Double wall structure capable of basic integrated construction and its construction method

Abstract

The present invention relates to a double-wall structure capable of connecting a double wall and a foundation, and a method of constructing the same. More specifically, the invention relates to a double-wall structure capable of integrated foundation construction and a method of constructing the same, wherein a double-wall structure prefabricated using a PC method is provided with an integrated connecting part capable of connecting to a foundation, thereby allowing the foundation and the double-wall structure to be easily connected as a single unit by means of a coupler. To this end, the present invention comprises a double-wall structure in which two walls are spaced apart to form a double-wall structure, a foundation portion installed on the ground to form the floor of the structure, a column portion that supports the end of the double wall when constructing the double-wall structure and can increase the support strength of the structure, an integrated connection portion provided at the bottom of the double-wall structure and connected integrally with the foundation portion, and a coupler that can connect the integrated connection portion and the foundation portion by a screw fastening structure.

Description

Technology Field

[0001] The present invention relates to a double-wall structure capable of connecting a double wall and a foundation, and a method of constructing the same. More specifically, the invention relates to a double-wall structure capable of integrated foundation construction and a method of constructing the same, wherein a double-wall structure prefabricated using a PC method is provided with an integrated connecting part capable of connecting to a foundation, thereby allowing the foundation and the double-wall structure to be easily connected as a single unit by means of a coupler. Background Technology

[0002] Generally, when constructing a structure, a foundation is constructed on the ground, walls are constructed vertically from the foundation to form the structural space, and a slab is constructed on top of it to complete the structure.

[0003] Previously, all such constructions were carried out using the on-site casting method; however, recently, the PC method, which shortens construction time by prefabricating PC panels such as PC walls, slabs, and girders, transporting them to the site, and assembling and installing them on-site, is being widely used.

[0004] Conventional PC walls consist of a single body, making it difficult to ensure vertical uprightness during on-site installation; consequently, accidents such as PC panels tipping over frequently occur during construction.

[0005] Accordingly, the PC double wall method is being used, which connects two PC panels as a single unit to reduce weight at the site, thereby facilitating mobility, ensuring uprightness, and improving constructability.

[0006] However, when constructing a double wall, separate reinforcing bars are required to connect the foundation and the double wall, and since these bars must be individually wrapped with wire to secure them, the work becomes difficult and causes delays in the construction period.

[0007] In this regard, prior art document 1 (Published Patent 10-2018-0055035 Civil engineering retaining wall structure using large precast double wall and method of construction thereof) discloses a configuration in which, when connecting a PC retaining wall to a foundation floor surface, a plurality of vertical reinforcing bars are installed on the foundation floor so that the vertical reinforcing bars are inserted into the PC retaining wall and integrated by pouring concrete.

[0008] However, prior art 1 requires connecting the vertical reinforcing bars and the PC retaining wall with wire to ensure a secure connection, but this process creates a problem where a secure connection is difficult due to the limited space inside the PC retaining wall.

[0009] In addition, if only concrete is poured without reinforcing bar connections, a problem arises in that sufficient load-bearing capacity cannot be secured. Prior art literature

[0010] Korean Patent Publication No. 10-2018-0055035 (Published May 25, 2018) The problem to be solved

[0011] The present invention was devised to solve the above-mentioned problems, and aims to provide a double-wall structure capable of foundation integration construction that facilitates construction and increases support capacity by configuring a double-wall structure in which two walls forming a double wall are integrated while separated by an intermediate connecting member, and applying a structure that can be integrated with horizontal reinforcing bars placed in the foundation to the lower part of the double-wall structure. means of solving the problem

[0012] A double-wall structure capable of foundation integration construction according to an embodiment of the present invention for solving the above-mentioned problems comprises: a double-wall structure in which two walls form a double-wall structure with a certain spacing; a foundation portion installed on the ground to form the floor of the structure; a column portion that supports the end of the double wall when constructing the double-wall structure and can increase the support strength of the structure; an integrated connection portion provided at the bottom of the double-wall structure and connected integrally with the foundation portion; and a coupler capable of connecting the integrated connection portion and the foundation portion by a screw fastening structure.

[0013] Herein, the double-wall structure is characterized by comprising: double-wall connecting reinforcing bars that integrally connect two spaced-apart walls; wall main reinforcing bars that are cured together at regular intervals in the vertical direction of the two walls to reinforce the vertical strength of the walls; horizontal reinforcing bars that are cured together at regular intervals in the horizontal direction of the two walls to reinforce the horizontal strength of the walls; and a foundation connecting through-hole formed outward from the bottom of the double-wall structure and capable of being integrally connected to the foundation.

[0014] At this time, the foundation is characterized by including reinforcing bars provided in multiple numbers at regular intervals to reinforce the strength of the foundation, and threaded reinforcing bars provided in multiple numbers at regular intervals in a direction perpendicular to the reinforcing bars to reinforce the foundation and simultaneously inserted into the foundation connection penetration holes of the double-wall structure and integrally connected.

[0015] In addition, the above-mentioned coupler is installed in the base connection through-hole and is characterized by having fastening screw threads formed on each side.

[0016] Herein, the integrated connecting portion is characterized by comprising a bent portion that is bent toward the outer side of the double-wall structure from the lower part of the wall main reinforcing bar and has a coupler connecting screw thread formed at its end for engaging with the coupler's connecting screw thread, and a horizontal integrated reinforcing bar that is provided to extend toward the inner side of the double-wall structure from the lower part of the double-wall structure and has coupler connecting screw threads formed at both ends for engaging with the coupler's connecting screw thread.

