KR20220022256A - Non-welding prefabricated deck stairs - Google Patents

Abstract

The present invention provides non-welding prefabricated deck stairs which do not require material cutting and welding work in the field, have excellent installation workability and constructability by fastening between materials, and are designed to shorten the construction period. The non-welding prefabricated deck stairs according to the present invention comprise: a plurality of stair pedestals arranged side by side with a predetermined inclination angle; a pair of stair brackets facing each other and arranged and installed to be connected to the stair pedestal in the longitudinal direction; a square pipe for deck support installed on both sides of an upper part of the stair bracket and installed at the same height as the upper surface of the stair bracket to support a horizontal deck; a horizontal deck mounted on the upper surface of the square pipe for deck support and the stair bracket; and a vertical deck mounted in the vertical direction with the horizontal deck and the stair bracket.

Description

Non-welding prefabricated deck stairs

The present invention relates to a deck staircase constructed with a deck panel, in particular, in a non-welded prefabricated deck staircase that does not require material cutting and welding work on site, has excellent installation workability and constructability by fastening between materials, and can shorten the construction period. it's about

In general, for deck stairs, a stair support (side frame) made of H-shaped steel is installed at the top of a column, a steel stair frame is installed by cutting and welding a square pipe to the stair support, and a deck panel is fixed to the steel stair frame. is constructed by In this process, manufacturing and construction of the steel stair frame requires not only a lot of cutting work and welding work for connection between the cut members, but also an additional welding work to join the steel stair frame to the stair support one by one.

As such, when a deck staircase is constructed using a conventional steel staircase frame, there is a problem in that workability and constructability are deteriorated due to a lot of cutting work and welding work of materials, and the air length is long. Therefore, on-site material cutting and welding work is unnecessary and a deck staircase that can shorten the construction period is required.

As the background technology of the present invention, as Korean Patent Registration No. 10-1845928, a 'step deck plate fastening device' has been proposed. This is to prevent deformation of the installed deck plate while simplifying the installation of the deck plate fastened at the edge of the stairs. However, in the background art, a configuration in consideration of constructability for the stair frame to which the deck plate is to be installed is not proposed.

As another technology that is the background of the present invention, as Korean Patent Registration No. 10-1414821, a 'prefabricated staircase' has been proposed. This is a staircase made of metal, which not only allows direct assembly at the job site, but also prevents pedestrians from slipping. However, the background art has a problem that cannot be applied to a prefabricated staircase that applies a deck plate because it is not a staircase using a deck plate.

Korean Patent Registration No. 10-1845928 Korean Patent Registration No. 10-1414821

An object of the present invention is to provide a non-welded prefabricated deck staircase that does not require cutting and welding of materials in the field, has excellent installation workability and constructability by fastening between materials, and can shorten the air.

Non-welding prefabricated deck stairs according to the present invention, a plurality of or more stair pedestals arranged side by side with each other having a predetermined inclination angle; a pair of stair brackets facing each other and arranged and installed to be connected to the stair pedestal in the longitudinal direction; each pipe for deck support installed on both sides of the upper part of the stair bracket and installed at the same height as the upper surface of the stair bracket to support the horizontal deck; a horizontal deck mounted on the upper surface of each pipe for supporting the step bracket and the deck; It characterized in that it comprises a; vertical deck is attached to the vertical direction and the horizontal deck to the step bracket.

In addition, the step bracket comprises: a step bracket body made of a metal plate having a certain thickness to form a substantially right-angled triangle; a plurality of side fastening fixing pieces and upper surface fastening fixing pieces bent to form a right angle to each other on the lower side of the stair bracket body in order to be fixed to the side and upper surfaces of the stair pedestal with fastening screws; a vertical deck mounting flange bent at a right angle to the step bracket body to provide a mounting surface of the vertical deck; a lower supporting jaw and a side supporting jaw of each pipe respectively formed at both corners of the upper end of the step bracket body to form a mutual right angle to support each pipe for supporting the deck; It is characterized in that it includes; an upper flange for horizontal deck installation that is bent at right angles to the upper end of the step bracket body to support the end of the horizontal deck.

