KR101514773B1 - Shear Reinforcing system of Flat Slab by unevenness type reinforcing member - Google Patents

Abstract

The present invention relates to a flat plate shear reinforcement system using a concavo-convex reinforcing material, comprising: an upper reinforcing bar (3) consisting of a plurality of first main ropes (11) and a first reinforcing rope (12) intersecting in a lattice pattern; A lower reinforcing bar 5 consisting of a plurality of second main ropes 13 and a second reinforcing rope 14 crossing in a lattice pattern; And a plurality of shear reinforcements (7) surrounding columns (C) supported by the slab (10), wherein the shear reinforcements (7) And a plurality of shear reinforcements (15) repeatedly assembled and extended at least twice in the same direction between the shear reinforcement (5) and the shear reinforcement (15) A plurality of shear reinforcement pieces 17 disposed adjacent to each other; Upper or lower connecting pieces (19, 21) connecting upper ends or lower ends of the plurality of front end reinforcing pieces (17); And a fastening means (20) coupled to another adjacent shear reinforcement (15) and integrally connected to the another shear reinforcement (15), so that the pillar Since the shear reinforcement arranged at the adjacent portion is formed by assembling a plurality of shear reinforcements, the workability of the entire slab can be improved, and the slab strength can be maintained more stably.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a shear reinforcement system for a flat plate,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flat plate shear reinforcement system using a concave-convex stiffener, and more particularly, to a flat plate shear reinforcement system using a concavo- And to a flat plate shear reinforcement system using a concave-convex stiffener for facilitating assembly.

Generally, a flat plate slab is a building structure in which the floor is composed of only slab without a beam, and the load of the slab is directly transmitted to the column. Since stress is concentrated around the column of the slab, breakage due to punching shear tends to occur.

In order to prevent such shear failure, the conventional flat plate slab reinforces the shear resistance of the adjacent portion of the slab to the column, and a representative example thereof is a slab laying structure having a shear reinforcement.

This struc- ture structure is described in Registration No. 20-447972 (shear stiffener of a concrete unglazed plate structure) registered as a utility model in the Korean Intellectual Property Office, and as shown by reference numeral 101 in Fig. 1, The shear reinforcement 107 is disposed at the adjacent portion to increase the resistance to shear. The shear reinforcement 107 is disposed between the upper reinforcing bar 103 and the lower reinforcing bar 103 and is disposed in parallel with the first main bar 111 or the first reinforcing bar 112 of the upper reinforcing bar 103.

2, each of the shear reinforcement members 107 includes a plurality of shear reinforcement pieces 117 arranged in the thickness direction of the slab 110 and adjacent to each other in the longitudinal direction, And the upper or lower connecting pieces 119 and 121 connecting the upper end or the lower end of the shear reinforcement member 117. It is preferable to maintain the arrangement interval of the shear reinforcement members 117 generating the shear force of the shear reinforcement member 107 constant, Is an important factor for maintaining the overall shear resistance of the sieve 107 uniformly.

1 and 2, the conventional shear reinforcement member 107 is repeatedly formed by the shear reinforcement member 117 and the upper or lower connecting pieces 119 and 121 with a long length and a long length The number of irregularities increases. Therefore, even though the length of the upper or lower connecting pieces 119 and 121 is the same, the shear reinforcement member 107 can be deformed when the shear reinforcement member 107 is lifted during construction or transportation, 117 can not be maintained constant.

In addition, the conventional shear reinforcement 107 may be deformed due to the above-mentioned deflection, and it is inconvenient to manufacture and store due to its long length, and also inconvenience in handling. Further, there is a problem that the workability of the laying work is lowered there was.

KR 20-447972

The present invention has been proposed in order to solve the problem of the conventional flat plate slab laying structure having a shear reinforcement. The present invention relates to an uneven plate sheave reinforcement used to increase the shear resistance of a flat plate slab, And to improve the workability of the coating film.

In order to achieve the above object, the present invention provides an upper reinforcing bar comprising a plurality of first main ropes and a first reinforcing rope intersected in a lattice pattern, A lower reinforcing bar made of a plurality of second main ropes and a second reinforcing rope crossing in a lattice pattern and arranged at a lower end of the slab in parallel with the upper reinforcing bar; And a plurality of shear reinforcements arranged parallel to the first and second main rods or between the first reinforcement and the lower reinforcement and the first and second reinforcement ropes and surrounding the columns supported by the slab Wherein the shear reinforcement member is repeatedly assembled and extended at least twice in the same direction between the upper reinforcing bars and the lower reinforcing bars so that the first and second main ropes or the first and second reinforcing bars are arranged side by side A plurality of shear reinforcement elements arranged in the thickness direction of the slab and arranged adjacent to each other at regular intervals in the longitudinal direction of the slab; An upper or lower connecting piece arranged in the longitudinal direction of the slab and connecting the upper or lower ends of the plurality of shear reinforcement pieces; And a fastening means provided on the shear reinforcement member or the connecting piece and coupled to another adjacent shear reinforcement to be integrally connected to the another shear reinforcement. Shear reinforcement system.