[0017] Alternatively, it is characterized by including a coupler connecting thread that extends from the above-mentioned bending portion in an outer direction of the double-wall structure and engages with the connecting thread of the coupler.

[0018] Here, the double-wall structure is characterized by enabling foundation integration construction, wherein a support reinforcement member is further provided at the bottom and is integrally connected to the foundation by the support reinforcement member.

[0019] The above-described coupler is equipped with a direct connection pipe structure, and the fastening screw threads are formed in opposite directions toward the foundation side and the double-wall structure side, respectively, so that when the coupler is rotated in the fastening direction, the coupler connecting screw threads and the screw reinforcing bar are fastened simultaneously in the fastening direction.

[0020] The above coupler is characterized by being applied as an individual fastener that allows for individual connection to the double-wall structure side and the foundation side, respectively.

[0021] Here, the individual fasteners are configured such that a foundation-side fastener, which is fastened to the foundation side, and a double-wall fastener, which is fastened to the double-wall structure side, are each individually rotated and fastened, and a rotatable support member is provided between the foundation-side fastener and the double-wall fastener to rotatably support the foundation-side fastener and the double-wall fastener so that they do not separate from each other.

[0022] At this time, the base-side fastening portion includes a base-side fastening nut portion having a polygonal structure so that it can be fastened using a tool when fastened to the base-side, and a base-side rotational coupling portion coupled to the inside of the rotational support member so that it is rotated by the rotational support member and is not separated; and the double-wall-side fastening portion includes a double-wall fastening nut portion having a polygonal structure so that it can be fastened using a tool when fastened to the double-wall structure, and a double-wall rotational coupling portion coupled to the inside of the rotational support member so that it is rotated by the rotational support member and is not separated; and the rotational support member is characterized by having a coupling portion rotation groove formed on its inside so that the base-side rotational coupling portion and the double-wall rotational coupling portion are rotatably coupled.

[0023] In addition, the aforementioned base-side fastening portion and double-wall-side fastening portion are characterized by forming an inclined surface that narrows toward the outside, and having an insertion-guiding inclined portion formed so that it can be inserted into the base connection through-hole when combined with the double-wall structure.

[0024] The double-wall structure includes a double-wall structure installation mold detachably coupled to the outer surface of the outer wall of the double-wall structure, wherein the double-wall structure installation mold comprises a main body portion configured with a size and shape corresponding to the outer wall of the double-wall structure, a plurality of insert connection holes formed through the main body portion at predetermined positions and corresponding to the position and number of insert holes formed on the outer surface of the outer wall of the double-wall structure, and a lifting hook integrally formed on the upper part of the main body portion and on the inner surface or upper part of the inner wall of the double-wall structure.

[0025] A method for constructing a double-wall structure capable of integrated foundation construction comprises: a foundation construction step of constructing a foundation portion on the ground where the structure is to be constructed; a column installation step of installing a column portion above the foundation portion; a double-wall structure joining step of joining a double-wall structure above the foundation portion; an integrated connection step of integrally connecting the foundation portion and the double-wall structure; a girder installation step of installing a girder above the column portion; a slab construction step of constructing a slab above the girder and the double-wall structure installed; and a concrete pouring step of pouring concrete at the connection portions of the structures forming the structure.

[0026] Herein, the integrated connection step is characterized by including a double-wall coupler connection step of connecting a coupler to a double-wall structure while the double-wall structure is vertically connected to a base, and a base coupler connection step of connecting a base to a coupler while the coupler is connected to the double-wall structure.

[0027] And the above concrete pouring step is characterized by including a foundation concrete pouring step for pouring concrete at the point where the foundation and the double-wall structure meet vertically and at the foundation, a wall concrete pouring step for pouring concrete into the inner space of the double-wall structure, and a topping concrete pouring step for pouring topping concrete onto the upper part where the slab has been constructed.

[0028] Meanwhile, since the description of the technology disclosed in this specification is merely an example for structural or functional explanation, the scope of the disclosed technology should not be interpreted as being limited by the examples described in the text. That is, since the examples are subject to various modifications and may take various forms, the scope of the disclosed technology should be understood to include equivalents capable of realizing the technical concept. Furthermore, since the purposes or effects presented in the disclosed technology do not imply that a specific example must include all of them or only such effects, the scope of the disclosed technology should not be understood as being limited by them.

[0029] Furthermore, the meaning of the terms described in this invention should be understood as follows. Terms such as "first," "second," etc., are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component.

[0030] Furthermore, when it is stated that one component is "connected" to another component, it should be understood that while it may be directly connected to that other component, there may also be other components in between. Conversely, when it is stated that one component is "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationships between components, such as "between" and "between," or "adjacent to" and "directly adjacent to," should be interpreted in the same way.

[0031] A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the set-up features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Effects of the invention

[0032] The double-wall structure capable of foundation integration construction according to one embodiment of the present invention and the method of construction thereof have the effect of facilitating integrated connection with horizontal reinforcing bars placed in the foundation using a coupler by forming a separate connection part at the lower part of the vertical reinforcing bars of the double-wall wall so as to be connected to the foundation.

[0033] In addition, the coupler utilizes a screw-threaded connection structure to facilitate the connection between the double-wall structure and the foundation, thereby effectively shortening the construction time.

