柱2aを利用するので、解体と組立てが容易であり、仮設費は安価である。 As described above, since the gantry 2 in the present invention uses the vent column 2a which is premised on repeated use, it is easy to disassemble and assemble, and the temporary cost is low.

以上の実施例では、ラーメン架構Fの大梁Gは水平の場合であったが、例えば、図7に図示のように、棟部が軒部よりも高い場合、大梁Gの支持点A、Aは自重によって外側に広がろうとするので、それを抑制するため、支持点A、Aを繋ぐタイバー8を設置することが好ましい。 In the above embodiment, the girder G of the rigid frame frame F is horizontal, but for example, as shown in FIG. 7, when the ridge is higher than the eaves, the support points A and A of the girder G are. Since it tends to spread outward due to its own weight, it is preferable to install a tie bar 8 connecting the support points A and A in order to suppress it.

また、図8は、ラーメン架構Fが2スパン連続する場合であり、スライド直交方向の架構図を示す。各スパン内にそれぞれ1対のスライドレール1、1と構台2、2が設けられている。この場合、4列ある構台2、2、・・・のスライド移動速度の同期について、2列の場合よりも、より慎重に操作する必要がある。 Further, FIG. 8 shows a case where the rigid frame frame F is continuous for two spans, and shows the frame structure in the slide orthogonal direction. A pair of slide rails 1, 1 and gantry 2, 2 are provided in each span. In this case, it is necessary to operate the synchronization of the slide movement speeds of the gantry 2, 2, ... With four rows more carefully than in the case of two rows.

本発明は、張間方向がラーメン構造で、例えば、鉄道駅のプラットホーム上屋等のように、桁行が長大である構造物の建方工法としてスライド工法が採用された場合、従来のような、スライド移動中の柱脚部における外側に蹴り出そうとする水平力が発生せず、また牽引装置の小容量化が図れるので、安全性が向上し、かつ基礎工事費および機材費の削減にも貢献できる。 In the present invention, when the slide method is adopted as a construction method for a structure having a rigid frame structure in the Zhangma direction and having a long girder line, such as a platform roof of a railway station, the conventional method is used. Since no horizontal force is generated to kick the column base during slide movement and the capacity of the traction device can be reduced, safety is improved and foundation construction costs and equipment costs are also reduced. I can contribute.

1:スライドレール
2:構台
2a:支保工(ベント支柱)
3、3’:部分架構
3a:連結部
4:ワイヤーロープ
5a、5b:ドラム
6:位置調整装置
7:補強ブレース
8:タイバー
9:プラットホーム
A:支持点
C:柱
F:ラーメン架構
G:大梁
H:水平反力
P:水平力
S:特定位置S(特定の組立位置)
T:トラス梁
b:繋ぎ材
f:基礎柱
g:小梁
v:ブレース
1: Slide rail 2: Platform 2a: Support work (vent support)
3, 3': Partial frame 3a: Connecting part 4: Wire rope 5a, 5b: Drum 6: Position adjusting device 7: Reinforcing brace 8: Tie bar 9: Platform A: Support point C: Pillar F: Rahmen frame G: Girder H : Horizontal reaction force P: Horizontal force S: Specific position S (specific assembly position)
T: Truss beam b: Lumber f: Foundation pillar g: Small beam v: Brace

Claims (6)

