JPH04309665A - Beam mold support unit - Google Patents

Abstract

PURPOSE:To obtain a beam mold support unit, assembly and disassembly of which are facilitated and which can be assembled accurately with a simple adjusting mechanism without using a separator especially and which can be formed into a unit without using a special support member and of which volume to be occupied by one unit at the time of disassembly and movement is small. CONSTITUTION:A beam side surface mold 2 and a beam bottom surface mold 3 are bonded at bonding parts thereof freely to turn to form a unit of a beam mold B. Vertical load of this beam mold B is supported by a sleeper member 7 and a support 24. The beam side surface mold 2 is supported by a beam side surface mold supporting member D, which is fitted to the sleeper member 7 through a bolt and nut 14 freely to turn. The support 24 is extended at the time of assembly to support the beam mold B or the like, and is shrunken at the time of disassembly and movement to be tuned for housing to the beam mold B side.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beam form shoring unit that can be assembled, dismantled and moved without making a small payment.

0002

BACKGROUND OF THE INVENTION Conventionally, beam form supports used in constructing beam members of concrete structures have been constructed separately for the beam form and the support supporting the beam form. That is,
The conventional construction order for beam formwork shoring is to first assemble the shoring at the predetermined location where the beam will be constructed, then place the lumber and joists on top of it, and then place the beam bottom formwork on top of it to the predetermined height. The beam side formwork was to be assembled after the beam was installed.

[0003] Normally, a separator that fits the width of the beam is used to assemble this beam side formwork, and form ties and washers are connected to this separator, and vertical thick members and horizontal members placed outside the beam side formwork are connected to the separator. The lateral pressure during concrete pouring was supported by tightening the end pieces.

[0004] Also, when dismantling the formwork support, the form ties are loosened in the opposite direction to when assembling, the vertical end thick members, the horizontal end thick members, and the beam side formwork are removed, and then the support is loosened. The bottom formwork, joists, lumber, etc. were paid in small amounts.

[0005] Furthermore, when reusing these formwork supporting materials, each member that has been paid in small quantities is moved to a predetermined beam position, and
I reassembled it in the same order.

[0006]

[Problems to be Solved by the Invention] However, the construction of such conventional beam formwork supports requires a large number of skilled formwork engineers because the assembly and disassembly procedures are complicated. In particular, the installation of separators when assembling beam side formwork is extremely difficult, even for experienced workers, as this work must be done in a narrow space.

Furthermore, since a large number of formwork supporting materials are assembled each time, it is difficult to maintain the precision of the formwork.

[0008] Furthermore, since assembly, disassembly, and movement are performed on a small payment basis, the types and quantities of materials handled are extremely large.
Work efficiency was poor. In addition, because such a large number of materials are temporarily stored on the site, the site becomes complicated and safety problems arise.

Furthermore, if the beam formwork of a predetermined length and the shoring are connected and constructed as a unit, the disadvantages of the above-mentioned piecemeal construction will be eliminated, but the shoring will be removed even when dismantled and moved. Because the structure was supported by beam formwork, each unit occupied a large volume, which placed considerable restrictions on movement. Furthermore, when the beam formwork is made into units, there are disadvantages in that it becomes difficult to fine-tune the construction and the street, and the adjustment mechanism becomes complicated, and there is also the disadvantage that ready-made products cannot be used for shoring materials, etc.

The present invention solves the above-mentioned drawbacks of conventional formwork supports, and enables easy assembly and disassembly of beam formwork supports.In particular, it can be assembled with high accuracy using a simple adjustment mechanism without using separators, Moreover, it is an object of the present invention to provide a beam form shoring unit that can be formed into a unit without using special shoring materials and that occupies a small volume per unit during disassembly and movement. Furthermore, by unitizing the beam formwork shoring, one of the objectives is to eliminate small payments and increase work efficiency, and to improve site safety by reducing the amount of materials temporarily stored on site. It is one.

