KR200266585Y1 - panel for external underground wall of building and external underground wall- structure using the same - Google Patents

Abstract

The present invention relates to a panel for the outer wall of the structure and a structure for assembling the outer wall of the structure using the same. It is constructed as a panel assembly, whereby the outer wall of the structure can be assembled and installed at the site together with the underground outer wall, and formwork is installed as in the case of constructing the reinforced concrete wall to form the outer wall of the structure after the underground construction of the structure, Underground walls can be built without final finishing work such as protective wall construction, plastering or painting, which simplifies the process and shortens the air, and makes it easy to secure quality using factory production materials and systematic construction management is possible. Panel for exterior wall and structure using it It relates to an exterior wall mounting structure.

Description

Panel for external underground wall of building and external underground wall- structure using the same}

The present invention relates to a panel for the outer wall of the structure and a structure for assembling the outer wall of the structure using the same. More specifically, when the reinforced concrete wall is constructed to form the basement outer wall of the structure after the underground construction of the basement structure, the basement outer wall is constructed in the form of a laminated wall without final form work such as formwork, protective wall construction, plastering or painting. It is possible to simplify the process and shorten the air, to secure the quality by using the factory production materials, and to systematically manage the construction, and to reduce the construction cost. will be.

Normally, after the underground excavation of the structure, earthquake construction is performed to construct the outer wall of the underground structure. The earthwork construction inserts the H pile (thumb pile) into the ground at regular intervals, and then excavates the structure to be constructed with an excavator, etc., between the thumb piles embedded in the ground, such as wooden boards. To support earth pressure and prevent the collapse of the ground.In order to build the basement outer wall of the structure, a large number of internal reinforcing bars for the outer wall, etc. are formed on the part where the outer wall should be formed based on the earthen board, and then formwork for the outer wall. Install and connect a plurality of, the concrete between the earthen board and the formwork, and curing to build the basement outer wall of the structure. Furthermore, in order to prevent groundwater infiltration into the outer wall of the structure, the concrete containing concrete powder type waterproofing material that has self-healing ability is contained when active silica is contained in the outer wall of the structure. This is also used.

When constructing reinforced concrete walls by formwork in order to build the outer wall of the structure as described above, it is common to use mainly wooden formwork, but in the case of such formwork, the installation process is inevitably made by manpower. It is difficult to control the construction efficiently because of poor and poor quality control. There is a problem of cost increase and delay of air. Structure life due to degradation of structure due to partial leakage and crack of underground outer wall due to defects in formwork. There is a problem that causes a lot of additional costs, such as to cause a shortening of, and to finish the surface exposed to the outside by a separate plastering or painting method.

Furthermore, in order to build the basement outer wall of the structure, it is installed at regular intervals from the outer wall of the structure by using a panel of a panel type such as plastic material, which is produced in a factory and serves as formwork, and then concrete is placed in the space formed by the partition wall. In addition, a method of forming a plywood wall together with a preformed outer wall of the structure and a method of using a space by a partition as a drainage drainage without placing additional concrete have also been developed. However, the panel is very expensive and is actually used for the outer wall of a structure. There is a limit to use, and the panel itself is factory-produced, but the panel assembly in the field uses a connecting bolt such as a separate bolt or clamp, so the installation work is almost done by manpower. The installation work also causes the cost of construction Was, the more applicable in the real world if this exposure of the panel shave need additional plaster is a problem that is very limited.

Therefore, the installation work is simple for the construction of the basement outer wall of the structure, and the air can be reduced, and the quality can be easily secured, and no separate finishing work is required after the construction. Therefore, efficient and systematic construction management is possible, which can reduce the construction cost. The method was desperately needed.

The present invention is to solve the above problems,

The purpose of the present invention is to construct the basement outer wall of the structure in the form of plywood, but does not need any additional formwork, and uses the factory-produced precast concrete panels, which do not require separate finishing work, by fitting and assembling them. It is to provide the panel for the exterior wall of the structure and the assembly structure of the basement outer wall using the same, which is easy to control the quality, and it is possible to make parts by modularization when designing the outer wall of the structure, thereby simplifying the repair work due to the occurrence of defects. .

