Tie bolt member to prevent PC double wall bursting

Abstract

The present invention relates to a tie bolt member for preventing bursting of a PC double wall, and more specifically, to a tie bolt member for preventing bursting of a PC double wall in which a front PC panel and a rear PC panel are spaced apart by a certain distance, such as at the joint between the PC double walls when concrete is filled inside, due to failure to withstand the pouring pressure. A preferred embodiment of the present invention relates to a tie bolt member for preventing bursting of a PC double wall comprising a front PC panel and a rear PC panel in the shape of a vertical plate positioned parallel to and spaced apart from the front PC panel at a certain distance, comprising: a base plate in the shape of a horizontal plate; a fixing member formed on the upper surface of the base plate and having a nut hole of a certain depth formed therein; a fastening bolt formed by bolting at each of the longitudinal ends, with the lower end of which is fastened to the fixing member; and a nut fastened to the upper end of the fastening bolt. The base plate and the fixing member are embedded on both sides in the width direction of the front PC panel such that the upper end of the fixing member is exposed on the inner surface of the front PC panel, and a through hole is formed in the rear PC panel to insert the fastening bolt through the through hole and fasten it to the fixing member, and to fasten it with a nut from the outside of the rear PC panel.

Description

Technology Field

[0001] The present invention relates to a tie bolt member for preventing bursting of a PC double wall, and more specifically, to a tie bolt member for preventing bursting of a PC double wall in which a front PC panel and a rear PC panel are spaced apart by a certain distance, such as at the joint between the PC double walls when concrete is filled inside, due to failure to withstand the pouring pressure. Background Technology

[0002] The Double Wall PC method is generally known for its rapid construction and cost-effectiveness. This method consists of two PC panels; after on-site assembly, concrete is poured in the middle of the wall to ensure structural integrity between the floor slab and the wall. Consequently, it is a system that maximizes the advantages of both the assembly elements of the components and the on-site casting method, thereby enhancing structural safety and usability. As such, the Double Wall PC method offers not only excellent constructability through simplified joints and enhanced structural performance at the joints achieved through structural integrity, but also advantages such as the elimination of the need for supports and wall pad mortar at both ends of the PC slab, reduced transportation and crane costs due to its light weight, improved sound insulation, and the absence of the need for special interior finishing through the use of spray plaster.

[0003] However, in the case of such double-wall PC construction methods, concrete is poured between two PC panels. At this time, there was a problem where the ends of the two PC panels would burst due to their inability to withstand the pouring pressure, and particularly when the double-wall PC was constructed perpendicularly, bursting defects occurred even more frequently.

[0004] The technology forming the background of the present invention is Patent Registration No. 1933471, "Double wall including inner and outer panels equipped with connecting members using corrugated reinforcing bars" (Patent Document 1).

[0005] The above background technology includes inner and outer panels (11, 12) arranged parallel to each other so as to be spaced apart in the front-rear direction, and a plurality of connecting members (20) configured to extend in the front-rear direction and having both ends fixedly connected to adjacent surfaces of the inner and outer panels (11, 12); wherein the inner and outer panels (11, 12) are in a double wall manufactured by a precast method, the connecting members (20) are fixed so as to be embedded inside the inner and outer panels (11, 12), and a plurality of reinforcing bars are bent in a corrugated shape, a protrusion (16) is formed on one side of the inner and outer panels (11, 12), and a coupling groove (17) into which the protrusion (16) is inserted is formed on the other side of the inner and outer panels (11, 12), and a fastening member (30) provided in the coupling groove (17) is inserted and fastened at a predetermined position of the protrusion (16). A receiving portion (19) is provided, formed to a predetermined length in the inner direction of the inner and outer panels (11, 12); the fastening member (30) comprises an insertion tube (31) formed in the shape of a concave groove so as to be inserted into an insertion groove (19b) provided in the receiving portion (19), with the circumference of both sides of one end of the fastening member (30) extending horizontally in the direction of the protrusion (16); a screw member (32) provided at one end of the fastening member (30) and having screw threads formed so as to be fastened into a screw groove (19a) provided in the receiving portion (19); a rotating member (33) formed to extend to a predetermined length in the direction of the coupling groove (17) at the other end of the insertion tube (31); a plurality of concave grooves (34) formed in the inner direction of the circumference of both sides of the rotating member (33); and a waterproof pack (41) at the other end of the rotating member (33). A double wall is proposed that includes an inner and outer panel equipped with a connecting member using a corrugated reinforcing bar, wherein the receiving member (35) for receiving is included, and the rotating member (33) is rotated clockwise by the concrete poured into the coupling groove (17).

