KR101073514B1 - Slab corner anchoring device and method of disassembling slab panel using the device - Google Patents

Abstract

The present invention discloses a slab corner fixing device used to prevent the fall of the upper structure after dismantling the wall formwork in the process of dismantling the slab panel and the slab panel dismantling method using the same, the slab corner fixing device is the slab corner from which the wall formwork is removed A horizontal plate coupled to a lower part to support the slab corner, a vertical plate coupled to two or more flat ties used for fixing the wall formwork exposed after the wall formwork is removed, and a vertical end portion of which is joined to the bottom of the horizontal plate; And reinforcing pieces joined to respective corners at which the horizontal plate and the vertical plate cross each other, and dismantling may be performed while stabilizing the upper structure during the slab panel dismantling process.

Slab panel, slab corner, slab corner bracket, slab panel support beam, drop beam

Description

Slab corner anchoring device and method of disassembling slab panel using the device}

The present invention relates to a slab corner fixing apparatus, and more particularly, to a slab corner fixing apparatus used to prevent the fall of the upper structure after dismantling the wall formwork in the process of dismantling the slab panel, and a slab panel dismantling method using the same.

In order to construct a multi-layer concrete structure, wall formwork is made, and a plurality of slab panels are horizontally installed on the wall formwork, and then concrete is poured, and such construction is repeated to construct a multi-layer concrete structure.

The slab panel should be installed at a certain height corresponding to the ceiling height of the concrete structure, so it should be robust, easy to install, and easy to dismantle after pouring concrete. In addition, the device system for the installation and disassembly of the slab panel needs a simple structure so that any worker can be easily installed and dismantled, and the time required for installation and dismantling is small.

Korean Registered Utility Model Publication No. 20-0439291 discloses a connector for connecting a wall formwork and a tech support bar. In addition, Korean Patent Publication No. 10-0202049 discloses a ceiling plate system. In addition, Korean Patent Publication No. 10-0812551 discloses a slab formwork support bar that is easy to dismantle.

However, the structure of the members for supporting the slab panel is complicated, the installation and disassembly of the slab panel is not only easy, but also takes a lot of time, the complex structure has the disadvantage that the manufacturing cost increases.

Therefore, in order to solve the above problems, it is necessary to present a device and a method for simple and easy installation and dismantling of a slab panel.

In addition, the slab panel is usually installed at a high position, when the wall formwork is dismantled in the process of dismantling the slab panel structure, the structure of the upper structure is structurally unstable. Therefore, the structure including the upper slab panel is likely to fall, there is a risk of accidents.

Therefore, it is necessary to present an auxiliary device capable of structurally stabilizing the structure of the upper part in the state of dismantling the wall formwork.

The present invention has been made to solve the above problems, an object of the present invention is to provide a slab corner fixing device that can structurally stabilize the upper structure after dismantling the wall formwork simple and robust structure.

Another object of the present invention to provide a slab panel disassembly method that can be easily disassembled slab panel using the slab corner fixing device.

The slab corner fixing device according to the present invention is coupled to a lower slab corner from which the wall formwork is removed, and a horizontal plate supporting the slab corner, and two or more flats used for fixing the wall formwork exposed after the wall formwork is removed. And a vertical plate coupled to the tie and having a vertical end joined to the bottom of the horizontal plate, and reinforcing pieces joined to each corner where the horizontal plate and the vertical plate intersect.

Here, at least two first through holes may be formed in the horizontal plate so as to form a lower portion of the slab corner and an al-pin and a wedge.

In addition, a second through hole formed in a horizontal direction penetrating the thickness of the main body and the flat tie inserted into the second through hole are coupled to the vertical plate with an al-pin. A third through hole formed through the side surface of the second through hole may be formed to be coupled.

The vertical plate is assembled by a pair of symmetrical vertical plate units, and each vertical plate unit communicates with each other to form the third through hole and the grooves symmetric with each other to form the second through hole. A fourth through hole may be formed.

The slab panel dismantling method using the slab corner fixing device according to the present invention, after curing the concrete in a state in which the wall form and the slab panel of the upper and the slab corner consisting of the side of the slab panel and the top of the wall formwork assembled Removing the wall formwork, the slab corner is fixed in combination with the end of the flat tie exposed to the wall after the wall formwork is removed while supporting the bottom of the slab corner in the slab corner from which the wall formwork is removed And installing the fixing device, and disassembling the slab panel after the slab corner fixing device is installed.

According to the present invention, since the upper structure can be stabilized by the slab corner fixing device even after dismantling the wall formwork, the dismantling work can be proceeded in a safe state. Therefore, stability can be ensured in the dismantling operation of the slab panel.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited to the embodiments described below. It doesn't happen. Like numbers refer to like elements in the figures.

