JP5231205B2 - Steel sheet base material - Google Patents

Description

  The present invention relates to a steel plate base material, and more particularly, to a steel plate base material that prevents a flame from entering the indoor side by forming a fireproof outer wall structure together with the fireproof tile by attaching a number of fireproof tiles to the surface side. .

  In recent years, in buildings such as residential buildings, in order to effectively prevent the intrusion of flame from the outside to the inside of the building, it has been desired to provide fire resistance performance to the outer wall of the building. For example, as fire resistance performance of quasi-fire resistance of 45 minutes, there is no jet of flame that continues for more than 10 seconds to the non-heated side, no flame that continues for more than 10 seconds on the non-heated side, cracks through which the flame passes, etc. Various fire-resistant outer wall structures having desired quasi-fire resistance performance based on a vertical heating test based on IS0834 similar to the Minister's certification test have been developed.

  In these conventional fireproof outer wall structures, for example, tiles with incombustible performance are used as surface materials, and siding materials and mortar are used as the base material, and a dry construction method in which tiles are hooked on siding materials, and tiles are bonded to mortar. The mainstream is the one formed by attaching the tile to the outer wall part by wet adhesion method, etc., but in the conventional fireproof outer wall structure, the fire resistance performance of the outer wall is secured by the fire resistance performance of the base material by siding material or mortar. Therefore, it takes a lot of labor and cost to impart desired fire resistance to these base materials.

  In addition, a tile is a member having a very long service life, whereas a siding material or an adhesive has a short service life of, for example, about 30 years as compared with the service life of a tile. When using siding or mortar as a base material in a building that is used for a long period of time, such as a house, it is necessary to repair the base material or replace the tiles. Will occur.

On the other hand, using a tile-arranged substrate made of extruded products of metal such as aluminum as a base material, the tile is fixed to the outer wall surface of the building in a stable state over the long term, and the tile can be easily attached and detached at the time of renovation or dismantling What was made possible is disclosed (for example, refer patent document 1).
JP 2006-214219 A

  However, since the tile-arranged substrate of Cited Document 1 is a metal product, it is considered that it can exhibit excellent fire resistance performance with a fixed tile, but it is costly because it is an extrusion-molded product. , The thickness becomes considerable, and handling becomes inconvenient. Further, the tile-arranged substrate of the cited document 1 is not intended to improve the fire resistance performance of the outer wall, and therefore, a special device is required to use it as a base material for the fire resistant outer wall structure.

  The present invention provides a steel plate base material that can exhibit excellent fire resistance easily and inexpensively without causing mismatch in terms of long support by forming a fire-resistant outer wall structure in combination with fire-resistant tiles. Aim to do.

  The present invention is attached along the outer wall base surface of the outer wall of a building, and a large number of fireproof tiles are hung on the surface side to form a fireproof outer wall structure together with the fireproof tiles so that a flame invades the indoor side. A steel plate base material to prevent, a covering plate arranged to cover the base surface of the outer wall, a plurality of first rail plates and a plurality of first rail plates and a plurality of first rail plates which are alternately attached to the surface side of the covering plate. A second rail plate, the first rail plate is provided with an oblique hooking piece for locking an intermediate locking recess provided on the back surface of the refractory tile from diagonally above at an upper end portion, and A lower contact step portion that closely contacts the lower end portion of the rear surface of the fireproof tile is provided at the lower end portion, and the second rail plate includes an upper contact step portion that contacts the upper end portion of the rear surface of the fireproof tile. The intermediate locking recess on the back surface of the refractory tile is locked to the diagonal hook piece, the lower end portion of the back surface of the refractory tile is brought into close contact with the lower contact step portion, and the upper end portion of the back surface of the refractory tile is When the refractory tile is applied in a state of being in close contact with the upper contact step portion, a large number of the refractory tiles are separated from the covering plate through the lower contact step portion and the upper contact step portion, respectively. The above-mentioned object is achieved by providing a steel sheet base material that is attached in such a state.

  In the steel sheet base material of the present invention, the covering plate is provided with a protruding groove extending in the vertical direction and protruding toward the back surface side, and the back surface of the protruding groove is brought into close contact with the outer wall base surface. It is preferable that a distance is maintained between the covering plate and the outer wall base surface at a portion other than the projection groove.

