KR20180082374A - Pre assemble pc composite mold and method for consructing concrete structure using this same - Google Patents

Abstract

The present invention relates to a pre-assembled PC composite mold and a method of constructing a concrete structure using the pre-cast concrete. The combination of pre-cast concrete and field installation shortens the on-site air and the rigid structure is constructed through the synthesis of the bottom portion and the wall portion. It is intended to prevent water from penetrating through the concrete.
The pre-assembled PC composite mold according to the present invention comprises: a precast concrete chain half PC wall body (10) in which a concrete reinforced with a concrete placed on the outside and a reinforcing reinforcing bar to be combined are placed; (20) which is assembled to form a space for installation with the anti-PC wall, is transported to a construction site, and is used independently by the anti-PC wall and the current use form, and the anti-PC wall is used inside (11) formed by placing reinforcing bars and made by casting of concrete, a binding steel reinforced on the outside of the main body, and a part of the index reinforcement grooves formed on the inner surface corresponding to the inside of both sides of the main body A covering thickness control member (14) fixed to the main body and controlling the covering thickness of the binding steel bar, a pneumatic pressure supporting part (15) protruding from the main body, A communicating part 16 communicating with both sides of the main body by the footing part, and a form receiving part 18 protruding from the main body or the footing part and supporting the dummy for casting It should.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a pre-assembly PC composite mold and a method of constructing a concrete structure using the pre-

More particularly, the present invention relates to a method of constructing a concrete structure, and more particularly, to a method of constructing a concrete structure by combining a precast concrete and a site casting to shorten quality and air, The present invention relates to a method of constructing a concrete structure of a pre-assembled PC synthetic mold in which a rigid structure is constructed through synthesis of a bottom portion and a wall portion by a construction method that dramatically shortens the air in the process and improves safety accident and economy.

This section provides background information related to the subject matter of this application and is not necessarily prior art.

 Concrete structures (underground roadway, passage box, retaining wall, wall body, underground parking lot, reservoir, etc.) are constructed by installing molds in the field to create a casting space and cast concrete in this casting space.

However, since the concrete structure is formed through the long period of curing by installing the plywood formwork, dams, formwork, scaffolding, and concrete in the concrete when installing the spotted concrete, it is possible to prevent the occurrence of waste material and the cost increase or fall due to the high- This is a fact that we are seeing the social loss, and the huge cost of maintenance is wasted due to the deterioration in quality due to the absence of skilled workers as well as the construction cost.

In order to solve these problems, a precast concrete construction method that constructs the entire structure at the factory and transports it to the site has been proceeded with the prior patent, and part of it has also been applied in the field.

The precast concrete method has advantages such as quality, air, transportation, installation efficiency, safety accident and waste material generation, but it is applied on the spot due to the difference of design and performance (manufacturing, transportation, steel mold, Therefore, there is a method to compensate for disadvantages such as workability of overhead patent, excessive weight, overdue construction, economical efficiency, and to compensate for disadvantages such as quality deterioration, air, safety accident, Is required.

The present invention is a technology for solving the problems of the preceding construction method of cast-in-place concrete and the precast concrete construction method, and Patent Document 10-1772941 discloses a background art of the present invention.

Conventional anti-PC (field casting and precast composite) technology is economical due to the addition of coupler for reinforcing steel connection because the bottom part is disconnected from the wall part and the surrounding groundwater penetrates along the joint surface of new concrete have. In order to solve this problem, a waterway, a pump, and a water column are installed in the inside of the structure to exclude the influent water, and the water is pumped out after induction drainage, which requires huge maintenance cost and is not a real alternative.

Patent No. 10-1772941

The present invention is to solve the problems derived from the above-mentioned prior patent and field installation by combining the precast concrete and on-site casting to secure air shortening, prevention of safety accidents, suppression of waste material generation, water tightness, The object of the present invention is to provide a method of constructing a concrete structure of a pre-assembled PC synthetic mold which secures watertightness in the composite part of the part and the wall to cut the influent water to reduce the maintenance cost, .

