JP2005207153A - Fireproof wall structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To carry out a built up work of a fireproof wall in a short time. <P>SOLUTION: The fireproof wall structure 10 is constituted of a concrete foundation 12 embedded in the site, a fixing base 14 fixed to the upper end of the foundation 12, posts 16 erected on the upper end of the foundation 12 at every specified distance, a plurality of fireproof wall plates 18 inserted between the posts 16, connection members 20 connecting between the upper ends of the posts 16 and a plurality of upper ends of the fireproof wall plates 18. These three sheets of fireproof wall plates 18a-18c are moved from the inclined state to the vertical state while they are in the connected state that the recessed parts 38 and the protruded parts 40 are fitted. In this way, since the fireproof wall structure 10 can be assembled concurrently on the fixing base 14 in the assembled condition of the fireproof wall plates 18a-18c, it is possible to shorten the assembling time and enhance the working efficiency in the execution site. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a fire wall structure, and more particularly to an assembly-type fire wall structure in which a plurality of fire wall plates are arranged between columns.

  For example, it is obliged to surround a site of a facility such as a gas station that handles combustible fuel with a fire wall to prevent the spread of fire to the surroundings. The fire wall is mainly made of concrete, and after assembling the formwork at the construction site, there is a method of pouring the concrete into the formwork.

  In this method of pouring concrete into the mold, it takes time to assemble and disassemble the mold, and it takes time for the concrete to dry, so the work efficiency is poor.

  In order to solve such a problem, a fire wall structure has been developed in which a siding board is attached to a metal frame formed in a frame shape instead of a concrete fire wall (see, for example, Patent Document 1). The siding board is formed into a plate shape using a cementitious raw material and a fibrous raw material as main raw materials, cured and hardened, and is mainly used as an exterior material for buildings.

This siding board fire wall is manufactured in advance at the factory, so there is no need to consider the manufacturing time at the construction site, and after transporting it to the construction site by means of transportation such as trucks, heavy equipment such as cranes are used. Unload and assemble.
JP-A-9-287322

  In the conventional firewall structure described above, the work is carried out by unloading the fire wall transported to the construction site by truck or the like from the truck bed with a crane, moving the fire wall lifted in a vertical state to an arbitrary installation location, and operating the crane. The worker and the worker for fixing the fire wall at a predetermined installation place cooperate with each other to perform the installation work.

For this reason, in the conventional type, the crane is operated to perform the installation work, so it is not only necessary to perform the work carefully, but also it takes time to align the lifted fire wall with the foundation. There is a problem that it takes.
Then, this invention aims at providing the fire wall structure which solved the said subject.

The invention according to claim 1 is formed on a foundation fixed to a site, pillars standing on the foundation at predetermined intervals, a fire wall board provided between the pillars, and a lower part of the fire wall board. A first engaging portion, a second engaging portion formed on an upper portion of the foundation and engaged with the first engaging portion, an upper end of the support column, and the plurality of fire wall plates. A coupling member formed to be coupled to the upper end, and coupling between the upper end of the support column and the upper ends of the plurality of fire wall plates;
It is provided with.

  Invention of Claim 2 is a fire wall structure of the said Claim 1, Comprising: Either one of the said 1st engaging part and the said 2nd engaging part is made into a recessed part shape, The said 1st Any one of the engagement portion and the second engagement portion is formed in a protrusion shape that fits into the recess-shaped engagement portion.

  Invention of Claim 3 is the fire wall structure of the said Claim 1 or 2, Comprising: The said fire wall board is the recessed part formed in the perpendicular direction at one side, and the perpendicular direction at the other side. And a protrusion fitted into a recess of another fire wall plate.

  The invention according to claim 4 is the fire wall structure according to claim 2, further comprising a spacer member inserted between the fire wall plate and the support column.

  Invention of Claim 5 is the fire wall structure in any one of the said Claim 1 thru | or 3, Comprising: The said fire wall board affixes a steel plate on the flame | frame formed in frame shape, It is characterized by the above-mentioned. And

  According to invention of Claim 1, a fire wall board is inserted between support | pillars, The 1st engaging part formed in the lower part of a fire wall board is engaged with the 1st engaging part provided in the foundation. By connecting the upper end of the column and the upper end of the plurality of fire wall plates with a connecting member, the fire wall plate can be unloaded from the truck bed without using a heavy machine such as a crane, and the worker can lighten the fire wall The board can be easily aligned with the foundation. Therefore, it is possible to shorten the assembly time and increase the work efficiency at the construction site.

