KR102353188B1 - Fixed structure of support beams and soil barrier structure using them - Google Patents

Abstract

The present invention relates to a fixing structure for a support beam, which is to fix the support beam which is supported by being hung on the upper side of a reinforcing beam, which is an H-shaped steel unit with a web horizontally installed on the excavated ground, comprising: a pair of side surface members installed on both sides of the support beam; a fastening member respectively engaging lower sides of the pair of side surface members with the reinforcing beam; and an engagement member engaging upper sides of the pair of side surface members with each other. The support beam includes: a first surface bound and fixed in a square closed space formed by the reinforcing beam, the pair of side surface members, and the engagement member, with the side surface members coming in contact with a side surface of the support beam; and a second surface folded from the first surface at right angles and coming in contact with a flange on one side of the reinforcing beam. The fastening member engages the second surface of the side surface members with the flange on one side of the reinforcing beam. The engagement member engages the first surfaces of the pair of side surface members with each other. According to the present invention, the movement of the support beam is prevented by fixing the reinforcing beam with the support beam hung on the upper side of the reinforcing beam and/or the support beam with a vertical pile, thereby firmly supporting the ground.

Description

Fixed structure of support beams and soil barrier structure using them}

The present invention relates to a brace fixing structure, and more particularly, to a brace fixing structure for fixing a brace mounted in a direction crossing the upper side of a support beam installed in an excavation ground, and a retaining structure using the same.

In general, when excavating the ground to construct a building or civil engineering structure underground, retaining work is carried out to prevent the collapse of the excavated ground.

As an example of the retaining construction, H-beam steel piles are installed at regular intervals in contact with the excavated soil, and earth plates are installed between the H-beam steel piles. In addition, a wale is installed horizontally on the front of the H-beam piles, and a brace is installed at regular intervals between the wale and the facing wale.

In addition, vertical piles of H-beam steel are installed in the middle of the excavated soil, and a support structure of a square or triangular shape is bolted to the side flange of the vertical pile, and then the flange of the H-beam support beam is in contact with the upper surface of the support structure. After installation, fasten with bolts. Then, the brace is fixed to the upper side of the support beam. This brace fixing structure rotates the support beam around the lower part combined with the support structure when the axial earth pressure acts on the support beam, and this rotational force facilitates the coupling of the support beam and the support structure or the coupling of the support structure and the vertical pile. breakage, and this breakage may cause a major problem in the overall stability of the retaining structure.

Republic of Korea Patent Publication No. 10-1628264 Republic of Korea Patent Publication No. 10-1518565

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a support beam and a retaining structure using the same to prevent the flow of the support beam by fixing the support beam and the support beam mounted on the upper side thereof. have.

In addition, by directly connecting the flange of the support beam to the flange of the vertical pile without a support structure with bolts, etc., and fixing the support beam to the upper side of the support beam, the coupling relationship between the vertical pile and the support beam and the support structure of the support beam are simplified, and the vertical pile It is to provide a retaining structure and a retaining structure using the same, which can secure a strong bonding force between the support beam and the support beam.

The brace fixing structure according to an example of the present invention is a beam fixing structure for fixing a beam supported by being mounted in a direction crossing the upper side of a support beam, which is an H-shaped steel beam installed in the horizontal direction on the excavation ground. A pair of side members installed on both sides; Fastening members for coupling the lower portions of the pair of side members to the support beams, respectively; Including; a coupling member for coupling the upper portions of the pair of side members to each other, wherein the beotimbo is constrained and fixed inside the closed space of a rectangular shape formed by the support beam, the pair of side members and the coupling member, the The side member includes a first surface in contact with the side of the beotimbo, two surfaces bent in a right angle direction from the first surface and in contact with the flange of one side of the support beam, and the fastening member is a second surface of the side member and One side flange of the support beam is coupled, and the coupling member may couple the first surfaces of the pair of side members to each other.

After extending in a perpendicular direction from the second surface, it further includes a fitting portion bent downward in a right angle direction again, and the flange of one side of the support beam may be installed to be fitted between the second surface and the fitting portion.

It is installed vertically on the excavation ground, and one flange further comprises an H-shaped steel vertical pile that is coupled in contact with the other flange of the support beam, the vertical pile may be installed to be in contact with the support beam.

In addition, the retaining structure using the beotimbo fixing structure of the present invention is a wale installed on the side of the excavated ground; Beotimbo installed in a direction crossing the wale; While being installed in a direction intersecting with the beotimbo from the lower side of the beotimbo, the web is installed in the horizontal direction to support the H-shaped steel support beam to support the beotimbo; Including, the beotimbo fixing structure for fixing the beotimbo; a pair of side members installed on both sides of the beotimbo; Fastening members for coupling the lower portions of the pair of side members to the support beams, respectively; Including; a coupling member for coupling the upper portions of the pair of side members to each other, wherein the beotimbo is constrained and fixed inside the closed space of a rectangular shape formed by the support beam, the pair of side members and the coupling member, the The side member includes a first surface in contact with the side of the beotimbo, two surfaces bent in a right angle direction from the first surface and in contact with the flange of one side of the support beam, and the fastening member is a second surface of the side member and One side flange of the support beam is coupled, and the coupling member may couple the first surfaces of the pair of side members to each other.

