KR102202675B1 - Steel form for beam construction - Google Patents

Abstract

The present invention relates to a beam-integrated type non-welding steel plate mold which does not dismantle steel plates for a mold in concrete, wherein a corrugated part cutting and molding the steel plates and an embossing part press-molding the steel plates are formed on left and right side wall parts and a floor part made of the steel plates, thereby increasing stiffness of the steel plate mold. Moreover, the beam-integrated type non-welding steel plate mold bonds the side wall parts, the floor part, vertical reinforcement bars, and horizontal reinforcement bars in a non-welding manner by using a clinching method while reinforcing bars for construction are inserted and coupled into penetrating holes of the vertical reinforcement bars and the horizontal reinforcement bars in the non-welding manner, thereby preventing thermal deformation or component changes caused by welding so that structural safety and reliability can be increased.

Description

Beam integral type non-welded steel plate form {STEEL FORM FOR BEAM CONSTRUCTION}

The present invention is a beam-integrated non-welded steel sheet formwork that does not dismantle a steel sheet for formwork from concrete, in which a corrugated part formed by bending a steel sheet and an embossed part formed by press forming a steel sheet are formed on the left and right side walls and the bottom of the steel sheet. To increase the rigidity, the reinforcing bars for construction are inserted into the through-holes of the vertical and horizontal reinforcing bars without welding, and the side wall and the bottom, and the vertical and horizontal reinforcing bars are joined by no welding using the clinching method. It relates to a beam-integrated non-welded steel sheet formwork that can increase structural safety and reliability by preventing thermal deformation or component change caused by.

Formwork is a structure temporarily installed in order to make concrete that has fluidity in a predetermined shape and dimension in reinforced concrete structure construction.

The formwork is necessary for a short period of time until the concrete is cured to some extent, and it is a temporary material that is removed and removed after the curing of the concrete has progressed.The installation and dismantling of the formwork is a very large part of the cost and time used for the entire concrete construction. It is a cumbersome process to take up.

Particularly, since the formwork material has a high rigidity and is inexpensive, the load of the formwork itself is significant, and the work of assembling and disassembling heavy materials from a high place is accompanied by a risk.

In particular, in the case of beam construction, it is a problem to safety when installing and removing the formwork in the process of installing the beam formwork and pouring concrete, and because the structural rigidity is weak, various yokes or joists must be added to the outer surface of the beam formwork. Therefore, there is a problem that the demoulding operation after curing is very cumbersome, takes a long time, and increases the cost burden.

As a prior art for solving such a problem, there is a registered patent No. 10-1009753 "beam structure formwork",

The prior art is a rectangular lower plate forming a pouring space for a beam, the first and second side plates, and the first and second side plates are bent and formed to protrude from the inner side, and are formed in the longitudinal direction and are arranged at a predetermined distance up and down. It includes first and second beads, and side plate support members coupled to the first and second beads.

However, the prior art has a limit in increasing the rigidity of the first and second side plates as a'-'-shaped structure in which the ends of the first and second beads are bent in a'b' shape, so the side pressure generated during curing In addition to weakening structural safety, there is a problem that a cavity is generated inside because the concrete is not completely filled inside the'b' shape in the structure.

In addition, the prior art is combined based on welding, and there is a problem in reliability such as heat generated during welding peels off a film such as zinc plating of the steel sheet, causes a change in properties of the stirrup, and causes structural deformation.

Furthermore, since the thickness of the steel plate that forms the upper and lower corners of the formwork is thin, the shape of the corners is deformed as the load is concentrated on the corners when pouring concrete, and in the case of the lower corners, marks are created or deformed due to the installation of yoke materials and supporters. There is a problem.

Accordingly, the present invention was devised to solve the above problems,

It is possible to strengthen the stiffness of the corners of beams where side pressure is concentrated while increasing the stiffness of the sidewall and bottom of the steel plate formwork, preventing the film from peeling off or causing changes in the composition of the stirrup as the steel plate is thermally deformed due to non-welding bonding. It is an object to provide a beam-integrated non-welded steel plate formwork.