The fastening means may include a plurality of shear reinforcement elements arranged in the thickness direction of the slab and arranged to be adjacent to each other at regular intervals in the longitudinal direction of the slab; An upper or lower connecting piece arranged in the longitudinal direction of the slab and connecting the upper or lower ends of the plurality of shear reinforcement pieces; And a fastening means formed at the distal end of the shear reinforcement at one end and at the end of the upper or lower connecting piece at the other end, respectively.

In addition, the fastening means may have a cross-shaped locking protrusion end which is bent at one end by curling the end of the shear reinforcement at one end, And a crescent-shaped cogging end which is bent inward and curved inward at an end of the upper or lower connecting piece located at the other end.

Further, when the neighboring shear reinforcement is assembled, the interval between the shear reinforcement at the other end of the shear reinforcement located at one side and the shear reinforcement at one end of the shear reinforcement located at the other side may be the upper or lower It is preferable that the length is equal to the length of the connecting piece.

In addition, when the neighboring shear reinforcement is assembled, it is preferable that the fastening means to be coupled varies the exposure position in the shear reinforcement depending on the length of the upper or lower connecting piece on which the claw ends are formed.

In addition, it is preferable that the fastening means further include a connection pin inserted through the hooked end and the hooked end of the fastened state.

The shear reinforcement, the upper connecting piece, and the lower connecting piece may include a fixing groove embedded in the shear reinforcement, a fixing hole passing through the shear reinforcement, or a fixing arc cut at a corner of the shear reinforcement It is preferable to have any one selected from a group of fixing means.

The fastening means may include a plurality of shear reinforcement elements arranged in the thickness direction of the slab and arranged to be adjacent to each other at regular intervals in the longitudinal direction of the slab; An upper or lower connecting piece arranged in the longitudinal direction of the slab and connecting the upper or lower ends of the plurality of shear reinforcement pieces; And a fastening means formed on the end of the upper or lower connecting piece located at one end and at the end of the upper or lower connecting piece located at the other end, respectively.

Also, the fastening means may include a male protrusion formed in a dovetail shape on the upper or lower connecting piece to be overlapped when the neighboring shear reinforcement is assembled, the male protrusion being formed at one end of the upper or lower connecting piece; And a female groove formed on the upper or lower connecting piece at the other end to be engaged with the male projection in a snap manner.

The fastening means may include a plurality of pin holes formed through the upper or lower connecting piece to be overlapped, And a plurality of connection pins inserted into the pin hole, wherein the connection pin is any one selected from a split pin and a snap pin.

It is also preferable that the station further includes a station disposed in an intersection space between the slab and the column so that a plurality of the shear reinforcement members are detachably coupled to the column side end portion.

Preferably, the front end reinforcement member is formed with a hinge ring at a side of the pillar, and the station has a hinge groove formed at a position corresponding to the hinge ring so that the hinge ring is detachably and detachably coupled .

The stationary sheave reinforcement member and the station may have a concave groove or a locking protrusion formed in the column side end portion of the shear reinforcement member and a locking projection or concave groove formed in a position corresponding to the column side end portion of the shear reinforcement member of the station So that they are detachably matched with each other.

Further, it is preferable that the shear reinforcement and the station are pin-coupled.

According to the flat plate shear reinforcement system of the present invention, since the shear reinforcement that is disposed at the column adjacent portion of the flat plate slab and increases the shear resistance of the slab is constructed by assembling a plurality of shear reinforcements, The workability of the laying work for the entire slab can be greatly improved.

Further, since the unit shear reinforcements are short in length, the other ends of the shear reinforcement are hardly sagged with respect to one end. Therefore, the pitch change of the concave and convex portions due to sagging can be prevented and the shear resistance of the slab can be maintained uniform, It is easy to store and transport.

In particular, even if the length of the shear reinforcement is short, the length of the shear reinforcement can be freely extended as much as desired through the fastening means, so that the length can be easily changed to a desired length at the time of construction.

Further, since the entire shear reinforcement used in the slab reinforcement structure can be modularized into a single unit through the station, the workability of the shear reinforcement can be further improved.

