KR101843023B1 - Shear connector for temporary retaining wall file and building outer wall, and method for constructing an underground structure using thereof - Google Patents

Abstract

The present invention relates to a structure for connecting a hollow pipe-type earth retaining wall pile and a building outer wall constructed in contact therewith, the shear wall pile file and the shear connection member installed over the outer wall of the building; A reinforcing plate coupled to a lower side of one side of the shear connector and inserted into the sheeting wall pile; And a bottom plate coupled to the lower side of the reinforcing plate and inserted into the piled wall pile to seal the holes of the piled wall pile file. The present invention relates to a piled wall pile file and a building outer wall connection shear key, It is possible to reduce the amount of the reinforcing bar and thus to shorten the construction time and to improve the economical efficiency and to increase the actual use area of the underground structure and to utilize the land efficiently and to increase the distance from the adjacent building, It is possible to provide the effect of minimizing damage to the building.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shear connector and a method of constructing an underground structure using the shear connector,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for connecting a pile wall pile and a building exterior wall connection shear key and a method of constructing an underground structure using the pile wall pile file and a method for connecting the pile wall pile to a building exterior wall, .

Generally, in order to construct the basement of the building, first the underground construction should be done. In order to prevent the settlement of the surrounding ground and to protect the adjacent structure, the earth retaining wall is constructed.

An on-site concrete pile may be used for the earth retaining wall. Because of the lack of the structural reliability of the pile, the effect of order is insufficient and the construction efficiency is low due to the construction of the field work, and the groundwater and the soil are contaminated.

PHC (precast high strength concrete) piles can also be used for the retaining walls. PHC pile walls have excellent rigidity due to factory construction, simple construction on site, shortening of air, cost reduction, and prevention of contamination of ground water or soil.

However, when the outer wall of the basement of the building is installed inside the retaining wall, the outer wall is constructed with a certain distance from the retaining wall so that the construction period There is a problem that the space utilization is inefficient.

In order to solve the above-described problems, techniques for integrating the earth retaining wall and the building outer wall have been developed.

For example, Korean Patent No. 10-0960603 discloses a method of constructing an underground concrete wall using an earth retaining wall composed of a picocice file (Figs. 7A to 7C). (A) puncturing the ground along the site boundary, inserting the PHC file (11), and repeating the final step, thereby forming an earth retaining wall composed of PHC files in the ground; (b) constructing an inner column supporting the strut while acting as a column of the structure according to a planar plan; (c) fixing the installation position of the connection bar by arranging the head of each PHC file, inserting the connection bar 21 so as to be exposed in the hollow of the PHC file, and joining the connection bar fixing means 22 to the connection bar; (d) Excavate at a constant depth and connect the head of each PHC file. Reinforcements for forming the cap beam (20), which is the base on which the ground floor column or wall is erected, are installed and the mold is installed. Then, the cap beam concrete and each PHC Simultaneously pouring concrete filling the hollow of the pile; (e) repeating a process of digging up to a predetermined depth of planet and then installing a strut to connect the wale band and the inner column so as to support the wedge wall with the wale band until the planned excavation height is reached; (f) installing a plurality of shear connectors 411 on the outer surface of the PHC file corresponding to the lowermost layer, fixing the metal lath 412, installing the bottom concrete, and installing the lowermost concrete wall to construct the lowermost wall; (g) After eliminating the wale and stratum of the layer corresponding to the lowest layer + 1 layer, a plurality of shear connectors are installed on the outer surface of the PHC file, the metal lath is fixed, the floor concrete is laid, Repeating the step of constructing the layered sidewalls up to the ground layer-1 layer; And (h) placing a ground-layer bottom concrete. In the step (f), at a bottom floor of a portion where the foundation floor and the sidewall contact each other, a load transmitted through the sidewall is uniformly transmitted to the ground, The present invention relates to a method of constructing an underground concrete wall using an earth retaining wall composed of a PHC file, wherein a pillar or a wall of the underground layer and the ground layer are arranged as far as possible on the site boundary line The construction of the underground wall using the earth retaining wall composed of the PHC file which is possible to reduce the thickness of the wall during the construction of the wall by reducing the thickness of the wall, The purpose is to provide.