In order to achieve the above object, the beam-integrated non-welded steel sheet formwork according to the present invention,

In the beam-integrated non-welded steel sheet formwork that does not dismantle the formwork steel sheet from concrete,

It forms a casting space for beam construction with an open top surface, and has a corrugated portion formed in the longitudinal direction of the beam while protruding from the surface of the steel plate by bending the steel plate, and an embossing portion formed by pressing a part of the steel plate to protrude from the surface of the steel plate. Beam formwork consisting of left and right sidewalls and bottom;

An internal reinforcing rod consisting of a vertical reinforcing rod and a horizontal reinforcing rod provided with through holes formed to protrude from each inner surface of the left and right side wall portions and the bottom portion and connected, and having through holes formed through both sides of the inner portion; And

Includes; Including; Including; the through hole, the internal reinforcement including the construction reinforcement connected in the longitudinal direction of the beam

The side wall portion, the bottom portion, the vertical reinforcement zone and the horizontal reinforcement zone are all joined to each other by a clinching method.

And in the beam-integrated non-welded steel sheet formwork according to the present invention,

The internal reinforcing bar is bent and molded in a'C' shape corresponding to the internal reinforcing bar to be connected to the construction reinforcing bar, the vertical part of the stirrup reinforcing bar or both vertical reinforcing bars through holes, or both left and right constructions It characterized in that it comprises a side pressure reinforcement connected to the dragon reinforcement.

In addition, the beam-integrated non-welded steel sheet formwork according to the present invention,

Further comprising; a wall formwork connected to the lower part of the bottom of the beam formwork to form a casting space for wall construction,

The wall formwork,

A pair of support plates that are joined to the beam formwork by a clinching method so as to be spaced apart by a predetermined distance from both sides of the bottom of the bottom along the longitudinal direction of the beam, and have a fitting portion formed by bending the inner end of the steel plate downward,

A floor reinforcing rod that is joined by a clinching method between each fitting portion of the support plate, and is erected and connected to protrude from the outer surface of the bottom portion,

It characterized in that it comprises a wall steel plate that is coupled to extend to the lower side of each of the fittings to form a casting space for the wall to the lower side of the floor reinforcement.

Further, the beam-integrated non-welded steel sheet formwork according to the present invention,

Insulating beams are formed, including an insulating material installed between the left and right sidewalls and the bottom, and an insulating material installed between the vertical and horizontal reinforcements,

The insulating material is characterized in that the vertical reinforcing rod and the horizontal reinforcing rod each of the clinching contact surface, the left and right sidewalls and the bottom portion of the steel plate is passed through and is coupled with a coupling bolt fixed with a nut.

The beam-integrated non-welded steel sheet formwork according to the present invention,

While increasing the rigidity of the steel plate form itself through the corrugated part protruding to the surface of the steel plate and the embossing part, the beam form, the inner reinforcing bar and the inner muscle are joined or bonded to each other without welding, resulting in thermal deformation or film peeling of the steel plate during welding. , It can prevent changes in the ingredients of stirrups,

The stirrup reinforcing bar and the lateral pressure reinforcing bar to be constructed by maintaining the bonding form of the beam formwork are easily and quickly combined without welding,

When constructing so that the beam is supported and connected to the wall, the beam form and the wall form are also non-welded by the clinching method, increasing structural stability between the beam and the wall, and reinforcing the lower part of the beam form.

When additional insulation is installed on the outer surface of the beam, it is possible to assemble and ship the insulation member at the factory without damaging the concrete, as well as safety accidents such as the fall of the insulation member by increasing the bonding strength of the insulation material by bolting the insulation material onto the clinching interface. Can be prevented in advance,

In the concrete steel plate composite-beam construction, it is possible to improve the convenience of construction while reducing the manufacturing cost by mass-producing the formwork product through factory assembly rather than on-site assembly.

