KR20220080889A - 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 beam, inserting and fixing the internal rebar, and then transporting and installing it to the construction site. It relates to a composite beam formwork structural material and its construction method.
The present invention provides a deck panel, a 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 assembled from the lower and left and right sides, a tie band installed on the outer rim at regular intervals along the longitudinal direction so that the parts in contact with each other are maintained at right angles, and the left and right vertically arranged through the tie band It consists of a tie bolt and Sepa bolt installed between the deck panels, and a reinforcing bar assembly disposed inside the formwork, and can be transported to the construction site and constructed at the site according to the process.

Description

A truss girder compounded beam formwork 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 formwork for a beam installed in a concrete structure, and more particularly, it is manufactured according to the size of the beam by joining formwork panels with truss girder attached to them, and inserting and fixing the internal reinforcing bars at the construction site It relates to a beam formwork structural material synthesized with a truss girder that can shorten the construction period by minimizing on-site work by transporting and installing it by means of a transport and installation method therefor.

When constructing a building structure, concrete with fluidity is formed in a predetermined shape and size for a short period of time until the concrete is cured to a certain extent after reinforcing rebar and pouring the concrete in the state where the formwork is installed. 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. Not only does it entail risk during assembly or dismantling, but in the case of steel formwork, the initial cost is considerably increased because equipment such as a crane must be used.

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.

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

As one of the related technologies, a technology related to a beam structure form is disclosed in Korean Patent Registration No. 0954447. That is, as in the accompanying FIGS. 1 to 3, the beam formwork 100 is a lower plate 130 in which beads 131 and 132 are formed in a rectangular shape to correspond to the length of the beam structure to be constructed, and the lower plate 130 of The first and second side plates 110 and 120 that are respectively fixed and erected at both ends corresponding to the length and formed to be bent along the width direction, and the lower plate 130 are horizontally spaced apart from each other in the longitudinal direction so that both ends are the first and second ends A plurality of horizontal reinforcing plates 150 fixed to the inner surfaces of the side plates 110 and 120, respectively, to which reinforcing reinforcing bars 160a and 160b are reinforced, and a lower plate 130 at positions adjacent to the first side plate 110 in the inward direction. A plurality of first support members 141 extending to be spaced apart from each other along the longitudinal direction of the , one end is fixed to the lower plate 130 and the other end is exposed above the upper end of the first side plate 110; At a position adjacent to the second side plate 120 in the inward direction, one end is fixed to the lower plate 130 while standing apart from each other along the longitudinal direction of the lower plate 130 , and the other end is higher than the upper end of the second side plate 120 . It is configured to include a plurality of second support members 142 extending to be exposed upwards.

However, in this prior art, although there is an advantage of minimizing the work on the construction site, it requires a lot of manpower when welding the steel plate and the reinforcing bar, so the manufacturing cost increases, and the cost loss due to the steel plate permanently stored after concrete pouring Of course, rust prevention cost increases significantly due to rust.

In addition, since it is a manufacturing method that relies on iron sheet forming and welding work in the beam formwork manufacturing process, as the factory must be manufactured on a specialized production assembly line, a factor of cost increase due to long-distance transport occurs, and construction problems in the field occur. There is a problem that it is difficult to respond immediately.

Registered Patent No. 0954447 (Registered on April 15, 2010) - Formwork for beam structure Registered Patent No. 1009753 (Registered on Jan. 13, 2011) - Formwork for beam structure Registered Patent No. 1187666 (Registered on September 26, 2012) - Joint structure and joining method of column and beam Registered Patent No. 2071872 (Registered on Jan. 23, 2020) - Open beam formwork installation method using deck assembly

The present invention is to solve the problems of the prior art as described above, and an object of the present invention is to block the pressure generated inside the form when pouring concrete using a beam and column formwork reinforced with a truss girder. An object of the present invention is to provide a truss girder-synthesized beam formwork structural material and its construction method, which can reduce the cost of formwork installation by not only omitting the yoke or joist reinforced on the outside, 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 beam formwork structural material and a construction method thereof.