However, in the prior art, holes are formed in a PHC file by using a drill, a plurality of shear connectors are installed, and concrete walls are formed by installing outer wall concrete. The construction time and construction cost for installing a shear connector are increased have.

Patent 1: Korean Patent No. 10-0960603

In order to solve the above-mentioned problems, the present invention provides a building with a connection shear key, which can easily connect and integrate the wall of the building with the wall of the building, thereby reducing the thickness of the building outer wall and efficiently using the land, And a method for constructing an underground structure using the shear key.

The earthenware wall pile and the building outer wall connection shear key according to an exemplary embodiment of the present invention interconnect a hollow pipe-type earthen wall pile file and a building outer wall constructed in contact with the earthen pile wall pile file, Installed shear connectors; A reinforcing plate coupled to a lower side of one side of the shear connector and inserted into the sheeting wall pile; And a bottom plate coupled to the lower side of the reinforcing plate and inserted into the piled wall pile to seal the holes of the piled wall pile file.

Further, the earth retaining wall pile may be a PHC (precast high strength concrete) pile.

Further, the shear connector may be characterized by being in the form of a letter, letter, letter, letter, or letter.

Further, the reinforcing plate is a cross-shaped body including a first member and a second member coupled to the first member in a direction perpendicular to the first member, and the first member and the second member are connected to each other through a hole And the upper portion is formed to be wider than the lower portion and is mounted on the upper side of the piled wall body pile.

The wall connection member may further include a wall connection member coupled to a lower side of the other side of the shear connection member, wherein the wall connection member is inserted into the inside of the outside wall of the building.

Further, the wall connecting member may be further extended downward than the upper end of the earth retaining wall pile.

Further, the first member and / or the second member of the reinforcing plate may include a through hole through which a reinforcing bar can be inserted.

In the method of constructing an underground structure using a shear wall pile file and a building sheath connection shear key according to an exemplary embodiment of the present invention, a method of constructing an underground structure using a shear wall connection file and a shear wall connecting a building outer wall, step; Excavating the inside of the earth retaining wall pile; Arranging a head portion of the earth retaining wall pile and installing the connection shear key; Constructing a cap beam for laying concrete after placing reinforcement of a cap beam including the connection shear key; And constructing the building outer wall by placing reinforcing bars in contact with the inside of the retaining wall pile and pouring concrete.

The step of excavating the inner side may be performed after the step of installing the cap beam, or the step of excavating the inner side, the step of installing the connection shear key, and the step of constructing the cap beam. .

In addition, the step of constructing the building outer wall may include the step of constructing a frame beam on the upper side of the building outer wall.

According to the present invention, by integrating the earth retaining wall pile with the building outer wall of the underground structure, the thickness of the outer wall of the building and the amount of the rebar can be reduced and economic efficiency can be secured.

In addition, by reducing the thickness of the outer wall of the structure of the underground structure and eliminating the space between the outer wall of the building and the wall of the retaining wall, the use area can be increased and the space utilization can be increased.

In addition, by using the earth retaining wall pile file as a foundation file of the building, the number of pile construction can be reduced, and air can be shortened and the construction cost can be reduced.

In addition, since the thickness of the outer wall of the building is reduced, the distance from the adjacent building can be secured to be larger than that of the existing building, so that construction can be facilitated and the complaint can be minimized by minimizing damage to the adjacent building.

Also, by simply inserting the reinforcing plate into the hole of the earth retaining wall pile, the installation of the connection shear key can be completed and the construction can be very convenient.

In addition, since the shear connection member of the connection shear key is spaced apart from the upper side of the retaining wall pile, the reinforcement of the cap beam is easily arranged and the structural stability of the cap beam can be secured.

FIG. 1 is a perspective view showing a state in which an inner wall is formed by connecting an earth wall house file and an outer wall of a building according to an exemplary embodiment of the present invention by connecting a connecting shear key.
FIG. 2 is a view showing a state in which concrete is placed in the cap beam and the frame beam of FIG. 1. FIG.
3 is a side view of Fig.
4 is a view showing a state in which a connection shear key is installed in the earth retaining wall pile.
FIG. 5 is a view showing a connection shear key separated from an earth retaining wall file. FIG.
6 is a view showing a state in which a wall connecting member is coupled to a lower side of a connection shear key.
Figure 7 is a drawing of the prior art.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In the drawings, like reference numerals are used to refer to like elements throughout the drawings, even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, May be "connected "," coupled "or" connected ".

