JP4698620B2 - Deck plate - Google Patents

Description

  The present invention relates to a deck plate used in architecture, civil engineering, vehicles, and other structures.

  Conventionally, in construction, civil engineering, vehicles, and other structures, for example, a folded plate material formed by bending a metal plate, such as a panel for constituting an outer wall structure disclosed in Patent Document 1, has been widely used. Yes.

  In particular, folding plate materials used for roof plate materials, roof base materials, floor plate materials, and the like include flat roofs and deck plates.

  FIG. 6 is a perspective view showing a configuration of a conventional flat roof 100. The flat roof 100 is a folded plate material formed by bending a metal plate, and is composed of flat surfaces 101a to 101c and support portions 102a to 102c as shown in FIG.

  The flat surfaces 101a to 101c are flat portions (hereinafter sometimes referred to as “flat surfaces”) that constitute the upper portion of the flat roof 100. Further, the support portions 102a to 102c are formed by weaving a part of a metal plate so that the cross-sectional shape of the flat roof 100 is a T-shaped structure, and the flat surfaces 101a to 101c. It is for supporting.

  On the other hand, the deck plate is also referred to as a floor steel plate, and is a wide band steel corrugated with a reasonable shape to maintain strength. The deck plate is usually processed by cold rolling. The deck plate is a folded plate material that is often used in high-rise buildings and the like as a concrete slab formwork because no support is required. There are various types of deck plates, such as those with deep grooves, shallow ones, pitch sizes and special grooves.

  The deck plate is also an industrial standard name of standard number G3352 (2003) in Japanese Industrial Standard (JIS: Japanese Industrial Standard: hereinafter referred to as “JIS”; see Non-Patent Document 2). The deck plate by JIS is considered to be a cold-formed deck plate used for construction, civil engineering, vehicles, and other structures.

  Next, an example of a conventional deck plate and a roof base structure using the same will be described with reference to FIGS. 7 (a) and 7 (b). FIG. 7A is a cross-sectional view for explaining a conventional roof base structure 200, and FIG. 7B is a cross-section for explaining a cross-sectional shape of the deck plate 201 constituting the roof base structure 200. FIG.

  As shown in FIG. 7A, the roof foundation structure 200 shows a plurality of deck plates 201a to 201c (in FIG. 7A, the case of three deck plates 201 is illustrated. These three deck plates are provided for the sake of convenience.) Are connected to each other in a row.

  Next, the structure of the deck plate 201 will be described with reference to FIG. As shown in FIG. 7B, the cross-sectional shape of the deck plate 201 has a structure in which convex portions 202 and concave portions 203 are alternately arranged regularly and draw a wave. By adopting such a structure, the strength of the deck plate formed by processing the normal steel plate is increased as compared with the normal steel plate.

  Here, various parameters for defining the strength characteristics of the deck plate will be described with reference to FIG. Height H is the height of the deck plate. The unit width B is a width with respect to the direction in which the unevenness of the deck plate of one structural unit forming the cross-sectional shape of the deck plate is adjacent, and is usually given by the interval between the adjacent convex portions in the deck plate.

The on-groove dimension b1 is a distance between adjacent convex portions. The sub-groove dimension b2 is the width in the direction in which the unevenness on the bottom surface of the recess is adjacent. The display thickness t is the thickness of the metal plate that constitutes the deck plate. The effective product width W ₀ is the total width in the direction in which the unevenness of one deck plate is adjacent. The strength characteristics of the deck plate are determined by setting these parameters to reasonable values and the properties of the material constituting the deck plate.

  By the way, as shown in FIG. 8, in the technical field of the roof plate structure, in order to enhance the heat insulation effect and the waterproof effect, a heat insulation plate is laid on the roof plate or the roof base material, and a waterproof sheet is further provided thereon. Many construction methods have been adopted.

  FIG. 8 is a perspective view for explaining an outline of a roof plate structure 300 using a conventional deck plate having a heat insulation and waterproof effect enhanced by the construction method.

  As shown in FIG. 8, the roof plate structure 300 includes a roof base 301 composed of a plurality of deck plates, a heat insulating plate 302 provided on the top of the roof base 301, and a waterproof sheet provided on the top of the heat insulating plate 302. 303.

According to the roof plate structure 300 according to the construction method, by using the heat insulating plate 302 that is a heat insulating material, the heat insulating effect is enhanced, the air conditioning cost of the air conditioner used indoors is reduced, and the high energy saving efficiency is realized. Can do. Moreover, by using the waterproof sheet 303, it is excellent in weather resistance, for example, it is possible to exhibit excellent waterproofness against sugamore in a heavy snowy area.
JP 2005-336999 A (released on December 8, 2005) “Japanese Industrial Standards (JIS G3352: 2003) Deck Plate”, Japanese Industrial Standards homepage, http://www.jisc.go.jp/app/pager?id=16914, revised in 2003

  By the way, in the construction method shown in FIG. 8, first, the work of laying the heat insulating plate 302 on the upper portion of the roof base 301 is required, and then the work of laying the waterproof sheet 303 on the upper portion of the heat insulating plate 302 is necessary. The work of laying the waterproof sheet 303 requires an operator to stand on the heat insulating plate 302 and perform the work.

  For this reason, when a deck plate having a concave portion and a convex portion is used as the roof base 301 as in the roof plate structure 300 shown in FIG. 8, the heat insulating plate is caused by the work in the construction method or the weight of snow. There is a problem that 302 is broken.