In addition, a plurality of step reinforcement is further installed in each pipe for supporting the deck in order to increase the bearing capacity of the horizontal deck; The stair reinforcement is manufactured by bending a steel plate having a certain thickness and width. It is characterized in that each pipe support protrusion formed by being depressed in an L-shape is formed at the corners where they meet.

On the other hand, the construction method of the non-welded prefabricated deck stairs according to the present invention comprises the steps of installing a plurality of or more stair supports to match the inclination angle of the stairs; A step of fixedly installing step brackets so as to be arranged to be connected in the longitudinal direction on the step supports disposed on both sides of the step width; Installing each pipe for supporting the deck so as to have the same height as the upper surface of the stair bracket on both upper sides of the stair bracket; Installing by supporting the horizontal deck on the upper surface of the stair bracket and each pipe for deck support; Installing the vertical deck to form a vertical direction with the horizontal deck on the stair bracket; characterized in that it includes.

Here, after the installation of each pipe for supporting the deck, a step of further installing a plurality of stair reinforcements to increase the bearing capacity of the horizontal deck may be included.

According to the non-welded prefabricated deck stairs of the present invention, the deck stairs are completed by sequential fastening of the stair bracket, the deck support each pipe, the horizontal deck and the vertical deck, so that the installation workability and constructability are excellent. In addition, as in the prior art, since cutting and welding of each pipe in the field is unnecessary, it has the advantage of significantly shortening the air.

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit 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.
1a and 1b is an installation state diagram of the deck stairs according to an embodiment of the present invention.
Fig. 1B is a side view seen from the right side of Fig. 1A;
Figure 2 is a view of the installation state of the deck stairs seen after removing the side finishing material in Figure 1a.
3 is a state diagram in which a stair bracket, a stair reinforcing bar, and a deck support each pipe are installed on the stair pedestal in the deck stair according to an embodiment of the present invention.
Figure 4 is a partially enlarged view of Figure 2;
Fig. 5 is a cross-sectional view taken along line AA of Fig. 3;
Fig. 6 is a cross-sectional view taken along line BB of Fig. 3;
7 (a), (b), (c), (d) is a front view, a right side view, a left side view and a plan view of a stair bracket applied to the present invention.
(a), (b) and (c) of Figure 8a are a front view, a right side view and a plan view as one form of a stair reinforcement applied to the present invention.
(a), (b), and (c) of Figure 8b are a front view, a right side view and a plan view as another form of a stair reinforcement applied to the present invention.
Figure 9 (a), (b), (c) is a sequential construction flow chart of the deck stairs according to an embodiment of 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.

Deck stairs 10 according to this embodiment is installed so that the lower part is supported on the base 5 as shown in FIGS. 1 and 2 to enable horizontal adjustment. At this time, the anchor bolt 6 is installed on the foundation 5, and the anchor bolt 6 is inserted into the fixing bracket 13 installed on the lower end side of the stair support 12 of the deck step 10 after being inserted into the anchor bolt ( 6) and fixed by a pair of nuts (7) facing each other. Therefore, the horizontal adjustment of the deck step 10 is easily made according to the fastening position of the nut 7 .

On the other hand, the deck stairs 10 have a predetermined inclination angle θ, as shown in FIGS. 1 to 3 , respectively, arranged on both sides of the stairs and installed parallel to each other a plurality of step pedestals 12 and a pair of facing each other The step bracket 14 that is arranged and installed to be connected in the longitudinal direction to the step support 12, and is installed on both sides of the upper part of the step bracket 14, and is installed at the same height as the upper surface of the step bracket 14. Each pipe 16 for deck support supporting the horizontal deck 18, the horizontal deck 18 attached to the upper surface of the step bracket 14 and the square pipe 16 for deck support, and the step bracket 14 It includes a vertical deck 20 that is mounted in a vertical direction with the horizontal deck 18.

The step pedestal 12 is made of steel and has a certain length and is made of a square pipe in this embodiment, but may also be made of a C-beam steel, a A-beam steel, or the like.