1 is a perspective view illustrating a drop beam for installing and dismantling a slab panel according to a preferred embodiment of the present invention. 2 is an exploded perspective view illustrating a part of the drop beam exploded. FIG. 3 is a perspective view schematically illustrating a state in which a drop beam is bound to a slab corner bracket installed on a partially cut slab corner; FIG. Figure 4 is a perspective view showing the slab corner bracket is installed on the slab corner. 5 is a perspective view schematically illustrating a state in which a drop beam and a slab panel support beam are attached to a slab corner bracket. 6 is an exploded perspective view illustrating a part of the slab corner brackets disassembled. 7 and 8 are partial cross-sectional view schematically showing the hook and hook locker is attached to the engaging bar of the slab corner bracket. FIG. 9 is a view schematically illustrating a state in which a slab panel is partially installed by using an apparatus system for installing and dismantling the slab panel. 10 to 14 are cross-sectional views illustrating a method of installing a slab panel by using an apparatus system for installing and dismantling the slab panel according to a preferred embodiment of the present invention. 15 to 19 are cross-sectional views illustrating a method of dismantling a slab panel using a device system for installing and dismantling the slab panel according to an exemplary embodiment of the present invention.

1 to 19, a device system for installing and dismounting a slab panel according to a preferred embodiment of the present invention includes a slab panel support beam 30 supporting a slab panel SP, and a wall surface. The slab corner 10 coupled to the upper end of the wall panel WP, the slab corner bracket 20 inserted into the slab corner 10, and the slab corner bracket 20 are pivotally connected to the slab corner bracket 20. The drop beam 100 is coupled to the panel support beam 30 by the connection bar 144 and is installed to be rotatable with the connection bar 144 on the rotation axis.

The drop beam 100 for installing and dismantling the slab panel SP of the present invention is a structure used to install or dismantle the slab panel SP by binding to the slab panel support beam 30. The drop beam 100, which is bound to the slab panel support beams 30, is coupled to the slab corner bracket 20 located at the upper ends of two opposing wall forms WP. The slab panel SP is placed on the upper part of the slab panel support beam 30, the building material such as concrete is poured on the upper part of the slab panel SP, and when the building material such as concrete is cured and dried, the slab panel SP In order to dismantle the drop beam 100 and the slab panel support beam 30 can be used can be easily dismantled.

Drop beam 100 is a structure that connects between the slab corner bracket 20 and the slab panel support beam 30, the slab panel support beam 30 is lowered by the drop beam 100 is lowered. When the slab panel support beam 30 is lowered in cooperation with the drop of the drop beam 100, the slab panel SP may be separated from a structure such as concrete and easily dismantled.

Hereinafter, the drop beam 100 and a device system for installing and dismantling the slab panel using the same will be described in more detail.

Drop beam 100 of the present invention, the head portion 110 having a hook-shaped hook (112), and the rod-shaped connected to one end of the head portion 110 and provided with a screw thread on the outer surface A tie pipe 130 and a pivot pipe 140 provided to surround the outer surface of the tie rod 130 by a through hole and installed to be movable along the tie rod 130; Spindle nut that is provided to be movable while rotating along the thread of the tie rod 130 and the pivot pipe 140 is prevented from moving any more when the pivot pipe 140 moves a certain distance along the tie rod 130 150).

The head portion 110 includes a hook-shaped hook 112 formed at one end, and a support plate 114 connecting the hook 112 and the tie rod 130. The support plate 114 is provided with a through hole 122 for inserting a fixing pin to fix the slab panel support beam 30.

In the case of installing the slab panel SP, the hook 112 of the head portion 110 spans the slab corner brackets 20 which are respectively installed to be inserted into two slab corners 10 which are opposed to each other. It is shaped like a hook to lose. The hook 112 has an outer portion formed in an obliquely inclined oblique shape and the inner portion has a hooked shape having a concave curved groove concave inward. Since the hook 112 is caught by the round bar-shaped hook bar 22 provided in the slab corner bracket 20, the drop beam 100 is interlocked according to the rotation of the hook 112 with respect to the hook bar 22. Can be rotated. The engaging bar 22 provided in the slab corner bracket 20 has a round rod structure to stably support the binding groove of the inner portion of the hook 112, and has a radius smaller than the radius of curvature of the binding groove of the inner portion of the hook 112. .

The support plate 114 forms a structure in which the first plate 114a and the second plate 114b are joined by a welding or coupling member or are integrally bent to form the first plate 114a and the second plate 114. It may have a structure, and a space in which the hook locker 116 may be installed is provided between the first plate 114a and the second plate 114b. A spacer 118 through which the inside of the hook locker 116 and the first plate 114a or the hook locker 116 and the second plate 114b is filled may be provided.