  Therefore, the top surface of the roof base 301 is preferably as flat as possible. From such a viewpoint, it is preferable that a flat surface such as the flat roof 100 shown in FIG.

  However, in the flat roof 100, as described above, the flat surfaces 101a to 101c are usually formed by weaving a metal plate, and the cross-sectional shape in the left-right direction on the paper surface is a substantially inverted T-shaped support having a narrow width. The structure is supported by the portions 102a to 102c, and there is a problem that the strength is structurally weak.

  On the other hand, as described above, the conventional deck plate adopts a structure that draws a wave as a reasonable shape to maintain strength, and has a secondary moment, a section modulus, etc. as a physical quantity indicating resistance to stress. Is higher than the flat roof 100.

  The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to utilize the characteristics of a deck plate that is a strong structure, and even when the heat insulating material is placed on the heat insulating material. It is possible to prevent the insulation from cracking by dispersing the pressure applied to it, etc., to withstand loads during construction work, such as the weight of snow, and to install insulation boards and waterproof sheets It is an object of the present invention to provide a deck plate and the like that can facilitate the above.

  In order to solve the above problems, the deck plate of the present invention is a deck plate provided with a folded plate material in which a plurality of convex portions and concave portions are alternately arranged regularly by bending a metal plate. A concave lid is provided to cover the concave lid, and a flat top surface of the concave lid is formed so as to be flush with the convex upper plane of the convex portion.

  According to the above configuration, the folded plate material has a structure in which a plurality of convex portions and concave portions are alternately and regularly arranged by bending a metal plate. Therefore, the secondary moment of section, the section modulus, and the like as physical quantities indicating resistance to stress are higher than those of the folded plate material having no structure. Therefore, it is possible to take advantage of the characteristic of the deck plate that has a strong structure.

  According to JIS, examples of the metal plate that is the material of the folded plate material include ordinary steel, weather resistant steel, and stainless steel. However, the present invention is not limited thereto, and various metals, various alloys, and the like are necessary. The selection may be made accordingly.

  In addition, the deck plate is provided with a concave cover that covers the concave portion of the folded plate material, and the lid upper plane of the concave cover is formed to be the same plane as the convex upper plane of the convex section. ing.

  Therefore, in addition to the upper surface of the convex portion, the upper surface of the deck plate includes the upper surface of the lid of the concave portion that is the same plane as the upper surface of the convex portion. Compared with a deck plate without a concave cover, it is overwhelmingly high. Therefore, even when a heat insulating material or the like is placed on top, the heat insulating material or the like can be prevented from cracking by dispersing the pressure applied to the heat insulating material or the like. Further, it can withstand loads such as workers during construction work and the weight of snow, and can facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  The recess lid may be prevented from being removed by welding or the like, or may be removable as will be described later. When it cannot be removed by welding or the like, the strength of the deck plate can be increased, and the recess lid can be prevented from easily coming off.

  As described above, while taking advantage of the characteristics of the deck plate having a strong structure, even when the heat insulating material is placed on the top, the pressure applied to the heat insulating material is prevented from being broken to prevent the heat insulating material from cracking. Therefore, it is possible to provide a deck plate that can withstand loads during construction work, such as the weight of snow, and can facilitate the work of laying a heat insulating plate or a waterproof sheet.

  Further, the deck plate of the present invention includes, in addition to the above configuration, the convex upper surface of the convex upper surface and the width of the folded plate material adjacent to the concave and convex portions, and the concave lower surface of the concave portion. It is preferable that the ratio with respect to the convex part height which is distance is 1-3.

  Here, when the ratio is larger than 3, the relative height of the convex portion in the deck plate is low, and the convex portion is unlikely to fall down in the direction in which the concave and convex portions are adjacent to each other due to the load. Therefore, it is not meaningful to provide the concave cover. For this reason, when the folded plate material is usually a steel plate, the ratio is preferably 3 or less.

  On the other hand, if the ratio is smaller than 1, the relative height of the convex portions in the deck plate increases, but the density of the irregularities in one folded plate material increases. As a result, the convex portion is unlikely to fall down in the direction in which the irregularities are adjacent due to the load. Therefore, also in this case, it is not meaningful to provide the concave cover. Therefore, the ratio is preferably 1 or more.

  As a result, it is possible to prevent the convex portion of the deck plate from overturning due to a load while keeping the strength of the deck plate practically.

  Further, in the deck plate of the present invention, in addition to the above configuration, it is preferable that the concave portion is provided with a concave portion locking portion for locking the concave portion lid.

  In the deck plate according to the present invention, in addition to the above-described configuration, it is preferable that the recessed portion lid is provided with a covered portion to be engaged with the recessed portion engaging portion.

  According to the said structure, the lid | cover for recessed parts can be latched to the recessed part of a deck plate. Therefore, it is possible to prevent the concave cover from being easily detached from the deck plate.

  Moreover, the deck plate of this invention WHEREIN: In addition to the said structure, it is preferable that the said cover for recessed parts has a cover fitting part fitted by the said recessed part in a press state.