1 is a first exploded perspective view of a composite-beam according to the present invention.
Figure 2 is a front view of the composite-beam according to the present invention.
Figure 3 is a cross-sectional view of the main portion showing several cross-sectional shapes of the corrugated portion according to the present invention.
4 is an enlarged cross-sectional view of a main part showing embodiments of a clinching contact surface according to the present invention.
Figure 5 is a partial cross-sectional view showing the embodiments of the vertical reinforcement according to the present invention in plan.
Figure 6a, 6b is a perspective view and a cross-sectional view for explaining the insulating beam according to the present invention.
Figure 7 is a cross-sectional view for explaining the insulating beam according to the present invention.
Figure 8 is a perspective view of the main part showing an embodiment in which the present invention is connected to the girder.
9 is a cross-sectional perspective view for explaining the clinching method of the present invention.

The present invention will be described in detail in the text of the bar, implementation (態樣, aspect) (or embodiment) that can apply various changes and can have various forms. However, this is not intended to limit the present invention to a specific form of disclosure, and it should be understood that all changes, equivalents, and substitutes included in the spirit and scope of the present invention are included.

In each drawing, the same reference numerals, in particular the number of tens and ones, or the same number of tens, ones, and alphabet indicate members having the same or similar functions, and unless otherwise specified, each of the drawings The member indicated by the reference number can be identified as a member conforming to these criteria.

In addition, the components in each drawing are expressed by exaggeratingly large (or thick) or small (or thin) or simplified the size or thickness in consideration of the convenience of understanding, but this limits the scope of protection of the present invention. It shouldn't be.

The terms used in the present specification are only used to describe specific embodiments (sun, 態樣, aspect) (or examples), and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In the present application, terms such as ~include~ or ~consist are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance the possibility of being added.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. Terms as defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and should not be interpreted as an ideal or excessively formal meaning unless explicitly defined in this application. Does not.

The ~1~, ~2~, etc. described in the present specification will only be referred to to distinguish different constituent elements, and are not limited to the order of manufacture, and the names in the detailed description and claims of the invention It may not match.

In describing the beam-integrated non-welded steel sheet formwork according to the present invention, for convenience, if a rough approximate direction standard is specified with reference to FIG. 1, the direction in which gravity acts as the lower side, and the vertical, left and right directions are determined as the visible direction, In the detailed description and claims related to the other drawings, unless otherwise specified, directions are specified and described in accordance with this standard.

Hereinafter, a beam-integrated non-welded steel sheet formwork according to the present invention will be described with reference to the accompanying drawings.

The present invention relates to a beam-integrated non-welded steel sheet formwork that does not dismantle the steel sheet for formwork from concrete. As shown in FIGS. 1 to 9, the concrete is largely composed of the left and right sidewalls 10 and the bottom 20 Beam formwork (F) that forms the outer wall of the beam while being poured, internal reinforcement (R) consisting of vertical reinforcement bars (30) and horizontal reinforcement bars (40) that reinforce the interior of the beam, and both side walls by side pressure while maintaining the shape of the beam Inner reinforcement (50) made of construction reinforcement (51), stirrup reinforcement (52), lateral pressure reinforcement (53) to prevent the part (10) from swelling or spreading, and insulation (61) added to the outer surface of the beam if necessary It includes an insulating beam 60 made of an insulating material 61 and an outer wall steel plate 62 used for construction, and a wall formwork used when a beam is constructed at the top of the wall.

The beam formwork (F) forms a casting space for beam construction with an open top surface, and the steel sheet is bent and protruded from the surface of the steel sheet, and the corrugations 11 and 21 formed in the longitudinal direction of the beam, and a part of the steel sheet are pressed. It consists of left and right side wall portions 10 and bottom portions 20 having embossed portions 12 and 22 formed protruding from the surface of the steel plate by molding.

The corrugated portions 11 and 21 are formed in the longitudinal direction by bending the steel plate, and two or more corrugated portions 11 and 21 are provided at predetermined intervals in the width direction of the steel plate.

At this time, it is preferable that the corrugated portions 11 and 21 protrude toward the outside of the beam, and the cross-sectional shape of the corrugated portions 11 and 21 may be formed into various shapes as shown in FIG. 3.

The embossing portions 12 and 22 are formed by pressing a steel plate, and a plurality of embossing portions 12 and 22 are provided between the corrugated portions 11 and 21 at a predetermined interval.