[0034] In addition, directly connecting the horizontal reinforcing bars placed in the foundation to the lower part of the double-wall structure with couplers has the effect of increasing the support strength. Brief explanation of the drawing

[0035] FIGS. 1 and 2 are cross-sectional views illustrating a combined structure of a double-wall structure capable of foundation-integrated construction according to an embodiment of the present invention. FIGS. 3A and 3B are cross-sectional views illustrating a combined structure of a double-wall structure capable of foundation-integrated construction according to another embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating the construction on the upper surface of the foundation portion of a double-wall structure capable of foundation integration construction according to another embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating a load-bearing reinforcement section of a double-wall structure capable of foundation-integrated construction according to an embodiment of the present invention. FIGS. 6a to 6f are exemplary drawings illustrating a state in which a double-wall structure and a foundation part are integrally combined, of a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 7 is a fastening state diagram illustrating a state in which the screw threads of a coupler are formed in opposite directions on both sides in a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 8 is an embodiment illustrating a state in which couplers are applied in a structure in which each direction is individually connected in a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 9 is an embodiment illustrating a joint formed by a continuous arrangement of a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIGS. 10 and 11 are exemplary drawings illustrating a double-wall structure installation mold capable of foundation integration construction according to an embodiment of the present invention. FIG. 12 is a process example diagram sequentially illustrating the entire process of a method for constructing a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 13 is an overall process flow diagram of a method for constructing a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 14 is a process diagram specifically illustrating the integrated connection step in a construction method for a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. FIG. 15 is a process flow diagram specifically illustrating the concrete pouring step in a method for constructing a double-wall structure capable of foundation integration construction according to an embodiment of the present invention. Specific details for implementing the invention

[0036] The present invention will be described in more detail below with reference to preferred embodiments to which it belongs.

[0037] FIGS. 1 and 2 are cross-sectional views illustrating the combined structure of a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0038] Referring to FIGS. 1 and 2, the double-wall structure (100) of the present invention is manufactured in advance as PC (Precast Concrete) in a factory, and is produced as a double-wall structure (100) that forms an integrated structure by being spaced apart at a certain distance by double-wall connecting reinforcing bars (110) that form a space inside by being spaced apart at a certain distance.

[0039] The double wall connecting reinforcing bar (110) that integrates the above double wall structure (100) is composed of a W-bar reinforcing bar (111) formed by continuously bending into a W shape, and a plurality of horizontal connecting reinforcing bars (112) that are spaced apart at regular intervals along the height direction of the double wall structure (100).

[0040] At this time, the horizontal connecting reinforcing bar (112) is formed such that both ends are bent into an L-shape for connection with the wall main reinforcing bar (120) or horizontal reinforcing bar (130) described later, or one end is bent into an L-shape and the other end is formed to have a predetermined angle corresponding to the bending angle of the W-bar reinforcing bar (110).

[0041] The above-mentioned horizontal connecting bar (112) may be composed of a straight horizontal connecting bar (113) with a straight shape that is not bent at both ends, depending on the purpose or situation of the construction site.

[0042] Here, the structure is configured to include a plurality of wall reinforcing bars (120) that are cured together at regular intervals in the vertical direction within the wall forming the double wall structure (100) to reinforce strength.

[0043] The structure is configured to include horizontal reinforcing bars (130) that are cured together with the main reinforcing bars (120) of the wall at regular intervals in the horizontal direction to reinforce the horizontal strength of the wall. The main reinforcing bars (120) of the wall and the horizontal reinforcing bars (130) are arranged to form a grid shape that intersects each other, thereby reinforcing the strength of the double wall structure (100).

[0044] As a result, constructability can be improved by manufacturing a double-wall structure, in which two walls are spaced apart to form an internal space, using PC and installing it on-site.

[0045] The above double wall structure (100) is vertically seated in a seating groove formed in the lean concrete (10) poured on the ground, and the reinforcing bar (210) of the foundation part (200) described later and the integrated connection part (400) of the double wall structure (100) are integrally joined by a coupler (500) so that construction can be performed.

[0046] When the above double wall structure (100) is vertically seated on the lean concrete (10), it is configured to include a double wall fixing bracket (170) in which the vertical surface is connected to the lower outer surface of the double wall structure (100) and the horizontal surface is connected to the upper surface of the lean concrete (10).

[0047] The above double wall fixing bracket (170) is intended to stably fix the double wall structure (100) vertically to the lean concrete (10) during construction, and is fixed by being embedded inside the foundation (200) during the construction of the foundation (200).

[0048] FIGS. 3a and 3b are cross-sectional views illustrating the combined structure of a double-wall structure capable of foundation integration construction according to another embodiment of the present invention.

[0049] Referring to FIGS. 3a and 3b, when the double wall structure (100) is vertically seated on the upper surface of the foundation (200), one side of the support (160) is fixed to the outer surface of the double wall structure (100) and the other side is fixed to the upper surface of the foundation (200), thereby enabling stable support of the double wall structure (100).

[0050] Here, the base portion (200) is formed by bending it into an L-shape so that a vertical fixing reinforcing bar (230) is embedded therein, and the horizontal portion of the vertical fixing reinforcing bar (230) is embedded inside the base portion (200), and the vertical portion is formed to protrude so as to be located in the inner space of the double wall structure (100).

[0051] As a result, when on-site concrete is poured into the empty inner space of the double wall structure (100), the vertical portion of the vertical fixing reinforcing bar (230) located in the inner space of the double wall structure (100) and the on-site concrete become integrated, thereby ensuring integration between the double wall structure (100) and the foundation (200).

