KR102448993B1 - Precast Concrete Method Using Fixing Unit - Google Patents

Abstract

The present invention configures a temporary system at the end of a PC beam to secure an integrated performance for cohesion between columns and construction load while realizing a reusable bracket replacement system to ensure horizontal load support safety compared to the existing method, and in the column plinth It relates to a long-life Ramen-jo MDU PC construction method that enables the simultaneous construction of beams, columns, and slabs by using dry and wet bonding in combination, while minimizing the increase in construction costs to secure economic feasibility.
A preferred embodiment of the present invention comprises the steps of (a) installing a PC column; (b) to the PC column, a horizontal fixing member that penetrates horizontally at a certain height of the PC column, a nut for fixing both ends of the penetrating member from the outside of the PC column, and one end is fixed in contact with the outer surface of the PC column by a certain length and a spacer that is spaced apart on both sides by a predetermined distance around the horizontal fixing member and is installed as a fixed pair, an outer fixing member configured to connect the outer end of the spacer, and an outer fixing member and installed by adjusting the distance from the outer end of the spacer Installing a connecting hardware comprising an inner fixing member fixed in parallel with the outer fixing member at a location spaced apart from the inside by a predetermined distance; (c) a pair of vertical supports to the connecting hardware, a plurality of braces connecting the vertical supports, and a support comprising a support configured at the upper end of the vertical support and a stanchion supported by a pair of supports, a vertical support is installed so that it is located between the outer fixing member and the inner fixing member to be bound; (d) installing the PC beam to be supported on the support; (e) installing a PC slab; (f) pouring topping concrete on the PC column, PC beam and PC slab; (g) removing the connecting hardware and support after curing the topping concrete;

Description

The long-life Ramenjo apartment house PC method that can shorten the construction period by using the connecting hardware {Precast Concrete Method Using Fixing Unit}

The present invention relates to a long-life Ramen-jo MDU PC construction method capable of shortening the construction period by using a connecting hardware, and more particularly, in the PC construction method applied to the flat surface of a long-life and rapid construction Ramen-jo MDU, a temporary system at the end of a PC beam In order to secure horizontal load support safety compared to the existing method by implementing a reusable bracket replacement system while securing unifying performance for cohesion between columns and construction load by configuring the It relates to a PC construction method for a long-life Ramenjo apartment house that can shorten construction period by using connecting hardware that enables simultaneous construction of column and slab while minimizing increase in construction cost to secure economic feasibility.

The structural type of existing domestic apartment houses was the shear wall system, but for the purpose of easy remodeling or long-lived housing, the NEEDS of the Ramen-like structural type is high, and the construction period is fast and the dependence on manpower is low due to the nature of downtown construction (less labor- Intensive) PC (Precast Concrete) method was introduced.

In general, since the PC method is individually supported and constructed without bonding between the PC beam and the PC column, the column-beam-slab must be installed sequentially, and a curing period for the bonding material for the connection between the column-beam-slab construction is required. As a result, the air is delayed and the PC beam is also individually supported, so there was a problem in that the risk of collapse increased due to the PC beam member falling off due to the horizontal load.

As the background technology of the present invention, there is Patent Registration No. 1514144 "Precast concrete frame and its construction method" (Patent Document 1). In the background art, 'the lower column (11) composed of the lower column (11), the upper column (12) spaced upward from the lower column (11) and composed of the upper column (12), the spaced lower column (11) and the upper column (12) The reinforcing pillar 13 formed to connect the central section of the cross-section, the upper pillar 12 and the lower pillar 11 are disposed at the cross-sectional corners of the upper pillar 12 and the lower pillar 11 so as to be exposed in the spaced apart space of the upper pillar. (12) and a PC column (10) including a main reinforcing bar (14) that is reinforced in the longitudinal direction of the lower column (11); an angle member 21 that is composed of a vertical surface 211 and a horizontal surface 212 so that the vertical surface 211 is joined to the PC column 10; and a PC beam 30 having an end mounted on the horizontal surface 212 of the angle member 21 and joined to the PC column 10; and a horizontal bolt hole 212h in the horizontal surface 212 of the angle member 21 ) is perforated, and the PC beam 30 is formed so that the protruding jaw 31 inserted into the inside of the PC column 10 protrudes at a part of the end, and the embedding (nut 311) is preliminarily exposed so that one end is exposed at the lower end of the end. It is embedded, and the bolt (B) is inserted through the horizontal bolt hole (212h) of the angle member (21) into the embedding (rotationally inserted into the nut (311) and joined to the PC column (10). suggest

However, in the background art, it is possible to support the gravity load of a general beam type, but there is a problem in that it is difficult to efficiently support the gravity load or the horizontal load of the high load beam.