'자형 볼트(설명의 편의를 위해 이하 U-볼트라 함)(118)에 의해 고정된다. 후크락커(116)에는 U-볼트(118)가 삽입되기 위한 2개의 관통공(116a, 116b)이 마련되어 있고, 이에 대응하여 지지플레이트(114)에도 U-볼트(118)가 삽입되기 위한 2개의 관통공(120a, 120b)이 구비되어 있다. U-볼 트(118)의 장부(118a)와 단부(118b)가 지지플레이트(114)에 구비된 2개의 관통공(120a, 120b)을 관통하고 후크락커(116)에 구비된 2개의 관통공(116a, 116b)을 관통하게 되면, 후크락커(116)는 회동되지 못하고 고정되게 되며, U-볼트(118)의 둥근 부위를 잡아 당기면 U-볼트(118)의 단부(118b)는 후크락커(116)의 관통공(116b)에서 빠져 나오게 되므로 후크락커(116)는 U-볼트(118)의 장부(118a)에 의해서만 고정되어 있으므로 U-볼트(118)의 장부(118a)를 회전축으로 회동 가능하게 된다. 후크(112)가 걸림바(22)에서 탈착되는 것을 방지할 경우에는 후크락커(116)를 U-볼트(118)의 장부(118a)를 회전축으로 회동되게 하여 후크(112)에 의해 걸림바(22)를 감싸지 못하는 부분을 감싸게 한 다음 U-볼트(118)의 단부(118b)가 후크락커(116)의 제2 관통공(116b)에 삽입되게 하여 후크락커(116)를 고정한다. 후크(112)를 걸림바(22)에서 탈착하는 경우에는 U-볼트(118)의 둥근 부위를 잡아 잡아당겨서 U-볼트(118)의 단부(118b)가 후크락커(116)의 관통공(116b)에서 탈착되게 하고, 후크락커(116)를 U-볼트(118)의 장부(118a)를 회전축으로 회동되게 한 다음에 후크(112)가 걸림바(22)에서 탈착되게 한다. 스프링(118c)은 U-볼트(118)가 외력에 의해 당겨질 때 원상회복되도록 하는 탄성력을 발한다. 상기 스프링(118c)은 U-볼트(118)가 외력에 의해 잡아당겨지지 않을 때는 탄성력에 의해 후크락커(116)가 고정될 수 있고, U-볼트(118)의 둥근 부위에 외력이 가해져서 잡아당겨지면 U-볼트(118)의 단부(118b)는 후크락커(116)의 관통공(116b)에서 빠져나오고 후크락커(116)는 U-볼트(118)의 장부(118a)를 회전축으로 회동될 수 있어, 후크(112)가 걸림바(22)에서 탈착될 수 있다. The head part 110 may further include a hook locker 116 to prevent the hook 112 from being detached from the locking bar 22. The hook locker 116 has a hook 112 by wrapping the portion of the hook 112 that cannot be wrapped by the hook 112 when the hook 112 is attached to the hook bar 22 having a round rod shape. It serves to suppress detachment from the locking bar (22). The hook locker 116 is provided in the space formed by the support plate 114, and has a long book 118a and a short end 118b and a spring 118c attached to the book 118a.

It is secured by a 'shaped bolt (hereinafter referred to as U-bolt for convenience of explanation) 118. The hook locker 116 is provided with two through holes 116a and 116b for inserting the U-bolt 118, and correspondingly, two hooks for inserting the U-bolt 118 into the support plate 114 are also provided. The through holes 120a and 120b are provided. The tenon 118a and the end 118b of the U-bolt 118 pass through two through holes 120a and 120b provided in the support plate 114 and two through holes provided in the hook locker 116. When penetrating through 116a and 116b, the hook locker 116 is not rotated and fixed, and when the rounded portion of the U-bolt 118 is pulled out, the end 118b of the U-bolt 118 is hook locker ( Since the hook locker 116 is fixed only by the tenon 118a of the U-bolt 118, the hook locker 116 can be rotated about the rotational axis of the U-bolt 118 by the rotation axis. Done. When the hook 112 is prevented from being detached from the catching bar 22, the hook locker 116 is rotated by the hook 112 to rotate the tenon 118a of the U-bolt 118 to the rotating shaft. 22) to wrap the portion that cannot wrap and then secure the hook locker 116 by inserting the end 118b of the U-bolt 118 into the second through hole 116b of the hook locker 116. When the hook 112 is detached from the catching bar 22, the rounded portion of the U-bolt 118 is pulled out so that the end 118b of the U-bolt 118 is the through hole 116b of the hook locker 116. ), The hook locker 116 is rotated the dowel 118a of the U-bolt 118 to the rotation axis, and then the hook 112 is detached from the locking bar (22). The spring 118c exerts an elastic force that allows the U-bolt 118 to be reinstated when pulled by an external force. The spring 118c may be fixed to the hook locker 116 by the elastic force when the U-bolt 118 is not pulled by the external force, the external force is applied to the rounded portion of the U-bolt 118 When pulled out, the end 118b of the U-bolt 118 exits the through hole 116b of the hook locker 116 and the hook locker 116 rotates the tenon 118a of the U-bolt 118 about an axis of rotation. As such, the hook 112 may be detached from the catching bar 22.

