KR102582723B1 - Wall structure using precast concrete double wall - Google Patents

Abstract

The present invention relates to a wall structure using a PC double wall in which a girder can be easily and quickly installed on the PC double wall, and the slab connected to the PC double wall can be integrated with the PC double wall through rigid coupling.
The wall structure using the PC double wall of the present invention connects a plurality of PC double walls made of unit members at right angles or at a predetermined angle, combines the upper and lower slabs, and combines corner walls at each corner to form a box or polygonal shape. In a wall structure formed by.
The PC double wall includes a first PC panel forming the inner wall of the wall, a second PC panel formed to face each other while maintaining a gap with the first PC panel, and forming the outer wall of the wall, and the first and second PC panels. It consists of an H-type PC double wall with a central connection connecting the central part of the panel,
The upper and lower ends of the first PC panel are shorter than the upper and lower ends of the second PC panel, and the first and second exposed reinforcing bars are formed on the inner surfaces of the upper and lower ends of the first PC panel and the upper and lower ends of the second PC panel. Each of these is exposed, and a wall structure is provided at the upper end of the first PC panel with a surface or bracket on which a PC girder or half PC slab installed to form a slab can be mounted.

Description

Wall structure using PC double wall {WALL STRUCTURE USING PRECAST CONCRETE DOUBLE WALL}

The present invention relates to a wall structure using a PC double wall, and more specifically, to a PC double wall in which girders can be easily and quickly installed on the PC double wall, and slabs connected to the PC double wall can be integrated through rigid joints. This is about a wall structure using a wall.

In general, underground structures such as water storage tanks, underground parking lots, underground roads, power outlets, utility outlets, etc. are constructed by forming a foundation floor after excavation work, then installing formwork on the foundation floor and pouring on-site concrete to construct a wall structure that forms the exterior wall. do. Then, concrete is poured at the top and bottom of the wall structure to form a slab.

When constructing a structure like this, formwork is installed, reinforcing bars and concrete are poured, and when the poured concrete is cured, the formwork is dismantled and reinstalled, and then another reinforcing bar arrangement and concrete are poured and the curing process is repeated to build the structure. Construction will be done.

However, the construction of these structures requires repeated installation and disassembly of the form, which takes a lot of work time and prolongs the construction period, resulting in high construction costs.

Therefore, PC double walls of a certain size in the form of panels are manufactured in advance using the precast concrete (PC) method at the factory, and these are transported to the construction site, facing each other on the floor, maintaining the gap. After installing the PC double walls by connecting them in two rows, pour in-situ concrete into the empty space of each PC double wall installed in two rows to form walls on both sides, and connect a PC girder or half PC slab between the PC double walls. The structure is being constructed by pouring in-situ concrete on the upper part to form a slab.

When using the PC Double Wall in this way, the PC Double Wall acts as a formwork during construction, and after construction is completed, it is integrated with the cast-in-place concrete poured inside to form the inner and outer sides of the structure.

When manufacturing this PC double wall, it can be manufactured in the form of an H shape by fixing it with a fixing member so that the inner and outer spacing of the sandwich-type PC double wall is maintained, or by connecting the middle with reinforced concrete.

However, since the conventional PC double wall pre-constructs the floor slab and then builds the wall on top of it, the gap between the floor slab and the wall is disconnected, making it very vulnerable to external forces. Therefore, in order to resist external forces and strengthen the composite force between the floor slab and the wall, the structure must be integrated by exposing a large amount of connecting reinforcing bars on the floor slab, and the wall will not fall over due to wind pressure or external shock until the upper slab is constructed. Separate measures must be taken to prevent this. As a result, unnecessary construction costs increase and the construction period also increases.

In addition, installing a PC girder for upper slab construction requires installing a separate column to support the girder, which has the disadvantage of lengthening the construction period.

In addition, since it is difficult to maintain the existing PC double wall in a self-supporting state, it must be fixed with separate supports to prevent it from falling due to wind or external force during construction.

Korean Patent Publication No. 10-1630235

The present invention was proposed to solve the conventional problems as described above. The purpose of the present invention is to enable quick and easy installation of the PC double wall, upper slab, and girder, and to rigidly combine the girder or slab connected to the PC double wall. It can be integrated with the PC double wall, and a fall prevention support is formed at the bottom of the first PC panel, so it can stand on its own without installing a separate support to support it when erecting the double wall during construction, and after the lower slab is installed. The aim is to provide a wall structure using a PC double wall that can prevent overturning even when wind or external force is applied to the PC double wall.

