KR101967693B1 - CIP retaining wall with for easy construction - Google Patents

Abstract

The present invention relates to a CIP wall, which continuously forms a plurality of concrete piles having H-steel extended in a first direction therein. The concrete pile has an opening so as to expose a part of the H-steel. A protruding connection member is welded and coupled to the H-steel through the opening. The protruding connection member includes: a body unit connected to the H-steel; a plurality of reinforcing bar fixing units provided to protrude from the outside of the body unit; and a space unit in which concrete is received in the body unit.

Description

CIP retaining wall with for easy construction

The present invention relates to a CIP mud wall that is easy to construct, and more particularly, to a CIP mud wall that is easy to install and is reinforced with rigidity.

CIP (Cast In Placed Pile) construction is one of the construction methods of earth wall to prevent ground collapse due to excavation during excavation construction for underground structures. It is necessary to use large-diameter excavator such as earth auger before ground excavation. After drilling to the depth, it is a method of forming the concrete wall in a row by installing field concrete piles in the ground continuously in the drilled ball.

This CIP method can be applied to almost any soil regardless of the ground conditions, and when excavation is completed, it is possible to join the underground retaining wall when constructing the underground structure, so that the underground structure can be constructed in close proximity. Not only can it be minimized, it is also possible to maximize the construction space of underground structures within the site, which has the advantage of maximizing land utilization.

On the other hand, steel pipe casing is used in high ground or soft ground to prevent the collapse of hollow walls or the relaxation of surrounding ground during drilling.

The steel pipe casing should be installed in the ground at the same time as excavation by earth auger. When the reinforcement in the drill hole and concrete casting are completed, it is drawn and reused before the concrete is hardened.

Since the backing earth pressure on the wall of the soil in the deep-depth excavation work or the ground with high underground water level is much larger than the general case, the H-beam is embedded in the CIP concrete at regular intervals to increase the rigidity of the wall.

On the other hand, the CIP method has the advantage of being able to construct a soil barrier even in a narrow working space and having a rigidity compared to the cross-sectional size, whereas the pillars are constructed to be inclined rather than vertically, so that the pillars are opened. Aggregate separation due to the flow rate of the groundwater or poor soil conditions, due to the poor construction of column bulbs, etc., is necessary to reinforce the joints and to reinforce the joints. Additional ordering methods such as acceptance LW grouting, SGR grouting and cement grouting are required, which is time and costly.

Therefore, various studies have been conducted to make the CIP wall provided with such CIP walls more robust and easy to construct.

Prior Patent

Korea Patent Registration No. 10-1633840 (June 21, 2016)

An object of the present invention is to provide an easy-to-install CIP mud wall having a structure capable of easily and firmly fixing adjacent concrete piles.

In addition, another object of the present invention is to prevent the increase in construction period and construction cost by absorbing the construction error, as well as the construction is possible without the use of heavy equipment, easy construction CIP mud can prevent construction deterioration and construction cost increase To provide a wall.

In addition, another object of the present invention is a means for integrating the temporary construction wall wall with the outer wall of the building body basement to be constructed after the excavation construction by welding the connecting member to the concrete pile embedded with the H-shaped steel of the CIP method through the reinforcing bars The purpose is to provide an easy-to-install CIP mud wall that can be firmly supported against external forces by fixing concrete piles.

According to one aspect of the invention, embodiments of the present invention in the CIP wall formed by continuously forming a plurality of concrete piles having H-shaped steel extending in the first direction therein, the concrete pile is a part of the H-shaped steel Is provided with an opening to expose the, through the opening protruding connecting member is welded to the H-beam, the protruding connecting member is a body portion connected to the H-beam, a plurality of protruding outward from the body portion And four reinforcing bars, and a CIP wall including a space part in which concrete is stored inside the body part.

The body portion is provided in the form of a rectangular box having a space portion connected to pass through one side and the other side, the edge of one side of the body portion is welded and coupled to the H-beam, the reinforcing fixing portion is smaller than the head portion and the head portion It includes an extension extending in the form of a rod from the head portion in diameter, the reinforcing fixing portion is provided with a plurality can be connected to the end of the extension portion is welded to the outer surface of the body portion.

The body portion is provided in a plate shape and has a space portion therein, one side of the body portion is welded to the H-shaped steel, the reinforcing fixing parts protrude in the opposite direction to the H-shaped steel on both sides with the center of the space portion, respectively It may be provided to be.

The body portion may include a pair of first and second main plates and the first and second main plates and the first and second main plates and the first and second main plates each having a U-shaped cross section. A space part formed to receive concrete therein, and the first and second main plates are spaced apart from each other to face portions opened to each other so that one end of each of the first and second main plates is connected to the H-shaped steel. The welding plate and the extension plate are provided on the upper and lower surfaces of the first and second main plates, respectively, to connect the first and second main plates to each other and are spaced apart from the H-shaped steel. The parts may be provided to face in opposite directions with respect to each of the first and second main plates.

The extension plate is provided in a direction perpendicular to the H-beam, the rebar fixing portion includes a head portion and an extension portion extending in the form of a rod from the head portion with a diameter smaller than the head portion, the reinforcing rod fixing portion is Ends of the extension parts are welded to the outer surfaces of the first and second main plates, and the head part of the reinforcing fixing part connected to the first main plate is provided to face upward, and the head of the reinforcing fixing part connected to the second main plate is provided. The part may be provided to face downward.

One end of each of the first and second main plates is welded to the H-shaped steel, and the other end of the first end and the other end of the bolt hole is inserted into the inside of at least a part of the other end of the first and second main plate The bolting plate having one or more is coupled, it may be connected to a separate channel (channel) or H-shaped steel through the bolt hole provided in the bolting plate.