The beam formwork structure in which the truss girder is synthesized in the present invention for achieving this object is a deck panel, a 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 The upper surface is opened by binding the wedge pins through a corner angle to the frame, and the outer frame is spaced at regular intervals along the longitudinal direction so that the frame formed by assembling the lower and left and right sides, and the abutting parts of the form are maintained at right angles. It is configured to include a tie-band installed on the, tie-bolts and sepha bolts installed between the deck panels vertically arranged on the left and right through the tie-band, and a reinforcing bar assembly disposed inside the formwork.

In addition, the tie band comprises a pair of binding pieces branched to both sides by forming a horizontal bar and a vertical bar with an inclined surface interposed therebetween, and a turnbuckle is interposed between the front ends of the horizontal bar so that they can be mutually bound.

In addition, the tie bolt may be configured to be connected and installed with the Sepha bolt via a decon, and to be fastened with a nut via a washer at the front end of the Sepha bolt.

On the other hand, in the construction method of the beam formwork structure material in which the truss girder is synthesized in the present invention, the step of selling the deck panel having a flange, the step of installing 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 synthesized with girder in contact with each other, fasten wedge pins to fix them at right angles, but bind the deck panel to three sides except the upper surface to manufacture a frame; Reinforcing bar assembly in the form The step of inserting and fixing, and the steps of attaching tie bolts and Sepa bolts at regular intervals between the vertically arranged deck panels, and then binding them to a tie band; At the same time, it consists of a step of mounting the beam support joists.

In addition, in the installation step of the tie bolt and the Sepha bolt, a decon is interposed between them to connect and install, and at the same time, a washer is interposed on the outside of the Sepa bolt to be in close contact with the tie band. have.

According to the present invention, the deck panels in which the truss girder is synthesized are joined to each other, manufactured according to the size of the beam, inserted and fixed with internal rebar, and then transported and installed to the construction site, thereby minimizing the work at the site and greatly shortening the construction period.

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 tie 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 beam formwork, it is possible to solve the disadvantage of increasing material and labor costs due to the formwork dimensions that are 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 As the generated load is transmitted to the tie band through the reinforcing plate constituting the beam form below the slab plate, the load during concrete pouring can be prevented more effectively.

1 is a view showing an example of a general beam structure formwork;
2 is a view showing the coupling state of the first and second side plates and the lower plate in FIG. 1;
Figure 3 is a view showing the shape of the lower plate in Figure 2;
4 is a perspective view showing a deck panel applied to a beam formwork structure according to the present invention;
5 is a perspective view of a state in which a truss girder is synthesized on a deck panel;
6 is a perspective view of a state in which the deck panel is bound to each other;
7 is a front configuration view showing the deck panel of FIG. 4 in an erected state;
8 is a side configuration view of FIG. 7;
9 is a partial perspective view of a truss girder;
10 is a perspective view showing a beam formwork;
11 is an enlarged view of the side of FIG. 10;
12 is a front configuration view showing the reinforcing mechanism mounted on the formwork separated;
13 is a perspective view of a state in which the column form including the beam formwork is synthesized;
14 is an enlarged view of the side of FIG. 13;
15 is a block diagram listing the construction process of the beam formwork structural member.

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 in this specification since they represent one configuration example.

4 to 15 are views for explaining a beam formwork structure in which a truss girder is synthesized according to the present invention and a construction method thereof, and the present invention is a deck panel 30 and a deck panel 30 mounted on the deck panel 30 A truss girder 40 and a formwork 50 integrally manufactured by the binding of each deck panel 40, and a tie band 60 installed at regular intervals along the longitudinal direction on the outer rim of this formwork 50 And, it is configured to include a tie bolt (70A) and a sepha bolt (70B) mounted on the tie band (60), and a reinforcing bar assembly (80) arranged inside the frame (50).

As shown in Figure 4, 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 or horizontal direction to be integrally formed.

Accordingly, a plurality of deck panels 30 are combined and manufactured in one piece according to the specifications of the formwork to be constructed, 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.

5 to 9, the truss girder 40 is arranged in one row or two and is fixedly installed on the deck panel 30. The truss girder 40 consists 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 . .