[0052] FIG. 4 is a cross-sectional view illustrating the construction of a double-wall structure on the upper surface of the foundation portion, which enables foundation integration construction according to another embodiment of the present invention.

[0053] Referring to FIG. 4, when the double wall structure (100) is placed on the upper surface of the foundation part (200), the double wall fixing bracket (170) is fixed to the lower outer surface of the double wall structure (100) using the upper surface of the foundation part (200).

[0054] At this time, a pair of vertical fixing reinforcing bars (230), which are formed by bending into an L-shape and consist of a horizontal section and a vertical section, are embedded in the foundation section (200). The horizontal section of the vertical fixing reinforcing bar (230) is embedded inside the foundation section (200), and the upper part of the vertical section is formed to protrude so as to be located in the inner space of the double-wall structure (100).

[0055] Afterwards, when on-site concrete is poured into the empty inner space of the double wall structure (100), the vertical portion of the vertical fixing reinforcing bar (230) located in the inner space of the double wall structure (100) and the on-site concrete become integrated, thereby ensuring integration between the double wall structure (100) and the foundation (200).

[0056] Meanwhile, on one or more of the inner or outer sides of the double-wall structure (100), a waterproof sheet (180) having a predetermined thickness and for waterproofing function is additionally configured.

[0057] An adhesive is applied to one side of the waterproof sheet (180) that contacts the double-wall structure (100) to bond with the double-wall structure (100), and if necessary, the double-wall structure (100) is joined using a separate fastening member.

[0058] The waterproof sheet (180) can be composed of any one of EPDM (Ethylene Propylene Diene Monomer), PVC, TPO, HDPE, or asphalt-based materials depending on the environment of the construction site or the purpose of use.

[0059] FIG. 5 is a cross-sectional view illustrating a load-bearing reinforcement section of a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0060] Referring to FIG. 5, the double wall structure (100) and the foundation (200) are constructed so that the integrated connection part (400) and the reinforcing bar (210) are integrally combined through the coupler (500).

[0061] At this time, a foundation connection through hole (140) is formed in the lower part of the double-wall structure (100) so as to be formed through one or both sides of the double-wall structure (100) and connected to a coupler (500), through which a reinforcing bar (210) of the foundation part (200) can be connected through the coupler (500).

[0062] The foundation part (200) is provided with reinforcing bars (210) arranged at regular intervals to reinforce the support force from the ground, and is configured to include threaded reinforcing bars (220) formed on one or both sides with threads (221) formed thereon, arranged at regular intervals in a vertical direction with respect to the reinforcing bars (210) to reinforce the foundation part (200) and simultaneously inserted into a coupler (500) coupled to the foundation connection through hole (140) of the double wall structure (100) to be integrally connected.

[0063] The reinforcing bar (210) and the threaded reinforcing bar (220) are arranged to form a grid shape that intersects each other, thereby reinforcing the strength of the foundation part (200) and reinforcing the bonding strength with the double wall structure (100) and supporting it.

[0064] And the above double-wall structure (100) and the foundation part (200) are integrally joined by a coupler (500). First, the coupler (500) is installed in the foundation connection through hole (140), and on both sides of the coupler (500), a connecting screw thread (510) is formed for connecting the integrated connecting part (400) and the reinforcing bar (210).

[0065] Here, the integrated connection part (400) is bent toward the outside of the double wall structure (100) from the lower part of the wall main reinforcing bar (120) to form a bent part (410) that can improve structural stability when integrated with the foundation part (200).

[0066] The above-mentioned bent portion (410) is bent from the wall main reinforcing bar (120) to be horizontal with the threaded reinforcing bar (220) of the foundation portion (200), thereby becoming integrated with the foundation portion (200) supported on the ground and increasing structural stability.

[0067] At this time, the coupler connecting screw thread (411) formed on one side of the hook portion (410) and the screw thread (221) formed on one side of the screw thread reinforcing bar (220) are each connected to the fastening screw thread (510) of the coupler (500).

[0068] And the above double wall structure (100) is configured to extend from the bottom toward the foundation connection through hole (140) and includes a horizontal integrated reinforcing bar (420) having a coupler connection thread (421) formed at both ends that is connected to the fastening thread (510) of the coupler (500).

[0069] The above horizontal integrated reinforcing bar (420) is provided vertically and horizontally so as to be horizontal with the foundation part (200), and by being connected integrally with the threaded reinforcing bar (220) of the foundation part (200) by a coupler (500), the double wall structure (100) and the foundation part (200) can be constructed as a single unit.

[0070] As described above, when the double wall structure (100) and the foundation part (200) are connected as a single unit, concrete is poured onto the upper surface of the foundation part (200), including the connection part, thereby enabling the construction to be performed as a single unit to improve structural stability.

[0071] A supporting force reinforcing member (150) is further provided at the lower part of the double wall structure (100), and a foundation connection through hole (140) is formed to penetrate toward the outside of the supporting force reinforcing member (150), so that the double wall structure (100) can be stably maintained upright by the supporting force reinforcing member (150) and can be integrally connected with the foundation member (200) by the supporting force reinforcing member (150).

[0072] At this time, the horizontal integrated reinforcing bar (420) is provided at an upper position corresponding to the threaded reinforcing bar (220) of the foundation part (200), and is bent from the wall main reinforcing bar (120) at its lower end and extends toward the foundation part (200), and a coupler connecting thread (420) can be formed at the bent end.