1 and 2, a description will be made in detail of a sheeting wall connection file and a shear connection sheath according to an exemplary embodiment of the present invention.

The earthen wall pile file and the building outer wall connection shear key according to an exemplary embodiment of the present invention interconnect the hollow earthen wall pile wall pile 10 and the building outer wall pile 20 constructed in contact therewith, A front end connection member 32 installed on the upper side of the building outer wall 20; A reinforcing plate (34) coupled to a lower side of one side of the shear connector (32) and inserted into the sheeting wall pile (10); And a bottom plate 36 coupled to the lower side of the reinforcing plate 34 and inserted into the piled wall pile 10 to seal the holes of the piled wall pile file 10.

The connection shear key 30 of the present embodiment may include a shear connection member 32, a reinforcing plate 34, a base plate 36, and the like. The connection shear key 30 can easily integrate the earth retaining wall pile 10 and the building outer wall 20 together. Accordingly, the thickness of the building outer wall 20 of the underground structure can be reduced by connecting the retained wall pile 10 to the building outer wall 20 to be used as a permanent wall.

The earth retaining wall pile 10 may be a hollow reinforced concrete pile or a PHC pile. The PHC file is factory-produced, has excellent structural rigidity, minimizes construction at the site, saves construction time, and prevents environmental pollution due to leakage of concrete.

The shear connection member 32 may be installed over the earth retaining wall pile 10 and the building exterior wall 20. That is, one side of the shear connector 32 may be located on the upper side of the retaining wall pile 10 and the other side may extend to the building outer wall 20. The shear connector 32 may be formed of steel or the like. The shear connector 32 may be formed in a shape of a letter C, a letter C, a letter H, a letter C, or the like. That is, the shear connectors 32 of various shapes can be selectively applied.

The reinforcing plate 34 may be joined to the lower side of the shear connecting member 32 by welding or the like. The reinforcing plate 34 may be formed of steel or the like. The reinforcing plate 34 can be inserted into the interior of the earth retaining wall pile 10. [ Therefore, the connection shear key 30 can be coupled to the earth retaining wall pile 10 only by inserting the reinforcing plate 34 into the retaining wall pile 10.

A bottom plate 36 may be coupled to the lower side of the reinforcing plate 34 by welding or the like. The base plate 36 may be a steel plate that can be inserted inside the earth retaining wall pile 10. The bottom plate 36 can seal the hole of the earth retaining wall pile 10 formed in a hollow shape. Therefore, the concrete to be laid is hardened by being placed in the hole of the earth retaining wall pile 10, which is the upper side of the base plate 36, so that the connection shear key 30 can be firmly engaged with the retaining wall pile 10.

The reinforcing plate 34 may be composed of a first member and a second member. The first member and the second member may be steel sheets. The first member and the second member may be cross-shaped to be coupled to each other at right angles to each other, or may be parallel to each other. In addition, the second member may further include a third member connecting the first member and the second member provided in a parallel shape, and may be H-shaped. The reinforcing plate 34 composed of the first member and the second member having a parallel shape can facilitate the arrangement of the cap beam 40 reinforcement. Further, the H-shaped reinforcing plate 34 can significantly increase the connection strength with the building outer wall 20. The lower portion of the first member and the second member can be formed with a width that can be inserted into the hole of the earth retaining wall pile 10. [ The upper portions of the first member and the second member may be formed wider than the width of the lower portion. That is, the lower part of the first member and the second member are closely inserted into the hole of the earth retaining wall pile 10, and the upper part is seated on the upper side of the earth retaining wall pile 10, May be spaced apart. Therefore, the reinforcing bars of the cap beam 40 can be easily disposed below the shear connecting members 32. [ In addition, a part of the reinforcing plate 34 is inserted into the earth retaining wall pile 10 and is stood, so that the connection shear key 30 can be easily installed in the retaining wall pile 10. [

Through holes may be formed in the first member, the second member, and the third member of the reinforcing plate 34. The cap beam 40 or the reinforcing bars of the slab may be inserted into the through holes. Therefore, the reinforcing plate 34 and the cap beam 40 or the reinforcing bars of the slabs are coupled to each other to firmly connect the retaining wall pile 10, the cap beam 40, the slab, and the building outer wall 20 together.