  According to the said structure, when the recessed part lid | cover and the recessed part of a deck plate are fitted, the elastic force when the cover fitting part of a recessed part lid | cover is fitted in the press state can be utilized. Therefore, it is possible to prevent the recess lid from easily coming off from the deck plate by the elastic force. Further, the pressure resistance characteristics of the concave lid in the deck plate can be enhanced by the elastic force.

  In addition to the above configuration, the deck plate of the present invention is configured such that the lower end portion of the lid fitting portion is formed so as to contact the bottom surface of the recess when the recess is covered with the recess lid. preferable.

  According to the said structure, when the deck plate and the recessed part cover are fitted, the lower end part in the said cover fitting part contact | abuts to the bottom face of the recessed part of a deck plate. Therefore, the lid for the recess can be supported by the lower end portion of the lid fitting portion. Therefore, it is possible to further improve the pressure resistance characteristics of the recess lid in the deck plate.

  In the deck plate of the present invention, in addition to the above configuration, it is preferable that the recess lid is removable.

  According to the said structure, since the cover for recessed parts can be removed, replacement | exchange of one cover for recessed parts and the cover for other recessed parts is attained. Therefore, if necessary, a recess lid having a desired configuration can be selected and used.

  In the deck plate of the present invention, in addition to the above configuration, the folded plate material is provided so as to be connectable to another adjacent folded plate material, and one and the other end portions of the folded plate material with respect to the adjacent direction of the unevenness One of the connecting portions and the other connecting portion for connecting to another adjacent folded plate material is formed in each of the other folded plate materials, and the other folded plate material is provided in each of the one connected portion or the other connected portion of the folded plate material. When the other connecting portion or the one connecting portion is connected to each other, the one and the other end portions are formed so that a connecting recess is formed, and the connecting recess is covered with the connecting recess. When a free connecting concave cover is provided, the convex upper surface of the convex part is preferably formed to be flush with the upper cover flat surface of the connecting concave cover.

  According to the said structure, the folded-plate material which comprises a deck plate is provided so that connection with the other adjacent folded-plate material is possible. Moreover, the one connection part and the other connection part for connecting with the other adjacent folding plate material are formed in the one and the other edge part with respect to the direction where the unevenness | corrugation of this folding plate material adjoins, respectively. Therefore, a plurality of deck plates can be connected.

  In addition, when the other connecting portion or one connecting portion in the other folded plate material is connected to each of the one connecting portion or the other connecting portion of the folded plate material constituting the deck plate, a connecting recess is formed, The one end and the other end are formed. Further, when the connecting recess is provided with a removable connecting recess lid that covers the connecting recess, the convex upper surface of the convex portion is flush with the lid upper plane of the connecting recess lid. It is formed as follows. Furthermore, the lid for connecting recesses is removable.

  Therefore, after connecting a plurality of deck plates, the connection recess can be covered with the connection recess cover, so that the construction is easy and the other connection part or the connection part when the one connection part is connected. It is possible to prevent rainwater from collecting in the vicinity and leaking rainwater from the vicinity of the connecting portion.

  Further, in the deck plate of the present invention, in addition to the above configuration, the fitting width of the connecting recess lid to the connecting recess and the fitting width of the recess lid to the recess are formed to be the same. It is preferable.

  According to the said structure, the recessed part cover and the connection recessed part cover can be diverted to a connection recessed part and a recessed part, respectively. Therefore, it is not necessary to perform the troublesome work of separately producing these lids, and the production efficiency can be increased and the production cost can be reduced.

  In addition, when the other connecting portion or one connecting portion in the other folded plate material is connected to each of the one connecting portion or the other connecting portion of the folded plate material constituting the deck plate, a connecting recess is formed, The one end and the other end are formed. Further, when the connecting recess is provided with a removable connecting recess lid that covers the connecting recess, the convex upper surface of the convex portion is flush with the lid upper plane of the connecting recess lid. It is formed as follows. Furthermore, the lid for connecting recesses is removable.

  Therefore, after connecting a plurality of deck plates, the connection recess can be covered with the connection recess cover, so that the construction is easy and the other connection part or the connection part when the one connection part is connected. It is possible to prevent rainwater from collecting in the vicinity and leaking rainwater from the vicinity of the connecting portion.

  In addition to the above configuration, the deck plate of the present invention is configured such that the one connecting portion of the folded plate material and the other connecting portion of the folded plate material adjacent to the folded plate material are hooked to each other, and the connecting recess lid It is preferable to have a coupling recess lid fitting part fitted into the coupling depression.

  According to the said structure, the one connection part of folded-plate material and the other connection part of the folded-plate material adjacent to this folded-plate material are latched mutually. Moreover, the connection recessed part lid | cover has a connection recessed part cover fitting part fitted by the said connection recessed part. By the way, if the latching state of one connection part of a folded plate material and the other connection part of the folded plate material adjacent to this folded plate material collapse | crumbles and the distance of one connection part and the other connection part becomes narrow, a connection recessed part will be latched. The state of being collapsed. However, according to the said structure, the said distance can be prevented from narrowing by fitting the connection recessed part cover which has a connection recessed part cover fitting part which covers a connection recessed part to this connection recessed part. Therefore, by covering the connection recess with the connection recess cover, it is easy to maintain the state where the one connection portion of the folded plate material and the other connection portion of the folded plate material adjacent to the folded plate material are hooked together. be able to.

  Further, in the deck plate of the present invention, in addition to the above configuration, it is preferable that a processing shape by embossing is formed on the recess lid.

