KR101427208B1 - Prefabricated frame with modular concrete form - Google Patents

Abstract

The present invention relates to a prefabricated frame with a modular mold which can remarkably simplify a mold process by directly attaching a modular mold to a prefabricated frame formed by reinforcing rods or reinforcing rods and section steels which are combined with horizontal reinforcing rods. The prefabricated frame with the modular mold according to the present invention comprises: a prefabricated frame for attaching a modular mold which includes a principal member arranged at the edge of a concrete member used as a column or a beam, a plurality of spacers which is connected to be spaced apart from each other at the outside of the principal member and each of which has an elongated hole formed in a plate, and a first form tie which is fixed to the spacer in order to attach the modular mold to the prefabricated frame and has elongated holes formed at both end parts, wherein the elongated hole on one side is connected with an elongated hole of the spacer and the elongated hole on the other side is connected with the frame of the modular mold by a wedge pin; and a modular mold which has a plate connected between the upper and lower parts or between the right and left first form ties and a frame connected to the rear side of the plate, wherein the frame has an elongated hole formed at the corresponding position of the elongated hole on the other side of the first form tie to be connected with the first form tie by a wedge pin.

Description

{Prefabricated frame with modular concrete form}

The present invention is characterized in that a modular formwork is directly attached to a pre-assembled reinforced concrete (PRC) or pre-assembled steel reinforced concrete (PSRC) frame in which reinforcing bars or reinforcing bars and sections are joined by transverse reinforcing bars, The present invention relates to a prefabricated frame having a modular formwork which can be simplified.

Reinforced concrete structure is a structure that uses concrete in the main structure of the building. It assembles the rebar at the construction site, surrounds it with the formwork, pours the concrete inside the formwork, .

The construction cost of the reinforced concrete structure is roughly 1: 1: 1 for rebar: concrete: formwork = 1, but the shape of the form is the largest in terms of construction time and construction difficulty. In other words, the formwork process is the most time-consuming and difficult process in reinforced concrete construction.

If the formwork is erroneously misaligned, the structure may be displaced vertically, horizontally as well as on the plane, and a safety accident may occur in the concrete casting process.

In this way, woodworking is an important process that decisively determines the duration and quality of reinforced concrete work, but it is recognized as a typical 3D work, and the number of specialized woodworking specialists is gradually decreasing.

In general, the conventional formwork of a small-sized member is supported by a temporary beam and a temporary column so that the form plate does not deviate from the position, and a brace is added to prevent inclination.

Recently, system formwork is widely used as a form of large scale member. In the case of the column, the construction of the system form is carried out by assembling a pair of half molds made in the factory in advance in the factory to form a mold of a cross-sectional shape, and then dismantling the concrete after placing the concrete in the mold do.

Meanwhile, the applicant of the present invention has successfully developed PRC (Prefabricated Reinforced Concrete) and PSRC (Prefabricated Steel Reinforced Concrete) columns and beams that preliminarily assembles reinforced concrete or steel-frame reinforced concrete frames from factories to automated facilities .

In the PRC and PSRC columns, the prefabricated frame is assembled by welding or bolting in a steel mill together with a band steel or a stirrup, which is not used for conventional manual laying, and then it is transported like a steel frame So that it can be constructed.

The prefabricated frame has good straightness and can secure vertical and horizontal level only by framing, and can also support the load during construction.

Therefore, unlike ordinary reinforced concrete structures, high quality construction and construction period can be shortened by using PRC and PSRC members. In particular, since the surveying work and the vertical and horizontal work are already completed in the framing stage, it is possible to omit most of the difficult parts of the conventional molding processes.

Therefore, it is only necessary to attach the form depending on the above-mentioned pre-assembled frame. Actually, no concrete method related thereto has been developed yet, so that the potential advantages of the PRC and PSRC pre- And the like.

Also, recently, there is a tendency to pour concrete at one time without resting in a pillar or wall with a height of 10 m or more. In this case, the load to be supported by the form plate at the bottom of the column or the wall reaches 9 ~ 23tf / ㎡ according to the putting speed, but it may be difficult to support the side pressure of concrete by conventional construction alone depending on the column section size.

In order to solve the above-mentioned problems, the present invention provides a pre-assembled reinforced concrete (PRC) member or pre-assembled steel reinforced concrete (PSRC) A prefabricated frame having a modular formwork capable of simply completing the formwork construction by fixing the modular formwork at a distance of the coating thickness from the outer surface of the prefabricated structure by utilizing a characteristic of having rigidity enough to bear the load, .

