JP2819238B2 - Beam form support apparatus and assembly and disassembly method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam form support device used for constructing a beam having a reinforced concrete structure, and more particularly to a clamp material for supporting a beam form, a beam material, a beam receiving member, and a collapsible support. And a method of assembling and disassembling the same.

[0002]

2. Description of the Related Art In order to improve the efficiency of assembling and disassembling work of a beam formwork, a clamp member for supporting a beam formwork is used instead of a conventional clamp fastener such as a separator. Many beam form support devices to be fixed have been conventionally proposed.

[0003] For example, Japanese Utility Model Publication No. 5-32593 is known as such a beam form supporting device. The conventional beam form supporting device includes a side supporting member and a center supporting member for supporting a clamp material. Are connected to each other by a horizontal member and a diagonal member to form a support of one frame, and the upper end of the center support member is fixed to the large clamp member. Also, casters for lateral pulling movement were provided on the lower side surface of the side support member having jack bases for height adjustment at the upper and lower ends, respectively.

[0004] The beam form support device using the frame support as a support has a structure in which the outrigger with the casters is extended in a state where a plurality of supports are erected and the laterally-moving movement is performed by this. One block tended to be large. Therefore, when the length of the beam becomes long, it has to be divided into blocks of an appropriate length.

[0005] As another beam form support device, for example, a type described in Japanese Patent Publication No. 3-71546 has been proposed. In this beam form support device, a beam member is erected on the lower surface of a clamp material and supported by a plurality of beam receiving members and columns, and the beam receiving members are disposed near both ends and a central portion of the beam member. In addition, a height-adjustable vertical support is connected to the beam receiving members at both ends, and a height-adjustable slanted support is connected to the beam support near the center so as to be swingable.

[0006] When removing the beam form supporting apparatus with the slanted columns, a lifting machine such as a forklift is installed at a substantially central portion of the beam forms to reduce the size of each column and to increase the size of the columns in the beam direction. After holding with a folding suspension chain or the like, the clamp material was loosened to release the mold. The beam form support device supported by the forklift was mounted on another moving cart, which was horizontally moved and diverted to the next section.

[0007]

However, in the conventional beam form supporting apparatus using the frame support as a support, since one beam form is divided, it is difficult to pass through the beam. Techniques were also required to fit the intermediate frame that closed the opening for rebar welding. In addition, there is a disadvantage that the number of lifts at the time of diversion increases due to an increase in the number of blocks.

On the other hand, a beam form support device with a slanted support is
Since the entire beam formwork is supported by beam members, it is easy to pass through the beam, the number of times of lifting is reduced, and the installation of the intermediate frame is easy, but a separate carriage is required for horizontal pulling movement Therefore, there was a disadvantage that the movement was restricted by the number of trolleys. Further, when setting the beam formwork, the vertical column and the inclined column must be extended and fixed at the ends while the entire apparatus is lifted and held by a crane or the like. Was. In addition, if the floor height changes greatly, it is impossible to follow unless the oblique columns are replaced,
When a long slanted strut is used, there is also a disadvantage that the end protrudes largely outside the beam form when folded.

The present invention solves the above-mentioned problems, and provides a supporter that can stand alone in a short period of time without holding it with a crane or the like when setting a beam formwork. It is an object of the present invention to provide a beam form support device that requires only a small number of times of lifting, and that can be moved horizontally without using a truck. It is another object of the present invention to provide a beam form support device capable of storing a column when folded in a compact manner. Another object of the present invention is to provide a method of assembling and disassembling a beam form support device without exchanging the columns even when the floor height greatly changes, and in which the column ends do not protrude outside the beam forms when folded.