1 is a plan view showing a conventional flat plate slab laying structure.
Fig. 2 is a perspective view showing the shear reinforcement shown in Fig. 1. Fig.
3 is a perspective view illustrating a structure of a reinforcement structure including a planar shear reinforcement system using a concave-convex reinforcing member according to an embodiment of the present invention.
Figure 4 is a plan view of Figure 3;
5 is a front view of the shear reinforcement shown in Figs. 3 and 4. Fig.
Figs. 6 to 11 are front views of the shear reinforcement shown in Fig. 5 according to another embodiment; Fig.
FIG. 12 is a front view showing a shear reinforcement according to another embodiment of the present invention, wherein FIG. 12 (a) shows a form in which a joint is formed by a unit piece in the form of a crank, FIG. 12 Respectively.
13 is a front view showing a shear reinforcement according to another embodiment of the present invention.
Figs. 14 to 17 are perspective views of the shear reinforcement shown in Fig. 13 according to another embodiment; Fig.
18 is a perspective view illustrating a planar plate shear reinforcement system using a concave-convex stiffener according to another embodiment of the present invention.
19 is a partial front sectional view of the hinge ring of the shear reinforcement shown in Fig. 18 and enlarged showing the hinge grooves of the station.
FIG. 20 is a perspective view showing a partially enlarged view of a front end reinforcement member and a station employing a concave-convex coupling pair. FIG. 20 (a) shows a state in which a flat plate station is applied, and FIG. 20 (b) shows a state in which a box-shaped station is applied.
Fig. 21 is a partially enlarged perspective view of a shear reinforcement member and a station employing a pin-coupling pair. Fig. 21 (a) shows a state in which a flat plate type station is applied, and Fig. 21 (b) shows a state in which a box type station is applied.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A planetary shear reinforcement system using a concave-convex stiffener according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The shear reinforcement system of the present invention comprises an upper reinforcing bar 3, a lower reinforcing bar 5, and a plurality of shear reinforcement members 7 as shown by reference numeral 1 in FIG.

3, the upper reinforcing bar 3 is disposed at the upper end of the flat plate slab 10 and includes a plurality of first main bars 11 arranged in the width direction of the slab 10, And a plurality of first expansion roots (12) arranged crosswise to the first main ropes (11) so as to form a lattice shape.

3, the lower reinforcing bars 5 are disposed at the lower ends of the flat plate slabs 10 and include a plurality of second main bars (not shown) disposed in the width direction of the slab 10 13) and a plurality of second expansion roots (14) crossing the second main ropes (13) to form a lattice.

The shear reinforcement 7 is a means for resisting the shear force applied to the boundary of the column C of the slab 10 in the structure of the slab 10 and is supported by the slab 10 A portion along the edge of the column C as shown in the width direction of the slab 10, that is, the first and second reinforcing bars 3 and 5, And the other part is arranged at a predetermined interval in the longitudinal direction of the slab 10, that is, in the direction parallel to the first and second expansion ropes 12 and 14. [ Respectively.

3 and 4, each of the shear reinforcements 7 is constructed by repeatedly assembling a plurality of shear reinforcements 15 having the same shape, Is repeatedly assembled at least twice in the same direction in parallel with the first and second main ropes (11,13) or the first and second main ropes (12,14) between the upper reinforcing bar (3) and the lower reinforcing bar (5) So as to form a shear reinforcement 7 extending sufficiently long.

3 to 17, the shear reinforcement 15 can be deformed into various shapes having slight differences, and basically has a band shape repeatedly bent in the form of a rectangle, a square, and a trapezoid do. This is because the shear reinforcement 15 has a plurality of shear reinforcement pieces 17 for increasing the shear resistance of the slab 10 and a plurality of upper and lower connecting pieces 17 for connecting the shear reinforcement pieces 17 alternately up and down, (19, 21), and fastening means (20) for connecting them.

Here, the shear reinforcement 17 is disposed in the thickness direction of the slab 10, and is disposed on the upper and lower sides in the drawing, such as in FIGS. 3 and 5, to determine the height of the shear reinforcement 15, (15) in the longitudinal direction.

The upper connecting piece 19 connects the plurality of shear reinforcement pieces 17 together with the lower connecting piece 21. The upper connecting piece 19 is arranged in the longitudinal direction of the slab 10, Thereby determining the length of the shear reinforcement 15.

The lower connecting piece 21 also connects a plurality of the front end reinforcing pieces 17 together with the upper connecting piece 19 so that the neighboring front end reinforcing pieces 17 are arranged in the longitudinal direction of the slab 10, And the length of the front end reinforcement 15 is determined together with the upper connecting piece 19. [

As described above, the shear reinforcement 15 according to the present invention is preferably a unit body constituting the shear reinforcement 7, and it is preferable that the shear reinforcement is manufactured so as to repeat the uneven pattern one to four times for convenience of handling. It is more preferable to repeat the concavo-convex pattern three times as shown in Figs. 5 to 8 in consideration of airflow.