[0011]

[Means for Solving the Problems] In order to solve the above problems, a beam formwork shoring unit according to claim 1 includes a beam side formwork of a predetermined length and a predetermined length that fits the beam side formwork. A beam formwork rotatably joined to the beam bottom formwork at the joint portion of both, and large lumber members arranged at predetermined intervals in the transverse direction of the beam formwork and supporting the beam bottom formwork. and a beam side formwork support member that is joined to the large tension member to support the beam side formwork and rotate the beam side formwork around the joint, and is rotatable with the large tension member. In the beam formwork shoring unit, the beam side formwork support member is rotatable around a pin member that passes through the large tension member. a vertical end member that is attached to the vertical end member, a arm member that projects parallel to the large tension member at a height that the pin member is inserted from the vertical end member, and a tip of the arm member and the vertical end member. a diagonal member having both ends fixed to the upper part of the arm; and a diagonal member attached to the large tension member that engages with the tip of the arm member to support the arm member, and the arm member, the diagonal member, and the vertical end member. and a rotating means for rotating the and the same integrally around the pin member.

Further, in the beam formwork support unit according to claim 2, the beam side formwork support member is disposed at a lower part of the arm member and engages with a lower end portion of the vertical end member. It is characterized by having a second rotation means for integrally rotating the vertical end member, the arm member, and the diagonal member around the pin member.

[0013] Further, in the beam formwork shoring unit according to claim 3, the shoring includes an extensible support column having an upper support plate, a support plate connecting plate fixed to the upper support plate, and the support plate. A shaft guide member fixed to the end of the plate connecting plate, a shaft member loosely fitted into the shaft guide member, and a shaft member fixed to the large tension member while locking the shaft member and connected to the support plate and the receiving plate connecting plate. It is characterized by having a shaft locking member that allows the shaft guide member and the shaft guide member to rotate integrally around the shaft member.

[0014]

[Operation] The beam formwork shoring unit according to claim 1 is a beam formwork unit having a predetermined length, which is formed by rotatably joining a beam side formwork and a beam bottom formwork at the joints thereof. form. The vertical load of the beam formwork is supported by a large support member that supports the beam formwork in the cross-sectional direction, and an expandable shoring member that is rotatably connected to the large support member. Further, the beam side formwork is supported by a beam side formwork support member rotatably attached to the main lumber via a pin member. This beam side formwork support member is composed of a vertical thick member, a cross member, and a diagonal member that are fixed to each other, and operates in an integrated manner, and rotates around a pin member by means of rotation means that supports the tip of the cross member. It is rotated to adjust the construction of the beam side formwork. Further, the shoring is extended during assembly to support the unitized beam form, etc., and during disassembly and movement, it is contracted and rotated toward the beam form to be stored.

[0015] Furthermore, in the beam formwork shoring unit according to claim 2, the erection of the beam formwork can also be adjusted by the second rotation means disposed at the lower part of the arm member of the beam side formwork support member. It is.

[0016] Furthermore, in the beam formwork shoring unit according to claim 3, the upper support plate of the support column is fixed to the support plate connection plate to support the lumber. A shaft guide member is fixed to the end of this receiving plate connecting plate, and the shaft member is loosely fitted therein. This shaft member is engaged with a shaft locking member that is fixed to the main lumber, and when the beam formwork shoring unit is dismantled or moved, the reduced column is rotated around the shaft member toward the large lumber. and store it.

[0017]

Embodiments Next, embodiments of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 is a sectional view of a beam form support unit of the present invention, and FIG. 2 is a side view. This beam formwork support unit A is arranged at predetermined intervals in the transverse direction of the unit in order to support the beam formwork B assembled to a predetermined length and the load acting on this beam formwork B. It is composed of a load supporting member C.