[0073] Accordingly, the main reinforcing bar (120) of the wall and the threaded reinforcing bar (220) of the foundation (200) are directly connected by a coupler (500), thereby creating an integrated connection between the double wall structure (100) and the foundation (200), and structural stability can be increased by the support strength reinforcing part (150).

[0074] FIGS. 6a to 6f are exemplary drawings illustrating a state in which a double-wall structure and a foundation part are integrally combined, of a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0075] First, referring to FIG. 6a, the bend portion (410) is formed by extending from the wall main reinforcing bar (120) and is bent in a direction that is horizontal with the foundation portion (200) at the bottom of the double wall structure (100), and the bend portion (410) of the outer wall and the bend portion (410) of the inner wall are arranged to intersect each other, and the end of the bend portion (410) is embedded and fixed into the interior of the adjacent inner and outer walls.

[0076] Coupler connection threads (421) are formed at both ends of the horizontal integrated reinforcing bar (420), and through the coupler connection threads (421), the horizontal integrated reinforcing bar (420) can be screw-coupled to the fastening thread (510) of a coupler (500) located on the same line as the horizontal integrated reinforcing bar (420), so that the horizontal integrated reinforcing bar (420) can be connected on the same line as the threaded reinforcing bar (220) of the foundation part (200).

[0077] In addition, the horizontal integrated reinforcing bar (420) is configured with a double structure arranged horizontally in the upper and lower directions, and the coupler (500) is also arranged with a double structure arranged in the upper and lower directions to correspond to the horizontal integrated reinforcing bar (420), thereby connecting to the threaded reinforcing bar (220) of the foundation part (200) in the same line through the coupler (500).

[0078] Referring to FIG. 6b, a coupler connecting screw thread (411) is formed at the end of the bent portion (410) and is fixed by being embedded into the interior of the adjacent inner and outer walls. The coupler connecting screw thread (411) of the bent portion (410) is connected to the coupler (500) located at the bottom among the couplers (500) arranged at the top and bottom, and can be connected in line with the screw thread reinforcing bar (220) arranged at the top inside the foundation portion (200).

[0079] The coupler connection thread (421) of the horizontal integrated reinforcing bar (420) can be connected to the fastening thread (510) of the coupler (500) located above, and can be connected in line with the threaded reinforcing bar (220) of the foundation part (200).

[0080] Referring to FIG. 6c, the bent portion (410) is formed by extending from the inner wall reinforcing bar (120) of the outer wall and is fixed by being embedded into the interior of the inner wall, and the coupler connecting screw thread (421) formed at the end of the bent portion (410) is fixed by being screwed into the fastening screw thread (510) of the coupler (500) located on the same line.

[0081] At this time, a J-shaped auxiliary bend (430) formed in the same direction as the bend (410) is additionally embedded within the outer wall, and a coupler connection screw thread (431) is formed at the end of the J-shaped auxiliary bend (430) and is fixed by screw coupling to the fastening screw thread (510) of the coupler (500) located on the same line.

[0082] That is, the bent portion (410) extending from the main reinforcing bar (120) of the wall is coupled with the coupler (500) located at the bottom among the couplers (500) arranged at the top and bottom, and the auxiliary bent portion (410) is coupled with the coupler (500) located at the top, so that it can be connected in alignment with the threaded reinforcing bar (220) of the foundation portion (200).

[0083] Referring to FIG. 6d, a bending portion (410) is continuously formed at the lower part of the wall main reinforcing bar (120) that is embedded in the inner and outer walls of the double wall structure (100), so that the shape of the wall main reinforcing bar (120) and the bending portion (410) are connected in a U-shape.

[0084] That is, the bent portion (410) extending from the lower part of the main reinforcing bar (120) of the inner wall and the bent portion (410) extending from the lower part of the main reinforcing bar (120) of the outer wall can be connected to each other.

[0085] At this time, the horizontal integrated reinforcing bar (420) is composed of a plurality of rows at the bottom of the double wall structure (100), and a coupler connecting thread (421) is formed at both ends of the horizontal integrated reinforcing bar (420) that is aligned with the threaded reinforcing bar (220) of the foundation part (200), so that it can be connected to the threaded reinforcing bar (220) by a coupler (500).

[0086] Referring to FIG. 6e, the bent portion (410) is formed by extending from the wall main reinforcing bar (120) and is bent in a direction that is horizontal with the foundation portion (200) at the bottom of the double wall structure (100), and the bent portion (410) of the outer wall and the bent portion (410) of the inner wall are arranged to intersect each other, and the end of the bent portion (410) is embedded and fixed into the interior of the adjacent inner and outer walls.

[0087] The above horizontal integrated reinforcing bar (420) can be combined with a coupler (500) located on the same line and connected on the same line as the threaded reinforcing bar (220) of the foundation part (200).

[0088] At this time, a U-shaped auxiliary bending part (440) formed in a U shape, with one side embedded inside the inner wall of the double wall structure (100) and the other side embedded inside the outer wall of the double wall structure (100), may be additionally configured.

[0089] That is, the U-shaped auxiliary bend (440) is configured at the bottom of the double-wall structure (100) and is configured so that both ends are embedded inside the inner and outer walls, respectively.

[0090] Referring to FIG. 6f, the bent portion (410) is formed by extending from the inner wall main reinforcing bar (120) of the outer wall and is fixed by being embedded into the interior of the inner wall, and both ends of the horizontal integrated reinforcing bar (420) are fixed by being embedded into the interior of the inner wall and the outer wall, respectively.