  In the deck plate of the present invention, in addition to the above configuration, it is preferable that a processed shape by embossing is formed on the flat surface of the convex portion.

  According to the said structure, the process shape by embossing is formed in the convex part plane or the cover for recessed parts. Therefore, the strength can be increased as compared with the case where the embossing is not performed.

  Further, in order to solve the above problems, the deck plate of the present invention is a deck plate provided with a folded plate material having one convex portion by bending a metal plate. The first and second end portions of the convex portion are formed with one connecting portion and the other connecting portion for connecting to another adjacent folded plate material. And when the other connecting part or one connecting part in the other folded plate material is connected to each of the one connecting part or the other connecting part of the folded plate material, the one and The other end portion is formed, and at least one of the one connecting portion or the other connecting portion is provided with a detachable connecting recess cover for covering the connecting recess, and the convex portion. Convex part Upper plane is characterized in that it is formed so as to cover the upper flat surface flush with the connecting recess lid.

  According to the said structure, a folded plate material is a structure which has one convex part by bending a metal plate. Therefore, the weight of one deck plate can be made smaller than that of a deck plate provided with a folded plate material having a plurality of convex portions, and transportability and workability can be improved.

  Further, the folded plate material constituting the deck plate is provided so as to be connectable to other adjacent folded plate materials. Moreover, the one connection part and the other connection part for connecting with the adjacent other folded plate material are formed in each of the one and other edge part of the said convex part. Therefore, a plurality of deck plates can be connected.

  The deck plate is provided with a detachable connecting concave cover that covers the connecting concave portion on at least one side of the one connecting portion or the other connecting portion, and the convex upper surface of the convex portion is: It forms so that it may become the same plane as the lid | cover upper plane of the said connection recessed part lid | cover.

  Therefore, in addition to the upper surface of the convex portion, the top surface of the deck plate includes the upper surface of the lid of the connecting concave portion that is the same plane as the upper surface of the convex portion. However, it can be overwhelmingly higher than a deck plate without a connecting concave cover.

  In addition, when two or more deck plates are connected, a heat-insulating material or the like is placed on the connection concave portion formed by the connection by providing a removable connection concave lid. The pressure applied to the material or the like can be dispersed to prevent the heat insulating material from cracking. Thus, it is possible to withstand loads such as workers during construction work and the weight of snow, and to facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  As described above, the deck plate of the present invention is provided with a lid that covers the concave portion of the deck plate, and the lid upper plane of the lid is flush with the convex upper plane of the convex portion of the deck plate. Is formed.

  Therefore, it is possible to prevent cracking of the heat insulating material by dispersing the pressure applied to the heat insulating material even when the heat insulating material is placed on top while taking advantage of the characteristic of the deck plate that is a strong structure. It is possible to provide a deck plate that can withstand loads during construction work and the weight of snow, etc., and can facilitate the work of laying a heat insulating plate or a waterproof sheet. .

  Moreover, the deck plate of the present invention is a deck plate provided with a folded plate material having one convex portion by bending a metal plate as described above, and the folded plate material is another folded plate material adjacent thereto. Are connected to each other, and one end and the other end of the projection are connected to another adjacent folded plate material, respectively, The one end and the other end of the folded plate member are formed so that a connecting recess is formed when the other connecting portion or the one connecting portion in the other folded plate member is connected to the one connecting portion or the other connecting portion of the folded plate member. The connecting portion is formed, and at least one of the one connecting portion or the other connecting portion is provided with a detachable connecting concave cover that covers the connecting concave portion, and the convex portion of the convex portion. The upper part plane is Are those formed such that the lid top plane and flush with the connecting recess lid.

  According to the above, the folded plate material has a structure in which one convex portion is formed by bending a metal plate. Therefore, the weight of one deck plate can be made smaller than that of a deck plate provided with a folded plate material having a plurality of convex portions, and it is possible to improve transportability and workability.

  Further, the folded plate material constituting the deck plate is provided so as to be connectable to other adjacent folded plate materials. Moreover, the one connection part and the other connection part for connecting with the adjacent other folded plate material are formed in each of the one and other edge part of the said convex part. Therefore, there is an effect that a plurality of deck plates can be connected.

  Further, the deck plate is provided with a detachable connecting concave cover that covers the connecting concave portion in at least one connecting concave portion of the one connecting portion or the other connecting portion, and the convex upper surface of the convex portion is The connecting recess cover is formed so as to be flush with the lid upper plane.

  Therefore, in addition to the upper surface of the convex portion, the top surface of the deck plate includes the upper surface of the lid of the connecting concave portion that is the same plane as the upper surface of the convex portion. However, there is an effect that the height can be overwhelmingly higher than that of the deck plate without the lid for the connection recess. In addition, when two or more deck plates are connected, a heat-insulating material or the like is placed on the connection concave portion formed by the connection by providing a removable connection concave lid. The pressure applied to the material or the like can be dispersed to prevent the heat insulating material from cracking. Therefore, it is possible to withstand loads such as the worker during construction work and the weight of snow and to facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  An embodiment of the present invention will be described with reference to FIGS. 1 to 5B. As described above, the deck plate is a Japanese Industrial Standard, but the scope of the present invention is not limited by the standard or the like.