[0010]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a beam form support device of the present invention is arranged at appropriate intervals in the longitudinal direction of a beam, and a pair of frame members for supporting a beam side form is placed at an appropriate position. A large pulling member to be fixed, a beam member disposed on the lower surface of the large pulling member and supporting the beam formwork; a plurality of beam receiving members connected to the lower surface of the beam material; A beam support member having a column having a height adjusting portion rotatably connected to an upper end portion thereof, wherein the beam receiving member is provided with a caster for horizontal pulling movement on a lower surface, and has a beam material longitudinal center portion. Two sets of beam receiving members arranged at more symmetrical positions,
A horizontal member and a brace member connecting the columns are detachably mounted, and can be folded and stored above the lower surface of the caster during rotation. Further, the beam form support device according to claim 2 is characterized in that the connection positions of the columns with the beam receiving members do not overlap on the same straight line in the beam longitudinal direction. Further, the beam form support device according to the third aspect is characterized in that the pivot height of the upper end portion when the column is folded is different for each of the sets of the beam receiving members.

According to a fourth aspect of the present invention, there is provided a method for assembling and disassembling a beam form supporting apparatus, wherein a pair of frame members for supporting a beam side form are fixed at appropriate positions by arranging them at appropriate intervals in the longitudinal direction of the beam. And a beam member arranged on the lower surface of the large pulling member to support a beam formwork, and a caster for laterally moving the beam connected to the beam material is attached to the beam member so as to be symmetrical from the central portion in the longitudinal direction of the beam material. A pair of beam receiving members arranged at positions, and an upper end portion is rotatably connected to the beam receiving member, and a height adjusting portion is provided. A horizontal member and a brace member are detachably attached to the beam receiving member. In the method of assembling and disassembling the beam form support device having two sets of columns, an auxiliary column connected to the column is used at the time of assembling, and at the time of dismantling, the auxiliary column is removed and the column is projected out of the beam frame. Move horizontally with folding casters so as not to It is characterized by a door.

[0012]

According to the beam form support device of the present invention, the beam form is fixed by a frame material and a large pulling material arranged at appropriate intervals in the beam longitudinal direction. The large pulling members are supported by an appropriate number of beam members disposed on the lower surface, and are composed of two sets of beam receiving members disposed at symmetrical positions from the central portion in the longitudinal direction of the beam members, and columns connected to the lower surface thereof. Supported. At the time of setting the beam formwork, the columns are vertically erected, and the columns are connected to each other by the horizontal member and the brace member, so that the entire apparatus becomes independent. Since the pillars are arranged from the central portion in the beam longitudinal direction, there is no possibility of interference with the column formwork or wall formwork at the beam end, and each formwork assembling / disassembling operation becomes easy.

At the time of demolding, the frame material is moved to separate the beam side form from the concrete surface, and at the same time, the columns are reduced to lower the beam bottom form. Next, while holding the entire apparatus, the horizontal member and the brace member in the longitudinal direction of the beam are removed, and the column is rotated and stored in the upper part of the caster. When the entire apparatus is lowered to the floor, the casters mounted on the lower surface of the beam receiving member support the entire load. When diverting the beam form support device, perform the horizontal pulling movement in this state, erected the support again at the lifting position, attached the horizontal material and the brace material, returned it to a self-supporting state, lifted it, It is installed in a predetermined position.

Further, in the beam form support device according to the second aspect, even when each of the columns is folded in the direction of the center of the beam, the columns are not overlapped because the connection positions with the respective beam receiving members are shifted. or,
According to a third aspect of the present invention, a column of one of the beam receiving members is folded close to the beam frame, and a column of the other pair is folded below the columns. As described above, since the storage height is different for each set of columns, the horizontal members and the brace members in the direction perpendicular to the beams can be folded without being removed.