[0091] At this time, the J-shaped auxiliary bending part (430) is arranged vertically and continuously at the bottom of the double-wall structure (100) to form a vertical section, with one end embedded and fixed inside the outer wall, and the bent horizontal section embedded and fixed inside the inner wall, so that it can be connected through a coupler (500) formed in the inner wall and positioned on the same line as the threaded reinforcing bar (220) of the foundation part (200).

[0092] According to this embodiment, the bent portion (410) and horizontal integrated reinforcing bar (420) extending from the double wall structure (100) are positioned in alignment with the threaded reinforcing bar (220) of the foundation portion (200) through the coupler (500) and are connected integrally, thereby ensuring structural stability by securing the support force and integrality of the double wall structure (100) with the foundation portion (200).

[0093] FIG. 7 is a fastening state diagram illustrating a state in which the screw threads of a coupler are formed in opposite directions on both sides in a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0094] Referring to FIG. 7, the coupler (500) is provided with a direct connection pipe (520) structure in the form of a single pipe, and the connecting screw thread (510) is formed in opposite directions toward the base part (200) and the double wall structure (100), respectively, so that when the coupler (500) is rotated in the connecting direction, the coupler connecting screw thread (420) formed in the integrated connecting part (400) and the screw thread reinforcing bar (220) formed in the base part (200) are simultaneously connected in the connecting direction, so that the coupler (500) can be easily connected in one operation.

[0095] FIG. 8 is an exemplary diagram illustrating a double-wall structure capable of foundation integration construction according to an embodiment of the present invention, in which a coupler is applied in a structure in which each direction is individually connected.

[0096] Referring to FIG. 8, the foundation (200) and the double-wall structure (100) may not be fastened simultaneously, but may be fastened individually depending on the situation, or an individual fastening device (530) may be applied so that when transporting the double-wall structure (100) to the site after production, it can be transported with the double-wall structure side already fastened in advance.

[0097] Here, the individual fastener (530) may each be provided with a foundation-side fastener (531) that rotates and is fastened to the foundation part (200) and a double-wall-side fastener (532) that rotates and is fastened to the double-wall structure (100).

[0098] And between the base-side fastening part (531) and the double-wall-side fastening part (532), a rotatable support member (533) is provided to rotatably support the base-side fastening part (531) and the double-wall-side fastening part (532) so that they are not separated from each other.

[0099] The above-mentioned rotating support member (533) is provided in a ring shape with a diameter slightly larger than that of the base-side fastening part (531) and the double-wall-side fastening part (532), so that when fastening the base-side fastening part (531) and the double-wall-side fastening part (532) respectively, the section where the tool is used can be clearly demarcated to prevent the tool from coming off, and interference with other reinforcing bars and structures can be minimized when the double-wall structure (100) or the base part (200) is fastened.

[0100] At this time, the base-side fastening part (531) may be configured to include a base-side fastening nut part (531a) that forms a polygonal structure so that it can be firmly fastened using a tool when fastened to the base-side (200), and a base-side rotational coupling part (531b) that is coupled to the inside of the rotational support member (533) and rotated by the rotational support member (533) so as not to be separated.

[0101] And the double wall side fastening part (532) may be configured to include a double wall fastening nut part (532a) that forms a polygonal structure so that it can be firmly fastened using a tool when fastened to the double wall structure (100), and a double wall rotational coupling part (532b) that is coupled to the inside of the rotational support member (533) and rotated by the rotational support member (533) so as not to be separated.

[0102] At this time, the base fastening nut part (531a) and the double wall fastening nut part (532a) are formed in a hexagonal or octagonal structure so that they can be firmly fastened in a fixed state without slipping when using a tool such as a spanner or monkey wrench.

[0103] And the above-mentioned rotational support member (533) has a rotational groove (533a) formed on its inner side to which the base rotational coupling part (531b) and the double wall rotational coupling part (532b) are rotatably coupled, forming a structure that surrounds the outer side of the base rotational coupling part (531b) and the double wall rotational coupling part (532b), and accordingly, the base rotational coupling part (531b) and the double wall rotational coupling part (532b) are individually fastened to both sides while supported by the rotational support member (533), thereby enabling the base part (200) and the double wall structure (100) to be easily integrated and constructed.

[0104] Meanwhile, the above-mentioned base-side fastening part (531) and double-wall-side fastening part (532) may form an inclined surface that narrows toward the outside, and may have an insertion-guiding inclined part (534) formed to guide smooth insertion into the base connection through hole (140) when combined with the double-wall structure (100).

[0105] The above insertion guide slope portion (534) has a diameter smaller than that of the base connection through hole (140) at its end and forms a sloped surface with a diameter that increases as it moves toward the rotational support member (533), so that it can be smoothly inserted and connected without getting caught in the base connection through hole (140) depending on the degree of connection.

[0106] FIG. 9 is an embodiment illustrating a double-wall structure capable of foundation integration construction according to an embodiment of the present invention, in a continuously arranged and integrated state.

[0107] Referring to FIG. 9, a double-wall structure (100) is arranged continuously along the width direction, and a first double-wall structure (100) located on one side and a second double-wall structure (100) located on the other side are adjacent to each other to form a joint, and a double-wall structure connecting member (600) is formed at the joint so that the first double-wall structure (100) and the second double-wall structure (100) can be connected integrally.

[0108] At this time, the joint between the first double-wall structure (100) and the second double-wall structure (100) forms a space separated by a predetermined distance, and a waterproofing material (610) for backup and caulking is configured in the space to ensure watertightness of the double-wall structure (100).