[1. About the basic structure of the deck plate)
First, a deck plate 10a according to an embodiment of the present invention based on FIG. 1 and FIGS. 2 (a) to 2 (c) (hereinafter, for convenience of explanation, when there are a plurality of deck plates). The basic structure of the deck plate 10a, the deck plate 10b, etc. will be described with a lower case alphabetic letter.

  FIG. 1 is a perspective view for explaining the configuration of the deck plate 10a and the deck plate 10b. FIG. 2A is a cross-sectional view showing the cross-sectional shapes of the deck plate 10a and the deck plate 10b, and FIG. 2B is a cross-sectional view of a concave cover 12a that is an example of the concave cover in the deck plate 10a. It is sectional drawing which shows a shape. FIG. 2C is a cross-sectional view showing a cross-sectional shape of a connecting recess lid 12b which is an example of the connecting recess lid in the deck plate 10a and the deck plate 10b. The recess cover 12a and the connection recess cover 12b can be used as a connection recess cover and a recess cover, respectively.

  As shown in FIG. 1, the deck plate 10 a includes a folded plate material 11 a and a recess lid 12 a. As described above, a recess lid having the configuration of the connecting recess lid 12b may be provided instead of the recess lid 12a.

  According to JIS, examples of the metal plate that is the material of the folded plate material 11a include ordinary steel, weather resistant steel, and stainless steel. However, the present invention is not limited thereto, and various metals, various alloys, and the like are necessary. It may be appropriately selected depending on the situation. Moreover, although the deck plate comprised by processing normal steel has what was rolled, and what gave plating, plating may be given to metal plates other than normal steel.

  Incidentally, FIG. 1 shows a case where the number of the concave portions of the deck plate 10a (excluding the connecting concave portion formed by the connecting portion between the deck plate 10a and the deck plate 10b is described in detail below) is one ( However, this is not the only case in which the recess lid 12a is attached), and the deck plate 10a may have a plurality of recesses.

As shown in FIGS. 1 and 2A, the cross-sectional shape of the folded plate material 11a has a structure in which convex portions and concave portions are alternately and regularly arranged so as to draw a waveform. As shown in FIG. 2A, the upper surface of the convex portion of the folded plate material 11a is usually a flat surface, and according to JIS, it is a portion corresponding to the upper flange of a general deck plate. It is called a flange (convex part upper plane or convex part) 13a ₁ and an upper flange (convex part upper plane or convex part) 13a ₂ .

Incidentally, as shown in FIG. 1, the upper flange 13a ₁ · upper flange 13a _2, on the flange 13a ₁ · upper flange 13a ₂ on the machining shape (FIG. 1 by embossing, adjacent irregularities of the deck plate 10a It is preferable that a processing shape formed as a recess along a plurality of parallel lines in the direction is formed. Thus, compared to those not having the machining shape, it is possible to increase the strength of the upper flange 13a 1 _· upper flange 13a ₂ turn deck plate 10a.

Further, as shown in FIG. 2 (a), the bottom surface of the concave portion of the folded plate material 11a is also usually a flat surface. According to JIS, it is a portion corresponding to the lower flange of a general deck plate. flange (concave lower planar, concave) is referred to as 15a _2. Incidentally, as shown in FIGS. 1 and 2 (a), the direction in appropriate ribs at a plurality of positions of the lower flange 15a ₂ (FIGS. 1 and 2 (a), adjacent the unevenness of the deck plate 10a in the lower flange 15a ₂ to It is preferable to provide a convex portion formed along two parallel lines in a direction perpendicular to. Thereby, the strength of the lower flange 15a _{2 and the} deck plate 10a can be increased.

Furthermore, as shown in FIG. 2 (a), of folding the plate material 11a, the surface to connect a flange 13a ₁ and the lower flange 15a ₂ on the adjacent, according to JIS, the portion corresponding to the common deck plate web Therefore, it is called a web (recess fitting part, convex part or concave part) 16a _1R (hereinafter, for convenience of explanation, the web on the right side of the concave part or the connecting concave part to be described later is subscripted with capital letters R) It is attached as a letter and is referred to as a web 16a _1R, etc. On the other hand, on the web on the left side of the recess or the connection recess, an alphabetic capital letter L is attached as a subscript, and the web 16 (connection recess fitting part, connection recess) Or a convex part) _a1L etc.).

In other words, the cross-sectional shape of the folded plate material 11a of the deck plate 10a has a structure in which the upper flange 13a ₁ , the lower flange 15a ₂ , and the web 16a _1R are taken as one constituent unit and the unit is repeated to draw a waveform. Yes.

Thus, the convex portion of the deck plate 10a is composed of two webs 16a _1R and 16a _1L connected to both ends of the upper flange 13a ₁ and the upper flange 13a ₁ in the adjacent direction of the unevenness in the deck plate 10a. (Convex).

From another viewpoint, the recess of the deck plate 10a is, the lower flange 15a ₂ and the lower flange 15a _2, 2 two webs _{16a 1R} · web (recess fitting leading to adjacent opposite ends of the irregularities in the deck plate 10a Part, convex part or concave part) 16a _2L (concave part).

The recess lid 12a covers the recess of the deck plate 10a. The recess lid 12a may not be removed by welding or the like, or may be removable as will be described later. In addition, when it is made impossible to remove by welding etc., the intensity | strength of the deck plate 10a can be raised and the lid | cover 12a for recessed parts can be prevented from removing easily. The lid top plan 14a of the recess for the lid 12a is formed such that the flange 13a ₁ · upper flange 13a ₂ flush on the protruding portion of the deck plate 10a.