[0006] However, the above background technology has a coupling groove (17) into which the protrusion (16) is inserted formed on the other side of the inner and outer panels (11, 12), and a fastening member (30) provided in the coupling groove (17) is inserted and fastened at a predetermined position of the protrusion (16) to improve the bonding strength during continuous construction between double walls. However, there was a problem in that the inner and outer panels (11, 12) could not withstand the pouring pressure at the end when pouring concrete and separated. Prior art literature

[0007] Patent Registration No. 1933471 "Double wall including inner and outer panels equipped with connecting members using corrugated reinforcing bars" The problem to be solved

[0008] The present invention aims to solve the aforementioned problems by providing a tie bolt member for preventing PC double wall bursting, which prevents the joints between PC double walls from bursting due to inability to withstand pouring pressure during concrete filling in a PC double wall configured with a front PC panel and a rear PC panel spaced apart by a certain distance. means of solving the problem

[0009] The present invention provides a tie bolt member for preventing bursting of a PC double wall comprising a front PC panel and a rear PC panel in the shape of a vertical plate positioned parallel to and spaced apart from the front PC panel by a certain distance, comprising: a base plate in the shape of a horizontal plate; a fixing member formed on the upper surface of the base plate and having a nut hole of a certain depth formed therein; a fastening bolt formed by bolting at each of the longitudinal ends, with the lower end of which is fastened to the fixing member; and a nut fastened to the upper end of the fastening bolt. The base plate and the fixing member are embedded on both sides of the front PC panel in the width direction so that the upper end of the fixing member is exposed on the inner surface of the front PC panel, and a through hole is formed in the rear PC panel to insert the fastening bolt through the through hole and fasten it to the fixing member, and fasten it with a nut from the outside of the rear PC panel.

[0010] In addition, the present invention provides a tie bolt member for preventing PC double-wall bursting, characterized in that widthwise anchoring members are configured on both longitudinal ends of the base plate to protrude a certain length from each of the widthwise ends of the base plate.

[0011] In addition, the present invention provides a tie bolt member for preventing PC double-wall bursting, characterized in that longitudinal anchoring members are configured on both sides of the fixing member on the upper surface of the base plate to protrude a certain length from each end of the base plate in the longitudinal direction, in a direction perpendicular to the widthwise anchoring members.

[0012] In addition, the present invention provides a tie bolt member for preventing PC double wall bursting, characterized in that the fixing member comprises a cylindrical fastening part in which a nut hole is formed, and a fastening guide part configured on the upper part of the fastening part, in which a guide hole larger than the size of the nut hole is formed in the center of the fastening part.

[0013] In addition, the present invention provides a tie bolt member for preventing PC double-wall bursting, characterized in that the cross-section of the guide hole of the fixing member is formed in an inverted cone shape, with the inner surface formed at a downward diagonal angle in the direction of the nut hole.

[0014] In addition, we intend to provide a tie bolt member for preventing PC double wall bursting, characterized by having a washer fitted on the upper part of the fastening bolt and a nut fastened thereto.

[0015] In addition, the PC double wall is constructed continuously in the width direction, and the washer is formed in the shape of a plate of a certain size, with fastening holes formed on both sides into which fastening bolts are inserted, thereby securing the fastening bolts of adjacent PC double walls by the washer, thereby providing a tie bolt member for preventing PC double wall bursting.