In addition, it is preferable that the embossing portions 12 and 22 protrude toward the inside of the beam, and are formed to be elongated in a vertical direction perpendicular to the corrugated portions 11 and 21 and arranged in the longitudinal direction of the beam. In this case, there is no limit to the shape of the wrinkles 11 and 21 (rectangular, oval, etc.).

The internal reinforcement (R) consists of a vertical reinforcement bar 30 and a horizontal reinforcement bar 40 that are erected and connected to protrude from each of the inner side surfaces of the left and right side wall portions 10 and the bottom portion 20.

The vertical reinforcing rod 30 and the horizontal reinforcing rod 40 have a length corresponding to the height (width width) of the side wall portion 10 and the bottom portion 20, and the side wall portion 10 and the bottom portion 20 It is installed to stand in a right angle direction.

At this time, the present invention is characterized in that the side wall portion 10, the bottom portion 20, the vertical reinforcement 30 and the horizontal reinforcement 40 are all joined to each other by a clinching method.

The clinching method is a method in which a plate-like material such as a steel plate is brought into close contact with each other, and then a clinching joint (C) as shown in FIG. 9 is formed using punching, etc., and the steel plates are partially joined to prevent separation.

Conventional composite-beam steel plate formwork As both the steel plate and the reinforcing bar are joined by welding, the steel plate is thermally deformed or the film is peeled off by the heat generated during welding, and deformation or strength decrease occurs due to the change in the composition of the stirrup.

In the present invention, it is possible to fundamentally block the occurrence of the above-described problems by combining (assembling) all parts including the internal muscle 50 to be described later by applying the clinching method instead of welding.

At this time, in order to bond all of the side wall portion 10 and the bottom portion 20, the vertical reinforcing rod 30 and the horizontal reinforcing rod 40 to each other by the clinching method, the steel plates must overlap each other by a certain area or more, so the side wall portion ( 10) and the bottom portion 20, the vertical reinforcement bar 30, and the horizontal reinforcement bar 40 each have a clinching contact surface bent at a right angle to the end to be joined.

This clinching contact surface may be molded in various embodiments,

For example, first, as shown in the enlarged cross-sectional view in the circle of FIG. 1, the left and right ends of the bottom 20 are bent at a right angle to form the clinching contact surface 23, and then the steel plate of the side wall 10 and the clinching The clinching method can be performed on the area where the contact surface 23 overlaps,

Alternatively, although not shown in the drawing, on the contrary, after forming a clinching contact surface by bending the lower end of the side wall portion 10 at a right angle, and then performing a clinching method by overlapping the steel plates of the bottom portion 20, or After bending the clinching contact surface on both the portion 10 and the bottom 20, a clinching method may be performed on the overlapped portions.

At this time, the side wall portion 10 and the bottom portion 20 are characterized in that each steel plate is bent and fitted to each other, and then joined by a clinching method.

In this exemplary embodiment, in the cross-sectional view of the circle of FIG. 2 and [A] of FIG. 4, the sidewall portion 10 and the steel plate of the bottom portion are bent so as to overlap in two or more stages, so that the fitting portion ( 13a) (23a) is formed and the fitting portions (13a) (23a) are shown in an embodiment in which the fitting portions (13a) (23a) are fitted and coupled in a form in which male and female are coupled to each other,

4C shows an embodiment in which the steel plate of the side wall part 10 is fitted and coupled to the fitting part 23a formed by bending the steel plate of the bottom part 20.

In addition, as shown in [B] of FIG. 4, a separate steel plate for clinching 25 separated from both of the side wall portion 10 and the bottom portion 20 is bent and overlapped vertically, and the steel plate for cleanchin 25 ) After the end of the steel plate of the side wall portion 10 and the bottom portion 20 is inserted into the fitting portion between the two, a clinching method may be performed on the overlapping portion of the steel plates, and at this time, the use of the steel plate 25 for clinching The bending structure for fitting and coupling of the side wall portion 10 and the bottom portion 20, such as may be applied as shown in Fig. 4 [A] and [C], may be modified in various forms.

