JP3821296B2 - Assembled fire retardant and its construction method - Google Patents

Description

  The present invention relates to an assembly-type fire retardant constructed around a site that handles dangerous materials, such as a gas station and a gas filling station, and a construction method thereof.

  In places where dangerous parts are handled, such as gas stations and gas filling stations, it is required by law to surround the outer periphery of the vehicle except for the surface where vehicles enter and exit, with fire retardants in order to prevent the spread of fire with adjacent buildings. ing. This fire pit is made by assembling panels of reinforced concrete or incombustible material.

  Reinforced concrete fire pits are made by placing concrete into the formwork assembled at the site to make a foundation, and after a few days, the concrete is solidified. Then, the formwork is removed, and the concrete is placed into the formwork assembled on the foundation. It is set up to make fire pits, and after a few days, the concrete is solidified and then removed from the formwork. As described above, the reinforced concrete fire retardant has the disadvantage that it takes a lot of labor and days at the site, and the construction period is long, and there is a problem that the cost is increased. In addition, reinforced concrete fire pits have a problem that they are heavy and weak in earthquake resistance.

  In the fire pit assembled with non-combustible panels, concrete was cast into a formwork assembled on site to create a foundation, and after several days the concrete solidified, the formwork was removed and the column was erected on the foundation It is constructed by attaching a panel. Thus, in the fire retardant assembling the non-combustible panel, the fire retardant is made from the panel, so the construction period of the fire retardant is shortened and the cost can be reduced. And since the fire pit is comprised with the panel, it can reduce in weight and an earthquake resistance increases. However, since the foundation is made by placing concrete in a formwork assembled at the site, there is a problem that the construction period is long and the cost of the foundation portion increases.

JP 58-164868 Patent No. 3019246

  The present invention has been made in view of the above, and it is an object of the present invention to provide an assembly-type fire retardant that can shorten the construction period, reduce the cost, can reduce the weight of the fire retardant, and can improve the earthquake resistance, and a construction method thereof. .

  The assembly-type fire retardant (A) of the present invention has a rod-shaped anchor (2) driven into the groove (1), a horizontal portion (31) and a horizontal portion (31), and a long hole at the upper end portion. A horizontal L-shaped steel base (3) having a vertical portion (32) formed with (5A), the horizontal portion (31) of which is connected to the anchor (2), and the horizontal L-shaped By screwing a nut into a bolt inserted into the long hole (5A) of the vertical part (32) of the steel frame foundation (3) and the long hole (5B) of the lower end part of the steel frame column (4), the steel frame foundation is obtained. It is composed of a steel strut (4) connected to (3) and a panel (7) attached to the steel strut (4) with bolts and nuts, and the steel foundation (3) is in the groove (1) It is fixed with concrete (6).

  Moreover, the construction method of the assembly-type fire protection fence (A) of the present invention drives a rod-shaped anchor (2) into the groove (1) dug at a constant interval, and the anchor (2) has a horizontal portion (31) and A horizontal L-shaped steel foundation (3) having a vertical portion (32) standing from the horizontal portion (31) and having a long hole (5A) formed at the upper end is connected to the horizontal L-shaped steel frame. A bolt is inserted into the long hole (5A) of the foundation (3) and the long hole (5B) at the lower end of the steel column (4) and the nut is screwed to connect the steel column (4) to the steel frame (3). Then, concrete (6) is placed in the groove (1) to fix the steel frame (3), and the panel (7) is attached to the steel column (4) with bolts and nuts.

1) Since the foundations and fire pits manufactured at the factory are assembled on site, the construction period at the site can be shortened.
2) The foundation and fire pit can be mass-produced at the factory, and the cost can be reduced.
3) Since a formwork for placing concrete is not used, a formwork is not required and construction costs can be reduced.
4) Since the fire pit is composed of panels, the fire hood can be lightened and the earthquake resistance can be improved.
5) Since the fire pit is composed of panels, it can be made a commercial panel with a good appearance.
6) By replacing the panel, it is always possible to make a beautiful fire pit.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a perspective view showing a filling station B in which an assembled fire retardant of the present invention is implemented, FIGS. 2 to 5 are diagrams showing an assembled fire retardant A and its construction method, and FIG. 6 is an assembled fire retardant. FIG.

  As shown in FIG. 1, the assembly fire retardant A is built around the site R of the gas station B except for the road R side.

  As shown in FIGS. 2 and 3, grooves 1, 1,... Are dug at regular intervals in a place where fire pits around the site T are made. The groove 1 is determined by the shape of the panel described later, for example, with an interval L1 = about 200 cm. Further, the shape of the groove 1 is, for example, a length L2 = 200 cm, a width L3 = 50 cm, and a depth L4 = 50 cm, and is determined by the shape of the steel foundation described later.

  As shown in FIG. 4, a horizontal L-shaped steel foundation in which a plurality of, for example, two anchors 2 are driven into the groove 1 at intervals, and a vertical portion 32 is erected on a horizontal portion 31 on the anchor 2. 3 is attached by welding or bolts. A plurality of elongated holes 5A are provided at the upper end of the vertical portion 32 of the steel frame 3 and a plurality of elongated holes 5B are provided at the lower end of the steel column 4 so as to be orthogonal to each other, so that the steel frame 3 and the steel column 4 are connected. 5 (see FIG. 5), and a plurality of bolt insertion holes 5 for attaching a panel to be described later are provided in the steel column 4.

