KR20230142117A - Connection structure of pc wall using loop bar and lacer bar - Google Patents

Abstract

The present invention relates to a connection structure of PC walls using vertically arranged loop bars and joint bars. More specifically, when connecting PC walls, the loop bars are placed vertically on the side of the PC wall to construct the PC walls vertically. PC using vertically arranged loop roots and joint bars to improve structural performance by ensuring that the loop roots of adjacent PC walls are easily restrained by each other by using joint bars to prevent interference between members. It is about the connection structure of the wall.
In a preferred embodiment of the present invention, in the width direction connection structure between PC walls, the PC wall is formed at one or both ends in the width direction with a central portion protruding from the front and rear sides, respectively, with a front end and a rear end. Between a pair of finishing ridges, a ⊃-shaped loop root is vertically arranged and embedded in the inside of the PC wall so that it protrudes a certain length longer than the finishing ridge at regular intervals in the height direction, and the front closing ridge is located at each position where the loop root is formed. A through hole is formed by penetrating through, and when connecting the PC walls in the width direction, the finishing ridge is faced with the finishing ridge of the adjacent PC wall to form a space inside, and the loop roots of both PC walls intersect each other inside the space. It is formed by inserting a joint bar through a through hole in the front finish and then filling the inside of the space with mortar.

Description

Connection structure of PC wall using vertically arranged loop roots and joint bars {CONNECTION STRUCTURE OF PC WALL USING LOOP BAR AND LACER BAR}

The present invention relates to a connection structure of PC walls using vertically arranged loop bars and joint bars. More specifically, when connecting PC walls, the loop bars are placed vertically on the side of the PC wall to construct the PC walls vertically. PC using vertically arranged loop roots and joint bars to improve structural performance by ensuring that the loop roots of adjacent PC walls are easily restrained by each other by using joint bars to prevent interference between members. It is about the connection structure of the wall.

In general, the joints of PC walls are generally representative of the standard hook anchoring rebar joint method, which applies horizontal wire loops in the form of rings that protrude in the horizontal direction or applies a hook-shaped protruding structure, and this is done on the sides of the wall on both sides. The wire loop or hook bar is made to protrude, overlapped, and then the vertical joint rebar is inserted vertically.

However, in the case of such wire loops or hooks, they cannot be applied to narrow walls, and since wire loops and hooks require overlapping sections to be formed between adjacent walls, there was a problem of interference between members during wall assembly. This is a connection structure that makes it difficult to secure integrity between walls.

Specifically, as shown in FIGS. 5 and 6, when the wire loop 950 is configured horizontally on the side of the wall 910, the reinforcing bar 1 for wall installation is installed vertically in advance at the location where the wall is to be constructed, A sleeve (3) is formed on the lower surface of the wall, and the wall (910) is erected vertically so that the wall installation reinforcing bar (1) is inserted into the sleeve (3), and then the sleeve (3) is filled with non-shrink mortar. In addition, the reinforcing bar (2) for connecting the vertical joint reinforcing bar (960) is installed in advance at the joint of the wall (910), and then the adjacent wall (910) is constructed in succession. In this case, the sleeve (3) for wall installation is installed in advance. Although the wall 910 must be constructed vertically so that the reinforcing bar 1 can be inserted, as shown, the gap between the wire loops 950 in the section d where the wire loops 950 between adjacent walls 910 overlaps There was a problem that interference occurred, making it virtually impossible to construct the wall 910 vertically.

In addition, the vertical joint reinforcing bar 960 must be inserted vertically into the central part where the wire loops 950 on both sides overlap at the connection between the walls 910, but this has a problem in that it is difficult to select an accurate position because it is difficult to stand on its own.

