KR20220126001A - construction method and structure for TG beam form - Google Patents

Abstract

The present invention is a truss girder that can shorten the construction period by minimizing the work at the site by joining the formwork panels to which the truss girder is attached, manufacturing it according to the size of the column, inserting and fixing the internal rebar, and then transporting and installing it to the construction site. It relates to a composite columnar formwork structure and its construction method.
The present invention relates to a deck panel, a truss girder fixedly installed in the longitudinal direction of the deck panel, and a frame assembled front and rear and left and right by binding wedge pins to the edge flange of the deck panel on which the truss girder is mounted; It is configured to include a reinforcing bar assembly disposed inside the formwork, and a column band installed on the outer rim at regular intervals along the longitudinal direction so that the abutting portions of the formwork are maintained at right angles.

Description

A truss girder compounded column form structure and its construction method {construction method and structure for TG beam form}

The present invention relates to a formwork used for the production of a columnar frame installed in a concrete structure, and more particularly, it is manufactured according to the size of the column by bonding formwork panels with truss girder attached to them, and inserting and fixing the internal reinforcing bars at the construction site It relates to a truss girder-synthesized column formwork structure and its construction method, which can shorten the construction period by minimizing on-site work by transporting and installing it with

When constructing a building structure, reinforcing reinforcing bars in the state of placing the formwork, pouring concrete, and forming concrete with fluidity in a predetermined shape and size for a short period of time until it is cured to some extent. It is customary to dismantle the formwork on

Most of the formwork is composed of a blocking board in contact with the concrete and supporting beams, bands, and fasteners, which not only takes an excessive amount of material, but also requires a considerable amount of time to assemble and dismantle the formwork, and since the formwork has a considerable weight, Not only does it entail risks when assembling or dismantling, but in the case of steel formwork, the initial cost is considerably increased because equipment such as a crane must be used.

In addition, the increase in the amount of materials and construction required for the construction of the formwork is the main cause of the increase in the construction cost and construction period. to be.

In addition, since the formwork has a large amount of concrete poured at one time, a very large pressure is applied to the formwork, so deformation of the formwork due to lateral pressure of concrete sometimes causes safety accidents due to collapse.

In particular, columns are interconnected to beams or slabs to support the upper load as well as transfer the load generated from the upper to the ground, so it can be said to be a very important part in the safety of the structure.

As one of the related technologies, for example, the technology disclosed in Patent Publication No. 1998-0028581 requires a separate buried reinforcing bar on the inside of the formed steel sheet, so it is not only difficult to manufacture the factory but also perpendicular to the reinforcing bar. It is not easy to fix the formed main bars, and since it is necessary to fix the formed steel sheets by adding a separate member to the outside for lateral reinforcement, not only is it difficult to fix between the formed steel sheets, but also pour concrete inside the formed steel sheets and cure them. The member must then be removed.

In addition, in the background art, since a separate reinforcing member is not configured therein, when a large column is formed, splaying or damage of the formed steel sheet used as an external formwork may occur.

In addition, in the Patent Registration No. 1490748, a plurality of cast A-beams disposed at a distance from the outer surface of the column edge, and a plurality of Z-bars disposed at regular intervals up and down on the outside of these cast A-beams Although it has been described with respect to an example consisting of a horizontal support member of The cumbersome work process that has to be fixed depending on bolts, rivets, or welding increases the cost, as well as requires a lot of manpower. contains

Registered Patent No. 0860831 (Registered on September 23, 2008) - Fixed structure for column formwork. Registered Patent No. 1490748 (Registered on Feb. 2, 2015) - Pre-assembled pillar with one piece of gold deck formwork. Registered Patent No. 1556285 (Registered on September 22, 2015) - Formwork reinforcement device for column concrete pouring with adjustable length. Registered Patent No. 1702958 (registered on Jan. 31, 2017) - Formwork device for pillars. Registered Patent No. 2098688 (registered on April 2, 2020) - Form support device for SRC columns.

The present invention is to solve the above problems of the prior art, and an object of the present invention is to use a column form with reinforced truss girder to block the pressure generated inside the form when pouring concrete, thereby reinforcing a yoke on the outside of the conventional formwork. It is to provide a column formwork structural material with truss girder synthesized and its construction method, which can significantly reduce formwork installation costs by not only omitting the joists, but also minimizing the installation of copper bars.

In addition, the present invention is a truss girder that can reduce material consumption and labor costs by modularizing and assembling temporary materials using a three-dimensional truss girder manufactured at light weight so that it can be easily constructed at the construction site after factoryizing the production process. An object of the present invention is to provide a columnar formwork structure material and a construction method thereof.