Patent Registration No. 1514144 "Precast concrete frame and its construction method"

The present invention is to solve the above problems, by configuring a temporary system to secure the performance of cohesion between columns and construction load to reduce the risk of collapse due to PC member dropping compared to the existing method to have structural safety during construction. The purpose of this is to provide a long-lived Ramen-jo MDU PC construction method that enables the simultaneous construction of , beam, column, and slab while minimizing the increase in construction cost.

The present invention comprises the steps of (a) installing a PC column; (b) to the PC column, a horizontal fixing member that penetrates horizontally at a certain height of the PC column, a nut for fixing both ends of the penetrating member from the outside of the PC column, and one end is fixed in contact with the outer surface of the PC column by a certain length and a spacer that is spaced apart on both sides by a predetermined distance around the horizontal fixing member and is installed as a fixed pair, an outer fixing member configured to connect the outer end of the spacer, and an outer fixing member and installed by adjusting the distance from the outer end of the spacer Installing a connecting hardware comprising an inner fixing member fixed in parallel with the outer fixing member at a location spaced apart from the inside by a predetermined distance; (c) a pair of vertical supports to the connecting hardware, a plurality of braces connecting the vertical supports, and a support comprising a support configured at the upper end of the vertical support and a stanchion supported by a pair of supports, a vertical support is installed so as to be bound by being positioned between the outer fixing member and the inner fixing member; (d) installing the PC beam to be supported on the support; (e) installing a PC slab; (f) pouring topping concrete on the PC column, PC beam and PC slab; (g) removing the connecting hardware and support after curing the topping concrete; to provide a long-lived Ramenjo apartment house PC construction method that can shorten the construction period using the connecting hardware, characterized in that it comprises.

In addition, in step (a), the anchor for coupling is installed so as to protrude to the upper part of the ground at the location where the PC pole is constructed, and the PC pole is fixed and installed at the lower end with an installation hole formed by cutting the outer edge It is composed of a coupling plate through which a coupling hole is formed through a hole in the formed part, and an anchor for coupling is formed to pass through the coupling hole of the coupling plate to perform dry bonding. We want to provide a technique.

In addition, in step (a), a plurality of sleeve-type joining members formed by joining a reinforcing bar configured vertically to the upper end of the sleeve and the sleeve are embedded in the PC column so that the lower end of the sleeve is exposed to the lower end of the PC column. A plurality of coupling members are installed on the ground to protrude upward to correspond to the sleeve-type bonding member, and the coupling member is inserted into the sleeve so that the sleeve is filled with mortar to perform wet bonding. We would like to provide a PC construction method for a long-lived Ramen-jo apartment house that can be shortened.

In addition, in step (b), the connecting hardware spacers are spaced apart in the vertical direction by a predetermined distance to provide a long-life Ramen-like apartment house PC construction method capable of shortening the construction period by using the connecting hardware, characterized in that they are additionally installed.

In addition, in step (b), the connecting member is configured to engage the penetrating member by positioning the penetrating member up and down between the vertically spaced spacers, and a vertical binder is configured to vertically penetrate the fixing member and the spacer at the same time. And, to provide a long-life Ramenjo apartment house PC construction method that can shorten the construction period using a connecting hardware, characterized in that both ends of the vertical binder are fastened with nuts.