The bolting plate is formed in a plate shape and has a support plate having a bolt hole therein and a sliding protrusion protruding to a thickness smaller than that of the support plate in each of the upper and lower portions of the support plate, and the other end of each of the first and second main plates. An inner surface is provided with a sliding receiving portion concave inwardly so that the sliding protrusion is inserted, and the bolting plate is slidably inserted and fastened at the other ends of the first and second main plates and then welded and fixed.

The outer surface of the H-shaped steel may further include at least one guide portion provided in a second direction opposite to the first direction, wherein the guide portion may be exposed through the opening to guide a portion to which the protruding connection member is welded. .

The guide part may be provided to protrude on the outer surface of the H-beam to increase the contact area between the H-beam and the concrete.

The outer surface of the body portion of the protruding connection member may further include a sanding layer provided by sanding.

The body portion is provided with a plurality of through holes provided to penetrate the body portion, the through hole may be provided in a trapezoidal shape so that the diameter is reduced in the direction from the outer surface to the inner surface of the body portion.

The outer surface of the extension may be provided with a plurality of protruding ribs projecting vertically from the outer surface of the extension portion so that the reinforcement is reinforced to the reinforcing bars fixed.

The outer surface of the body portion is provided with a first fastening portion for fastening the ends of the reinforcing bars, the second fastening portion has a second fastening portion for fastening with the first fastening portion, the first fastening portion is the body It may be provided to penetrate inward from the outer surface of the part has a screw thread on the inner circumference, and the second fastening portion may include a screw thread provided to screw the thread of the first fastening portion.

The rebar fixing part may include one or more nuts, and the outer surface of the rebar fixing part may include one or more threads that are spaced apart from each other to be screwed with the nut.

The reinforcing fixing part may be inserted into the other surface from one surface of the body portion so as to pass through the space portion of the body portion.

The outer surface of the reinforcing fixing part may further include a reinforcing bar fixing part for fixing the reinforcement to the reinforcing fixing part, the reinforcing part may be provided in a concave shape or a thread form inward from the outer surface of the reinforcing fixing part.

The CIP wall continuously aligns a plurality of concrete piles provided with the H-shaped steel, and then breaks a portion of the concrete pile to form an opening, exposes a portion of the H-shaped steel through the opening, and the protruding connecting member After welding to the H-shaped steel is formed by reinforcing the reinforcing bars through the protruding connecting member adjacent to each other, the concrete pile may be formed by pouring concrete using a CIP wall forming device.

The CIP wall forming apparatus includes a cylindrical casing having a through hole having a circular cross section therein; And a steel guide received in the casing and fastened to the upper surface of the casing, wherein the steel guide has an inner frame having a rectangular cross section so that the H-shaped steel is inserted therein, and at least an outer surface of the inner frame. At least one round frame provided to cover a part, the round frame is provided in a form corresponding to the inner surface of the casing, the upper end of the round frame is provided with a fastening flange to be fastened with the upper side of the casing Can be.

The fastening flange may include a flange portion extending vertically from the upper end of the round frame toward the outside to contact the upper end of the casing; A fastening portion extending vertically from the flange portion toward the lower portion and rounded to correspond to an outer surface of the casing; And one or more fastening holes provided to penetrate the fastening part and fastened by a separate fastening member.

The H-shaped steel, a pair of first plate facing each other; And a first connection bridge vertically connecting the central portions of the pair of first plates.

The H-shaped steel further includes a reinforcing member spaced apart from the first connecting bridge to connect the sock end of the pair of first plates, the reinforcing member may be connected by welding a plate-shaped reinforcing steel plate.

According to the present invention as described above, it is possible to provide an easy-to-install CIP mud wall having a structure capable of easily and firmly fixing adjacent concrete piles.

In addition, according to the present invention can not only prevent the construction period and increase the construction cost by absorbing the construction error, but also can be installed without using heavy equipment to facilitate the construction of CIP mud walls that can prevent construction degradation and increase construction costs Can provide.

In addition, according to the present invention by welding the connecting member to the concrete pile embedded with the H-shaped steel of the CIP method as a means for integrating the temporary construction wall wall with the outer wall of the building body basement to be constructed after the excavation construction to the neighboring concrete piles through the reinforcement By fixing, it is possible to provide an easy-to-install CIP mud wall that can be firmly supported against external forces.

1 is a view schematically showing a CIP wall according to an embodiment of the present invention.
Figure 2a is a view showing the CIP wall of Figure 1 from above.
FIG. 2B is a view schematically showing a state in which reinforcing bars are arranged on the CIP wall of FIG. 1.
Figure 3a is an exploded perspective view of the CIP wall forming apparatus according to an embodiment of the present invention.
FIG. 3B is a view schematically illustrating the use of the CIP wall forming apparatus of FIG. 3A.
Figure 4 is an exploded perspective view of the concrete pile constituting the CIP wall according to an embodiment of the present invention.
5 is a front view of the protrusion connecting member of FIG. 4.
6 is a perspective view of a concrete pile provided with a protruding connection member.
7 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.
8 is a perspective view of the protrusion connecting member of FIG. 7.
9 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.
10 is a perspective view of the protrusion connecting member of FIG. 9.
11 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.
12 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.
13 is a perspective view of a protrusion connecting member according to another embodiment of the present invention.
14 is a perspective view of an H-beam according to another embodiment of the present invention.
FIG. 15 is a view from the top of the H-beam of FIG. 14.
16 is a perspective view of an H-beam according to another embodiment of the present invention.
17 is a view illustrating a concrete pile provided with the H-beam of FIG. 16.
18 is a perspective view of a protrusion connecting member according to another embodiment of the present invention.
19A and 19B are perspective views of a protrusion connecting member according to still another embodiment of the present invention.
20 is an exploded perspective view of a protrusion connecting member according to another embodiment of the present invention.
21 is a perspective view of the rebar fixing part of FIG. 20.
22 is a perspective view of a protrusion connecting member according to another embodiment of the present invention.
FIG. 23 is an exploded perspective view of FIG. 22.
24 and 25 are exploded perspective views of the reinforcing bars according to another embodiment of the present invention.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms. In the following description, when a part is connected to another part, it is only directly connected. It also includes cases where other media are connected in between. In the drawings, parts irrelevant to the present invention are omitted for clarity, and like reference numerals designate like parts throughout the specification.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a view schematically showing a CIP wall according to an embodiment of the present invention. Figure 2a is a view showing the CIP wall of Figure 1 from above. FIG. 2B is a view schematically showing a state in which reinforcing bars are arranged on the CIP wall of FIG. 1. Figure 3a is an exploded perspective view of the CIP wall forming apparatus according to an embodiment of the present invention. FIG. 3B is a view schematically illustrating the use of the CIP wall forming apparatus of FIG. 3A. Figure 4 is an exploded perspective view of the concrete pile constituting the CIP wall according to an embodiment of the present invention. 5 is a front view of the protrusion connecting member of FIG. 4. 6 is a perspective view of a concrete pile provided with a protruding connection member.