A method of constructing a concrete structure of a pre-assembled PC synthetic mold according to the present invention comprises: a pre-cast concrete chain anti-PC wall in which concrete placed on the outside and a reinforcing steel to be combined are placed; The method of claim 1, further comprising the steps of: a) providing a plurality of reinforcing bars and a plurality of reinforcing bars, An indexing member in which a part of the indexing member is inserted into an indexing member insertion groove formed on the inner surface of the body corresponding to the inside of the both surfaces of the body, A cover thickness control member fixed to the main body and controlling a covering thickness of the binding steel bar; a putting pressure control member protruding from the main body; a footing portion formed at a bottom of the main body; And a form receiving part formed to protrude from the main body or the footing part to support the work casting form, do.

According to the method of constructing the concrete structure of the pre-assembled PC synthetic mold according to the present invention, a half PC wall is manufactured at the factory, the pre-assembled mold is fastened at the bottom, It has the advantage of cost and safety by reducing the process of fastening in comparison with the preceding patent. Compared with the concrete installation method in the field, it has remarkable effects such as scaffolding, high-speed work, It is effective to construct a solid structure through direct construction by directly integrating the part and the wall part, directing the additional charging ratio through the coupler, and installing the exponent material on the inner side of the anti-PC wall, , It prevents groundwater infiltration due to separation of old concrete gaps. It is effective to prevent the ground water bottom reverse drive force to prevent damage to the road structure according to the structure interior moisture.

1 to 8 are views showing a concrete structure construction process of pre-assembled PC composite mold according to the present invention,
Fig. 1 is a production process diagram of a PC synthetic mold. Fig.
Fig. 2 is a view showing a construction process of the base portion. Fig.
3 is a process diagram of installing a PC synthetic mold.
Fig. 4 is a process chart of the lower reinforcing bars. Fig.
Fig. 5 is a view showing the construction process of the bottom portion by the installation of the on-site concrete.
6 is a view showing a construction process of a wall portion by casting a spot.
7 is a view showing a construction process of a slab.
8 is a view showing a box-type concrete structure completed by demolding a presently used mold of a PC synthetic mold.
9 is a sectional view of a half-PC wall applied to a pre-assembled PC synthesis mold according to the present invention.
10 is a view showing an example of an upper slab construction in a concrete structure construction process using a pre-assembled PC composite mold according to the present invention.
11 is a view showing an example in which a communication part of a pre-assembled PC synthesis mold according to the present invention is formed by a reinforcing frame.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The following terms are defined in consideration of the functions of the present invention, and these may be changed according to the intention of the user, the operator, or the like. Therefore, the definition should be based on the contents throughout this specification.

As shown in FIGS. 1 to 8, the method for constructing a concrete structure of a pre-assembled PC synthetic mold according to the present invention comprises the steps of: (1) forming a PC synthetic mold; (2) The lower reinforcing steel reinforcement (FIG. 4), the floor construction (FIG. 5), the wall construction (FIG. 6), the slab construction (FIG.

1. PC composite mold production (see Fig. 1 and Fig. 9).

The PC composite mold 100 consists of a combination of a precast concrete wall 10 and a concrete mold 20 for concrete.

The anti-PC wall 10 includes a main body 11 of a precast concrete having a space for integrally combining the bottom portion and the wall portion of the concrete structure, An indexing member 13 made of an elastic or flexible material provided on the inner surface of the main body 11 (inside of the structure), a plurality of binding members 13 for securing the covering thickness of the inner reinforcing bars of the main body 11, A cover control member 14, and a plurality of put pressure restraints 15.

The main body 11 is a precast reinforced concrete body manufactured at a factory and in which reinforcing bars are laid, and is formed in the form of a plate for forming a wall, and is made of a concrete portion and an inner reinforcing bar.

The inner reinforcing bars are vertically and horizontally arranged in the concrete part, and at least one of the upper and lower parts protrudes to the upper and lower portions of the concrete part and is coupled with the reinforcing bars of the upper slab and the bottom part, whereby the wall part, the upper slab, .

The main body 11 is formed with a communication portion 16 communicating the left and right (the wall portion and the bottom portion) on the bottom portion for the synthesis of the bottom portion and the wall portion.

The main body 11 has interlocking protrusions and grooves formed on both sides in the longitudinal direction, and adjacent ones along the longitudinal direction are interlocked with each other.