The long-life Ramenjo MDU PC construction method, which can shorten the construction period by using the connecting hardware of the present invention, constructs a temporary system at the end of the PC beam to secure the cohesion between the columns and the unification performance for the construction load, thereby reducing the risk of collapse due to the PC member falling out compared to the existing method It is possible to have structural safety during construction by reducing It can be used and the temporary system can be reused, so it has a very economical and very useful effect.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the present invention, so the present invention is limited to the matters described in the accompanying drawings It should not be construed as being limited.
1 is a diagram showing the construction sequence of the long-life Ramen-jo apartment house PC construction method that can shorten the construction period by using the connecting hardware of the present invention.
Figure 2 is a view showing the connection hardware and the support installation structure of the present invention.
3 is a view showing an embodiment of the dry bonding structure of the column in the present invention.
4 is a view showing an embodiment of the wet bonding structure of the column in the present invention.
5 is an enlarged view of the connection hardware and the support installation structure in the present invention.
6 is a front view of a support used in the present invention.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the presented embodiments are illustrative for a clear understanding of the present invention, and the present invention is not limited thereto.

Hereinafter, the technical configuration of the present invention will be described in detail according to a preferred embodiment.

1 is a diagram showing the construction sequence of the long-life Ramen-jo apartment house PC construction method that can shorten the construction period by using the connecting hardware of the present invention, and FIG. 2 is a view showing the connecting hardware and the support installation structure of the present invention, FIG. 3 is a view showing an embodiment of the dry bonding structure of the column in the present invention.

In the long-life Ramenjo MDU PC construction method that can shorten the construction period by using the connecting hardware of the present invention, first, as in FIG. 1a , the PC column 10 is installed (a).

The PC column 10 may be installed on the ground by various known methods such as dry bonding or wet bonding, and the core wall may be first installed before the PC column 10 is installed.

In particular, as shown in FIG. 3 of the PC column 10, the anchor 51 for coupling is installed so as to protrude to the upper part of the ground at the construction position of the PC column 10 for dry bonding, and the PC column 10 is The outer edge is cut or blocked out so that the installation hole 11 is formed, and a coupling plate 12 having the same shape as the cross-section of the PC pillar 10 is fixedly installed at the lower end of the PC pillar 10 .

At this time, in the coupling plate 12, the installation hole 11 is formed through the hole so that the coupling hole 121 is formed, so that the coupling anchor 51 penetrates the coupling hole 121 of the coupling plate 12, Dry bonding can be done.

4 is a view showing an embodiment of the wet bonding structure of the column in the present invention.

In addition, in the present invention, it is possible to use both dry and wet bonding in the pillar plinth. For this purpose, as shown in FIG. 4 , the sleeve-type bonding member 60 may be embedded in the PC pillar 10 in advance.

In order to perform such dry and wet bonding in parallel, as shown in FIG. 2 , dry bonding is performed using anchors 51 for bonding at the angled corners of the PC column 10, and sleeve type bonding members are located at other necessary positions. (60) can be used for wet bonding.

The sleeve-type joining member 60 is made by joining the reinforcing bar 63 vertically configured to the upper end of the sleeve 61 and the sleeve 61, and the upper and lower portions of the sleeve 61 have an outlet 612 and The injection hole 611 is formed and buried so as to be exposed to the outer surface of the PC column 10, and the non-shrinkable mortar is injected through the injection hole 611, and the sleeve 61 is filled with non-exhaust mortar to perform wet bonding. have.

Such a sleeve-type bonding member 60 is configured so that the lower end of the sleeve 61 is exposed to the lower end of the PC pillar 10 so that a plurality of them are embedded in the PC pillar 10, and the sleeve type bonding member 60 on the ground. A plurality of coupling members 62 are installed to protrude upward correspondingly, so that the coupling member 62 is inserted into the sleeve 61 so that the sleeve 61 is filled with non-shrink mortar to perform wet bonding.

Wet bonding using the sleeve-type bonding member 60 may be performed to fill non-shrink mortar in this step, but in this step, only dry bonding is performed, and in the topping concrete 80 pouring step to be described later, the sleeve 61 is not It can also be filled with shrink mortar.

Thereafter, the connection hardware 30 is installed on the PC column 10 (b).

5 is an enlarged view of the connection hardware and the support installation structure in the present invention.

