KR101664668B1 - Structure for connecting earth retaining wall - Google Patents

Abstract

The present invention relates to a bracket comprising: a plurality of brackets each horizontally directly coupled to a vertical H file inside a retaining wall to serve as a pedestal; And a plurality of internal steel beams joined to the upper surface of the bracket at an end surface of the bracket. According to the present invention, it is possible to construct a basement frame without brackets or wales by matching the positions of the vertical H files in the inner steel frame and the earth retaining wall, and to solve the interference in the subsequent process of the belt and the non- . In addition, when the Virendill truss member is used in the CIP structure, it is easy to dispose the vertical reinforcing bars of the underground outer wall because brackets are unnecessary, and the earth pressure is directly transmitted from the Virendill truss member and the Virendill truss member to the slab in CIP.

Description

{Structure for connecting earth retaining wall}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connection structure, and more particularly, to a connection structure of an underground structure earth retaining wall.

Generally, the method of constructing the underground structure of the building can be classified into the square pavement method and the submerged pavement method according to the construction direction.

In the sanding method, a temporary support means such as a strut, a lacquer, an earth anchor, a rock bolt and the like are installed along with the earth retaining wall to complete the underground earthworks to the foundation bottom level in a state in which the earth retaining wall is not collapsed, This is a method of constructing structures sequentially from the lowest floor to the ground while dismantling the temporary supporting means from below.

It is also called top-down construction method. It performs the underground earthworks and works with the construction of the main structure underground, so that the constructed underground structure plays a role of supporting the transverse earth pressure among the earthworks, In the direction opposite to that of the pure perforation method.

Since the positions of the inner steel girder IB and the vertical H file P may not be perpendicular to each other and may not be connected to each other as shown in FIGS. 1 to 5, SP) or a wristband (WL) is required.

That is, as shown in FIG. 3, it is necessary to install a plurality of support posts SP for installing the wale WL. If a plurality of SPs are separately installed, there is a problem that the dimensional fluctuation is serious due to the CIP (C) construction error and the welding amount is increased.

Further, there is a problem that the support SP is provided between the wristband WL and the CIP (C), and the support is poor on the CIP (C) side. In addition, there is a problem that the workability of the underground outer wall vertical steel bar VB is lowered due to interference of the wale WL.

When the wale WL is deformed, the retaining wall WL may be pushed and local buckling may occur at the exposed portion of the inner steel rib IB.

Also, as shown in FIG. 2, the earth pressure can not be directly transmitted to the slab due to the vacant space S during the reverse operation, and is transmitted by the warp of the wale WL. The wale WL becomes the long span, . 4 and FIG. 5 showing the section of the earth wall W3 have the same problem, so repetitive description will be omitted.

In order to solve this problem, Korean Patent Registration No. 1034583 proposes a method of constructing an underground structure through front support of a retaining wall. However, since the H file and the steel structure of the present structure are not orthogonal, ) Is installed and a supporting beam for connecting the supporting beams is added, which increases the amount of the accessory hardware and increases the construction process in the field.

Korean Patent No. 1034583 (May 05, 2011), "A Method of Backward Construction of Underground Structures Through Front Support of Retaining Wall and Formwork for Uneven Surface Used Therefor" Korean Registered Patent No. 0531385 (November 21, 2005), "Underground Structure Construction Method for Continuous Construction of Underground Outer Walls Using Embedded Steel Wristband and Slab Film"

It is an object of the present invention to provide a structure of a basement structure which is directly connected to an earth retaining wall without wales for solving a problem of the prior art,

In order to achieve the above object, according to an embodiment of the present invention, there is provided a direct attachment structure for a non-woven earth retaining wall, comprising: a plurality of brackets each directly horizontally coupled to a vertical H file inside a retaining wall to serve as a pedestal; And a plurality of internal steel bars joined to an upper surface of the bracket.

A pair of outer side beams disposed perpendicularly to the inner side of the inner steel beam and connected to the upper end of the inner steel beam to provide a space in which the underground outer wall vertical steel bars are disposed; And a plurality of inner a-shaped steel members which are joined to each other.

Further, the outer a-shaped beams may be arranged so that the horizontal flanges are respectively directed outward so as to serve as molds.

In addition, the inner a-shaped steel may be provided so as to be relatively slidable in the outer a-shaped steel so that the distance can be adjusted as necessary.

