KR20130123673A

KR20130123673A - H-beam structure

Info

Publication number: KR20130123673A
Application number: KR1020120046974A
Authority: KR
Inventors: 윤용수
Original assignee: 주식회사 장평건설
Priority date: 2012-05-03
Filing date: 2012-05-03
Publication date: 2013-11-13

Abstract

According to the present invention, a release material of a soft material is attached to the outside of the H-beam, so that the recovery of the H-beam is easy, and a protective plate for protecting the release material is detachably coupled to the outside of the release material, thereby drawing out the H-beam applied to the CIP method. The present invention relates to an H beam structure capable of easily recovering and preventing damage to a release material.
The present invention relates to an H-beam formed into a wall column with cement mortar inserted into the pile hole and poured into the pile hole, an adhesive applied to the outside of the H beam, and attached to the outside of the H beam by an adhesive and made of a foamed resin material. It consists of the release material formed.

Description

H-beam structure {H-BEAM STRUCTURE}

The present invention relates to a H-beam structure, in particular, the structure is improved so that the release work of the compression styrofoam material is attached to the outer surface of the H-beam to be applied to the CIP method, which is one of the columnar wall method to facilitate the recovery operation during drawing It relates to a H-beam structure.

In general, in order to construct new structures such as buildings, temporary walls must be constructed for the safety of earth and earth collapse and surrounding buildings in advance when excavating the ground.

In the city center, the continuous wall method is mainly used, and the continuous wall method increases the rigidity of the wall by inserting H beams into the continuous wall.

The continuous wall construction method inserts core materials such as reinforcing bar or H beam into some or all of the pile holes pre-excavated in the ground, and then cement cement mortar in the pile holes to construct the wall of the pile. Cement mortar is cast without inserting beams to cure concrete columns.

In this way, the wall of the mud walls constructed by continuously curing the concrete columns is embedded with H-beams in part or all of the concrete columns, thereby reinforcing the strength to prevent the collapse of the ground more completely.

However, the continuous wall construction method as described above causes waste of resources because expensive H-beams are buried in a concrete wall column.

In view of this, conventionally, there is a method of drawing using mechanical force (Korean Utility Model Registration No. 20-283374, Korean Utility Model Registration 1995-33391). By applying or attaching a lubricant, which is a lubricious substance, on the surface, the cement mixture reduces the binding force (friction force) acting on the steel and draws out the H-beam (Korean Patent Nos. 2003-32283 and 2004-72339). have.

While the conventional methods have the advantage of reusing expensive H beams, in the case of the former, the extraction time of H beams is excessively excessive, which increases the cost, and damages the H beams and concrete, which are steels. The latter approach is preferred because it results.

However, the method of applying the lubricant to the outer circumferential surface of the H-beam in the latter manner, there is a fear that the film is damaged due to the friction between the H-beam and the cement mixture may not function properly.

As a result, the H-beam applied to the conventional heating wall method (CIP method) not only takes a long time during the recovery operation, but also a cement mixture adheres to the surface of the H-beam, which takes considerable time to remove. There is this.

The present invention was made in view of the above-mentioned problems, and an object thereof is to provide an H beam structure having an improved structure to enable smooth recovery of H beams applied to the C.I.P method.

Another object of the present invention is to provide an H-beam structure having an improved structure to prevent damage to the release material attached to the outer circumferential surface of the H-beam and to facilitate recovery.

The present invention for achieving the above object is provided with an H-beam structure that is recovered into the pile hole after being formed into a wall pillar as the cement mortar is filled, and then recovered by the drawing operation,

It is attached by an adhesive applied to the outer surface of the H-beam, characterized in that provided with a release material formed of a foamed resin material.

The outer side of the release member is detachably coupled via a coupling means and further provided with a protective plate made of a hard material to prevent damage to the outer member.

The coupling means has a plurality of coupling grooves are formed in the longitudinal direction on the outer side of the release member, a coupling protrusion is formed in the coupling groove on the inner surface of the protective plate, the protective plate is slidingly coupled to the outside of the release material. .

A plurality of receiving grooves filled with the cement mortar are formed on the outer surface of the protective plate.