The fastening means 20 is a means for assembling the shear reinforcements 7 by connecting the respective shear reinforcements 15 as shown in FIG. When assembling, two adjacent shear reinforcements 15 may be connected, and any type of reinforcement can be used as long as it is capable of supporting a tensile force applied between the two shear reinforcements 15 while being detachable. The fastening means 20 is provided on the end of the shear reinforcement 17 at one end of the plurality of shear reinforcement pieces 17 constituting the shear reinforcement 15 and at the ends of the plural upper or lower connecting pieces 19, 21 are formed respectively at the ends of the upper or lower connecting pieces 19, 21 located at the other end of the shear reinforcement 15. The two adjacent shear reinforcements 15 are mutually mated when assembled .

5, the fastening means 20 may be constituted by a stop-projection end 23 having a cross-sectional shape and a pendent end 25 having a cross-sectional shape, for example, Is formed at one end of the shear reinforcement 15, that is, the end of the shear reinforcement 17 located at the left end in the drawing, in one end inwardly, that is, once in a cross-section shape. 5, the other end of the front end reinforcement 15, that is, the end of the lower connecting piece 21 located at the right end in the drawing, is folded inward in two stages, that is, And is formed in a cross-sectional shape. Therefore, the hooking end 25 is adapted to sandwich the stump end 23 of the neighboring shear reinforcement 15 when the adjacent two shear reinforcements 15 are assembled, and the shear reinforcement 7 And is configured to be mutually mated with the stopping protrusion 23 so as to support a tensile force applied to the stopping protrusion 23.

It is preferable that the shear reinforcement 15 maintain a uniform shear resistance in the longitudinal direction of the shear reinforcement 7. The shear reinforcement 15 may have a concavo-convex interval of the shear reinforcement 15 itself, The length of the concave / convex portions between the adjacent two shear reinforcements 15 may be variable. In order to keep the convex / concave intervals constant, for example, The shear reinforcement 17 at the rear end of the front end reinforcement 15 positioned at the front side or the left end and the shear reinforcement pieces 17 at the rear end of the front end reinforcement 15 positioned at the right side, ) Should be the same as the other concavo-convex spacing, that is, the length of the upper or lower connecting piece 19, 21.

The shear reinforcement 15 may also be provided with a fastening means 20 for connecting the two shear reinforcements 15 while keeping the spacing between the adjacent shear reinforcements 15 the same as the other concave- The fastening position can be varied. In other words, the fastening means 20 of the shear reinforcement 15 is matched to one when two adjacent shear reinforcements 15 are assembled, and the upper or lower connecting piece 20, The position exposed from the shear reinforcement 15 varies depending on the length of the shear reinforcements 19 and 21. 5, when the length of the upper or lower connecting pieces 19, 21 located at the rear end is longer than the length of the other upper or lower connecting pieces 19, 21, The fastening means 20 is exposed to the bottom surface side of the shear reinforcement 7 if it can be formed by one bending in the reinforcing member 17. [ 7, the length of the upper or lower connecting piece 19, 21 located at the rear end is shorter than the length of the other upper or lower connecting piece 19, 21, The protruding portions of the fastening means 20 are exposed to the upper surface side of the front end reinforcing member 7. In this case,

6, 8, and 9, the fastening means 20 is provided with a connecting pin 25 and a connecting pin 23 at the hooking end 23 and the hooking end 23, respectively, 31). At this time, when the fastening means 20 is exposed to the bottom face side of the front end reinforcing member 15 as shown in Fig. 8, the lower face is exposed to the upper face side of the front end reinforcing member 15 as shown in Figs. 6 and 9 The connecting pin 31 is inserted into the fastening means 20 from above.

The shear reinforcement 7 of the present invention is characterized in that the shear reinforcement 17, the upper connecting piece 19 and the lower connecting piece 21 constituting each of the front end reinforcing members 15, And means for increasing the adhesive force of the concrete. 10 and 11, the shearing reinforcement 17, the upper connecting piece 19, and the lower connecting piece 21 may be provided in the lateral direction The fixing groove 33 may be formed or the fixing projection 35 may be formed by projecting in the lateral direction. 14, the fixing hole 41 may be formed through the shear reinforcement member 17, the upper connecting piece 19, and the lower connecting piece 21, And the arc 43 may be formed by cutting.