The connecting hardware 30 is a means to be installed on the PC pole 10 to fasten and fix the support 40 for the support of the PC beam 20, and as shown in FIG. 5, a certain height of the PC pole 10 to horizontally penetrate the horizontal fixing member 31, fasten both ends with a nut 311 to fix it to the PC column 10, and use this horizontal fixing member 31 to use the spacer 33, the outer fixing member ( 35) and the inner fixing member 36 are fixed.

The spacer 33 is configured such that the outer fixing material 35 and the inner fixing material 36 are spaced apart by a predetermined distance from the outer surface of the PC column 10, so that the installation position adjustment and installation of the support 40 are easy. will be.

Therefore, it may be made of a prismatic steel pipe of various lengths, and one end is fixed to the outer surface of the PC column 10 , and a pair is fixedly installed by being spaced apart from each other by a certain distance on both sides of the horizontal fixing member 31 .

In particular, the spacer 33 is spaced apart in the horizontal direction and installed as a pair, but is also spaced apart from each other by a predetermined distance in the vertical direction to be additionally installed. By holding the upper and lower portions of (41), respectively, the vertical support (41) can be maintained in a vertical position while preventing separation and the like.

Such a spacer 33 is configured such that the outer fixing material 35 is welded or bolted to connect the outer ends of the spacers 33 of the same height in the horizontal direction, and is spaced apart from the outer fixing material 35 by a certain hang. The inner fixing member 36 is fixed to the spacer 33 .

The inner fixing member 36 is configured parallel to the outer fixing member 25, and the vertical support 41 of the support 40 penetrates into the space between the outer fixing member 35 and the inner fixing member 36, so that it is vertical. It is possible to adjust the distance between the inner fixing member 36 and the outer fixing member 35 according to the thickness of the support 41 , and for this purpose, the inner fixing member 36 is vertically moved along the longitudinal direction of the spacer 33 . At a position where the support 41 can be fixed, it is fastened to the spacer 33 with a bolt or the like.

In particular, the connecting hardware 30 is such that the fixing member 34 is configured to engage the penetrating member 31 by positioning the penetrating member 31 up and down between the vertically spaced spacers 33, and the fixing member 34 and the spaced apart By configuring the vertical binder 38 to vertically penetrate the material 33 at the same time, and to fasten both ends of the vertical binder 38 with nuts 29, the spacer 33 is easily attached to the PC column 10. It can also be installed and fixed.

In this embodiment, the spacer 33 of the connecting hardware 30 is installed only on one side of the PC column 10, and the other end of the penetrating member 31 is installed with a washer 32, etc. It was fixed, but the spacer 33, the outer fixing material 35 and the inner fixing material 36 were installed on the other side of the PC column 10 in the same structure, so that the PC beams 20 were installed on both sides of the PC column 10. Even when installed, the installation of the support 40 may be possible.

Thereafter, the support 40 is installed on the connecting hardware 30 (c).

6 is a front view of a support used in the present invention.

The support 40 is to support the end of the PC beam 20, as in FIG. 6, a pair of vertical supports 41 and a plurality of braces 42 connecting the vertical supports 41, It is made to include a support 43 and a stanchion member 45 supported by a pair of support portions 43 configured at the upper end of the vertical support (41).

Such a support 40 moves along the longitudinal direction of the inner fixing member 36 in a state in which the vertical support 41 is in close contact with the inner surface of the outer fixing member 365 in the vertical support 41 of the spacer 33 . In close contact with the spacer 33 with bolts, etc. to fasten the support 40 to the connecting hardware 30 .

Thereafter, as in FIG. 1c , the PC beam 20 is installed to be supported on the support 40 (d), and the PC slab 60 is installed (e).

A support 40 is installed at the lower portion of the PC beam 20 so that the stanchion member 45 contacts and supports it, and the PC slab 60 may use various slabs such as a hollow slab.

Then, as in FIG. 1d, the topping concrete 70 is poured on the PC column 10, the PC beam 20 and the PC slab 60 (f).

Finally, as in FIG. 1e, after curing the topping concrete 70, the connecting hardware 30 and the support 40 are removed (g).

The connecting hardware 30 is finished by disassembling other members and cutting both protruding ends of the horizontal fixing member 31, or as shown, the horizontal fixing member 31 is also completely removed and the horizontal fixing member 31 is removed. It can also be finished by filling the through-hole 190 of the finished portion.