[0016] In addition, the present invention provides a tie bolt member for preventing PC double wall bursting, characterized in that the fastening hole of the washer is formed as an elongated hole on one side in the longitudinal direction of the washer and as an elongated hole on the other side in the width direction of the washer.

[0017] In addition, the PC double wall is constructed in a perpendicular direction, and an insert is embedded in the rear PC panel of the vertical PC double wall so as to be exposed to the outside. It is formed in an L shape by being composed of a lower surface of a washer and a vertical surface extending perpendicularly from the lower surface, and fastening holes are formed in the lower surface and the vertical surface, respectively, so that the vertical surface is bolted to the insert of the vertical PC double wall. Effects of the invention

[0018] The tie bolt member for preventing bursting of a PC double wall according to the present invention enables the front and rear PC panels to be directly joined with fastening bolts in a PC double wall configured with the front and rear PC panels spaced apart by a certain distance, thereby preventing bursting at joints between the PC double walls due to inability to withstand pouring pressure during internal concrete filling. Furthermore, it has a simple structure and can be applied to PC double walls of various structures, providing a highly useful and economical effect. Brief explanation of the drawing

[0019] The following drawings attached to this specification illustrate preferred embodiments of the present invention and serve to further enhance understanding of the technical concept of the present invention together with the detailed description thereof; therefore, the present invention should not be interpreted as being limited only to the matters described in the attached drawings. FIG. 1 is a perspective view of the tie bolt member for preventing PC double wall bursting according to the present invention. Figure 2 is a partially exploded view of Figure 1. Figure 3 is a cross-sectional view of Figure 1 above. Figure 4 is a plan view of Figure 1 above. FIG. 5 is a figure illustrating an embodiment in which the tie bolt member for preventing PC double wall bursting according to the present invention is installed. Specific details for implementing the invention

[0020] The present invention will be described in detail below with reference to embodiments shown in the attached drawings, but the presented embodiments are exemplary for a clear understanding of the present invention and the present invention is not limited thereto.

[0021] The technical configuration of the present invention according to the following preferred embodiments is described in detail as follows.

[0022] FIG. 1 is a perspective view of a tie bolt member for preventing PC double wall bursting according to the present invention, FIG. 2 is a partially exploded view of FIG. 1, and FIG. 5 is a diagram showing an embodiment in which the tie bolt member for preventing PC double wall bursting according to the present invention is installed.

[0023] As shown in FIGS. 1 and 2, the present invention comprises a base plate (910) having a horizontal plate shape of a certain size, a fixing member (920) formed on the upper surface of the base plate (910) and having a nut hole (921a) of a certain depth formed therein, a fastening bolt (930) having bolts formed at each of the longitudinal ends and having its lower end fastened to the fixing member (920), and a nut (940) fastened to the upper end of the fastening bolt (930). As shown in FIG. 5, in a PC double wall (1) comprising a front PC panel (10) and a rear PC panel (20) having a vertical plate shape positioned parallel to the front PC panel (10) at a certain distance apart, the base plate (910) and the fixing member (920) are embedded on both sides in the width direction of the front PC panel (10) such that the upper end of the fixing member (920) is exposed to the inner surface of the front PC panel (10), and on the rear PC panel (20) A through hole (210) is formed, and a fastening bolt (920) is inserted into the through hole (210) to be fastened to a fixing member (920), and a nut (940) is fastened from the outside of the rear PC panel (20).

[0024] The base plate (910) is formed in the shape of a horizontal plate of a certain size and serves to fix the fixing member (920) and to be fixed inside the rear PC panel (20), and can be made of various sizes.

[0025] In particular, the base plate (910) may be configured with width-direction anchoring members (950) that protrude a certain length from each of the width-direction side ends of the base plate (910) to facilitate anchoring. In this case, the anchoring members (950) may be joined to the base plate (910) by means such as welding. Additionally, grooves corresponding to the anchoring members (950) may be formed on both width-direction side ends of the base plate (910) so that the anchoring members (950) may be seated.