The technology behind the present invention includes Patent Registration No. 1867300, “Coupling Structure of Prefabricated Shear Walls” (Patent Document 1). In the above background technology, 'a plurality of precast concrete walls with one or more connecting reinforcing bars exposed on the side; Anchorage bars placed across the connecting bars of adjacent precast concrete walls; and cast-in-place concrete filled between adjacent precast concrete walls and poured on site to surround the connecting reinforcing bars and the anchoring reinforcing bars, wherein the connecting reinforcing bars have a ring shape with a closed space formed therein, and some of the It is embedded in a precast concrete wall, and is installed perpendicular to the ground so that the closed space is visible from the front, and connecting reinforcing bars protruding toward each other from adjacent precast concrete walls are arranged so that the internal closed spaces overlap each other, The anchoring reinforcing bars are located horizontally across the overlapping closed space, the connecting reinforcing bars are embedded in the precast concrete wall at two or more locations at different heights, and a plurality of anchoring reinforcing bars are disposed on each of the connecting reinforcing bars having different heights. We propose a 'joint structure of prefabricated shear walls, which is characterized by forming a set by being connected to column reinforcing bars arranged in the longitudinal direction.'

However, the above background technology also had problems in that interference between members occurred and it was difficult to select an accurate position because it was difficult for the vertical reinforcing bars to stand on their own.

Patent Registration No. 1867300 “Coupling structure of prefabricated shear wall”

The present invention is intended to solve the above problems. By constructing the loop roots of the side joints of the PC wall, interference between members does not occur even when the PC wall is constructed vertically, and it is easy to restrain the loop roots between adjacent PC walls. The purpose is to provide a connection structure for PC walls that not only enables integrated movement but also improves structural performance.

The present invention relates to a width-direction connection structure between PC walls, wherein the PC wall is formed at one or both ends in the width direction with a central portion protruding from the front and rear sides, respectively, and a pair of finishing ridges. The ⊃-shaped loop root is vertically arranged and embedded in the interior of the PC wall so that it protrudes a certain length longer than the closing ridge at regular intervals in the height direction, and the front closing ridge penetrates each position where the loop muscle is formed, creating a through hole. It is formed by being perforated, and when connecting PC walls in the width direction, the finishing ridge is formed by the finishing ridges of adjacent PC walls facing each other to form a space inside, and the loop roots of both PC walls intersect each other inside the space, and the front end is finished. The purpose is to provide a connection structure for PC walls using vertically arranged loop muscles and joint bars, which is characterized by inserting the joint bar through the through hole of the jaw and then filling the inside of the space with mortar.

In addition, it is intended to provide a connection structure for PC walls using vertically arranged loop roots and joint bars, wherein the loop roots are formed in a pair by being spaced a certain distance in the horizontal direction at the same height.

In addition, the loop muscle installed on one side of the PC wall is configured eccentrically toward the rear of the PC wall, and the loop muscle installed on the other side of the PC wall is configured eccentrically toward the front of the PC wall. The purpose is to provide a connection structure for PC walls using a dragon bar.

In addition, it is intended to provide a connection structure for PC walls using vertically arranged loop roots and joint bars, characterized in that a sealing backup material is formed between the PC wall and the end of the finishing ridge facing the PC wall.

In addition, the locking bar, which is composed of a vertical bar and a ⊃-shaped latch ring whose ends are welded at regular intervals in the height direction of the vertical bar, is installed so that the through hole of the front finish of the PC wall matches the latch ring. The purpose is to provide a connection structure for a PC wall using vertically arranged loop bars and joint bars, which is constructed by welding vertical bars to the.

In addition, the joint bar is intended to provide a connection structure for a PC wall using a vertically arranged loop root and a joint bar, characterized in that studs with threaded ends are assembled on both sides with nuts.

In addition, the PC wall has a connection structure using vertically arranged loop roots and joint bars, characterized in that the shear key is formed integrally with the PC wall by protruding at a certain height at the end between the front and rear end ledges. We would like to provide

In addition, it is intended to provide a connection structure for PC walls using vertically arranged loop bars and joint bars, characterized in that shear key reinforcing bars are each embedded in the horizontal direction at the portion where the shear key is formed.

In addition, the shear key reinforcement consists of a horizontal bar of a certain length and a plate-shaped head part joined to the end of the horizontal bar, and the head part is configured to match the outer end of the shear key using a vertically arranged loop bar and a joint bar. The purpose is to provide a connection structure for PC walls.

The connection structure of the PC wall using vertically arranged loop bars and joint bars of the present invention places the loop bars vertically on the side of the PC wall when connecting PC walls, causing interference between members even when constructing the PC wall vertically. This has the very useful effect of improving structural performance by ensuring that the loop roots of adjacent PC walls are easily restrained by each other using joint bars, allowing them to move as one unit.