After extending in a perpendicular direction from the second surface, it further includes a fitting portion bent downward in a right angle direction again, and the flange of one side of the support beam may be installed to be fitted between the second surface and the fitting portion.

It is installed vertically on the excavation ground, and one flange further comprises an H-shaped steel vertical pile that is coupled in contact with the other flange of the support beam, the vertical pile may be installed to be in contact with the support beam.

It may further include a bracket installed between the band and beotimbo.

The bracket includes four planes formed in a flat shape on the top, bottom, left and right by compressing the top, bottom, left and right of the circular steel pipe in the central direction, and four arc surfaces formed in an arc shape as a connection between the four planes, Centrifugal polygonal steel pipe with four rounded corners; L-shaped angles coupled to the outer surface of the centrifugal polygonal steel pipe; and coupling flanges coupled to both ends of the centrifugal polygonal steel pipe. H-beam cut into a triangular shape to be coupled to the inside of the coupling flange; branch portions in which both sides of the centrifugal polygonal steel pipe are cut and removed, respectively, coupled to both cut surfaces of the triangular H-shaped steel through the removed portion; It may include; a connection portion coupled to each of the branch portions and coupled to the wale at the same time.

Between the band and beotimbo, between the bracket and beotimbo, or may further include a jack installed between the beotimbo and beotimbo.

The jack includes four planes formed in a flat shape on the top, bottom, left and right by compressing the top, bottom, left and right of the circular steel pipe in the central direction, and four arc surfaces formed in an arc shape to connect between the four planes, Centrifugal polygonal steel pipe with four rounded corners; L-shaped angles coupled to the outer surface of the centrifugal polygonal steel pipe; and coupling flanges coupled to both ends of the centrifugal polygonal steel pipe. a square steel pipe in which corners are respectively coupled to four planes inside the centrifugal polygonal steel pipe; Screw rods having one side inserted between the centrifugal polygonal steel pipe and the rectangular steel pipe to slide in and out, and the other side being exposed; It may include; a second coupling flange coupled to the other exposed ends of the screw rods.

According to the present invention, it is possible to prevent the flow of the support beam and the support beam by fixing the beam mounted on the upper side thereof.

In addition, by directly connecting the flange of the support beam to the flange of the vertical pile without a support structure with bolts, etc., and fixing the support beam to the upper side of the support beam, the coupling relationship between the vertical pile and the support beam and the support structure of the support beam are simplified, and the vertical pile It is possible to secure a strong bonding force between the support beam and the support beam.

1 to 2 are views of a state in which a brace fixing structure according to an example of the present invention is installed;
Figure 3 is an exploded perspective view of the fixing structure of the brace according to an example of the present invention;
Figure 4 is an exploded perspective view of an example to which the present invention is applied
5 is a cross-sectional view of FIG.
Figure 6 is an exploded perspective view of another example to which the present invention is applied
7 is a cross-sectional view of FIG.
8 to 9 are views showing the bracket of the present invention
Figure 10 is a construction view of the brace fixing structure and brackets of the present invention;
11 is a view showing a jack of the present invention
12 is an enlarged cross-sectional view taken along line A-A' of FIG. 11;
13 is a construction view of the brace fixing structure and brackets and jacks of the present invention
14 to 15 are views of a state in which a brace fixing structure according to another example of the present invention is installed;
Figure 16 is an exploded perspective view of the fixing structure of the brace according to another example of the present invention
17 to 18 are construction diagrams of a state in which a brace fixing structure according to another example of the present invention is installed.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. In adding reference numerals to the components of each drawing, the same components are given the same reference numerals as much as possible even though they are indicated on different drawings. In addition, in describing the embodiment of the present invention, if it is determined that a detailed description of a related known configuration or function interferes with the understanding of the embodiment of the present invention, the detailed description thereof will be omitted.

In addition, in describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, or order of the elements are not limited by the terms. When it is described that a component is “connected”, “coupled” or “connected” to another component, the component may be directly connected or connected to the other component, but another component is between each component. may be “connected”, “coupled” or “connected”.

Hereinafter, a beotimbo fixing structure according to an example of the present invention will be described with reference to the accompanying drawings.

1 to 2 is a view of a state in which the beotimbo fixing structure according to an example of the present invention is installed, and Figure 3 is an exploded perspective view of the beotimbo fixing structure according to an example of the present invention.

1 to 3, the support beam fixing structure 40 according to an example of the present invention is mounted in a direction that intersects the upper side of the support beam 30, which is an H-shaped steel in which the web is installed in the excavation ground in a horizontal direction. As for fixing the supporting beam 100 to be supported, it may include a pair of side members 41 , a fastening member 42 , and a coupling member 43 .