In this way, if the part corresponding to the lower edge of the beam form (F) is overlapped in two or more layers using the bending structure of the steel plate, the stiffness of the part itself is further increased. Therefore, the beam form (F) is used as a yoke material and a supporter. ), it can prevent deformation or damage such as crushing of the corresponding part.

And, in the case of the vertical reinforcing rod 30, as shown in FIG. 5, after forming the clinching contact surface portion 31 by bending the right and left one or both ends of the vertical reinforcing rod 30 at a right angle, the steel plate of the side wall portion 10 The clinching method may be performed on the area where the and clinching contact surfaces 31 are overlapped, and in FIG. 5, it consists of a'c' shape, a'a' shape, and a similar'Z' shape vertical reinforcement (30). An exemplary embodiment in which the clinching contact surface portion 31 is formed is shown representatively.

In addition, although a specific embodiment is not shown in the drawings, the horizontal reinforcement bar 40 is also provided with a clinching contact surface portion 41 (refer to FIG. 1) in the same or similar form as that of the bending structure of the vertical reinforcement bar 30, 20) and the vertical reinforcing bar 30 are joined by a clinching method.

In FIG. 5, reference numeral 33, which is not described, is a locking portion bent at a right angle to the inner end of the vertical reinforcing rod 30, and is buried in the concrete in which the locking portion 33 is poured, and each reinforcing rod 30, 40 and side wall portion 10 ) And the floor part 20 are prevented from being separated and separated from the concrete, and the horizontal reinforcing rod 40 may also have a locking part of the above function.

Further, the side wall portion 10 further includes a support portion 14 for supporting the upper end of the vertical reinforcing bar 30 by bending the upper end of the steel plate in an inner right angle direction.

The support part 14 is for preventing the structure of the beam formwork F from being deformed (for example, the steel plate crushes or sinks) while supporting the load of the concrete during concrete pouring. In the drawing, a single support part is provided. (14) An example in which the steel plate of the side wall portion 10 is bent and molded is typically shown, but the steel plate is bent to be double-overlaid, or the two steel plates are bent to a clinching method on the steel plate of the side wall portion 10 By joining together, the rigidity of the support part 14 itself may be increased.

At this time, if the support part 14 is bent in a double or more overlapping structure, the steel plate becomes thick and the vertical stiffener 30 cannot be in close contact. Therefore, the cutting part 34 which cuts the upper part of the vertical stiffener 30 in a diagonal direction By forming, the support portion 14 and the vertical reinforcing rod 30 can be prevented from interfering with each other, and this cutting portion 34 functions as a flow path through which concrete passes, and the vertical reinforcing rod 30 and the side wall portion buried in the concrete (10) can be prevented from leaving.

In addition, a'L'-shaped reinforcing frame (not shown) connected in the longitudinal direction of the beam may be provided at the inner corners of the vertical reinforcing bar 30 and the horizontal reinforcing bar 40, and such a reinforcing frame is also the vertical reinforcing bar 30 ) Or by using the clinching contact surfaces 31 and 41 of the horizontal reinforcing bar 40, they are joined by a clinching method.

In addition, the internal root 50 penetrates the vertical reinforcement bar 30 and the horizontal reinforcement bar 40 in the longitudinal direction of the beam, and is more precisely inserted into the through-holes 32 and 42 to be connected in the longitudinal direction of the beam. The construction reinforcement (51), the stirrup reinforcement (52), the stirrup reinforcement (52), which is bent and molded into a'U' shape corresponding to the internal reinforcement (R) and connected to the construction reinforcement (51) Includes; internal bars 50 made of lateral pressure reinforcing bars 53 connected to both vertical portions 52a or the left and right side construction reinforcing bars 51 of the.

The construction reinforcing bar 51 is a straight-type general reinforcing bar, and is fitted and coupled to the through-holes 32 and 42 drilled in the inner side of the vertical reinforcing bar 30 and the horizontal reinforcing bar 40, and a plurality of reinforcing bars for construction ( 51) are arranged in a'C' shape along the longitudinal direction of the vertical reinforcement 30 and the horizontal reinforcement 40.

The stirrup reinforcing bar 52 is bent in a'C' shape corresponding to the vertical reinforcing bar 30 and the horizontal reinforcing bar 40, and is connected in contact with the inner surface of the construction reinforcing bar 51.