In addition, when manufacturing a PC wall, the locking bar, which forms a latch ring, is previously joined to the loop root, so that it is fixed across the latch ring when installing the joint bar, thereby enabling installation in an accurate position.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention along with the detailed description of the invention. Therefore, the present invention is limited to the matters described in the attached drawings. It should not be interpreted as limited.
Figure 1 is a plan view showing the connection structure of a PC wall using vertically arranged loop roots and joint bars of the present invention.
Figure 2 is a partial enlarged perspective view showing the installation structure of the n-type vertical joint reinforcing bar of the present invention.
Figures 3 and 4 are cross-sectional views of Figure 1c.
Figure 5 is a plan view showing a conventional PC wall joint connection structure.
Figure 6 is a diagram schematically showing the construction sequence of a conventional PC wall joint connection structure.

Below, the present invention will be described in detail with reference to embodiments shown in the attached drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to preferred embodiments.

Figure 1 is a plan view showing the connection structure of a PC wall using vertically arranged loop bars and joint bars of the present invention, and Figure 2 is a partial enlarged perspective view showing the installation structure of the n-type vertical joint reinforcing bar of the present invention. Figures 3 and 4 are cross-sectional views of Figure 1c.

The present invention provides a width direction connection structure between the PC wall 10 and the PC wall 10, as shown in FIG. 1.

As shown in FIGS. 1 to 4, the PC wall 10 of the present invention is composed of reinforcing bars 190, etc., and has a pair of finishing protrusions 110 and 120 at both ends to protrude from the front and rear, respectively. ) is configured so that when connecting the PC wall 10, the outer ends of the finishing ridges 110 and 120 of the PC wall 10 and the PC wall 10 face each other. A space 150 is formed between (10).

The PC wall 10 in the present invention is formed with a front end ridge 110 and a rear end 120 protruding at the front and rear ends, respectively, at the center portion at one or both ends in the width direction, and the central portion of the end is recessed. has

In the present invention, the loop root 20 is configured to protrude from the width direction end of the PC wall 10. In this case, the loop root 20 is installed in a vertical direction, that is, in a straight line on the plane, so that the width between the PC walls 10 This is to prevent interference between the vertically arranged loop roots 20 during directional jointing.

As shown, the loop root 20 has a certain length longer than the closing ridges 110 and 120 at regular intervals in the height direction of the PC wall 10 at the end between the pair of closing ridges 110 and 120. The end is embedded so as to protrude, and the overall shape has a ⊃ shape.

In particular, the loop roots 20 may be configured only one at the same height, but as shown, each pair may be configured at the same height and spaced a certain distance in the horizontal direction. Constructing the loop roots 20 in pairs in this way allows the joining bar 50, which will be described later, to penetrate the loop roots 20 and enable stable installation during installation.

Since the loop roots 20 are arranged vertically and are formed in a straight line on the plane, when connecting in the width direction between PC walls 10, they can be installed slightly staggered from the loop roots 20 of adjacent PC walls 10, and the PC walls 10 When manufacturing (10), the loop root 20 installed on one side of the PC wall 10 is configured to be eccentric to the rear of the PC wall 10, and the loop root 20 installed on the other side of the PC wall 20 is By being configured to be eccentric in front of the PC wall 10, it is possible to prevent the loop muscles 20 from interfering with each other at the width direction joint between the PC walls 10.

At this time, the loop muscle 20 is configured to protrude a certain length longer than the closing ridges 110 and 120 at regular intervals in the height direction between a pair of finishing ridges 110 and 120, so that the PC wall on both sides (10) ) When connecting in the width direction, a section is formed where the loop roots 20 on both sides overlap, and the joint bar 50, described later, is inserted into the overlapping space of the loop roots 20 on both sides to strengthen the bonding force. This allows them to move as one unit.

In the present invention, the loop muscle 20 is placed vertically at the widthwise end of the PC wall 10, and when the PC wall 10 is connected in the width direction, the loop muscle 20 of both PC walls 10 overlaps. Since the joint bar 50 is installed through the The through hole 111 is formed through penetration.