  Further, in the steel sheet base material of the present invention, a tile receiving recess is provided at the lower end portion of the first rail plate by bending the lower end portion of the lower adhesion stepped portion into a U shape, It is preferable that the lower end mounting protrusion of the refractory tile is positioned and mounted on the tile receiving recess in a state where the intermediate locking recess on the back surface is locked to the oblique hooking piece.

  Furthermore, in the steel plate base material of the present invention, it is preferable that a portion ahead of the tip of the tile receiving recess is folded downward further outward to form a folded overlap portion.

  Furthermore, in the steel sheet base material of the present invention, it is preferable that the lower end of the folded overlap portion protrudes downward from the lower surface of the tile receiving recess to form a drop-off preventing piece.

  In the steel sheet base material of the present invention, it is preferable that the oblique hooking piece of the first rail plate is provided with a water drain notch at a position corresponding to the protruding groove of the covering plate.

  Furthermore, the steel plate base material of the present invention includes a plurality of protrusion grooves of the covering plate on the tile receiving recess portion of the first rail plate and the upper contact step portion of the second rail plate. It is preferable that an intermediate water drain notch is formed in each intermediate portion.

  Furthermore, in the steel plate base material of the present invention, the steel plate forming the covering plate, the first rail plate, and the second rail plate may be a gallium steel plate having a thickness of 0.15 to 3.5 mm. preferable.

  According to the steel sheet base material of the present invention, by forming a fireproof outer wall structure in combination with a fireproof tile, it is possible to easily and inexpensively exhibit excellent fireproof performance without causing a mismatch in terms of long support. it can.

  As shown in FIG.1 and FIG.2, the steel-plate base material 11 which concerns on preferable one Embodiment of this invention is combined with the refractory tile 12, and it is in the part of the outdoor side of the outer wall 30 in a wooden housing building as a building, for example. The fire-resistant outer wall structure 10 to be installed is formed, and the fire-resistant outer wall structure 10 can effectively prevent a flame from entering the outer wall 30 from the outside to the inside of the building. It is intended to demonstrate performance.

  That is, the steel plate base material 11 of this embodiment is attached along the outer wall base surface 13 of the outer wall 30 of the building, and a large number of fireproof tiles 12 are hooked on the surface side, and the fireproof outer wall structure together with these fireproof tiles 12. 10 is a base material that prevents a flame from entering the indoor side, and is provided so as to cover the outer wall base surface 13 and to extend parallel to the surface side of the cover plate 14. A plurality of first rail plates 15 and a plurality of second rail plates 16 that are alternately attached to each other. The first rail plate 15 is provided with a diagonal hooking piece 18 for locking an intermediate locking recess 17 provided on the back surface of the refractory tile 12 from an oblique upper side, and a lower end portion of the back surface of the refractory tile 12 is closely attached. A lower contact step portion 20 is provided at the lower end portion, and the second rail plate 16 is provided with an upper contact step portion 21 that closely contacts the upper end portion of the back surface of the refractory tile 12. Then, the intermediate locking recess 17 on the back surface of the refractory tile 12 is locked to the oblique hooking piece 18, the lower end portion of the back surface of the refractory tile 12 is brought into close contact with the lower contact step portion 20, and the upper end of the rear surface of the refractory tile 12. By attaching the refractory tile 12 in a state where the portion is in close contact with the upper contact stepped portion 21, a large number of the refractory tiles 12 are respectively coated with the covering plate through the lower contact stepped portion 20 and the upper contact stepped portion 21. 14 is attached in a state of being separated from 14.

  Further, in the present embodiment, the covering plate 14 is provided with a protruding groove 22 (see FIG. 3) that extends in the vertical direction and protrudes to the back surface side. By being attached in close contact with 13, the space s 1 is maintained between the covering plate 14 and the outer wall base surface 13 at portions other than the protruding grooves 22 (see FIG. 1).

  Furthermore, in the present embodiment, a tile receiving recess 24 is provided at the lower end portion of the first rail plate 15 by bending the lower end portion of the lower adhesion stepped portion 20 into a U-shape. The lower end mounting projection 23 of the lower refractory tile 12 is positioned and mounted on the tile receiving recess 24 in a state where the intermediate locking recess 17 is locked to the oblique hooking piece 18 of the first rail plate 15.