First, since the release material of the compressed styrofoam material is bonded to the outer surface of the H-beam that is applied to the CIP method, the release material is partially damaged by external pressure during the drawing recovery operation of the H-beam or remains in the pile hole by being adhered to cement mortar. As it is possible to reduce the friction between the cement mortar and the H-beam, it is possible to easily recover the H-beam from the inside of the pile hole has the effect of improving the recovery workability.

Second, since the protection plate for protecting the release material is coupled to the outside of the release material, it is possible to recycle the release material by preventing damage to the release material during recovery of H Beam, and also to prevent the residue of the release material from remaining in the pile hole. Has the advantage.

Third, since the coupling groove is formed on the outer surface of the release material and the engaging projection is formed on the inner surface of the protection plate, the coupling and separation of the release material and the protection plate is easily performed in the vertical sliding manner.

Fourth, since a plurality of receiving grooves are formed on the outer surface of the protective plate, there is an advantage that the separation of the release material and the protective plate is simplified.

1 is an exploded perspective view showing a first embodiment of the H-beam structure according to the present invention.
Figure 2 is a cross-sectional view of the coupled state of FIG.
Figure 3 is a use state showing a state that the H-beam of the first embodiment of the present invention enters the pile hole.
Figure 4 is a plan sectional view showing a state in which the h-beam structure of the present invention is formed into a wall pillar by pouring gravel or cement mortar after being inserted into the pile hole.
5 is a perspective view showing a state in which the H-beam and the release material of the present invention is drawn after the wall is formed, Figure 6 is a perspective view showing a state in which the filling material is filled in the space where the H-beam and the release material is drawn.
Figure 7 is an exploded perspective view showing a second embodiment of the H-beam structure according to the present invention.
8 is a sectional view of the coupling state of Fig. 7;
Figure 9 is a perspective view showing a coupling process of the protective plate and the release material of the present invention.
10 is a plan view showing a state in which the H-beam structure corresponding to the second embodiment of the present invention is inserted into a pile hole and cement mortar is formed to form a wall pillar.
11 is a cross-sectional view showing a separation process of the protective plate and the release material of the present invention.
12A is a perspective view showing a state in which the H-beam and the release material are drawn out of the pile hole according to the second embodiment of the present invention, and FIGS. 12B and 12C are perspective views sequentially illustrating a recovery process of the protective plate.
13 is an exploded perspective view showing a third embodiment of the H-beam structure according to the present invention.
14 is a cross-sectional view showing a separation process of the protective plate and the release member of the third embodiment of the present invention.

According to the present invention, the release material of the foamed resin material is attached to the outside of the H-beam, so that the recovery of the H-beam is easy, and a protective plate for protecting the release material is detachably coupled to the outside of the release material, thereby drawing out the H-beam applied to the CIP method. And an H beam structure capable of easily recovering and preventing damage to the release material.

The first embodiment of the H-beam structure according to the present invention will be described with reference to FIGS. 1 to 6, the wall pillar with the cement mortar 30 is inserted into the pile hole 10 and poured into the pile hole 10. The H beam 100 is formed to be, the adhesive 50 is applied to the outside of the H beam 100, the adhesive 50 is attached to the outside of the H beam 100 and the outside of the H beam 100 Consists of a release material 200 formed of a foamed resin material that can be damaged during the drawing operation.

In more detail, the release member 200 is a material in consideration of adhesion with the adhesive agent 50, for example, a compression styrofoam material may be adopted.

The H beam 100 is a known H beam composed of both flanges 140 and 160 and the web 120, and the release member 200 may be coupled to one side or both sides of the web 120 of the H beam 100.

In addition, the release member 200 may be coupled to one side or both outer surfaces of the flanges 140 and 160 on both sides.

The release member 200 may be damaged by friction with the cement mortar 30 during the recovery operation of the H beam 100.

7 to 12 show a second embodiment of the present invention.

The second embodiment of the present invention is further provided with a protective plate 300 of a hard material which is detachably coupled to the outside of the release member 200 by a coupling means to the above-described component and prevents damage of the release member 200. It is.