The communicating portion 16 is formed by a footing 17.

The communicating portion 16 may be formed by a reinforcement frame having a structure in which both sides communicate with each other and fixed to the inner reinforcing bars of the anti-PC wall 10. The reinforcing frame may have a rectangular frame shape or three sides having one side opened, and may be made of various materials such as steel, synthetic resin and the like.

The footing portion 17 is preferably formed integrally with the main body 11 and is formed as a leg having a predetermined height at the bottom of the main body 11 so as to form the connecting portion 16. The footing portion 17 is formed at a position spaced inwardly from both left and right ends of the main body 11 so that concrete is filled between the footing portions 17 of the half-PC wall 10 adjacent along the longitudinal direction.

The footing portion 17 may be constituted by two or more vertical portions 17a and a fixed portion 17b extending in the lateral direction so as to have an area larger than the thickness of the vertical portion 17a at the bottom of the vertical portion 17a .

The present invention relates to a method of assembling a semi-PC wall 10 and a current dice 20 at a factory and assembling a mold support 18 ).

The form receiving portion 18 is formed integrally with the leg portion 17a of the footing portion 17 toward the current receiving mold 20 to support the current receiving mold 20 and also has an insert nut So that it can be assembled with a bolt to the presently used mold 20.

That is, the presently used mold 20 is supported by a covering control member 14 made of a non-concrete material and a form receiving unit 18 made of a concrete material.

Further, the form receiving portion 18 is not limited to being supported by the placement surface of the current tongue die 20, but may be a groove or a stepped structure that supports the side surface and the bottom surface of the current tongue die 20 together. In the latter case, the form receiving portion 18 aligns the position of the current take-out mold 20, thereby improving the assemblability of the half-PC wall 10 and the current take-up mold 20 at the factory.

The present invention is characterized in that a half-PC wall 10 and a current half-mold 20 are assembled at a factory and transported to a construction site. As shown in the figure, the half-PC wall 10 But it is not formed on both sides of the bottom part, that is, it is formed at four corners (corner), and it also functions to stably support the current form die 20 before it is fixed through bolting or the like.

The binding steel reinforcing bars 12 are composed of a main steel bar 12a and an expansion bar 12b.

The bottom reinforcing bars 12a are formed by bending the bottom composite portion and the slab composite portion, respectively, at the lower portion and the upper portion, respectively, and are fixed to the reinforcing rods.

A part of the axis 12b is buried in the main body 11 and fixed to the cast iron root 12a.

The bottom composite portion of the cast steel reinforcing bars 12a penetrates through the communicating portion 16 of the main body 11 and protrudes to the opposite side of the main body 11 and is bound to the reinforcing bars of the bottom portion or embedded in the concrete at the bottom portion.

The slab composing part protrudes to the upper part of the main body 11 and is bound to the reinforcing bars of the upper slab or embedded in the concrete.

As shown in FIGS. 1 and 6, the exponent 13 prevents groundwater from penetrating the interior of the structure along the inner side of the anti-PC wall 10.

In order to install the index material 13, the main body 11 is provided with an index reinserting groove which opens on the inner surface toward the outside (inside of the structure).

The exponent 13 is installed in the exponent reinforcement groove, one side of which is inserted and fixed in the exponent insertion groove, and the other side of the exponent 13 protrudes from the surface of the main body 11 to block penetration of groundwater.

The coating control member 14 is for adjusting the coating thickness of the binding steel bar 12 and separates the current use barrel 20 from the binding steel bar 12 to secure the coating thickness.

The cover control member 14 is, for example, a reinforcing bar and is formed so as to be in line with the current form 20 and embedded in the main body 11.

Fixation of the cover control member 14 and the current take-up die 20 can be accomplished by fixing the bolt through the current take-out die 20 by a nut on the opposite side, or by bundling the wire.

The covering control member 14 secures the covering thickness by dropping the current take-off form 20 from the binding steel bar 12 and exposes it to the outside when the form 20 is demolded, so that the area contacting the current take- It is desirable to minimize the thickness and also to prevent corrosion by moisture.

