KR-20260064079-A - Height-adjustable triangular pyramidal rebar support structure

KR20260064079AKR 20260064079 AKR20260064079 AKR 20260064079AKR-20260064079-A

Abstract

The present invention relates to a height-adjustable triangular pyramidal rebar support structure, wherein, when arranging upper and lower rebars on a foundation with a thin foundation thickness, the triangular pyramidal rebar support structure can be stably mounted on the lower rebar without being constrained by changes in the spacing between the lower rebars being arranged, and the height of the upper rebar can be adjusted for arrangement. A first embodiment of the triangular pyramidal rebar support structure comprises a V-shaped lower support member in which first and second lower supports, each divided into an inner support portion and an outer support portion, form a V-shape and are mounted on the lower rebar; an upper front diagonal member in which the lower ends of the first and second upward front diagonal members are each fixed by welding at the boundary where the inner support portion and the outer support portion connect, and an intersection portion formed by the upper portions of the first and second upward front diagonal members intersecting diagonally is integrally fixed by welding; a rear diagonal member that is supported diagonally at an angle by the upper front diagonal member and is fixed by welding at the meeting portion and the intersection portion, respectively. The upper rebar height adjustment support comprises a horizontal height adjustment base integrally fixed by welding to the end of the first protrusion of a first upward front diagonal member protruding from the upper part of the intersection, the end of the second protrusion of a second upward front diagonal member, and the end of the protrusion of a rear diagonal member, with a nut portion formed in the center; a height adjustment bolt portion coupled to the nut portion of the height adjustment support to adjust the height of the upper rebar being reinforced, and an upper rebar support member coupled to the upper end of the height adjustment bolt portion to support an upper rebar support member; and the second embodiment comprises, in the configuration of the first embodiment, a height adjustment support integrally fixed by welding to one surface of the first protrusion of the first upward front diagonal member protruding from the upper part of the intersection, one surface of the second protrusion of the second upward front diagonal member, and the end of the protrusion of the rear diagonal member. The third embodiment is characterized in that, among the components of the first embodiment, the upper front diagonal member is welded to the boundary where the inner support part and the outer support part are connected, and the first and second upper front diagonal members are formed to extend diagonally toward the upper central part, and the rear diagonal member is welded to the meeting part to extend diagonally toward the upper central part, and the horizontal height-adjustable support is integrally fixed by welding to the end of the upper front diagonal member and the end of the rear diagonal member.

Inventors

김영춘

Assignees

(주)바로건설기술

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (16)