In addition, an inner insertion hole may be further formed in the vertical direction so that the inner A-shaped steel can be inserted when interfering with the vertical reinforcement.

When the earth retaining wall is a CIP (Cast In Place Pile), the inner steel beam further includes an inclined member as a section steel that slopes on both sides so as to abut the end portion of the CIP disposed on both sides of the vertical H pile can do.

Further, a horizontal flange is disposed toward the earth retaining wall to be engaged with concrete on one side of the end portion of the inner steel beam, and the outer steel tube is disposed perpendicularly to the inner steel beam, .

In addition, the outer d-shaped steel may further include a plurality of stud bolts on the web toward the earth retaining wall.

In addition, the support bracket may further include a support bracket coupled to one side of the outer frame to support the outer frame.

According to the nonwounded earth retaining wall direct connection structure according to the embodiment of the present invention,

First, it is possible to construct the underground frame without supporting or wale by matching the position of the vertical H file in the inner steel frame and the retaining wall, and it is possible to solve the interference in the subsequent process of the belt and the non-economical due to the accessory hardware.

Second, the use of the Virendill truss member in the CIP structure minimizes the size and quantity of the bracket, facilitating the placement of the vertical reinforcing bars in the underground wall, reducing the earth pressure from the Virendill truss member in the CIP, It is delivered smoothly.

Third, the Virendill truss member does not need a bracket, and the amount of steel is reduced compared to the wale system, and there is no need to consider the construction error.

Fourth, the outer side a of the bending die member can be arranged so as to face the outside, thereby acting as a formwork.

Fifth, the inner side a of the bendilill truss member is provided to be relatively slidable in the outer side bend, so that the distance in the case of interference with the vertical bend can be adjusted.

Sixth, the inner side of the Virendill truss is formed with an insertion hole in the vertical direction so that it can be inserted when interfering with the vertical reinforcement.

Seventh, in the case of CIP, the internal steel bars may further include the inclined members to enhance the supporting force with the CIPs disposed on both sides of the vertical H-file.

Eighth, when the outer steel sheet and the plurality of stud bolts arranged vertically with the inner steel bar are provided, the concrete can be installed on one side to serve as a wale of the composite structure, thereby minimizing the interference at the time of constructing the underground outer wall, By omitting the truss member, it is possible to reduce the construction period and the construction cost, and the waterway that can be generated in the underground outer wall can be minimized, so that the penetration of groundwater can be reduced.

Ninth, simultaneous casting is possible when slab concrete is paved, and economical design of proper span is possible.

1 is a plan view showing a structure of a conventional underground structure underground structure.
2 is a partially enlarged plan view of the connection structure of the earth retaining wall in the CIP section shown in FIG.
3 is a sectional view of the connection structure of the earth retaining wall in the CIP section shown in FIG.
4 is a partially enlarged plan view of the connection structure of the earth wall partitioning wall shown in FIG.
5 is a cross-sectional view of the connection structure of the earth wall partitioning wall shown in FIG.
FIG. 6 is a plan view showing a direct connection structure of a moundary earth retaining wall according to an embodiment of the present invention.
7 is a partially enlarged plan view of the direct connection structure of the non-woven earthen wall of the CIP section shown in Fig.
FIG. 8 is a cross-sectional view of the direct connection structure of a non-woven mattress wall according to the CIP section shown in FIG.
FIG. 9 is a perspective view showing another embodiment of the Virendill truss member shown in FIG. 8. FIG.
10 is a partially enlarged plan view showing another embodiment of the direct connection structure of a non-woven earth retaining wall in the CIP section shown in FIG.
11 is a partially enlarged plan view of a steel bridge of a direct connection structure of a non-wedge earth retaining wall according to another embodiment of the present invention.
12 is an AA cross-sectional view of the CIP section-free wedge sheeting wall direct connection structure shown in FIG.
FIG. 13 is a cross-sectional view of the BB of the direct connection structure of a non-woven earthen wall according to the CIP section shown in FIG.
FIG. 14 is a partially enlarged plan view of a steel bridge of a direct connection structure of a non-woven earth retaining wall according to another embodiment of the present invention.
15 is a CC sectional view of the direct connection structure of a non-woven earth retaining wall in the CIP section shown in FIG.
16 is a DD sectional view of the direct connection structure of a non-woven earthen wall according to the CIP section shown in Fig.
17 is a partially enlarged plan view of a direct connection structure of a toe-wall section nonwovensy earth retaining wall according to an embodiment of the present invention.
18 is a cross-sectional view of the direct connection structure of a toe-wall section non-wedge earth retaining wall shown in Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Note that, in the drawings, the same components are denoted by the same reference symbols as possible. Further, the detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, some of the components in the drawings are exaggerated, omitted, or schematically illustrated.