In one embodiment of the present invention in the CIP wall formed by continuously forming a plurality of concrete piles 10 having the H-shaped steel 20 extending in the first direction therein, the concrete pile 10 is the H-shaped steel An opening 11 is provided to expose a portion of the 20, and the protruding connecting member 100 is welded to the H-shaped steel 20 through the opening, and the protruding connecting member 100 is the H-shaped steel. Body portion 110 connected to the 20, a plurality of reinforcing fixing parts 120 provided to protrude outward from the body portion 110, and the space portion in which the concrete is stored in the body portion 110 It relates to a CIP wall comprising (110a).

The CIP wall is to use the CIP wall forming apparatus 40 for building the basement outer wall using the CIP method, the reinforcing bars such as H-beams (20) in the interior to prevent the earth and earth collapse before underground destruction when building the basement of the building It is a kind of small-diameter concrete piles (10) made by filling the concrete and the like to provide a CIP wall which is a temporary structural structure used in the CIP method to form a heat-heated wall by continuously forming the concrete piles (10) Can be. In addition, the CIP wall according to the present embodiment may be used to construct an underground outer wall, etc., which is installed by joining with the CIP wall after digging underground into the CIP wall.

The CIP wall continuously aligns a plurality of concrete piles 10 provided with the H-shaped steel 20, and then breaks a portion of the concrete piles 10 to form an opening 11 and the opening 11 is formed. After exposing a portion of the H-shaped steel 20 through, the protruding connecting member 100 is welded to the H-shaped steel 20 through the opening 11 and adjacent to the protruding connecting member 100. Through the reinforcing bars (51, 52) can be formed through.
Each of the concrete piles 10 is provided with one H-beam 20 therein, the concrete pile 10 is the first plate 21 of the H-beams 20 provided in the same direction The openings 11 may be aligned to face each other, and the openings 11 may have a size corresponding to a cross section of the body portion 110 to expose the first plate 21 of the H-shaped steel 20.
The protruding connecting member 100 is provided at a height smaller than that of the H-shaped steel 20, and is coupled to the first plate 21 of the H-shaped steel 20 perpendicular to the first direction and adjacent to each other. The protruding connecting member 100 provided in the 20 is provided at a position facing each other so that the protruding connecting members 100 adjacent to each other may be connected by reinforcing the reinforcing bars 51 and 52.

The concrete pile 10 may be formed by pouring concrete using the CIP wall forming apparatus 40. The CIP wall forming apparatus 40 includes a cylindrical casing 41 having a through hole having a circular cross section therein; And a steel guide 42 received inside the casing 41 and fastened to an upper surface of the casing 41.

The steel guide 42 has one or more round frames provided to cover at least a portion of the inner frame 43 having a rectangular cross section so that the H-shaped steel 20 is inserted therein, and the inner frame 43 ( It includes a 44, the round frame 44 is provided in a form corresponding to the inner surface of the casing 41, the upper end of the round frame 44 is fastened to be fastened with the upper side of the casing 41 Flange 45 may be provided.

The fastening flange 45 may include a flange portion 45a extending vertically from the upper end of the round frame 43 to the outside to contact the upper end of the casing 41; A fastening part 45b extending vertically from the flange part 45a toward the bottom to be rounded to correspond to the outer surface of the casing 41; And at least one fastening hole 45c provided to penetrate through the fastening part 45b and fastened by a separate fastening member 1.

The H-shaped steel 20 includes a pair of first plates 21 facing each other; And a first connection bridge 22 vertically connecting the center portions of the pair of first plates 21.

The concrete pile 10 constituting the CIP wall inserts the steel guide 42 into the casing 41 and uses a fastening flange 45 of the steel guide 42 to separate the fastening member 1. For example, the steel guide 42 may be fixed in the casing 41 by fastening with a bolt.

Insert the H-shaped steel 20 into the steel guide 42 to align it, draw the steel guide 42 and pour concrete into the casing 41, and then remove the steel guide 42 to form an inner center. The concrete pile 10 provided with the H-shaped steel 20 guided in the position can be manufactured.

After the plurality of concrete piles 10 are aligned, the openings 11 may be formed at positions corresponding to each of the concrete piles 10 so that the H-shaped steel 20 is exposed. The protruding connecting member 100 is welded to the H-shaped steel 20 exposed through the opening 11, and reinforcing bars 51 and 52 are disposed on the protruding connecting members 100 adjacent to each other to form a CIP wall. Can be formed.