  As described above, the folded plate material 11a in the deck plate 10a has a structure in which a plurality of convex portions and concave portions are alternately and regularly arranged by bending a metal plate. Therefore, the secondary moment of section, the section modulus, and the like as physical quantities indicating resistance to stress are high compared to a folded plate material having no such structure. Therefore, it is possible to take advantage of the characteristic of the deck plate that has a strong structure.

Moreover, the deck plate 10a, together with the recess lid 12a covering the recess of the folding plate member 11a is provided, the cover top plane 14a of the recess for the lid 12a is deck plate 10a of the upper flange 13a ₁ · upper convex portion are formed such that the flange 13a ₂ flush.

  Therefore, the ratio of the flat surface to the upper surface of the deck plate 10a is overwhelmingly higher than that of the deck plate without the concave cover. Therefore, even when a heat insulating material or the like is placed on top, the heat insulating material or the like can be prevented from cracking by dispersing the pressure applied to the heat insulating material or the like. Further, it can withstand loads such as workers during construction work and the weight of snow, and can facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  As described above, while taking advantage of the characteristics of the deck plate having a strong structure, even when the heat insulating material is placed on the top, the pressure applied to the heat insulating material is prevented from being broken to prevent the heat insulating material from cracking. Therefore, it is possible to provide the deck plate 10a that can withstand loads such as workers during construction work and the weight of snow, and can facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

[2. Details of the structure of the lid for the recess in the deck plate)
Next, based on FIGS. 2A to 2B and FIG. 3A, details of the configuration of the recess lid 12a, which is an example of a lid for covering the recess in the deck plate 10a, will be described.

  In addition, [2. Configurations other than those described in detail in [Configuration of recess lid in deck plate] are described in [1. The basic configuration of the deck plate] is the same. For convenience of explanation, [1. The members having the same functions as those shown in the drawing of “Basic Configuration of Deck Plate” are given the same reference numerals, and the description thereof is omitted.

  First, the configuration of the recess lid 12a in the deck plate 10a will be described with reference to FIGS. 2 (a), 2 (b), and 3 (a). FIG. 2B is a cross-sectional view showing a cross-sectional shape of the recess lid 12a. FIG. 3A is a perspective view showing an outline of the overall configuration of the recess lid 12a.

The recess lid 12a has an overall configuration as shown in FIG. 3A. As shown in FIG. 2B, the lid upper flat surface 14a, the lid fitting portion 17a _L, and the lid fitting portion 17a. _{And R.}

  The lid top plane 14a is a plane formed on the top of the recess lid 12a. As shown in FIG. 3 (a), the lid upper flat surface 14a is appropriately processed at a plurality of locations by embossing (on the lid upper flat surface 14a in FIG. 3 (a), the short direction of the concave lid 12a). It is preferable that a processing shape formed as a recess along a plurality of parallel lines is formed. Thereby, the intensity | strength of the lid | cover upper plane 14a and by extension, the recessed part lid | cover 12a can be raised.

The lid fitting portion 17a _L and the lid fitting portion 17a _R are portions that are fitted in a pressed state with respect to the concave portion of the deck plate 10a. In the recess lid 12a, as shown in FIG. 2 (a), the pressing state is the lid fitting portion 17a with respect to the webs 16a _1R and webs (concave fitting portion, convex portion or concave portion) 16a _2L . _This is due to the elastic force in the short direction of the recess lid 12a in the _L / lid fitting portion 17a _R.

Therefore, when the recess lid 12a and the recess of the deck plate 10a are fitted, the lid fitting portion 17a _L and the lid fitting portion 17a _R of the recess lid 12a are fitted in a pressed state. Elastic force can be used. Therefore, the recess lid 12a can be prevented from being easily detached from the deck plate 10a by the elastic force. Further, the pressure resistance characteristic of the recess lid 12a in the deck plate 10a can be enhanced by the elastic force.

By the way, as shown in FIG. 2 (a), in the recesses of the deck plate 10a, recess recesses (in which a part of each of the webs 16a _1R and webs 16a _2L protrudes to lock the recess lid 12a ( Recessed portions) 18a _1R and recessed portion locking portions (recessed portions) 18a _2L are provided.

On the other hand, as shown in FIG. 2 (b), the lid fitting portion 17a _L and the lid fitting portion 17a _R in the concave lid 12a are formed by curving the lower end portions in an S shape and a Z shape, respectively. A locked portion 19a _L and a lid locked portion 19a _R are provided.

Therefore, the recess lid 12a can be locked to the recess of the deck plate 10a (the recess composed of the web 16a _1R , the web 16a _2L, and the lower flange 15a). Therefore, it is possible to prevent the recess lid 12a from being easily detached from the deck plate.

Next, another example of the recess lid 12a will be described. The lid fitting portion 17a _L / lid fitting portion 17a _R in the concave lid 12a will be described in detail later, but the coupling concave lid fitting in the coupling concave lid 12b shown in FIGS. 2 (a) and 2 (c). it may be configured as engagement portions 17b _L and connecting recess lid fitting portion 17b _R.