7 is a partially enlarged plan view of the direct connection structure of the non-woven earth retaining wall shown in Fig. 6, and Fig. 8 is an enlarged plan view of the non-wired earth retaining wall connecting structure of Fig. FIG. 9 is a perspective view showing another embodiment of the Virendill truss member shown in FIG. 8, and FIG. 10 is a perspective view showing the direct connection structure of the CIP section nonwovensy earth retaining wall shown in FIG. And Fig.

Referring to FIGS. 6 to 8, the nonwounded earth retaining wall direct connection structure includes a plurality of brackets 100 and a plurality of internal steel bars 200.

The plurality of brackets 100 are coupled horizontally by direct welding or the like to the vertical H files P in the earth retaining wall W1 to serve as pedestals. The bracket 100 can be used by slicing the H-shaped steel as shown in FIG. FIGS. 7 and 8 show a bracket 100 and a plurality of internal steel bars 200 in the CIP (C) section.

It is possible to construct the underground floor frame without bracket or wale by matching the position of the vertical H file (P) in the inner steel bar 200 and the interior of the earth retaining wall W1.

The plurality of inner steel bars 200 are joined to the upper surface of the bracket 100 by welding or the like.

Here, the underground outer wall W2 may include a vierendeel truss member 300 coupled to an upper end of the inner steel bar 200 to provide a space in which the vertical steel bars VB are disposed.

The reinforcing member 300 includes a pair of outer a-shaped beams 310 arranged perpendicularly to the inner steel beam 200 and a plurality of inner beamed beams 320 coupled vertically between the outer a- Respectively.

At this time, the outer a-shaped steel pipe 310 may be disposed outside the horizontal flange 311 so as to serve as a mold.

As shown in FIG. 9, the inner side steel pipe 320 may be provided to be relatively slidable in the outer side steel pipe 310 so as to adjust the distance when interfering with the vertical steel pipe VB, if necessary. To this end, a sliding protrusion 321 may be formed on the inner side section 320 and a sliding hole 311 may be formed on the outer side section 310. The positions and the number of the sliding protrusions 321 and the sliding holes 311 can be changed according to need, and only a part of the inner side walls 320 can be slidable.

In addition, as shown in FIG. 10, the insertion hole 322 may be formed in the vertical direction so that the inner side portion 320 can be inserted when interfering with the vertical reinforcement VB. The number and position of the insertion holes 322 are correspondingly changed according to the arrangement of the vertical reinforcing bars VB.

It is possible to minimize the size and the quantity of the brackets and to arrange the vertical reinforcing bars VB of the underground outer wall W2 in a simple manner. In the CIP (C), the reinforcing members 300, The earth pressure is directly and smoothly transmitted to the slab from the Ville derrick truss member 300.

11 to 13 illustrate a direct attachment structure of a non-woven earthen wall according to another embodiment of the present invention.

FIG. 11 is a partially enlarged plan view of a hypothetical steel bridge of a direct connection structure of a CIP section free wale wall according to another embodiment of the present invention, FIG. 12 is an AA sectional view of a direct connection structure of a CIP section free wit 13 is a cross-sectional view taken along line BB of the direct connection structure of a non-woven mattress wall according to the CIP section shown in FIG.

11 to 13, the plurality of brackets 100 are also horizontally coupled to the vertical H files P in the earth retaining wall W1 by direct welding or the like to serve as pedestals. 11 and 12 show a bracket 100, a main internal steel bridge 200 and a hypothetical internal steel bridge 200 'in a CIP (C) section.

11 and 12, when the earth retaining wall W1 is CIP (C), the inner steel beam 200 is formed as an end portion of the CIP (C) disposed on both sides of the vertical H- And an inclined member 210 which is slidably joined to the both sides by welding or the like.

It is possible to strengthen the supporting force with the CIP (C) disposed on both sides of the vertical H file (P) including the inclined member (210). Of course, the end of the inclined member 210 may be provided with a pressure plate 211 or the like.

14 to 16 illustrate a direct attachment structure of a non-woven earth retaining wall according to another embodiment of the present invention.