In this way, the through-hole 111 formed in the front closing ridge 110 is installed by passing the joint bar 50 through the through-hole 111 to the overlapping portion of the loop muscles 20, and then non-contracting. Fill it by pouring concrete, mortar, etc.

That is, the PC wall 10 formed as described above is connected by arranging the PC walls 10 in the width direction, and when connecting the PC walls 10 in the width direction, the finishing ridges 110 and 120 are connected to the adjacent PC walls ( The finishing protrusions 110 and 120 of 10) face each other to form a space 150 inside, and the loop roots 20 of both PC walls 10 intersect each other inside the space 150. This is completed by inserting the joint bar 50 through the through hole 111 of the front finishing ridge 110 and then filling the interior of the space 150 with mortar 40.

At this time, the space 150 is formed by inserting a sealing backup material 30 made of various known sealing materials between the PC wall 10 and the end portions of the facing protrusions 110 and 120 of the PC wall 10. can be kept confidential.

In the present invention, since the joint bar 50 is completely inserted into the space 150 and is not exposed to the outside, the joint bar 50 is fixed by being mounted on the loop root 20. At this time, the loop Since the size of the root 20 is larger than the size of the joint bar 50, problems such as the joint bar 50 not being installed in the correct position or falling off inside the closed space 150 may occur. In order to install the joint bar 50 in the correct position and secure it firmly, a separate locking bar 60 can be configured.

As shown, the locking bar 60 consists of a vertical bar 610 and a ⊃-shaped latch ring 620 whose ends are welded at regular intervals in the height direction of the vertical bar 610. Let it be lost.

The latch ring 620 has a size that allows the joint bar 50 to penetrate, and is made to be the same or slightly larger than the cross-sectional size of the joint bar 50, and is located at the location where the joint bar 5 is to be installed. That is, a plurality of them are welded and installed on the vertical bar 610 with the same spacing as the through hole 111 of the front finishing ridge 110, so that the joint bar 50 is inserted and installed into the latch ring 620. By ensuring that it can be installed in an accurate position, structural performance is further improved while preventing opening or distortion between the PC walls (10).

As shown, such a locking bar 60 has a vertical root 610 attached to the loop root 20 so that the through hole 111 of the front end 110 of the PC wall 10 and the latch ring 620 match. It is constructed by welding, and can be installed in advance when manufacturing the PC wall 10, or can be installed by welding in the field after manufacturing the PC wall 10.

When the locking bar 60 is fixedly installed by welding to the loop muscle 20, the joining bar 50 is inserted through the clasp ring 620 through the through hole 111 of the front finishing ridge 110. It is installed accurately in the section where the loop roots 20 on both sides overlap, and is then completed by filling the interior of the space 150 with mortar 40.

The joint bar 50 is orthogonal to the overlapping portions of the loop bars 20 of the PC walls 10 on both sides and is firmly fixed so that they behave as one. At this time, the joint bar 50 is made of reinforcing bars or steel bars of a certain length. , studs, square bars, etc., and may be made of various shapes and members. In particular, to ensure unity with the mortar 40 poured inside the space 150, the joint bar 50 is a stud with a threaded end. By assembling 510 on both sides with nuts 520, it is possible to increase the contact area with the mortar 40 and increase pull-out resistance to prevent twisting between the PC walls 10.

In the present invention, since mortar 150 is poured inside the space 150 when connecting the PC wall 10 and the PC wall 10 in the width direction, for shear reinforcement, the PC wall 10 is provided with a front end ridge. The shear key 160 can be formed integrally with the PC wall 10 by protruding at a certain height at the end between the 110 and the rear closing ridge 120.

At this time, in the portion where the shear key 160 is formed, the shear key reinforcement bars 170 can be configured to be embedded in the interior of the PC wall 10 in the horizontal direction. In particular, as shown, the shear key reinforcement bars 170 are It consists of a horizontal bar 171 of a certain length and a plate-shaped head part 172 joined to the end of the horizontal bar 171, so that the head part 172 can be configured to match the outer end of the shear key 160. there is.