  The anchor 2 has a length L5 = 120 cm, for example, and the steel foundation 3 has a length L6 = 100 cm, for example. Moreover, the steel-frame support | pillar 4 is length L7 = 200cm grade, for example, and is decided by the shape of the panel mentioned later.

  As shown in FIG. 6, the concrete 6 is placed by temporarily fixing the groove 1, and the anchor 2 and the steel foundation 3 are fixed. Since the casting of the concrete 6 is merely poured into the groove 1, a formwork is unnecessary.

  As shown in FIGS. 7 and 8, when the concrete 6 is hardened, the bolts 8 are inserted into the long holes 5A and 5B, and the steel foundation 3 and the steel support 4 are fixed with the nut 10 (see FIG. 5). Then, the panel 7 is attached to the steel column 4. The panel 7 is attached to the steel column 4 by inserting a bolt 8 through the hole 5 opened in the steel column 4, inserting the bolt 8 through the mounting hole 9 of the panel 7, and screwing a nut 10 into the bolt 8. The panel 7 is fixed to the steel frame support 4.

  The panel 7 is made of a non-combustible material such as glass fiber reinforced cement and glass fiber reinforced plastic, and is light in weight because of its thin plate thickness. The length L8 of the panel 7 is 2 m or less and can be transported by a normal truck. The width varies depending on the height of the fire pit to be built, but the width L9 is about 2 m.

  The panel 7 may be attached to both sides of the steel column 4 or may be attached to only one side.

  In this way, the connecting portion of the panel 7 attached to the steel column 4 is caulked with a nonflammable caulking material 11. The rebar I is placed on the site T including the top surface of the concrete 6 to be placed, the concrete 12 is placed thereon, the site T is concrete paved, and the assembly-type fire prevention fence A is completed. To do.

  The fire pit A thus constructed has the following configuration.

  In the site T, a steel foundation 3 attached to a plurality of anchors 2 is arranged with concrete 6, and a steel column 4 is erected and fixed by the steel foundation 3. A plurality of the steel struts 4 are erected in the range where the fence A is to be constructed. Therefore, the groove 1 may be continuously excavated long, or one or two steel struts 4 may be fixed and spaced apart. You may drill and drill.

  Panels 7 are attached to both sides of the plurality of steel struts 4 erected in this way by bolts 8 and nuts 10 as fixing means. Mounting holes 9 through which the bolts 8 are inserted are drilled at appropriate positions on the panel 7. Note that the position of the fixing means can be selected as appropriate in relation to the steel column 4. Further, an insertion hole (not shown) may be drilled in the steel column 4 as necessary. In this way, the extremely strong fire retardant A can be assembled to the steel column 4.

  The earthquake resistance of the fire pit surrounding the outer periphery of the place where the dangerous part is handled can be improved, and the construction cost can be reduced.

The perspective view of the gas station which implemented the assembly-type fire retardant of this invention. The top view which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the side which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the side which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the front which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the side which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the front which shows the construction method of an assembly-type fire prevention fence. Sectional drawing seen from the side of an assembly-type fire prevention fence.

Explanation of symbols

A ... Assembling fire retardant B ... Gas station T ... Site R ... Road 1 ... Groove 2 ... Anchor 3 ... Steel frame foundation 4 ... Steel column 5A, 5B・ ・ Long holes 6, 12 ... Concrete 7 ... Panels 8 ... Bolts 9 ... Holes 10 ... Nuts 11 ... Caulking

Claims (2)

A rod-shaped anchor (2) driven into the groove (1), a vertical portion (32) standing from the horizontal portion (31) and the horizontal portion (31) and having a long hole (5A) formed at the upper end portion A horizontal L-shaped steel foundation (3) whose horizontal part (31) is connected to the anchor (2), and a vertical part (32) of the horizontal L-shaped steel foundation (3). The steel strut (4) connected to the steel foundation (3) by screwing a nut into the bolt inserted into the long hole (5A) and the long hole (5B) at the lower end of the steel strut (4) And a panel (7) attached to the steel column (4) with bolts and nuts, and the steel foundation (3) is fixed in the groove (1) with concrete (6). Assembling fire retardant. A rod-shaped anchor (2) is driven into the groove (1) dug at a constant interval, and the anchor (2) is erected from the horizontal portion (31) and the horizontal portion (31), and a long hole (5A ) Is connected to the horizontal L-shaped steel foundation (3) having the vertical portion (32), and the long hole (5A) and the steel column (4) of the horizontal L-shaped steel foundation (3) are connected. Insert a bolt into the long hole (5B) at the lower end of the screw and screw the nut into it, connect the steel column (4) to the steel foundation (3), and place concrete (6) in the groove (1) A method for constructing a fire retardant assembly comprising fixing a steel foundation (3) and attaching a panel (7) to a steel column (4) with bolts and nuts.

Images