The wall connecting member 38 may be coupled to the lower side of the other side of the shear connecting member 32 by welding or the like. The wall connector 38 may be an I-beam, a steel plate, a rebar, a bolt, or the like. The wall connector 38 can be inserted into the interior of the earth retaining wall 10. The reinforcing plate 34 of the connection shear key 30 is inserted into the retaining wall pile 10 and the shear connecting member 32 is inserted into the building outer wall 20 so that the sheeting wall pile 10 and the exterior The wall 20 can be firmly integrated. The wall connecting member 38 can be further extended downward than the upper end of the earth retaining wall pile 10. [

Hereinafter, a method of constructing an underground structure using a shear wall file and a shear connection sheath according to an exemplary embodiment of the present invention will be described with reference to FIGS. 1 to 3. FIG. The constructions in this construction method can be applied by analogy to the constructions of the above-described embodiments.

A method of constructing an underground structure using a shear wall file and a building outer wall connection shear key according to an exemplary embodiment of the present invention includes: constructing an earth retaining wall pile 10 on a site; Excavating the inside of the earth retaining wall pile 10; Arranging a head portion of the earth retaining wall pile (10) and installing the connection shear key (30); Constructing a cap beam (40) for placing concrete after placing reinforcing bars of the cap beams (40) including the connection shear keys (30); And constructing the building outer wall 20 by placing reinforcing bars in contact with the inside of the retaining wall pile 10 and pouring concrete.

The step of constructing the earth retaining wall pile 10 is a step of first constructing the earth retaining wall pile 10 on a planned ground to be constructed. That is, the step of forming the retaining wall by forming the cloth tools to insert the retaining wall piles 10 into the planned ground using auger or the like, and inserting the PHC file or the like into the piercing holes.

The step of excavating the inside of the retaining wall pile 10 is a step of excavating the inside of the retaining wall formed by the piling wall piles 10. In this case, a wale band and a strut can be installed to connect the soil retaining wall piles 10 to each other.

The step of installing the connection shear keys 30 is performed by arranging the head portions of the earth retaining wall piles 10 in a plane and then inserting the reinforcing plate 34 and the base plate 36 into the holes of the earth retaining wall pile 10 . The connection shear key 30 may be provided with an appropriate number of members in consideration of structural stability. That is, the user can select and install the retention wall piles 10 at regular intervals.

In the step of constructing the cap beam 40, a reinforcing bar is disposed along the perforated wall piles 10, a band reinforcing bar surrounding the reinforcing bars is installed, and the concrete is installed to construct the cap beam 40. That is, reinforcing bars are laid out in the direction of the retaining wall and in the direction perpendicular thereto, and concrete is laid so that the laid concrete is laid up to the bottom plate 36 of the connection shear key 30.

The step of constructing the building outer wall 20 is a step of forming the outer wall 20 of the building by placing reinforcing bars close to the inner side of the retained wall pile 10, installing the formwork, and pouring concrete. Therefore, since the retained wall pile file 10 and the building outer wall 20 are interconnected and the retained wall pile file 10 is used as a permanent wall, the required amount of reinforcing steel and the amount of concrete of the underground wall of the building can be reduced and the construction cost can be reduced.

The step of excavating the inner side may be performed after the step of installing the cap beam 40. That is, the inside of the retained wall pile 10 can be excavated after the connection shear key 30 is installed and the cap beam 40 is installed.

In addition, the step of excavating the inside, the step of installing the connection shear key 30, and the step of installing the cap beam 40 can be performed together. That is, after the inner side is partially excavated, the connection shear key 30 is installed, the cap beam 40 is installed and then the remaining inner part is excavated or the connection shear key 30 is installed and the cap beam 40 is installed, . ≪ / RTI > The order of these can be adjusted appropriately according to the field situation.