The CIP wall forming apparatus 40 is a cylindrical guide having a cylindrical shape that is provided inside the casing 41, the inside of the casing 41, and provides a space of a hexahedron to guide the position of the H-shaped steel 20 therein ( 42). In addition, the CIP wall may be reinforced by the reinforcing bars (51, 52) are connected to the beam and the slab is fixed to the outer wall (50) to form an underground wall.

The CIP wall is fixed to the outer wall 50 of various thicknesses and positions can change the position and size of the protruding connecting member 100, the reinforcement shape of the reinforcing bars (51, 52), the configuration of the beams and slabs Can form underground walls.

The upper outer surface of the round frame 44 and the fastening flange 45 may be spaced apart at intervals corresponding to the thickness of the casing 41 so that the upper end of the casing 41 is inserted therebetween. The steel guide 42 is inserted while sliding into the casing 41 from the upper portion of the casing 41, and easily with the casing 41 by the fastening flange 45 at the upper portion of the steel guide 42. Since it is fixed so that the worker can be easily installed.

 In addition, the steel guide 42 is connected to at least a portion of the inner frame 43 and the outer surface of the inner frame 43 and the inner frame 43 providing a rectangular opening 43a of the cross section is provided in the casing 41 It may be made of a round frame 44 in contact with the inner surface of.

One or more openings 44a are provided in each of the round frames 44, and the openings 44a provided in the round frame 44 are longitudinally positioned with the openings 43a provided in the inner frame 43. It may be provided to be aligned to deviate from each other.

For example, the openings 43a and 44a provided in the longitudinal direction of each of the inner frame 43 and the round frame 44 may be aligned to be spaced apart from each other. Openings 43a and 44a are provided in each of the inner frame 121 and the round frame 122 to reduce the weight of the inner frame 121 and the round frame 122. In addition, the openings 43a and 44a are provided so as not to correspond to each other, for example, such that the horizontal alignment of the openings 43a and 44a are shifted from each other so that durability of the inner frame 43 and the round frame 44 with respect to external forces is achieved. Can improve.

The H-shaped steel 20 is aligned with the center of the casing 41 by the steel guide 42 and is located in the center of the CIP wall manufactured by pouring concrete into the interior of the casing 41 to reinforce strength. Can function as an aggregate.

The CIP wall forming apparatus 40 may be formed by a casing guide device 30 is formed of a main heating wall that is continuously guided by a position. The casing guide device 30 may be formed of a pair of guide main bodies 31 provided to be rounded in a fan shape and having rounded surfaces facing each other. The CIP wall forming apparatus 40 may be easily aligned by inserting the CIP wall forming apparatus 40 into the cylindrical storage space 33 formed by the pair of guide bodies 31.

The H-shaped steel 20 is accommodated therein, and the concrete pile 10 formed by placing the concrete (c) may have an opening 11 to expose the H-shaped steel 20. The protruding connecting member 100 may be welded and coupled through the opening 11. The protruding connecting member 100 may be connected to the H-shaped steel 20 by welding.

The protruding connection member 100 may be formed of a body portion 110 to be welded and coupled to the H-shaped steel 20 and a reinforcing fixing portion 120 protruding from the body portion 110 to be reinforced. The interior of the body portion 110 is provided with a space portion (110a) which is an empty space can be stored later in the concrete.

The body portion 110 is provided in the form of a rectangular box having a space portion (110a) connected to pass through one surface and the other surface, the edge of one surface of the body portion (110a) is welded with the H-shaped steel (20) Can be combined.

The rebar fixing part 120 includes a head part 121 and an extension part 122 extending in the shape of a rod from the head part 121 to a diameter smaller than the head part 121, and the rebar fixing part ( 120 may be provided in plurality, and the ends of the extension part 122 may be welded to the outer surface of the body part 110.

The protruding connecting member 100 may be connected to the H-shaped steel 20 to connect neighboring concrete piles 10, and may be easily coupled to a CIP wall, an underground outer wall, and a slab.

7 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention, Figure 8 is a perspective view of the protrusion connecting member of FIG.

Referring to FIGS. 7 and 8, the protruding connecting member 200 may be welded to the H-shaped steel 20 through an opening of the concrete pile 10 having the H-shaped steel 20 therein.

In the protruding connection member 200, the body portion 210 is provided in a plate shape and has a space portion 210a therein, and one surface of the body portion 210 is welded to the H-shaped steel 20. Can be. In addition, the rebar fixing part 220 may be provided to protrude in the opposite direction to the H-shaped steel 20 on both sides with the space portion 210a as the center.

For example, the protruding connecting member 200 according to the present exemplary embodiment may form a rectangular opening therein by using a square iron plate or the like, and may attach it to the H-shaped steel 20 by welding. Protruding connection member 200 of such a structure can be used between the slab and the wall where the slab is connected to the narrow space facing.

9 is not a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention, Figure 10 is a perspective view of the protrusion connecting member of FIG.

9 and 10, in the protruding connecting member 300 according to the present embodiment, the body portion 310 may include a pair of first and second main plates 311 and 312 having a cross-section in a U-shape. One or more extension plates 330 connecting the first and second main plates 311 and 312 to each other and the first and second main plates 311 and 312 and the extension plates 330 are formed therein. It may include a space portion 310a for receiving concrete.

The first and second main plates 311 and 312 are provided to be spaced apart from each other so that the openings face each other so that one end of each of the first and second main plates 311 and 312 may be connected to the H-shaped steel 20. The welding plate and the extension plate 330 are provided on upper and lower surfaces of the first and second main plates 311 and 312, respectively, to connect the first and second main plates 311 and 312 to each other. But it may be provided spaced apart from the H-beam (20). In addition, the reinforcing bars 320 may be provided to face in opposite directions with respect to each of the first and second main plates 311 and 312.