At this time, the stirrup reinforcing bar 52 has both vertical portions 52a formed longer than the height of the sidewall portion 10, and includes a first locking end 52b formed by bending an upper end portion at an acute angle.

The first locking end 52b is inserted into a floor formwork to be constructed of concrete after the beam is completed, and is buried in the concrete floor, thereby connecting the concrete floor and the composite beam to each other.

The lateral pressure reinforcing bar 53 is a through hole 32 of both vertical reinforcing bars 30 or both vertical portions 52a of the stirrup reinforcing bar 52 or both sides of the construction reinforcing bar 51 or both of them inward to place concrete It is to prevent the swelling or opening of the left and right side wall portions 10 by side pressure caused by,

Both ends are bent to form a'C' shape, and a second locking end 53a bent at an acute angle is provided at one end, and a support part 53b bent at a right angle is provided at the other end.

These lateral pressure reinforcing bars 53 connect the second locking ends 53a to the through-holes 32 of the vertical reinforcing bars 30 on one side, or the vertical portions 52a on both sides of the stirrup reinforcing bars 52, or reinforcing bars 51 for construction on both sides. ) First, and rotate the support part (53b) with the second locking end (53a) as the starting point, and the through hole 32 of the vertical reinforcement bar 30 on the other side or the vertical part 52a on both sides of the stirrup reinforcing bar 52 Or it is connected by walking to the reinforcing bars 51 for construction on both sides.

At this time, the conventional composite-beam is welded to each other by welding various reinforcing bars buried inside the steel plate formwork, but the present invention binds the reinforcing bars of the inner bar 50 with a binding string such as wire so that the reinforcing bars are connected to each other by no welding. .

For example, by inserting a binding string through the through holes 32 and 42 in which the reinforcing bars 51 for construction are inserted, wrap them in an'X' shape, and then tighten them,

The area where the construction reinforcing bar 51 and the stirrup reinforcing bar 52 intersect, the area where the construction reinforcing bar 51 and the lateral pressure reinforcing bar 53 intersect, the stirrup reinforcing bar 52 and the lateral pressure reinforcing bar 53 By wrapping the binding string around the area in an'X' shape and tightening it, each reinforcing bar can be connected to each other without welding.

Through this, in the present invention, the beam form (F) and the internal reinforcing bar (R) as well as the internal root 50 are joined or connected by no welding, so that problems such as reduction in rigidity or deformation occurring during welding do not occur.

The insulating beam 60 includes an insulating material 61 installed between each inner side of the left and right side wall portions 10 and the bottom portion 20, and between the vertical reinforcing rod 30 and the horizontal reinforcing rod 40, ,

The insulating material 61 is fixed with a nut 64 by passing through each of the clinching contact surfaces of the vertical reinforcing bars 30 and the horizontal reinforcing bars 40 and the steel plates of the left and right side walls 10 and the bottom 20 It is coupled with a coupling bolt 63.

That is, after installing by inserting an insulating material 61 between each steel plate of the side wall portion 10 and the bottom portion 20, the vertical reinforcing rod 30 and the horizontal reinforcing rod 40, the side wall portion by tightening the coupling bolt 63 (10) and floor (20)-Insulation material (61)-Vertical reinforcement (30) and horizontal reinforcement (40) are constructed at once, and the vertical reinforcement (30) and horizontal reinforcement (40) are mutually clinched. Is joined by

At this time, the coupling bolt 63 may be inserted through only the side wall portion 10 (or the bottom portion 20) and the insulating material 61, but the present invention applies the clinching method to the vertical reinforcing rod 30 And since the horizontal reinforcing rod 40 is provided with the clinching contact surfaces 31 and 41, by tightening the nut 64 by inserting the coupling bolt 63 at the overlapping portion of the steel plate, the steel plate generated when tightening the nut It can prevent pressing or deformation.

At this time, for insertion of the coupling bolt 63, a separate coupling hole for inserting the coupling bolt 63 is drilled in the side wall portion 10, the bottom portion 20, and the clinching contact surface portions 31 and 41. If necessary, a support steel plate for supporting the coupling bolt 63 may be additionally added to the outer surfaces of the side wall portion 10 and the bottom portion 20.