  According to a second aspect of the present invention, one of the first engaging portion and the second engaging portion is formed in a recessed shape, and the other of the first engaging portion and the second engaging portion is formed in a recessed portion. Since it is made into the shape of the protrusion fitted to the engaging portion of the shape, the mounting position of the fire wall plate with respect to the foundation can be easily aligned, and the coupling strength between the foundation and the fire wall plate can be ensured.

  According to the third aspect of the present invention, the recess is formed so as to extend in the vertical direction on one side of the fire wall plate, and the protrusion fitted in the recess of the other fire wall plate is extended in the vertical direction on the other side. Because it is formed, it can be assembled to hold the left and right sides of the fire wall plate with a simple operation.

  According to the invention of claim 4, the spacer member is inserted between the fire wall plate and the support column so that the concave portion of the other side plate is fitted to the protrusion on the other side of the fire wall plate. Thus, the fire wall plates can be assembled one by one, and the gap formed by sliding the last fire wall plate can be closed by the spacer member.

  Further, according to the invention of claim 5, since the steel plate is attached to the frame in which the fire wall plate is formed in a frame shape, it can be a lightweight fire wall plate having a space formed therein, Workers can easily align with the foundation with a lightweight fire wall, and can reduce assembly time and increase work efficiency at the construction site.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is an exploded perspective view showing Embodiment 1 of the fire wall structure according to the present invention. 2 is a longitudinal sectional view showing an assembled state of the fire wall structure shown in FIG.
As shown in FIGS. 1 and 2, the fire wall structure 10 includes a concrete foundation 12 embedded in a site, a fixed base 14 fixed to the upper end of the foundation 12, and an upper end of the foundation 12 at predetermined intervals. It is comprised from the support | pillar 16 standing upright, the some fire wall board 18 inserted between the support | pillars 16, and the connection member 20 which connects between the upper end of the support | pillar 16, and the upper end of the some fire wall board 18. FIG.

  The foundation 12 has an L-shaped cross-section, and has a horizontal portion 12a embedded in the ground and a vertical portion 12b that stands up in the vertical direction from the horizontal portion 12a. And the upper end 12c of the vertical part 12b protrudes in the predetermined height position from the ground 21, and is extended and formed so that the boundary line with an adjacent ground may be met.

  The fixed base 14 fixed to the upper end 12 c of the foundation 12 is fixed so as to extend in the extending direction of the upper end 12 c, and the total length thereof corresponds to the separation distance between the columns 16. Further, a second engaging portion 14 a formed in a protruding shape is formed on the upper surface of the fixing base 14 so as to extend in the longitudinal direction. The fixing base 14 is fixed to the upper end 12 c with the fastening bolt 24 by screwing a fastening bolt 24 into an anchor 22 embedded in the upper end 12 c of the foundation 12.

  The column 16 is fixed in a state where the lower end portion is inserted into the mounting hole of the upper end 12c of the foundation 12, and for example, the length of the two or three fire wall plates 18 arranged side by side is set up as a separation distance. Provided. Therefore, the interval between the columns 16 is an interval in which two or three fire wall plates 18 are inserted.

  The connecting member 20 includes an upper surface 20a that covers the upper ends of the support column 16 and the fire wall plate 18, a first contact portion 20b that contacts the front surface of the support column 16 and the fire wall plate 18 from the upper surface 20a, and a support member 16 from the upper surface 20a. A second abutting portion 20c that abuts against the rear surface of the fire wall 18; Accordingly, the connecting member 20 is formed so as to sandwich the front and rear surfaces of the support column 16 and the fire wall plate 18 by the first contact portion 20b and the second contact portion 20c. The first contact portion 20b and the second contact portion 20c are fixed to the front and rear surfaces of the support column 16 and the fire wall plate 18 by fastening members 26 such as bolts or nails.

Here, the structure of the fire wall board 18 is demonstrated with reference to FIG. 3 (A)-(C).
As shown in FIGS. 3A to 3C, the fire wall plate 18 is a panel in which a steel plate 32 is fixed to the front and rear surfaces of a frame 30 made of a metal frame by spot welding or the like. Therefore, although the fire wall plate 18 is a rectangular panel in appearance, a space 34 (a region surrounded by a broken line in FIG. 3A) is formed inside. Therefore, the fire wall plate 18 has fire resistance and is lighter than the siding board, and can be transported and assembled without using a heavy machine such as a crane.

