JP7168429B2 - floor formwork - Google Patents

Description

The present invention relates to floor form members.

BACKGROUND ART There is known a floor form member that functions as a concrete leak stop plate that prevents outflow of concrete that is poured after a deck plate, which is a floor component member, is laid on a floor surface to be constructed by placing both ends on beams. The concrete leak prevention plate has a mounting portion that is placed on a beam, and an upright portion that rises vertically from one end of the mounting portion to prevent leakage of concrete (see, for example, Patent Document 1).

In addition, the beam span in the width direction of the deck plate on the floor to be constructed is not necessarily an integral multiple of the width of the deck plate. Therefore, there is a gap between one widthwise end of the laid deck plate and the beam. In order to close this gap, there is a known technique of cutting the deck plate and laying down a narrower width dimension, or laying a plate material when there is a small gap (see, for example, Patent Document 2). ).

Utility Model Registration No. 3216563 Japanese Utility Model Laid-Open No. 7-279291

By the way, even when the same floor surface is constructed, the concrete leak prevention plate, the deck plate, the accessory and the adjustment plate are usually made separately, and the work process for installing them on the beam is usually carried out separately. , there is room for improving workability during floor construction.

Also, accessories are manufactured by cutting a part of a deck plate as a finished product. Some of the cut deck plates have to be discarded, resulting in a very low deck plate yield. Therefore, there has been a demand to reduce wasteful costs in deck plate manufacturing.

Therefore, the present invention has been made in view of the above problems, and has a function of preventing concrete from leaking out when concrete is placed, a function of covering the gap between the beam and the floor component, and a strength. An object of the present invention is to provide a floor form member with improved rigidity.

In order to solve the above problems, a floor form member according to the present invention is fixed along the extension direction of a beam, and has a prevention portion for preventing leakage of concrete to be poured, and a side along the extension direction of the beam. It is characterized by comprising a cover part that covers a gap formed between the edge and the side edge of the floor component positioned on the side of the beam.

The prevention portion includes a fixed portion fixed to the beam, a standing portion erected from one end portion of the fixed portion on the side opposite to the cover portion along the extending direction of the beam, and the one end and a projecting portion that is integrally formed at the other end of the fixed portion on the opposite side of the fixed portion and bridges over the floor component member.

Further, the prevention portion has a fixed portion fixed to the beam, and a standing portion erected from one end portion of the fixed portion on the side opposite to the cover portion along the extending direction of the beam. Further, the cover portion may have an adjusting mechanism for adjusting the width of the cover portion.

Further, the adjusting mechanism includes a projecting portion integrally formed at the other end portion of the fixing portion opposite to the one end portion and projecting toward the floor constituting member, and the projecting portion and the floor constituting member. You may have a bridging part that spans between.

In addition, the projecting portion has a first folded portion folded back toward the fixing portion at an end on the projecting side, and the bridging portion has an end on the projecting portion opposite to the projecting portion. The first folded portion contacts the bridging portion on the side of the floor component with respect to the second folded portion, and the second folded portion is: The fixed portion may be in contact with the projecting portion with respect to the first folded portion.

In addition, the fixing portion has a first convex portion partially extending between the standing portion and the protruding portion and protruding on a side opposite to the side facing the beam. The portion may have a second protrusion partly extending in the rising direction and protruding toward the fixing portion and connected to the first protrusion.

According to the present invention, it is possible to simultaneously carry out the work of stopping leakage of concrete when placing a concrete floor and the work of filling the gap between the beam and the floor constituent member, thereby improving workability and reducing work cost. be able to.

FIG. 4 is a schematic perspective view showing a state in which a deck plate and a floor form member according to the present embodiment are laid on beams; It is the figure which made the cross section of the floor formwork material crossing the extending direction of the deck plate. FIG. 4 is a perspective view for explaining the configuration of a concrete stopper; FIG. 4 is a perspective view for explaining the configuration of an adjustment plate; It is a schematic diagram showing a conventional floor surface construction technology. FIG. 3 shows a floor formwork with ties; FIG. 4 is a partially enlarged perspective view of one end of a connecting member of the floor form member. It is the partial expansion perspective view which expanded the other end part of the connection material of the floor formwork material.