As shown in Figure 6, the step bracket 14 facilitates the assembly and installation of the deck support each pipe 16, the horizontal deck 18 and the vertical deck 20. As shown in FIG. 7 , the step bracket 14 is made of a metal plate having a certain thickness and is fixed to the step bracket body 141 having a substantially right-angled triangle shape, and the side and upper surfaces of the step support 12 with a fastening screw (S). A plurality of side fastening fixing pieces 142 and upper surface fastening fixing pieces 143 formed by bending to form a right angle to each other on the lower side of the step bracket body 141, and the step bracket body 141 are bent at right angles to form The vertical deck mounting flange 144 providing the mounting surface of the vertical deck 20, and each formed at both corners of the upper end of the step bracket body 141 to form a mutual right angle to support the deck pipe 16 for supporting the deck The upper flange 147 for installing a horizontal deck that is bent at right angles to the upper end of the pipe lower support 145 and each pipe side support 146, and the step bracket body 141 to support the end of the horizontal deck 18. contains In the step bracket body 141, vertical reinforcing ribs 141a may be formed in a plurality of places for reinforcement.

On the other hand, a plurality of step reinforcement 22 may be further installed in each pipe 16 for supporting the deck in order to increase the supporting force of the horizontal deck 18 . As shown in Fig. 8a, the stair reinforcement 22 is manufactured by bending a steel plate having a certain thickness and width, and the horizontal deck support 221 for supporting the lower surface of the horizontal deck 18, the vertical deck 20 provides the mounting surface The vertical deck installation part 222, the horizontal deck support part 221 and the vertical deck installation part 222 may be formed and manufactured by being depressed in an L-shape at the corners where each pipe support 223 is formed.

Here, when the step reinforcing bar 22 is installed on the additional step stand 12 as shown in FIG. 3 , the reinforcing bar footrest 225 may be further formed at both ends as shown in FIG. 3b .

A construction method of the deck stairs 10 configured in this way will be described.

First, as shown in Fig. 9 (a), a plurality of step supports 12 are installed to match the inclination angle θ of the steps. Here, the inclination angle may be, for example, an angle of a ramp.

Then, as shown in Fig. 9 (b), the step bracket 14 is fixedly installed so as to be arranged to be connected in the longitudinal direction to the step supports 12 disposed on both sides of the step width.

At this time, the step bracket 14 is by inserting the fastening screw S into the hole 142a of the side fastening fixture 142 and the hole 143a of the upper fastening fixture 143 to the step base 12 by screwing it. Simple fixed installation.

Next, as shown in FIG. 9(c), each pipe 16 for supporting the deck is installed so as to have the same height as the upper surface of the step bracket 14 on both upper sides of the step bracket 14.

At this time, each pipe 16 for supporting the deck is formed by inserting a fastening screw (S) into the holes (145a, 146a) formed in the lower supporting jaw 145 of each pipe and the side supporting jaw 146 of the step bracket 14. It is simply fixed and installed by screwing the deck support pipe 16 to each other.

Next, as shown in FIG. 6 , the horizontal deck 18 is installed on the upper surface of the step bracket 14 and each pipe 16 for supporting the deck. At this time, according to the single width of the horizontal deck 18, the horizontal deck 18 may be installed in two rows on the stair bracket 14. At this time, both ends of the horizontal deck 18 are fixed to the step bracket 14 and the deck support each pipe 16 through the fastening screws (S). Thereafter, the vertical deck 20 is installed on the step bracket 14 to form a vertical direction with the horizontal deck 18 . The vertical deck 20 is fixed to the vertical deck mounting flange 144 of the step bracket 14 through a fastening screw (S).

On the other hand, after the installation of each pipe 16 for supporting the deck as shown in FIG. 3 , a plurality of stair reinforcing bars 22 may be further installed to increase the supporting force of the horizontal deck 18 .

The stair reinforcement 22 is installed at regular intervals in the longitudinal direction of the horizontal deck 18 . At this time, the step reinforcement 22 is fixed to the step support 12 and the deck support each pipe 16 disposed in the center through a fastening screw (S).

