JPH10169257A - Fire wall for gas station - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the work of executing construction by erecting fire preventive plates, formed of glass fiber reinforced cement, along the boundary of a block, and connecting and supporting the adjacent fire preventive plates in a horizontal direction. SOLUTION: A recess is formed on the ground, and rubbles are spread at the bottom of the recess. A concrete foundation 52 is provided on the rubbles. A concrete floor 53 is laid on the ground, and a concrete sill 3 is erected on the floor 53 along a boundary. Force skeleton columns 2 are then erected on the sill 53 with suitable spaces in a horizontal direction. Grooves 1b of flanges 1a of adjacent fire preventive plates 1 formed of glass fiber reinforced cement are fitted to the outer periphery of the force skeleton column 2 from both sides. Plural stages of bolts and nuts are horizontally inserted through the relative flange parts 1a and the force skeleton column 2 so as to connect the adjacent fire preventive plates 1 in the horizontal direction. The foundation can thereby be made small compared to fire preventive plates made of concrete, so that work execution is facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire fence for a gas station installed upright at a boundary between a gas station section and an adjacent area, in order to prevent a fire generated at the gas station from spreading to buildings and the like adjacent to the gas station. About. In detail, underground tanks for oil storage, refueling equipment,
The present invention relates to a fire wall of a gas station that is stretched over a boundary between an office building, a gas station section provided with inspection / repair facilities, and an adjacent land.

[0002]

2. Description of the Related Art As shown in FIG. 1, a fueling station has an underground tank 10 for storing petroleum, a fueling device 20, an office building 30,
In addition, inspection and repair facilities are provided.If a leaked oil ignites and a fire occurs, a fire protection fence is installed at the boundary with the adjacent land to prevent the spread of fire to buildings, etc. adjacent to the gas station. 40 are required to be established.

[0003] As a conventional fire protection fence 40, one having the following configuration is known. That is, when the fire protection fence 40 is erected, as shown in FIG. 7 and FIG. Concrete foundation 52
(About 900 mm in height) is buried. Next, a rectangular parallelepiped (400 mm in length, 75 mm in width, 200 mm in height) concrete block 41 is stacked on the concrete foundation 52 in a vertical flat plate shape (2 m in height). Reference numeral 53 is a concrete floor. In addition,
As shown in FIG. 8, for example, reinforced concrete columns 42 are erected at intervals of about 3.2 meters in the horizontal direction.

[0004] As another conventional example of a fire protection fence, as shown in FIG. 9, a plurality of power bone columns 61 erected at appropriate intervals on a base 3, and a horizontal bridge between the power bone columns 61, 61. Iron plates 63, 63 are stretched on both sides of the formed body edge 62,
In order to prevent water leakage between the three, the power column 61 and the iron plates 63, 6
3 is known in which a cap plate 64 covering the upper edge of the skeleton 3 is laid on the upper end surface of the trabecular column 61.

[0005]

However, the fire protection fence in which the above-mentioned conventional concrete blocks 41 are piled up requires a lot of time for stacking the concrete blocks 41 and hardening the joints. There is. Further, since the concrete block 41 has a large weight, the concrete foundation 52 supporting the concrete block 41 becomes large in proportion to the weight of the concrete block 41, resulting in an increase in cost.

On the other hand, in the fire protection fence on which the iron plates 63, 63 are stretched, the heat conductivity of the iron plate 63 is high, and the heat generated by the flame is easily transmitted to the outer surface of the fence. However, they have the disadvantage that they are easily collapsed and lack fire resistance.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a fire protection fence for a gas station which facilitates construction work and reduces costs.

[0008]

In order to achieve the above object, a fire protection fence of a gas station according to claim 1 is provided in which a fire protection plate (1) erected along a boundary of a section is made of glass fiber reinforced cement. The adjacent fire prevention plates (1, 1) are connected and supported in the horizontal direction. Here, the glass fiber reinforced cement is GRC (Glass Fiber Reinforced Cemen).
t).

The fire protection fence of the gas station according to claim 2 is
A fire panel (1) erected along the boundary of a section is made of glass fiber reinforced cement and is adjacent to a fire panel (1,1)
Are horizontally connected and supported via a force column (2) sandwiched between their vertical end faces.

[0010] Further, the fire protection fence of the gas station according to claim 3 is:
In addition to the configuration of the second aspect of the present invention, in addition to the flange portions (1a, 1a,
A vertical groove (1b, 1b) is formed in 1a), and the power column (2) is fitted into the opposing groove (1b, 1b), and is clamped so as to be wrapped in the fire prevention plate (1,1). In this state, the adjacent fire prevention plates (1, 1) are opposed to the opposite flange portions (1a, 1).
a) and a bolt-nut (H) inserted horizontally through the power column (2).