The wall structure using the PC double wall proposed by the present invention connects a plurality of PC double walls made of unit members at right angles or at a predetermined angle, combines the upper and lower slabs, and combines corner walls at each corner to form a box or In a wall structure formed in a polygonal shape.

The PC double wall includes a first PC panel forming the inner wall of the wall, a second PC panel formed to face each other while maintaining a gap with the first PC panel, and forming the outer wall of the wall, and the first and second PC panels. It consists of an H-type PC double wall with a central connection connecting the central part of the panel,

The upper and lower ends of the first PC panel are shorter than the upper and lower ends of the second PC panel,

First and second exposed reinforcing bars are exposed on the upper and lower ends of the first PC panel and the inner surfaces of the upper and lower ends of the second PC panel, respectively, and a PC girder or half installed at the upper end of the first PC panel to form a slab. Provides a wall structure formed with a surface or bracket on which a PC slab can be mounted.

In addition, the present invention relates to a wall structure in which a plurality of PC double walls made of unit members are connected in two rows along the longitudinal direction and the upper and lower slabs are combined to form an underpass.

The PC double wall includes a first PC panel forming the inner wall of the wall, and the first PC panel.

It consists of an H-type PC double wall formed to face each other while maintaining a gap with the panel and consisting of a second PC panel forming the outer wall of the wall and a central connection part connecting the central parts of the first and second PC panels,

The upper and lower ends of the first PC panel are shorter than the upper and lower ends of the second PC panel,

First and second exposed reinforcing bars are exposed on the upper and lower ends of the first PC panel and the inner surfaces of the upper and lower ends of the second PC panel, respectively, and a PC girder or half installed at the upper end of the first PC panel to form a slab. Provides a wall structure formed with a surface or bracket on which a PC slab can be mounted.

The first exposed reinforcing bar is exposed in the longitudinal direction at the lower end of the first PC panel, and the second exposed reinforcing bar is exposed in a direction perpendicular to the first exposed reinforcing bar on the inner side of the second PC panel.

A coupler is fastened to the end of the second exposed reinforcing bar, and an intermediate bracket is further formed in the middle part of the first PC panel so that a PC girder or half PC slab installed to form an intermediate slab can be mounted.

A hole is formed in the central connection portion so that the PC double wall made up of the unit members can be closely adhered to each other while connected, and an insert nut is inserted into the hole to insert a tension material such as a steel bar with threads on both ends through the insert nut. After joining, it is bolted to the other central connection.

Connecting reinforcing bars are exposed on the upper part of the part where the middle bracket of the first PC panel is formed so that the middle slab can be rigidly joined, and reinforcement parts are further formed on the bracket formed on the upper part of the first PC panel and the lower part of the middle bracket. .

The lower part of the first PC panel is made of a haunch, and a connecting reinforcing bar network is inserted into the space formed where the PC double walls are connected to each other, and in-situ concrete is poured, so that the adjacent PC double walls are integrated through rigid joints.

The fall prevention support is formed by extending the first exposed reinforcing bar equal to the length of the lower end of the second PC panel, or the cross section of the central connection part extended to the first PC panel surface or haunch is equal to the length of the lower end of the second PC panel. It is formed by extending it.

A connecting reinforcing bar protrudes from the fall prevention support, and this connecting reinforcing bar protrudes in a direction perpendicular to the exposed reinforcing bar formed in the first PC panel and is rigidly joined to the floor slab reinforcing bar.

In-situ concrete is poured into the space formed where the PC double walls made of the unit members are connected to each other, so that the adjacent PC double walls can be integrated through rigid joints.

When the PC double wall made of the unit members is connected, a tension member is inserted and fixed into the central connection portion so that the PC double wall can be closely adhered to and fixed to each other.

The corner wall is formed at an intersection and is connected to the side ends of the first PC panels on both sides forming the inner wall of the wall, and the corner inner wall is formed to face each other while maintaining a gap with the corner inner wall and forms the outer wall of the wall. It consists of a corner outer wall connected to the side end of the 2PC panel, and a central connection part connecting the corner inner wall and the central part of the corner outer wall, and the upper and lower ends of the corner inner wall are shorter than the upper and lower ends of the corner outer wall, At the upper end of the corner inner wall, a corner bracket is formed on which a PC girder or half PC slab installed to form a slab can be mounted, and at the upper and lower ends of the corner inner wall and the inner surface of the corner outer wall, exposed reinforcing bars of the corner inner wall and The exposed reinforcing bars on the corner exterior walls are each exposed.