  In addition, the fire wall plate 18 has a concave first engaging portion 36 that engages with the second engaging portion 14 a of the fixed base 14 at the lower portion. The first engaging portion 36 is formed of a groove extending in the X direction and is not easily subjected to external force, and thus is not easily damaged during transportation. Further, since the first engagement portion 36 can be slid in the X direction while being engaged with the second engagement portion 14a, the position can be easily adjusted during the assembly operation.

  Moreover, the fire wall plate 18 is formed to extend in the vertical direction (Y direction) on the left side and in the vertical direction (Y direction) on the right side, and is formed in the recesses 38 of the other fire wall plates 18. And a protrusion 40 to be fitted. Therefore, since the recess 38 is formed by a groove extending in the vertical direction (Y direction), the recess 38 can slide in the vertical direction (Y direction) with respect to the protrusion 40.

Here, a method for assembling the fire wall structure 10 configured as described above will be described with reference to FIGS.
As shown in FIG. 4, for example, when three fire wall plates 18 a to 18 c are inserted between the columns 16, the fire wall plate 18 c located at the right end has a configuration in which the protrusion 40 is removed. Yes.

  First, the horizontal portion 12a of the foundation 12 is embedded in the boundary with the adjacent ground, and the fixing base 14 and the column 16 are fixed to the upper end 12c of the foundation 12. Then, the three fire wall plates 18a to 18c are combined in a state where the adjacent recesses 38 and the protrusions 40 are fitted.

  Next, as shown in FIG. 5, the first engaging portion 36 provided at the lower part of the fire wall plates 18 a to 18 c is lifted in an oblique state in accordance with the second engaging portion 14 a of the fixed base 14. At this time, if there are at least two workers, the lower portions of the three fire wall plates 18a to 18c can be placed on the fixed base 14 without using a crane.

  Then, the three fire wall plates 18a to 18c remain in a connected state in which the concave portion 38 and the protrusion 40 are fitted to each other from the inclined state (shown by a solid line in FIG. 5) to the vertical state (shown by a broken line in FIG. 5). ). When the three fire wall plates 18a to 18c are in the vertical state, the first engagement portion 36 is fitted into the second engagement portion 14a of the fixed base 14 and the position in the front-rear direction is restricted. As shown in FIG. 4, the movement in the X direction is restricted by the columns 16 arranged on both sides.

  Thereafter, the connecting member 20 is fitted to the upper end of the support column 16 and the upper end of the fire wall plates 18a to 18c, and the first contact portion 20b and the second contact portion 20c of the connection member 20 are connected to the support column 16 and the fire wall. The front and rear surfaces of the plates 18a to 18c are sandwiched. And the 1st contact part 20b and the 2nd contact part 20c are fixed with the fastening member 26 with respect to the front-back surface of the support | pillar 16 and the fire wall board 18a-18c. Thus, the upper end of the column 16 and the upper ends of the fire wall plates 18 a to 18 c are connected via the connecting member 20.

  This completes the assembly work of the fire wall plates 18a to 18c. Thus, since the fire wall structure 10 can be assembled to the fixed base 14 at the same time in a state where the fire wall plates 18a to 18c are combined, it is possible to shorten the assembly time and increase the work efficiency at the construction site. It becomes possible. Moreover, in the fire wall structure 10, since an operator can easily align with the foundation 12 by holding the lightweight fire wall plates 18a to 18c, it can be assembled relatively easily.

FIG. 6 is an exploded perspective view showing Embodiment 2 of the fire wall structure according to the present invention. 7 is a longitudinal sectional view showing an assembled state of the fire wall structure shown in FIG. 6 and 7, the same reference numerals are given to the same portions as those in the first embodiment, and the description thereof is omitted.
As shown in FIGS. 1 and 2, the fire wall structure 50 includes a concrete foundation 12 embedded in a site, a fixed base 14 fixed to the upper end of the foundation 12, and an upper end of the foundation 12 at predetermined intervals. The pillars 16 standing upright, the plurality of fire wall plates 18 inserted between the pillars 16, the spacer member 52 inserted in the gap between the fire wall plate 18 and the pillars 16, the upper end of the pillars 16 and the plurality of fire preventions. It is comprised from the connection member 20 which connects between the upper ends of the wall board 18. As shown in FIG.