The method for assembling and disassembling the beam form supporting apparatus according to the fourth aspect is used when the apparatus is installed on a floor having a large floor height, and when the shoring is set, the auxiliary support is inserted into the lower part of the support but is removed when dismantling and moving. . Therefore, it is possible to fold the pillar end so as not to protrude outside the beam form during the horizontal pulling movement.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a side view of a beam form support device of the present invention, FIG. 2 is a cross-sectional view showing a II-II section of FIG. 1, and FIG. 3 is an enlarged perspective view of a connecting portion of a beam member, a beam receiving member, and a column. . The beam form support device 1 includes a beam clamp 3 for holding and fixing a beam form 2, a beam member 4 disposed on the lower surface in the beam longitudinal direction, and two sets of detachably connected to the lower surface of the beam member 4. It has a beam receiving member 5 and a column 6 for rotatably connecting the upper end to the beam receiving member 5. Casters 7 for horizontal pulling movement are fixed to the lower surfaces of both ends of each beam receiving member 5. A horizontal member 8 and a brace member 9 are detachably connected between the plurality of columns 6 to be provided, and the columns 6 are connected and fixed to each other.

The beam formwork 2 includes a beam bottom formwork 2a in which a joist is attached to a face plate, and two beam side formworks 2b, 2b standing upright on both side ends thereof and arranging horizontal beams on the faceplate at appropriate intervals. A removable side plate 2c is fitted in the longitudinal middle part of the beam side formwork 2b. This opening is used for performing joint welding of a beam bar (not shown) when setting the beam form 2. Since the beam formwork 2 is formed of a threaded member on the beam member 4, the shape of the beam is improved, and the opening side plate 2c can be easily fitted.

As shown in FIG. 2, the beam clamp 3 has a large pulling member 3a whose main body is formed of one square pipe, and a pair of frame members detachably connected to an appropriate position of the large pulling member 3a. 3b, 3
b. A pair of angle steel members 3c, 3c for supporting and fixing the beam bottom formwork 2a are erected on the upper surface of the large attracting material 3a, and are appropriately separated from each other. Are vertically installed in a shape facing a plurality of sets. In this embodiment, four sets of angle steel members 3d are provided at appropriate intervals so that the four beam members 4 can be fixed. The frame material 3b is
A downwardly U-shaped support bracket 3e to be placed on the large attracting material 3a
A beam width adjusting bolt 3f provided at the outer end of the large pulling member 3a to hold the frame member 3b at an arbitrary position on the large pulling member 3a; It has a vertical end thick member 3g that holds the formwork 2b and a reinforcing member 3h that reinforces the side of the vertical end thick member 3g.

A plurality of the beam clamps 3 having the above-described structure are provided on the beam member 4 so as to be appropriately spaced apart in the longitudinal direction of the beam formwork 2 to support and fix the beam formwork 2. In this beam form support device 1, at least the upper part from the beam receiving member 5 is pre-assembled, and even when it is removed from the beam and used for the next construction section, the beam width adjusting bolt 3f is loosened to remove the beam side form 2b. It only moves a little.

The beam member 4 includes an upper chord member 4a, a lower chord member 4b, and a lattice member 4c, and has a length capable of supporting all the plurality of beam clamps 3. In this embodiment, four beams 4
Is used, but may be appropriately increased or decreased according to the shape of the beam. The two sets of beam receiving members 5, 5 arranged at symmetrical positions from the longitudinal center of the beam member 4 have a pair of receiving members 5a, 5a each having a substantially U-shaped cross section, and these are not shown. It is connected in a back-to-back state by the joining plate. This beam receiving member 5
The connection between the beam member 4 and the beam member 4 is performed by a detachable hook fitting 10. As shown in FIG. 3, the hook fitting 10 is provided with receiving members 5a at both ends of a convex member 10a that holds the lower chord member 4b of the beam member 4.
The nail 10b for locking the flange is attached with a bolt and nut 10c, and can be removed by loosening the bolt and nut 10c.

The beam receiving member 5 has an end protruding to the side of the beam member 4, a caster mounting member 7a formed by cutting an H-shaped steel is fixed to the lower surface of the end, and the wheel portion 7b is fixed to the lower surface. I do. Thus, a gap for accommodating the column 6 when folded is provided between the lower surface of the wheel portion 7b and the beam receiving member 5 via the caster mounting member 7a.