Preferred embodiments of the present invention will be described with reference to the drawings. It should be noted that the embodiment shown below is merely an example, and can take various forms within the scope of the present invention.

FIG. 1 is a schematic perspective view showing a state in which a deck plate 300 and a floor form member 1 according to the present embodiment are laid on a beam 200, and is a cross section taken in a direction intersecting the extending direction of the deck plate 300. show. The floor form member 1 according to the present embodiment is used when constructing the floor surface of a building structure. The building frame has a plurality of columns 100 and a plurality of beams 200 . Each pillar 100 is erected on a foundation. The pillar 100 is formed of, for example, a hollow square pillar made of steel. Each beam 200 spans the pillar 100 in a direction orthogonal to the pillar 100, that is, in a direction parallel to the foundation. The beam 200 is made of, for example, steel H-section steel. The beam 200 is arranged so that the plane of the flange 210 is parallel to the foundation and connected to the column 100 . A deck plate (floor component) 300 is bridged between the facing beams 200 .

The direction in which the pillars 100 extend is referred to as the "height direction H", the direction in which the deck plates 300 extend is referred to as the "longitudinal direction L", and the direction in which the deck plates 300 are laid out is referred to as the "width direction W". Also, the beam extending along the longitudinal direction L is referred to as "beam 200L", and the beam extending along width direction W is referred to as "beam 200W".

The deck plate 300 is made of a thin steel plate that is rectangular in plan view. The deck plate 300 has two main surfaces 310,320. The main surface 310 is the surface on which concrete is cast, and the main surface 320 is the back surface facing the side opposite to the side facing the main surface 310 . Deck plate 300 has a plurality of ribs 330 . Each rib 330 is provided parallel to each other with a predetermined interval in the width direction W, and extends continuously in the longitudinal direction L. As shown in FIG. The rib 330 is provided on the surface facing the upper surface of the flange 210 when the deck plate 300 is placed on the upper surface of the beam 200W, that is, on the principal surface 320 side.

Each rib 330 is formed by bending a single steel plate that forms the deck plate 300 at a plurality of points. Both ends of the rib 330 in the longitudinal direction L are crushed in the height direction H and formed so as to be placed on the upper surface of the flange 210 of the beam 200W.

When the deck plate 300 is laid in the width direction W between the beams 200W, a gap S (see FIG. 2) may occur between one beam 200L and the deck plate 300 in the width direction W. The floor form member 1 according to the present embodiment is installed in the gap S created between the beam 200L and the deck plate 300 at the floor surface construction site. The floor formwork member 1 has a concrete stop member (prevention portion) 10 and an adjustment plate 20 . The floor form member 1 is provided along a beam 200L extending in the longitudinal direction L.

2 is a cross-sectional view of the floor form member 1 crossing the extending direction of the deck plate 300, FIG. 3 is a perspective view for explaining the configuration of the concrete stopper 10, and FIG. 4 is a perspective view for explaining the configuration of the adjusting plate 20. FIG. The concrete stop member 10 is fixed along the extending direction of the beam 200L, and prevents leakage in the width direction W of the placed concrete. The concrete stop member 10 is provided on the side where the gap S is generated between the deck plate 300 and the beam 200L.

The concrete retaining member 10 is formed in a substantially L shape in cross section. The concrete stop member 10 is formed of a steel plate. In the concrete stopper 10, the surface on which concrete is cast is defined as the front surface 10a, and the surface facing the opposite side of the front surface 10a is defined as the back surface 10b. Concrete stopper 10 has fixed portion 11 , projecting portion 12 , and standing portion 13 . The fixed portion 11, the projecting portion 12, and the standing portion 13 are integrally formed with each other.

