JPH08170366A - Temporary stopper for column/beam joint member - Google Patents

Abstract

PURPOSE: To make it possible to temporarily fix a column/beam joint member to a column without burying a steel frame in the column. CONSTITUTION: A temporary stopper is equipped with a plurality of bearing members (30) fixed to sides of a concrete column (10), a pair of bracing members (30) mounted on the bearing members at mutual intervals and fasteners (32) passing through the bearing members and bracing members in the vertical direction. Both bracing members can be brought into contact with the upper surfaces of lower flanges (16a and 18a) in both sides of webs (16b and 18b) of a beam on the column/beam joint member, and the lower flanges can be fastened with the fasteners between the bracing members and concrete column. A plurality of joint means for jointing the bearing members and column/beam joint member can be provided to the bearing members instead of the bracing members.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for temporarily fixing a column-beam joint member on a concrete column.

[0002]

2. Description of the Related Art In order to connect a column made of cast-in-place concrete or precast concrete with a steel beam, a column-beam joining member installed on the head of a concrete column is used. Conventionally, in order to temporarily fix the column / beam joint member to a concrete column, an essentially unnecessary steel frame is embedded in the concrete column, and the column / beam joint member is connected to the steel frame with a bolt and a nut.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a device for temporarily fixing a column-beam joint member to a column without burying unnecessary steel frames in the column. Another object of the present invention is to provide a device for easily temporarily fixing a pillar / beam joint member to a pillar. Further, another object of the present invention is to reduce the time and labor required to complete the temporary fixing of the column-beam joint member to the column.

[0004]

DISCLOSURE OF THE INVENTION The present invention is an apparatus for temporarily fixing a column-beam joining member having a beam portion having both upper and lower flanges and a web arranged on a concrete column to the concrete column. There, a plurality of support hardware fixed to the side surface of the concrete pillar, a pair of presser hardware placed on each support hardware at a distance from each other, and each support hardware and each presser hardware are vertically penetrated. Including fasteners to
The pair of presser members can abut on the upper surface of the lower flange on both sides of the web of the beam portion of the column-beam joint member, and the fasteners are used to attach the lower flanges to the presser members and the concrete column. It can be tightened between.

The support hardware can be fixed to the concrete pillar by bolts extending through the bolt holes provided in the support hardware into the inserts provided in the concrete pillar. Further, it is preferable that the bolt holes are elongated holes extending in the vertical direction.

Another temporary fixing device according to the present invention is a plurality of supporting metal members fixed to the side surface of a concrete column,
It includes a plurality of connecting means for connecting the beam joining member and the supporting metal member.

Each connecting means is, for example, an expandable and contractable connecting tool having one of hooks and loops which can be hooked to each other at both ends thereof, the column / beam connecting member and each supporting metal member. Each of them is provided with the other of the hook and the loop. The column / beam joining member has a beam portion made of H-shaped steel, and a pair of rings are attached to both sides of the web of the beam portion, respectively, and a pair of rings are attached to each supporting metal member at intervals. Further, the hook can be attached to the pair of connecting tools. The pillar-beam joining member can be placed on the concrete pillar via an axial force receiving metal member.

[0008]

According to the present invention, each presser foot is rotated around the axis of the fastener and placed on the upper surface of the lower flange of the beam portion of the pillar-beam joint member arranged on the concrete pillar. By tightening the presser fitting with the fastener, the post beam and the joining member can be easily temporarily fixed to the support fitting and thus the concrete pillar. Also,
It is possible to eliminate the need for embedding a steel frame in a concrete column, which was conventionally required for temporarily fixing the column-beam joint member to the concrete column.

The support metal can be fixed to the concrete pillar by bolts extending through the bolt holes provided in the support metal and into the inserts provided in the concrete pillar. When the bolt hole is an elongated hole extending in the vertical direction, the height position of the support metal object with respect to the insert can be changed.