It is another object of the present invention to provide a prefabricated frame having a modular formwork capable of fixing a modular formwork to a prefabricated structure so as to withstand lateral pressure at the time of pouring concrete.

According to an aspect of the present invention, there is provided a reinforced concrete structure for reinforcing concrete members, the reinforced concrete structure having a plurality of reinforcing members, Wherein a spacer is formed on the plate and a modular die is fixed to each spacer to attach the modular die to the prefabricated frame, wherein a long hole is formed on both end sides so that one long hole is coupled to the long hole of the spacer by a wedge pin, A prefabricated framework for modular formwork attachment comprising a first form tie coupled to a frame of a modular form with a wedge pin; And a frame coupled to the upper and lower portions or between the first and second left and right first tie rods, wherein a frame is formed in the frame at a position corresponding to the other elongated hole of the first form tie, A modular form coupled with a form tie; The present invention provides a prefabricated frame having a modular formwork.

According to another preferred embodiment of the present invention, the present invention is characterized in that the main body is a reinforcing bar, the spacer is joined to the main body by a fixing member, the fixing member is formed of a-shaped steel and the outer side of the a- Wherein the inner side surface is welded to the outer side of the base member, and the spacer is welded to the outer side surface of the fixture.

According to another preferred embodiment of the present invention, there is provided a prefabricated frame having a modular form, characterized in that the main body is a section steel and the spacer is welded to an outer surface of the section steel.

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According to another preferred embodiment of the present invention, there is provided a prefabricated frame having a modular formwork, characterized in that the frame of the opposing modular formwork is interconnected with at least one second form tie to maintain the spacing of the opposing modular formwork do.

The present invention has the following effects.

First, since PRC or PSRC prefabricated frame has rigidity that can support not only self-standing but also construction load by using reinforced concrete or prefabricated frame in which reinforcing bars and section steel are combined with transverse reinforcing bars, It is easy to finish the formwork simply by fixing the modular formwork depending on the frame.

Second, it is possible to secure the verticality and the horizontality of the member while omitting the construction of the hypothetical beam, the suspension column, the bracing and the separator used in the conventional formwork, and the thickness of the cover can be ensured by the spacer.

Third, the reliance on the formwork process in the reinforced concrete structure can be greatly reduced, resulting in cost reduction, shortening of construction time, and high quality construction.

Fourthly, unlike the existing Eurofoam or Aluminum foam, which uses a mold plate having a certain standard size in a vertical direction, a left and a right direction, the present invention uses a modular form exactly matching the entire width of the column or the height of the beam, Rigidity can be ensured.

Fifth, it is possible to demolish the modular formwork after concrete pouring and curing and to recycle it to the same width member, thus it is possible to reduce the construction cost.

Sixth, the modular formwork can be fixed to the prefabricated frame so that the first and second foam ties can be appropriately placed to withstand the side pressure at the time of concrete pouring.

1 is a perspective view showing a modular die used in the present invention.
FIGS. 2 to 7 are perspective views showing a step-by-step construction process of a prefabricated frame having a modular formwork of the present invention for a PRC prefabricated column framing.
8 is a perspective view showing a part of a prefabricated frame having a modular formwork of the present invention for a PRC prefabricated column framing.
9 is a perspective view showing a prefabricated frame having a modular formwork of the present invention for a PSRC ship building column frame.
10 is a perspective view showing a part of a prefabricated frame having a modular formwork of the present invention for a PSRC ship building column frame.
11 is a perspective view showing a prefabricated frame having a modular formwork of the present invention for a PRC pre-assembled beam frame.
12 is a perspective view showing a prefabricated frame having a modular formwork according to the present invention for a PSRC pre-assembled beam frame.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and preferred embodiments.

The prefabricated frame provided with the modular formwork of the present invention is characterized in that the prefabricated framework comprises a prefabricated member (11) arranged at a corner of a member in a prefabricated framework (10) of a concrete member used as a column or a beam, A spacer 14 having a long hole 141 formed in the plate so as to be spaced apart from each other by a predetermined distance and a spacer 14 fixed to each spacer 14 for attaching the modular die 20 to the prefabricated framework 10, One of the elongated holes 151 and 152 is engaged with the elongated hole 141 of the spacer 14 by the wedge pin 16 and the other elongated hole 152 is engaged with the wedge pin 16 by the modular die 20 And a first foam tie (15) joined to the frame (22) of the frame (22); And a frame 22 coupled between the upper and lower portions or between the left and right first foam ties 15 and joined to the rear surface of the plate member 21 and the frame 22 is provided with a first foam tie 15 A modular die 20 having an elongated hole 221 formed at a position corresponding to the other elongated hole 152 of the first form tie 15 and coupled to the first form tie 15 by a wedge pin 16; .