As another embodiment of the present invention, the shear reinforcement 7 shown in Fig. 12 is constituted by the unit pieces 16 having the same shape as the crank shape of the respective shear reinforcements 15 of the unit chains. Therefore, except for this point, the shear reinforcement 7 is formed by repeatedly assembling the shear reinforcement 15 in the longitudinal direction in the same manner as the shear reinforcement 7 shown in Fig. 5, Since the reinforcing member 15 is connected to the shear reinforcement 7 in the same manner as in FIG. 5 by the same fastening means 20, detailed description thereof will be omitted. The shear reinforcement 15 shown in Fig. 12 has a joint portion 18 bent at right angles to both ends of each unit piece 16, and each joint portion 18 is connected to a neighboring joint portion 18, So that the unit pieces 16 are connected to each other. 12 (a), the joint portion 18 to which the unit pieces 16 are abutted protrudes outward, whereas the shear reinforcement 15 shown in Fig. 12 (b) The reinforcement 15 is welded to the same portion as the joint portion 18 and welded to the joint portion 18 so as to protrude in the same shape as the joint portion 18. [

The reinforcing structure according to the present invention is further provided with the shear reinforcement 7 shown in Figs. 13 to 17 as another embodiment. The shear reinforcement 7 is also constructed by repeatedly assembling the same type of shear reinforcement 15 as shown in Fig. 13, wherein each shear reinforcement 15 is arranged in the longitudinal direction of the slab 10 , So that the shear reinforcement 7 is formed. At this time, each of the shear reinforcements 15 also includes a plurality of shear reinforcement pieces 17, upper or lower connecting pieces 19 and 21, and fastening means 20.

Here, since the shear reinforcement member 17 and the upper or lower connecting pieces 19 and 21 are the same as those shown in Fig. 5 and the like, further explanation is omitted. 13 to 17, the fastening means 20 is formed at both ends of the front end reinforcing member 17, and the upper or lower connecting pieces 19, 21 and the ends of the upper or lower connecting pieces 19, 21 located at the other end, that is, the right side in the drawing, are mutually coupled.

In this case, the fastening means 20 can also be realized in various forms. As one example thereof, the fastening means 20 may be formed by attaching / detaching the dovetail type male protrusion 37 and the female groove 39 shown in Figs. . The male protrusion 37 is formed in a downwardly protruding shape in the form of a dovetail, for example, in a trapezoidal shape, on the lower connecting piece 21 at one end of the front end reinforcing member 15, as shown in the figure. The female groove 39 is formed in the lower connection piece 21 at the other end of the front end reinforcing member 15. The female connection member 21 is formed in a shape And is formed so as to be embedded in the lower connection piece 21 in a state of being opened upward in a dovetail form so as to receive the projection 37 in a snap manner.

As another example of the fastening means 20, there can be mentioned the pin coupling means shown in Figs. 16 and 17. Fig. This fastening means 20 is also a means for detachably connecting the upper or lower connecting pieces 19 and 21 which are overlapped with each other when assembling the adjacent shear reinforcements 15. The fastening means 20 includes a plurality of pin holes 45, And a pin 31. Here, the pin hole 45 may be formed by, for example, passing through the lower connecting piece 21 of the overlapped one side front end reinforcing member 15 and the lower connecting piece 21 of the other side front end reinforcing member 15 on the same line And the connecting pin 31 is inserted into the pin hole 45 to detachably connect two neighboring shear reinforcements 15.

In this case, the connecting pin 31 may also be selectively used in various forms. In the case of a split pin that can be bent in the form of an eye bolt by a single wire wire as shown in FIG. 16 and the lower end can be opened in a double- It is possible not only to easily fasten a shear reinforcement 15 with a detachable form but also to increase the fixing force of the concrete partially due to the annular portion of the pin head when the slab is inserted. 17, when a snap pin having a hook-shaped locking protrusion is formed at the lower end thereof as shown in FIG. 17, neighboring shear reinforcements 15 can be more easily fastened in a round- , It is possible to partially increase the fixing force for the concrete due to the gap of the pin leg when the slab is poured.

On the other hand, the grounding structure 1 of the present invention further includes a station 9 for modularizing a plurality of shear reinforcements 7, as shown in Figs. 18 and 19. That is, the station 9 is means for detachably coupling the end portion of the front end reinforcing member 7 on the side of the column C, that is, the inner end, as shown in Fig. 18, C and arranged above or below the intersecting space S according to the shape of the inner end of the shear reinforcement 7. [ At this time, the station 9 is provided with four long corrugated wires 48 at four corners as shown in FIG. 18, so that the stationary wire M located at the corner of the column C is connected to the wire 48 And is fixed to the intersecting space S between the cast iron rods M as a bundle. The station 9 has a square or rectangular shape along the edge of the column C so as to come into contact with the inner end of each shear reinforcement 7. The stationary hole 47 penetrates through the center so as not to interfere with the concrete pouring do.