The putting pressure restraining part 15 is made of the same concrete as that of the main body 11 and is made at the time of manufacturing the main body 11 to prevent deformation of the main body 11 due to the putting pressure when the field is laid. The inserted pushing portion 15 may be formed by an insert nut and may be assembled with a bolt or a bolt to the current bushing form 20 and may be supported by the face of the current bushing form 20 to support the current bushing form 20 Do.

The production of the anti-PC wall 10 is performed by laying the mold for the anti-PC wall on the floor, placing the inner reinforcement and the reinforcing steel 12, pouring the concrete, curing the mold, 10).

That is, the main body 11 of the anti-PC wall 10 is formed in a straight shape with no protrusion on the side opposite to the side facing the current side mold 20 for manufacturing and transporting the anti-PC wall 10.

All the known products can be used for the presently used mold 20.

The assembling of the half-PC wall 10 and the presently used mold 20 is preferably carried out by a bolt which passes through the reinforcing member of the current mold 20 and the inserted plate and is fastened to the insert nut of the mold receiving portion 18 . At this time, the bolts can be fastened from the saddle through the insert nut by adding saddles to wrap the reinforcement.

2. Construction of foundation (Fig. 2).

After the road surface is cleaned, concrete is put on the floor to construct the foundation 1. The thickness of the base varies depending on the structure.

3. PC synthetic mold installation (Fig. 3).

The PC synthetic mold 100 is installed on the foundation part 1 and equipment such as a crane is installed on one side or more of the lifting hooks of the PC synthetic mold 100 And the PC synthetic mold 100 is lifted and placed on the base portion 1.

The PC composite mold 100 is separated from the semi-PC wall 10 and the presently used mold 20 with a space to be inserted therein and can stand independently due to the width of the footing portion 17 of the semi-PC wall 10. That is, in comparison with the prior art, the present invention is advantageous in that the work is very easy, the work space is secured and the safety of the worker is ensured because the construction material (scaffold, tiller, etc.) for installing the wall and the formwork is not used. Even if it is used, there is a great advantage over the conventional one because only a small number of construction materials are used.

After the PC synthetic mold 10 is set up, the exponent 13 is inserted into the exponent insertion slot.

Since the concrete structure is box-shaped, PC composite mold (100) is installed on both sides.

4. Lower reinforcement (Fig. 4).

A lower reinforcing bar (2) is arranged at an upper portion of the base portion (1) at a constant height. The lower reinforcing bars 2 are arranged along the vertical and horizontal directions and the reinforcing bars 12 of the PC composite mold 100 are fixed to the lower reinforcing bars 2.

5. Floor construction (Fig. 5).

Concrete is put to the position where the lower reinforcing bar 2 is to be embedded, and the bottom part 3 is constructed. In this process, the concrete passes through the communicating portion 16 of the footing portion of the anti-PC wall 10 and is poured into the pouring space between the anti-PC wall 10 and the pouring die 20, The concrete is poured into the pouring space inside the PC composite mold 100 at the same height as the lower side wall portion 4-1.

The PC synthetic mold 100 is connected to the bottom portion 3 through the lower side wall portion 4-1 so that the PC synthetic mold 100 on the left and right sides maintains the installed state more securely.

6. Wall installation (Fig. 6).

Concrete is placed between the lower side wall portion 4-1 and the inside space of the PC composite mold 100 to construct the upper side wall portion 4-2 on the lower side wall portion 4-1, .

7. Upper slab construction (Fig. 7).

The slab 5 is installed above the bottom portion 3 with the left and right wall portions 4 as points.

The method of constructing the slab may be, for example, a process of slab plate installation-upper reinforcement-slab concrete casting (see FIG. 10).

end. Install slab plate

The slab plate 6 is installed on both the left and right half PC walls 10 and the left and right sides of the slab plate 6 are mounted on the left and right half PC walls 10, It is possible to mount it and, of course, fix it with a fixing device.

The slab plate 6 is also used in formwork, the quantity thereof can be freely changed, and the studs can be constructed for the purpose of composing with concrete.

I. Upper Reinforcement.

The upper reinforcing bar 7 is placed on the slab plate 6 and the upper reinforcing bar 7 is joined to the reinforcing bars of the half PC wall 10.

All. Upper slab construction.