[0109] And a connecting plate (620) is formed at the joint, with one side connected to one side of the first double-wall structure (100) and the other side connected to the other side of the second double-wall structure (100). At this time, the connecting plate (620) is fastened on-site by a fastening member including a bolt and an anchor, thereby improving the watertightness of the joint of the continuously arranged double-wall structure (100).

[0110] FIGS. 10 and FIGS. 11 are exemplary drawings illustrating a double-wall structure installation mold capable of foundation integration construction according to an embodiment of the present invention.

[0111] Referring to FIGS. 10 and 11, a double-wall structure installation mold (700) is detachably coupled to the outer surface of the outer wall of the double-wall structure (100). The double-wall structure installation mold (700) is configured to include a main body part (710) having a size and shape corresponding to the outer wall of the double-wall structure (100), an insert connection hole (720) formed through the main body part (710) at a predetermined position of the main body part (710), and a plurality of lifting hooks (730) on the upper part of the main body part (710).

[0112] At this time, a plurality of insert holes (101) for connecting inserts are formed on the outer surface of the outer wall of the double wall structure (100), and the insert connection holes (720) are configured to correspond to the location and number of insert holes (101).

[0113] First, one side of the insert is inserted into an insert hole (101) formed on the outer surface of the outer wall of the double wall structure (100), and the double wall structure installation mold (700) is in close contact with the outer surface of the outer wall of the double wall structure (100), and the other side of the insert is inserted into an insert connection hole (720).

[0114] As the insert is formed to protrude further than the thickness of the double-wall structure installation mold (700), a bolt is fastened to the other side of the insert protruding into the insert connection hole (720) so that the outer wall of the double-wall structure (100) and the double-wall structure installation mold (700) can be integrally joined.

[0115] And the lifting hook (730) is configured on the upper part of the double-wall structure installation mold (700) and can be integrally formed on the inner surface or upper part of the inner wall of the double-wall structure (100). The wire of the tensioning equipment is installed through the lifting hook (730), and the double-wall structure (100) is placed on the upper part of the lean concrete (10) that is pre-set at the construction site, thereby connecting and fixing the lean concrete (100) and the double-wall structure (100).

[0116] At this time, the double wall structure (100) can be fixed to the upper part of the lean concrete (100) using a double wall fixing bracket (170). For the double wall structure (100) that has been fixed to the lean concrete (10), the double wall structure (100) can be stably installed by removing the bolts that fix the insert and then separating the double wall structure installation mold (700).

[0117] FIG. 12 is a process example diagram sequentially illustrating the entire process of a method for constructing a double-wall structure capable of foundation integration according to an embodiment of the present invention, and FIG. 13 is an entire process diagram of a method for constructing a double-wall structure capable of foundation integration according to an embodiment of the present invention.

[0118] Referring to FIGS. 12 and 13, the present invention includes a foundation construction step (S10) of constructing a foundation part (200) on the ground where the structure is to be constructed, a column installation step (S20) of installing a column part (300) on top of the foundation part (200), and a double wall structure joining step (S30) of joining a double wall structure (100) on top of the foundation part (200).

[0119] Meanwhile, depending on the construction method and the shape of the structure, the column installation step (S20) for installing the column part (300) can be omitted.

[0120] The above double-wall structure joining step (S30) allows the double-wall structure (100) to be joined so as to form a vertical direction above the foundation part (200), and the double-wall structure (100) to be supported by the column part (300) and constructed continuously in a lateral direction so as to form the entire wall of the structure according to the scale of the structure to be constructed.

[0121] And, while the above-mentioned foundation part (200) and double wall structure (100) are connected, the method includes an integrated connection step (S40) for connecting the foundation part (200) and the double wall structure (100) as a single unit, and a girder installation step (S50) for installing a girder on top of a column part (300) constructed on top of the foundation part (200).

[0122] Subsequently, the method includes a slab construction step (S60) for constructing a slab on top of the girder and double wall structure (100) installed thereon, and a concrete pouring step (S70) for pouring concrete into the connection parts of the structures forming the structure.

[0123] FIG. 14 is a process diagram specifically illustrating the integrated connection step in a method for constructing a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0124] Referring to FIG. 14, the integrated connection step (S40) includes a double wall coupler connection step (S41) in which a coupler (500) is connected to a coupler connection screw thread (420) of a double wall structure (100) while the double wall structure (100) is connected in a vertical direction to a foundation part (200), and a foundation coupler connection step (S42) in which a screw thread reinforcing bar (220) of a foundation part (200) is connected to a coupler (500) while the coupler (500) is connected to the double wall structure (100).

[0125] FIG. 15 is a process diagram specifically illustrating the concrete pouring step in a method for constructing a double-wall structure capable of foundation integration construction according to an embodiment of the present invention.

[0126] Referring to FIG. 15, the concrete pouring step (S70) includes a foundation concrete pouring step (S71) in which concrete is poured at the point where the foundation part (200) and the double wall structure (100) meet vertically and at the foundation part (200) while the foundation part (200) and the double wall structure (100) are integrally connected.

[0127] The above-mentioned foundation concrete pouring step (S71) can reinforce the foundation part (200) and make the connection between the double-wall structure (100) and the foundation part (200) more robust. Concrete is poured over the entire upper surface of the foundation part (200) and also poured up to the lower connection part of the double-wall structure (100).