The fixed part 11 is placed on the upper surface of the flange 210 of the beam 200L, extending between the columns 100 in the longitudinal direction L and across the width direction W of the flange 210 on the back surface 10b side. The fixed part 11 is fixed by welding to the flange 210 of the beam 200L. The fixed portion 11 is welded to the flange 210 of the beam 200L at two locations in the width direction W and at a plurality of locations in the longitudinal direction L. Two welding points 11c in the width direction W are spaced apart from each other by a predetermined distance. Each welding point 11c is provided near each end of the flange 210 in the width direction W. As shown in FIG.

The projecting portion 12 is an extension portion of the fixing portion 11 projecting in the width direction W from the flange 210 of the beam 200L. The projecting portion 12 is formed integrally with one side edge portion of the fixing portion 11 extending along the extending direction (longitudinal direction L) on the beam 200L with respect to the fixing portion 11 . Note that there is no clear structural distinction between the fixed portion 11 and the projecting portion 12, and they are distinguished according to their respective functions. Here, the portion of the beam 200L resting on the flange 210 (the portion provided for fixation by welding) is defined as the fixed portion 11, and the portion protruding from the flange 210 is defined as the projecting portion 12. FIG.

The projecting portion 12 extends substantially horizontally from the fixed portion 11 toward the adjusting plate 20 . The amount of protrusion 12 from flange 210 is such that it does not reach deck plate 300 in the present embodiment. The projecting portion 12 has a folded portion 14 at the tip portion on the side opposite to the fixing portion 11 . The folded portion 14 has an upright portion 15 and a folded portion 16 .

The standing portion 15 is erected by bending the tip portion of the projecting portion 12 substantially perpendicularly (in the vertical direction) to the side facing the surface 10a of the fixed portion 11 . The return portion 16 is bent substantially vertically toward the fixed portion 11 and extends at the tip portion of the upright portion 15 on the side opposite to the projecting portion 12 . In this state, the return portion 16 is in surface contact with the later-described adjustment plate 20 on the rear surface 10b.

The erected portion 13 is erected from the other side edge portion of the fixed portion 11 along the extending direction of the beam 200L to prevent concrete from leaking out in the width direction W. As shown in FIG. The standing portion 13 extends (stands) toward the side of the fixing portion 11 facing the surface 10a. Concrete leakage in the longitudinal direction L and concrete leakage in the width direction W at the beam 200L where the deck plate 300 starts to be laid are prevented by another concrete stopping member (not shown).

Concrete stopper 10 further has projections 17 . The convex portion 17 is formed over the fixing portion 11 and the standing portion 13 . The convex portion 17 has a first convex portion 11 d formed on the fixed portion 11 and a second convex portion 13 a formed on the standing portion 13 .

The first convex portion 11d is a portion formed by embossing to project from the back surface 10b side toward the front surface 10a in the fixed portion 11 . The first convex portion 11d extends in the width direction W from the side edge portion of the fixed portion 11 where the standing portion 13 is provided toward the projecting portion 12 . The second convex portion 13a is formed by embossing so as to protrude from the rear surface 10b side toward the front surface 10a in the standing portion 13 . The second protrusion 13a extends in the height direction H from the end of the standing portion 13 on the fixing portion 11 side toward the end on the opposite side. The first convex portion 11d and the second convex portion 13a are connected to each other at the transition portion between the fixed portion 11 and the standing portion 13. As shown in FIG.

The adjusting plate 20 is made of a steel plate. The adjustment plate 20 spans the concrete stopper 10 and the deck plate 300 in the width direction W, and closes the gap S between the concrete stopper 10 and the deck plate 300 . Note that the "gap S" means that the portion of the deck plate 300 on the side of the floor form member 1 from the rib 330 is designed to be a portion that cannot receive a load, so a plurality of gaps from the side edge of the beam 200L up to the center of the rib 330 located closest to the beam 200L among the ribs 330. Also, the “gap S” may mean only the actual gap between the concrete stopper 10 and the deck plate 300 .
The adjustment plate 20 is placed on beams 200W at respective ends in the longitudinal direction L. As shown in FIG. The adjusting plate 20 has a locking portion 21 and a bridging portion 22 . The locking portion 21 and the bridging portion 22 are integrally formed with each other.