As for the column 6, a jack base 11 is attached to a lower end of a column main body 6a made of a steel pipe, and a head jack 12 is also attached to an upper end. The upper end of the head jack 12 is rotatably supported via support pins 13a, 23a on support mounting brackets 13, 23 fixed to the lower surface of the beam receiving member 5.
As shown in FIG. 2, the connection positions of the column mounting brackets 13 and 23 and the beam receiving members 5 and 5 do not overlap on the same straight line in the longitudinal direction of the beam. Therefore, even when the columns 6 are folded toward the center of the beam, they do not overlap.

Further, as shown in FIGS. 3 and 4, one of the pole mounting brackets 13 is formed to have a short hanging member, and the other of the pole mounting brackets 23 is formed to have a long length. Elongated holes 13b, 23b are formed in the support fittings 13, 23 so that the support pins 13a, 23a can be moved in the vertical direction. When the support column 6 is erected, the support pins 13a and 23a move above the elongated holes 13b and 23b, and the head jack 12 directly supports the lower surface of the beam receiving member 5. When the support column 6 is folded, the support pins 13a and 23a are inserted into the slots 13b and 23b.
And the tip of the lower strut is pivoted away from the beam receiving member 5.

FIG. 5 is a side view of the beam form support device when the column is folded. A pair of columns 6, 6 on the side of the column mounting bracket 13 are folded close to the beam form 2, and the column mounting bracket 2 is folded.
The columns 6, 6 on the three sides are folded below these. Since the storage height differs for each set of columns, the horizontal member 8 and the brace member 9 in the direction perpendicular to the beam can be folded without being removed. In addition, since the column 6 is folded toward the center of the beam, the entire column 6 is stored on the lower surface of the beam form 2 and the end of the column 6 rarely projects outside. For this reason, the operation at the time of movement becomes easy, and even when lifting using an opening provided in accordance with the size of the beam formwork, it can be lifted in a folded state.

Cup lock mechanisms 14 are provided at two upper and lower portions in the middle of the column body 6a, thereby fixing the horizontal member 8. The cup lock mechanism 14 includes a lower cup 14a fixed to the support body 6a and opening the upper surface, and an upper cup 14b facing the lower cup 14a and opening the lower surface and capable of moving up and down and rotating along a guide material (not shown). . The configuration is such that a protruding piece 8a projecting from the end of the horizontal member 8 is inserted into the mutual cup, and the upper cup 14b is beaten and rotated to fix the cup. A brace engaging piece 8b protrudes near the end of the horizontal member 8, and the brace member 9 is detachably attached.

The height of the column 6 is adjusted by rotating the handle of the head jack 12 and the jack base 11, but even if the floor height changes due to a large adjustment allowance for the shaft member 11a of the jack base 11. It is possible to follow a considerable range without replacing the column 6. That is, even when a floor with a high floor is constructed, the length of the jack base 11 can be adjusted. In addition, it is necessary to select a symmetrical position from the center in the longitudinal direction of the beam so that the column 6 can support the beam member 4 at two points, and to have a member cross section capable of sufficiently withstanding the acting axial force.

Next, the operation of the beam form support device will be described. The entire beam form support device 1 is assembled in advance with the horizontal member 8 and the brace member 9 removed. At this time, prop 6
Is folded substantially parallel to the beam member 4 about the upper end. When setting the beam form support device 1, the entire device is suspended at a required position by a crane or the like (not shown), and the support 6 is hung in a suspended state, and the horizontal member 8 and the brace member 9 are connected thereto. I do. The support column 6 has a support pin 13a at the upper end,
Since the pins are connected by the pins 23a, when the apparatus is supported only by the columns 6, the apparatus becomes unstable unless the entire apparatus is lifted and held by a crane or the like.
If the crane is connected, the crane can be detached. As described above, since it is possible to leave the crane relatively early, the efficiency of the crane operation can be improved.