A pair of side members 41 may be installed on both left and right sides of the beotimbo 100 . The side member 41 may include a first surface in contact with the side of the beotimbo 100 , and a second surface that is bent in a right angle direction from the first surface and is in contact with the flange of one side of the support beam 30 . A pair of side members 41 are formed in a L-shape to resist the axial load of the beotimbo 100 and the axial load of the support beam 30 well. In other words, it can resist the load direction well with a minimum amount of material.

The fastening member 42 may couple the lower portions of the pair of side members 41 to the support beams 30 , respectively. The fastening member 42 may couple the second surface of the side member 41 with one side flange of the support beam 30 . The fastening member 42 may be a bolt/nut or the like.

The coupling member 43 may couple the upper portions of the pair of side members 41 to each other. The coupling member 43 may couple the first surfaces of the pair of side members 41 to each other. The coupling member 43 may be a long bolt and a nut.

As a result, the beotimbo 100 may be constrained and fixed inside the closed space of the rectangular shape formed by the support beam 30 , the pair of side members 41 and the coupling member 43 .

It may further include a fitting portion 44 coupled to one side flange of the support beam 30 . The fitting portion 44 may extend in a right angle direction from the second surface and then be bent down again in a right angle direction. One side flange of the support beam 30 may be installed to be fitted between the second surface and the fitting portion 44 . The fitting portion 44 facilitates construction by easily installing the side member 41 on the flange of one side of the support beam 30, and also the one side flange is closely fitted and coupled, thereby increasing the coupling force.

It may include a vertical pile 20 which is installed vertically on the excavation ground, and is an H-beam steel having one flange contacting the other flange of the support beam 30 and coupled thereto. The vertical pile 20 is installed to be in contact with the beotimbo 100, thereby suppressing the left and right flow of the beotimbo 100 to ensure stability.

Referring to Figures 4 to 5, the brace 100, a rectangular brace, H-beam, centrifugal polygon beam, etc. can be applied as a whole rectangular brace.

Centrifugal polygonal support may include a centrifugal polygonal steel pipe 110 , an angle 120 , and a coupling flange 130 .

The centrifugal polygonal steel pipe 110 is formed by compressing top, bottom, left, and right in the central direction in a state in which a circular steel pipe with an empty interior is laid down to connect four planes formed in a flat shape on the top, bottom, left and right, and between the four planes in an arc shape. It may include four arc surfaces to be formed. The centrifugal polygonal steel pipe 110 has the upper, lower, left and right surfaces in a flat shape, so that field workers can maintain a relatively good balance on the upper side of the brace, so that the construction of connection work is easy, and the use of equipment is reduced, so that the construction cost can be saved. can The centrifugal polygonal steel pipe 110 can be stably mounted on the upper side of the support beam such as H-shaped steel without rotating by forming the upper, lower, left, and right surfaces in a flat shape. Therefore, there is no fear of rolling on the upper side of the support beam even before both ends are coupled, and it is possible to maintain a stable state even when a load is applied after construction. In addition, since the centrifugal polygonal steel pipe 110 has four corners in an arc shape, it is possible to prevent stress concentration occurring at the corners compared to a conventional square steel pipe, thereby increasing stability. As a result, the centrifugal polygonal steel pipe 110 may have both the advantages of a square steel tube and a circular steel tube.

The centrifugal polygonal steel pipe 110 has a quadrangular shape in which four corners are rounded, and the quadrangular shape may be a square shape or a rectangular shape. A rectangular shape with four rounded corners can be advantageously applied when the bending moment is asymmetric along the direction. In addition, since the same bending moment is required in the up, down, left, and right directions in the case of a normal brace, in this case, it is preferable that the four corners are formed in a rounded square shape.

The angle 120 may be installed over the entire length of the centrifugal polygonal steel pipe 110 in an L-shape and welded. The L-shaped angles 120 may be installed to cover the four arc surfaces of the centrifugal polygonal steel pipe 110, respectively, and may be combined. The angle 120 may be used by using an existing product or by bending a steel plate. In the angle 120 , both flanges may have the same width. The angle 120 may be disposed symmetrically with respect to the central axis of the centrifugal polygonal steel pipe 110 of a square shape with four rounded corners. That is, the angle 120 is disposed on the four arc surfaces of the centrifugal polygonal steel pipe 110, so that the plane of the angle 120 and the centrifugal polygonal steel pipe 110 can be repeatedly formed at regular intervals. Since the angle 120 is disposed on the arc surface of the centrifugal polygonal steel pipe 110, it is possible to secure uniform bending rigidity in the vertical, horizontal, and horizontal directions. The L-shaped angle 120 can reinforce a large stress that may occur in the arc surface furthest from the center. This can greatly increase the structural stability of the centrifugal polygonal steel pipe 110 . In addition, the L-shaped angle 120 coupled to the arc surface of the centrifugal polygonal steel pipe 110 can enhance the effect of ease of construction and saving of construction costs.

It may further include a coupling flange 130 welded to both ends of the centrifugal polygonal steel pipe 110 . The coupling flange 130 may protrude outside the circumference formed by the centrifugal polygonal steel pipe 110 and the L-shaped angles 120 . It may further include coupling holes that are formed through the protruding outer side. The coupling flange 130 may be coupled to another member and then coupled with a bolt/nut through the coupling hole.