The locking portion 21 of the adjusting plate 20 is provided at the end portion of the side on which the deck plate 300 is placed in the width direction W. As shown in FIG. The locking portion 21 is formed by bending the end portion toward the back surface 20b opposite to the surface 20a of the adjustment plate 20 on which concrete is placed. The locking portion 21 is inserted between the contact portions 340 where the steel plates of the deck plate 300 are in contact with each other in the ribs 330 of the deck plate 300 .
Note that the adjusting plate 20 may not have the engaging portion 21 and may simply overlap the deck plate 300 with the end on the deck plate 300 side.

The bridging portion 22 has a first surface portion 23 , a second surface portion 24 , a direction changing portion 25 and a folded portion 26 . In the present embodiment, the first surface portion 23 is shorter in the width direction W than the second surface portion 24 . Note that the first surface portion 23 may be formed longer than the second surface portion 24 in the width direction W, and the dimensions in the width direction W of the first surface portion 23 and the second surface portion 24 are the same. good too. A first surface portion 23 of the bridging portion 22 extends from the locking portion 21 in the width direction W toward the concrete stopper 10 . The first surface portion 23 is placed on the main surface 310 of the deck plate 300 on the back surface 20b.

The direction changing portion 25 is provided at an end portion of the first surface portion 23 opposite to the locking portion 21 in the width direction W. As shown in FIG. The direction-changing portion 25 extends to the side facing the surface 20 a in the height direction H, that is, to the side opposite to the locking portion 21 . In the width direction W, the turning portion 25 is positioned between the deck plate 300 and the folded portion 14 of the concrete stopper 10 . The amount of extension of the direction-changing portion 25 is determined based on the amount of erection of the erecting portion 15 of the folded portion 14 of the concrete stopper 10 .

The second surface portion 24 extends from the end of the direction-changing portion 25 opposite to the first surface portion 23 toward the concrete stopper 10 , that is, toward the side opposite to the locking portion 21 and the first surface portion 23 . ing. The second surface portion 24 extends beyond the folded portion 14 of the concrete stopper 10 toward the projecting portion 12 side.

The folded portion 26 is provided at the end portion of the second surface portion 24 opposite to the locking portion 21 in the width direction W. As shown in FIG. The folded portion 26 has an upright portion 27 and a folded portion 28 . The upright portion 27 is bent substantially perpendicularly (in the vertical direction) to the rear surface 20 b side of the adjusting plate 20 at the end of the second surface portion 24 . The return portion 28 extends by being bent toward the first surface portion 23 and the direction changing portion 25 at the end portion of the upright portion 27 opposite to the second surface portion 24 . The return portion 28 is in surface contact with the concrete stopper 10 on the surface 20a of the adjusting plate 20. As shown in FIG.

Next, a process for installing the floor form member 1 will be described. When the deck plates 300 are laid in the width direction W of the floor surface to be constructed, there is a gap smaller than the dimension in the width direction W of one deck plate 300 between the beam 200L and the side edge of the deck plate 300. S may occur.

FIG. 5 is a schematic diagram showing a conventional floor construction technique. In the prior art, in order to close the gap S, the accessory 500 and the flat plate 600, which are obtained by cutting the deck plate 300 into a certain width, are used. The accessory 500 is bridged between the beams 200W, welded to the beams 200W at both ends along the width direction W, and welded to the deck plate 300 at one end along the longitudinal direction L. The flat plate 600 was bridged between the other end of the accessory 500 in the longitudinal direction L and the beam 200L and welded to each (the welded portion is indicated by a dashed line). Since the deck plate 300 and the accessory 500 are provided with the ribs 330, the gap S cannot be closed by the deck plate 300 and the accessory 500 alone, and there is always a gap to be closed by spanning the flat plate 600. rice field.