[0128] And includes a wall concrete pouring step (S72) of pouring concrete into the empty inner space of the double wall structure (100).

[0129] The above wall concrete pouring step (S72) allows the strength of the wall to be reinforced by pouring concrete into the inner space of the double-wall structure (100), in which the two walls are spaced apart by double-wall connecting reinforcing bars (110).

[0130] Subsequently, it includes a topping concrete pouring step (S73) in which topping concrete is poured over the upper portion where the slab has been constructed.

[0131] The above topping concrete pouring step (S73) can be finished by integrating the slab constructed on the upper side where the double-wall structure (100) is constructed in the structure, and when constructing a multi-story structure, it forms the floor surface of the upper floor, and when constructing a single-story structure, it forms the roof.

[0132] Although the present invention has been described above with reference to preferred embodiments, those skilled in the art will understand that various modifications and changes can be made to the invention without departing from the spirit and scope of the invention as described in the following claims. Explanation of the symbols

[0133] 10: Lean concrete 100 : Double-wall structure 110: Double wall connecting rebar 120 : Main reinforcement for walls 130 : Horizontal reinforcement 140: Foundation connection through hole 150 : Bearing capacity reinforcement part 160 : Support 170 : Double wall fixing bracket 200 : Basic Section 210 : Reinforcing steel 220 : Threaded rebar 230: Vertical fixed reinforcing bar 300 : Pillar part 400 : Integrated connection part 410 : Bent section 420: Horizontal integrated reinforcement 500 : Coupler 510: Fastening threads 520 : Direct connection pipe 530 : Individual fastener 531: Foundation-side fastening part 531a : Foundation fastening nut part 531b : Base rotation joint 532 : Double-wall side fastening part 532a: Double-wall fastening nut part 532b : Double-wall rotating joint 533 : Rotating support member 533a : Rotating groove of the connecting part 534: Insertion guidance slope 600: Double-wall structure connecting member 610 : Waterproofing material 620 : Connecting plate 700 : Double-wall structure installation mold 710 : Main body 720 : Insert connection hole 730 : Lifting hook

Claims

Claim 1 A double-wall structure (100) in which two walls are spaced apart to form a double-wall structure; a foundation part (200) installed on the ground to form the floor of the structure; and an integrated connection part (400) provided at the bottom of the double-wall structure (100) and integrally connected to the foundation part (200). A double wall structure capable of foundation integration construction, comprising: a coupler (500) capable of connecting the integrated connection part (400) and the foundation part (200) by a screw fastening structure; wherein the integrated connection part (400) is bent toward the outside of the double wall structure (100) from the bottom of the wall main reinforcing bar (120), and a bent part (410) having a coupler connecting screw thread (411) formed at the end that is connected to the fastening screw thread (510) of the coupler (500); and a horizontal integrated reinforcing bar (420) which is provided to extend toward the inner side of the double wall structure (100) from the bottom of the double wall structure (100), and having a coupler connecting screw thread (421) formed at both ends that is connected to the fastening screw thread (510) of the coupler (500). Claim 2 A double wall structure capable of foundation integration construction according to claim 1, wherein the double wall structure (100) comprises: a double wall connecting reinforcing bar (110) that integrally connects two spaced walls; a plurality of wall main reinforcing bars (120) that are cured together at regular intervals in the vertical direction of the two walls to reinforce the vertical strength of the walls; a plurality of horizontal reinforcing bars (130) that are cured together at regular intervals in the horizontal direction of the two walls to reinforce the horizontal strength of the walls; and a foundation connecting through hole (140) that is formed through the lower part of the double wall structure (100) toward the outside and can be integrally connected to a coupler (500) and a foundation part (200). Claim 3 A double-wall structure capable of integrated foundation construction according to claim 2, characterized in that the foundation portion (200) comprises a plurality of reinforcing bars (210) arranged at regular intervals to reinforce the strength of the foundation portion (200), and a plurality of threaded reinforcing bars (220) arranged at regular intervals in a vertical direction with respect to the reinforcing bars (210) to reinforce the foundation portion (200) and simultaneously inserted into the foundation connection through-hole (140) of the double-wall structure (100) and integrally connected. Claim 4 A double-wall structure capable of foundation integration construction according to claim 1, comprising a double-wall structure installation mold (700) detachably coupled to the outer surface of the outer wall of the double-wall structure (100), wherein the double-wall structure installation mold (700) comprises a main body part (710) configured with a size and shape corresponding to the outer wall of the double-wall structure (100), insert connection holes (720) formed through a plurality of insert holes (101) formed at a predetermined position of the main body part (710) and corresponding to the position and number of insert holes formed on the outer surface of the outer wall of the double-wall structure (100), and a lifting hook (730) integrally formed on the upper part of the main body part (710) and on the inner surface or upper part of the inner wall of the double-wall structure (100). Claim 5 A method for constructing a double-wall structure capable of integrated foundation construction, characterized by comprising: a foundation construction step (S10) for constructing a foundation section (200) on the ground where the structure is to be constructed; a column installation step (S20) for installing a column section (300) on top of the foundation section (200); a double-wall structure connection step (S30) for connecting a double-wall structure (100) on top of the foundation section (200); an integrated connection step (S40) for connecting the foundation section (200) and the double-wall structure (100) as a whole; a girder installation step (S50) for installing a girder on top of the column section (300); a slab construction step (S60) for constructing a slab on top of the girder and the double-wall structure (100); and a concrete pouring step (S70) for pouring concrete at the connection portions of the structures forming the structure.

Images