JP4988941B1 - Support jig transfer jig and support transfer method - Google Patents

Abstract

When disassembling a support work, a jig is attached to the support work, and it can be lifted by a crane and easily transferred and dismantled.
A jig for mounting a vertical member 7 and a horizontal member 8 to a tower-shaped supporter 1 so that the supporter can be lifted integrally. A support column 13 arranged from the upper part to the lower part, a locking part 12 arranged at the tip of the support pillar 13 to be engaged with the upper end part of the support work, and an attachment for attaching the lower part of the support pillar 13 to the lower end part of the support work Part 14.
[Selection] Figure 1

Description

  The present invention relates to a support jig and a transfer method for the support, and in particular, for disassembly of the support, for supporting work that can be easily disassembled by lifting it with a crane by mounting the jig. The present invention relates to a jig and a transfer method of a support work.

At the construction site, as a structure for supporting the concrete formwork, a support construction combining vertical and cross members is used.
This support is a temporary structure that is fitted to each other using a joint such as a pipe, or is assembled into a quadrangular prism using a bolt or the like.
In general, in such a support work, it is easy to join the intermediate laminates, but as the number of intermediate laminates increases, the misalignment of the joints between the respective laminate units occurs. When the supported support is lifted using a crane or the like and transported or moved, there is a problem that the support is distorted and it takes time to install it in a regular shape.
Therefore, the techniques of Patent Documents 1 and 2 have been proposed as techniques for preventing the support work from being distorted and enabling integral transfer.
No. 7-23484 Japanese Patent No. 3909344

The techniques described in Patent Documents 1 and 2 are techniques applied when assembling the support work, but there is no description of the technique for dismantling and removing the support work.
There are two methods for disassembling a once-assembled support work: a method in which workers climb up to the support work in order from the upper part, or a method in which a wire is passed to the upper part of the support work, lifted by a crane, and then disassembled after transfer. In any case, workers had to climb to the top of the support.
When the support is lifted with a crane and transferred, there is a possibility that the connecting part of the support will come off, and it is extremely difficult to lift the support integrally.

  The present invention has been made in order to solve the conventional problems, and the object of the present invention is to easily lift and dismantle by lifting a crane by attaching a jig when dismantling the support work. Another object of the present invention is to provide a supporting jig for transferring support and a transferring method for supporting work.

  As a means for achieving the above object, in the supporting jig transfer jig according to claim 1, the supporting works are integrally lifted by attaching the vertical members and the horizontal members to the tower-shaped supporting works. A jig that enables the support to be arranged from the upper part to the lower part of the support, and a locking part that is arranged at the tip of the support and is locked to the upper end of the support. And an attachment part for attaching the lower part of the support column to the lower end part of the support work.

  The supporting jig transfer jig according to claim 2, wherein the locking portion is a hook that is locked to a cross member at the upper end of the supporting work, and a side thereof. A bar that contacts the lower surface of the material is provided, and the bar is formed with a positioning guide that is inserted between the vertical members at both ends of the horizontal member to prevent lateral displacement.

  In the supporting jig transfer jig according to claim 3, in the supporting jig transfer jig according to claim 1 or 2, the attachment portion is detachable from the support column, and the attachment unit is attached to the support column. Thus, it has a function of supporting the lower end portion of the support work like a hook.

  In the supporting jig transfer jig according to claim 4, in the supporting jig transfer jig according to claim 1, 2 or 3, the mounting portion includes a bar that comes into contact with the lower surface of the supporting member cross member, The bar is characterized in that a positioning guide that is inserted between the vertical members at both ends of the horizontal member to prevent lateral displacement is arranged.

The transfer method of the support work according to claim 5, wherein the support work can be integrally transferred by attaching a jig to the support work which is formed into a tower shape by combining vertical members and cross members,
Extend the column from the bottom of the support, lock the support at the top of the support to the top of the support, attach the bottom of the support that locked the tip to the bottom of the support,
It was set as the method of transferring a support work integrally by lifting the jig | tool which consists of the support | pillar which attached the upper end part and the lower end part.

By adopting the above configuration, the present invention has the following effects.
In the support jig for transferring the support structure according to claim 1, a support column disposed from the upper part to the lower part of the support structure, and a locking part disposed at the tip of the support structure and locked to the upper end part of the support structure. And an attachment portion that is disposed below the support column and attached to the lower end of the support work, so that the support work can be integrally lifted by attaching the support post to the support work.

In the supporting jig transfer jig according to the second aspect, since the locking portion includes the hook, it can be easily attached to the cross member at the upper end of the supporting work.
Moreover, since the positioning guide inserted between the vertical members at both ends of the horizontal member is formed on the bar that contacts the lower surface of the attached horizontal member, the lateral displacement of the locking portion attached to the horizontal member is prevented.