10 to 12, the deck panel 30 on which the truss girder 40 is mounted is opened by binding the wedge pin 33 to the edge flange 31 with the corner angle 34 interposed therebetween. At the same time, it is assembled in the lower part and left and right sides to constitute one mold 50, and triangular face ears 51 are mounted on the inner edge of the deck panel 30 so that when disassembling the mold 50 in the future, the corner part is damage can be prevented.

In addition, the beam support joists 52 are mounted on the lower deck panel 30 constituting the formwork 50 .

A tie band 60 for preventing lateral pressure is installed around the outer periphery of the form 50 . That is, the form 50 is configured so that the abutting portions of the deck panel 30 are maintained at a right angle, and a tie band for preventing lateral pressure is placed on the outer rim at regular intervals along the longitudinal direction of the form 50 (60) is installed, and the tie bolts 70A and the Sepa bolts 70B are installed in conjunction with each other between the deck panels 30 disposed vertically on the left and right through the tie band 60 .

12, the tie band 60 is composed of a horizontal bar 61b and a vertical bar 61c with an inclined surface 61a interposed therebetween to constitute a pair of binding pieces 62 branched to both sides, and the The front end of the horizontal bar 61b is assembled with each other by the turnbuckle 63, and at the same time as the upper end of the vertical bar 61c, one reinforcing plate 64 is interposed between the fastening bolts 65a and the supporting bolts 65b. It is installed around the outer periphery of the form (50).

In addition, in the middle portion of the vertical bar 61c, a washer 72 is inserted in a state in which the sepha bolt 70B is exposed to the outside by interposing the de-cons 71 on both sides of the tie bolt 70A, and then the nut ( 73) can be mutually concluded.

13 and 14 , the reinforcing bar assembly 80 is disposed inside the formwork 50 . The reinforcing bar assembly 80 may be pre-assembled in a factory by welding a plurality of reinforcing bars 82 in the longitudinal direction with respect to the stirrups 81 disposed at predetermined intervals. The reinforcing bar assembly 80 is preferably disposed by inserting it between the formwork 50 before the installation of the tie band 60 or the tie bolt 70A and the sepha bolt 70B.

Next, a process of constructing the beam formwork structure in which the truss girder is synthesized will be described with reference to FIG. 15 .

First, in a 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 by framing using the bolt 45 (S2).

Then, according to the design specifications of the beam formwork to be built, the wedge pin 33 is fastened through the corner angle 34 to the flange 31 formed on the edge of each deck panel 30 to form a one-piece form 50. In this case, the upper surface is exposed and the deck panel 30 is disposed on three surfaces of the lower end and the left and right sides (S3).

After that, the reinforcing bar assembly 80 is inserted and arranged in the form 50 (S4), and then the tie band 60 is mounted to the outside of the form 50 (S5). That is, after passing the tie bolts 70A between the reinforcing bars 82 of the deck panel 30 arranged vertically, the sepa bolts 70B are interposed and the tie band 60 and the nut 73 are interposed (S5). .

At this time, it is preferable to determine the installation intervals of the tie bolts 70A and Sepha bolts 70B and the tie band 60 to block the pressure generated inside the beam when the concrete is poured into the beam formwork by structural calculation.

Next, fasten the turnbuckle 63 between both horizontal rods 61b constituting the tie band 60, and fix the face ear 51 on the inner edge portion to which the deck panel 30 is connected, and at the same time install the beam By mounting the support joists 52, the production of the formwork 50 is completed (S6).

On the other hand, in the process of installing the tie bolt 70A, after inserting and arranging the decon 71, the decon 71 is passed through the sepa bolts 70B to both sides of the vertical rod 61c constituting the tie band 60. ), and it is preferable to perform an operation to fix the washer 72 by fastening it with the nut 73 in the wrapped state (S7).

After that, the beam can be constructed by transporting the beam form to the site, installing it horizontally on the top of the column form supporting the structure, and pouring concrete into the formwork 50 to cure it.

At this time, since the beam formwork is installed below the slab plate and the large load generated from the formwork flows to the temporary bridge located below along the beam or column when pouring concrete, a large load is placed on the flange of the upper part of the beam formwork in contact with the slab formwork. A reinforcing plate 64 is installed on the upper part of the tie band 60 to prevent this from being transmitted so that the load flowing from the slab plate flows to the temporary dongbari through the tie band 60 installed on the outside of the mold.