[0011] The fire protection fence of the gas station according to claim 4 is
In addition to the configuration of the third aspect of the present invention, the power column (2)
It is fixed on a concrete base (3) erected along the section via a base bolt (V) inserted into a flange (2a) integrally connected to a lower end. The symbols in parentheses described in the means for solving the above-described problems correspond to the symbols described in the drawings and the embodiments of the invention described later.

According to the first aspect of the present invention, since the fire prevention plate is made of glass fiber reinforced cement having high strength, low thermal conductivity and excellent fire resistance even if it is thin, the following effects are exhibited. First, since the weight is lighter than that of the conventional concrete block, the foundation is small, the construction period is shortened, and the cost is reduced. Further, since the heat shielding property is higher and the fire resistance is higher than that of the iron plate, the heat generated by the flame is hardly transmitted to the outer surface of the fence, and even when heated to a high temperature, it is difficult to deform or collapse.

According to the second aspect of the present invention, in addition to the effects of the first aspect of the present invention, the adjacent fire prevention plates are firmly connected and supported because they are connected via the trabecular column.

According to the third aspect of the present invention, in addition to the functions and effects of the second aspect of the present invention, the power pillar for firmly connecting and supporting the adjacent fire prevention plates is wrapped by the fire prevention plates. Even if the ossicles are heat shielded by the fireproof plate and the outer surface is heated to a high temperature, they do not deform or collapse.

According to the fourth aspect of the present invention, in addition to the functions and effects of the third aspect of the present invention, the lower end of the power column is not in contact with the ground (floor surface). Even if there is a slight inundation, the trabecular bone is hardly flooded. Therefore, it is hard to rust and has a long life.

[0016]

Embodiments of the present invention will be described with reference to the drawings. The same parts as those in the conventional example are denoted by the same reference numerals, and description thereof will be omitted. 2 is a partially cutaway perspective view showing a fire wall of a gas station according to the embodiment of the present invention, FIG. 3 is an enlarged sectional view taken along line XX of FIG. 2, and FIG. 4 is a line YY of FIG. FIG. 5 is an enlarged sectional view taken along the line ZZ of FIG.

The basic configuration of the embodiment of the fire protection fence of the gas station according to the present invention will be described.
Adjacent fire protection plates 1 and 1 made of glass fiber reinforced cement are connected in a horizontal direction through a power column 2 sandwiched between their vertical end surfaces.

More specifically, first, the fire prevention plate 1
Flange portions 1 integrally connected to both vertical ends of
Vertical grooves 1b, 1b are formed in at least the lower part of a, 1a. Moreover, the cross-sectional shape of each groove 1b is formed in a rectangular shape so that half of the power bone column 2 having a rectangular cross-section can be fitted. Therefore, in a state where the opposed flange portions 1a, 1a of the adjacent fire prevention plates 1, 1 abut against each other, the trabecula 2 is in the groove 1
b, 1b and wrapped by the fire protection plates 1, 1.

The thickness of the fire prevention plate 1 and the height of the flange portion 1a are, for example, 35 mm and 65 mm, respectively, which are suitable for satisfying the fire prevention standards described later, but are not necessarily limited thereto. Not something. Further, the power column 2 may be solid or hollow. Further, the cross-sectional shape is not limited to a rectangle, but may be a circle.

Next, the adjacent fire prevention plates 1, 1 are horizontally mounted on the opposed flanges 1 a, 1 a and the power column 2 while the power columns 2 are fitted in the grooves 1 b, 1 b facing each other. The bolts and nuts H are inserted and fastened for connection. In this state, the trabecular pillar 2 is wrapped by the adjacent fire prevention plates 1 and 1. The trabecular column 2 has a rectangular flange 2a integrally connected to the lower end thereof.
Is fixed to the base 3 via the foundation bolt V inserted through the base 3.

Here, the glass fiber reinforced cement is GRC.
(Glass Fiber Reinforced Cement), 19
Developed in the UK in the 70's, 2-5 cm cut into 2-4 cm in brittle cement mortar
% Glass fiber blended and reinforced, inexpensive,
Further, as shown in FIG. 6, unlike an asbestos slate or the like, when a certain load is exceeded, the elastic region enters a plastic region from an elastic region, and the amount of deformation (deflection) with respect to an external load (for example, bending load) increases. It is widely used as a lightweight and thin interior / exterior material with high tenacity, high strength and high toughness.

At the time of construction, as shown in FIG. 2, first, the ground is dug shallowly, and a split stone (not shown) is laid at the bottom of the formed recess. Next, a concrete foundation 52 having a thickness of about 150 mm is provided on the split stone, and a concrete floor 53 is provided on the ground. The floor 5
On 3, the concrete base 3 is erected along the boundary.