Another object of the present invention is to provide a means to prevent deformation and fall due to the assembly of the panel when building the outer wall of a large structure by attaching the supporting hardware to the assembly, such as inserts formed on the precast concrete panel, formwork and concrete It provides a means to prevent the leakage of the outer wall which may be caused by the holes by installing various auxiliary irons for preventing the fall of the formwork due to the impact of pouring, and to easily build the structure slab on the constructed outer wall. It can provide a connecting hardware that can be together to provide a structure outer wall panel that can easily maintain and secure the convenience of the construction and the quality of the outer wall of the structure and to provide a structure for the structure of the basement outer wall using the same.

Another object of the present invention is to make a precast concrete panel, which is only suitable for the construction of urban buildings where it is difficult to secure a working site because only the assembly process is carried out at the site and no need of a material storage place for installing the exterior wall of the structure, and It is to provide a structure for assembling the outer wall of the structure used.

Another object of the present invention is to provide a means for securing the continuity of the work can be pre-installed in the precast concrete panel, the installation of electrical and facility buried in advance, so that separate crushing and stone work can be excluded for this purpose in the field It is to provide a panel for the outer wall of the structure and the structure of the assembly structure of the basement outer wall using the same.

1A to 1B are front, side and plan views of a lower precast concrete panel, which is an embodiment of the present invention.

Figure 2 is a side view of the intermediate precast concrete panel is an embodiment of the present invention.

Figure 3 is a side view of the lower precast concrete panel is an embodiment of the present invention.

4 is a front view and a side view of a standard precast concrete panel which is an embodiment of the present invention.

Figure 5 is a perspective view of the installation of the panel assembly for a structure outer wall is an embodiment of the present invention.

Figure 6 is a perspective view of the installation of the panel supporting hardware of an embodiment of the present invention.

Figure 7 is a detailed view of the installation of the lower panel fixed hardware of an embodiment of the present invention.

Figure 8 is a detailed view of the installation of the brace for the slab embodiment of the present invention.

9a to 9c is a perspective view of the front, side and plan views of the outer wall of the structure using the panel of the present invention.

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

10: Precast concrete panel 20, 30, 40, 50: Fitting connection

60: connection hole 70: connection auxiliary hardware

80: Glyph 90: Salvage hardware

91: fixture 92: support hardware

100: lower precast concrete panel 200: middle precast concrete panel

300: upper precast concrete panel 400: standard precast concrete panel

500: structure foundation concrete 600: structure outer wall

610: panel assembly 620: structure outer wall

630: structure slab 700: soil blocking

The present invention is a factory produced precast concrete panel that can omit the existing formwork installation to build the outer wall of the structure and the connection portion of the panel is assembled using a simple connection means to mechanically handle the assembly, installation work It provides a panel assembly completed by forming a connection jaw of a predetermined shape as possible, and provides a plywood construction method of the basement outer wall of the structure using the panel as a preferred embodiment of the present invention will be described in detail with reference to Figs. .

First, a precast concrete panel is disclosed first, and a structure of the structure of the basement outer wall of the structure formed by using the panel, and further, the method of constructing the structure underground wall is described.

[Precast Concrete Panels]

Precast concrete panels of the present invention can be divided into four embodiments. That is, the lower precast concrete panel 100 formed directly on the structure foundation concrete 500 or the ground, the intermediate precast concrete panel 200 and the upper precast concrete that are installed to fit on the upper surface of the lower precast concrete panel It is divided into a panel 300 and a standard precast concrete panel 400.

The four precast concrete panels (100.200.300,400) can be used in combination of one or more according to the installation height of the outer wall of the structure 600, and the upper and lower connections according to the installation position is only slightly different, and the factory is manufactured After being transported to the site, the outer wall of the structure must be directly formed to be assembled and installed by using mechanical lifting means.

Lower precast concrete panels

The lower precast concrete panel 100 is a precast concrete panel having an overall shape of a rectangular parallelepiped shape as shown in FIG. 1B and has a predetermined thickness and an internal hollow 10 for weight reduction. The inner hollow is a square in Figure 1b is formed in the inside of the panel two, but the shape and number is changed according to the design.

As shown in Figure 1a, the lower surface is treated with a horizontal surface so that it can be installed vertically on the foundation such as the foundation concrete of the structure, the upper surface is sandwiched between the intermediate precast concrete panel 200 or the upper precast concrete panel 300 The connection jaw fit 20 is formed to be installed in a customized manner. The connecting jaw is composed of a horizontal portion 20a and a protrusion 20b continuously formed with the horizontal portion, and the connecting jaws of the intermediate or upper precast concrete panels 200 and 300 as shown in FIG. There is an advantage that can be assembled to the panel assembly 610 simply connected to each other. The connecting jaw 20 is continuously formed along the upper surface of the panel, the size and shape can be changed if the structure can be connected to fit.