The tie rod 130 is a rod-shaped structure connected to the support plate 114 of the head portion 110 and provided with a screw thread on the outer surface. The support plate 114 and the tie rod 130 may be coupled by welding or a coupling member.

The pivot pipe 140 has a cylindrical shape in which the through hole 142 is formed on the inner surface, and the outer circumferential surface may have a shape such as a square column, a hexagonal column, an octagonal column, a cylinder, etc., and thus a special shape is not required, It is preferable to have a square pillar shape. Since the through hole 142 provided in the pivot pipe 140 has a larger diameter than the thread of the tie rod 130, the through hole 142 may be raised or lowered along the tie rod 130 without being interrupted by the thread of the tie rod 130. have.

The spindle nut 150 prevents the lowered pivot pipe 140 from being lowered further. A knob 152, such as a faucet, is provided at one end of the spindle nut 150 to rotate the spindle nut 150 and move along the thread of the tie rod 130.

' 형태의 단면 구조를 가지며, 일정 거리 이격되어 대향하는 두 벽면거푸집(WP)의 상단부에 결합되게 구비되며, 대향하게 설치되는 두 슬라브코너(10)는 각각의 개구부(12)가 서로 대면되게 설치된다. 슬라브코너(slab corner)(10)에는 슬라브코너 브라켓(20)이 삽입되어 결착된다. The slab corner 10 is'

It has a cross-sectional structure of the form, is provided to be coupled to the upper end of the two opposite wall formwork (WP) spaced apart a certain distance, the two slab corners 10 to be installed facing each opening 12 is installed facing each other do. A slab corner bracket 20 is inserted into and bound at the slab corner 10.

One end of the slab corner bracket 20 is inserted into and coupled to the inner circumferential surface of the slab corner 20, and the other end protrudes into the opening of the slab corner 10. The slab corner bracket 20 is inserted into the inner circumferential surface of the slab corner 10 and fixed by the bracket upper and lower adjustment bolts 26. The hook 112 of the drop beam 100 is coupled so as to span the round bar-shaped engaging bar 22 of the slab corner bracket 20 protruding into the opening of the slab corner 10, and to the slab corner 10, respectively. The corresponding pair of slab corner brackets 20 are installed to face each other. The slab corner bracket 20 is provided with a catching bar 22 and a diagonal guide channel 24 providing a path through which the catching bar 22 is moved. The guide channel 24 has a structure penetrating diagonally to two opposing plates 26 protruding into the openings of the slab corner 1, and the two opposing plates 26 are joined by a welding or coupling member or the like. .

When the drop beam 100 is attached to the slab corner bracket 20, the catching bar 22 may be moved upward along the guide channel 24 by the oblique outer portion of the hook 112, and the hook 112 may be moved. When the outer portion of the hook is slightly lifted up over the catching bar 22, it is moved downward by its weight along the oblique guide channel 24 and caught with the inner portion of the hook 112 while moving the drop beam 100 slightly downward. By engaging the bar 22, the drop beam 100 can be easily attached to the slab corner bracket 20. That is, when the hook 112 is fastened to the catching bar 22, the catching bar 22 is pushed upward along the diagonal guide channel 24 by the circumferential portion 150 of the hook 112. After the outer portion 150 of the hook 112 passes through the guide channel 24 is lowered by the load, and the catching bar 22 is lowered to the lower portion of the guide channel 24 by the load. Ready to be engaged with the inner portion 150 of the hook (112). When the engaging bar 22 is hooked to the hook 112 of the drop beam 100, the drop beam 100 is maintained in a fixed state to the slab corner bracket (20).

The head portion 110 of the drop beam 100 is rotatably coupled to the slab corner bracket 20, and the pivot pipe 140 supports the slab panel SP to support the slab panel SP. It is coupled by a connecting bar 144 to.

The slab panel support beam 30 is a structure in which a plurality of rod-shaped connecting members 34 are inserted at intervals between two opposite plates 32a and 32b. The drop beam 100 is rotatably provided on the basis of the connecting bar 144 which binds the pivot pipe 140 and the slab panel support beam 30 to the pivot pipe 140 and the slab panel support beam 30. It is rotated with respect to the connecting bar 144 to be inserted and inserted into the space between the two plates 32a and 32b constituting the slab panel support beam 30, but is inserted into the space between the two plates 32a and 32b. It is blocked by the member 34 and can no longer be rotated. The connecting member 34 connecting the two plates 32a and 32b of the slab panel support beam 30 is no longer rotated when the drop beam 100 is rotated at an angle and inserted between the two plates 32a and 32b. It acts as a deterrent. The connecting bar 144 coupling the pivot pipe 140 and the slab panel support beam 30 serves to fix the drop beam 100 so as not to flow to the left and right sides when the drop beam 100 rotates. The connecting bar 144 coupling the pivot pipe 140 and the slab panel support beam 30 may be formed in a detachable pin shape, and the connecting bar 144 connects the pivot pipe 140 and the slab panel support beam 30 to each other. It can also be made in the form of permanently fixed by welding the connected parts by connecting. The pivot pipe 140 is rotated based on the connecting bar 144 that binds the slab panel support beam 30 to be inserted into a space between the two plates 32a and 32b constituting the slab panel support beam 30. When inserted into the space between the two plates (32a, 32b) it is blocked by the connecting member 34 can no longer be rotated.