At this time, not only the station 9, but also the shear reinforcement 7, as shown in Figs. 18 to 21, are provided with an inner end of each of the shear reinforcements 7 so as to detachably connect the plurality of shear reinforcements 7 A plurality of fastening portions are provided along the rim portion of the station 9, and the fastening portion can be realized by a pair of the hinge grooves 51 and the hinge grooves 53 as shown in FIGS. 18 and 19 As well as by a concave-convex coupling pair, as shown in FIG. 20, or by a pin-coupling pair, as shown in FIG.

18 to 19, the shear reinforcement 7 is formed at its inner end with a hook-shaped hinge ring 51, and the station 9 is provided with a hinge- A hinge groove (53) is formed at a position corresponding to the hinge ring (51). That is, the station 9 is formed with a hinge groove 53 at one side corresponding to the hinge ring 51 of the shear reinforcement 7. At this time, the hinge ring 51 and the hinge groove 53 are not only detachable but also hingedly pivotally coupled.

As another type of engagement pair, the shear reinforcement 7 and the station 9 can be coupled by a concave-convex coupling pair, as shown in Fig. In this case, the shear reinforcement 7 is formed with a concave groove or an engaging projection 55 at the end of the column C side, that is, at the inner end thereof. The station 9 is provided with a concave groove or a recess A locking protrusion or a recessed groove 57 is formed in the rim portion corresponding to the recess 55 or the engaging recess or recess 55, That is, the station 9 is formed with another locking protrusion or recessed groove 57 at one side corresponding to the concave groove or the locking projection 55 of the shear reinforcement 7.

As another type of mating pair, the shear reinforcement 7 and the station 9 shown in Fig. 21 are detachably coupled by pin engagement. It is sufficient for the shear reinforcement 7 and the station 9 to pass through the pin hole 63 at the corresponding overlapping position and to the pin 59 used for the coupling, It is preferable to use a split pin. At this time, the pin protrusion 61 is projected to the position of the one pin hole 63 instead of the pin, so that the shear reinforcement 7 and the station 9 can be pin-connected without a separate pin.

The station 9 shown in Figs. 20 (a) and 21 (a) is in the form of a flat plate, disposed adjacent to the lower reinforcing bar 5 and positioned at the lower end of the intersecting space S, The station 9 shown in Figs. 20 (b) and 21 (b) is box-shaped and is filled on the intersecting space S, The body 7 is placed on the top.

Now, the operation of the flat plate shear reinforcement system 1 according to the preferred embodiment of the present invention will be described as follows.

In order to construct the slab 10 according to the foundation structure 1 of the present invention, the lower reinforcing bar 5 is first laid. To this end, a plurality of the second main ropes 13 and the second expansion roots 14 are arranged so as to be orthogonal to each other.

Then, a plurality of shear reinforcements (7) are assembled by repeating the operation of repeatedly connecting the plurality of shear reinforcements (15) in the longitudinal direction. 5, 7, 10 and 11, the front end reinforcement 15 is provided with fastening means 20 formed at both ends of the front end reinforcement 15, And is detachably connected to one shear reinforcement 15. At this time, the one-end locking protruding end 23 is fitted to the rear end claw end 25 of the other end of the adjacent shear reinforcement 15, and is matched by the tensile force acting in the longitudinal direction of the shear reinforcement 7. [ State.

Likewise, as shown in Figs. 13 to 15, even when each shear reinforcement 15 has dovetail type fastening means 20, the male protrusion 37 and the female groove 39 are matched It is possible to easily assemble the shear reinforcement 7. At this time, the male protrusion 37 protruding from the lower connecting piece 21 at one side of the front end reinforcing member 15 is inserted into the other lower connecting piece 21 The male protrusion 37 may be inserted into the female groove 39 in a snap manner or may be coaxially slid on the side to be laterally inserted.

8 and 9, in the case of increasing the coupling force of the fastening means 20 by using a separate fastening aid, first, as in the above case, The proximal end 23 is fitted to the rear end claw end 25 of the other end of the adjacent shear reinforcement 15 and aligned. Thereafter, the adjacent shear reinforcements 15 are connected more securely by fastening the connecting pin 31 through the mating fastening means 20, that is, the fastening end 23 and the fastening end 25, Thereby forming a reinforcing member 7.