According to another temporary fixing device of the present invention, it is possible to connect the pillar / beam joining member and the supporting metal member by the connecting means. Therefore, this also
Beam joint members can be easily temporarily fixed to concrete columns, and it is possible to eliminate the need to embed steel frames in concrete columns, which was required to temporarily secure column / beam joint members to concrete columns. it can.

A connection consisting of an expandable / contractible connector having hooks and loops which can be hooked to each other at both ends, and the other of the hooks and loops respectively provided on the column / beam joint member and each receiving member. According to the means
Extend the hook or loop of the connector in the extended state from the pillar
The pillar / beam joint member can be connected and temporarily fixed to the support metal member by hooking on a loop or a hook between the beam joint member and the support metal member, and then contracting the connector.

Further, the column-beam joint member can be displaced on the support member by expanding and contracting the connecting member, whereby the position of the column-beam joint member on the concrete column can be changed. Fine adjustments can be made.

When a pair of rings are attached to both sides of the web of the beam portion of the pillar-beam joining member and a pair of rings are attached to the supporting metal member at intervals, the hooks are attached to both sides of the web of the beam portion. It is possible to arrange a pair of connecting tools that the two have, and perform contracting and extending operations of both connecting tools, respectively, to perform more precise fine adjustment of the column-beam joint member. Further, when the pillar / beam joining member is placed on the concrete pillar via an axial force receiving metal member, the pillar / beam joining member is mounted as compared with the case where the pillar / beam joining member is placed directly on the concrete pillar. Performing work such as mortar laying on the top surface of the concrete pillar and flattening of the top surface necessary for adjusting the unevenness and height position of the top surface of the concrete pillar before placing the member The area is small. Therefore, the time and labor required for these operations are small, and therefore, the time and labor required until the temporary fixing of the column-beam joint member to the concrete column is completed can be saved.

[0014]

1 to 3, a column / beam joining member 12 arranged on a column 10 having a rectangular cross-sectional shape made of cast-in-place concrete or precast concrete is a temporary fixing device 14 according to the present invention. Is temporarily fixed to the pillar 10.

In the illustrated example, the pillar / beam joining members 12 are combined in a cross shape in a plan view and joined together.
Beam section consisting of two H-section steels 16 and 18, and H-section steels 16 and 1
8 and the H-shaped steels 16 and 18 immediately below the four chevron-shaped steel plates 20 that jointly cooperate with the H-shaped steels 16 and 18 to define four spaces having a rectangular cross-sectional shape. A cylindrical body 22 having a rectangular cross-sectional shape joined to the lower surfaces of the lower flanges 16a and 18a. Each of the four spaces and the cylindrical body 22 allows a plurality of main bars 24 extending upward from the column 10 to pass therethrough.
After the column / beam joining member 12 is temporarily fixed to the column 10, the beam portion and another column which is opposed to the beam portion and which has been temporarily fixed,
A beam member is connected between the beam portion and the beam portion of the beam joining member, and the column portion is filled with cast concrete to form a part of a concrete column.

In the illustrated example, the column / beam joint member 12 is H
Axial force receiving member 26, which is attached to the lower end surfaces of the shaped steels 16 and 18 at their intersections and is surrounded by the cylindrical body 22, which transmits the axial force acting on the column-beam joining member 12 to the column 10 (see FIG. 3). ), And is mounted on the pillar 10. However, the present invention is also applicable to the column / beam joining member 12 that does not have the tubular body 22 and the axial force receiving member 26.

The illustrated axial force receiving member 26 includes a plate 26a which is in contact with the top surface of the column 10 and has a surface area smaller than the cross section of the column 10, and a pair of plates 26a which are disposed on and fixed to the plate 26a. And an L-shaped plate 26b. The two L-shaped plates 26b have their right-angled intersections facing each other or at a small distance from each other so as to cooperate with each other to form a cross shape in a plan view. The axial force receiving hardware 26 is attached to the top surface of the pillar 10 coaxially with the bottom surface of the pillar-beam joining member 12 or coaxially with the bottom surface of the pillar-beam joining member 12 as in the illustrated example. It can be used without a problem.