That is, the coupling flange 130 may be coupled with a bolt/nut through a coupling hole after being in contact with another member, such as a wale 10, a jack, an adjacent brace, and the like.

The coupling flange 130 and the L-shaped angle 120 or/and the centrifugal polygonal steel pipe 110 may further include a heonchi portion 140 welded between. Heonchi portion 140 can secure the stability of the coupling by supporting the coupling flange (130). Heonchi portion 140 is the coupling flange 130 and the L-shaped angle 120 or / and the edge where the centrifugal polygonal steel pipe 110 meets may be cut off. The cut-off removal unit may prevent stress generation due to deformation of the coupling flange 130 .

Referring to FIGS. 6 to 7 , a band-shaped perpobond 150 having through-holes formed therein to be coupled to the inner surface of the centrifugal polygonal steel pipe 110 in the longitudinal direction may be further included. Perpobond 150 is disposed between the L-shaped angles 120 and installed over the entire length of the centrifugal polygonal steel pipe 110, thereby increasing the rigidity of the centrifugal polygonal steel pipe 110, and at the same time, the centrifugal polygonal steel pipe ( 110), it is possible to greatly increase the bonding force with a filler such as concrete that can be filled in the interior.

The perpobond 150 may further include wings that are alternately bent from side to side at the inner (center side) end. Through-holes may be formed through the wing portions. The wings may further increase the bonding force with the filler filled in the centrifugal polygonal steel pipe 110 .

In addition, it may further include a triangular angle 160 that is welded to both ends of the L-shaped angles 120 inside. That is, after the triangular angle 160 is welded to make surface contact with the arc surface of the centrifugal polygonal steel pipe 110, the L-shaped angle 120 on the outside thereof is welded to the centrifugal polygonal steel pipe 110, or a triangular angle After the 160 is welded to the inside of the L-shaped angle 120 , the L-shaped angle 120 may be welded to make surface contact with the arc surface of the centrifugal polygonal steel pipe 110 .

The triangular angle 160 may be hollow or hollow, and the surface in contact with the arc surface may have a curved triangular prism shape. The triangular angle 160 may reinforce both ends of the L-shaped angles 120 . Therefore, when the brace 100 receives a large axial load and is bent at the connection point, the problem that the L-shaped angle 120 is crushed at the end or the welding with the centrifugal polygonal steel pipe 110 is damaged can be solved. As a result, it is possible to dramatically increase the rigidity of the connection point of the brace 100.

Next, the manufacturing process of the beotimbo 100 configured as described above and the construction process of the beotimbo fixing structure will be described.

First, referring to FIGS. 4 to 7 , a plate body is rolled according to the design drawing to form a circular steel pipe, and the top, bottom, left, and right of the circular steel pipe are compressed in the central direction to form four planes on the top, bottom, left and right, and the four planes It is possible to form the centrifugal polygonal steel pipe 110 having a quadrangular shape with four rounded corners by forming four arc surfaces therebetween. In addition, it is possible to prepare a L-shaped angle 120 according to the length of the centrifugal polygonal steel pipe 110 or prepare pre-fabricated L-shaped angles 120 . The L-shaped angles 120 may be welded to cover the four arc surfaces of the centrifugal polygonal steel pipe 110 .

In addition, the plate-shaped perpobond 150 or the perpobond 150 in which the wings are bent left and right may be welded to the inner surface of the centrifugal polygonal steel pipe 110 . The perforbond 150 may be installed over a part or the entire length of the inner surface of the centrifugal polygonal steel pipe 110 . The perpobond 150 may be radially spaced apart at a predetermined angle along the circumferential direction. The perforbond 150 may be welded to the plate body before rolling into the centrifugal polygonal steel pipe 110 . When the diameter of the centrifugal polygonal steel pipe 110 is large, the perfobond 150 may be welded inside. Even when the diameter of the centrifugal polygonal steel pipe 110 is small, the perforbond 150 can be welded from the outside using a known welding method.

The inside of the centrifugal polygonal steel pipe 110 may be filled with a filler. The filler may be filled through a hole formed in the centrifugal polygonal steel pipe 110 or the coupling flange 130 . The filler is filled with the through-holes penetrating the wing portion of the through-holes penetrated in the perforbond 150 , thereby increasing the bonding force and reinforcing the strength of the centrifugal polygonal steel pipe 110 .

The coupling flange 130 may be coupled to both ends of the centrifugal polygonal steel pipe 110 . The coupling flange 130 may be welded to the centrifugal polygonal steel pipe 110 and the angle 120 . After the coupling flange 130 is first welded to the centrifugal polygonal steel pipe 110 , the angle 120 may be welded to the centrifugal polygonal steel pipe 110 . In addition, by welding the haunchi portion 140 between the coupling flange 130 and the angle 120 can be produced beotimbo (100).

When describing the process of forming a retaining wall using the brace 100 produced by the above process with reference to FIGS. 1 and 2, installing the piles in contact with the excavated ground, and excavating the excavated ground between the piles. The earth plate is installed, and the wale 10 can be installed on the front of the piles in a conventional way.