  In the present embodiment, the outer wall 30 of the building preferably constitutes a load-bearing wall, and is supported by a frame member (not shown) such as a column or a beam, and the outdoor side and the indoor side of these frame members. A load bearing surface 25 is attached to the surface (see FIG. 1), and a moisture permeable waterproof sheet 26 is laid on the surface of the load bearing surface 25 on the outdoor side. The surface of the moisture permeable waterproof sheet 26 is used as the outer wall base surface 13, and the steel plate base material 10 of the present embodiment is attached.

  In the present embodiment, an interior finishing material or the like is appropriately attached to the load bearing surface material (not shown) attached to the indoor side surface of the frame member, and the outdoor side load bearing surface material 25 and the indoor strength strength. A heat insulating material or the like is appropriately disposed in the hollow portion between the face material. Further, in the present embodiment, as the load-bearing face material 25 on the outdoor side, a plurality of front side belts arranged in parallel at intervals are provided, preferably having the same configuration as the panel member described in Japanese Patent Application Laid-Open No. 2000-160732. A cross panel formed by joining and integrating a narrow plate and a plurality of back-side strip-shaped narrow plates arranged in parallel at intervals is used.

  And the steel plate base material 11 of this embodiment is a member which comprises the fireproof outer wall structure 10 installed in the part of the outer side of the outer wall 30 with many fireproof tiles 12, as shown also in FIG.3 and FIG.4. , Preferably a gallium steel plate having a thickness of about 0.15 to 3.5 mm, more preferably a thickness of about 0.4 to 0.6 mm, and a covering plate 14, a first rail plate 15, and a second rail. And plate 16.

  The covering plate 14 is made of a gallium steel plate having a thickness of 0.4 mm, for example, and a plurality of unit plates formed in a horizontally-long rectangular shape having a width of about 1820 mm and a height of about 420 mm, for example, For example, the outer wall base surface 13 is attached so as to cover the entire peripheral wall by arranging the peripheral portions in a vertical and horizontal manner while overlapping and joining with a width of about 5 mm. In addition, it is preferable that a unit plate overlaps and joins the peripheral part in the part in which outer wall frame members, such as a pillar and a stud, were provided, for example.

  In addition, the cover plate 14 is provided with a protruding groove 22 that extends in the vertical direction and protrudes toward the back side by bending or pressing the gallium steel plate, for example, having a depth of about 4 mm and a width of about 13 mm. A plurality of protrusions having a substantially isosceles trapezoidal cross section are provided at a pitch of about 227.5 mm in the lateral direction. By attaching the covering plate 14 with the back surface of the protruding groove 22 being in close contact with the outer wall base surface 13 of the moisture permeable waterproof sheet 26, a space s1 that allows air to flow between the covering plate 14 and the outer wall base surface 13 is maintained. (See FIG. 1).

  Then, on the surface of the covering plate 14, a plurality of first rail plates 15 and a plurality of second rail plates 16 are extended in parallel in the lateral direction by a joining method such as spot welding or press caulking. In this case, the upper and lower directions are alternately joined and integrated.

  The first rail plate 15 is formed by, for example, bending or pressing a gallium steel plate having a thickness of 0.6 mm. The first rail plate 15 is provided with an oblique hooking piece 18 by bending an upper portion of the intermediate flat plate portion 27 tightly bonded to the surface of the covering plate 14 obliquely forward at an angle of 45 °, for example, Moreover, the lower contact | abutting level | step-difference level part 20 which closely_contact | adheres the lower end part 19a of the back surface of the refractory tile 12 is pushed along the surface parallel to the intermediate flat plate part 27 by pushing the lower part of the intermediate flat plate part 27 forward through a slope part. Arranged and provided.

  In the present embodiment, a tile receiving recess 24 is formed at the lower end of the first rail plate 15 by bending the lower end portion of the lower adhesion stepped portion 20 into a U-shape. The lower end mounting projection 23 of the refractory tile 12 to be hooked on the steel plate base material 11 is mounted.