The top surface of the pillar 10 is adjusted in order to adjust the unevenness of the top surface of the pillar 10 before the pillar / beam joining member 12 is placed, so that the top surface of the pillar 10 is at a predetermined height. For example, mortar is laid on the top surface of the. According to the illustrated example using the axial force receiving hardware 26, the range in which the mortar is spread is the column 10
It is possible to limit the contact surface of the plate 26a of the axial force receiving member having a smaller area than the entire top surface of the plate. Therefore, the time and labor required for the work of adjusting the unevenness and height of the top surface of the pillar 10 are smaller than those required for the entire top surface. This contributes to shortening the working time and labor required to complete the temporary fixing of the column / beam joining member 12.

Further, the cylindrical body 22 and the axial force receiving hardware 26 are set to have the same height dimension, and in the cylindrical body 22, the poured concrete leaks from between the column 10 and the column-beam joint member 12. It acts as a formwork to prevent it. By attaching the tubular body 22 to the pillar / beam joining member 12 in advance, the tubular body 2
It is possible to eliminate the work of installing the formwork for forming the concrete pouring space specified by 2.

The column-beam joint member 12 is suspended by a crane so that the lower flanges 16 of the H-shaped steels 16 and 18 thereof are suspended.
The a and 18a are arranged so as to cross the four side surfaces of the pillar 10 at the central portion thereof when seen in a plan view.

The column / beam joining member 12 according to the present invention is used as the column 1.
The device 14 for temporarily fixing to 0 is a support metal piece 28 fixed to each side surface of the pillar 10, a pair of presser metal pieces 30 placed on the support metal piece 28 at intervals, and a support metal piece 28.
And a fastener 32 that vertically penetrates each presser foot 30.

The illustrated supporting metal member 28 is made of a mountain-shaped steel material and has a U shape as a whole. The supporting metal piece 28 reinforced by a plurality of right triangle-shaped reinforcing plates 34 is arranged so that both end portions thereof face downward and the outer surface of one side portion 28a (FIG. 3) of the angle steel material faces the wall surface of the pillar 10. Has been done. The both ends of the metal support 28 are located on both sides of the surface of the H-shaped steel 16, 18 of the column-beam joint member 12 mounted on the column 10 that extends downward with the webs 16b, 18b of the H-section steels 16, 18 downward. Support hardware 2
Bolt holes 36 are provided at both ends of the hole 8. The bolt hole 36 is preferably an elongated hole extending in the vertical direction as in the illustrated example in order to adjust the mounting position of the supporting metal piece 28 in the vertical direction.

On the other hand, the pillar 10 has a pair of inserts 38, which are open on the side surface thereof and correspond to both bolt holes 36 of the support metal 28, are embedded. A pair of bolts 40 pass through the bolt holes 36 of the supporting metal, respectively, and then inserts 38
It is screwed to. Thereby, the support hardware 28 is fixed to the pillar 10. In the illustrated example, the support hardware 28 and the pillar 10
A spacer 42 made of a plate is arranged between the and. The spacer 42 is provided with a bolt hole corresponding to the bolt hole 36.

The pair of presser members 30 are the webs 16b,
18b on both sides, each of which consists of an elongated plate, and the other side portion 28 connected to one side portion 28a of the angle steel material.
It extends on b in its longitudinal direction. Further, the fastener 32 is composed of an assembly of a bolt 32a and a nut 32b. The bolt 32a penetrates the other side portion 28b of the supporting metal piece 28 from its lower surface to its upper surface, and further, each pressing metal piece 3
0 and the other side portion of the support hardware 28, through one end of the presser hardware 30 via a washer 44 disposed. A nut 32b is screwed onto the bolt 32a and is in contact with the presser foot object 30. Therefore, the presser foot 30 can be rotated around the axis of the bolt 32a.