Concrete is placed on the slab plate 6 where the PC composite mold 100 and the slab plate 6 are connected to construct the upper slab 5. At this time, the left and right wall portions 4 and the upper slab 5 are integrally formed by integrating the cast iron rope 12a of the PC composite mold 100 into the concrete of the upper slab. That is, the bottom portion 3, (4) and the upper slab (5) are integrally assembled.

8. Deformation of the current shape form (Figure 8)

When the concrete of the upper slab 5 is cured, the movable mold 20 of the PC composite mold 100 is demolded.

Through the above steps, a box-like structure composed of the bottom part 3, the left and right wall parts {the combination of the half-PC wall 100 and the in-situ concrete installation} and the upper slab 5 is completed.

In the present invention, the slab-free structure can be applied through the omission of the upper slab process, or the PC composite mold 100 can be installed only on one side, and the concrete can be installed to construct the retaining wall.

The present invention is characterized in that the half PC wall body 10 has the communicating portion 16 so that the bottom portion 3 and the wall portion 4 are integrally combined.

100: PC synthetic mold,
10: half PC wall, 11: main body
12: bonding steel, 13: index material
14: cloth control member, 15:
16: communicating part, 17: footing part
18: a form receiving part, 20: a current receiving form

Claims (4)

A precast concrete chain PC wall wall in which a reinforced concrete to be combined with the concrete placed on the outside is placed;
And a current docking die assembled to form the docking space with the docking wall. The docking station is transported to the construction site, and is used independently by the docking wall and the docking dock,
The anti-PC wall comprises:
The present invention relates to a reinforced concrete structure having a plate-like main body in which an inner reinforcing steel is laid and a concrete is laid on the inside thereof, a binding steel reinforced on the outside of the main body, A covering thickness control member which is fixed to the main body and controls a covering thickness of the binding steel bar; a putting pressure foot portion protruding from the main body; a footing portion formed at a bottom of the main body; A communicating portion communicating with both sides of the main body by the main body or the footing portion, and a mold receiving portion protruding from the main body or the footing portion to support the mold for casting the scene. The pre-assembled PC composite mold according to claim 1, wherein the connecting portion is formed by a reinforcing frame having a structure in which both sides communicate with each other and fixed to a mold of the half-PC wall or an inner reinforcing bar. The pre-assembled PC composite mold according to claim 1 or 2, wherein the mold receiving portion supports the pouring surface and the bottom surface of the current pouring mold together. In the factory, the inner reinforcing bars and the reinforcing bars are laid on the formwork, and the concrete is laid on the molds to produce the semi-PC walls 10, and the semi-PC walls are laid on the ground so that the reinforcing bars are directed upward. A first step of forming a PC synthetic mold 100 by raising and fixing a current dice 20 on an upper part of the half-PC wall;
A second step of installing the foundation 1 by placing the abandoned concrete on the road surface of the concrete structure construction site;
A third step of setting up the PC synthetic molds on both sides of the base portion and installing an index material 13 along the longitudinal direction on the inner surface of the half PC wall of the PC synthetic mold;
A fourth step of disposing a lower reinforcing bar (2) at a lower portion between the PC synthetic molds, wherein the lower reinforcing bar is absent from a binding steel of the PC synthetic mold through a connecting portion formed in the half PC wall;
A fifth step of installing the bottom part 3 by pouring the concrete up to the lower reinforcing bar;
A sixth step of placing the concrete part in the installation space of the PC synthetic mold to construct the wall part 4;
A seventh step of installing an upper slab (5) on the wall part;
And an eighth step of demolding the presently used mold of the PC synthetic mold after completing the sixth or seventh step, thereby constructing a box-shaped concrete structure,
The fifth step is to place the concrete at a height above the lower reinforcing bar and at a height at which the exponent material is buried, to construct the bottom part, and the concrete passes through the communication part formed in the anti-PC wall, So that the lower wall portion 4-1 is put together,
The sixth step is to construct the wall part 4 by installing the upper side wall part 4-2 by placing the concrete on the upper part of the lower side wall part 4-1 which is a space for inserting the PC synthetic mold A method of constructing a concrete structure of pre - assembled PC synthetic mold.

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