A V-shaped lower support (10) in which the first and second lower supports (11, 11'), each separated into inner support portions (111, 111') and outer support portions (112, 112'), are gathered at one point at an acute angle to form a V-shape by welding or bending, and which is mounted on the lower reinforcing bar (1); An upward front diagonal member (20) in which the lower ends of the first and second upward front diagonal members (21, 21') are each fixed by welding at the boundary portion (B, B') where the inner support portion (111, 111') and the outer support portion (112, 112') are connected, and an intersection portion (C) formed by the upper portions of the first upward front diagonal member (21) and the second upward front diagonal member (21') intersecting each other diagonally is integrally fixed by welding; A rear diagonal member (30) that is supported diagonally and inclinedly on the upper front diagonal member (20) and fixed by welding to the meeting part (M) and the intersection part (C), respectively; A horizontal height-adjustable base (40) integrally fixed by welding to the end of the first protrusion (211) of the first upward front diagonal member (21) protruding above the intersection (C), the end of the second protrusion (211') of the second upward front diagonal member (21'), and the end of the protrusion (31) of the rear diagonal member (30), and having a nut portion (40a) formed in the center; The upper rebar height adjustment stand (50) is characterized by being composed of a height adjustment bolt part (51) that adjusts the height of the upper rebar (2) which is connected to the nut part (40a) of the height adjustment base (40) and is arranged, and an upper rebar support (52) that is connected to the upper end of the height adjustment bolt part (51) and on which the upper rebar support (3) is mounted. Height-adjustable triangular pyramidal rebar support structure.
A V-shaped lower support (10) in which the first and second lower supports (11, 11'), each separated into inner support portions (111, 111') and outer support portions (112, 112'), are gathered at one point at an acute angle to form a V-shape by welding or bending, and which is mounted on the lower reinforcing bar (1); An upward front diagonal member (20) in which the lower ends of the first and second upward front diagonal members (21, 21') are each fixed by welding at the boundary portion (B, B') where the inner support portion (111, 111') and the outer support portion (112, 112') are connected, and an intersection portion (C) formed by the upper portions of the first upward front diagonal member (21) and the second upward front diagonal member (21') intersecting each other diagonally is integrally fixed by welding; A rear diagonal member (30) that is supported diagonally and inclinedly on the upper front diagonal member (20) and fixed by welding to the meeting part (M) and the intersection part (C), respectively; A horizontal height-adjustable base (40) integrally fixed by welding to one side of the first protrusion (211) of the first upward front diagonal member (21) protruding above the above intersection (C), one side of the second protrusion (211') of the second upward front diagonal member (21'), and the end of the protrusion (31) of the rear diagonal member (30), and having a nut portion (40a) formed in the center; The upper rebar height adjustment stand (50) is characterized by being composed of a height adjustment bolt part (51) that adjusts the height of the upper rebar (2) which is connected to the nut part (40a) of the height adjustment base (40) and is arranged, and an upper rebar support (52) that is connected to the upper end of the height adjustment bolt part (51) and on which the upper rebar support (3) is mounted. Height-adjustable triangular pyramidal rebar support structure.
A V-shaped lower support (10) in which the first and second lower supports (11, 11'), each separated into inner support portions (111, 111') and outer support portions (112, 112'), are gathered at one point at an acute angle to form a V-shape by welding or bending, and which is mounted on the lower reinforcing bar (1); An upward front diagonal member (20-1) composed of first and second upward front diagonal members (21-1, 21'-1) that are respectively welded to the boundary portion (B, B') where the inner support portion (111, 111') and the outer support portion (112, 112') are connected and extend diagonally toward the upper central portion; A rear diagonal member (30-1) welded to the above assembly part (M) and extending diagonally toward the upper central part; A horizontal height-adjustable support (40) that is integrally fixed by welding to the end of the upper front diagonal member (20-1) and the end of the rear diagonal member (30-1) and has a nut portion (40a) formed in the center; The upper rebar height adjustment stand (50) is characterized by being composed of a height adjustment bolt part (51) that adjusts the height of the upper rebar (2) which is connected to the nut part (40a) of the height adjustment base (40) and is arranged, and an upper rebar support (52) that is connected to the end of the height adjustment bolt part (51) and on which the upper rebar support (3) is mounted. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The height-adjustable base (40) is characterized by being made of a circular iron plate and a polygonal iron plate. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The reinforcing horizontal member (60) is formed by welding a first and 1' reinforcing horizontal member (61, 61') horizontally between the above-described V-shaped lower support (10) and the intersection (C), or between the first and second upward front diagonal members (21, 21-1; 21', 21'-1) and the rear diagonal member (30, 30-1) of the V-shaped lower support (10) and the height-adjustable support (40), respectively, or by folding one member into a V-shape and welding it fixed to the upward front diagonal member (20, 20-1) and the rear diagonal member (30, 30-1). Height-adjustable triangular pyramidal rebar support structure.
In claim 5, Characterized by the fact that a front reinforcing horizontal member (62) is integrally formed by welding between the first and second upward front diagonal members (21, 21') where the first and 1' reinforcing horizontal members (61, 61') meet to provide stress reinforcement. Height-adjustable triangular pyramidal rebar support structure.
In either one of claims 1 and 2, Characterized by having a lower reinforcing support (12) integrally formed by welding between the above boundary portions (B, B'). Height-adjustable triangular pyramidal rebar support structure.
In claim 6, The above first, 1' reinforcing horizontal members (61, 61') or front reinforcing horizontal member (62) are characterized by being made of reinforcing bar, angle, steel rod, or steel pipe. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The above V-shaped lower support (10), the upward front diagonal member (20, 20-1), and the rear diagonal member (30, 30-1) are characterized by being made of reinforcing bar, angle, steel rod, or steel pipe. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, Characterized by the fact that the length (d) of the outer support portions (112, 112') of the first and second lower supports (11, 11') of the V-shaped lower support (10) is adjusted so that the first and second lower supports (11, 11') can be stably seated and mounted on two or more lower reinforcing bars (1) that are adjacent in parallel. Height-adjustable triangular pyramidal rebar support structure.
In claim 10, Characterized by the fact that as the length (d) of the outer support portions (112, 112') of the first and second lower support members (11, 11') is adjusted, the inclination angles (θ1, θ2) of the upward front diagonal member (20, 20-1) and the rear diagonal member (30, 30-1) are adjusted. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The nut portion (40a) of the height-adjustable base (40) is characterized by having a tap (T) made by punching in the center of a circular or polygonal iron plate and having screw threads formed inside. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The height-adjustable base (40) is characterized by being fixed by welding a flange nut (42) having a nut portion (40a) formed on a washer or a circular or polygonal iron plate (41) with a hole in the center. Height-adjustable triangular pyramidal rebar support structure.
In claim 3, The height-adjustable base (40) is characterized by being composed of a flange nut that doubles as a washer or a nut (42) that does not double as a washer. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 to 3, The upper reinforcing bar holder (52) is characterized by being formed in a straight line shape or a U shape. Height-adjustable triangular pyramidal rebar support structure.
In any one of claims 1 and 3. The entire or part of the end surface (20a, 20-1a) of the above-mentioned upward front diagonal member (20, 20-1) and the end surface (30a, 30-1a) of the rear diagonal member (30, 30-1) is welded to the outer circumference of the lower surface of the height-adjustable support (40), or the side surface (20b, 20-1b) of the end side of the above-mentioned upward front diagonal member (20, 20-1) and the side surface (30b, 30-1b) of the end side of the rear diagonal member (30, 30-1) are integrally fixed to the outer surface (40e) of the height-adjustable support (40) by welding. Height-adjustable triangular pyramidal rebar support structure.