In the supporting jig for transfer according to claim 3, since the mounting portion is detachable from the support column, it is not necessary to perform special processing on the supporting work itself, and the conventional general supporting work is performed. Applicable to mounting.
In addition, by attaching the mounting part to the column, it has the function of supporting the lower end of the support work like a hook, so the lifting force can be transmitted by hooking the lower end of the support work from below like a hook. Can do.

  The support jig according to claim 4, wherein the bar contacting the lower surface of the attached cross member is formed with positioning guides inserted between the vertical members at both ends of the cross member. The lateral shift of the part is prevented.

  In the transfer method of the support work according to claim 5, the jig is attached to the support work that is formed into a tower shape by combining the vertical member and the cross member, and the support work can be integrally transferred, Extend the column from the bottom of the support, lock the support at the top of the support to the upper end of the support, attach the bottom of the support that locked the tip to the lower end of the support, and connect the upper and lower ends. Since the support work is transported integrally by lifting the jig consisting of the attached struts, there is no need for the worker to climb the support work. It can be lifted, and the transfer and dismantling of the support work is easily performed.

  Hereinafter, the best mode for realizing the present invention will be described with reference to the drawings.

First, the overall structure of the support work will be described.
The support work 1 is a self-supporting steel tower that supports the concrete formwork used for the construction of bridges, etc., as shown in FIGS. The intermediate layered body 3 and the upper frame body 4 disposed at the upper end are formed by combining these structural units.
And the height adjustment tool 5 is attached to the support | pillar of a base frame, and the support | pillar of an upper frame as needed.

  These structural units of the support 1 have a vertical member 7 (vertical member) arranged in the stacking direction and a cross member 8 (horizontal member) that connects the vertical members, and the base frame 2 and the upper part. In the frame 4, the joint 9 is oriented in the stacking direction at the end of the vertical member at the diagonal position on either one of the upper and lower sides, and at the intermediate stack, at the upper end of one vertical member and the lower end of the other vertical member. Is fixed.

  The joint 9 has a base fixed to the end of the vertical member, and the tip becomes an insertion opening 10 for the vertical member of the adjacent frame, and the inner diameter d1 of the upper and lower ends is slightly larger than the diameter of the vertical member, The inner diameter d2 is formed to be larger than the inner diameter d1 at the upper and lower ends. In this joint, since the front end of the vertical member is arranged and fixed on the base side, the end of the upper vertical member inserted from the insertion opening can abut on the inside.

The supporting work 1 composed of these frames is joined to the base frame 2 by joining two sets of intermediate laminated bodies 3 by inserting the vertical members into the joints from above and connecting them to the next set of two pieces. The intermediate laminated body 3 is joined in the same manner by changing the direction of 90 °, and by repeating this, a large number of intermediate laminated bodies 3 are joined, and the upper frame 4 is joined to the upper end portion.
A brace 11 is attached between the horizontal members adjacent in the vertical direction.

Next, the transfer jig for the support will be described.
The transfer jig A according to the present invention is a jig that is mounted on the support 1 and can be lifted and transferred. As shown in FIGS. 3 to 5, a wire from a crane is connected. It is comprised from the latching | locking part 12 of an upper end, the support | pillar 13 extended below from the latching | locking part, and the attaching part 14 arrange | positioned under the support | pillar 13 and attached to the lower end part of a support work.

  The locking tool 12 has a bar 12a extending in the horizontal direction, a hook 15 protruding upward from the central portion of the bar, and a connecting pipe 16 protruding downward from the central portion of the bar.

The bar 12a is an L-shaped steel (equal side mountain shaped steel) disposed in the horizontal direction along the lower side of the horizontal member 8 of the support, and the horizontal length is based on the width of the support 1 to be mounted. The length is slightly longer and spans between the vertical members 7 and 7 of the support work. At the front end of the bar in the left-right direction, a supporting vertical member 7 and a positioning guide 17 that fits inside the vertical member 7 protrude.
This positioning guide 17 protrudes toward the mounting direction, that is, toward the back side, and the positioning guide 17 is formed so that the bar 12a comes into contact with the lower side of the cross member 8, The left and right guides 17 are fitted and positioned between the vertical members 7 and 7 to prevent the bars 12a from being laterally displaced.