The protection plate 300 is preferably made of a different type of hard material different from the release material 200 in consideration of the strength to prevent damage to the release material 200. For example, the protection plate 300 may adopt one of synthetic resin, wood, and metal.

Coupling means for coupling the release member 200 and the protective plate 300 is formed with a plurality of rows of coupling grooves 210 in the longitudinal direction on the outer surface of the release member 200, the protective plate which is in surface contact with the outer surface of the release material (200) The coupling protrusion 310 to be fitted to the coupling groove 210 on the inner side of the 300 is formed to protrude in the longitudinal direction.

On the contrary, protrusions may be formed on the outer surface of the release member 200, and grooves may be formed on the inner surface of the protective plate 300.

Because of this, the release member 200 and the protective plate 300 is detachably coupled in a sliding manner so that the coupling groove 210 and the coupling protrusion 310 are fitted.

Coupling groove 210 is preferably formed in a narrower form of the width of the inlet than the width of the inner peripheral surface in order to prevent the outer separation of the engaging projection (310).

At this time, the protection plate 300 is prevented from being separated by the fitting coupling force of the coupling groove 210 and the coupling protrusion 310, and has a coupling structure that can be separated from the release member 200 when the release member 200 moves upward.

That is, since the release member 200 and the protective plate 300 have a greater adhesive force between the release member 200 and the H beam 100 by the adhesive agent 50 than the bonding force due to friction, the protective plate during the drawing operation of the H beam 100. 300 has a structure in which only the release material 200 and the H beam 100 are drawn out of the pile hole 10 while remaining in the pile hole 10.

According to the first embodiment of the H-beam structure according to the present invention, after the adhesive 50 is applied to the outer surface of the H-beam 100, the release member 200 may be connected to the H-beam 100 by the adhesive 50. Attach to the outer side.

Subsequently, the H beam 100 to which the release member 200 is bonded is entered into the pile hole 10 drilled using an auger or earth drill, and then around the H beam 100 entered into the pile hole 10. Gravel 20, cement mortar 30 is poured to form a wall pillar.

These wall pillars are inserted into the H-beam 100 or the core of the reinforcing bar in the pile hole 10 continuously excavated at regular intervals to form a main heating wall.

Subsequently, when the drawing operation is performed to recover the H beam 100 again, the cement mortar 30 and the H beam 100 are easily separated due to the structural characteristics of the release material 200.

That is, when pressure is transferred to the release material 200 attached to the outer surface of the H beam 100 when the drawing of the H beam 100 is carried out, the release material 200 is damaged or the release material 200 is removed from the H beam 100. As the separation occurs, a gap is generated between the cement mortar 30 and the H beam 100, which reduces the frictional force between the H beam 100 and the cement mortar 30, thereby facilitating recovery of the H beam 100. Is done.

At this time, the release material 200, which is a compressed styrofoam material, is partially damaged by frictional force with the cement mortar 30 or the whole is bonded to the cement mortar 30 during the drawing-back operation of the H beam 100. ) And the damaged residue remains in the pile hole 10 may reduce the strength of the wall pillar.

In addition, the release member 200 may be separated from the H beam 100 when the adhesive friction force with the cement mortar 30 is greater than the adhesion force with the H beam 100.

Another embodiment of the present invention for solving this problem, as described above has a structure in which the protective plate 300 is coupled to the outside of the release member 200.

The coupling process of the release member 200 and the protective plate 300 is to slide the protective plate 300 vertically downward from the upper side of the release member 200, the protective plate 300 in the coupling groove 210 formed on the outer surface of the release member 200 The coupling protrusion 310 has a coupling structure that is fitted while sliding.

When the coupling process is completed, the release plate 200 on the outside of the H-beam 100 has an assembly structure in which the protective plate 300 is coupled to the outside of the release material 200 in a state in which the release member 200 is bonded through the adhesive 50.

Thereafter, after the assembly inserts the H-beam 100 structure into the pile hole 10, the gravel 20 is charged and the cement mortar 30 is poured to form a wall pillar.