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In the present invention, the prefabricated frame 10 refers to a PRC (Prefabricated Reinforced Concrete) prefabricated frame in which longitudinal reinforcing bars of a concrete column or beam are welded or bolted together with a reinforcing bar or stirrup, Means a PSRC (Prefabricated Steel Reinforced Concrete) prefabricated frame in which the longitudinal steel is replaced by a steel.

7, the prefabricated frame with the modular formwork of the present invention has a structure in which the spacers 14 are joined to the outside of the longitudinal prongs 11 of the posts or beams and the modular formwork The modular dies 20 are attached to the pre-assembled frame 10 by joining both ends of the first foam tie 15 to the upper surfaces of the spacers 14 and the frame 22 of the modular dies 20, .

At this time, the first foam tie 15, the spacer 14, the first foam tie 15 and the frame 22 of the modular mold 20 are bound together by the wedge pin 16, One end of one foam tie 15 and the other end of the spacer 14 and the first foam tie 15 and the frame 22 of the modular mold 20 are provided with long holes 151 and 141 , 152 and 221 are formed.

Hereinafter, the present invention will be described in detail with reference to a step-by-step construction process of a prefabricated frame having a modular formwork of the present invention.

1 is a perspective view showing a modular die 20 used in the present invention.

1, a modular die 20 used in the present invention is composed of a plate member 21 and a frame 22 coupled to a rear surface of the plate member 21. As shown in FIG.

The frame 22 is vertically protruded from the rear surface of the plate 21 along the periphery of the plate 21.

A plurality of recesses for securing the second foam tie 18 may be formed at a predetermined interval on the pair of frames 22 facing at least one of the frames 22, A plurality of slots may be formed for tightening with the vertically adjacent modular dies 20.

A plurality of long holes 221 are formed in the frame 22 at positions corresponding to the other elongated holes 152 of the first form tie 15 so as to penetrate the elongated holes 152 and 221 The wedge pin (16) is engaged to couple the modular dies (20) to the prefabricated framework (10). At this time, the slot 221 of the frame 22 can be formed in the groove so that the second foam tie 18 and the upper and lower or left and right modular dies 20 can be integrally joined.

When the modular formwork 20 is made to have a size corresponding to the entire width of the column or the whole height of the beam, the transverse rigidity of the formwork itself can be secured as compared with the case where a plurality of formwork boards are combined. In addition, the process can be recycled to the same column width or beam height, and the process can be completed simply by joining the modular formwork 20 vertically or horizontally.

In an embodiment of the present invention, the modular formwork may have a height of 600 mm and a frame width of 65 mm. Of course, in addition to the frame 22 positioned around the plate 21, the subframe can also be positioned inside.

FIGS. 2 to 7 are perspective views showing a step-by-step construction process of a prefabricated frame having a modular formwork according to the present invention for a PRC prefabricated column framing, FIG. 8 is a cross- Fig. 3 is a perspective view showing a part of a prefabricated frame.

2 to 7, the spacer 11 is a reinforcing bar, and the spacer 14 is engaged with the spacer 11 by the fixture 17, and the spacer 17 Is welded to the outer side of the fixing member (17), and the inner side of the b-shaped steel is welded to the outer side of the main member (11) so that the outer side of the b- .

That is, since it is difficult to directly connect the spacers 14 to the reinforcing bars 11 disposed at the corners of the columns, the fastening holes 17, which are a-shaped, are welded to the outside of the base 11, The spacer 14 is welded. Of course, the auxiliary reinforcing bars 12 can be positioned between the adjacent reinforcing bars 11, and the reinforcing bars 11 are joined by the transverse reinforcing bars 13.

First, in order to construct a PRC prefabricated frame having a modular form, a PRC prefabricated frame is completed by joining a plurality of longitudinal reinforcing bars to a girder, for example, a column member.

As shown in FIG. 2, a plurality of fasteners 17 are welded to the outside of the main body 11 so as to be spaced apart from each other by a predetermined distance along the longitudinal direction of the main body 11 disposed at the corner of the column, The spacer 14 is welded. At this time, the fixture (17) is connected to the inside of the main section (11) by the inside of the section so that its outer side faces the outside of the column.