The corner inner wall exposed reinforcing bars are exposed in the longitudinal direction of the corner inner wall, the corner outer wall exposed reinforcing bars are exposed in a direction perpendicular to the corner inner wall exposed reinforcing bars, and a coupler is fastened to the end of the corner outer wall exposed reinforcing bars.

A corner intermediate bracket is further formed in the middle portion of the corner inner wall so that a girder installed to form an intermediate slab can be mounted.

In addition, the present invention relates to a wall structure in which a plurality of PC double walls made of unit members are connected to form a box-shaped wall structure, and corner walls are connected at each corner,

The PC double wall includes a first PC panel forming the inner wall of the wall, a second PC panel formed to face each other while maintaining a gap with the first PC panel, and forming the outer wall of the wall, and the first and second PC panels. It is composed of an H-type PC double wall consisting of a central connection part connecting the center of the panel, and the upper ends of the first and second PC panels are made at the same height, so that when the PC double wall is installed in a stacked manner, they can be fixed to each other. Exposed reinforcing bars protrude from the upper ends of the first and second PC panels, and sleeves into which the exposed reinforcing bars can be inserted are formed at the lower ends, and a PC girder or half installed to form a slab is formed at the upper end of the first PC panel. A wall structure using a PC double wall with brackets on which a PC slab can be mounted is provided.

An intermediate bracket is further formed in the middle portion of the first PC panel so that a PC girder or half PC slab installed to form an intermediate slab can be mounted, and an intermediate bracket is formed on the upper part of the portion where the intermediate bracket of the first PC panel is formed. Connecting rebar is exposed so that the slab can be rigidly joined.

The wall structure using the PC double wall according to the present invention allows the PC double wall to be installed easily and quickly, significantly reducing construction costs, and a girder installed to form a slab by forming a bracket on the first PC panel constituting the PC double wall. You can install it quickly and simply.

In addition, the first and second exposed reinforcing bars are exposed at the upper and lower ends of the first PC panel and the second panel, respectively, so that they can be integrally connected to the slab reinforcing bars, so the separate reinforcement required to composite the wall and slab by rigidly combining the slab with the double wall is eliminated. Connecting rebar can be reduced.

In addition, a support bar to prevent falling is formed at the bottom of the first PC panel, allowing it to stand on its own without the need to install a separate support bar to support it when erecting the double wall during construction. After the lower slab is installed, the PC double wall is protected from wind or external forces. Even if applied, conduction can be prevented.

Figure 1 is a perspective view of a PC double wall provided in a wall structure using a PC double wall according to the first embodiment of the present invention.
Figure 2 is a side view of Figure 1.
Figure 3 is a perspective view of Figure 1 viewed from the top.
Figure 4 is a perspective view seen from the lower part of Figure 1.
Figure 5 is a view to explain that a reinforcement bar is provided at the lower part of the bracket of the PC double wall provided in the wall structure using the PC double wall according to the present invention.
Figure 6 is a perspective view of a corner wall provided in a wall structure using a PC double wall according to the present invention.
FIGS. 7 and 8 are views of the corner wall of FIG. 6 viewed from the top and bottom.
Figure 9 is a diagram for explaining the connection portion of the PC double wall provided in the wall structure using the PC double wall according to the present invention.
Figure 10 is a cross-sectional view of a wall structure using a PC double wall according to the second embodiment of the present invention, and is a partially enlarged cross-sectional view of the PC double wall in a stacked state.
Figure 11 is a perspective view of a PC double wall provided in a wall structure using a PC double wall according to the third embodiment of the present invention.
Figure 12 is a perspective view showing a wall structure forming an underpass using the PC double wall of Figure 11.
FIG. 13 is a plan view for explaining the connection portion of FIG. 12.
FIG. 14 is a plan view of the connected portion of the adjacent PC double wall of FIG. 13 in a fixed state.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

Figure 1 is a perspective view of a PC double wall provided in a wall structure using a PC double wall according to the present invention, Figures 2 to 4 are views of the PC double wall of Figure 1 viewed from the side, top, and bottom, and Figure 5 is a view of the PC double wall. It is a drawing to explain that a reinforcement bar is provided at the lower part of the bracket of the PC double wall of the present invention, Figure 6 is a perspective view of a corner wall provided in a wall structure using the PC double wall according to the present invention, and Figures 7 and 8 are of Figure 6 It shows a drawing of a corner wall viewed from the top and bottom.