In addition, the vertical piles 20 may be installed at regular intervals in the middle of the excavation ground, and the support beams 30 may be coupled to the vertical piles 20 with bolts or the like. It can be installed opposite to the wale (10) while holding the support beam (100) in a direction crossing the upper side of the support beam (30).

After attaching the coupling flange 130 of the beotimbo 100 to the wale 10, it can be coupled by fastening the coupling flange 130 and the wale 10 with a bolt/nut. Beotimbo 100 may be installed by connecting two or more depending on the width of the excavated ground. Beotimbo 100 to be connected may be coupled by fastening the coupling flange 130 in close contact with the bolts/nuts.

When the beotimbo 100 is seated so as to cross the support beam 30, the first surface of the pair of vertical members 41 is in close contact with the side of the beotimbo 100, that is, the vertical surface, and at the same time the end of the second surface is It may be brought into contact with one side flange of the support beam 30 . At this time, one side flange of the support beam 30 may be fitted to the fitting portion 44 formed on the second surface to be installed.

After fastening and coupling the flange of one side of the support beam 30 to which the fitting portion 44 is coupled and the second surface of the side member 41 with a fastening member 42 such as a bolt/nut, a pair of side members 41 By fastening the first surface of the coupling member 43, the support 100 can be fixed. Beotimbo 100 is a retaining wall while preventing the flow of beotimbo 100 by being constrained and fixed inside the rectangular closed space formed by the support beam 30, a pair of side members 41 and the coupling member 43. can support That is, the support beam 30 has a flange coupled to the vertical pile 20 with a bolt or the like, and the support beam 100 is fixed to the support beam 30 by the support beam fixing structure 40, thereby transverse of the support beam 100. Directional buckling can be completely suppressed. In addition, the beotimbo 100 by being in close contact with the vertical pile 20 can be completely suppressed lateral bending.

Referring to FIGS. 8 to 9 , a bracket 200 may be further installed between the wale 10 and the beotimbo 100 .

The bracket 200 compresses the top, bottom, left, and right of the circular steel pipe in the central direction to form four planes on the top, bottom, left, and right, and includes four arc surfaces formed between the four planes. A centrifugal polygonal steel pipe 210 is formed, and L-shaped angles 220 are coupled to the arc surface of the centrifugal polygonal steel pipe 210, and coupling flanges 230 are coupled to both ends of the centrifugal polygonal steel pipe 210. can In addition, of the coupling flanges 230 coupled to both ends of the centrifugal polygonal steel pipe 210, the H-shaped steel 240 cut in a triangular shape is coupled to the inside of the coupling flange 230 on one side to which the beotimbo 100 is coupled. Both sides of the centrifugal polygonal steel pipe 210 are cut and removed on the cut surface of the H-beam steel 240, and the branch 250 is coupled to the cut surface through the removed portion by welding, etc., and the branch 250 ) may be coupled to the wale 10 at the same time as the connection portion 260 is coupled to each.

The part from which both sides of the centrifugal polygonal steel pipe 210 are cut and removed may be sealed with a diaphragm after the branch 250 is coupled.

Next, the manufacturing process of the present invention bracket 200 configured as described above and the construction process of the retaining structure using the same will be described.

First, a circular steel pipe is formed by rolling a plate body, or a circular steel pipe is prepared in advance, and the top, bottom, left, and right of the circular steel pipe are compressed in the central direction to form four planes on the top, bottom, left and right, and four arc surfaces between the four planes. It is possible to form a centrifugal polygonal steel pipe 210 having a quadrangular shape with four rounded corners. In addition, the L-shaped angles 220 formed to fit the length of the centrifugal polygonal steel pipe 210 may be welded to cover four arc surfaces of the centrifugal polygonal steel pipe 210 .

In addition, both sides of one end of the centrifugal polygonal steel pipe 210 are cut and removed. Since the portion to be cut and removed is a space into which the branch portion 250 can be inserted and coupled, the portion to be cut and removed can be inserted into the branch portion 250 .

Next, the coupling flange 230 may be coupled to the other end of the centrifugal polygonal steel pipe 210 . The coupling flange 230 may be welded to the centrifugal polygonal steel pipe 210 and the angle 220 . In addition, a coupling flange 230 coupled to one end of the centrifugal polygonal steel pipe 210, that is, both sides of the centrifugal polygonal steel pipe 210 cut and removed, is prepared, and the coupling flange 230 has a triangular shape. The cut H-shaped steel 240 is joined by welding or the like. The cut surface of the H-shaped steel 240 cut in a triangular shape is located on the side from which the side of the centrifugal polygonal steel pipe 210 is removed. The branch part 250 is coupled to the cut surface of the H-shaped steel 240 cut in the triangular shape by welding or the like. The H-shaped steel 240 cut in a triangular shape and the coupling flange 230 to which the branch 250 are coupled are coupled to the centrifugal polygonal steel pipe 210 by welding or the like. The bracket 200 may be formed by coupling the connection part 260 to the branch part 250 by bolts/nuts or welding.