The self-supporting beam form support device 1 connects the both ends of the beam form 2 to the beam connection openings provided in the column forms 15, 15, so that the jack base 11 and the head jack 1 are connected.
Rotate the handle 2 to adjust the height. The column form 15 is fastened by using a binding member such as a column clamp 15a. However, as shown in FIG. 1, since the columns 6 are arranged from the center in the beam longitudinal direction, as shown in FIG. A space is provided between them. Therefore, assembling and disassembling operations of the beam form support device 1 and the column form 15 are easy.

At the time of demolding, the frame material 3b of the beam clamp 3 is moved to separate the beam side frame 2b from the concrete surface, and at the same time, the column 6 is reduced to lower the beam bottom frame 2a from the concrete surface. In this state, a lifting device such as a forklift is installed substantially at the center of the beam formwork 2 to support the entire device, and then the horizontal member 8 and the brace member 9 in the beam longitudinal direction are removed.
Each column 6 is folded toward the center of the beam, and each column 6 is held on the beam member 4 by a chain or the like. As described above, since the beam form support device 1 can be moved without particularly requiring a cart, the efficiency of diversion work can be improved. When diverting to build a beam on the upper floor, lift it using a crane at the lifting position, re-establish the support 6, attach the horizontal member 8 and the brace member 9, return to a self-supporting state, and lift It is installed at a predetermined position of the diversion destination.

Next, an embodiment of a beam form support device installed on a floor having a considerably high floor will be described with reference to FIG. When the height of the column 106 provided in the beam form support device 101 is high and the length is not enough, a joint set pin (not shown) is inserted into the joint portion 106b, and the auxiliary column 2 having an appropriate length is inserted.
06. At the time of the shoring setting, the auxiliary strut 206 and the strut 106 are previously erected on the beam construction portion using the horizontal member 108 and the brace member 109, and the beam form supporting device 105 is assembled from the beam receiving member 105 pre-assembled thereon. 101 is lifted and placed by a crane.

At the time of dismantling movement, the entire apparatus is supported using a lifting device, and the lower portion is removed from the joint 106b.
Next, the horizontal member 108 and the brace member 109 in the beam longitudinal direction of the column 106 are removed, each column 106 is folded toward the center of the beam and held by a chain or the like. Even in the case of such a shoring installation on a floor having a high floor, there is no need to replace the strut 106 by using the auxiliary strut 206 having an appropriate length. Therefore, when the length of the support 106 is folded, the beam form 1
Even if the length is set to a predetermined value so as not to protrude outside of the floor 02, it is possible to cope with a wide range of floor heights by appropriately selecting the auxiliary support 206.

[0032]

As described above, the beam form support device of the present invention has a configuration in which the columns can be connected to each other with the horizontal member and the brace member. The crane can be made self-sustaining in a short time, and the efficiency of crane work can be improved. In addition, a space is provided between the column formwork and the wall formwork connected to the end portion so that the support column is set up from the central portion in the beam longitudinal direction, so that mutual assembling and disassembling operations can be facilitated. .

In order to construct a beam form on a beam material,
Beams are better and unit blocks are larger, so less lifting is required when diverting. In addition, since the casters are mounted on the beam receiving members, when the columns are folded, they can be moved laterally without the need for a truck, thereby increasing the efficiency of diversion work.

Further, in the beam form support device according to the second aspect, since the connecting positions of the columns do not overlap on the same straight line in the longitudinal direction of the beam, each column can be folded toward the center of the beam. For this reason, there is almost no case where the end of the column projects outside the beam formwork, and the operation at the time of movement becomes easy.

In the beam form supporting device according to the third aspect, since the turning height of the upper end when the column is folded is different for each group, one of the columns is folded close to the beam form. , The other set of struts can be folded below them.
As described above, since the storage height is different for each set of columns, the horizontal members and the brace members in the direction perpendicular to the beams can be folded without being removed.