FIG. 14 is a partially enlarged plan view of a hypothetical steel bridge of a direct connection structure of a non-wired earth retaining wall according to another embodiment of the present invention, FIG. 15 is a CC sectional view of a direct connection structure of a non-wired earth retaining wall shown in FIG. 14, 16 is a DD sectional view of the direct connection structure of a non-woven earthen wall according to the CIP section shown in Fig.

14 to 16, a plurality of brackets 100 are directly coupled to the vertical H files P in the interior of the retaining wall W1 horizontally by welding or the like to serve as pedestals. FIGS. 14 and 15 show a bracket 100, a main internal steel bridge 200, and a hypothetical internal steel bridge 200 'in a CIP (C) section.

A horizontal flange 410 is disposed toward the earth retaining wall W1 to serve as a wale band and an outer flange 410 disposed perpendicularly to the inner steel beam 200, 400).

As shown in FIG. 15, a concrete CC is installed on one side of the outer d-shaped section 400 to serve as a wedge as a composite structure.

The outer d-shaped section 400 may have a plurality of stud bolts 430 toward the retaining wall W1 on the web 420. The outer d-shaped section 400 may have a plurality of stud bolts 430, (Not shown).

17 is a partially enlarged plan view of a direct connection structure of a toe-wall section non-wedge earth retaining wall according to an embodiment of the present invention, and FIG. 18 is a sectional view of the direct connection structure of a toe-wall section non-wedge earth retaining wall shown in FIG.

17 and 18, a plurality of brackets 100 are directly coupled horizontally with the vertical H-files P in the earth retaining wall W1 to serve as pedestals in the earth wall W3. 17 and 18 show a bracket 100, a main inner steel bar 200 and a hypothetical inner steel bar 200 'provided in the zone W3. The hypothetical inner steel beam 200 'refers to an inner steel beam installed adjacently between the inner steel beam 200.

Even in the earth wall W3, the position of the vertical H file P in the inner steel bar 200 and the inner wall of the earth retaining wall W1 can be matched so that a basement frame can be constructed without a bracket or a wale. The plurality of inner steel bars 200 are joined to the upper surface of the bracket 100 by welding or the like.

Thus, according to the present invention, it is possible to construct the underground floor frame without the support or wale by matching the positions of the vertical H files P inside the earth retaining wall with the inner steel bar 200. In addition, simultaneous pouring is possible when slab concrete is installed, and economical design of appropriate span is possible.

It should be noted that the embodiments of the present invention disclosed in the present specification and drawings are only illustrative of the present invention in order to facilitate the understanding of the present invention and are not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention are possible in addition to the embodiments disclosed herein.

100 ... bracket 200 ... internal steel frame
300 ... Birendill truss member 400 ... Outer section steel

Claims (9)

A plurality of brackets each horizontally directly coupled to the vertical H file in the retaining wall to serve as a pedestal; And
And a plurality of internal steel bars joined to an upper surface of the bracket,
And an upper wall coupled to the upper end of the inner steel bar to provide a space in which the vertical outer wall vertical reinforcement is disposed,
A pair of outer a-shaped beams disposed perpendicularly to the inner steel beam,
Further comprising a vierendeel truss member having a plurality of innershapes that vertically engage between the outer a-shaped beams,
The inner a-
And a slidable relative structure of the outer a-shaped steel so as to adjust the distance as necessary. delete The method according to claim 1,
The outer a-
Wherein a horizontal flange is disposed toward the outside so as to serve as a dock. delete The method according to claim 1,
The inner a-
Wherein an insertion hole is further formed in the vertical direction so as to allow insertion of the vertical reinforcement when interference with the vertical reinforcement occurs. The method according to claim 1,
When the earth retaining wall is a CIP (Cast In Place Pile)
The internal steel frame may include:
The structure of claim 1, further comprising a tapered member that slopes on both sides so as to abut the ends of the CIPs disposed on both sides of the vertical H-file. The method according to claim 1,
And is coupled to an upper end of the internal steel beam,
Further comprising outer flanks disposed perpendicularly to the inner steel bars and horizontally flanges disposed to face the earth retaining walls so as to serve as wales by placing concrete on one side of the outer frame. The method of claim 7,
The outer d-
Wherein the web is further provided with a plurality of stud bolts toward the earth retaining wall body. The method of claim 8,
And a support bracket coupled to one side of the outer c-shaped steel to support the outer c-shaped steel.

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