The upper and lower connecting holes 60 having a predetermined depth are formed at the protrusions of the connecting jaw fittings on the left and right upper surfaces, and the connecting holes form the intermediate or upper precast concrete panels only by the connecting jaws of the panels. When connecting and assembling the lower precast concrete panel, it may not be able to stand on its own, so it can be inverted, so that the connection between the panel and the panel is more secured by using the connection auxiliary hardware 70 such as a connecting rod in the connection hole 60. Its formation position. The size and number can be changed according to the thickness and area of the panel and can be omitted in the design.

The left and right connection jaws fit (40, 50) are formed on the left and right surfaces so that the lower precast concrete panels can be connected to each other, such as the connection jaw fit formed on the upper surface of the panel, the lower precast concrete panels It can be easily connected to each other and installed, Figure 1 illustrates a case in which the connection hole is not formed, but can further form a connection hole according to the size of the panel.

The front surface (A) is a surface that is exposed to the inside of the outer wall of the structure, so that various shapes of patterns are pre-formed in the factory so that no separate painting and plastering work is required, and thus there is no need for a separate finishing work after panel installation. In Figure 1a is shown an irregular pattern 80 is formed in a trapezoidal shape therein, but can be formed in a variety of patterns according to the structure, a specific color may be formed in advance in the factory.

Since the back surface B is a surface to be plywooded, it is preferable to form irregularities to increase the adhesion performance with the placed concrete.

Intermediate Precast Concrete Panel

The intermediate precast concrete panel 200 is a panel coupled to the upper surface of the lower precast concrete panel 100 and the lower surface of the upper precast concrete panel, which will be described later, as shown in FIG. 5, respectively, connected to the upper surface and the lower surface. Custom jaws 20 and 30 are formed.

Unlike the lower precast concrete panel, the lower precast concrete panel is the same as the lower precast concrete panel except that a connection fitting jaw 30 having a connection hole is formed. That is, as shown in FIG. 2, the connection jaw fit 30 having a connection hole formed on the lower surface is additionally formed in the lower precast concrete panel.

Upper precast concrete panel

The upper precast concrete panel 300 is connected to the connection fitting jaw formed on the upper surface of the lower precast concrete panel 100 or the intermediate precast concrete panel 200, as shown in FIG. As can be, the connection fitting jaw (30) formed on the lower surface is connected to each other in a fitting manner to fit the connection jaw of the lower or intermediate precast concrete panel, by connecting rods inserted into each other by half connecting the connection holes to each other It is fixedly coupled to each other, and the upper surface is treated with a horizontal surface to connect with the slab and other outer walls of the structure. Compared with the lower precast concrete panel, except that the connection fitting jaw 30 is formed in the lower surface except for the upper surface is formed, the connection jaw is formed on the left, right surface is the lower pre Same as cast concrete panels.

Standard Precast Concrete Panels

When the height of the outer wall of the structure is not high, only one precast concrete panel is installed, and only the left and right panels of the outer wall can be joined, so that the connection fit is not formed on the upper and lower surfaces as shown in FIG. The panel on which the connection fittings 40 and 50 are formed only on the right side is used. That is, the precast concrete panel in which the left and right connection jaws are formed is referred to as a standard precast concrete panel 400 in the present invention, and other than the same as the panels 100, 200, and 300.

The lower, middle, upper and standard precast concrete panels (100,200,300,400) as described above can be manufactured in various sizes depending on the height of the basement of the structure, the length and shape of the outer wall, the connection with the columns, beams and inner walls, Under the strict quality control in the factory (concrete is to be cast in the floor, the form is used as steel formwork, the curing is steam curing, and the compressive strength is at least 180㎏ / ㎠ It is possible to maintain uniform quality, which is transported to the site and assembled. The panels can be easily lifted by installing a plurality of lifting hardware 90, such as a hook on each upper surface for transport, there is a risk of local damage due to excessive load concentrated on the hook during the lifting operation Therefore, it is possible to reinforce hook installation part by welded wire mesh, and to reinforce panel strength by using auxiliary reinforcing bars such as welded wire mesh and PS steel wire to prevent strength reinforcement such as compression, bending strength, deformation and crack of panel. Of course it is.

Although not shown in the drawings, electrical or facility pipes can be installed inside the panel in advance, thus eliminating rough and crushed panels in the field, thereby reducing field work, thereby reducing construction costs due to air savings. You can do it.