In the past, apart from the work of closing the gap S, it was necessary to install the concrete stopper 400 on the beam 200L in order to prevent the concrete to be poured from leaking. The concrete stopper 400 was welded to the beam 200L at the fixed portion 410 shorter than the flange 210 in the width direction W. In addition, in order to strengthen the connection between the concrete stopper 400 and the beam 200L, the upright portion 420 of the concrete stopper 400 and the flange 210 are welded and connected with a reinforcing bar 430 having a substantially Z shape when viewed from the front. .

On the other hand, the floor form member 1 described above has both a function of preventing leakage of concrete and a function of closing the gap S. First, the concrete retaining member 10 is installed on the beam 200L. The concrete stoppers 10 are welded to the flanges 210 of the beam 200L in two rows along the longitudinal direction L and near the ends of the flanges 210 in the width direction W at the fixing portion 11 .

Next, the adjustment plate 20 is bridged between the concrete stop member 10 and the deck plate 300 . While inserting the locking portion 21 of the adjusting plate 20 into the contact portion 340 of the deck plate 300 , the folded portion 26 of the adjusting plate 20 is placed on the flat portion of the projecting portion 12 of the concrete stopper 10 . The return portion 28 of the adjustment plate 20 is in surface contact with the surface 10a of the concrete stopper 10 at the projecting portion 12 . Further, the return portion 16 of the concrete stopper 10 is in surface contact with the second surface portion 24 of the adjusting plate 20 from the rear surface 20b side.

According to the floor form member 1 as described above, it is possible to block the gap S and at the same time prevent leakage of concrete from the beam 200L. In other words, the work of closing the gap S and the work of preventing concrete from leaking at least along the longitudinal direction L of the beam 200L can be performed simultaneously with the floor form member 1 . The floor formwork material 1 eliminates the need for the accessory 500 processed from the deck plate 300 that is required in the prior art, greatly improves the yield of the deck plate 300, and can reduce wasteful costs.

In the floor form member 1 according to the present embodiment, the gap S formed between the side edge along the extending direction of the beam 200L and the side edge of the deck plate 300 located on the side of the beam 200L is covered. The cover portion has a projecting portion 12 of the concrete stop member 10 as the cover portion and a bridging portion 22 of the adjustment plate 20 as the cover portion. The projecting portion 12 and the bridging portion 22 have overlapping regions O that overlap each other in the width direction W. As shown in FIG. The overlapping region O is formed by overlapping the projecting portion 12 of the concrete stopper 10 and the second surface portion 24 of the adjustment plate 20 . In the floor form member 1, the overlapping region O of the protruding portion 12 and the bridge portion 22 is positioned in the gap S. Due to the overlapping region O, the projecting portion 12 of the concrete stopper 10 and the bridging portion 22 of the adjusting plate 20 function as an adjusting mechanism for adjusting the width in the width direction W of the cover portion. If the gap S is small, the overlapping area O will be large, and if the gap S is large, the overlapping area O will be small. The dimension of the gap S in the width direction W differs depending on the floor construction site. According to the floor formwork member 1 that secures the overlapping region O, it is possible to flexibly cope with the gap S that varies depending on the floor surface construction site.

Moreover, the folded portion 14 contacts the second surface portion 24 of the bridge portion 22 , and the folded portion 26 contacts the projecting portion 12 . More specifically, the concrete stopper 10 is in surface contact with the back surface 20b of the second surface portion 24 in the bridging portion 22 of the adjusting plate 20 at the folded portion 16 of the folded portion 14, and the adjusting plate 20 is in contact with the folded portion 26. The return portion 28 is in surface contact with the surface 10a of the projecting portion 12 of the concrete stopper 10 . Therefore, it is possible to effectively prevent the concrete from leaking out from between the concrete stop member 10 and the adjustment plate 20 when placing concrete.