This beam formwork B has a beam side formwork 2 installed on both sides of the beam 1 on which concrete is to be poured, and a beam side formwork 2 that is placed on the bottom side of the beam 1 in contact with the lower end of the inner surface of the beam side formwork 2. It consists of a beam bottom formwork 3 to be installed. This beam bottom formwork 3 is a metal form 4 of a fixed length with a predetermined layout that matches the width of the beam 1.
are arranged to constitute a face plate, and the beam side formwork 2 is made up of a metal form 4 with a predetermined layout and an auxiliary panel 5 for beam height adjustment coupled to form a face plate with a predetermined beam height. This auxiliary panel 5 is made of a crosspiece or the like cut to a predetermined size, and is connected to the metal form 4 with bolts and nuts (not shown). By adjusting the number of auxiliary panels 5, it can be used for other beam forms B having different beam heights.

The beam side formwork 2 and the beam bottom formwork 3 are connected using a corner member 6, and the corner portion 6a of this corner member 6 is structured to be rotatable. Although the metal foam 4 is used for the face plate in this embodiment, the present invention is not limited to this, and it goes without saying that a processed wooden panel of a regular length may also be used.

The load supporting member C that supports the beam formwork B assembled to the above-mentioned predetermined length is the large tension member 7 that supports the vertical load acting on the beam bottom formwork 3 and the beam side formwork 2. and a beam side formwork supporting member D that supports the lateral pressure acting on the beam side formwork 2, and there is a shoring 24 as a member that supports the above total load. These load supporting members C are appropriately arranged in the transverse direction of the beam form B according to the load acting on them, as shown in FIG.

Next, the large tension member 7 constituting the load supporting member C will be explained based on FIGS. 3 to 5. 3 is a front view of the large pull material 7, FIG. 4 is a bottom view thereof, and FIG. 5 is a side view thereof. Ohiki material 7
are arranged at predetermined intervals depending on the applied vertical load and the rigidity of the beam bottom formwork 3. The main material 7 is two channel steel 8
The respective webs 8a are arranged facing each other at a predetermined interval, and end connecting steel plates 9a are welded to both ends, and furthermore, a web connecting steel plate 9b and a web reinforcing steel plate 9 are welded to both ends.
A plurality of groove steels 8 are welded and reinforced, and these two groove steels 8 are integrated. In addition, a hanging hole 10 is provided in the end connecting steel plate 9a.
Drilling a hole will make it easier to hang the lifting equipment. In addition, there are 2
Shoring joint portions 25 are provided at locations.

[0022] Into the gap between the two channel steels 8 formed by the web connecting steel plates 9b, the thick vertical members 11, arm members 12 and diagonal members 13 constituting the beam side form support member D are inserted. A plurality of bolt holes 8b through which the vertical thick material 11 is inserted are bored in the web 8a of the channel steel 8 at the position where the vertical thick material 11 is inserted. 11 is engaged with this large tension member 7. Moreover, this large tension member 7 has an overhanging portion 7a that overhangs from both sides of the beam 1, and a web 8 of channel steel 8 is also provided near the tip of this overhanging portion 7a.
A plurality of bolt holes 8c are drilled in a. A support bolt 15 that locks the rotation means E of the beam side formwork support member D attached to the tip of the arm member 12 is inserted into the bolt hole 8c.

Furthermore, a bottom form fixing member 16 is attached to the portion of the large tension member 7 that supports the beam bottom form 3. This bottom formwork fixing member 16 will be explained based on FIGS. 6 and 7. Figure 6
7 is a side view of the beam bottom formwork fixing member 16 attached to the large tension member 7, and FIG. 7 is a sectional view taken along VII-VII in FIG. 6. The bottom formwork fixing member 16 includes a washer 16a shaped to fit into the lower flanges 8d of two channel steels 8 disposed at a predetermined interval, a bolt 16b and a nut 16c inserted through the washer 16a, and a bolt 16b and a nut 16c. It has a formwork locking member 17 that locks the tip of the mold 16b. The formwork locking member 17 is made of an angle iron 17a cut to fit between the ribs 4b of the metal form 4, a nut 17b welded along a bolt hole drilled in the angle iron 17a, and an angle iron 17a. A round bar 17c protrudes from one end and is inserted into the rib hole 4a of the metal form 4, and a round bar 17c protrudes from the other end of the angle bar 17a and engages with another rib hole 4a to lock the formwork locking member 17 into the metal form 4. It consists of bolts and nuts 17d that lock onto the form 4.