Furthermore, a fixture 91 such as a plurality of inserts is additionally installed on the front surface of the panels 100, 200, 300, and 400. Support fixtures such as steel pipe braces, which will be described later, are installed on these fixtures, and after the panels are assembled and installed in the field, the self-reliance is secured when a shock occurs when the size of the panels or the size of the concrete to build the plywood is large. can do. 4 is installed on the front of the panel in Figure 4, but is omitted or changed according to the design.

[Assembly structure of outer wall of structure]

The lower, middle, upper and standard precast concrete panels (100, 200, 300, 400) are assembled according to the height and length of the outer wall of the structure at the site by the upper, lower, left, and right connection fittings, respectively, and assembled into a mechanical lifting device in the field Is installed.

In other words, when the floor height of the outer wall of the structure is very low, the connection jaw is not formed on the upper and lower surfaces by using the standard precast concrete panel 400, and the panel using the connection jaw is formed only on the left and right surfaces. If the height of the outer wall is high enough to install with only one standard precast concrete panel (the precast concrete panels are manufactured in 1200 (W) × 1500 (H) size, if the height is larger than 1.5M, combine them properly). There is a combination of lower, middle and upper precast concrete panels (100, 200, 300) to build the outer wall of the structure in the form of plywood.

As shown in FIG. 5, the lower, middle, and upper precast concrete panels are combined with each other to explain the installation perspective of constructing the outer wall of the structure in the form of a laminated wall. When the height of the outer wall of the structure is high, the panel assembly 610 is assembled and installed by the mechanical lifting device in the field by using all three panels, and the panel assembly is spaced apart from the surface of the earth film formed by the earth work. After forming 610, the inner reinforcing bar is placed between the surface of the earth and the panel assembly, and the concrete outer wall 620 is formed by pouring concrete in which a waterproofing material (preferably powder type) is mixed to form the outer wall of the structure 600. It is constructed in the form of plywood.

The panel assembly 610 is firmly coupled to the outer wall because the concave-convex portion is formed on the rear surface B of the panel assembly and the outer wall of the structure 620 is cast and cured, and the outer wall is bonded to each other.

As the height of the outer wall of the structure 600 increases, the number of installation of the intermediate precast concrete panels increases. At this time, when the panel assembly is formed only by the connecting rod and the fitting fitting inserted into the connection hole, careless or outer wall during the field work Since the panel assembly may be inverted due to the impact when concrete is placed, or the panel may be assembled by the load of the panel itself, the load may be concentrated at a predetermined position, and thus local damage may occur. As shown in FIG. 6, a fixture such as an insert is inserted into the front surface A of the panel (91). ), The upper part of the support hardware 92, such as steel pipe braces are fixed using the upper fixing hardware 93, and the lower is also fixed to the structure concrete foundation using the lower fixing hardware 94 in the inclined state as a whole By allowing the steel pipe brace to support the panel, it is possible to prevent the fall and the like. The angle of inclination and length of the steel pipe brace may be used for the brace fastening device 95 such as a cylindrical steel pipe having a thread formed therein to be adjustable in the field according to the height of the outer wall of the structure to be constructed.

After the outer wall of the structure is completed, the upper fixing hardware for fixing the steel pipe brace is removed. Since fasteners such as inserts form a certain hole in the panel, it may cause leakage afterwards, thus filling materials such as cement mortar. By filling with, it enhances the waterproofing effect and can finish the surface beautifully.

As shown in Fig. 7, the lower surface of the panel is formed in a horizontal plane, so that it can be self-supporting in the concrete foundation of the structure, but it is necessary to fix the lower part of the panel according to the thickness of the panel, so that the lower panel fixing hardware such as L-shaped steel 96 ) Is installed in contact with the lower part of the panel, and fixed with a bolt or the like can be fixed to the lower part of the panel can form a more stable panel assembly.

In addition, the slab of the structure is installed at the top of the panel at a right angle, as shown in Figure 8 to install the slab brace 97, such as L-shaped for supporting the slab formwork 99, such as plywood to form the slab Slab concrete should be poured on top of the slab formwork. In order to support the slab formwork, the L-shaped steel is installed on the upper part of the front panel by using a bolt or the like, and the timber 98 is placed on the L-shaped steel, and the slab formwork 99 is installed on the timber.