Through hole for fixing the drop beam 100 to the slab panel support beam 30 when the drop beam 100 is inserted into the space between the two plates 32a and 32b constituting the slab panel support beam 30 ( 122 is provided in the head part 110, and the through hole (refer to 36 of FIG. 18 and FIG. 19) is also provided in the position of the slab panel support beam 30 corresponding to the through hole 122. As the fixing pin is inserted into the through hole 122 of the slab panel support beam 30 and the head part 110, the drop beam 100 is disposed between the two plates 32a and 32b constituting the slab panel support beam 30. Can be inserted into the space of the fixed. In this case, the drop beam 100 may be stably fixed to the slab panel support beam 30 through the connecting pin 144 formed in the fixing pin and the pivot pipe 140 passing through the through hole 122. . At this time, the head portion 110 is inserted into the space between the two plates (32a, 32b) constituting the slab panel support beam 30 only the portion connected to the tie rod 130 on the basis of the through-hole 122. do.

When dismantling the slab panel SP, the fixing pin fastened to the through hole 122 formed in the head part 122 and the through hole formed in the slab panel support beam 30 (see 36 of FIGS. 18 and 19). Desorption of the drop beam 100 allows the connecting bar 144 formed on the pivot pipe 140 to be rotated by the rotation axis, so as to fall out between the two plates (32a, 32b) constituting the slab panel support beam (30). Can come out.

The slab panel support beam 30 may be supported by the supporter S to safely support the loads of the structures such as the slab panel SP and concrete. The slab panel support beam 30 is supported by the supporter S, the slab panel SP is placed on the upper part of the slab panel SP, and the slab panel support beam 30 supports the slab panel SP. Play a role.

Hereinafter, referring to FIGS. 10 to 14, a method of installing the slab panel SP using the drop beam 100 and the slab panel support beam 30 according to an exemplary embodiment of the present invention will be described.

As shown in Figure 10, the opposing wall formwork (WP) is assembled to be spaced apart from each other at a certain distance to form a wall, the opposing wall formwork (WP) is flat across the space to form a wall Both ends of the flat tie 300a are joined by al-pins or bolts and nuts.

The flat tie 300a is formed of a flat panel having a predetermined length, and has a through hole for coupling to a wall formwork WP and an al-pin or bolts and nuts at both ends. In addition, the flat tie 300a is installed in multiple layers at a position corresponding thereto so as to install the wall formwork WP installed in multiple layers.

 Then, the slab corner 10 is installed on the upper wall formwork (WP) is installed in a multi-layer. Two opposite slab corners 10 are provided such that each of the openings 12 faces each other.

The slab corner bracket 10 is inserted into the slab corner bracket 20 for binding. One end of the slab corner bracket 20 is inserted and coupled to the inner peripheral surface of the slab corner 20, the other end is installed to protrude into the opening of the slab corner 10, the portion inserted into the inner peripheral surface of the slab corner 10 It is fixed to the slab corner 10 by the bracket up and down adjustment bolt 26.

The drop beam 100 (or pivot pipe 140) is inserted into a space between the two plates 32a and 32b constituting the slab panel support beam 30, and the drop beam 100 is inserted into the slab panel support beam 30. In order to fix the fixing pin to the through hole 122 formed in the head part 110 and the through hole 36 formed at the position of the slab panel support beam 30 corresponding thereto, the drop beam 100 and the slab are fixed. The panel support beam 30 is integrated. In this case, the drop beam 100 is fixed to the slab panel support beam 30 through the connecting pin 144 formed in the fixing pin and the pivot pipe 140 passing through the through hole 122 to be stably fixed and integrated. Can be. At this time, the head portion 110 of the drop beam 100 is only the portion that is connected to the tie rod 130 on the basis of the through-hole 122, the two plates 32a, 32b constituting the slab panel support beam 30 Will be inserted into the space between them.