Therefore, when a conventional composite-beam insulation material is required, since the insulation must be installed by driving the insulation material into the outer wall of the beam with a concrete nail after the concrete is cured, there is inconvenient that the construction of the insulation material 61 is directly performed at the site,

The present invention can be manufactured by pre-assembling the insulating material 61 on the outer surface of the beam form (F) using the coupling bolt (63), the beam form (F) including the internal reinforcement (R) and the internal root (50) Of course, all the constituent parts of the composite-beam except concrete are mass-produced, up to the insulation beam 60 to which the insulation material 61 is added, and after pre-production at the factory, on-site construction is made, making it convenient and manufacturing. It can provide effects such as reduction of unit cost and reduction of construction period.

In addition, the wall formwork 70 is used when the beam is constructed to be connected to the upper end of the wall, and is connected to the bottom of the bottom part 20 of the beam formwork F to form a casting space for wall construction.

Specifically, the wall formwork 70,

It is joined to the beam formwork (F) by a clinching method so as to be spaced apart from each side of the bottom surface of the bottom part 20 along the length direction of the beam by a predetermined distance, and the inner end of the steel sheet is bent downwardly, and the fitting part 71a A pair of support plates 71 provided,

A floor reinforcing rod 72 that is joined by a clinching method between each fitting portion 71a of the support plate 70, and is erected and connected to protrude from the outer surface of the bottom portion 20,

It includes a side wall plate 73 coupled to extend to the lower side of each of the fitting portion (71a) to form a wall placement space under the floor reinforcement (70).

The support plate 71 includes a clinching contact surface portion 71b in which the inner end of the steel plate is bent in a downward vertical direction and the fitting portion 71a is provided, and the outer end of the steel plate is bent in an upper vertical direction. , The clinching contact surface portion 71b is in contact with the outside of the steel plate of the side wall portion 10 and is joined by a clinching method.

At this time, the clinching contact surface portion 71b is omitted, and a method of joining the support plate 71 itself to the steel plate of the bottom portion 20 by a clinching method may also be considered.

The floor reinforcing rod 72 is provided with a clinching contact surface portion 72a by bending the both ends of the steel plate, and the clinching contact surface portion 72a contacts the inner surface of the fitting portion 71a by a clinching method. It is joined, and is erected in a direction perpendicular to the bottom portion 20 to support the bottom portion 20.

At this time, the clinching contact surface portion 72a of the floor reinforcing bar 72 may be bent into various shapes such as a'C' shape or a'Z' shape as shown in FIG. 7, and in some cases, the general reinforcing bar fitting portion 71a ) May be replaced with reinforcing bars connected between them.

In addition, the clinching contact surface portion 72a of the floor reinforcing rod 70 has a top wave width (ie, height) lower than the height of the fitting portion 71a, so that the floor reinforcing rod 70 is at the top of the fitting portion 71a. It is preferable to use a part of the lower end of the fitting portion 71a as a coupling portion of the side wall plate 73 while being bonded in contact with.

The side wall plate 73 is a wall concrete is poured, and as it is coupled to the fitting portion 71a, a wall made of concrete and a steel plate is integrally connected to the lower side of the beam to support the beam.

This side wall plate 73 is cut according to the standard of the wall and is attached to the outer surface of each fitting part 71a to be combined, and at this time, using the lower end of the fitting part 71a where the clinching contact surface part 72a does not overlap. Combined with steel plate bolts to form the outer wall surface of the wall.

In this case, the side wall plate 73 can also be joined by the clinching method, but the beam form (F), unlike the steel plate, the steel plate of the wall should have a thicker thickness, so the side wall plate ( It is more preferable to couple 73) to the support plate 71.

On the other hand, as shown in Figure 8, when one end of the composite-beam is connected to the girder (G) installed in the direction perpendicular to the beam, the present invention is a side wall forming the opening of the beam form (F) as shown in Figure 8 [B] A state in which the clinching contact surface Fa is formed by bending the part 10 or the bottom 20 or one end of both at right angles, and the clinching contact surface Fa is in close contact with the girder G Can be joined by the clinching method.