[Construction of Building Underground Wall]

The underground construction wall construction method of the present invention relates to a method for constructing the structural exterior wall 600 by using the lower, middle, upper and standard precast concrete panels (100, 200, 300, 400),

After constructing the earthquake, reinforcing the reinforcing bar for the outer wall; Constructing a panel assembly by using a plurality of panels for the exterior wall of the structure to form the exterior wall of the structure with a predetermined distance from the soiled surface; And placing the concrete in which the waterproofing material is mixed between the soiled surface and the panel assembly to form a plywood wall.

In order to form the outer wall of the structure, the ground on which the structure is to be built is excavated using an excavator, etc. The excavated ground is excavated due to the earth pressure and groundwater pressure of the ground. In the present invention will be described on the basis of the earthquake construction method using the H-pile and earth screen. After inserting the H pile into the ground by driving, etc., while excaving the ground, the wood retaining board is sandwiched between the H pile and the H pile, and finally, when the soil blocking is completed, the outer wall of the structure should be formed first as shown in FIGS. 9A to 9C. Internal reinforcing bars (not shown) are placed on the site. In order to prevent leakage of the outer wall while reinforcing the internal reinforcing bar, a separate index plate may be installed, and the expansion joint may be placed depending on the length of the outer wall. When the reinforcement of the internal reinforcing bar for the outer wall is completed as described above, the pre-cast concrete panel (100, 200, 300, 400) completed in the predetermined size in the factory is transported to the site and then the internal reinforcement is positioned toward the rear of the panel using a lifting device It will be assembled and installed. The panels are provided with lifting hooks, such as hooks, to allow for easy horizontal or vertical lifting. In the present invention will be described on the basis of the case of building the panel assembly 610 using the lower and upper precast concrete panels.

First, the outer walls 600 of the structure to be formed, that is, the upper surface of the foundation foundation, etc., the lower precast concrete panels are connected to each other using the left and right fitting jaw. At this time, the upper surface of the foundation concrete and the lower portion of the lower precast concrete using a lower fixing hardware, such as L-shaped, so as not to deviate from the site where the conductive and outer walls that should be formed as the assembly proceeds. 7 is a detailed view of a portion where a specific example of the lower fixed iron is formed. In FIG. 7, a fastener such as an insert is formed below the lower precast concrete panel to match holes formed in the L-shaped steel in contact with the front surface of the panel, and fasten by fastening bolts, etc., and simultaneously formed in the L-shaped steel in contact with the concrete foundation of the structure. The L-shaped steel is also fixed to the upper surface of the foundation of the structure by using a bolt or the like in the hole. The number of installation of the lower fixed steel is changed according to the length and the height of the outer wall of the structure, the fastening method may be other than the method shown in FIG.

In addition, since a plurality of fasteners 91 such as inserts are formed on the front surface of the lower precast concrete panel, fixing the upper part of the panel supporting hardware such as a steel pipe brace using the upper fixing hardware to the insert, and the structure foundation concrete 500 ) After installing the lower fixing hardware in consideration of the support angle on the upper surface, fix the lower part of the steel pipe brace as well.When the panel is assembled, the panel may be released from its original position due to its own load, so that the support of the steel pipe brace may be loosened. Therefore, it is preferable that the steel pipe brace is provided with a brace fastening hardware such as a cylindrical steel pipe with a thread formed on the inner surface in the middle of the outline, and the installation details thereof are shown in FIG. 6. In FIG. 6, two panel supporting hardware is shown, but one or more panels can be installed according to the design. If the height of the outer wall of the structure is not so high, it is not necessary to install the panel supporting hardware.

When the lower precast concrete panel 100 is constructed while being connected to the left and right as described above, the upper precast concrete panel 200 is coupled to the upper surface of the lower precast concrete panel 100 by using a connection fit. . Since connection holes are formed in the connection jaws of the upper and lower surfaces of the lower and upper precast panels, the connecting rods are inserted into the connecting holes formed in the lower precast concrete panel. When the two are combined so as to be inserted into each other, they are firmly installed (the joint detail of the lower and upper precast concrete panels is indicated by a circle in FIG. 5). Each of the upper precast concrete panels are coupled to each other by a connection jaw formed on the left and right surfaces.

When connecting rods are inserted into both panels by using connection holes, the coupling is the same as that of the lower and upper precast panels, and the left and right couplings of the upper precast concrete panels are also connected to each other using a connection brace. Do.