As shown, the wall structure using the PC double wall according to the present invention connects a plurality of PC double walls (W) made of unit members, and a corner wall (C) is connected to each corner to construct a box-shaped wall structure. can be provided when

PC double wall (W) and corner wall (C) can be manufactured in the form of unit members with a predetermined size using reinforced concrete in a factory.

The PC double wall (W) is formed by opposing the first PC panel 100, which forms the inner wall of the wall, and the first PC panel 100, maintaining a gap between them, and the second PC panel, which forms the outer wall of the wall. It may be formed as an H-shaped PC double wall connected between the panel 200 and the first and second PC panels 100 and 200 with a central connection part 300.

The upper and lower ends of the first PC panel 100 are shorter than the upper and lower ends of the second PC panel 200, and a PC girder or half PC girder is installed at the upper end of the first PC panel 100 to form a slab. A bracket 102 is formed so that the slab can be mounted, and a fall prevention support 104 is formed at the lower end to prevent fall when the PC double wall (W) is installed.

The wall structure using the PC double wall according to the present invention can be constructed by connecting a plurality of PC double walls (W) and installing a corner wall (C) at each corner to construct a box-shaped wall structure. In this case, the PC double wall ( The structure can be completed by forming upper and lower slabs at the top and bottom of W).

At this time, a PC girder, not shown, is installed on the bracket 102 formed on the first PC panel 100 and an upper slab is formed on top of it, or a half PC slab, not shown, is installed on the bracket 102 and concrete is placed there. The upper slab can be formed by pouring, and can be installed quickly and easily by seating a PC girder or half PC slab on the bracket 102.

And the first and second exposed reinforcing bars 106 and 202 are exposed at the upper and lower ends of the first PC panel 100 and the inner upper and lower ends of the second PC panel 200, respectively, and these first and second exposed reinforcing bars are exposed. (106)(202) is rigidly connected to the slab reinforcement placed when forming the upper and lower slabs, and when concrete is poured, the PC double wall (W) is integrally connected to the upper and lower slabs in a rigid method, so it is structurally It is solidly formed.

One side of the first and second exposed reinforcing bars (106) (202) is embedded in the first and second PC panels (100) (200) and the other end is exposed, and the first exposed reinforcing bars (106) are connected to the first and second PC panels (100) and (200). It is exposed in the longitudinal direction of (100), and the second exposed reinforcing bar (202) is bent 90 degrees from the inner side of the second PC panel (200) toward the inside of the lower end of the second PC panel (200) to form the first exposed reinforcing bar (106). and is exposed in a direction perpendicular to the

Accordingly, the first and second exposed reinforcing bars 106 and 202 are exposed in a manner that crosses each other in a direction perpendicular to each other, thereby further increasing the binding force of the upper and lower slab reinforcing bars bound thereto.

In addition, a coupler 204 is fastened to the end of the second exposed reinforcing bar 202, so that the upper slab reinforcing bar can be easily and firmly fastened.

In this PC double wall (W), in addition to the upper and lower slabs, an intermediate slab can be formed in the middle part, and a PC girder is installed in the middle part of the first PC panel 100 to form an intermediate slab for use at this time. Alternatively, an intermediate bracket 108 is further formed so that the half PC slab can be mounted.

At the top of the part where the middle bracket 108 of the first PC panel 100 is formed, the connecting reinforcing bar 110 is exposed so that the middle slab can be rigidly joined, and this connecting reinforcing bar 110 is connected to the first PC panel ( 100), or in that state, the rear end extends further between the first and second PC panels (100) (200) and is subsequently connected between the first and second PC panels (100) (200). It can also be installed so that it can be combined with the poured in-situ concrete (302).

In the above, the connecting reinforcing bar 110 has been described as being exposed while being embedded and fixed in the first PC panel 100. However, this is not limited to this, and a hole through which the connecting reinforcing bar can penetrate is provided in the first PC panel 100. After forming and installing the first PC panel 100, it can be installed by inserting a separately manufactured connecting rebar into the hole.

In addition, a reinforcing portion 112 may be further formed on the lower side of the bracket 102 and the middle bracket 108 formed at the upper end of the first PC panel 100, and this reinforcing portion 112 may cause the bracket 102 ( 108), the reinforcing power can be further increased when a girder is installed.