Similarly, as shown in Figs. 16 and 17, instead of using the male protrusion 37 or the female groove 39, a separate fastening auxiliary such as the connecting pin 31 is used to connect two adjacent shear reinforcements 15, the lower connecting pieces 21 at the one end of the shear reinforcement 15 may be connected to the lower connecting pieces 21 at the other end of the adjacent shear reinforcements 15, By inserting and fastening the connecting pin 31 into the pin hole 45, the shear reinforcement 15 can be reliably connected. 16, when the split pin is used as the connecting pin 31, the connecting pin 31 is inserted into the pin hole 45 to bend the leg portions in opposite directions to each other, Not only can the connection of the slab 15 be completed but also the fixing force for the concrete can be partially increased due to the annular portion of the pin head when the slab is poured. 17, when the snap pin is used as the connecting pin 31, the shear reinforcement 15 can be formed simply by pressing the snap pin against the pin hole 45, As shown in FIG.

3, the second main shaft 13 or the second main shaft 14 of the lower reinforcing bar 5 along the edge of the column C is engaged with the second reinforcing bar 7, A plurality of shear reinforcements 7 are arranged. Then, the inner end of each shear reinforcement 7, that is, the end portion facing the column C is connected to the inner second expansion rope 14 or the second main rope 13 adjacent to the column C, .

In this way, when the laying of the shear reinforcement 7 in the width direction or the longitudinal direction is completed, the plurality of first main ropes 11 and the first laying power rods 12 are arranged orthogonally to each other on the shear reinforcement 7 When the upper end of the shear reinforcement 7 is joined to the upper reinforcing bar 3 or the lower reinforcing bar 5 by joining the upper reinforcing bar 3 and the opposite end of the shearing reinforcement 7, Is completed.

Here, the shear reinforcement 7 is arranged in a line with a plurality of the front-end reinforcing rods 15 in parallel with the second main rope 13 or the second rectifying rope 14 of the lower reinforcing bar 5, The shear reinforcement rods 15 may be connected in a straight line using the shear reinforcement 20. In other words, the shear reinforcement 7 can be connected and deployed at the same time without connecting the shear reinforcement ropes 15 and connecting them.

18 to 19, since the plurality of shear reinforcements 7 and the station 9 at the center thereof are pivotally coupled to the hinge grooves 53 by the hinge loops 51, That is, when a plurality of shear reinforcements 7 are connected to the station 9 and are transported as one module, the respective shear reinforcements 7 are connected to the hinge grooves 53 So that all the shear reinforcements 7 can be moved together with the station 9 at once so that the station 9 and the shear reinforcement 7 can be modularized. At this time, the front end reinforcement member 7, which is pivotally coupled to the station 9, is folded around the station 9 as if the umbrella is folded around the umbrella band from the hinge of the umbrella nipple Storage and movement are possible.

20 and 21, the shear reinforcement 7 is detachably coupled to the station 9, so that the shear reinforcement 7 is coupled to the upper reinforcing bar 3 or the lower reinforcing bar 5 by separate fastening means Therefore, the shear reinforcement 7 can maintain its original position stably, and therefore, the shear resistance by the shear reinforcement 7 is also kept constant in the width direction and the longitudinal direction of the slab 10.

In particular, since the shear reinforcement 7 can be installed on all four sides of the station 9, the shear reinforcement 7 can be easily installed on all sides of the column C, and one end of the shear reinforcement 7 is connected to the station 9 so that the shear reinforcement 7 having a long length can be prevented from being twisted by a plurality of shear reinforcement ropes 15 connected thereto. That is, when the pair of shear reinforcements 7 are installed on one side of the column C in parallel, the distance 9 between the shear reinforcements 7, The shear reinforcement 7 can be easily installed and the shear reinforcement 7 can be prevented from being laid in an oblique direction because one end of the shear reinforcement 7 is positioned right at the fastening portion of the station 9.

1: Shear reinforcement structure 3: Upper reinforcement
5: Lower reinforcement 7: Shear reinforcement
9: Station 10: Flat plate slab
11: first main muscle 12: first abdominal muscle
13: 2nd main stem 14: 2nd stage power root
15: Shear reinforcement 17: Shear reinforcement
19: upper connecting piece 20: fastening means
21: Lower connection piece 23:
25: hooking pin 31: connecting pin
33: Fixing groove 35: Fixing projection
37: male projection 39: female groove
41: Settling ball 43: Settlement ball
45, 63: pin hole 47:
51: hinge ring 53: hinge groove
55: stopper 57: concave groove
59: pin 61: pin projection
C: Column S: Intersection space

Claims (10)