Bottom formwork fixing member 16 having the above structure
When fixing the beam bottom formwork 3 to the large tension member 7 using The bolt 16b is attached to the angle iron 17 of the formwork locking member 17.
A is screwed into the nut 17b, and the nut 16c is tightened, and the washer 16a is pressed against the lower flange 8d of the channel steel 8 and fixed.

Next, the beam side form support member D and its rotation means E will be explained based on FIGS. 8 to 11. 8 is a side view of the beam side form support member D, FIG. 9 is a front view of the same, FIG. 10 is a plan view of the same, FIG. 11 is a side view of the rotating means E, and FIG.
FIG. 1 is a sectional view showing a cross section taken along line XII-XII in FIG. This beam side form support member D includes a thick vertical member 11, a cross member 12 vertically protruding from the lower part of the thick vertical member 11, a tip of the cross member 12, and an upper part of the thick vertical member 11. and diagonal members 13 fixed at both ends.

The thick vertical member 11 is a square steel pipe having a cross-sectional shape that substantially matches the predetermined interval formed by the webs 8a of the two channel steels 8 of the large tension member 7, It is disposed in contact with the outer surface of the metal form 4 (FIG. 1). Bolt holes 11a are drilled in the lower end of the vertically thick material 11 on the side surface facing the web 8a, respectively.
Bolts and nuts 14 are fastened to lock them to the channel steel 8 of the large tension member 7. A cross arm member 12 made of a square steel pipe having the same cross section as the thick vertical member 11 is welded to the height where the bolt hole 11a is bored. This arm member 12 is housed in the gap formed by the webs 8a of the two channel steels 8 of the large tension member 7. The diagonal member 13 is formed of a square steel pipe having the same cross section as the thick vertical member 11 and the arm member 12, and both ends thereof are connected to the thick member 11 and the arm member 12, respectively.
The entire supporting frame is welded to form a triangular support frame, and the entire support frame supports the load acting on the beam side formwork 2.

[0027] The thick vertical member 11 also protrudes below the part to which the arm member 12 is welded, and the arm member 1 at this protruding portion
A reinforcing iron plate 11b is attached to the side surface on the second side. A long shaft bolt 18, which is a second rotation means of the beam side formwork support member D, comes into contact with the reinforcing iron plate portion 11b. The long shaft bolt 18 is shown in Figure 1.
As shown at 3, it is screwed to a steel plate 9d connecting the webs 8a of the two channel steels 8 on the lower side of the arm member 12 and a nut 9e welded to the steel plate 9d. When this long shaft bolt 18 is screwed in, the lower end of the vertical thick material 11 is pushed, and the vertical thick material 11 is pushed.
is inclined outward of the beam side formwork 2 with the bolt/nut 14 as the center.

A bolt attachment member 19 made by cutting angle iron is welded to the tip of the arm member 12. A rotating bolt 20 constituting the rotating means E is screwed into a bolt hole 19a formed at the tip of the bolt mounting member 19 and a nut 19b welded along the bolt hole 19a.

As shown in FIGS. 11 and 12, the rotating means E having the rotating bolt 20 is housed in the gap formed by the webs 8a of the two channel steels 8 of the large tension member 7. Consisting of a U-shaped member 21 formed by bending a steel plate, and a rotating bolt 20 inserted through a bolt hole 21b drilled in a bent portion 21a of the U-shaped member 21, both side surfaces of the U-shaped member 21 The support bolt 15 is inserted into the bolt hole 21d drilled in the bolt hole 21c. The pivoting means E is locked to the large tension member 7 by this support bolt 15, and at the same time the pivoting bolt 2
The pivot bolt 20 is supported by the bent portion 21a of the U-shaped member 21 by the nut 20a welded to the pivot bolt 20, and furthermore, the tip of the arm member 12 is supported by the bolt mounting member 19 screwed into the pivot bolt 20. be done. That is, the triangular support frame made up of the thick vertical members 11, the arm members 12, and the diagonal members 13 is secured to the large tension member 7 by bolts and nuts 14 and support bolts 15 that pass through the thick vertical members 11. .