In addition, the lower part of the first PC panel 100 may be formed of a haunch 114, and a fall prevention support 104 is formed on this haunch 114, so that the fall prevention support 104 can extend up to 1 PC panel 100 or The PC Double Wall (W), which protrudes toward the front, is designed to be self-supporting and stably maintain its installed state without the need for separate support materials, etc.

The fall prevention support 104 may be formed by extending the first exposed reinforcing bar 106 to the same length as the lower end of the second PC panel 200.

Additionally, the support for preventing fall may be formed by extending the central connection portion 300 to the bottom surface of the first PC panel 100 or the haunches 114 to be the same as the length of the bottom portion of the second PC panel 200.

The central connection part 300 connecting the first and second PC panels 100 and 200 may be made of reinforced concrete, and this central connection part 300 is the central connection part 300 of the first and second PC panels 100 and 200. It can be formed along the middle part.

When forming a wall structure using such a PC double wall (W), a side wall structure on one side can be formed by connecting the side end of another PC double wall to the side end of the PC double wall (W), and in this way, one side of the wall structure can be formed. The interior between the first and second PC panels 100 and 200 of the continuous PC double wall (W) is formed as a space, and in-situ concrete 302 is poured into this space to form adjacent PC double walls (W). It can be synthesized as a whole.

In addition, an insert nut is purchased and a hole is formed in the central connection part 300 so that the adjacent PC double walls (W) can be closely adhered to each other while the PC double wall (W) composed of unit members is connected, and the city map is placed in this hole. It can be fixed by inserting a tension member and fastening a fixing member such as a nut to both ends.

At this time, if the reinforcing bar network 304 is further installed in the space between the first and second PC panels 100 and 200 of the continuous PC double wall (W) and the in-situ concrete 302 is poured, the connection part becomes structurally more robust. It can be joined to form a sturdy wall structure.

In addition, in order to improve the bonding strength of the in-situ concrete (302) poured in the space between the first and second PC panels (100) (200) of the connected PC double wall (W), the first and second PC panels (100) (200) The facing side may not be straight, but may be shaped like a wave or sawtooth.

In this way, a box-shaped wall structure can be formed by connecting a plurality of PC double walls (W) made of unit members. In this case, a corner wall (C) is connected to the corner at the end of each wall.

The corner wall (C) includes a corner inner wall 400 and a corner outer wall 500 connected to each side end of the first and second PC panels 100 and 200 connected in orthogonal directions, and a corner inner wall 400 and a corner outer wall. It consists of a central connection part (600) connecting (500).

The upper and lower ends of the corner inner wall 400 are shorter than the upper and lower ends of the corner outer wall 500, and at the upper end of the corner inner wall 400 is a corner bracket 402 on which a girder installed to form a slab can be mounted. is formed, and the corner inner wall exposed reinforcing bars 404 and the corner outer wall exposed reinforcing bars 502 are exposed at the upper and lower ends of the corner inner wall 400 and the inner surface of the corner outer wall 500, respectively.

The exposed reinforcing bars 404 and 502 formed on the corner inner wall 400 and the corner outer wall 500, respectively, are provided to connect with the slab reinforcing bars placed when forming the upper and lower slabs, so that the corner wall (C) is formed on the upper and lower slabs. , It is structurally strong because it is integrally connected to the lower slab using a rigid method.

One side of the exposed reinforcing bars (404) and (502) is embedded in the corner inner and outer walls (400 and 500) and the other end is exposed, and the corner inner wall exposed reinforcing bars (404) are exposed in the longitudinal direction of the corner inner wall (400). , the corner outer wall exposed reinforcing bar 502 is bent 90 degrees in the inner direction of the corner outer wall 500 and is exposed in a direction perpendicular to the corner inner wall exposed reinforcing bar 404.

Accordingly, the corner inner and outer wall exposed reinforcing bars 404 and 502 are exposed in a form that crosses each other in a direction perpendicular to each other, thereby further increasing the binding force of the upper and lower slab reinforcing bars bound thereto.

In addition, a coupler 504 is fastened to the end of the corner exterior wall exposed reinforcing bar 502, so that the upper and lower slab reinforcing bars can be easily and firmly fastened.