Therefore, when connecting the conventional composite-beam to the girder as shown in Fig. 8 [A], all of the corresponding parts are joined by spot welding,

The composite beam of the present invention is made without welding by applying a clinching method to the connection part with the girder (G) as shown in Fig. 8 [B], so that a welding part is not generated, as well as a plating film due to welding heat. This peeling phenomenon does not occur.

The present invention of this configuration does not include the beam formwork (F), the insulating beam (60), and the wall formwork (70), as well as the internal reinforcing bars (52) including the stirrup reinforcement (52) installed inside the beam formwork (F). In addition to being able to easily assemble by welding, the material can be produced and assembled in a factory in an automated manner and shipped, thereby reducing manufacturing cost and improving construction convenience.

In the above description of the present invention, a beam-integrated non-welded steel sheet formwork has been mainly described with reference to the accompanying drawings, but the present invention is capable of various modifications, changes, and substitutions by those skilled in the art, and such modifications, changes and substitutions are made in accordance with the present invention. It should be construed as falling within the scope of protection.

F: Steel sheet form R: Internal reinforcement
10: side wall portion 20: bottom portion
11, 21: wrinkle portion 12, 22: embossing portion
30: vertical reinforcement 40: horizontal reinforcement
50: internal reinforcement 51: construction reinforcement
52: stirrup reinforcement 53: side pressure reinforcement
60: insulation beam 61: insulation
62: outer wall steel plate 70: wall formwork
71: support plate 72: floor reinforcement
73: side wall plate

Claims (4)

In the beam-integrated non-welded steel sheet formwork that does not dismantle the formwork steel sheet from concrete,
It forms a casting space for beam construction with an open top surface, and has a corrugated portion formed in the longitudinal direction of the beam while protruding from the surface of the steel plate by bending the steel plate, and an embossing portion formed by pressing a part of the steel plate to protrude from the surface of the steel plate. Beam formwork consisting of left and right sidewalls and bottom;
An internal reinforcing rod consisting of a vertical reinforcing rod and a horizontal reinforcing rod provided with through holes formed to protrude from each inner surface of the left and right side wall portions and the bottom portion and connected, and having through holes formed through both sides of the inner portion; And
Includes; Including; Including; the through hole, the internal reinforcement including the construction reinforcement connected in the longitudinal direction of the beam,
Each contact surface of the side wall part, the bottom part, the vertical stiffener and the horizontal stiffener are all joined by a clinching method,
The internal reinforcing bar is bent and molded in a'C' shape corresponding to the internal reinforcing bar to be connected to the construction reinforcing bar, the vertical part of the stirrup reinforcing bar or both vertical reinforcing bars through holes, or both left and right constructions Beam-integrated non-welded steel sheet formwork, characterized in that it comprises a side pressure reinforcing bar connected to the for reinforcing bar.
delete The method of claim 1,
Further comprising; a wall formwork connected to the lower part of the bottom of the beam formwork to form a casting space for wall construction,
The wall formwork,
A pair of support plates that are joined to the beam formwork by a clinching method so as to be spaced apart by a predetermined distance from both sides of the bottom of the bottom along the longitudinal direction of the beam, and have a fitting portion formed by bending the inner end of the steel plate downward,
A floor reinforcing rod that is joined by a clinching method between each fitting portion of the support plate, and is erected and connected to protrude from the outer surface of the bottom portion
A beam-integrated non-welded steel plate formwork, characterized in that it comprises a side wall plate that is coupled to extend to the lower side of each of the fitting portions to form a casting space for a wall under the floor reinforcement.
The method of claim 1 or 3,
Insulating beams are formed, including an insulating material installed between the left and right sidewalls and the bottom, and an insulating material installed between the vertical and horizontal reinforcements,
The heat insulating material is a beam-integrated non-welded steel plate formwork, characterized in that the vertical reinforcing rod and the horizontal reinforcing rod penetrate each of the clinching contact surfaces, the left and right side walls, and the bottom portion of the steel plate and are fixed with a nut.

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