The beam side form support member D, which is made of a triangular support frame, can be attached to the tip of the arm member 12 by adjusting the screwing amount of the rotation bolt 20 of the rotation means E into the bolt attachment member 19. The entire support frame can be rotated around the bolts and nuts 14 while adjusting the height. That is, when the rotation bolt 20 is screwed into the bolt attachment part 19, the tip of the arm member 12 is lowered, and the entire support frame is tilted outward of the beam side form 2 with the bolt nut 14 as the center. In this way, the erection of the beam side formwork 2 is adjusted.

Beam side formwork support member D as described above
A horizontal thick member 111 is arranged along the outer surface of the vertical thick member 11 in order to pass through the beam side formwork 2 supported by the beam side formwork 2 . This horizontal thick member 111 is made of lightweight type steel, square steel pipe, or round steel pipe, and has a hook bolt 112 and a washer 113 that lock into the rib hole 4a of the metal form 4.
It is concluded by. As shown in FIG. 2, when mutual beam formworks B are connected directly or through auxiliary beam formwork 22, a long horizontal end thick member 111 is used to pass these paths.
are arranged along the outer surface of each vertical thick member 11. Further, when the interval between the beam side formwork supporting members D is widened, an auxiliary vertical thick member 23 may be inserted between the beam side formwork supporting members D.

Next, the shoring 24 and the shoring joint 25 will be explained based on FIGS. 1 to 4 and FIGS. 14 to 18. 14 is a side view of the shoring joint portion 25, FIG. 15 is a plan view thereof, and FIG. 16 is a front view thereof. Also, Figure 1
7 is a receiving plate connecting plate 26 that constitutes the shoring joint part 25
FIG. 18 is a side view of the same. As shown in FIGS. 1 and 2, the shoring 24 includes pipe supports 124 of a fixed length.
Use.

The shoring joint part 25 is made by bending a steel plate into a U-shape and connecting the bent part 27a with a large tension member 7 groove type steel 8.
a large tension connecting member 27 welded to the lower surface flange 8d;
A rotating pin 28 that is inserted through a pin hole 27c formed on both opposing sides 27b of this large tension connecting member 27, a receiving plate connecting plate 26 that is attached to the U-shaped inside of the large tension connecting member 27, and It has a pin guide member 29 which is fixed to the end of the receiving plate connecting plate 26 and into which the rotation pin 28 is loosely fitted, and a support receiving member 30 which is attached to the side surface 27b of the tension connecting member 27. As shown in FIGS. 17 and 18, bolt holes 124c are formed in the lower surface of the receiving plate connecting plate 26, and are formed in the upper receiving plate 124b attached to the upper part of the inner pipe 124a of the pipe support 124.
A plurality of bolts 26a protrude to fit into the pipe support 124, and the pipe support 124 is fixed to the receiving plate connecting plate 26 by screwing nuts 26b. The receiving plate connecting plate 26 is rotatable around the rotation pin 28 via the pin guide member 29, but when the shoring 24 is assembled, the bolts 2 of the receiving plate connecting plate 26 are rotated.
The entire upper surface where the projecting part 6a is not provided comes into contact with the bent part 27a of the large tension connecting member 27, and the load acting on the large tension member 7 is transmitted to the shoring 24.

The support receiving member 30 is a U-shaped member formed by bending a steel plate, and is welded to a predetermined side plate 27b of the main connecting member 27. When dismantling and moving, a pipe support 124 is installed inside the U-shape of this support receiving member 30.
The outer tube 124d of is inserted. Pin holes 30b are bored in both side plates 30a of the support receiving member 30, and the outer tube 124
When storing d, the joint pin 31 is inserted and supported.