In this corner wall (C), in addition to the upper and lower slabs, an intermediate slab can be formed in the middle part. A girder installed to form an intermediate slab can be mounted in the middle part of the corner inner wall (400) for use at this time. An intermediate bracket 406 is further formed to allow.

In the upper part of the corner inner wall 400 where the middle bracket 406 is formed, a connecting reinforcing bar may be exposed so that the middle slab can be rigidly joined, and one end of this connecting reinforcing bar is embedded in the corner inner wall 400. It can be fixed.

And when pouring concrete in the space between the connected corner wall (C) and the PC double wall (W), the central connection of the PC double wall (W) is made so that the corner wall (C) can remain connected without being pushed out. A hole can be formed in (300) and the corner wall (C), a tension member (not shown) can be inserted into this hole, and both ends can be fixed by fastening a fixing member such as a nut.

Although it has been described above that a box-shaped wall structure is formed by connecting the PC double walls (W) at right angles, a polygon-shaped wall structure can also be formed by connecting the PC double walls (W) at an obtuse angle.

Figure 9 is a plan view of the connecting portion of the PC double wall provided in the wall structure using the PC double wall according to the present invention. To form a wall structure using the PC double wall (W), the PC double wall (W) A wall on one side can be formed by continuously connecting a plurality of PC double walls (W) by connecting the side ends of another PC double wall to the side end of .

The PC double wall (W), which is continuous with each other in this way, can stably maintain a self-supporting installed state without the need to separately install support materials, etc., due to the fall prevention support 104.

And the interconnected PC double wall (W) is formed as a space between the first and second PC panels (100) and (200) closed on both sides by a central connection portion (300), and a reinforcing bar network (304) is installed in this space. When installed and pouring the in-situ concrete (302), the PC Double Wall (W) can form a wall structure with the connecting parts integrated into one piece.

In the wall structure formed in this way, the first PC panel 100 forms the inner wall of the wall, and the second PC panel 200 forms the outer wall of the wall.

In this way, a box-shaped wall structure can be formed by connecting a plurality of PC double walls (W) made of unit members, and by connecting a corner wall (C) at the corner at the end of each wall. .

And while forming the wall structure in this way, a PC girder or half PC slab (not shown) is installed on the bracket 102 formed on the first PC panel 100, and the upper and lower ends of the first PC panel 100 and the second The first and second exposed reinforcing bars 106 and 202 formed at the upper and lower ends of the inner side of the PC panel 200, and the exposed reinforcing bars 404 formed on the inner corner wall 400 and the outer corner wall 500 of the corner wall (C). When forming the upper and lower slabs at (502), the slab reinforcing bars to be placed are bound and reinforced, and then in-situ concrete is poured to form the upper and lower slabs.

In addition, to form a middle slab in addition to the upper and lower slabs in the PC double wall (W), bind the middle slab reinforcing bar to the connecting reinforcing bar (110) formed on the upper side of the middle bracket (108), and attach the middle bracket (406) of the corner wall (C). ) to mount the girder, install the form, and pour on-site concrete to prepare the intermediate slab.

Figure 10 is a diagram for explaining a second embodiment of a wall structure using a PC double wall according to the present invention. In the second embodiment of the present invention, only different parts are explained compared to the first embodiment described above, and the same parts are shown. is replaced with the description of the first embodiment.

As shown, in the second embodiment of the present invention, it can be used when installing the PC double wall (W) and the corner wall (C) in a stacked manner.

At this time, the upper ends of the first and second PC panels 100 and 200, which make up the PC double wall (W), and the corner inner wall 400 and the corner outer wall 500, which make up the corner wall C, are at the same height. It comes true.

In addition, exposed reinforcing bars (116) (206) are protruded at the upper ends of the first and second PC panels (100) (200) so that they can be fixed to each other when installing the PC double wall in a stacked manner, and the exposed reinforcing bars (116) (206) are protruded at the lower ends of the first and second PC panels (100) (200). Sleeves (118) (208) into which (116) (206) can be inserted are formed.

In addition, a water stop plate 306 is embedded in the upper part of the central connection part 300 to block moisture from flowing into the laminated part, and a water stop plate groove 308 into which the water stop plate 306 is inserted is located in the lower part of the central connection part 300. is formed

11 to 14 are diagrams for explaining a wall structure using a PC double wall according to a third embodiment of the present invention. In the third embodiment of the present invention, only the different parts are explained compared to the first embodiment described above. and the same parts are replaced with the description of the first embodiment.