The connection structure of the PC wall using the vertically arranged loop bars and joint bars of the present invention as described above allows the loop bars to be placed vertically on the side of the PC wall when connecting PC walls, allowing the connection between members even when constructing the PC wall vertically. There is a very useful effect of preventing interference from occurring and allowing the loop roots of adjacent PC walls to be easily restrained to each other using joint bars, thereby improving structural performance by allowing them to behave as one.

In addition, when manufacturing a PC wall, the locking bar, which forms a latch ring, is previously joined to the loop root, so that it is fixed across the latch ring when installing the joint bar, thereby enabling installation in an accurate position.

So far, the present invention has been described in detail with reference to the presented embodiments, but those skilled in the art can make various variations and modifications without departing from the technical spirit of the present invention with reference to the presented embodiments. will be. The present invention is not limited by such variations and modifications, but is limited by the claims appended below.

10: PC wall
110: Front closing jaw
120: Rear closing jaw
150: space part
20: loop muscle
40: Mortar
50: Joint bar
60: locking bar

Claims (9)

In the width direction connection structure between PC walls (10),
The PC wall 10 is formed at one side or both ends in the width direction with a central portion protruding from the front and rear sides, respectively, with a front end ridge 110 and a rear end ridge 120, and a pair of end ridges 110 and 120. ), the ⊃-shaped loop roots 20 are vertically arranged so as to protrude a certain length longer than the finishing ridges 110 and 120 at regular intervals in the height direction and are embedded in the inside of the PC wall 10, and are constructed as front finishing. The jaw 110 is formed by forming a through hole 111 through each position where the loop muscle 20 is formed,
When connecting the PC walls 10 in the width direction, the finishing ridges 110 and 120 face the finishing ridges 110 and 120 of the adjacent PC walls 10 to form a space 150 inside, and the space 150 is formed in the space. Inside (150), the loop roots 20 of both PC walls 10 are configured to intersect each other,
A vertically arranged loop root, characterized in that the joint bar 50 is inserted through the through hole 111 of the front finishing ridge 110 and then the mortar 40 is filled into the space 150. Connection structure of PC wall using joint bars. In claim 1,
A connection structure of a PC wall using a vertically arranged loop root and a joint bar, characterized in that the loop roots 20 are formed in a pair by being spaced a certain distance in the horizontal direction at the same height. In claim 1 or claim 2,
The loop muscle 20 installed on one side of the PC wall 10 is configured to be eccentric to the rear of the PC wall 10,
A connection structure of the PC wall using a vertically arranged loop muscle and a joint bar, characterized in that the loop muscle (20) installed on the other side of the PC wall (20) is configured to be eccentric toward the front of the PC wall (10). In claim 1,
A vertically arranged loop root and joint bar are provided between the PC wall 10 and the ends of the facing ridges 110 and 120 of the PC wall 10, where a sealing backup material 30 is formed. Connection structure of the PC wall used. In claim 1,
A locking bar 60 consisting of a vertical bar 610 and a ⊃-shaped latch ring 620 whose ends are welded at regular intervals in the height direction of the vertical bar 610,
A vertically arranged loop, characterized in that it is constructed by welding a vertical root 610 to the loop root 20 so that the through hole 111 of the front finish 110 of the PC wall 10 and the latch ring 620 match. Connection structure of PC wall using roots and joint bars. In claim 1,
The joint bar (50) is
A PC wall connection structure using vertically arranged loop roots and joint bars, characterized in that studs 510 with threaded ends are assembled on both sides by nuts 520. In claim 1,
The PC wall 10 is a vertically disposed structure, characterized in that a shear key 160 is formed integrally with the PC wall 10 by protruding at a certain height at the end between the front ledge 110 and the rear ledge 120. PC wall connection structure using loop roots and joint bars. In claim 7,
A PC wall connection structure using vertically arranged loop bars and joint bars, characterized in that shear key reinforcing bars 170 are each embedded in the horizontal direction in the portion where the shear key 160 is formed. In claim 7,
The shear key reinforcement bar 170 consists of a horizontal bar 171 of a certain length and a plate-shaped head part 172 joined to the end of the horizontal bar 171,
A PC wall connection structure using vertically arranged loop roots and joint bars, characterized in that the head portion 172 is configured to match the outer end of the shear key 160.

Images