The hook 15 is two protrusions protruding upward from the center of the bar, and has a back protrusion 15a positioned on the back side with respect to the mounting direction to the support and a front protrusion 15b positioned on the front side. Yes.
The rear projection 15a is fixed to the bar 12a by welding the left and right sides of the bar folded into a “U” shape, and after bending the fixed bar horizontally to the back, the tip is bent upward. The shape is different. For this reason, when the rear projection 15a is viewed from the side, an “L” -shaped projection is formed on the entire bar.

The front-side protrusion 15b is an “inverted U” -shaped protrusion that protrudes from the center of the bar 12a with the U-shaped bottom facing upward.
The front-side protrusion 15b is fixed to the bar by welding through the lower side of the bar that is bent in an inverted U-shape through one side of the bar.
A groove 18 is formed between the back-side protrusion 15a and the front-side protrusion 15b. The groove 18 functions as a locking portion for locking the cross member. That is, when the locking part is inserted into the cross member of the support 1 from below, the cross member 8 is caught between the back projection 15a and the front projection 15b, that is, locked and locked under the cross member. The bar 12a contacts along the side.

The shape of these two protrusions is not limited to this shape as long as it can be locked to the upper end of the support work when the support work is lifted to support the load. It is also possible to apply a locking portion of the shape.
Moreover, although the latching | locking part of a present Example is the structure latched to the crosspiece 8 from the bottom to the top, depending on the case, it can also be set as the structure latched to a crosspiece from the top to the bottom. is there.

The connecting pipe 16 is a connecting portion of a support column 13 extending perpendicularly downward from the bar 12a, and extends downward crossing the bar in a “T” shape.
An internal thread is formed on the inner periphery of the connection pipe 16 to serve as a connection portion with the support column 13.

The support column 13 is a pipe (straight steel material) that spans from the top to the bottom of the support work 1, and the length is a length (ten and several meters) from the upper end to the lower end of the support work. Yes. The length is appropriately set according to the height of the supporting work to be applied, but it is also possible to adjust by connecting several pipes.
A male screw 13a for connection with the connecting pipe is formed on the upper part of the steel pipe. The male screw 13a is screwed onto the female screw of the connecting part, and the connecting part and the steel pipe are integrally joined.

The mounting portion 14 includes a bar 14a extending in the horizontal direction, a protrusion 19 protruding upward from the central portion of the bar 14, and a column attaching / detaching portion 20 provided at the central portion of the bar 14a.
The bar 14a is an L-shaped steel (equal side mountain shaped steel) arranged in the horizontal direction along the lower side of the support cross member, like the bar of the locking portion 12, and the horizontal length is It is slightly longer than the width of the supporting work to be installed, and is the length spanned between the vertical members of the supporting work. At the front end of the bar in the left-right direction, a vertical member of the supporting work and a positioning guide 17 that fits inside the vertical member protrude.
This positioning guide 17 protrudes toward the mounting direction, that is, the back side, and the positioning guide 17 is formed so that the bar 14a comes into contact with the lower side of the cross member 8, The left and right guides are fitted and positioned between the longitudinal members and the lateral displacement of the bar 14a is prevented.

The protrusion 19 has the same shape as the back protrusion 15a of the locking portion 12, and the left and right sides of the bar folded into a "U" shape are fixed to the bar 14a by welding, and the fixed bar is After being bent horizontally, the tip is bent upward. Therefore, when the protrusion 19 is viewed from the side, an “L” -shaped protrusion is formed on the entire bar.
When the jig A is mounted, the cross member 8 is sandwiched between the protrusion 19 and the support 13, and the bar 14 a passes through the lower side. The cross member 8 is supported by the bar 14 a, the protrusion 19, and the support 13. Is supported in a hook shape.

The detachable part 20 is a clamp provided with a bolt 21, and a clamp that fits around the outer periphery of the support is fixed to the center of the bar. When the lower end of the support is inserted into the clamp and the bolt 21 is tightened, the attachment part and the support Are fixed together.
A guide 22 for guiding the insertion of the column is arranged on the upper side of the clamp.
Although there is no member corresponding to the front projection 15b in the mounting portion 14, the support cross member is sandwiched and attached between the projection 19, the column 13, and the bar 14a.

Next, the transfer method of the support using the support transfer jig of the present invention will be described.
After the concrete formwork is supported by the support work 1 and the bridge is constructed, the work shifts to the dismantling work of the support work 1.
Conventionally, it is necessary for the worker who has climbed to the support work 1 to be dismantled sequentially from the top or to lift the crane wire over the support work, and in any case, the worker has to climb to the top of the support work. was there.
In the support transfer method of the present invention, first, the locking portion 12 is attached to the tip of the support column 13 on the ground to form a jig having a length of several tens of meters.
A crane wire 23 is connected to the front projection 15b at the tip of the jig, and the tip of the jig A is guided toward the upper end of the support 1 while being lifted by human power or by the crane.