  Furthermore, in this embodiment, the part ahead of the front-end | tip of the tile receiving recessed part 24 is return | folded further outward toward the downward direction, and the folding | returning superposition | polymerization part 28 is formed. Further, the lower end of the folded overlap portion 28 protrudes downward from the lower surface of the tile receiving recess 24 to form a drop-off preventing piece 29.

  Since the folded overlap portion 28 is formed outside the tile receiving recess 24, the tile receiving recess 24 can be effectively reinforced. Further, the lower end of the folded overlap portion 28 protrudes downward from the lower surface of the tile receiving recess 24 and the drop prevention piece 29 is formed, so that the lower surface of the tile receiving recess 24 and the upper end surface of the lower refractory tile 12 are formed. It is possible to effectively avoid the leaf spring clip 31 to be described later, which is attached between them, from dropping from the attachment position.

  Furthermore, in the present embodiment, the diagonal hooking piece 18 of the first rail plate 15 is provided with a drain notch 32 at a position corresponding to the protruding groove 22 of the covering plate 14. Since the drainage notch 32 is provided at a position corresponding to the protruding groove 22 of the oblique hooking piece 18, water existing between the steel plate base material 11 and the refractory tile 12 is passed through the protruding groove 22. Can be drained smoothly.

  The second rail plate 16 is formed by, for example, bending or pressing a gallium steel plate having a thickness of 0.4 mm. The upper part which sticks the upper end part 19b of the back surface of the fireproof tile 12 to the 2nd rail plate 16 by pushing the upper part of the lower flat plate part 33 tightly joined to the surface of the coating | coated plate 14 ahead through a slope part. The close contact step portion 21 is provided along a plane parallel to the lower flat plate portion 33.

  In the present embodiment, the second rail plate 16 abuts the upper end edge of the upper contact stepped portion 21 with the lower surface corner portion of the tile receiving recess 24 of the first rail plate 15 on the covering plate 14 side from below. Thus, the first rail plate 15 and the first rail plate 15 are alternately attached in the vertical direction.

  Further, in the present embodiment, the portion of the upper contact step 21 of the second rail plate 16 and the portion of the tile receiving recess 24 of the first rail plate 15 are provided on the oblique hooking piece 18 of the first rail plate 15. The plurality of drainage cutout portions 32 and 35 are arranged in the middle portions of the plurality of drainage cutout portions 32 and the plurality of projection grooves 22 provided in the covering plate 14. By passing through these intermediate water drain notches 34 and 35, it becomes possible to drain the water existing between the steel plate base material 11 and the refractory tile 12 more smoothly.

  The fireproof tile 12 constituting the fireproof outer wall structure 10 together with the steel sheet base material 11 of the present embodiment is a tile member made of ceramics, for example, and has a horizontally long rectangular planar shape as shown in FIG. It has a thickness. The refractory tile 12 is formed so that the front surface and the back surface are flat surfaces, and an intermediate member in which an upper surface 17a is cut obliquely upward at an angle of 45 °, for example, at an intermediate portion in the vertical direction of the back surface. A stop recess 17 is formed.

  Further, a substantially half portion on the back surface side of the upper end portion of the refractory tile 12 protrudes upward as a back surface side upper end protrusion portion 36, and a substantially half portion on the front surface side of the lower end portion is downward as a surface side lower end protrusion portion 37. Protruding. Furthermore, a lower end mounting protrusion having a lower protrusion height than the front surface side lower end protrusion 37 with a locking groove 38 interposed between the lower end of the rear surface side of the fireproof tile 12 and the front surface side lower end protrusion 37. 23 is provided. As described above, the lower end mounting protrusion 23 is mounted on the tile receiving recess 24 of the first rail plate 15 when the fireproof tile 12 is hooked on the steel plate base material 11.

  In the present embodiment, the refractory tile 12 penetrates between the side end surfaces on both sides in the lateral direction, and the through holes 39 are formed. When the refractory tiles 12 are continuously arranged in the lateral direction, The through holes 39 of the plurality of refractory tiles 12 communicate with each other in a straight line in the lateral direction. The through holes 39 of the refractory tiles 12 that are continuously arranged in the lateral direction communicate in a straight line in the lateral direction, so that an air flow passage is secured in the middle portion of the refractory tile 12 and the fire resistance effect by the refractory outer wall structure 10. Can be further improved.