The first and second main plates 311 and 312 may be provided to face each other in a direction facing each other. One end of each of the first and second main plates 311 and 312 is welded to the H-shaped steel 20, and an extension plate 330 is disposed between the first and second main plates 311 and 312. It can be fixed by. Since the first and second main plates 311 and 312 can freely control the distances spaced from each other, the first and second main plates 311 and 312 can be welded to the H-shaped steel 20 in various sizes.

The extension plate 330 may be provided in a plate shape to extend the first and second main plates 311 and 312 from upper and lower surfaces of the first and second main plates 311 and 312. The extension plate 330 and the first and second main plates 311 and 312 may form a space 330a therein to provide a space in which the concrete is stored when the concrete is poured.

11 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.

Referring to FIG. 11, the protruding connecting member 400 according to the present exemplary embodiment includes a body portion 420 and a body portion including a pair of first and second main plates 411 and 412 having a cross-sectional shape in a c-shape. It may be made of a reinforcing bar 420 provided to protrude outward from the 420. The pair of first and second main plates 411 and 412 may be provided on the upper and lower portions of the H-shaped steel 20, respectively, and may be provided to face portions opened to each other. Both side surfaces of the first and second main plates 411 and 412 may be connected by the extension plate 430. The extension plates 430 may be provided in pairs so as to face each other in a direction perpendicular to the H-shaped steel 20.

The rebar fixing part 420 may include a head part 421 and an extension part 422 extending in a rod form from the head part 421 to a diameter smaller than the head part 421. The rebar fixing part 420 is provided with the ends of the extension part 422 welded to the outer surfaces of the first and second main plates 411 and 412, but are connected to the first main plate 411. The head portion 421 of the 420 may be provided to face upwards, and the head part 421 of the rebar fixing part 420 connected to the second main plate 412 may be provided to face downwards.

12 is a perspective view of a concrete pile provided with a protrusion connecting member according to another embodiment of the present invention.

Referring to FIG. 12, the protruding connecting member 500 according to the present exemplary embodiment forms a space portion 510a having a substantially rectangular cross section by the first and second main plates 511 and 512 and the extension plate 530. It may include a body portion 510 and the reinforcing fixing portion 520 provided on the outer surface of the body portion 510. The protruding connecting member 500 may further include a bolting plate 540 connected to the other ends of the first and second main plates 511 and 512. In addition, the extension plate 530, for example, may use a plate-shaped iron plate, it can be controlled to various sizes.

One end of each of the first and second main plates 511 and 512 is welded to the H-shaped steel 20, and the other end of the first and second main plates 511 and 512 is opposite to the other end of the first and second main plates 511 and 512. A bolting plate 540 having one or more bolt holes 541 into which a bolt is inserted may be blocked by at least a portion thereof and may be coupled thereto. It may be connected to a separate channel (channel) or H-shaped steel through the bolt hole 541 provided in the bolting plate 540.

13 is a perspective view of a protrusion connecting member according to another embodiment of the present invention.

Referring to FIG. 13, the protruding connecting member 600 according to the present embodiment includes a pair of first and second main plates 611 and 612 and first and second main plates 611 and 612 facing each other. It may include a body portion 610 consisting of a connecting plate 630 connecting the upper surface and the lower surface and the reinforcing fixing portion 620. One end of the first and second main plates 611 and 612 may be welded to the H-shaped steel, and a bolting plate 640 may be provided at the other end opposite to the one end.

The bolting plate 640 is formed in a plate shape and has a support plate 642 having a bolt hole 641 therein and a sliding protrusion protruding to a thickness smaller than the support plate 642 at each of the upper and lower portions of the support plate 642. 643 may be provided.

On the other inner surface of each of the first and second main plates 611 and 612, a sliding accommodating portion 613 is concave inward so that the sliding protrusion 643 is inserted, and the bolting plate 640 is provided with the first and second main plates 611 and 612. And the other end of the second main plates 611 and 612 are slidably inserted and fastened and then welded and fixed.

The bolting plate 640 is provided with the sliding protrusion 643, and the sliding protrusion 643 is inserted through the sliding housing 613 provided in each of the first and second main plates 611 and 612. As a result, the construction is easy and additional welding may be used to more firmly fix the bolting plate 640 to the first and second main plates 611 and 612.

14 is a perspective view of the H-beam according to another embodiment of the present invention, Figure 15 is a view from the top of the H-beam of FIG.

14 and 15, the H-shaped steel 20a may be provided as a reinforcing material in the concrete pile constituting the CIP wall according to the present embodiment. The H-shaped steel 20 includes a pair of first plates 21 facing each other and provided in a plate shape; And a first connection bridge 22 vertically connecting the center portions of the pair of first plates 21.

The H-shaped steel 20a may further include a reinforcing member 23 spaced apart from the first connecting bridge 22 to connect a sock end of the pair of first plates 21, the reinforcing member 23 ) Can be connected to the plate-shaped reinforcing steel plate welded.

One or more reinforcing members 23 may be provided to compensate for the connection between the pair of first plates 21 to further improve the strength of the H-shaped steel 20. The reinforcing member 23 is provided in a plate shape and arranged between the pair of first plates 21, and spaced apart from the first connection bridge 22, and the pair is provided with the first connection bridge 22 interposed therebetween. Both ends of the first plate 21 can be connected.

16 is a perspective view of the H-beam according to another embodiment of the present invention, Figure 17 is a view showing a concrete pile provided with the H-beam of Figure 16 inside.