The truss girder is synthesized column formwork structure material in the present invention for achieving this object, the deck panel, the truss girder that is fixedly installed in the longitudinal direction of the deck panel, and the edge flange of the deck panel on which the truss girder is mounted A frame formed by assembling front and back and left and right by binding a wedge pin to the frame, a reinforcing bar assembly disposed inside the frame, and a part in contact with each other of the form are kept at a right angle along the lengthwise direction so that the outer rim is spaced apart. It consists of a column band to be installed.

In addition, face ears are mounted on the inner surface of each connection part of the deck panel constituting the formwork, and at the same time, corner angles are respectively mounted between the outer flanges.

In addition, the reinforcing bar assembly includes reinforcing bars disposed in multiple rows along the longitudinal direction in the deck panel, a stirrup mounted in a right angle direction at a distance to the reinforcing bar, and sandwiched between each reinforcing bar and the stirrup to maintain the spacing It is composed of a donut-shaped spacer for

In addition, the column band is provided with a horizontal bar mounted on the circumferential surface of the frame in all directions, each of these horizontal bars is a U-shaped bracket equipped with a hole formed at regular intervals at one end and a fixing bolt and a spacing adjusting bolt at the other end. It can be configured to be mutually fastened by

On the other hand, in the construction method of the truss girder compounded column formwork structure material in the present invention, the step of selling the deck panel having a flange formed therein, the step of mounting the truss girder in the longitudinal direction with respect to the deck panel, and the truss After arranging the flanges and corner angles of the deck panel in which the girder is synthesized in contact with each other, fasten wedge pins to fix them at right angles, and form the frame by binding the front and back and left and right sides, and the inner edge of the deck panel constituting the form At the same time as fixing the face ears to the mounting of the corner angle between the outer flanges, the step of inserting and fixing the reinforcing bar assembly in the formwork, the abutting parts of the formwork are maintained at a right angle along the lengthwise direction. It consists of a step of installing a column band on the outer rim at intervals.

In addition, the step of installing the column band may further include a step of enabling horizontal position adjustment using a fixing bolt and a spacing adjusting bolt mounted on one end of the horizontal bar.

The present invention can minimize the work at the site and greatly shorten the construction period by joining the deck panels in which the truss girder is synthesized to each other, manufacturing it according to the size of the beam, inserting and fixing the internal rebar, and then transporting and installing it to the construction site.

In addition, the deck panel composed of truss girder is light in weight compared to its volume, so it is easy to handle, and by installing column bands at regular intervals on the outside of the formwork, it is possible to effectively block the pressure generated inside the form when pouring concrete. stability can be ensured.

In addition, when installing the column formwork, it is possible to solve the disadvantage of increasing material and labor costs due to the formwork size required in various ways according to the structural specifications of the building such as euroform or steel form at the construction site, and when pouring slab concrete It becomes possible to resist the generated load more effectively.

1 is a perspective view showing a deck panel applied to a columnar formwork structure according to the present invention;
2 is a perspective view of a state in which a truss girder is synthesized on a deck panel;
Figure 3 is a perspective view of a state in which the deck panel is bound to each other;
4 is a front configuration view showing the deck panel of FIG. 3 in an erected state;
5 is a side configuration view of FIG. 4;
6 is a partial perspective view of a truss girder;
7 is a perspective view showing a state in which the deck panel is assembled;
8a, 8b are a perspective view and a front view of a state in which the reinforcing bar assembly is mounted;
9A, 9B are an overall perspective view and a front view of the reinforcing bar assembly;
10a and 10b are a perspective view and a front view of a state in which the column formwork is synthesized;
11 is an enlarged plan view of the column formwork;
12a, 12b are a perspective view and a front view of a state in which the column formwork is installed;
13 is a block diagram listing the construction process of the column formwork.

Hereinafter, embodiments according to the present invention will be described in more detail with reference to the accompanying drawings, but the specific structures and functions they have are not limited to the embodiments described herein because they represent one configuration example.

1 to 13 are diagrams for explaining a truss girder synthesized column formwork structure according to the present invention and a construction method thereof.

As shown in these drawings, the present invention is a deck panel 30, a truss girder 40 mounted on the deck panel 30, and a formwork 50 manufactured integrally by the binding of each deck panel 40. and a reinforcing bar assembly 60 disposed inside the form 50 and column bands 70 installed at regular intervals along the longitudinal direction on the outer rim of the form 50 .

As shown in Figure 1, the deck panel 30 can be manufactured in various ways by modularizing high-strength plastic or metal materials to a predetermined standard. That is, the flange 31 is bent in a L-shape along both sides of the deck panel 30 in the longitudinal direction or in the horizontal direction to be integrally formed.

Accordingly, several deck panels 30 are combined according to the specifications of the formwork to be constructed and manufactured in one piece, and then the wedge pins 33 are fastened through the long holes 32 formed at regular intervals in these flanges 31 or Alternatively, the deck panels 30 adjacent to each other may be coupled to each other by welding or the like.