The web of the H-shaped steel 240 cut in a triangular shape may be installed in parallel with the coupling flange 230 . Therefore, the web of the branch portion 250, which is an H-shaped steel, is welded to the web of the H-shaped steel 240 cut in a triangular shape, and the flange of the branch portion 250 that is an H-shaped steel is the H-beam steel 240 cut in a triangular shape. ) can be welded to the flange. Accordingly, the web of the H-beam connection part 260 is located on a continuous line with the web of the branch part 250 and the web of the H-shaped steel 240 cut in a triangular shape, and the flange of the connection part 260 is the branch part 250 . It is located on a continuous line with the flange of the H-shaped steel 240 cut in a triangular shape with the flange of the. Such a continuous connection structure can dramatically increase the structural stability of the bracket 200 and the bearing capacity for earth pressure. As a result, the bracket 200 can support a large earth pressure without increasing the size of the wale. In addition, it is possible to form a wide spacing of the braces 100, the number of braces 100 is reduced to save construction costs, and the space is wide, so the construction can be easy.

In addition, the space removed by cutting on the side of the centrifugal polygonal steel pipe 210 so that the branch part 250 is coupled is sealed with a separate blocking plate, thereby maintaining structural rigidity.

Referring to FIG. 10, the process of forming the retaining wall using the bracket 200 and the brace 100 formed by the above process will be described. The piles are installed in the excavated ground, and the earth plate can be installed between these piles. In addition, it is possible to install the wale 10 in the horizontal direction on the front of the piles. The wale 10 may be installed in a conventional manner, and the clipboard 200 may be coupled to the wale 10 . The connecting flange formed on the connecting part 260 of the bracket 200 is closely attached to the wale 10, and the connecting flange and the wale 10 may be coupled by fastening them with bolts/nuts. By coupling the bracket 200 and the brace 100 with bolts/nuts, the brace 100 and the bracket 200 can firmly support the retaining wall.

The center of the bracket 200 may be coupled by connecting the band 10 and the end joining member.

In addition, referring to FIGS. 11 to 13, between the wale 10 and the beotimbo 100, between the bracket 200 and the beotimbo 100, or between the beotimbo 100 and the beotimbo 100, a jack ( 300) can be installed.

The jack 300 compresses the top, bottom, left and right of the circular steel pipe in the central direction to form four planes on the top, bottom, left and right, and includes four arc surfaces formed between the four planes. Forming a centrifugal polygonal steel pipe 310, L-shaped angles 320 are coupled to the arc surface of the centrifugal polygonal steel pipe 310, and coupling flanges 330 are coupled to both ends of the centrifugal polygonal steel pipe 310. can In addition, the corners of the square steel pipe 340 are respectively coupled to the four planes inside the centrifugal polygonal steel pipe 310, and one side of the screw rods 350 between the centrifugal polygonal steel pipe 310 and the square steel pipe 340 By inserting the sliding protruding and retracting, the other side of the screw rods 350 can be exposed. A second coupling flange 360 may be coupled to the other exposed ends of the screw rods 350 . In addition, circular pipes 370 may be further installed between the arc surface of the centrifugal polygonal steel pipe 310 and the side surface of the square steel pipe 340 , and one side of the screw rods 350 is inserted into the circular pipes, respectively, to slide in and out. can do. A nut may be provided on the outside of the coupling flange 330 so that the screw rods 350 are rotated and retractable.

The following describes the manufacturing process of the present invention jack 300 configured as described above and the construction process of the retaining structure using the same.

First, according to the design drawing, a circular steel pipe is formed by rolling a plate body, or a circular steel pipe is prepared in advance, and four planes are formed on the top, bottom, left, and right by compressing the top, bottom, left, and right of the circular steel pipe in the center direction, and between the four planes By forming four arc surfaces, it is possible to form a centrifugal polygonal steel pipe 310 having a quadrangular shape in which four corners are rounded.

In addition, the L-shaped angles 320 formed to fit the length of the centrifugal polygonal steel pipe 310 are welded to cover the four arc surfaces of the centrifugal polygonal steel pipe 310, and are coupled to both ends of the centrifugal polygonal steel pipe 310. The flange 330 may be welded. A heonchi portion may be welded between the coupling flange 330 and the angle 320 .

In addition, a rectangular steel pipe 340 may be welded to the inside of the centrifugal polygonal steel pipe 310 , and corners of the square steel pipe 340 may be welded to four planes of the centrifugal polygonal steel pipe 310 . In addition, a circular pipe 370 may be further installed between the inner surface of the arc surface of the centrifugal polygonal steel pipe 310 and the outer surface of the square steel pipe 340 , and the coupling flange 330 on the same line as the circular pipe 370 has a screw rod. 350 may be rotatably installed. In addition, the second coupling flange 360 may be coupled to the exposed other end of the screw rods 350 to form the jack 300 .