  In order to form the fireproof outer wall structure 10 using the steel plate base material 11 of the present embodiment, the steel plate base material 11 is covered with the outdoor side load bearing surface 25 so as to cover the outer wall base surface 13 using, for example, a fixing screw. After mounting, the fireproof tiles 12 are arranged on the surface of the steel plate base material 11 to which the first rail plate 15 and the second rail plate 16 are integrally joined.

  That is, each refractory tile 12 has its intermediate locking recess 17 locked to the oblique hooking piece 18 of the first rail plate 15, the lower end portion 19 a on the back surface is in close contact with the lower contact step portion 20, and the upper end portion on the back surface The fireproof outer wall structure 10 can be easily formed by a simple operation without requiring a lot of labor by hooking the respective 19b in close contact with the upper contact stepped portion 21 of the second rail plate 16. Will be. Here, since the upper surface 17 a of the intermediate locking recess 17 of each fireproof tile 12 is locked along the upper surface of the diagonally hooked piece 18 of the first rail plate 15 of the steel plate base material 11, the weight of the fireproof tile 12. Thus, a force in a direction of pressing the lower end portion 19a and the upper end portion 19b on the back surface against the lower close contact step portion 20 and the upper close contact step portion 21 is loaded, whereby the lower end portion 19a and the upper end portion 19b of each refractory tile 12 are loaded. Can be brought into close contact with the lower contact stepped portion 20 and the upper contact stepped portion 21 in a stable state.

  Further, in the present embodiment, as shown in FIGS. 3 and 1, between the lower surface of the tile receiving recess 24 of the first rail plate 15 and the upper end surface of the rear surface side upper end protrusion 36 of the lower refractory tile 12. The leaf spring clip 31 is attached through the interposition. Since the leaf spring clip 31 is interposed between the lower surface of the tile receiving recess 24 and the upper end surface of the lower refractory tile 12, the intermediate latching recess of each refractory tile 12 is caused by the elastic biasing force of the leaf spring clip 31. The force which presses 17 to the diagonal hook piece 18 of the 1st rail plate 15, and the force which presses the lower end part 19a and upper end part 19b of the back surface of the fireproof tile 12 against the lower contact | adherence level | step difference part 20 or the upper contact | adherence level | step difference part 21 are loaded. In other words, each refractory tile 12 can be attached to the steel plate base material 11 in a more stable state.

  And according to the steel plate base material 11 of the present embodiment having the above-described configuration, by forming the fireproof outer wall structure 10 in combination with the fireproof tile 12, there is no mismatch in terms of long support, and excellent fire resistance. The performance can be easily and inexpensively exhibited.

  That is, in this embodiment, since the steel plate base material 11 is used as a base material for attaching a large number of refractory tiles 12 to the outer wall 30, it has excellent fire resistance performance due to the steel plate base material 11 and can be used for a long time. Depending on the service life, the long support can be used even in buildings that are used for a long period of time, such as 3rd generation houses, effectively matching fireproof tiles 12 that have the same excellent fire resistance performance and long service life. It becomes possible to easily provide the fireproof outer wall structure 10 in a possible state.

  Moreover, the steel plate base material 11 of the present embodiment is preferably formed using a plate member obtained by subjecting a thin gallium steel plate having a thickness of about 0.15 to 3.5 mm to bending or pressing. Compared with a metal extrusion-molded product, it is easy to process and can be formed at low cost, and the entire thickness can be made thinner than that of the extrusion-molded product. Furthermore, many fireproof tiles 12 have the intermediate locking recesses 17 locked to the oblique hooking pieces 18 of the first rail plate 15, the lower end portion 19a of the back surface is in close contact with the lower contact step portion 20, and the upper end of the back surface The portion 19b is attached in a state of being in close contact with the upper contact step portion 21 of the second rail plate 16 so as to maintain a state separated from the covering plate 14 via the lower contact step portion 20 and the upper contact step portion 21. Therefore, air flows between the fireproof tile 12 and the covering plate 14, and the fireproof performance by the fireproof outer wall structure 10 can be further improved.