As such, the non-welding prefabricated deck staircase 10 according to the present invention is provided with a side fastening fixing piece 142 and an upper surface fastening fixing piece 143 on the step bracket 14, so that it is easy to assemble and install on the stair support 12 Do. In addition, since the step bracket 14 is provided with a lower support jaw 145 for each pipe and a side support jaw 146 for each pipe, it is easy to assemble and install the square pipe 16 for supporting the deck.

In addition, in the non-welded prefab deck stairs 10, the stair bracket 14, each pipe for deck support 16, the horizontal deck 18, the vertical deck 20 and the stair reinforcement 22 are all of the fastening screws during the construction process. By implementing a non-welding assembly by a fastening operation, it has the advantage of not only unnecessary cutting and welding of materials in the field, but also shortening the period of time. Of course, it is excellent in installation workability and constructability by fastening between materials.

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.

14: stair bracket
16: each pipe for deck support
18: horizontal deck
20: vertical deck
22: stair reinforcement

Claims (5)

A plurality of step pedestals 12 or more arranged in parallel with each other having a predetermined inclination angle (θ) and;
a pair of stair brackets that face each other and are arranged and installed to be connected to the stair pedestal 12 in the longitudinal direction;
Each pipe 16 for deck support installed on both sides of the upper side of the step bracket 14 and installed at the same height as the upper surface of the step bracket 14 to support the horizontal deck 18;
a horizontal deck 18 mounted on the upper surface of the step bracket 14 and each pipe 16 for supporting the deck;
Non-welding prefabricated deck stairs comprising a; vertical deck (20) that is mounted in the vertical direction with the horizontal deck (18) on the step bracket (14). The method of claim 1,
The step bracket 14 is,
a step bracket body 141 made of a metal plate having a constant thickness to form a substantially right-angled triangle;
A plurality of side fastening fixing pieces 142 and upper surface fastening fixing pieces 143 formed by being bent to form a right angle to each other on the lower side of the stair bracket body 141 in order to be fixed to the side and upper surfaces of the step pedestal 12 with fastening screws. )class;
a vertical deck mounting flange 144 bent at a right angle to the step bracket body 141 to provide a mounting surface of the vertical deck 20;
Each pipe lower support protrusion 145 and each pipe side support protrusion 146 formed at both corners of the upper end of the step bracket body 141 to form a right angle to each other to support the deck pipe 16 for supporting the deck;
Non-welding prefabricated deck stairs comprising a; an upper flange 147 for horizontal deck installation that is bent at a right angle to the upper end of the step bracket body 141 to support the end of the horizontal deck 18. The method of claim 1,
A plurality of stair reinforcements 22 are further installed in each pipe 16 for supporting the deck to increase the supporting force of the horizontal deck 18;
The step reinforcing bar 22 is manufactured by bending a steel plate having a certain thickness and width, and a horizontal deck support 221 for supporting the lower surface of the horizontal deck 18, a vertical providing a mounting surface of the vertical deck 20 Non-welding prefabricated, characterized in that the angle pipe support projection 223 formed by being depressed in an L-shape at the corner where the deck installation part 222, the horizontal deck support part 221 and the vertical deck installation part 222 meet is formed deck stairs. Installing a plurality of step pedestals 12 to match the inclination angle of the steps;
The step of securely installing the step brackets 14 so as to be arranged to be connected in the longitudinal direction to the step supports 12 disposed on both sides of the step width;
The steps of installing each pipe 16 for supporting the deck so as to have the same height as the upper surface of the step bracket 14 on both upper sides of the step bracket 14;
Installing by supporting the horizontal deck (18) on the upper surface of the step bracket (14) and each pipe (16) for supporting the deck;
Installing the vertical deck 20 so as to form a vertical direction with the horizontal deck 18 on the stair bracket 14; Construction method of non-welded prefab deck stairs comprising the. 5. The method of claim 4,
After the installation of each pipe for the deck support (16), the construction method of the non-welded prefab deck stairs, characterized in that it includes the step of further installing a plurality of stair reinforcing bars (22) in order to increase the bearing capacity of the horizontal deck (18).

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