  The spacer member 52 has a recess 52 a that fits with the protrusion 40 of the fire wall plate 18 on the side surface. Since the recess 52a fits with the protrusion 40 of the fire wall plate 18, each of the plurality of fire wall plates 18 can be shared, and the protrusion 40 contacts the side surface of the column 16 as in the first embodiment. It is not necessary to delete the protrusion 40 so as not to contact.

Here, a method for assembling the fire wall structure 50 configured as described above will be described with reference to FIGS.
As shown in FIG. 8 (A), the first fire wall plate 18a is inserted between the columns 16, and the first engaging portion 36 provided at the lower part of the fire wall plate 18a is connected to the first base plate 14 of the fixed base 14. In accordance with the two engaging portions 14a, the state is moved from the inclined state (indicated by the solid line in FIG. 5) to the vertical state (indicated by the broken line in FIG. 5). When the fire wall 18a is in a vertical state, the first engagement portion 36 is fitted into the second engagement portion 14a of the fixed base 14, and the position in the front-rear direction is restricted. Then, the fire wall plate 18a is slid to the left while being guided by the second engaging portion 14a of the fixed base 14, and the fire wall plate 18a is brought into contact with the side surface of the column 16 standing on the left side.

  Next, as shown in FIG. 8B, the first engagement portion 36 provided at the lower portion of the second fire wall 18b is aligned with the second engagement portion 14a of the fixed base 14. The fire wall plate 18b is moved from an inclined state (indicated by a solid line in FIG. 5) to a vertical state (indicated by a broken line in FIG. 5). As a result, the first engagement portion 36 of the fire wall 18b is fitted into the second engagement portion 14a of the fixed base 14, and the position in the front-rear direction is restricted. Then, the fire wall plate 18b is slid leftward while being guided by the second engaging portion 14a of the fixed base 14, and is brought into contact with the side surface of the fire wall plate 18a.

  Next, as shown in FIG. 8C, the third fire wall plate 18c also has the first engaging portion 36 connected to the second of the fixing base 14 in the same manner as the second fire wall plate 18b. After being engaged with the engaging portion 14a, it is slid leftward and brought into contact with the side surface of the fire wall 18b.

  Next, as illustrated in FIG. 8C, the spacer member 52 is inserted from above into the gap 54 between the third fire wall plate 18 c and the column 16. Since the spacer member 52 has a recess 52a that fits with the protrusion 40 of the fire wall plate 18 on the side surface, the protrusion 40 of the fire wall plate 18c fits into the recess 52a and moves in the front-rear direction of the fire wall plate 18c. As well as movement in the X direction.

  Thus, in the fire wall structure 10, since one worker can hold the lightweight fire wall plates 18a to 18c one by one and easily align with the fixed base 14, it can be assembled relatively easily. it can. Moreover, in the fire wall structure 50, since the several fire wall board 18 can be assembled | attached to the fixing stand 14 one by one, it becomes possible to shorten assembly time and to improve the working efficiency in a construction site.

FIG. 10 is a longitudinal sectional view showing a modified example of the fixed base 14. FIG. 11 is a perspective view showing a modified example of the fixing base 14.
As shown in FIGS. 10 and 11, the fixing base 60 is formed in a flat plate shape, and is provided with through holes 62 through which the fastening bolts 24 are inserted at predetermined intervals. The fastening bolt 24 is threaded into the anchor 22 with a male screw 24b inserted through the through-hole 62 in a state where the circular columnar head 24a protrudes from the upper surface of the fixed base 14. Therefore, the fastening bolt 24 functions as a fastening means for fixing the fixing base 60 to the upper portion 12 c of the foundation 12, and the head 24 a protruding from the upper surface of the fixing base 60 is the first engaging portion 36 of the fire wall 18. It functions as a second engaging portion that engages with the.

  Therefore, the fire wall plate 18 is guided in the X direction by being guided by the heads 24a of the plurality of fastening bolts 24 projecting from the upper surface of the fixing base 60 at predetermined intervals with the first engaging portion 36 provided at the lower part. And the movement in the front-rear direction is restricted.

  Since the fixing base 60 does not need to be integrally provided with the second engaging portion 14a unlike the fixing base 14 described above, the head 24a of the fastening bolt 24 also serves as the second engaging portion. Cost can be kept low.