As shown, the third embodiment of the present invention is a drawing to explain the wall structure formed when constructing an underpass using a PC double wall, and the construction of a one-story underpass is taken as an example. If you are building an underpass consisting of two floors or multiple floors, you can use the PC double wall of the first and second embodiments.

That is, the PC double wall (W) according to the third embodiment of the present invention may omit the brackets 102, 108 and the haunches 114 formed on the first PC panel 100 of the first embodiment.

This PC double wall (W) can be used to form a wall structure that constitutes an underpass, and the side end of another PC double wall can be connected to the side end of the PC double wall (W) to form one wall of the underpass. Structures can be formed.

At this time, the interior between the first and second PC panels 100 and 200 of the continuous PC double walls (W) is formed as a space, and in-situ concrete is poured into this space to unite the adjacent PC double walls (W). It can be synthesized with In addition, insert nuts 310 and holes 312 are installed in the central connection part 300 in the vertical direction so that the adjacent PC double walls (W) can be brought into close contact with each other while the PC double wall (W) composed of unit members is connected. ) are formed respectively, and in these holes 312, threaded portions are formed at both ends as shown in FIGS. 13 and 14, and a tension member 314 made of a steel bar is inserted and the tip of the tension member 314 is inserted into the insert nut formed on the PC double wall (W) on one side. By fastening to (310) with a screw fastener, inserting a washer (316) into the other end and screwing the nut (318), two PC double walls (W) adjacent to each other can be integrally fixed to each other.

In this way, all PC double walls (W) forming one side of the wall structure installed continuously along the longitudinal direction can be rigidly fixed and integrated.

And when the in-situ concrete (302) is poured in the space between the first and second PC panels (100) and (200) of the continuously connected PC double walls (W), the PC double walls (W) are more firmly joined, thereby forming the underpass. The wall structure on one side can be completed, and the wall structure on the other side of the underpass can be constructed in the same way.

In addition, a PC girder (not shown) or a half-PC slab is installed on the top surface of the first PC panel 100 and the upper and lower ends of the first PC panel 100 and the inner side of the second PC panel 200 are installed. When slab reinforcement is connected to the first and second exposed reinforcement bars (106) (202) formed at the bottom and concrete is poured, the upper and lower slabs are connected to the upper and lower ends of the wall structure on both sides made of PC double wall (W). A roadway is formed.

In the above, preferred embodiments of the present invention are described for illustrative purposes, but are not limited thereto, and various modifications may be made within the scope of the claims, the detailed description of the invention, and the accompanying drawings.

100, 200: PC panel
102, 108, 406: bracket
104: Support for preventing fall
106, 116 202, 206, 404, 502: exposed rebar
110: Connecting rebar
112: reinforcement part
114: Haunch
118, 208: sleeve
204, 504: Coupler
300, 600: Central connection
302: In-situ concrete
304: rebar mesh
306: Water stop plate
308: Water stop plate groove
310: insert nut
312: Hall
314: tension material
316: Washer
318: nut
400: Corner inner wall
500: Corner exterior wall

Claims (19)