An upper reinforcing bar (3) made of a plurality of first main ropes (11) and a first reinforcing rope (12) intersecting in a lattice pattern and disposed at the upper end of the slab (10);
A lower reinforcing bar 5 consisting of a plurality of second main ropes 13 and a second reinforcing rope 14 intersecting in a lattice pattern and arranged at the lower end of the slab 10 in parallel with the upper reinforcing bar 3; And
Wherein the first and second main ropes (11,13) or the first and second main ropes (12,14) are arranged side by side between the upper reinforcing bar (3) and the lower reinforcing bar (5) And a plurality of shear reinforcements (7) surrounding the columns (C) supported by the shear reinforcement members (10)
The shear reinforcement 7 is repeatedly assembled and extended at least two times in the same direction between the upper reinforcing bars 3 and the lower reinforcing bars 5 so that the first and second main ropes 11, And a plurality of shear reinforcements (15) arranged in parallel with the first and second expansion ropes (12, 14)
The shear reinforcement (15)
A plurality of shear reinforcement pieces (17) arranged in the thickness direction of the slab (10) and arranged adjacent to each other at regular intervals in the longitudinal direction of the slab (10);
Upper or lower connecting pieces (19, 21) arranged in the longitudinal direction of the slab (10) and connecting upper ends or lower ends of the plurality of the front end reinforcing pieces (17); And
A fastening means 20 provided on the shear reinforcement 17 or the connecting pieces 19 and 21 to be coupled to another adjacent shear reinforcement 15 and integrally connected to the another shear reinforcement 15, ≪ / RTI >
A station 9 disposed at an intersecting space S between the slab 10 and the column C to detachably couple a plurality of the shear reinforcements 7 at the end of the column C, ; ≪ / RTI >
A hinge loop 51 is formed in the shear reinforcement 7 and a hinge groove 53 is formed at one side of the station 9 corresponding to the hinge ring 51 so that the shear reinforcement 7 ) And the station (9) are connected by fastening of the hinge ring (51) and the hinge groove (53)
Or the shear reinforcement 7 is provided with a concave groove or engagement protrusion 55 and a further engagement protrusion or recess 57 is formed on one side of the station 9 corresponding to the concave groove or the engagement protrusion 55 The shear reinforcement 7 and the station 9 are coupled by the engagement of the concave groove or the locking projection,
Or the stationary shear reinforcement (7) and the station (9) are connected by fastening of the pin (59). The method according to claim 1,
Wherein the fastening means (20) is formed at the end of the front end reinforcing member (17) at one end and at the end of the upper or lower connecting piece (19, 21) at the other end, respectively. Shear Strengthening System for Flat Plates. The method of claim 2,
The fastening means (20)
A stump end 23 of a cross-sectional shape formed by folding the end of the shear reinforcement 17 at one end and folding inwardly; And
And a hooked end (25) having a cross-sectional shape bent inward by being bent inward at the end of the upper or lower connecting piece (19, 21) located at the other end,
When the neighboring shear reinforcement (15) is assembled, the shear reinforcement (17) at the other end of the shear reinforcement (15) positioned at one side and the shear reinforcement The interval between the reinforcing pieces 17 is the same as the length of the upper or lower connecting pieces 19 and 21,
When the neighboring shear reinforcement 15 is assembled, the fastening means 20 coupled to the shear reinforcement 15 may be positioned at a predetermined distance Wherein the exposed position of the flat plate-like reinforcing member (15) is variable. The method of claim 3,
Characterized in that the fastening means (20) further comprises a connecting pin (31) inserted through the hooking end (25) and the engagement protruding end (23) in a mutually fastened state. Shear reinforcement system. The method of claim 3,
The front end reinforcing member 17, the upper connecting piece 19 and the lower connecting piece 21 are fixed to the fixing groove 33 inserted in the front end reinforcing member 15, A set of fixing means including a projection 35 which penetrates through the shear reinforcement 15 or a fixing arc 43 which is cut at the edge of the shear reinforcement 15 Wherein the shear reinforcement is a shear reinforcement. The method according to claim 1,
The fastening means 20 is formed on the ends of the upper or lower connecting pieces 19 and 21 located at one end and at the ends of the upper or lower connecting pieces 19 and 21 located at the other end, Shear Strengthening System for Flat Plate by Rectangular Stiffener. The method of claim 6,
The fastening means 20 is formed in a dovetail shape on the upper or lower connecting pieces 19 and 21 which overlap when the adjacent shear reinforcement 15 is assembled,
A male protrusion 37 formed on the upper or lower connecting piece 19, 21 at one end; And
And a female groove (39) formed to snap-fit with the male protrusion (37) on the upper or lower connecting piece (19, 21) at the other end. system. The method of claim 6,
The fastening means (20)
A plurality of pin holes (45) formed through the upper or lower connecting pieces (19, 21) to be superimposed; And
And a plurality of connection pins (31) inserted into the pin holes (45)
Wherein the connection pin (31) is one selected from a split pin or a snap pin. delete delete

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