As shown in FIGS. 11 and 12, the head 110 of the drop beam 100 is lifted up so as to span the engaging bar 22 of the slab corner bracket 20. When the drop beam 100 is attached to the slab corner bracket 20 and the diagonal outer portion of the hook 112 is lifted up while contacting the catching bar 22, the catching bar 22 moves upward along the guide channel 24. When moved, the outer portion of the hook 112 is slightly lifted above the catching bar 22 and is moved downward by its weight along the diagonal guide channel 24. By engaging the hook 112 of the drop beam 100 and slightly engaging the inner portion of the hook 112 and the catching bar 22, the drop beam 100 can be easily attached to the slab corner bracket 20. Can be. That is, when the hook 112 is fastened to the catching bar 22, the catching bar 22 is pushed upward along the diagonal guide channel 24 by the circumferential portion 150 of the hook 112. After passing through the outer portion 150 of the hook 112 is lowered down along the guide channel 24 by the load, when the locking bar 22 is lowered down the guide channel 24 by the load Ready to be engaged with the inner portion 150 of the hook (112). When the engaging bar 22 is hooked to the hook 112 of the drop beam 100, the drop beam 100 is maintained in a fixed state to the slab corner bracket (20). As the hook 112 is engaged with the engaging bar 22 of the slab corner bracket 20, the head portion 110 of the drop beam 100 rotates the engaging bar 22 of the slab corner bracket 20 with the rotation axis. It is possible.

As shown in FIG. 13, the supporter S is supported under the slab panel support beam 30 to support the load by weight.

As shown in FIG. 14, in order to prevent the hook 112 from being detached from the catching bar 22, the hook locker 116 surrounds the hook locker 116 that does not surround the catching bar 22 by the hook 112. The 112 is prevented from being separated from the locking bar 22. After the hook locker 116 wraps the portion of the hook bar 22 which cannot be wrapped by the hook 112, the dowel 118a and the end 118b of the U-bolt 118 are provided on the support plate 114. The hook locker 116 is fixed not to rotate by passing through the two through holes 120a and 120b and passing through the two through holes 116a and 116b provided in the hook locker 116.

The slab panel SP is installed on the slab panel support beam 30.

When the slab panel (SP) is installed, the concrete is placed and cured on top of the slab panel (SP) to make the desired concrete structure.

Hereinafter, a method of disassembling the slab panel SP using the drop beam 100 and the slab panel support beam 30 will be described with reference to FIGS. 15 to 19.

As shown in FIG. 15, the wall formwork WP is removed.

Wall formwork (WP) assembled in a multi-layer can be removed by disassembling the other wall formwork (WP) coupled to the top and bottom and the state of the flat tie 300a and the al-pin or bolts and nuts.

In addition, the wall formed with the wall formwork WP is removed from the wall with the flat tie 300a used for the installation of the wall formwork WP penetrating the wall while the end formed with the through hole used to assemble the wall formwork WP is protruded. Remaining.

The wall formwork WP was fastened with the upper slab corner 10 in the state where the flat tie 300a is installed. The slab corner 10 is provided with a supporting force by the wall formwork (WP) was installed on the bottom, but the support structure is weak when the wall formwork (WP) is removed.

Therefore, the slab corner fixing device which is coupled to the slab corner 10 to the upper side is coupled to the flat tie (300a) protruding the end while being fixed to the wall to reinforce the supporting force to the opposite slab corner 10 and the structure therebetween 300 is installed.

Detailed description of the slab corner fixing device 300 will be described later with reference to FIGS. 20 to 25.

Meanwhile, after the wall formwork WP is removed and the slab corner fixing device 300 is installed as described above, as shown in FIG. 16, the supporter S partially supporting the slab panel support beam 30 is removed. do.

The spindle nut 150 is rotated clockwise or counterclockwise to move along the thread of the tie rod 130, so that the spindle nut 150 is a predetermined distance (about 5 to 30 cm) from the pivot pipe 140. Spaced apart.

The fixing pin fastened to the through hole 122 of the head part 122 and the through hole 36 of the slab panel support beam 30 is removed. As a result, the drop beam 100 may rotate the connection bar 144 formed on the pivot pipe 140 with the rotation axis.

When the fixing pin fastened to the through hole 122 of the head part 122 and the through hole 36 of the slab panel support beam 30 is removed, the pivot pipe 140 falls down by the load, and the spindle nut The tie rod 130 at the portion 150 is drawn out between the two plates 32a and 32b constituting the slab panel support beam 30. As the pivot pipe 140 descends, the slab panel support beam 30 connected to the pivot pipe 140 by the connecting bar 144 also descends below a certain distance, and the slab panel support beam 30 falls below a certain distance. As the slab is dropped, the slab panel SP is also lowered by a certain distance by the load.

The pivot pipe 140 moves along the tie rod 130 by a distance spaced from the spindle nut 150, and the pivot pipe 140 is stopped by the spindle nut 150 at the position where the spindle nut 150 is located. As it is, it no longer descends and stops.