16 and 17, the H-shaped steel 20b provided inside the concrete pile 10 may be provided to be wrapped in the concrete c, and may be exposed to the outside by the opening 11. The outer surface of the H-shaped steel 20b may further include one or more guide portions 24 provided in a second direction opposite to the first direction, wherein the guide portions 24 are provided through the opening 11. The exposed portion may guide the portion to which the protruding connection member 100 is welded.

In addition, the guide part 24 may be provided to protrude on the outer surface of the H-shaped steel 20b to increase the contact area between the H-shaped steel 20b and the concrete (c).

The H-shaped steel 20b may be exposed through the opening 11 to weld the protruding connecting member 100. At this time, by guiding the portion provided with the protruding connecting member 100 with respect to the H-shaped steel 20b adjacent to each other by the guide portion 24 so that the position of the protruding connecting member 100 is approximately aligned so as to be connected by rebar. This can be done easily. In addition, the guide portion 24 is provided to protrude from the outer surface of the H-shaped steel (20b) to increase the contact area with the concrete (c) can further improve the strength of the concrete pile (10).

18 is a perspective view of a protrusion connecting member according to another embodiment of the present invention.

Referring to FIG. 18, an outer surface of the body 710 of the protruding connection member 700 may further include a sanding layer 701 provided by sanding sandpaper. After the sanding layer 701 is provided on the outer surface of the body portion 710 in the protruding connecting member 700, the reinforcing fixing part 720 may be welded to the sanding layer 701.

The sanding layer 701 has irregularities formed on the outer surface thereof, so that the frictional force with the reinforcing fixing part 720 is increased to facilitate welding of the reinforcing fixing part 720. In addition, when the concrete is placed on the outer surface of the protruding connecting member 700, the surface area is increased by the sanding layer 701, so that the coupling between the protruding connecting member 700 and the concrete may be more firm.

19A and 19B are perspective views of a protrusion connecting member according to still another embodiment of the present invention.

Referring to FIG. 19A, the protruding connecting member 800 according to the present exemplary embodiment includes a body 810 and a body 810 having a space 810a coupled to an H-beam and accommodating concrete therein. Reinforcing bars 820 protruding from the outer surface of the reinforcement, etc. may be provided.

The body portion 810 may be provided in a box shape provided to partition the space portion 810a and the space portion 810a provided as an empty space therein. The body portion 810 may be provided with a plurality of through holes 850 provided to penetrate the body portion 810. The through holes 850 may be provided on the upper surface and the lower surface of the body portion 810, respectively, to facilitate the inflow of concrete into the space portion 810a.

Alternatively, the through hole (850a) may be provided in a trapezoidal cross section so that the diameter is reduced in the direction from the outer surface to the inner surface of the body portion.

When placing concrete or the like on the outer surface of the protruding connecting member 800a, concrete and the like are accommodated in the inner space 810a of the body portion 810 so that the coupling of the protruding connecting member 800a is more firm. Can be. At this time, the concrete may be more easily accommodated in the space 810a through the through hole 850a provided in the body 810. The through hole 850a may have a larger diameter on the outer surface of the body 810 so that concrete or the like may be efficiently introduced into the space 810a. In addition, by connecting the concrete provided in the inner space portion 810a of the protruding connecting member 800a and the concrete provided outside of the protruding connecting member 800a through the through hole 850a. The strength on the 800a) side can be further improved.

20 is an exploded perspective view of the protruding connecting member according to another embodiment of the present invention, and FIG. 21 is a perspective view of the reinforcing fixing part of FIG. 20.

20 and 21, the protruding connecting member 900 according to the present exemplary embodiment may include a body 910 and a reinforcing bar 920. An outer surface of the body portion 910 is provided with a first fastening portion 950 to which the end of the rebar fixing part 920 is fastened, and the first fastening part 950 at the end of the rebar fixing part 920. And a second fastening part 924 fastened to the second fastening part 924. The first fastening portion 950 is provided to penetrate inward from the outer surface of the body portion 910 and has a thread on the inner circumference, and the second fastening portion 924 is screwed with the screw thread of the first fastening portion It may include a thread provided to.

The rebar fixing part 920 may be fastened to the body portion 910 by screwing, and further welded to make it more robust. The rebar fixing unit 920 may be separately provided so that the body 910 may be easily operated without interference by the rebar fixing unit 920 when the body portion 910 is first welded to the H-beam. In addition, the rebar fixing part 920 may be separately provided and fastened to the body portion 910 to variously modify the size and length of the rebar fixing part 920.

Alternatively, the reinforcing bars 920 may include a head portion 921 and an extension portion 922 having a rod shape with a diameter smaller than that of the head portion 921. The outer surface of the extension portion 922 may be provided with a plurality of protruding ribs 923 protruding vertically from the outer surface of the extension portion 922 so that the reinforcing bars are reinforced to the reinforcing fixing portion 920 is stably fixed. have. The protruding ribs 923 may reinforce the strength of the extension part 922 and at the same time, may prevent the reinforcing bars arranged on the reinforcing fixing part 920 from slipping more firmly.

22 is a perspective view of a protrusion connecting member according to another embodiment of the present invention, and FIG. 23 is an exploded perspective view of FIG. 22. 24 and 25 are exploded perspective views of the reinforcing bars according to another embodiment of the present invention.

The protruding connection member 1000 according to the present embodiment includes a rectangular box-shaped body part 1100 having a space part 1100a therein and a reinforcing fixing part 1200 provided in the body part 1100. can do. The reinforcing fixing part 1200 may be inserted into the other surface from one surface of the body portion 1200 to pass through the space portion 1100a of the body portion 1100.

One surface and the other surface facing each other in the body portion 1200 is provided with a through hole 1500 in a position corresponding to each other, the reinforcing fixing portion 1200 is inserted from one surface of the body portion 1200 protrudes to the other surface It may be provided so as to pass through the space portion 1100a of the center of the body portion 1200.