Accordingly, the load generated when the slab concrete is poured is transmitted to the flange 31 of the deck panel 30 constituting the beam form below the slab plate, and the supporting bolt 65b located below the flange 31 again. ) and at the same time transmitted to the tie band 60 through the reinforcing plate 64, it is possible to block the load during concrete pouring.

As described above, according to the beam formwork structure in which the truss girder is synthesized according to the present invention and the construction method thereof, the deck panels in which the truss girder is synthesized are joined to produce according to the size of the beam, and after inserting and fixing the internal reinforcing bars By transporting and installing to the construction site, 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 tie 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 beam formwork, it is possible to solve the disadvantage of increasing material and labor costs due to the formwork dimensions that are 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 As the generated load is transferred to the tie band through the reinforcing plate constituting the beam form below the slab plate, the load during concrete pouring can be prevented more effectively.

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

30: deck panel 31: flange
32: long hole 33: wedge pin
34: corner angle 40: truss girder
41: lattice wire 42: Sanghyeon
43a, 43b: lower current 44: jamming side
45: bolt 50: formwork
51: cotton gwi 52: beam support joists
60: tie band 61a: inclined plane
61b: horizontal bar 61c: vertical bar
62: binding piece 63: turnbuckle
64: reinforcing plate 65a: fastening bolt
65b: support bolt 70A: tie bolt
70B: Sepha Volt 71: Deacon (D-con)
72: washer 73: nut
80: rebar assembly 81: stirrup
82: rebar

Claims (5)

Deck panel 30 and,
A truss girder 40 fixedly installed in the longitudinal direction of the deck panel, and
The upper surface is opened by binding the wedge pins to the edge flange of the deck panel on which the truss girder is mounted through a corner angle, and the form 50 is assembled on the lower and left and right sides;
A tie band 60 installed on the outer rim at regular intervals along the longitudinal direction so that the abutting parts of the mold are maintained at a right angle;
Tie bolts (70A) and Sepa bolts (70B) installed between the deck panels arranged vertically on the left and right through this tie band,
A truss girder composite beam formwork structure, characterized in that it comprises a reinforcing bar assembly (80) disposed inside the formwork. According to claim 1, wherein the tie band (60) is formed with a horizontal bar (61b) and a vertical bar (61c) with an inclined surface (61a) therebetween constitutes a pair of binding pieces (62) branched to both sides, the A truss girder composite beam formwork structure, characterized in that the turnbuckle 63 is interposed between the distal end of the horizontal bar and configured to be mutually bound. The method according to claim 1, wherein the tie bolt (70A) is connected to the Sepha bolt (70B) via a decon (71), and at the same time, the front end of the Sepha bolt is fastened with a nut (73) via a washer (72). A beam formwork structure in which a truss girder is synthesized, characterized in that it is composed. A step (S1) of selling the deck panel 30 having a flange formed therein;
Step (S2) of installing the truss girder 40 in the longitudinal direction with respect to the deck panel;
After arranging the flange and corner angle of the deck panel in which the truss girder is synthesized, the wedge pin 33 is fastened to fix it at a right angle, but the deck panel is bound on three sides excluding the upper surface to produce the form 50 Step (S3) and,
A step (S4) of inserting and fixing the reinforcing bar assembly 80 in the formwork;
A step (S5) of attaching a tie bolt (70A) and a sepha bolt (70B) to the tie band (60) at regular intervals between the deck panels arranged vertically (S5);
A construction method of a truss girder synthesized beam formwork structure, characterized in that it comprises a step (S6) of mounting the beam support joists 52 at the same time as fixing the face ears 51 on the inner edge of the deck panel. 5. The method of claim 4, wherein in the installation step of the tie bolt (70A) and the Sepha bolt (70B), a decon (71) is interposed therebetween to connect and install, and at the same time, a washer (72) is interposed on the outside of the Sepha bolt to A method of constructing a truss girder composite beam formwork structure, characterized in that it further includes the step (S7) of fastening with a nut (73) in a state in close contact with the tie band (60).

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