As shown in FIG. 17, the spindle nut 150 is rotated to move along the thread of the tie rod 130 so that the pivot pipe 140 gradually descends along the tie rod 130. As the pivot pipe 140 descends along the tie rod 130, the slab panel support beam 30 is also connected to the pivot pipe 140 by the connecting bar 144, so that the slab panel support beam 30 descends correspondingly. As the panel support beam 30 descends, the slab panel SP is also lowered by the load.

As shown in FIG. 18, the spindle nut 150 is moved along the thread of the tie rod 130 by a target distance, and accordingly, the pivot pipe 140, the slab panel support beam 30, and the slab panel ( SP) also goes down as much as you want.

As shown in FIG. 19, when the slab panel SP descends by a target distance, the slab panel SP is lowered from the slab panel support beam 30 to dismantle the slab panel SP.

In order to detach the hook 112 of the head portion 110 from the catching bar 22, the end portion 118b of the U-bolt 118 is pulled by the hook locker 116. It exits from the through hole 116b. When the end 118b of the U-bolt 118 comes out of the through hole 116b of the hook locker 116, the hook locker 116 is fixed only by the tenon 118a of the U-bolt 118. -The book 118a of the bolt 118 can be rotated by the rotation axis, the hook locker 116 is rotated by the weight of the book 118a of the U-bolt 118 by the rotation axis so as not to wrap the hook bar 22 I can't.

The hook 112 of the head 110 is slightly lifted up and detached from the catching bar 22 of the slab corner bracket 20. The hook 112 of the other part is also detached from the catching bar 22 of the slab corner bracket 20.

As described above, the slab panel SP can be easily installed or dismantled using the apparatus system for installing and dismantling the slab panel according to the preferred embodiment of the present invention.

Meanwhile, the slab corner fixing device installed on the wall surface of the lower slab corner 10 after disassembling the wall formwork WP will be described with reference to FIGS. 20 to 26.

20 is a perspective view of the slab corner fixing device 300, Figure 21 is an exploded perspective view of the slab corner fixing device 300, Figure 22 is a partially exploded perspective view of the slab corner fixing device 300. 23 to 25 are perspective views illustrating a method of fixing the slab corner 10 by fixing the slab corner fixing device 300 to the flat tie 300a. Figure 26 is a perspective view showing a state in which the Al-pin (AL) is fastened to the slab corner fixing device.

The slab corner fixing device 300 is a horizontal plate 310, a vertical plate 320 coupled to the bottom center portion thereof, and a reinforcing piece 330 formed at a portion where the horizontal plate 310 and the vertical plate 320 cross each other. ). And, between the bottom of the horizontal plate 310 and the end of the vertical plate 320, and between the two sides of the reinforcing piece 330 and the bottom of the horizontal plate 310 in contact with each side and the side of the vertical flat 320 Joining may be made by welding, the horizontal plate 310, the vertical plate 320 and the reinforcing piece 330 may be made of a metal material such as aluminum that can be welded.

The horizontal plate 310 is horizontally arranged and bonded using the upper slab corner 10 and al-pin and wedge (not shown), and combines the al-pin and wedge Through holes 312 are formed to be opposite to both sides with respect to the area where the vertical plate 232 is bonded.

The reinforcing piece 330 may have a right triangle shape in which two sides cross at right angles, and a plurality of reinforcing pieces 330 may be configured as necessary.

In addition, the vertical plate 320 has two or more through-holes 322 into which the flat tie 300a is inserted in the horizontal direction, and the Al-pins and wedges (not shown) in the direction crossing the through-holes 322. Through hole 324 is formed. That is, the flat tie 300a inserted into the through hole 322 in the horizontal direction is coupled to the vertical plate 320 by an al-pin inserted into the through hole 324. The vertical plate 320 may be combined with at least two flat ties 300a. In addition, the vertical plate 320 preferably has a length enough to include two or more flat ties 300a formed at a lower portion from the slab corner 10.

The vertical plate 320 includes vertical plate units 320a and 320b having symmetrical shapes as shown in FIG. 22. A recess 322a is formed in the vertical plate unit 320a to form a through hole 322 formed in the horizontal direction, and a recess 322a is formed in the vertical plate unit 320b having a shape symmetrical with the vertical plate unit 320a. The recessed portion 322b is formed at a position corresponding to. That is, the recess 322a of the vertical plate unit 320a and the recess 322b of the vertical plate unit 320b are combined to form the through hole 322.

In addition, a through hole 324a is formed at a side surface of the vertical plate unit 320a to form a through hole 324, and a through hole 324a is formed in the vertical plate unit 320b having a shape symmetrical with the vertical plate unit 320a. Through hole 322b is formed in a position corresponding to. That is, the through hole 324 is formed by communicating the through hole 324a of the vertical plate unit 320a and the through hole 324b of the vertical plate unit 320b.

In the state in which the wall formwork WP is removed, the wall surface is vulnerable without the lower structure of the slab corner 10 as shown in FIG. 23 and without the vertically supporting structure of the slab corner 10. 10a is a through hole formed in the bottom surface of the slab corner (10).