[0026] Additionally, on both sides of the fixing member (920) on the upper surface of the base plate (910), longitudinal fixing members (960) may be fixed by means such as welding so as to protrude a certain length from each end of the base plate (910) in a direction perpendicular to the widthwise fixing member (950).

[0027] The fixing member (920) is fixed to the upper surface of the base plate (910) by means such as welding, and a nut hole (921a) of a certain depth is formed vertically from the top so that the lower end of the fastening bolt (930) can be bolted.

[0028] The fixing member (920) is configured such that it comprises a cylindrical fastening part (921) in which a nut hole (921a) is formed, and a fastening guide part (922) formed on the upper part of the fastening part (921) and having a guide hole (922a) formed in the center of the fastening part (921) that is larger than the size of the nut hole (921a), thereby allowing the lower end of the fastening bolt (930) to be inserted more easily into the guide hole (922a) when being inserted into the upper end of the fixing member (920), so that it can be fastened to the nut hole (921a).

[0029] At this time, as shown in FIG. 3, the cross-section of the guide hole (922a) of the fixing member (920) is formed in an inverted cone shape such that the inner surface is formed diagonally downward in the direction of the nut hole (921a), so that the lower end of the fastening bolt (930) can be easily inserted into the upper part of the large diameter guide hole (922a) and guided to the nut hole (921a) along the diagonal cross-section of the guide hole (922a) to enable easy fastening.

[0030] The fastening bolt (930) is bolted at each of its longitudinal ends, so that its lower end is fastened to the fixing member (920) and its upper end is fixed by a nut (940).

[0031] That is, as shown in FIG. 5, in the PC double wall (1), a base plate (910) and a fixing member (920) are embedded on both sides in the width direction of the front PC panel (10) so that the upper part of the fixing member (920) is exposed on the inner surface of the front PC panel (10), and a through hole (210) is formed in the rear PC panel (20) so that a fastening bolt (920) is inserted through the through hole (210) to fasten to the fixing member (920), and fastened with a nut (940) from the outside of the rear PC panel (20).

[0032] At this time, a washer (970) can be fitted onto the fastening bolt (930) on the upper side of the fastening bolt (930), that is, on the outer side of the rear PC panel (20), and a nut (940) can be fastened again.

[0033] Additionally, when the PC double wall (1) is constructed continuously in the width direction, the washer (970) is formed in the shape of a plate of a certain size, and a fastening hole (971) into which a fastening bolt (930) is inserted is formed on each side, so that the fastening bolt (930) of an adjacent PC double wall (10) can be fixed by the washer (970). In order to accommodate construction errors, the fastening hole (971) of the washer (970) may be formed such that one side is an elongated hole in the length direction of the washer (970), and the other side is an elongated hole in the width direction of the washer (970).

[0034] In particular, since there are many defects where the PC double wall (1) cannot withstand the pouring pressure and bursts when the concrete is poured when it is constructed in a perpendicular direction, as illustrated, an insert (250) is embedded in the rear PC panel (20) of the vertical PC double wall (1) so as to be exposed to the outside, and is formed in an L shape by the lower surface (972) of the washer (970) and the vertical surface (973) extending perpendicularly from the lower surface, and a fastening hole (971) is formed in each of the lower surface and the vertical surface so that the vertical surface (973) can be bolted to the insert (250) of the vertical PC double wall (1).

[0035] The tie bolt member for preventing bursting of a PC double wall according to the present invention, as described above, enables the front PC panel and the rear PC panel to be directly joined with a fastening bolt in a PC double wall configured with the front PC panel and the rear PC panel spaced apart by a certain distance. This prevents bursting at joints between the PC double walls due to inability to withstand pouring pressure during internal concrete filling. Furthermore, since the structure is simple and applicable to PC double walls of various structures, it offers a highly economical and useful effect.