When the panel assembly 610 is completed by assembling the lower and upper precast concrete panels 100 and 300, a space for forming an outer wall is formed between the earthen board and the panel, and a waterproof material (preferably powder type) is mixed in the space. The concrete is poured and cured to form a structure outer wall 610 together with the panel to build a plywood wall.

When the plywood is completed, as shown in Figure 9 to form a junction between the structure slab 630 and the beam (640, beam), but in the case of the beam may be installed by mounting on the inner pillar 650, the slab for the slab After installing the braces to form the formwork for deck plates or slabs and to cast concrete to build the slab. In other words, the bolts are fixed to the holes formed in the fixing steel for slabs such as L-shaped steel to the fasteners such as inserts formed on the upper surface of the upper precast concrete panel, and the corners are installed on the L-shaped steel and then plywood having a predetermined thickness. The same slab formwork is installed and the slab concrete is poured and cured to complete the slab.

As described above, when the structure outer wall 600 is installed in the form of a laminated wall using the outer wall body 620 and the panel assembly 610, problems such as water leakage may occur after construction. Although it can be solved, it is possible to prevent the leakage by installing the external index plate 660 between the outer wall of the structure and earthwork as shown in Figure 9c.

The present invention is designed by fitting prefabricated concrete panels manufactured under factory to the prefabricated concrete panels. The construction process is simple, so the quality control is easy and the parts can be modularized when designing the exterior walls. Simplified overall construction cost and defect repair cost is reduced, and precast concrete panel manufacturing is only suitable for the construction of urban area where the work site is difficult to secure because there is no need of material storage place for installing the exterior wall of the structure. When precast concrete panels are manufactured, electricity and facilities can be installed in advance, so that separate crushing and stone work can be eliminated for this purpose in the field, thereby ensuring continuity of work.

Claims (7)

A precast concrete panel having a predetermined thickness and having a hollow formed therein; A connection jaw fit formed with connection holes at upper and lower surfaces of the precast concrete panel; And Connecting jaw fittings formed on the left and right surfaces of the precast concrete panel; Structure exterior wall panel comprising a. The panel of claim 1, wherein a plurality of fasteners such as inserts are further formed on the front surface of the precast concrete panel. According to claim 1 or claim 2, The structure exterior wall panel, characterized in that the interior of the precast concrete panel is further formed with electrical, plumbing piping. According to claim 1 or claim 2, Various patterns are further formed on the front surface of the precast concrete panel, the structure exterior wall panel, characterized in that further formed irregularities for reinforcing concrete attachment further. Structure outer wall; A standard structure outer wall panel which is installed in contact with the outer wall body and includes a precast concrete panel having a hollow formed therein and a connection jaw formed at left and right sides of the precast concrete panel; And a joining wall structure coupled to each other, wherein each of the standard structure wall panels is a structure outer wall panel assembly structure, wherein the left and right connection jaws are engaged with each other. Structure outer wall; It is installed on the lower surface in contact with the outer wall body, the precast concrete panel hollow is formed inside, the connection jaw formed in the connection hole formed in the upper surface of the precast concrete panel and the connection formed on the left and right surfaces of the precast concrete panel A lower structure outer wall panel including a jaw fitting; The precast concrete panel, which is installed in the upper surface of the outer wall panel for the lower structure and in contact with the outer wall body, the hollow hollow is formed inside, the connection jaw formed with a connection hole in the lower surface of the precast concrete panel and the precast concrete panel seat The upper structure outer wall panel including a connection jaw formed on the right side; The lower and upper structure outer wall panel is coupled to each other by a connecting auxiliary fitting inserted into the connection hole formed in the connecting jaw fit, while the lower and upper structure outer wall panel is engaged with each other, Each of the lower and upper structure wall panels is a structure outer wall panel assembly structure, characterized in that the left, right connecting jaw fit is engaged with each other. The precast concrete panel of claim 6, wherein the hollow includes a precast concrete panel, a connection jaw formed on the upper and lower surfaces of the precast concrete panel, and a connection jaw formed on the left and right sides of the precast concrete panel. The intermediate structure outer wall panel is further coupled between the upper structure outer wall panel and the lower structure outer wall panel, the upper and lower structure outer wall panel and the intermediate structure outer wall panel is engaged with each other, the upper and lower joints And are connected to each other by connecting auxiliary prostheses inserted into the connecting holes formed in the connecting jaw, wherein the upper, middle, and lower structure wall panels are coupled to each other while the left and right connecting jaws are engaged with each other. Exterior wall panel assembly structure.