As shown in FIG. 4, the two large tension connecting members 27 attached to the large tension material 7 are each at a somewhat slanted angle (approximately 5°) with respect to the member direction of the large tension material 7, and each The support receiving member 30 is the other party's large tension connecting member 2
Install it in parallel so that it is on the extension line of 7.

During assembly, the insertion pin 124g is inserted into the elongated hole 124e formed in the upper part of the outer tube 124d and the joint pin hole 124f of the inner tube 124a. The height of this insertion pin 124g is set between the handle 124h and the rotary plate 124.
i is adjusted by rotating it along the threaded portion 124j.

Next, the operation during assembly of the beam form support unit A of this embodiment will be explained based on FIGS. 19 and 20. FIG. 19 is a front view when assembled, and FIG. 20 is a side view of the same. During assembly, the beam formwork shoring unit A having the above configuration is supported using lifting equipment such as a forklift 32, as shown in FIG. At this time, the outer pipe 124d of the pipe support 124 is lifted and reduced, and the upper support plate 124a and the support plate connection plate 26 are rotated around the rotation pin 28, and other supports fixed to the same large tension member 7 are moved. The outer tube 124d is sandwiched between the support receiving member 30 provided in the joint portion 25, and the support receiving member 3
Insert the joint pin 3 into the pin hole 30b in the side plate 30a of 0.
1 to hold this pipe support 124. Similarly, other pipe supports 124 are also expanded and contracted to be stored.

The beam form support unit A is moved to a predetermined location where the beam 1 will be constructed, and lifted to a predetermined height using a lifting device such as a forklift 32, and the pipe support 124 is expanded and assembled. Thereafter, the height of the support 24 is adjusted by adjusting the height of the inner tube using the handle. Adjustment of the set-up of the beam formwork B is carried out using the rotation bolt 20 of the rotation means E or the longitudinal bolt 18 of the second rotation means described above.

As shown in the side view of FIG. 2, the mutual formwork supporting units A have the joint surfaces of the beam formwork B depending on the span length of the beam 1 and the length of the standard size unit. They may be directly joined using U-clips or bolts (not shown), or a metal form or processed wooden panel with a predetermined layout for dimension adjustment may be sandwiched as the auxiliary beam formwork 22.

Next, operations during disassembly and movement will be explained. In the cross-sectional view of FIG. 1, after a predetermined curing period has elapsed after concrete pouring of the beam 1, the rotating bolt 2 of the rotating means E
0 into the bolt mounting part 19 and the long shaft bolt 1
8 is screwed into the lower end of the thick vertical member 11 while being pressed, and the triangular support frame including the thick vertical member 11 is tilted outward around the bolt nut 14 through which the large tension member 7 is inserted. At this time, the beam side formwork 2 rotates around the corner portion 6a of the corner member 6, so that it can be completely peeled off from the concrete surface. With the beam side formwork 2 peeled off in this manner, the joints of the beam formwork B constituting each unit are dismantled, and if necessary, the auxiliary beam formwork 22 is dismantled and removed. Thereafter, as in the case of assembly, a forklift 32 or the like is inserted under the beam form B to temporarily receive the upper load. In this embodiment, a forklift 32 or the like is used as the lifting device, but it is of course not limited to this as long as it can support the weight of the beam form support unit A.

[0041]

As explained above, the beam formwork shoring unit according to claim 1 forms a unitized beam formwork by rotatably joining the beam side formwork and the beam bottom formwork. By integrating the triangular integral beam side formwork support member that supports the beam side formwork and the rotatable and expandable shoring material into a unit, assembly and disassembly of the beam formwork is easy. Can be done. In particular, since the triangular beam side form support member can be rotated arbitrarily by the rotating means, the erection adjustment of the beam form is facilitated. In addition, it is possible to provide a beam formwork shoring unit that occupies a small volume during dismantling and moving, which eliminates the need for bulk payment work, increases work efficiency, and reduces the amount of materials temporarily stored on site. , it can also improve on-site safety.

Furthermore, the beam formwork support unit according to claim 2 is provided with a second rotation means at the lower part of the vertical end member of the beam side formwork support member to facilitate construction adjustment. Can be done.