As shown in Figures 2 to 6, the deck panel 30, the truss girder 40 is arranged in one row or two rows are fixedly installed. The truss girder 40 is composed of a lattice wire 41 and an upper chord 42 and lower chords 43a and 43b that are respectively fixedly installed at intervals to the lattice wire 41 .

That is, the upper chord 42 is integrally formed by welding at intervals on the upper horizontal portion of the lattice wire 41 bent in a wave shape, and at the same time, the lower chord 43a, on both sides of the lower tip of the lattice wire 41, 43b) is fixedly installed to constitute the truss girder 40 of the trapezoidal shape.

In the truss girder 40, the diameter of the upper chord 42 and the lower chord 43a, 43b and the diameter of the lattice wire 41 are set according to the site conditions and the magnitude of the load applied to the truss during concrete pouring. Of course, the welding pitch and the height of the truss girder 40 may be determined.

In addition, the lower chords 43a and 43b of the truss girder 40 can be fixedly installed by fastening with bolts 45 through the engaging pieces 44 at predetermined intervals on the inner surface of the deck panel 30 . .

7 to 11, the deck panel 30 on which the truss girder 40 is mounted has the upper surface open by binding the wedge pin 33 through the corner angle 52 on the edge flange 31 and At the same time, it is assembled on both front and back and left and right sides to constitute one formwork 50, and a triangular facet 51 is mounted on the inner edge of the deck panel 30, so that when disassembling the form 50 in the future, the corner part is damage can be prevented.

A reinforcing bar assembly 60 is disposed inside the formwork 50 . The reinforcing bar assembly 60 includes reinforcing bars 61 arranged in multiple rows along the longitudinal direction, stirrups 62 mounted in a right angle direction at intervals with respect to these reinforcing bars, and each of the reinforcing bars 61 and the stirrups. It is composed of a plurality of donut-shaped spacers 63 to be sandwiched between the rubs 62 to maintain a gap.

The reinforcing bar assembly 60 may be properly disposed prior to assembling all four deck panels 30 . That is, according to the reinforcement specifications for the deck panel 30 , a plurality of reinforcing bars 61 are vertically erected and at the same time, each of the reinforcing bars 61 can be fixed by the stirrups 62 .

In addition, after installing the donut-type spacer 63, which is a reinforcing bar covering spacer, into the stirrup 62, the deck panel 30 is placed in close contact with the outside of the reinforcing bar 61, and then facing the other deck panel 30 It can be fixed by fixing the corner portion to be 90°, and fastening the wedge pin 33 to the neighboring corner angle 52 .

In addition, in the state in which the deck panel 30 is assembled, a column band 70 is mounted around the outer periphery to prevent lateral pressure. That is, the form 50 is constituted by maintaining the portions in contact with each other of the deck panel 30 at a right angle, and at regular intervals along the longitudinal direction of the form 50, a column band 70 for preventing lateral pressure on the outer rim ) can be installed.

The column band 70 includes a horizontal bar 71 mounted on the four circumferential surfaces of the deck panel 30 and includes a fastening means for binding each corner portion. That is, as the through-holes 72a are formed at regular intervals on one side of the horizontal bar 71 and at the same time a U-shaped bracket 72b is formed on the other side, they can be securely fastened to each other by the fixing bolts 73, It is configured to properly adjust the clearance by using the spacing adjusting bolt 74 .

12A and 12B are views illustrating a state in which the above-described column formwork is installed in connection with the lower part of the beam formwork, and the beam formwork (80A) or the slab formwork (80B) for constructing a horizontal beam or slab, etc. at the upper end of the column formwork; ) can be installed in conjunction.

Next, with reference to FIG. 13, the process of constructing the truss girder composited column formwork structure will be described.

First, in the state in which the deck panel 30 is opened (S1), the truss girder 40 is mounted in one or two rows in the longitudinal direction on each deck panel 30, and then the engaging pieces 44 at predetermined intervals are By placing and assembling using bolts 45, it is synthesized in one piece (S2).

Then, according to the design specifications of the beam formwork to be built, the formwork can be manufactured by fastening the wedge pin 33 with the long hole 32 formed in the flange 31 of the deck panel 30 (S3), each deck panel At the same time as installing the face ear 51 on the inner edge to which the 30 is connected, the corner angle 52 is mounted on the flange 31 of the outer connection part (S4).

In addition, before any one side of the deck panel 30 is assembled, the reinforcement assembly 60 is inserted and arranged, and then the four deck panels 30 are integrally finished (S5).

Next, the column band 70 is mounted to the outside of the form 50 (S6). At this time, it is preferable that the installation interval of the column band 70 to block the pressure generated inside the column when the concrete is poured into the column form is set appropriately by structural calculation.