The spacer 14 is a steel plate coupled to the fixture 17 and may have a thickness of about 9 mm and a width equal to or 100 mm of the width of the steel pipe 17. The length of the spacer 14 protruding outside the fixture 17 is made equal to the thickness of the concrete covering or the thickness of the reinforcing bar plus the thickness of the concrete covering. Therefore, the coating thickness of the member can be secured by the spacer 14. [

2, the modular dies 20 are not directly coupled to the bottom end of the column, but the web of the d-shaped steel is positioned on each side of the column, as shown in FIG. 2, separately from the process of coupling the spacer 14 to the main body 11. The base portion 1 can be formed in a plan view by arranging the sections and welding the ends of the sections to each other by bolts or welding. In FIG. 2, the plate is welded to the upper and lower flanges of the U-shaped steel and the web so that the three surfaces are in contact with the web at the end of the U-shaped steel, and then the plate coupled to the inner side of the U-shaped steel is bolted to the adjacent steel.

At this time, the upper flange of the d-shaped section constituting the base section 1 is aligned with the upper surface of the spacer 14, and a plate having a plurality of recesses is coupled to the upper surface of the d-shaped section, The upper surface of the groove and the upper surface of the spacer 14 can be made to coincide with each other.

The spacers 14 located above the base portion 1 are welded to the housing 11 at intervals corresponding to the height of the modular dies 20.

As shown in FIG. 3, the first foam tie 15 is positioned so that both ends thereof are located above the spacer 14 and the concave portion of the base portion 1.

At this time, the first foam tie 15 is formed with long holes 151 and 152 at both ends thereof so that the one long hole 151 is engaged with the long hole 141 of the spacer 14 by the wedge pin 16, And the tie 15 is fixed to the spacer 14.

A plurality of second foam ties 18 are arranged such that both ends of the two form tiers constituting the base portion 1 are positioned on the upper portion of each of the mutually facing grooves. The second foam tie 18 may be positioned on the upper surface of the groove of the base portion 1. [

4, the modular formwork 20 is placed on the upper part of the base part 1, and the elongated hole 111 formed in the upper flange of the upper part of the base part 1 at the column edge side, The wedge pin 16 is inserted so as to pass through the elongated hole 221 of the frame 22 located under the other of the frame 22 of the modular die 20 and the other elongated hole 152 of the tie 15.

In other parts except for the corner of the column, the elongated hole 111 formed in the upper flange of the upper section of the base portion 1, the slot formed at the end of the second foam tie 18, The wedge pin 16 is inserted so as to pass through the elongated hole 221 of the lower frame 22.

As a result, the first stage of the modular dies 20 is fixed to the PRC ship assembly frame.

5, the modular dies 20 are fixed to the four sides of the columns to form the modular dies 20, and then the adjacent modular dies 20, as shown in FIG. 5, And an auxiliary tool (19) made of a steel is positioned so that both legs are coupled to the side frame (22). The wedge pin 16 is inserted from one side of the auxiliary tool 19 so as to pass through the slot formed in the auxiliary tool 19 and the slot formed in the side frame 22 of the modular tool 20, Another wedge pin 16 is inserted again through the elongated hole of the projected wedge pin 16 to fix the auxiliary port 19.

In FIG. 8 (a), a perspective view showing a part of the prefabricated frame related to this is shown.

6, the first foam tie 15 is placed on the upper end of the frame 22 of the first end of the modular mold 20 and the upper end of the spacer 14, The first foam tie 15 is fixed by inserting the wedge pin 16 into the elongated hole 141 of the spacer 151 and the spacer 14.

In this case, the upper frame 22 of the modular formwork 20 coincides with the upper face of the spacer 14, and when a plurality of recesses are formed on the upper frame 22 of the modular formwork 20, 14 can be made to coincide with each other.

And interconnects the frame 22 of the opposing modular dice 20 with at least one second foam tie 18. The second foam tie 18 is installed to maintain the space of the opposing modular dies 20 and may also serve as a reinforcing bar or a stirrup, but may additionally include a reinforcing bar or stirrup depending on the result of the structure calculation.

7, the two ends of the modular formwork 20 are placed on the top of the first stage of the modular formwork 20 and the two ends of the modular formwork 20 are formed on the first end of the modular formwork 20, The wedge pin 16 is inserted so as to pass through the slot 221 formed in the second lower frame 22 of the modular die 20 and the other elongated hole 152 of the first foam tie 15 and the modular die 20.

On the other side except for the corner of the column, a slot 221 formed in the first upper frame 22 of the modular die 20, a slot formed in the end of the second foam tie 18, a modular die 20, The wedge pin 16 is inserted so as to pass through the long hole 221 formed in the base plate 22.