On the other hand, the other ends of the pair of presser members 30 are in contact with the upper surfaces of the lower flanges 16a and 18a on both sides of the web of the H-shaped steels 16 and 18 of the column / beam joining member 12. Therefore, the lower flange is fastened to the column 10 by screwing the fastener 32, that is, the nut 30, whereby the column-beam joint member 12 can be temporarily fixed to the column 10. This temporary fixing work can be performed while the column / column joining member 12 is suspended on the column 10 by the crane and the suspension by the crane is maintained.

The temporary fixing device 14 can be removed and reused after the connection of the beam member to the column / beam joining member 12 and the pouring of the concrete are completed.

Referring to FIGS. 4 and 5, there is shown another temporary fastening device 50 according to the present invention. The temporary fixing device 50 includes a supporting metal piece 52 fixed to each side surface of the pillar 10,
It includes a connecting means 54 for connecting the pillar / beam joining member 12 and each supporting metal piece 52.

The supporting metal piece 52 has a U-shaped main body 55 having the same shape as the supporting metal piece 28 shown in FIGS. 1 to 3 and arranged in the same state, and both ends of an intermediate portion connected to both end portions of the main body 55. It is composed of a pair of extension portions 56 extending from to in the extension direction. Like the main body 55, each extension is also made of angle steel. The intermediate portion of the main body 55 and both extension portions 56 together have a length dimension substantially the same as the width dimension of the column 10. The supporting metal piece 52 is fixed to the column 10 similarly to the supporting metal piece 28. Regarding the fixing structure of the support hardware 52 and the pillar 10,
In order to avoid duplication of description, the description thereof is omitted and the same reference numerals as those used in FIGS. 1 to 3 are given.

The intermediate portion and both extension portions 56 of the main body 55 of the supporting metal 52 of this example cover the boundary between the cylindrical body 22 and the column 10 below the column-beam joint member 12, and therefore, It is possible to prevent the concrete, which will be placed in the tubular body 22 later, from leaking from the boundary. Support hardware 5 in this example
2 can be used as a part of the temporary fixing device 14 shown in FIG. 1 instead of the support metal 28 shown in FIG.

Each connecting means 54 is a connecting member 58 which is expandable and contractable, that is, whose length dimension can be changed, and which has one of hooks and loops which can be hooked to each other at both ends thereof, and a pillar / column. It is composed of the beam joining member 12 and the other of the hook and the loop provided on the extension 56 of each supporting metal piece.

In the illustrated example, the connector 58 comprises a turnbuckle. The turnbuckle includes a main body and both ends screwed to the main body and having hooks 60. The turnbuckle can be expanded or contracted by increasing or decreasing its length dimension by rotating the main body with respect to both hooks 60. Further, the loops 6 are respectively provided on the pillar / beam joining member 12 and each extension portion 56.
2, 64 are provided. The illustrated loops 62 and 64 are made of steel bars bent into an Ω shape and a U shape, respectively, and are welded to both sides of the web 16b at both ends of the H-shaped steel 16 of the column / beam joint member 12, and each H-shaped The ends of the steel 18 are welded to both sides of the web 18b.
Preferably, all the loops 62 are arranged at the same height position.

Instead of the illustrated example, loops may be provided at both ends of the connector 58, and hooks may be provided at the column / beam joining member 12 and the supporting metal piece 52. Alternatively, hooks and loops are provided at both ends of the connector 58,
On the other hand, loops and hooks may be provided on the pillar / beam joining member 12 and the supporting metal member 52, respectively.

The connector 58 may be a sleeve nut, a fluid pressure jack, a screw jack, or the like, in addition to the illustrated example.

In the illustrated example, when the column / beam joint member 12 is arranged at a predetermined position, the connector 58 and the hook 60 are provided.
And the loop 62 of the pillar / beam joining member 12 and the supporting hardware 5
The two loops 64 are arranged in the same elevation. However, they may be arranged so that they are in different elevations. Further, instead of the illustrated example, for example, the connecting means 54
Are arranged on one surface side of one end of the web 16b of the H-section steel 16 and on the other surface side of the other end of the web, and the same relationship as in the H-section steel 16 is also applied to the H-section steel 18. It may be placed at.