[0036] Although the present invention has been described in detail with reference to the presented embodiments, those skilled in the art may make various modifications and variations without departing from the technical spirit of the present invention by referring to the presented embodiments. The present invention is not limited by such modifications and variations, but is limited only by the claims appended below. Explanation of the symbols

[0037] 10: Front PC panel 20 : Rear PC panel 90 : Tie bolt member for preventing PC double-wall bursting 910 : Base Plate 920 : Fixed member 930 : Fastening bolt 940 : Nut

Claims

Claim 1 A tie bolt member for preventing bursting of a PC double wall (1) comprising a front PC panel (10) and a rear PC panel (20) in the shape of a vertical plate positioned parallel to and spaced apart from the front PC panel (10), comprises: a base plate (910) in the shape of a horizontal plate; a fixing member (920) formed on the upper surface of the base plate (910) and having a nut hole (921a) of a certain depth formed therein; a fastening bolt (930) having bolts formed at each end in the longitudinal direction, with the lower end of which is fastened to the fixing member (920); and a nut (940) fastened to the upper end of the fastening bolt (930). The base plate (910) and the fixing member (920) are embedded on both sides in the width direction of the front PC panel (10) such that the upper end of the fixing member (920) is exposed to the inner surface of the front PC panel (10), and on the rear PC panel (20) A PC double-wall burst prevention tie bolt member characterized by having a through hole (210) formed, a fastening bolt (920) inserted through the through hole (210) and fastened to a fixing member (920), and fastened with a nut (940) on the outside of the rear PC panel (20). Claim 2 A PC double-wall burst prevention tie bolt member according to claim 1, characterized in that widthwise anchoring members (950) are configured to protrude a certain length from each of the widthwise ends of the base plate (910) at both longitudinal ends of the base plate (910). Claim 3 A PC double-wall burst prevention tie bolt member according to claim 1, characterized in that longitudinal anchoring members (960) are configured on both sides of the fixing member (920) on the upper surface of the base plate (910) to protrude a certain length from each end of the base plate (910) in a direction perpendicular to the widthwise anchoring member (950). Claim 4 A PC double-wall burst prevention tie bolt member according to claim 1, wherein the fixing member (920) comprises a cylindrical fastening part (921) in which a nut hole (921a) is formed, and a fastening guide part (922) configured on the upper part of the fastening part (921) and having a guide hole (922a) formed in the center of the fastening part (921) that is larger than the size of the nut hole (921a). Claim 5 A PC double-wall burst prevention tie bolt member according to claim 1, characterized in that the cross-section of the guide hole (922a) of the fixing member (920) is formed in an inverted cone shape with the inner surface formed diagonally downward in the direction of the nut hole (921a). Claim 6 A PC double-wall burst prevention tie bolt member according to claim 1, characterized in that a washer (970) is fitted to the upper part of the fastening bolt (930) and a nut (940) is fastened. Claim 7 A tie bolt member for preventing PC double wall bursting according to claim 6, wherein the PC double wall (1) is constructed continuously in the width direction, and the washer (970) is formed in the shape of a plate of a certain size and has a fastening hole (971) formed on each side into which a fastening bolt (930) is inserted, thereby fixing the fastening bolt (930) of an adjacent PC double wall (10) by the washer (970). Claim 8 A PC double-wall burst prevention tie bolt member according to claim 7, characterized in that the fastening hole (971) of the washer (970) is formed as an elongated hole on one side in the longitudinal direction of the washer (970) and as an elongated hole on the other side in the width direction of the washer (970). Claim 9 A tie bolt member for preventing PC double wall bursting according to claim 6, wherein the PC double wall (1) is constructed in a perpendicular direction, and an insert (250) is embedded in the rear PC panel (20) of the vertical PC double wall (1) so as to be exposed to the outside, and is formed in an L shape by the lower surface (972) of the washer (970) and a vertical surface (973) extending perpendicularly from the lower surface, and a fastening hole (971) is formed in each of the lower surface and the vertical surface, and the vertical surface (973) is bolted to the insert (250) of the vertical PC double wall (1).

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