When the locking portion 12 approaches the upper end of the support 1, an operator operates the base portion of the pipe to fit the locking portion 12 into the cross member. Since the locking portion is formed by two hooks protruding upward, it can be easily inserted from below.
When the locking portion 12 is inserted, the bar 12a is disposed along the lower side of the cross member 8, and both ends of the bar 12a are bridged between the vertical member 7 and the vertical member 7 on the side of the support of the quadrangular column.
At this time, since the positioning guides 17 are disposed at both ends of the bar 12a, the guides 17 are fitted between the vertical members 7 to prevent the bars from being laterally displaced.

After the locking portion 12 is locked, the mounting portion 14 is then attached under the support 13.
When mounting the mounting portion 14, the bar 14 a is brought into contact with the lower side of the cross member 8 at the lower end of the support 1 to fix the column 13 to the clamp. By attaching the attachment portion 14 to the support column 13, the cross member 8 at the lower end portion of the support 1 is supported in a hook shape.
That is, the protrusion 19 is caught in the center of the cross member 8 of the support 1 and the bar 14a is in contact with the lower side of the support 1 so as to support the load of the support 1 from below. In other words, since the support column 13 is attached to the upper end portion and the lower end portion of the support work 1 so as to support the load of the support work, when a force in the lifting direction is applied to the support pillar 13 by the crane, the force is applied to the locking portion 12. And function to lift the upper and lower ends of the support through the attachment portion 14.

  After the jig A is mounted on the support 1, when the wire 23 is pulled up by the crane, the support 1 is lifted together with the jig, transferred to a predetermined location, and laid down, and the workers are sequentially disassembled.

Although the embodiments have been described above, the specific configuration of the present invention is not limited to the above-described embodiments, and design changes and the like within a scope not departing from the gist of the invention are included in the present invention.
For example, in the said Example, it was set as the structure which attaches the support | pillar 12 and the support work 1 via the attaching part 14, However As a mounting method of a support | pillar, another arbitrary structures are employable.

It is a general view of a support work. It is explanatory drawing of the structural component of a support work, (a) is a basic frame, (b) is an intermediate | middle part laminated body, (c) has shown the upper end frame. It is a perspective view of the jig for transfer of a support work. It is explanatory drawing of a latching | locking part, (a) is a front view, (b) is a rear view, (c) is a center sectional view, (d) has shown the left view. It is explanatory drawing of an attaching part, (a) is a front view, (b) is a rear view, (c) is a center sectional view, (d) has shown the left view. It is a perspective view of the transport vehicle.

DESCRIPTION OF SYMBOLS 1 Supporting work 2 Base frame body 3 Intermediate | middle part laminated body 4 Upper frame body 5 Adjustment tool 7 Vertical material 8 Horizontal material 9 Joint 10 Opening part 11 Bracing 12 Locking part 12a Bar 13 Support | pillar 13a Male screw 14 Attachment part 14a Bar 15 Hook 15a Back projection 15b Front projection 16 Connection pipe 17 Guide 18 Groove 19 Projection 20 Detachment part 21 Bolt 22 Guide 23 Wire

Claims (5)

It is a jig that can be lifted integrally by attaching a vertical member and a horizontal member to a support made into a tower shape,
The jig includes a support column that is arranged from the upper part to the lower part of the support work, a locking part that is arranged at the tip of the support work and is engaged with the upper end part of the support work, and a lower end of the support work that is below the support work. A support jig for transporting a supporting work, characterized in that the jig has a mounting part to be attached to the part.   The locking portion includes a hook that locks the cross member at the upper end of the support and a bar that abuts the bottom surface of the cross member, and the bar is inserted between the vertical members at both ends of the cross member to prevent lateral displacement. The supporting jig according to claim 1, wherein a positioning guide for preventing is formed.   The mounting portion is detachable from the support, and has a function of supporting the lower end portion of the support work in a hook shape by attaching the mounting portion to the support. Jig for transfer of support.   The mounting portion includes a bar that comes into contact with the lower surface of the cross member of the support, and the bar is provided with positioning guides that are inserted between the vertical members at both ends of the cross member to prevent lateral displacement. 4. A support jig for transferring support according to claim 1, 2, or 3. A method of mounting a jig on a support made into a tower shape by combining vertical and cross members, and making it possible to transfer the support integrally.
Extend the column from the bottom of the support, lock the support at the top of the support to the top of the support, attach the bottom of the support that locked the tip to the bottom of the support,
A transfer method of a support work in which the support work is transferred as a whole by lifting a jig composed of a column having an upper end and a lower end attached thereto.

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