In addition, the reinforcing fixing part 1200 includes at least one nut 1240, the outer surface of the reinforcing fixing part 1200 is provided with one or more threads 1230 spaced apart from each other to be screwed with the nut 1240 ) May be provided.

The rebar fixing part 1200 includes a head part 1210 and an extension part 1220 extending from the head part 1210, and the end of the extension part 1220 passes through the body part 1100. It can be fixed by inserting through (1500). In addition, a screw thread 1230 is formed at the end of the extension part 1220 discharged through the other end of the body portion 1100 and may be coupled by screwing by a separate nut 1240.

Alternatively, the head portion 1210 may be integrally provided with the extension portion 1220 or may be provided separately. When provided separately, the head portion 1210 includes a nut and the extension portion 1220. It can be fastened by screwing.

The outer surface of the reinforcing fixing parts (1200a, 1200b) further includes reinforcing seats (1250, 1260) for fixing the reinforcing bars to the reinforcing fixing parts (1200a, 1200b), the reinforcing seats (1250, 1260) May be provided in a concave shape (1250) or a threaded shape (1260) inward from the outer surface of the reinforcing fixing parts (1200a, 1200b).

The reinforcing bars 1250 and 1260 may guide the positions of the reinforcing bars to be reinforced to the reinforcing fixing parts 1200a and 1200b, and the reinforcing bars may be more firmly fixed to the reinforcing fixing parts 1200a and 1200b.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is indicated by the scope of the following claims rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and the equivalent concept are included in the scope of the present invention. Should be interpreted.

10: concrete pile 20: H section steel
100: protruding connecting member 110: body portion
110a: space department 120: reinforcing bars

Claims (21)