ラーメン構造物のスライド工法であって、
1)前記ラーメン構造物の部分架構を組立てる構台が、スライドレール上を移動可能に特定の組立位置に設置される工程。
2)前記組立位置に設置された前記構台において組立てられた前記部分架構は、その大梁部が前記構台によって支持され、かつ前記部分架構の柱脚部が宙に浮いた状態で、前記スライドレール上を所定位置まで運搬される工程。
3)前記所定位置に運搬済みの前記部分架構は、ジャッキダウンにより前記構台による支持が解除され、前記柱脚部が所定の基礎柱上に定着されて自立する工程。
以上の工程を含むことを特徴とする、ラーメン構造物のスライド工法。
It is a slide method for rigid frame structures.
1) A process in which a frame for assembling a partial frame of the rigid frame structure is installed at a specific assembly position so as to be movable on a slide rail.
2) The partial frame assembled in the frame installed at the assembly position is on the slide rail with the girder portion supported by the frame and the column base portion of the partial frame floating in the air. The process of transporting to a predetermined position.
3) A step in which the partial frame that has been transported to the predetermined position is released from the support by the gantry by jacking down, and the column base portion is fixed on the predetermined foundation column to stand on its own.
A slide method for rigid frame structures, characterized by including the above steps.
ラーメン構造物のスライド工法であって、
1)前記ラーメン構造物の部分架構を組立てる構台が、スライドレール上を移動可能に特定の組立位置に設置される工程。
2)前記組立位置に設置された前記構台において組立てられた前記部分架構は、その大梁部が前記構台によって支持され、かつ前記部分架構の柱脚部が宙に浮いた状態で、前記スライドレール上を所定位置まで運搬される工程。
3)前記所定位置に運搬済みの前記部分架構がジャッキダウンされる前に、次の部分架構を組立てるための新たな構台が、前記特定の組立位置に設置され、次の部分架構が組立てられる工程。
4)前記次の部分架構は、その柱脚部が前記部分架構と同様に宙に浮いた状態で、前記スライドレール上を所定位置まで運搬され、1つ前に運搬済みの前記部分架構に連結され一体化される工程。
5)手順3)~4)が、少なくとも1回以上実行される工程。
6)連結され一体化された運搬済みの前記部分架構全てについて、ジャッキダウンにより、前記構台による支持が解除され、全ての前記柱脚部が所定の基礎柱上に定着されて自立する工程。
以上の工程を含むことを特徴とする、ラーメン構造物のスライド工法。
It is a slide method for rigid frame structures.
1) A process in which a frame for assembling a partial frame of the rigid frame structure is installed at a specific assembly position so as to be movable on a slide rail.
2) The partial frame assembled in the frame installed at the assembly position is on the slide rail with the girder portion supported by the frame and the column base portion of the partial frame floating in the air. The process of transporting to a predetermined position.
3) A process in which a new frame for assembling the next partial frame is installed at the specific assembly position and the next partial frame is assembled before the partial frame that has been transported to the predetermined position is jacked down. ..
4) The next partial frame is transported to a predetermined position on the slide rail with its column base floating in the air in the same manner as the partial frame, and is connected to the previously transported partial frame. The process of being integrated.
5) A step in which steps 3) to 4) are executed at least once.
6) A step in which all the transported partial frames that have been connected and integrated are released from the support by the gantry by jacking down, and all the column bases are fixed on a predetermined foundation column to stand on their own.
A slide method for rigid frame structures, characterized by including the above steps.
請求項1または2記載のラーメン構造物のスライド工法において、
前記ラーメン構造物の部分架構の柱脚部が、ジャッキダウンの際、所定の基礎柱上に載置される前に、前記柱脚部の正確な据付位置とのずれが、位置調整手段を用いて修正される工程を含むことを特徴とするラーメン構造物のスライド工法。
In the slide method of the rigid frame structure according to claim 1 or 2.
Before the column base of the partial frame of the rigid frame structure is placed on a predetermined foundation column during jacking down, the deviation from the correct installation position of the column base uses the position adjusting means. A slide method for rigid frame structures, which comprises a process of being modified.
請求項1~3の何れかに記載のラーメン構造物のスライド工法において、
前記ラーメン構造物の部分架構を支持する構台は、前記部分架構の支持点毎に設けられた支保工が構造体の一部として構成されることを特徴とするラーメン構造物のスライド工法。
In the slide method of the rigid frame structure according to any one of claims 1 to 3,
The frame that supports the partial frame of the rigid frame structure is a slide method of the rigid frame structure, characterized in that a support provided at each support point of the partial frame is configured as a part of the structure.
請求項1~4の何れかに記載のラーメン構造物のスライド工法において、
前記ラーメン構造物の部分架構の張間方向に並んで相対して立設された各構台の一部と、前記部分架構の大梁部とを繋ぐ補強部材が設置されていることを特徴とするラーメン構造物のスライド工法。
In the slide method of the rigid frame structure according to any one of claims 1 to 4.
A rigid frame characterized in that a reinforcing member is installed to connect a part of each frame erected side by side in the stretching direction of the partial frame of the rigid frame structure and a girder portion of the partial frame. Slide construction method for structures.
請求項1~4の何れかに記載のラーメン構造物のスライド工法において、
前記ラーメン構造物の部分架構の張間方向に並んで相対して立設された各構台同士が構造体にて相互に直接連結されていることを特徴とするラーメン構造物のスライド工法。
In the slide method of the rigid frame structure according to any one of claims 1 to 4.
A slide method for a rigid frame structure, characterized in that the rigid frame structures erected side by side in the direction of the partial frame of the rigid frame structure are directly connected to each other by the structure.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061819A (en) * 1973-10-05 1975-05-27
JPH11336329A (en) * 1998-05-28 1999-12-07 Nippon Steel Corp Fall preventing joint structure for structure and centering and installation device for structure in carriage
JP2007284922A (en) * 2006-04-13 2007-11-01 Shimizu Corp Method of constructing steel frame of building
JP2008057226A (en) * 2006-08-31 2008-03-13 Sumikei-Nikkei Engineering Co Ltd Method of constructing building on bridge girder, and bridge having the building

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5061819A (en) * 1973-10-05 1975-05-27
JPH11336329A (en) * 1998-05-28 1999-12-07 Nippon Steel Corp Fall preventing joint structure for structure and centering and installation device for structure in carriage
JP2007284922A (en) * 2006-04-13 2007-11-01 Shimizu Corp Method of constructing steel frame of building
JP2008057226A (en) * 2006-08-31 2008-03-13 Sumikei-Nikkei Engineering Co Ltd Method of constructing building on bridge girder, and bridge having the building

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