That is, the lower end portions of the lid fitting portion 17a _L and the lid fitting portion 17a _{R contact} the lower flange 15a ₂ that is the bottom surface of the concave portion when the concave portion lid 12a covers the concave portion of the deck plate 10a. It is preferable to form so that it may contact | connect (not shown).

Thereby, when the deck plate 10a and the recess lid 12a are fitted, the lower end portions of the lid fitting portion 17a _L and the lid fitting portion 17a _R are the bottom surfaces of the concave portions of the deck plate 10a. It abuts the flange 15a _2. Therefore, the recessed portion lid 12a can be supported by the lower end portions of the lid fitting portion 17a _L and the lid fitting portion 17a _R. Therefore, it is possible to further improve the pressure resistance characteristics of the recess lid 12a in the deck plate 10a.

  In addition, it is preferable that the fitting width to the connection recessed part in the connection recessed part lid | cover 12b and the fitting width to the recessed part in the recessed part cover 12a are formed identically.

  Thus, the recess lid 12a and the connection recess lid 12b can be diverted to the connection recess and the recess, respectively. Therefore, it is not necessary to perform the troublesome work of separately producing these lids, and the production efficiency can be increased and the production cost can be reduced.

  The recess lid 12a and the connecting recess lid 12b of the deck plate 10a are preferably removable.

  Thereby, since the recessed part lid | cover 12a can be removed, it becomes possible to replace | exchange the recessed part lid | cover 12a and the connection recessed part lid | cover 12b as another recessed part lid | cover 12b, for example. Therefore, if necessary, a recess lid having a desired configuration can be selected and used.

[3. (Deck plate connection structure and the ratio of the width of the top surface of the projection to the height of the projection)
Next, the connection structure of the deck plate 10a and the deck plate 10b will be described with reference to FIG. FIG. 4 is a cross-sectional view for explaining the connection structure of the deck plate 10a. As shown in FIG. 4, the folded plate material 11a constituting the deck plate 10a is provided so as to be connectable to another folded plate material 11b constituting the deck plate 10b adjacent to the folded plate material 11a.

Further, the connection recess lower flange (connection recess, one end or the other end) 15a _{1 of} the folded plate member 11a and the connection recess lower flange (connection recess, one end or the other end) 15a ₃ In each case, a left connecting portion (one connecting portion, the other connecting portion, one end portion, the other end portion) is connected to another folded plate material 11b constituting the deck plate 10b adjacent to the folded plate material 11a. , And a connecting recess) 20a _L and a right connecting portion (one connecting portion, the other connecting portion, one end, the other end, and a connecting recess) 20a _R are formed.

In addition, the connecting recess lower flange (connecting recess, one end or the other end) 15b ₁ of the deck plate 10b includes a left connecting portion (one connecting portion, the other connecting portion, one end, the other end). Part and connecting recess) 20b _L are formed. Therefore, the deck plate 10a and the deck plate 10b can be connected.

Also, in FIG. 4, the right connecting portion 20a _R of the folded plate material 11a constituting the deck plate 10a and the left connecting portion 20b _L of the folded plate material 11b constituting the deck plate 10b are connected, and the deck plate 10a and the deck plate are connected. 10b is shown connected to 10b.

Thus, coupling the right connecting portion 20a _R · left connecting portion 20b _L of the respective end portions of the connecting recess under the flange 15a ₁ · connecting recess under the flange 15a ₃ is formed by bending on S-shaped folding plate 11a Web (connection recess fitting portion, connection recess or projection) 16a _2R , web (connection recess fitting portion, connection recess or projection) 16b _1L , and connection recess lower flange (connection recess, one end) , Or the other end portion) 15a ₃ is formed.

Further, when the connecting recess is provided with a removable connecting recess lid 12b that covers the connecting recess, the upper flange 13a ₁ , the upper flange 13a ₂ , and the upper flange 13b ₁ are the same as the lid upper plane 14b. It is formed to be a plane. The connecting recess lid 12b is removable.

Thereby, after connecting the deck plate 10a and the deck plate 10b, since the said connection recessed part can be covered with the cover 12b for connection recessed parts, construction is easy and the right connection part 20a _R and the left connection part 20b _L Can be prevented from leaking from the vicinity of the connecting portion and from the vicinity of the connecting portion.

As shown in FIG. 4, the right connecting portion 20 a _R and the left connecting portion 20 b _L are connected to each other to form a connecting recess. On the other hand, as shown in FIG. 2C, the connecting recess cover 12b has a connecting recess cover fitting portion 17b _L and a connecting recess cover fitting portion 17b _R which are fitted into the connecting recess. .

By the way, when the distance between the right connecting portion 20a _R of the folded plate member 11a and the left connecting portion 20b _L of the folded plate member 11b is narrowed, the state where the connecting recessed portion is hooked is broken. However, according to the above configuration, the coupling recess lid 12b having the coupling recess lid fitting portion 17b _L and the coupling recess lid fitting portion 17b _R covering the coupling recess is fitted to the coupling recess. It is possible to prevent the distance from becoming narrow. Therefore, by covering the coupling recess with the coupling recess lid 12b, it is possible to easily maintain the state where the right coupling portion 20a _R and the left coupling portion 20b _L are hooked to each other.

  Next, based on FIG. 4, the ratio of the width of the deck plate top surface to the height of the convex portion will be described. FIG. 4 is a cross-sectional view for explaining the ratio of the width A of the convex upper surface of the deck plate 10a to the convex height B.