In the CIP wall formed by continuously forming a plurality of concrete piles 10 having H-shaped steels (20, 20a, 20b) extending in the first direction therein,
The concrete pile 10 is provided with an opening 11 to expose a portion of the H-shaped steel (20, 20a, 20b), the protruding connecting member (100, 700) through the opening the H-shaped steel (20, Welded to 20a, 20b),
The protruding connecting members 100 and 700 are body parts 110, 210, 310, 710, 810, 910, and 1100 connected to the H-shaped steels 20, 20a and 20b, and the body parts 110, 210 and 310. A plurality of reinforcing bars 120, 220, 320, 420, 920, 1200 provided to protrude outward from the parts 710, 810, 910, and 1100, and the body parts 110, 210, 310, 710, 810, 910, 1100 includes spaces 110a, 210a, 310a, 1100a in which concrete is stored,
The body parts 110, 210, 310, 710, 810, 910, and 1100 are provided in a rectangular box shape having space parts 110a, 210a, 310a, and 1100a connected to penetrate one surface and the other surface.
The edge of one surface of the body portion 110 is welded to the H-shaped steel (20, 20a, 20b),
The reinforcing fixing parts 120, 220, 320, 420, 920, and 1200 have a diameter smaller than that of the head parts 121 and 421 and the head parts 121 and 421 in the form of rods in the head parts 121 and 421. Extending extensions 122, 422, and 922,
The reinforcing fixing parts (120, 220, 320, 420, 920, 1200) is provided with a plurality of the extension portion 122, 422 on the outer surface of the body portion (110, 210, 310, 710, 810, 910, 1100) End of 922 is welded and connected,
The CIP wall continuously aligns a plurality of concrete piles 10 provided with the H-shaped steels 20, 20a, and 20b, and then fragments a portion of the concrete piles 10 to form an opening 11 and the openings. (11) exposes a portion of the H-beams (20, 20a, 20b),
After welding the protruding connecting members 100 and 700 to the H-shaped steels 20, 20a and 20b, the protruding connecting members 100 and 700 are formed by reinforcing the reinforcing bars 51 and 52 through the protruding connecting members 100 and 700. ,
The concrete pile 10 is formed by pouring concrete using the CIP wall forming apparatus, the CIP wall forming apparatus,
A cylindrical casing 41 having a through hole having a circular cross section therein; And
And a steel guide (42) received inside the casing (41) and fastened to the upper surface of the casing (41).
The steel guide 42 is provided to cover at least a portion of the inner frame 43 and the inner frame 43 of the cross section is rectangular in cross section so that the H-shaped steel (20, 20a, 20b) is inserted therein More than one round frame 44,
The round frame 44 is provided in a form corresponding to the inner surface of the casing 41, the fastening flange 45 is provided on the upper end of the round frame 44 to be engaged with the upper side of the casing 41. Become,
The H-shaped steel 20, 20a, 20b,
A pair of first plates 21 facing each other; And
A first connection bridge 22 vertically connecting the centers of the pair of first plates 21;
Each of the concrete piles 10 is provided with one H-beam 20 therein, the concrete pile 10 is the first plate 21 of the H-beams 20 provided in the same direction Aligned to face each other, and the opening 11 is provided to have a size corresponding to a cross section of the body parts 110, 210, 310, 710, 810, 910, and 1100 so that the first portion of the H-shaped steel 20 is formed. Expose the plate 21,
The protruding connecting members 100 and 700 are provided at a height smaller than that of the H-beams 20 and are coupled to the first plate 21 of the H-beams 20 perpendicular to the first direction.
The protruding connecting members 100 and 700 provided in the neighboring H-beams 20 are provided at positions facing each other so that the protruding connecting members 100 and 700 adjacent to each other are connected by reinforcing bars 51 and 52. Letting CIP walls. delete The method of claim 1,
The body portion 210 is provided in a plate shape having a space portion (210a) therein, one surface of the body portion 210 is welded to the H-shaped steel (20, 20a, 20b),
The reinforcing fixing part 220 is provided so as to protrude outward from the other surface of the opposite surface of one surface of the body portion 210 welded to the H-shaped steel 20 on both sides with the center of the space (210a) in the center CIP wall made. The method of claim 1,
The body portion 310 may include one or more extension plates connecting the pair of first and second main plates 311 and 312 and the first and second main plates 311 and 312 having a cross-sectional shape to each other. 330 and the space portion 310a formed in the first and second main plates 311 and 312 and the extension plate 330 to accommodate concrete therein,
The first and second main plates 311 and 312 are provided to be spaced apart from each other so that the openings face each other so that one end of each of the first and second main plates 311 and 312 may be connected to the H-shaped steel 20. Welded and combined
The extension plate 330 is provided on the first and second main plates 311 and 312, respectively, to connect the first and second main plates 311 and 312 to each other and to be spaced apart from the H-beam 20. Equipped,
The reinforcing bars 320 are provided with the first and second main plates (311, 312) facing each other in a direction opposite to each other. The method of claim 4, wherein
The extension plate 430 is provided in a direction perpendicular to the H-shaped steel 20,
The rebar fixing part 420 includes a head part 421 and an extension part 422 extending in the shape of a rod from the head part 421 to a diameter smaller than the head part 421,
The rebar fixing part 420 is provided with the ends of the extension part 422 welded to the outer surfaces of the first and second main plates 411 and 412, but are connected to the first main plate 411. The head portion (421) of the (420) is provided to face upwards, the head portion 421 of the reinforcing fixing portion (420) connected to the second main plate (412) is provided to face the CIP wall. The method of claim 4, wherein
One end of each of the first and second main plates 511 and 512 is welded to the H-shaped steel 20, and the other end of the first and second main plates 511 and 512 is opposite to the other end of the first and second main plates 511 and 512. Bolting plates 540 and 640 having at least a part interposed therein and having one or more bolt holes 541 and 641 into which bolts are inserted are coupled,
CIP wall connected to a separate channel (channel) or H-shaped steel through the bolt holes (541, 641) provided in the bolting plate (540, 640). The method of claim 6,
The bolting plate 640 is formed in a plate shape and has a support plate 642 having a bolt hole 641 therein and a sliding protrusion protruding to a thickness smaller than the support plate 642 at each of the upper and lower portions of the support plate 642. 643 is provided,
On the other inner surface of each of the first and second main plates 611 and 612, a sliding accommodating portion 613 is concave inward to insert the sliding protrusion 643.
The bolting plate 640 is slidingly inserted and fastened at the other ends of the first and second main plates (611, 612) CIP wall is fixed by welding. The method of claim 1,
The outer surface of the H-shaped steel 20b further includes at least one guide portion 24 provided in a second direction that is a vertical direction of the first direction,
The guide portion (24) is exposed through the opening (11) to the CIP wall to guide the portion where the projecting connecting member 100 is welded. The method of claim 8,
The guide portion 24 is provided to protrude on the outer surface of the H-shaped steel (20b) CIP wall to increase the contact area of the H-shaped steel (20b) and concrete (c). The method of claim 1,
The outer surface of the body portion (710) of the protruding connection member 700 further comprises a sanding layer (701) provided by sanding sandpaper. The method of claim 1,
The body portion 810 is a CIP wall having a plurality of through holes (850, 850a) are provided to pass through the body portion 810, respectively, on the upper and lower surfaces of the body portion (810). The method of claim 11,
The through hole (850a) is a CIP wall is provided with a trapezoidal cross section so that the diameter decreases in the direction from the outer surface to the inner surface of the body portion. The method of claim 1,
CIP having a plurality of protruding ribs 923 protruding vertically from the outer surface of the extension portion 922 on the outer surface of the extension portion 922 so that the reinforcing bars reinforced to the reinforcing fixing portion 920 is stably fixed. Wall. The method of claim 1,
An outer surface of the body portion 910 is provided with a first fastening portion 950 to which the end of the rebar fixing part 920 is fastened, and the first fastening part 950 at the end of the rebar fixing part 920. And a second fastening part 924 fastened to the
The first fastening portion 950 is provided to penetrate inward from the outer surface of the body portion 910 and has a thread on the inner circumference, and the second fastening portion 924 is screwed with the screw thread of the first fastening portion CIP wall comprising a thread provided to. The method of claim 14,
The rebar fixing part 1200 includes one or more nuts 1240, and at least one thread 1230 is provided on the outer surface of the rebar fixing part 1200 and spaced apart from each other to be screwed with the nut 1240. CIP wall to be provided. The method of claim 15,
The reinforcing fixing part (1200) is a CIP wall is provided is inserted into the other surface from one surface of the body portion (1100) to pass through the space portion (1100a) of the body portion (1100). The method of claim 16,
The outer surface of the rebar fixing part further includes reinforcing bar seating parts (1250, 1260) for fixing the reinforcing bar to the rebar fixing part,
The rebar seating portion is provided with a concave shape (1250) or a threaded shape (1260) inward from the outer surface of the reinforcing fixing portion CIP wall. delete The method of claim 1,
The fastening flange 45 is,
A flange portion 45a extending vertically from the upper end of the round frame 44 toward the outside to contact the upper end of the casing 41;
A fastening part 45b extending vertically from the flange part 45a toward the bottom to be rounded to correspond to the outer surface of the casing 41; And
CIP wall consisting of one or more fastening holes (45c) provided to pass through the fastening portion (45b) is fastened by a separate fastening member (1). delete The method of claim 1,
The H-beam 20a further includes a reinforcing member 23 spaced apart from the first connecting bridge 22 to connect the sock end of the pair of first plates 21,
The reinforcing member 23 is a CIP wall is connected to the plate-shaped reinforcing steel plate welded.

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