According to the method for assembling and disassembling the beam form supporting apparatus according to the fourth aspect, even when the apparatus is installed on a floor with a large floor height, the auxiliary pillar is used for disassembly and removal, so that the pillar end is folded when folded. Its length can be determined so that it does not protrude outside the frame.

[Brief description of the drawings]

FIG. 1 is a side view of a beam form support device.

FIG. 2 is a sectional view showing a II-II section in FIG. 1;

FIG. 3 is an enlarged perspective view of a connecting portion between a beam member, a beam receiving member, and a column.

FIG. 4 is an enlarged perspective view of another connecting portion of the column and the beam receiving member.

FIG. 5 is a side view of the beam form support device when the column is folded.

FIG. 6 is a side view of a beam form support device according to another embodiment.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 beam form support device 2 beam form 3 beam clamp 3 a large pulling material 3 b frame material 4 beam material 5 beam receiving member 6 post 7 caster 8 horizontal material 9 brace material 11 jack base 12 head jack 13 post mounting bracket 23 post mounting Metal fittings

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hisashiri Kono 2-14 Shineicho, Naka-ku, Nagoya-shi, Aichi Prefecture Kashima Construction Nagoya Branch Co., Ltd. (72) Inventor Mitsuhiko Ikegami 2--Urasato, Midori-ku, Nagoya-shi, Aichi Prefecture 17 Nagoya Branch of Holly Corporation (72) Inventor Ikuo Hattori 1-15 Kanayama, Komashinmachi, Toyota City, Aichi Prefecture Chubu Holly Industry Co., Ltd. (58) Field surveyed (Int. Cl. ⁶ , DB name) E04G 25 / 00-25/08 E04G 11/36-11/56

Claims (4)

(57) [Claims] 1. A large pulling member which is disposed at appropriate intervals in the longitudinal direction of a beam and fixes a pair of frame members for supporting a beam side mold at an appropriate position, and an appropriate number of beams disposed on the lower surface of the large pulling material. A beam having a beam member for supporting a formwork, a plurality of beam receiving members connected to a lower surface of the beam member, and a column having an upper end portion rotatably connected to the beam receiving member and having a height adjusting portion. In the formwork supporting device, the beam receiving member is provided with a caster for horizontal pulling movement on a lower surface, and is disposed at a symmetrical position from a central portion in a longitudinal direction of the beam material.
A beam form member comprising: a pair of beam receiving members, wherein the column is removably mounted with a horizontal member and a brace member connecting the columns, and can be folded and stored above the lower surface of the caster during rotation. Support device. 2. The beam formwork supporting device according to claim 1, wherein the connecting positions of the columns with the beam receiving members do not overlap on the same straight line in the longitudinal direction of the beam. Support device. 3. The beam form support device according to claim 1, wherein a pivot height of an upper end portion of the column when the column is folded is different for each of the beam receiving members of each group. 4. A large pull-off member arranged at appropriate intervals in the longitudinal direction of the beam to fix a pair of frame members for supporting the beam side formwork at an appropriate position, and an appropriate number of beams disposed on the lower surface of the large pull-off member. A beam member for supporting the formwork, two sets of beam receiving members connected to the beam material, mounted with casters for horizontal pulling movement, and arranged at symmetrical positions from the center in the longitudinal direction of the beam material; Assembling and disassembling of a beam form support device having two sets of columns which are rotatably connected to an upper end thereof, provided with a height adjusting portion, detachably mount a horizontal member and a brace member, and are folded and stored above the lower surface of the caster. In the method, an auxiliary column connected to the column is used at the time of assembling, and the auxiliary column is removed at the time of dismantling and the column is laterally moved by a folding caster so that the column does not protrude outside the beam formwork. Assembly and disassembly method of the beam form support device.