Description

Height-adjustable triangular pyramidal rebar support structure The present invention relates to a height-adjustable triangular pyramidal rebar support structure, and more specifically, to a structure for stably mounting a rebar support structure on a lower rebar without being constrained by changes in the spacing between the lower rebars when arranging upper and lower rebars on a foundation with a thin foundation thickness, and for arranging the upper rebars by adjusting their height. Generally, in foundation work for building construction, upper and lower reinforcement bars are arranged. Recently, as super high-rise buildings have become common and the depth of the foundation has increased, the upper reinforcement bars are installed higher than the lean concrete layer poured on top of the foundation ground, and as the amount of reinforcement required for foundation work has increased, various reinforcement support structures have been conceived to prevent sagging of the upper reinforcement bars, easily adjust the height at which the upper reinforcement bars are installed, and safely support the upper reinforcement bars. To support the upper reinforcement of the foundation, lean concrete is first poured on the floor, spacers are installed on top of it, and the lower reinforcement of the foundation is arranged. Generally, for low foundations of 1.5m or less, to support the upper reinforcement on the lower reinforcement, a hat-shaped bar called a "U-shaped bar" is often used, which is made by shaping the reinforcement into a 'U' shape as shown in Fig. 1a and placing the legs with bent ends on top of the lower reinforcement. However, since the upper load is supported by two vertical members, the buckling performance of this "U-shaped bar" is very poor, and the height of the U-shaped bar must be raised or lowered depending on the difference in the floor level of the lean concrete poured prior to the foundation formation. The method of installing these 'Uma rebars' involves placing them on the lower rebars of the foundation at intervals of about 1.2m, first fixing the lower rebars and the lower legs of the 'Uma rebars' with binding wires, and then installing and fixing upper rebar supports, also known as 'Dori rebars,' on the upper rebar mounting section, which is the horizontal top of the 'Uma rebars.' However, since the lower legs of the 'Uma rebars' installed first are bound to the lower rebars, the 'Dori rebars,' which are upper rebar supports installed on the top of the 'Uma rebars,' are frequently installed at the edges rather than the center of the top of the 'Uma rebars,' as shown in Fig. 1b. Consequently, eccentric loads are applied to the 'Uma rebars' due to upper loads, such as the stacking of rebar bundles, and safety accidents, such as the collapse of the foundation rebar as shown in Fig. 1c, frequently occur due to deformation of the 'Uma rebars' caused by buckling during construction, yet there is currently no specific alternative to address this. In addition, when using 'Uma rebar', the 'Uma rebar' is installed on the lower rebar, and then an upper rebar support, called a 'Dori rebar', is installed on top of the 'Uma rebar'. However, during construction, the level of the lower rebar is not correct, so the height of the 'Uma rebar' installed on top of the lower rebar must be lowered or raised. To lower the installation height of the 'Uma rebar', the legs of the 'Uma rebar' are spread apart as shown in Fig. 1d to lower the height of the 'Uma rebar'. When the legs of the 'Uma rebar' are spread apart in this way, the vertical members of the 'Uma rebar' become diagonal and the legs of the 'Uma rebar' do not form a horizontal line, making it difficult to stably bind the legs of the 'Uma rebar' to the lower rebar. Furthermore, as the vertical members of the 'Uma rebar' become inclined due to the spreading of the 'Uma rebar', the 'Uma rebar' becomes structurally very unstable. In addition, when the height of the yoke reinforcement is increased, a concrete spacer is installed between the top of the yoke reinforcement and the upper reinforcement support, which is the purlin reinforcement, as shown in Fig. 1e. However, when installing this concrete spacer on the top of the yoke reinforcement, it is difficult to firmly secure the concrete spacer with binding wire, and it is difficult to ensure a solid foundation between the spacer and the upper reinforcement support, which is the purlin reinforcement installed on top of it. Furthermore, as the concrete spacer easily detaches from the top of the yoke reinforcement due to the impact applied from above during the upper reinforcement placement, as shown in Fig. 1f, a concentrated load is applied to some of the yoke reinforcement, which becomes a factor that compromises safety, such as foundation collapse accidents. The applicant of the present invention has previously proposed a rebar support structure, Korean Patent Registration No. 10-1111270 and Korean Patent