Subsequently, the operation of drawing and recovering the H beam 100 again includes lifting the H beam 100 by using a crane or the like to remove the release material 200 and the H beam 100 from the protection plate 300. The protective plate 300 drawn out and separated above is left in the pile hole 10 by the adhesive force of the cement mortar 30.

The separation process of the H beam 100 and the protective plate 300 to which the release member 200 is bonded is slid vertically upwardly from the inner surface of the protective plate 300 during the drawing operation of the H beam 100. By doing so, it has a separation process to release by releasing the coupling state of the coupling groove 210 and the coupling protrusion 310.

Thereafter, the hollow beam portion 12 is generated in the pile hole 10 from which the H beam 100 is recovered, and the protective plate 300 is filled with the filling plate such as non-condensed concrete in the space portion 12. 10) filling the remaining space in the state, or after the recovery of the protective plate 300 may be performed to fill the empty space of the pile hole (10).

The recovery operation of the protection plate 300 is separated from the cement mortar 30 by pushing the protection plate 300 toward the space portion 12 of the pile hole 10 generated after the H-beam 100 is recovered, and then the pile hole ( It can be recovered by lifting to the upper side of 10).

13 and 14 are views showing a third embodiment of the present invention, which has the same components as those of the second embodiment, but is accommodated in which cement mortar 30 is filled on the outer surface of the protective plate 300. A plurality of grooves 320 are formed.

That is, the cement mortar 30 is hardened by the cement mortar 30 is introduced into the receiving groove 320 during the pouring process.

Due to this, the cement mortar 30 hardened by being introduced into the receiving groove 320 prevents the protection plate 300 from being vertically drawn out together with the release material 200 during the separation operation of the release material 200 and the protection plate 300. The protective plate 300 and the release material 200 has a function to facilitate the separation.

Thereafter, as described above, the space 12 of the pile hole 10 is filled with a known filling material in the state in which the protective plate 300 remains in the pile hole 10, or after the protective plate 300 is recovered, the portion is filled. Can be.

The operation of recovering the protection plate 300 is performed by pushing the protection plate 300 to the space portion 12 generated after the H-beam 100 is drawn out to release the coupling with the cement mortar 30, and then the equipment such as a crane. It can be withdrawn to the outside of the pile hole 10 to recover.

The present invention described as described above is to bond the release member 200 to the outer surface of the H beam (100), which is a core material in the CIP method, one of the columnar wall method, damage of the release material 200 or the H beam 100 and Since the frictional force between the cement mortar 30 and the H beam 100 is reduced due to the gap generated due to the separation, the H beam 100 may be easily drawn out and recovered in the pile hole 10.

In addition, since the protective plate 300 for protecting the release member 200 is coupled to the outside of the release member 200 in the second and third embodiments of the present invention, the release material 200 may be removed during the recovery operation of the H beam 100. Not only can the recycled release material 200 be recycled by preventing damage, but the residual material of the release material 200 can be prevented from remaining in the pile hole 10.

Description of the Related Art [0002]
10: file ball 12: space part
20: gravel 30: cement mortar
50: adhesive 100: H beam
120: web 140, 160: both sides flange
200: release member 210: coupling groove
300: protective plate 310: engaging projection
320: receiving home

Claims

In the H-beam structure which enters into the pile hole 10 and is formed as a wall pillar as the cement mortar 30 is filled, and then recovered again by a drawing operation,
H beam structure, characterized in that it is attached to the outer surface of the H-beam 100 by the adhesive 50, the release material 200 formed of a foamed resin material.

The method according to claim 1,
H beam structure, characterized in that it further comprises a protective plate 300 made of a hard material to be detachably coupled to the outside of the release member 200 via a coupling means and to prevent damage to the outer member.

The method according to claim 2,
The coupling means has a plurality of coupling grooves 210 are formed in the longitudinal direction on the outer side of the release member 200, the coupling protrusion 310 is fitted into the coupling groove 210 on the inner surface of the protective plate 300. Is formed,
H beam structure, characterized in that the protective plate 300 is slidingly coupled to the outside of the release material (200).

The method according to claim 2 or 3,
H beam structure, characterized in that a plurality of receiving grooves 320 are formed on the outer surface of the protective plate 300 is filled with the cement mortar (30).