In addition, since the floor formwork member 1 has the projecting portion 12 projecting in the width direction W from the beam 200L, the welded portion 11c of the fixing portion 11 in the width direction W extends across the width of the beam 200L in the width direction W. You can make the most of it and set it up. That is, it is possible to ensure a larger interval between the fulcrums of the concrete stopper 10 with respect to the beam 200L than in the prior art, and the stable installation state of the concrete stopper 10 on the beam 200L can be obtained. As a result, it is possible to omit the reinforcing bar 430 that has conventionally connected the concrete stopper 400 and the beam 200L. The number of locations requiring welding work when installing the floor form member 1 can be greatly reduced compared to the conventional technology, and the construction period at the floor surface construction site can be shortened.

Moreover, since the folded portion 14 of the concrete stopper 10 and the folded portion 26 of the adjustment plate 20 are positioned above the gap S, the cross-sectional area of the floor form member 1 can be increased in the gap S. Furthermore, the vertically extending standing portions 15 and 27 of the folded portions 14 and 26 are strong against the load applied from the vertical direction, and the floor form member 1 can support the load in the gap S. In the floor form member 1, since the strength against the load is improved in the concrete fixing member 10 and the adjustment plate 20, the safety of the concrete placing work is improved.

Further, since the concrete stopper 10 is formed with the convex portion 17 that is continuous with the fixed portion 11 and the erected portion 13, the rigidity of the concrete stopper 10 is increased, and the erected portion 13 falls outward when concrete is placed. can be prevented.

The locking portion 21 allows the adjustment plate 20 to be adjusted by simply inserting the locking portion 21 into the contact portion 340 of the deck plate 300 and placing the bridge portion 22 on the projecting portion 12 of the concrete stopper 10 . Welding work can be omitted.

In the floor form member 1, the adjustment plate 20 does not close the gap S over the entire width of the bridge portion 22, but only closes the gap S between the projecting portion 12 of the concrete stopper member 10 and the deck plate 300. OK. As a result, compared to the case where the adjusting plate 20 closes the gap S over the entire width, the interval between the fulcrums (the fulcrum on the deck plate 300 and the fulcrum on the concrete stopper 10) in the width direction of the adjusting plate 20 can be shortened. .

<Others>
Although preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and includes all aspects included in the concept of the present invention and the scope of claims. Moreover, each configuration may be selectively combined as appropriate so as to achieve at least part of the above-described problems and effects. Further, for example, the shape, material, arrangement, size, etc. of each component in the above embodiment may be appropriately changed according to the specific usage of the present invention. In the floor formwork member 1 in the above embodiment, the cover portion is formed by the concrete stopper member 10 and the adjustment plate 20. However, if the protrusion 12 of the concrete stopper member 10 reaches the deck plate 300, The adjusting plate 20 may not be provided. In other words, the cover portion may block the gap S only with the concrete stopping material 10 .

Further, in the above embodiment, the adjusting plate 20 is placed on the concrete fixing member 10 in the height direction H, but the concrete fixing member 10 may be placed on the adjusting plate 20 . In this case, the folded portion 14 of the concrete stopper 10 is folded toward the back surface 10b, the direction changing portion 25 of the adjustment plate 20 is folded toward the back surface 20b, and the folded portion 26 of the adjustment plate 20 is folded toward the front surface. It is bent to the side of 20a.

Moreover, in the above-described embodiment, the projections 17 extend continuously as ridges, but they may be formed by simply scattering projections.

Further, the floor formwork member 1 may include a plurality of connecting members 30 that connect the concrete retaining member 10 and the adjustment plate 20 . 6 is a diagram showing the floor form member 1 provided with the connecting member 30, FIG. 7 is a partially enlarged perspective view of the floor form member 1 as seen from one end of the connecting member 30, and FIG. 4] is a partially enlarged perspective view of the other end of the connecting member 30 of the floor form member 1. [FIG. The connecting members (connecting bars) 30 are made of reinforcing bars. Each connecting member 30 is provided obliquely from the concrete stop member 10 toward the adjustment plate 20 at a predetermined interval along the longitudinal direction L. As shown in FIG.