Referring to FIG. 13, the process of forming the retaining wall using the jack 300, the bracket 200, and the brace 100 formed by the above process will be described. can be installed. In addition, the wale 10 can be installed on the front of the pile. The wale 10 may be installed in a conventional manner, and the clipboard 200 may be coupled to the wale 10 . The connecting part 260 and the coupling flange 230 of the bracket 200 are in close contact with the band 10, and the connecting part 260 and the coupling flange 230 and the band 10 are coupled by fastening with a bolt/nut. can In addition, the coupling flange 360 of the jack 300 is in close contact with the coupling flange 230 of the bracket 200, and can be coupled by fastening with a bolt/nut, and the coupling flange 330 of the jack 300 The coupling flange 130 of the beotimbo 100 can be brought into close contact and coupled by fastening with a bolt/nut. By coupling the jack 300 and the brace 100 with bolts/nuts, the brace 100 and the jack 300 and the bracket 200 can support the retaining wall.

Here, the length of the jack 300 can be adjusted by rotating the screw rods 350 of the jack 300, or the length of the jack 300 can be adjusted by rotating the nut to adjust the protruding and retracting length of the screw rod 350. have.

In addition, the jack 300 has been described as being installed between the bracket 200 and the brace 100, but the jack 300 is a band 10 and a brace 100 and a brace 100 and a brace 100. It can also be installed in between.

In addition, referring to FIGS. 14 to 16 , the support beam 30 may further include a second fixing structure 50 for fixing the beam 100 and the vertical pile 20 seated on the support beam 30 .

The beotimbo second fixing structure 50 may include a pair of second side members 51 , a second fastening member 52 , and a second coupling member 53 .

A pair of second side members 51 may be installed on both upper and lower sides of the beotimbo 100 . The side member 51 is a side of the beotimbo 100, that is, a first surface in contact with the upper or lower surface, and a second surface that is bent in a right angle direction from the first surface and is in contact with the flange of the other side of the vertical pile 20. can do.

The second fastening member 52 may couple one side of the pair of second side members 51 to the vertical pile 20 , respectively. The second fastening member 52 may couple the second side of the second side member 51 with the other flange of the vertical pile 20 . The second fastening member 52 may be a bolt/nut.

The second coupling member 53 may couple the pair of second side members 51 to each other. The second coupling member 53 may couple the first surfaces of the pair of second side members 51 to each other. The second coupling member 53 may be a long bolt and a nut.

It may further include a second fitting portion 54 coupled to the other flange of the vertical pile (20). The second fitting portion 54 may extend in a right angle direction from the second surface and then be bent again in a right angle direction. The flange of the other side of the vertical pile 20 may be installed to be fitted between the second surface and the second fitting portion 54 .

Beotimbo second fixing structure 50 can be firmly fixed to the beotimbo 100 to the vertical pile (20). Therefore, the support beam 30 is coupled to the vertical pile 20, and the beotimbo 100 is coupled to the support beam 30 and the vertical pile 20 at the same time, so that the beotimbo 100 is front and back, left and right, all directions up and down can be firmly fixed in

In addition, referring to FIGS. 17 to 18 , the beotimbo 100 fixed to the beotimbo fixing structure 40 may be further fixed to the beotimbeam second fixing structure 50 . The first surface of the pair of side members 51 may be in close contact with the side of the beotimbo 100 , that is, on a horizontal plane, and at the same time, the end of the second surface may be in contact with the other flange of the vertical pile 20 . At this time, the fitting portion 74 formed on the second surface may be coupled to the other side flange of the vertical pile 20 is fitted.

After fastening and coupling the other side flange of the vertical pile 20 to which the fitting part 74 is coupled and the second surface of the side member 71 with the second fastening member 73, the second side of the pair of side members 71 By fastening one side with the second coupling member 73 , the brace 100 can be fixed with the second fixing structure 70 . The beotimbo 100 is a retaining wall while preventing the flow of the beotimbo 100 by being constrained and fixed inside the closed space of the rectangular shape formed by the vertical pile 20, a pair of side members 71 and the coupling member 73. can be firmly supported.

In the above, even though it has been described that all the components constituting the embodiment of the present invention operate by being combined or combined into one, the present invention is not necessarily limited to this embodiment. That is, within the scope of the present invention, all the components may be configured or operated by selectively combining one or more components. In addition, terms such as "comprises", "comprises" or "have" described above mean that the corresponding component may be inherent, unless otherwise specified, excluding other components. Rather, it should be construed as being able to further include other components. All terms, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs, unless otherwise defined. Terms commonly used, such as those defined in the dictionary, should be interpreted as being consistent with the contextual meaning of the related art, and are not interpreted in an ideal or excessively formal meaning unless explicitly defined in the present invention.

The above description is merely illustrative of the technical spirit of the present invention, and various modifications and variations will be possible without departing from the essential characteristics of the present invention by those skilled in the art to which the present invention pertains. Therefore, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain, and the scope of the technical spirit of the present invention is not limited by these embodiments. The protection scope of the present invention should be construed by the following claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present invention.