[0043] Furthermore, the beam form support unit according to claim 3 is provided with a shaft locking member, a shaft member, and a shaft guide member that are connected to the large tension member, and further includes a support plate that is fixed to the upper support plate of the support column. By providing a connecting plate, it is possible to provide a simple beam formwork shoring unit that can be used as is without any modification to a ready-made pipe support.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a beam formwork shoring unit.

FIG. 2 is a side view of the beam formwork shoring unit.

FIG. 3 is a front view of the large pull material.

FIG. 4 is a bottom view of the large pull material.

FIG. 5 is a side view of the large pull material.

FIG. 6 is a side view of the beam bottom formwork fixing member attached to the main lumber.

FIG. 7 is a sectional view taken along VII-VII in FIG. 6;

FIG. 8 is a side view of the beam side formwork support member.

FIG. 9 is a front view of the beam side formwork support member.

FIG. 10 is a plan view of a beam side formwork support member.

FIG. 11 is a side view of the rotating means.

FIG. 12 is a sectional view taken along the line XII-XII in FIG. 11;

FIG. 13 is a side view of a portion where a long shaft bolt is attached.

FIG. 14 is a side view of the shoring joint.

FIG. 15 is a plan view of the shoring joint.

FIG. 16 is a front view of the shoring joint.

FIG. 17 is a plan view of the receiving plate connection plate.

FIG. 18 is a side view of the receiving plate connection plate.

FIG. 19 is a front view when assembled.

FIG. 20 is a side view during assembly.

[Explanation of symbols]

A-beam formwork shoring unit B Beam formwork C load support member D beam side formwork support member E Rotating means 2 Beam side formwork 3 Beam bottom formwork 6 Corner parts 7 Large pull material 8 Channel steel 11 Vertical thick timber 12 Arm member 13 Diagonal material 14 Bolt nut 15 Support bolt 18 Long shaft bolt 20 Rotating bolt 24 Shoring 25 Shoring joint part 26　Batch plate connection plate 28 Rotating pin 124 Pipe support 124b Upper receiving plate

Claims (3)

[Claims] Claim 1: A beam formwork that rotatably joins a beam side formwork of a predetermined length and a beam bottom formwork of a predetermined length that matches the beam side formwork, and Large tension members are arranged at predetermined intervals in the transverse direction of the beam formwork and support the beam bottom formwork, and are joined to the large tension members to support the beam side formwork and are centered around the joint portion. In a beam formwork shoring unit comprising a beam side formwork support member for rotating the beam side formwork, and an expandable shoring member rotatably coupled to the large tension member and supporting the large extension member. , the beam side formwork support member includes a vertical end member rotatably attached around a pin member through which the large tension member is inserted, and a height at which the pin member is inserted from the vertical end member. A cross-piece member protruding parallel to the cross-section member, a diagonal member having both ends fixed to the tip of the cross-section member and the upper part of the vertical thick member, and a distal end of the cross-section member attached to the cross-section member. A beam characterized in that it has a rotating means that engages with the arm member to support the arm arm member, and rotates the arm arm member, the diagonal member, and the vertical end member together about the pin member. Formwork shoring unit. 2. The beam side formwork support member is disposed at a lower part of the arm member, and engages with the lower end of the vertical end member to connect the vertical end member, the arm member, and the diagonal member. 2. The beam form shoring unit according to claim 1, further comprising a second rotation means for integrally rotating the beam form supporting unit around the pin member. 3. The shoring includes an extendable support having an upper support plate, a support plate connecting plate fixed to the upper support plate, and a support plate connecting plate fixed to the upper support plate.
A shaft guide member fixed to the end of the receiving plate connection plate, a shaft member loosely fitted into the shaft guide member, and a shaft member fixed to the large tension member while locking the shaft member to connect the support plate to the receiving plate. 3. The beam form shoring unit according to claim 1, further comprising a shaft locking member that allows the plate and the shaft guide member to integrally rotate around the shaft member.