  The present invention is not limited to the above-described embodiment, and various modifications can be made. For example, the steel plate base material can be formed using various other steel plates other than the gallium steel plate. In addition, it is not always necessary to provide a drain notch in the oblique hooking piece of the first rail plate, the upper contact step portion of the second rail plate, or the like.

It is principal part sectional drawing explaining the structure of the fireproof outer wall structure formed using the steel plate base material which concerns on preferable one Embodiment of this invention. It is a partial notch schematic front view explaining the structure of the fireproof outer wall structure formed using the steel plate base material which concerns on preferable one Embodiment of this invention. It is a principal part exploded perspective view explaining the structure of the fireproof outer wall structure formed using the steel plate base material which concerns on preferable one Embodiment of this invention. It is a principal part perspective view explaining the structure of the fireproof outer wall structure formed using the steel plate base material which concerns on preferable one Embodiment of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Fireproof outer wall structure 11 Steel plate base material 12 Fireproof tile 13 Outer wall base surface 14 Cover plate 15 1st rail plate 16 2nd rail plate 17 Intermediate | middle latching recessed part 18 Diagonal hook piece 19a Lower end part 19b of the back surface of a fireproof tile Upper end portion 20 on the back surface Lower contact step portion 21 Upper contact step portion 22 Projection groove 23 Lower end mounting protrusion 24 Tile receiving recess 30 Outer wall

Claims (8)

Steel plate base that is attached along the outer wall base surface of the outer wall of the building, and has a large number of fireproof tiles on the surface side to form a fireproof outer wall structure together with the fireproof tiles to prevent the intrusion of the flame on the indoor side Material,
A cover plate arranged to cover the outer wall base surface, and a plurality of first rail plates and a plurality of second rail plates that extend in parallel to the surface side of the cover plate and are alternately attached. And
The first rail plate is provided with a diagonal hook piece for locking an intermediate locking recess provided on the back surface of the refractory tile from diagonally above at an upper end portion, and a lower portion for closely contacting the lower end portion of the back surface of the refractory tile. A close-up step portion is provided at a lower end portion, and the second rail plate is provided with an upper close-up step portion that closely contacts the upper end portion of the back surface of the refractory tile,
The intermediate locking recess on the back surface of the refractory tile is locked to the diagonal hook piece, the lower end portion of the back surface of the refractory tile is brought into close contact with the lower contact step portion, and the upper end portion of the back surface of the refractory tile is When the refractory tile is applied in a state of being in close contact with the upper contact step portion, a large number of the refractory tiles are separated from the covering plate through the lower contact step portion and the upper contact step portion, respectively. Steel plate base material that can be attached in the finished state.   The covering plate is provided with a protruding groove that extends in the vertical direction and protrudes to the back surface side. By attaching the back surface of the protruding groove in close contact with the base surface of the outer wall, other than the protruding groove. The steel plate base material according to claim 1, wherein a gap is maintained between the covering plate and the outer wall base surface at a portion.   The lower end portion of the first rail plate is provided with a tile receiving recess by bending the lower end portion of the lower adhesion stepped portion into a U-shape, and the intermediate locking recess on the rear surface of the fireproof tile is inclined. 3. The steel sheet base material according to claim 1, wherein a lower end mounting protrusion of the refractory tile is positioned and mounted on the tile receiving recess while being locked to the hooking piece.   The steel plate base material according to claim 3, wherein a portion of the tile receiving recess ahead of the front end is folded back further outward to form a folded overlap portion.   The steel plate base material according to claim 4, wherein a lower end of the folded overlapping portion protrudes downward from a lower surface of the tile receiving recess to form a drop-off preventing piece.   The steel plate base material according to any one of claims 2 to 5, wherein the oblique hooking piece of the first rail plate is provided with a water drain notch at a position corresponding to the protruding groove of the covering plate.   The tile receiving recess portion of the first rail plate and the upper close-contacting step portion of the second rail plate are disposed at intermediate portions of the plurality of protruding grooves of the covering plate, respectively. The steel sheet base material according to any one of claims 2 to 6, wherein a water drain notch is formed.   The steel plate foundation according to any one of claims 1 to 7, wherein the steel plate forming the covering plate, the first rail plate, and the second rail plate is a gallium steel plate having a thickness of 0.15 to 3.5 mm. Wood.

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