As a result, as shown in FIG. 5, the two modular molds 20 are fixed to the PRC prefabricated frame, and as shown in FIG. 5, the side frames 22 of the adjacent modular molds 20 And the vertically adjoining modular dies 20 are secured to each other.

In FIG. 8 (b), a perspective view showing a part of the prefabricated frame is shown.

6 to 7 are repeated. When the upper end of the modular form 20 of the column reaches the lower end height, a first form tie (not shown) is formed on the upper part of the frame 22 of the uppermost modular form 20 15 and the second foam tie 18 are assembled and fixed.

The panel zones are organized in the same manner as in the conventional formwork.

When the work of attaching the modular formwork 20 is completed through the above-described process, the construction of the conventional formwork is omitted, and the vertical, horizontal, and uniform sized cloths, The thickness can be secured. Further, after the concrete pouring and curing, the wedge pin 16 can be removed and the modular formwork 20 and the base part 1 can be demoulded and recycled to the columns of the same width.

FIG. 9 is a perspective view showing a pre-assembled frame having the modular formwork of the present invention for a PSRC pre-assembled column framing, and FIG. 10 is a part of a pre-assembled frame having the modular formwork of the present invention for a PSRC pre- It is a perspective view.

In the PSRC prefabricated frame, the prestressing member (11) is a section steel, and the spacer (14) is welded to the outer surface of the section steel.

The angular configuration and coupling relationship are the same as those described above with respect to the PRC prefabricated column framings of FIGS. 2 to 8, except that a steel beam is used instead of the reinforcing bar as the column support member 11.

10 (a) is a perspective view of a case where the modular dies 20 are installed in one stage, and FIG. 10 (b) is a perspective view of a case where the modular dies 20 are installed in two stages.

FIG. 11 is a perspective view showing a pre-assembled frame having the modular formwork of the present invention for a PRC pre-assembled beam, FIG. 12 is a perspective view showing a pre-assembled frame having the modular formwork of the present invention for a PSRC pre- to be.

In the embodiments of FIGS. 2 to 10, the present invention has been described in connection with the molding of a column.

11 to 12, the gauging module 20 is constructed on three surfaces of the lower surface and the left and right sides, have.

Particularly, in the column, the plurality of spacers 14 are horizontally arranged so as to be spaced apart from each other by a predetermined distance in the vertical direction, and the modular dies 20 are positioned vertically adjacent to each other. However, 14 are provided in the vertical direction and the modular dies 20 are positioned so as to be horizontally adjacent to each other.

Therefore, in the beam form, only the contents relating to the construction of the base part (1) are deleted, and the steps described in FIG. 2 to FIG. 7 are performed in the same manner as the beam- Complete.

1: Base portion 111: Slot
10: Prefabricated frame 11: Presence
12: auxiliary reinforcing steel 13: transverse reinforcing steel
14: spacer 141: long hole
15: first form tie 151, 152: long side
16: wedge pin 17: fastener
18: second form tie 19:
20: Modular die 21: Plate
22: Frame 221: Slot

Claims (5)

(11) disposed at the edge of a member in a pre-assembled frame (10) of a concrete member used as a column or a beam, and a plurality of holes are provided outside the base member (11) Are formed on both sides of the spacers 14 to fix the spacers 14 and the modular dies 20 to the prefabricated framework 10 so that one long side 151 Is joined to the elongated hole 141 of the spacer 14 by a wedge pin 16 and the other elongated hole 152 is engaged with the frame 22 of the modular mold 20 by a wedge pin 16. [ And a tie (15); And
And a frame 22 coupled between the upper and lower portions or between the left and right first foam ties 15 by a plate member 21 and a frame 22 coupled to the rear surface of the plate member 21, A modular die 20 having an elongated hole 221 formed at a position corresponding to the other elongated hole 152 and coupled with the first foam tie 15 by a wedge pin 16; Wherein the modular formwork comprises a plurality of modular dies.
The method according to claim 1,
The spacer (11) is a reinforcing bar, and the spacer (14) is coupled to the spacer (11) by a fixture (17), and the fixture (17) Wherein the inner surface of the a section steel is welded to the outside of the main body (11) and the spacer (14) is welded to the outer surface of the fixture (17).
The method according to claim 1,
Wherein the spacer (11) is a section steel and the spacer (14) is welded to the outer surface of the section steel.
The method according to claim 1,
Characterized in that the frame (22) of the opposing modular dies (20) is interconnected with at least one second foam tie (18) to maintain the spacing of the opposing modular dies (20) Framing. delete

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