Thereafter, the power columns 2 are erected and fixed at appropriate intervals in the horizontal direction on the base 3, and the flanges 1 a, 1 a of the fireproof plates 1, 1 adjacent from both sides of the power columns 2 are fixed. Groove 1
b and 1b are externally fitted. Finally, when a plurality of bolt nuts H are horizontally inserted into the opposed flange portions 1a, 1a and the power column 2, and fastened, the adjacent fire prevention plates 1, 1 are connected and supported in the horizontal direction.

The fire protection fence of the gas station constructed as described above is inexpensive because most of the members can be mass-produced in factories. Moreover, since the fire prevention plate 1 is made of glass fiber reinforced cement having high strength, low thermal conductivity and excellent fire resistance even if it is thin as described above, it is lighter in weight than the conventional concrete block. Therefore, since the foundation can be reduced, the construction period can be shortened, and the cost can be reduced. In addition, since it has a higher heat shielding property and is superior in fire resistance as compared with an iron plate, even if it is exposed to a flame, it has an advantage that heat generated by the flame is hardly transmitted to the outer surface of the fence, and it is difficult to deform or collapse.

Further, the adjacent fire plates 1, 1 are firmly connected,
The supporting trabecula 2 is wrapped by the fire prevention plates 1 and 1, and is shielded by the fire prevention plates 1 and 1, so that even if the outer surface is heated to a high temperature, it does not deform or collapse. Therefore, for example, those in which the thickness of the fire prevention plate 1 and the height of the flange portion 1a are 35 mm and 65 mm, respectively, sufficiently satisfy the condition that the fire prevention plate 1 functions as a fire wall for at least 1 hour or more. . Further, the fire prevention plate 1 is excellent in corrosion resistance, and the lower end of the trabecular pillar 2 does not contact the ground (floor surface).
Hardly floods. Therefore, it is hard to rust and has a long life.

[0026]

As described above, according to the first aspect of the present invention, since the fire prevention plate is made of glass fiber reinforced cement,
The foundation can be made smaller than that of a conventional concrete block. Therefore, the construction period can be shortened, and the cost can be reduced. In addition, since the heat shielding property is higher than that of the iron plate and the fire resistance is excellent, the heat generated by the flame is hardly transmitted to the outer surface of the fence, and even when heated to a high temperature, it is difficult to deform or collapse.

According to the second aspect of the present invention, in addition to the operation and effect of the first aspect of the present invention, the adjacent fire prevention plates are firmly connected and supported because they are connected via the power column. According to the third aspect of the present invention, in addition to the function and effect of the second aspect of the present invention, the power bone for firmly connecting and supporting the adjacent fire prevention plates is wrapped by the fire prevention plate. The pillars are heat shielded by the fire protection plate and will not deform or collapse even if the outer surface is heated to a high temperature. According to the fourth aspect of the invention, in addition to the functions and effects of the third aspect, the ground (floor surface)
Even if there is a slight inundation, the trabecular column hardly floods, so it is hard to rust and has a long life.

[Brief description of the drawings]

FIG. 1 is a partially broken perspective view showing a gas station.

FIG. 2 is a partially cutaway perspective view showing a fire wall of a gas station according to the embodiment of the present invention.

FIG. 3 is an enlarged sectional view taken along line XX of FIG. 2;

FIG. 4 is an enlarged sectional view taken along line YY of FIG. 2;

FIG. 5 is an enlarged sectional view taken along the line ZZ of FIG. 2;

FIG. 6 is a graph showing bending properties of glass fiber reinforced cement.

FIG. 7 is a sectional view showing a conventional example.

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9 is a partially cutaway perspective view showing another conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fire-fence 1a Flange 1b Groove 2 Power column 2a Flange 3 Base 10 Underground tank 20 Refueling device 30 Building 40 Fire-fence 41 Concrete block 42 Reinforced concrete column 51 Split stone 52 Concrete foundation 53 Floor 61 Power column 62 Body edge 63 Iron plate 64 Kasagi plate V Foundation bolt H Bolt nut

Claims (4)

[Claims] Claims: 1. A fire panel erected along a boundary of a section is made of glass fiber reinforced cement, and adjacent fire panels are:
A fire fence at a gas station that is connected and supported horizontally. 2. A fire panel standing along a boundary of a section is made of glass fiber reinforced cement, and adjacent fire panels are:
A fire fence at a gas station, which is horizontally connected and supported via a power column sandwiched between its vertical end faces. 3. A vertical groove is formed in a flange portion integrally connected to each of the vertical ends of the fire prevention plate, and the power bone is fitted in the opposing groove and wrapped in the fire prevention plate. 3. The structure according to claim 2, wherein, in the clamped state, the adjacent fire prevention plates are connected in the horizontal direction via bolt nuts horizontally passed through the opposing flange portions and the power bone columns. The fire wall of the gas station described in. 4. The power column is fixed on a concrete base erected along the section via a base bolt inserted into a flange integrally connected to a lower end. The fire protection fence of a gas station according to claim 3.