As described above, the long-life Ramen-jo MDU PC construction method that can shorten the construction period by using the connecting hardware of the present invention as described above by configuring a temporary system at the end of the PC beam to secure the binding performance between the pillars and the integration performance for the construction load compared to the existing method by dropping the PC member It reduces the risk of collapse to ensure structural safety during construction, and can secure efficiency and safety compared to the application of the existing conventional method. can be minimized and the temporary system can be reused, which has a very useful economic effect.

So far, the present invention has been described in detail with reference to the presented embodiment, but those skilled in the art can make various modifications and variations of the invention without departing from the technical spirit of the present invention with reference to the presented embodiment. will be. The present invention is not limited by such variations and modifications, but only by the claims appended hereto.

10: PC column
20: PC beam
30: connecting hardware
40: support
60: PC slab
70: topping concrete

Claims (5)

(a) installing the PC pillar (10);
(b) on the PC column (10),
A horizontal fixing member 31 penetrating horizontally at a certain height of the PC column 10, and fixing both ends of the penetrating member 31 from the outside of the PC column 10 (a nut 311) and a predetermined length One end is fixed in contact with the outer surface of the PC column 10, the spacer 33 is spaced apart on both sides by a predetermined distance around the horizontal fixing member 31, a pair is fixed and installed, and the outer end of the spacer 33 It is installed by adjusting the distance from the outer fixing material 35 configured to connect the outer fixing material 35 and fixed in parallel with the outer fixing material 35 at a position spaced apart from the outer end of the spacer 33 inward by a predetermined distance. Installing the connecting hardware 30 comprising the inner fixing member 36 to be;
(c) a pair of vertical supports 41 to the connecting hardware 30, a plurality of braces 42 connecting the vertical supports 41, and a support portion 43 configured at the upper end of the vertical support 41 and A support 40 including a stanchion member 45 supported by a pair of support parts 43 is installed so that the vertical support 41 is positioned between the outer fixture 35 and the inner fixture 36 to be bound. to do;
(d) installing the PC beam 20 to be supported on the support 40;
(e) installing the PC slab 60;
(f) pouring the topping concrete 70 on the PC column 10, the PC beam 20 and the PC slab 60;
(g) removing the connecting hardware 30 and the support 40 after curing the topping concrete 70; The method according to claim 1,
In step (a),
The anchor 51 for coupling is installed so as to protrude to the upper part of the ground at the location where the PC column 10 is constructed,
The PC column 10 includes a mounting hole 11 formed by cutting an outer edge, and a coupling plate 12 that is fixed to the lower end and has a through hole in the portion where the installation tool 11 is formed to form a coupling hole 121 consists of,
A long-life Ramen-like apartment house PC method capable of shortening the period by using a connecting hardware, characterized in that the coupling anchor 51 penetrates the coupling hole 121 of the coupling plate 12 to perform dry bonding. The method according to claim 1,
In step (a),
A sleeve-type joining member 60 formed by joining a reinforcing bar 63 vertically configured to the upper end of the sleeve 61 and the sleeve 61,
A plurality of sleeves are embedded in the PC column 10 so that the lower end of the sleeve 61 is exposed to the lower end of the PC column 10,
A plurality of coupling members 62 are installed on the ground to protrude upward to correspond to the sleeve-type bonding member 60,
A long-life Ramenjo apartment house PC construction method that can shorten the period of time using a connecting hardware, characterized in that the coupling member 62 is inserted into the sleeve 61 so that the sleeve 61 is filled with mortar to perform wet bonding. The method according to claim 1,
In step (b),
The connecting hardware 30 and the spacer 33 are spaced apart from each other by a predetermined distance in the vertical direction and each additionally installed. 5. The method according to claim 4,
In step (b), the connecting hardware 30 is,
The fixing member 34 is configured to position and engage the penetrating member 31 between the vertically spaced spacers 33, and to vertically penetrate the fixing member 34 and the spacer 33 at the same time. A long-life Ramen-jo apartment house PC construction method that can shorten the air period using a connecting hardware, characterized in that the vertical binder 38 is configured and both ends of the vertical binder 38 are fastened with nuts 29.

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