In the step of constructing the building outer wall 20, a frame beam 50 may be further provided on the upper side of the building outer wall 20. That is, by installing the frame beam 50 as required, the structural stability of the underground structure formed of the sidewalls can be improved.

As a result, by connecting the earth retaining wall formed of the earth retaining wall pile 10 with the building outer wall 20 with the connection shear key 30, the wall thickness of the building outer wall 20 can be reduced by using the retaining wall as the permanent wall Therefore, the reduction of the amount of reinforcing bar and the reduction of the amount of concrete reduce the economic efficiency and the effect of shortening the air. In addition, since the thickness of the building outer wall 20 is reduced, the effective area of the underground structure can be increased.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. That is, within the scope of the present invention, all the constituent elements may be constituted or operated selectively in combination with one or more. Furthermore, the terms "comprises", "comprising", or "having" described above mean that a component can be implanted unless otherwise specifically stated, But should be construed as including other elements. All terms, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Commonly used terms, such as predefined terms, should be interpreted to be consistent with the contextual meanings of the related art, and are not to be construed as ideal or overly formal, unless expressly defined to the contrary.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: Masonry wall file
20: Building exterior wall
30: Connection Shekel
32: Shear connector
34: reinforcing plate
36: Base plate
38: Wall connector
40: cap beam
50: border frame

Claims (10)

A hollow pipe-type earth retaining wall pile and a building exterior wall to be connected thereto are interconnected.
A shear connection member installed over the earth retaining wall pile and the outer wall of the building;
A reinforcing plate coupled to a lower side of one side of the shear connector and inserted into the sheeting wall pile;
And a bottom plate coupled to a lower side of the reinforcing plate and inserted into the piled wall pile file to seal holes in the piled wall pile file,
Wherein the reinforcing plate
A cross member including a first member and a second member coupled to the first member in a direction perpendicular to the first member,
Wherein the first member and the second member are made of an elastic material,
The lower portion is formed to have a width to be inserted into the hole of the earth retaining wall pile and is inserted into the hole. The upper portion is formed to be wider than the lower portion and is mounted on the upper side of the piling wall pile,
Wherein the first member and / or the second member of the reinforcing plate include through-holes through which reinforcing bars can be inserted.
The method according to claim 1,
Wherein the earth retaining wall pile file is a PHC (precast high strength concrete) pile.
The method according to claim 1,
Wherein the shear connector comprises:
Characterized in that it is in the form of a letter, a letter, a letter, a letter, a letter, a letter, a letter, a letter or a letter.
delete The method according to claim 1,
Further comprising a wall connection member coupled to a lower side of the other side of the shear connection member,
Wherein the wall bridging member is inserted into the inside of the building outer wall.
The method of claim 5,
Wherein the wall bridging member extends further downward than an upper end of the earth retaining wall pile file.
delete In a method of constructing an underground structure using a shear wall connection and a connection of an outer wall of a building,
Installing an earth retaining wall pile on site;
Excavating the inside of the earth retaining wall pile;
Arranging a head portion of the earth retaining wall pile and installing the connection shear key;
Constructing a cap beam for laying concrete after placing reinforcement of a cap beam including the connection shear key;
And constructing the building outer wall by placing reinforcing bars in contact with the inner side of the retaining wall pile and pouring concrete,
The step of constructing the building exterior wall comprises:
And constructing a frame beam on the upper side of the building outer wall,
The connection shear-
The structure of claim 1, wherein the hollow pipe-shaped earth retaining wall and the outer wall of the building are connected to each other,
A shear connection member installed over the earth retaining wall pile and the outer wall of the building;
A reinforcing plate coupled to a lower side of one side of the shear connector and inserted into the sheeting wall pile;
And a bottom plate coupled to the lower side of the reinforcing plate and inserted into the piled wall pile to seal a hole of the piled wall pile file, and a method of constructing an underground structure using the pile connected to the outer wall of the building.
The method of claim 8,
Wherein the step of excavating the inside of the retaining wall pile and the step of installing the connection shear key are carried out alternately or simultaneously, and a method of constructing an underground structure using the shear wall pile file and the building outer wall connection shear key.
delete

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