A wall structure using a PC double wall formed in a box shape or polygonal shape by connecting a plurality of PC double walls made of unit members at right angles or at a predetermined angle, combining the upper and lower slabs, and combining corner walls at each corner. ,
The PC double wall includes a first PC panel forming the inner wall of the wall, a second PC panel formed to face each other while maintaining a gap with the first PC panel, and forming the outer wall of the wall, and the first and second PC panels. It consists of an H-type PC double wall with a central connection connecting the central part of the panel,
The first and second PC panels and the central connection part constituting the H-type PC double wall are connected to each other to form an integrated unit.
The upper and lower ends of the first PC panel are shorter than the upper and lower ends of the second PC panel,
First and second exposed reinforcing bars are exposed on the upper and lower ends of the first PC panel and the inner surfaces of the upper and lower ends of the second PC panel, respectively, and a PC girder or half installed at the upper end of the first PC panel to form a slab. A surface or bracket on which the PC slab can be mounted is formed,
A support for preventing falling is formed at the lower end of the first PC panel for independence during construction of the wall structure,
The fall prevention support extends the first exposed reinforcing bar to the same length as the lower end surface of the second PC panel, and also extends the central connection section to the first PC panel surface or haunch to the lower end surface of the second PC panel. A wall structure using a PC double wall constructed in the same extended form. In a wall structure using a PC double wall, which connects a plurality of PC double walls made of unit members in two rows along the longitudinal direction and combines the upper and lower slabs to form an underpass,
The PC double wall includes a first PC panel forming the inner wall of the wall, a second PC panel formed to face each other while maintaining a gap with the first PC panel, and forming the outer wall of the wall, and the first and second PC panels. It consists of an H-type PC double wall with a central connection connecting the central part of the panel,
The first and second PC panels and the central connection part constituting the H-type PC double wall are connected to each other to form an integrated unit.
The upper and lower ends of the first PC panel are shorter than the upper and lower ends of the second PC panel,
First and second exposed reinforcing bars are exposed on the upper and lower ends of the first PC panel and the inner surfaces of the upper and lower ends of the second PC panel, respectively, and a PC girder or half installed at the upper end of the first PC panel to form a slab. A surface or bracket on which the PC slab can be mounted is formed,
End double walls are connected to the ends of each row of the H-type PC double walls connected along the longitudinal direction,
A support for preventing falling is formed at the lower end of the first PC panel for independence during construction of the wall structure,
The fall prevention support extends the first exposed reinforcing bar to the same length as the lower end surface of the second PC panel, and also extends the central connection section to the first PC panel surface or haunch to the lower end surface of the second PC panel. A wall structure using a PC double wall constructed in the same extended form. delete In claim 1 or 2,
The first exposed reinforcing bar is exposed in the longitudinal direction of the first PC panel, and the second exposed reinforcing bar is exposed in a direction perpendicular to the first exposed reinforcing bar on the inner side of the second PC panel. The wall structure used. In claim 1 or 2,
A wall structure using a PC double wall, characterized in that a coupler is fastened to the end of the second exposed rebar. In claim 1 or 2,
A wall structure using a PC double wall, characterized in that an intermediate bracket is further formed in the middle part of the first PC panel to support a PC girder or half PC slab installed to form an intermediate slab. In claim 6,
A wall structure using a PC double wall, characterized in that connecting reinforcing bars are exposed at the upper part of the portion where the middle bracket of the first PC panel is formed so that the middle slab can be rigidly joined, or a hole is formed into which the connecting reinforcing bars can be inserted. . In claim 6,
A wall structure using a PC double wall, characterized in that a reinforcement part is further formed on the lower part of the bracket and the middle bracket formed on the upper part of the first PC panel. In claim 1,
A wall structure using a PC double wall, characterized in that the lower part of the first PC panel is made of a haunch. In claim 1 or 2,
A wall structure using a PC double wall, characterized in that a connecting reinforcing bar network is inserted into the space formed in the portion where the PC double walls are connected to each other, and in-situ concrete is poured, so that the adjacent PC double walls are integrated by rigid joints. delete In claim 1 or 2,
A wall structure using a PC double wall, characterized in that a tension member is inserted and fixed in the central connection so that the PC double wall composed of the unit members can be closely adhered and fixed to each other in the connected state. In claim 1,
The corner wall includes a corner inner wall connected to the side ends of the first PC panels on both sides that intersect and form the inner wall of the wall,
A corner outer wall formed to face each other while maintaining a gap with the corner inner wall and connected to the side ends of the second PC panels on both sides forming the outer wall of the wall, respectively;
It consists of a central connection connecting the corner inner wall and the corner outer wall,
The upper and lower ends of the corner inner wall are shorter than the upper and lower ends of the corner outer wall,
A corner bracket is formed at the upper end of the corner inner wall on which a PC girder or half PC slab installed to form a slab can be mounted,
A wall structure using a PC double wall, characterized in that exposed reinforcing bars of the corner inner wall and exposed reinforcing bars of the corner outer wall are exposed at the upper and lower ends of the corner inner wall and the inner surface of the corner outer wall, respectively. In claim 13,
A wall structure using a PC double wall, characterized in that the corner inner wall exposed reinforcing bars are exposed in the longitudinal direction of the corner inner wall, and the corner outer wall exposed reinforcing bars are exposed in a direction perpendicular to the corner inner wall exposed reinforcing bars. In claim 14,
A wall structure using a PC double wall, characterized in that a coupler is fastened to the end of the exposed reinforcement of the corner exterior wall. In claim 13,
A wall structure using a PC double wall, characterized in that a corner intermediate bracket is further formed in the middle part of the corner inner wall so that a PC girder or half PC slab installed to form an intermediate slab can be mounted.

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