A thread 31 is formed at one end of the connecting member 30, and a nut 31N is attached to this thread. The connecting member 30 has a bent end portion 32 in which the other end is bent toward one end. In the case of the floor form member 1 provided with the connecting member 30 , a plurality of cuts 131 are formed in the standing portion 13 of the concrete stopper member 10 . One end of the connecting member 30 is dropped into the notch 131 .

The cuts 131 are formed at predetermined intervals in the longitudinal direction L. As shown in FIG. The notch 131 is formed from the end of the standing portion 13 on the side opposite to the fixing portion 11 toward the fixing portion 11 side. The length of the cut 131 along the height direction H is designed so that the connecting member 30 can be fully inserted (dropped), and the width of the cut 131 intersecting the height direction H is the diameter of the nut 30N. Designed to be smaller.

Furthermore, a plurality of holes 251 are formed in the direction changing portion 25 of the adjustment plate 20 . The tip of the bent end portion 32 of the connecting member 30 is inserted through the hole portion 251 . Although the bent end portion 32 is bent toward the nut 31N, the bent end portion 32 may be bent at a predetermined angle and hooked to the direction changing portion 25 .

By providing the connecting member 30, when the concrete is placed, the weight of the concrete causes the connecting member 30 to pull the upright portion 13 toward the adjustment plate 20 on one end side (the side of the thread 31). At the same time, the adjustment plate 20 is pulled obliquely upward toward the concrete stopper 10 on the side of the other end (bent end 32) to prevent the adjustment plate 20 from falling. As a result, the strength of the entire floor form member 1 can be expected to be improved, and the material thickness of the concrete fixing member 10 and the adjustment plate 20 can be reduced, thereby achieving cost reduction.

1 floor formwork material 10 concrete stopping material (prevention part)
11 Fixed Part 12 Protruding Part 13 Standing Part 14 Folded Part (First Folded Part)
17 convex portion 20 adjustment plate 21 locking portion 22 bridging portion 23 first surface portion 24 second surface portion 26 folded portion (second folded portion)
200 Beam 300 Deck plate (floor component)
S Gap

Claims (5)

a prevention part that is fixed along the extension direction of the beam and prevents leakage of concrete to be placed;
a cover portion covering a gap formed between a side edge along the extending direction of the beam and a side edge of a floor component positioned on the side of the beam;
with
The prevention unit is
a fixing portion fixed to the beam;
an erecting portion erected from one end portion of the fixed portion on the side opposite to the cover portion along the extending direction of the beam;
a protruding portion formed integrally with the other end portion of the fixed portion opposite to the one end portion and bridged over the floor constituent member;
A floor form member characterized by comprising: a prevention part that is fixed along the extension direction of the beam and prevents leakage of concrete to be placed;
a cover portion covering a gap formed between a side edge along the extending direction of the beam and a side edge of a floor component positioned on the side of the beam;
with
The prevention unit is
a fixing part fixed to the beam;
an erecting portion erected from one end portion of the fixed portion on the side opposite to the cover portion along the extending direction of the beam;
has
The floor form member, wherein the cover portion has an adjusting mechanism for adjusting the width of the cover portion. The adjustment mechanism is
a protruding portion integrally formed at the other end of the fixing portion opposite to the one end and protruding toward the floor component;
a bridging portion bridging between the projecting portion and the floor constituent member;
The floor formwork according to claim 2 , characterized in that it has The protruding portion has a first folded portion folded back toward the fixing portion at an end on the protruding side,
The bridging portion has a second folded portion folded back to the side opposite to the protruding portion at the end on the side of the protruding portion,
the first folded portion contacts the bridging portion on the side of the floor component with respect to the second folded portion;
The floor form member according to claim 3 , wherein the second folded portion is in contact with the projecting portion on the side of the fixed portion with respect to the first folded portion. The fixed portion has a first convex portion partially extending between the standing portion and the protruding portion and protruding on the side opposite to the side facing the beam,
5. The method according to claim 4 , wherein the standing portion has a second protrusion that partially extends in the rising direction and protrudes toward the fixing portion and is connected to the first protrusion. Floor formwork as described.

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