FIG. 12 is a perspective view showing an example of a structure using the fire wall structure of the present invention.
As shown in FIG. 12, the structure 70 is a building of a kerosene sales office that sells kerosene, for example, and needs to have a fireproof structure. And the structure 70 is comprised so that the entrance 71 may be provided in the front, and the structure similar to the fire wall structure 10 mentioned above is used for the other wall part.

  The structure 70 includes the inlet 71, a rectangular base 72 (72a to 72d), a fixed base 74 (74a to 74d) fixed to the upper end of the base 72 (72a to 72e), and a base 72. (72a-72d) pillars 76 (76a-76d) erected at each corner, a plurality of fire wall plates 78 (78a-78d) inserted between the pillars 76 (76a-76d), and a plurality of fire preventions Connecting members 80 (80a to 80d) for connecting the upper ends of the wall plates 78, and L-shaped connecting members 82 for connecting the upper ends of the columns 76 (76a to 76d) and the ends of the connecting members 80 (80a to 80d). (82a-82d) and the roof member 86 fixed to the beam 84 laid horizontally on the upper part of the fire wall board 78.

  In addition, the fire wall board 78a arrange | positioned above the inlet_port | entrance 71 is formed in short height dimension, and is hold | maintained by the connection member 80a.

  Since the fire wall structure of the present invention can be applied to such an assembly type structure, not only fuel such as kerosene and gasoline but also other flammable gases and flammable chemicals are stored. Therefore, it is possible to shorten the assembly time of the structure for improving the work efficiency at the construction site.

  In the above-described embodiment, the fire wall surrounding the site of the gas station has been taken as an example. However, the present invention is not limited to this, and can naturally be applied to walls of other facilities.

It is a disassembled perspective view which shows Example 1 of the fire wall structure which becomes this invention. It is a longitudinal cross-sectional view which shows the assembly state of the fire wall structure shown in FIG. It is a figure for demonstrating the structure of the fire wall board. 4 is a plan view for explaining an assembly method of the fire wall structure 10. FIG. 4 is a side view for explaining an assembly method of the fire wall structure 10. FIG. It is a disassembled perspective view which shows Example 2 of the fire wall structure which becomes this invention. It is a longitudinal cross-sectional view which shows the assembly state of the fire wall structure shown in FIG. It is process drawing for demonstrating the assembly method of the fire wall structure. It is a top view for demonstrating the assembly method of the fire wall structure 50. FIG. It is a longitudinal cross-sectional view which shows the modification of the fixing stand 14. FIG. It is a perspective view which shows the modification of the fixing stand. It is a perspective view which shows an example of the structure using the fire wall structure of this invention.

Explanation of symbols

10, 50 Fire wall structure 12, 72 (72a to 72d) Base 14, 74 (74a to 74d) Fixing base 14a Second engagement portion 16, 76 (76a to 76d) Post 18, 78 (78a to 78d) Fire prevention Wall plates 20, 80 (80a to 80d) Connecting member 24 Fastening bolt 26 Fastening member 30 Frame 32 Steel plate 34 Space 36 First engagement portion 38 Recess 40 Projection 52 Spacer member 54 Gap 60 Fixing base 62 Through hole 70 Structure 82 (82a to 82d) coupling member 86 roof member

Claims (5)

A foundation fixed on the site;
Pillars that stand on the foundation at predetermined intervals;
A fire wall plate provided between the columns;
A first engaging portion formed at a lower portion of the fire wall plate;
A second engagement portion formed on the foundation and engaged with the first engagement portion;
A connecting member that is formed to be coupled to the upper end of the support column and the upper end of the plurality of fire wall plates, and connects between the upper end of the support column and the upper ends of the plurality of fire wall plates;
A fire wall structure characterized by comprising: The fire wall structure according to claim 1,
Either one of the first engagement portion and the second engagement portion has a concave shape, and either one of the first engagement portion and the second engagement portion has the concave shape. A fire wall structure characterized in that it has a protruding shape that fits into a part. The fire wall structure according to claim 1 or 2,
The fire wall plate has a recess formed in one side extending in the vertical direction;
A protrusion that extends in the vertical direction on the other side and is fitted into a recess of another fire wall plate,
A fire wall structure characterized by comprising: The fire wall structure according to claim 3,
A fire wall structure comprising a spacer member inserted between the fire wall plate and the support column. The fire wall structure according to any one of claims 1 to 4,
The fire wall structure is formed by attaching a steel plate to a frame formed in a frame shape.

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