While the column-beam joint member 12 is placed on the column 10 using a crane (not shown) and the suspension is maintained, the loops 62 and 64 of each set are separated from each other by a distance smaller than their mutual spacing. Extension tool 58 with its length adjusted to a very long dimension
The column / beam joint member 12 can be easily attached to the support member 52 by hooking the hook 60 of the above, and then contracting the connector 58 to exert a tensile force between the column / beam joint member 12 and the support member 52. In addition, it can be temporarily fixed in a short time. In the crane, after the column / beam joint member 12 is temporarily fixed, the column / beam joint member 1
Although the suspension of the crane is released, the suspension state is short, so that the crane can be used for other purposes.

After the suspension by the crane is released, the connecting members 58 of the connecting means 54 of each set which are plane-symmetric with respect to the web of the H-section steel are expanded and contracted, respectively, so that the upper pillar / beam is connected. The joining member 12 can be displaced on the column 10, whereby the upper column / beam joining member 1
The fine adjustment of the arrangement position of 2 can be performed.

The supporting member 52 and the connecting member 58 can be removed and reused after the connection of the beam member to the column / beam joining member 12 and the placing of concrete are completed.

[Brief description of drawings]

FIG. 1 is a front view of a support device according to the present invention.

2 is a cross-sectional view taken along line 2-2 of FIG.

3 is a partial cross-sectional view taken along line 3-3 of FIG.

FIG. 4 is a front view of another supporting device according to the present invention.

5 is a cross-sectional view taken along line 4-4 of FIG.

[Explanation of symbols]

 10 Pillar 12 Pillar / Beam Joining Member 14,50 Temporary Fixing Device 28,52 Support Hardware 30 Presser Metal 32 Fastener 36 Bolt Hole 38 Insert 54 Connecting Means 58 Connecting Tool 60 Hook 62,64 Loop

Claims (7)

[Claims] 1. A device for temporarily fixing to a concrete pillar a pillar-beam joining member comprising a beam portion having upper and lower flanges and a web arranged on the concrete pillar, the side surface of the concrete pillar. A plurality of support hardware fixed to, a pair of presser hardware placed on each support hardware at a distance from each other, a fastener penetrating vertically through each support hardware and each presser hardware, A pair of pressers can contact the upper surface of the lower flange on both sides of the web of the beam portion of the pillar-beam joint member, and the fasteners can be used to attach the lower flange to each presser foot and the concrete column. Temporary fastening device that can be tightened between. 2. The apparatus according to claim 1, wherein the support hardware is fixed to the concrete pillar by bolts extending through insert holes provided in the concrete pillar through bolt holes provided in the support hardware. 3. The device according to claim 2, wherein the bolt hole is an elongated hole extending in the vertical direction. 4. A device for temporarily fixing a pillar-beam joining member arranged on a concrete pillar to the concrete pillar, comprising a plurality of support hardware fixed to a side surface of the concrete pillar, and the pillar A temporary fastening device including a beam joining member and a plurality of connecting means for connecting the supporting metal member. 5. A connecting tool, wherein each connecting means is an extendable and retractable connecting tool having one of hooks and loops which can be hooked to each other at both ends thereof, the pillar / beam joining member and each supporting metal member. 5. The device of claim 4, consisting of the other of the hook and loop, each provided. 6. The column-beam joining member has a beam portion made of H-shaped steel, a pair of rings are attached to both sides of the web of the beam portion, and the pair of rings are spaced from each other. 6. The device of claim 5, attached to each support hardware, the connector having hooks at both ends thereof. 7. The device according to claim 1, wherein the column-beam joint member is placed on the concrete through an axial force receiving metal member.