10: belt
20: vertical pile
30: Jijibo
40: brace fixing structure
41: side member
42: fastening member
43: coupling member
44: fitting part
50: Beotimbo second fixed structure
51: second side member
52: second fastening member
53: second coupling member
54: second fitting part
100: brace
110: centrifugal polygonal steel pipe
120: angle
130: coupling flange
140: haunchibu
150: perfbond
160: triangle angle
200: crutches
300: jack

Claims (10)

In the support beam fixing structure for fixing the beam supported by being mounted in a direction crossing the upper side of the support beam, which is an H-shaped steel beam installed in the horizontal direction with a web on the excavation ground,
A pair of side members installed on both sides of the beotimbo;
Fastening members for coupling the lower portions of the pair of side members to the support beams, respectively;
Including; a coupling member for coupling the upper portions of the pair of side members to each other;
The support beam is constrained and fixed inside the closed space of a rectangular shape formed by the support beam, a pair of side members and the coupling member,
The side member includes a first surface in contact with the side surface of the beotimbo, two surfaces bent in a right angle direction from the first surface and in contact with the flange of one side of the support beam,
The fastening member combines the second surface of the side member and one side flange of the support beam,
The coupling member is a beotimbo fixing structure, characterized in that for coupling the first surface of the pair of side members to each other. The method according to claim 1,
After extending in a right angle direction from the second surface, it further comprises a fitting portion bent downward in a right angle direction again, wherein the flange of one side of the support beam is installed to be fitted between the second surface and the fitting portion. fixed structure. The method according to claim 1,
It is installed vertically on the excavation ground, and one side flange further comprises an H-shaped steel vertical pile which is coupled in contact with the other flange of the support beam, wherein the vertical pile is installed so as to be in contact with the support beam. . Belts installed on the side of the excavated ground;
Beotimbo installed in a direction crossing the wale;
While being installed in a direction intersecting with the beotimbo from the lower side of the beotimbo, the web is installed in the horizontal direction to support the H-shaped steel support beam to support the beotimbo;
Including;
The beotimbo fixing structure is,
A pair of side members installed on both sides of the beotimbo;
Fastening members for coupling the lower portions of the pair of side members to the support beams, respectively;
Including; a coupling member for coupling the upper portions of the pair of side members to each other;
The support beam is constrained and fixed inside the closed space of a rectangular shape formed by the support beam, a pair of side members and the coupling member,
The side member includes a first surface in contact with the side surface of the beotimbo, two surfaces bent in a right angle direction from the first surface and in contact with the flange of one side of the support beam,
The fastening member combines the second surface of the side member and one side flange of the support beam,
The coupling member is a retaining structure using a beotimbo fixing structure, characterized in that the first surface of the pair of side members is coupled to each other. 5. The method according to claim 4,
After extending in a right angle direction from the second surface, it further comprises a fitting portion bent downward in a right angle direction again, wherein the flange of one side of the support beam is installed to be fitted between the second surface and the fitting portion. A retaining structure using a fixed structure. 5. The method according to claim 4,
It is installed vertically on the excavation ground, and one side flange further comprises an H-shaped steel vertical pile which is coupled in contact with the other flange of the support beam, wherein the vertical pile is installed so as to be in contact with the support beam. retaining structure using 5. The method according to claim 4,
Retaining structure using a beotimbo fixing structure, characterized in that it further comprises a bracket that is installed between the wale and the beotimbo. 8. The method of claim 7,
The blackhead is
Including four planes formed in a flat shape on the top, bottom, left and right by compressing the top, bottom, left, and right of the circular steel pipe in the central direction, and four arc surfaces formed in an arc shape as a connection between the four planes, the four corners are round Centrifugal polygonal steel pipe with true square shape; L-shaped angles coupled to the outer surface of the centrifugal polygonal steel pipe; and coupling flanges coupled to both ends of the centrifugal polygonal steel pipe. H-beam cut into a triangular shape to be coupled to the inside of the coupling flange; branch portions in which both sides of the centrifugal polygonal steel pipe are cut and removed, respectively, coupled to both cut surfaces of the triangular H-shaped steel through the removed portion; Retaining structure using a beotimbo fixing structure, characterized in that it includes; a connection part coupled to the wale at the same time as each coupled to the branch part. 8. The method of claim 7,
Retaining structure using a beotimbo fixing structure, characterized in that it further comprises a jack installed between the wale and beotimbo, between the bracket and beotimbo, or between the beotimbo and beotimbo. 10. The method of claim 9,
the jack,
Including four planes formed in a flat shape on the top, bottom, left and right by compressing the top, bottom, left, and right of the circular steel pipe in the central direction, and four arc surfaces formed in an arc shape as a connection between the four planes, the four corners are round Centrifugal polygonal steel pipe with true square shape; L-shaped angles coupled to the outer surface of the centrifugal polygonal steel pipe; and coupling flanges coupled to both ends of the centrifugal polygonal steel pipe. a square steel pipe in which corners are respectively coupled to four planes inside the centrifugal polygonal steel pipe; Screw rods having one side inserted between the centrifugal polygonal steel pipe and the rectangular steel pipe to slide in and out, and the other side being exposed; A retaining structure using a beotimbo fixing structure comprising a; a second coupling flange coupled to the other exposed end of the screw rods.

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