After the wall formwork WP is removed as shown in FIG. 23, the slab corner fixing device 300 according to the present invention is installed as shown in FIGS. 24 and 25.

The slab corner fixing device 300 is disposed such that the horizontal plate 310 abuts on the bottom surface of the slab corner 10, and the end of the flat tie 300a is inserted into the through hole 322 of the vertical plate 320. .

The slab corner fixing device 300 is fixed at its upper part by an al-pin and a wedge penetrating through the through hole 10a formed in the bottom surface of the slab corner 10 and the through hole 312 formed in the bottom surface and the horizontal plate 310. The end of the two or more flat ties 300a protruding from the wall and the vertical plate 320 are fixed to the wall by the Al-pin.

That is, the slab corner fixing device 300 has a structure for supporting the slab corner 10 of the upper portion by being fixed to the flat tie (300a) of the wall surface.

As described above, the slab corner fixing device 300 may fix the upper slab corner 10 after the wall formwork WP is removed, thereby preventing the upper slab panel or a structure including the same from falling down.

As mentioned above, although preferred embodiment of this invention was described in detail, this invention is not limited to the said embodiment, A various deformation | transformation by a person of ordinary skill in the art within the scope of the technical idea of this invention is carried out. This is possible.

1 is a perspective view illustrating a drop beam for installing and dismantling a slab panel according to a preferred embodiment of the present invention.

2 is an exploded perspective view illustrating a part of the drop beam exploded.

FIG. 3 is a perspective view schematically illustrating a state in which a drop beam is bound to a slab corner bracket installed on a partially cut slab corner; FIG.

Figure 4 is a perspective view showing the slab corner bracket is installed on the slab corner.

5 is a perspective view schematically illustrating a state in which a drop beam and a slab panel support beam are attached to a slab corner bracket.

6 is an exploded perspective view illustrating a part of the slab corner brackets disassembled.

7 and 8 are partial cross-sectional view schematically showing the hook and hook locker is attached to the engaging bar of the slab corner bracket.

FIG. 9 is a view schematically illustrating a state in which a slab panel is partially installed by using an apparatus system for installing and dismantling the slab panel.

10 to 14 are cross-sectional views illustrating a method of installing a slab panel by using an apparatus system for installing and dismantling the slab panel according to a preferred embodiment of the present invention.

15 to 19 are cross-sectional views illustrating a method of dismantling a slab panel using a device system for installing and dismantling the slab panel according to an exemplary embodiment of the present invention.

20 is a perspective view of the slab corner fixing device.

21 is an exploded perspective view of the slab corner fixing device.

22 is a partially exploded perspective view of the slab corner fixing device.

23 to 25 are perspective views illustrating a method of fixing a slab corner by fixing the slab corner fixing device to a flat tie.

Figure 26 is a perspective view showing a state in which the Al-pin (AL) is fastened to the slab corner fixing device.

<Explanation of symbols for the main parts of the drawings>

SP: Slab panel WP: Wall formwork

10: Slab corner 20: Slab corner bracket

30: slab panel support beam 100: drop beam

110: head portion 130: tie rod

140: pivot pipe 150: spindle nut

300: slab corner fixing device 300a: flat tie

310: horizontal plate 320: vertical plate

Claims (5)

A horizontal plate coupled to the lower slab corner where the wall formwork is removed to support the slab corner; A vertical plate coupled to two or more flat ties used for fixing the wall formwork exposed after the wall formwork is removed, and having vertical ends joined to the bottom of the horizontal plate; And Reinforcing pieces are joined to each corner that the horizontal plate and the vertical plate intersect, Side surfaces of the second through hole to couple the second through hole formed in a horizontal direction passing through the thickness of the main body to the flat plate and the flat tie inserted into the second through hole by Alpin. Slab corner fixing device that is formed through the third through hole formed through. The method of claim 1, The slab corner fixing device is formed in the horizontal plate formed with at least two first through-holes to form a combination of the lower portion of the slab corner and Al-pins and wedges. delete The method of claim 1, The vertical plate is composed of a pair of symmetrical vertical plate unit, Each vertical plate unit is a slab corner fixing device that is formed with a symmetrical groove to form the second through hole and a fourth through hole communicating with each other to form the third through hole. Removing the wall formwork after curing concrete in a state where a wall formwork and an upper slab panel and a slab corner configured at the side of the slab panel and the upper part of the wall formwork are assembled; The slab corner fixing device according to claim 1 is installed on the lower part of the slab corner from which the wall formwork has been removed while the bottom form of the slab corner is removed while the wall formwork is removed and then coupled to the end of the flat tie exposed to the wall. Doing; And A slab panel dismantling method using the slab corner fixing device according to claim 1, comprising disassembling the slab panel after the slab corner fixing device is installed.

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