In the case of this column band 70, the horizontal bar 71 closely installed on the four circumferential surfaces of the deck panel 30 and the fastening means for binding each corner portion, that is, the through hole formed in the horizontal bar 71 ( 72a) and the U-shaped bracket 72b, they can be securely fastened to each other by the fixing bolts 73, and it is also possible to finely adjust the gap adjustment bolts 74 when a gap occurs (S7).

After that, after transporting and installing the column form to the site, the column can be constructed by pouring concrete into the mold 50 and curing it, and the horizontal beam using the beam form (80A) or the slab form (80B) is followed by that can do the job.

As described above, according to the truss girder compounded column formwork structure and its construction method according to the present invention, the deck panels in which the truss girder are synthesized are joined to each other and manufactured according to the size of the beam, and after inserting and fixing the internal reinforcing bars By transporting and installing to the construction site, the work on the site can be minimized and the construction period can be greatly shortened.

In addition, the deck panel composed of truss girder is light in weight compared to its volume, so it is easy to handle, and by installing column bands at regular intervals on the outside of the formwork, it is possible to effectively block the pressure generated inside the form when pouring concrete. stability can be ensured.

In addition, when installing the column formwork, it is possible to solve the disadvantage of increasing material and labor costs due to the formwork size required in various ways according to the structural specifications of the building such as euroform or steel form at the construction site, and when pouring slab concrete It becomes possible to resist the generated load more effectively.

The technical problem of the present invention is achieved by the technical configuration as described above, and although described with reference to the limited embodiments and drawings, the present invention is not limited thereto and the present invention is not limited thereto by those of ordinary skill in the art. It goes without saying that various modifications and variations are possible within the scope of equivalents of the technical spirit and the claims to be described below.

30: deck panel 31: flange
32: long hole 33: wedge pin
40: truss girder 41: lattice wire
42: upper current 43a, 43b: lower current
44: catch piece 45: bolt
50: frame 51: cotton ear
52: corner angle 60: rebar assembly
61: reinforcing bar 62: stirrup
63: donut-shaped spacer 70: column band
71: horizontal bar 72a: through hole
72b: U-shaped bracket 73: fixing bolt
74: gap adjustment bolt

Claims (6)

Deck panel 30 and,
A truss girder 40 fixedly installed in the longitudinal direction of the deck panel, and
A formwork 50 assembled front and rear and left and right by binding wedge pins to the edge flange of the deck panel on which the truss girder is mounted,
A reinforcing bar assembly 60 disposed inside the formwork, and
The truss girder is synthesized column form structure material, characterized in that it comprises a column band (70) installed on the outer rim at regular intervals along the longitudinal direction so that the abutting portions of the formwork are maintained at right angles. According to claim 1, wherein the face ears 51 are mounted on the inner surface of each connection part of the deck panel 30 constituting the formwork 50, and at the same time, a corner angle 52 is mounted between the outer flanges, respectively. Structural member with truss girders made of According to claim 1, wherein the reinforcing bar assembly (60) is the reinforcing bars (61) arranged in multiple rows along the longitudinal direction in the deck panel (30), and stirrups (62) mounted at a right angle to the reinforcing bars at a distance from each other. ), and a truss girder compounded column formwork structure, characterized in that it is composed of a donut-shaped spacer (63) for maintaining the gap by being sandwiched between the respective reinforcing bars and the stirrups. According to claim 1, wherein the column band (70) is provided with a horizontal bar (71) mounted on the circumferential surface of the frame, each of these horizontal bars are formed at regular intervals at one end of the through hole (72a) and the other end A truss girder compounded column formwork structure, characterized in that it is configured to be mutually fastened by a U-shaped bracket (72b) to which a fixing bolt (73) and a spacing adjusting bolt (74) are mounted. A step (S1) of selling the deck panel 30 having a flange formed therein;
Mounting the truss girder 40 in the longitudinal direction with respect to the deck panel (S2), and
After arranging the flanges and corner angles of the deck panel in which the truss girder is synthesized, the wedge pins 33 are fastened to fix them at right angles, and the front and rear and left and right sides are bound to form the frame 50 (S3),
A step (S4) of fixing the face ear 51 to the inner edge portion of the deck panel constituting this formwork and mounting the corner angle 52 between the outer flanges at the same time (S4);
A step (S5) of inserting and fixing the reinforcing bar assembly 60 in the formwork;
Construction of a truss girder-combined column formwork structure comprising the step (S6) of installing column bands 70 on the outer rim at regular intervals along the longitudinal direction so that the abutting parts of the formwork are maintained at right angles Way. The method of claim 5, wherein in the step of installing the column band (70), the horizontal position adjustment is performed using a fixing bolt (73) and a spacing adjusting bolt (74) mounted on one end of the horizontal bar (71). The construction method of the truss girder composite column formwork, characterized in that the step (S7) to enable it is further included.

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