Width A of the convex portion upper plane shown in FIG. 4 is a contiguous width of unevenness on the upper flange 13a ₁ or the upper flange 13a ₂ of the deck plate 10a of the folding plate 11a. Further, the convex portion height B is a distance between the upper flange 13a ₁ or the upper flange 13a ₂ and the lower flange 15a ₂ . At this time, the ratio A / B preferably takes a value of 1 to 3.

  Here, when the ratio A / B is larger than 3, the relative height of the convex portion in the deck plate 10a is low, and the convex portion is unlikely to fall down in the direction in which the concave and convex portions are adjacent to each other due to the load. Therefore, it is not meaningful to provide the recess lid 12a. For this reason, when the folded plate material 11a is assumed to be a normal steel plate, the ratio A / B is preferably 3 or less.

  On the other hand, if the ratio A / B is smaller than 1, the relative height of the convex portions in the deck plate 10a increases, but the density of the irregularities in the single folded plate material 11a increases. As a result, the convex portion is unlikely to fall down in the direction in which the irregularities are adjacent due to the load. Therefore, also in this case, it is not meaningful to provide the concave cover 12a. Therefore, the ratio A / B is preferably 1 or more.

  Thereby, the deck plate 10a can be prevented from tipping over due to the load while keeping the strength of the deck plate 10a practically usable.

[4. Example of deck plate with one convex part]
Next, the deck plate 10a in the case where there is one convex portion will be described with reference to FIGS. 5 (a) and 5 (b).

  As shown in FIGS. 5A and 5B, the deck plate 10a is provided with a folded plate material 11a having one convex portion by bending a metal plate. Therefore, the weight of one deck plate 10a can be made smaller than that of a deck plate provided with a folded plate material having a plurality of convex portions, and transportability and workability can be improved.

  Further, the folded plate material 11a constituting the deck plate 10a is provided so as to be connectable with another folded plate material 11b constituting the adjacent deck plate 10b.

Further, each of the connecting recess lower flange 15a ₁ and the connecting recess lower flange 15a ₃ of the folded plate member 11a is connected to the other folded plate member 11b constituting the deck plate 10b adjacent to the folded plate member 11a. A connecting portion 20a _L and a right connecting portion 20a _R are formed.

Further, the connecting recess under the flange 15b ₁ of the deck plate 10b, the left connecting portion 20b _L is formed. Therefore, the deck plate 10a and the deck plate 10b can be connected.

The convex portions in the folded plate material 11a are an upper flange (convex upper plane) 13a, a web (a connected concave fitting portion, a connected concave portion or a convex portion) 16a _L, and a web (a connected concave fitting portion) that are flat surfaces on the upper portion of the convex portion. , Connecting concave or convex) 16a _R (convex).

In FIG. 5A, the right connecting portion 20a _R of the folded plate material 11a constituting the deck plate 10a and the left connecting portion 20b _L of the folded plate material 11b constituting the deck plate 10b are connected to each other, and the deck plate 10a is connected. And the deck plate 10b are connected to each other.

Thus, the right connecting portion 20a _R-left connecting portion 20b _L that end of the connecting recess under the flange 15a _1-connecting recess under the flange 15a ₃ was formed by bending on the S-on-claw respective folding plate 11a By connecting, a connecting recess composed of the web 16a _R , the web (connecting recess fitting portion, connecting recess or projection) 16b _L , and the connecting recess lower flange 15a ₃ is formed. The connecting recess may be formed by the left connecting portion 20a _L on the connecting recess lower flange 15a ₁ side and the right connecting portion of another deck plate.

  Further, when the connecting recess is provided with a removable connecting recess cover 12b that covers the connecting recess, the upper flange 13a is formed to be flush with the lid upper plane 14b. The connecting recess lid 12b is removable. Therefore, in addition to the upper flange 13a, the upper surface of the deck plate 10a includes the lid upper surface 14b of the connecting recess lid 12b that is flush with the upper flange 13a. However, it can be overwhelmingly higher than a deck plate without the connecting recess cover 12b.

  In addition, when the folded plate material 11a and the folded plate material 11b are coupled, a removable coupling recess lid 12b is provided in the coupling recess formed by coupling, so that a heat insulating material or the like is placed on top. Even in this case, it is possible to disperse the pressure applied to the heat insulating material and prevent the heat insulating material from cracking. Thus, it is possible to withstand loads such as workers during construction work and the weight of snow, and to facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  FIG. 5B shows a state where a detachable connecting recess cover 12b is provided in a connecting recess formed by the deck plate 10a and the deck plate 10b.

Thereby, after connecting the deck plate 10a and the deck plate 10b, since the said connection recessed part can be covered with the cover 12b for connection recessed parts, construction is easy and the right connection part 20a _R and the left connection part 20b _L Can be prevented from leaking from the vicinity of the connecting portion and from the vicinity of the connecting portion.

As shown in FIG. 5A, the right connecting portion 20a _R and the left connecting portion 20b _L have a connecting recess formed by being latched to each other. On the other hand, the connecting recess cover 12b includes a connecting recess cover fitting portion 17b _L and a connecting recess cover fitting portion 17b _R which are fitted into the connecting recess.

By the way, when the distance between the right connecting portion 20a _R of the folded plate member 11a and the left connecting portion 20b _L of the folded plate member 11b is narrowed, the state where the connecting recessed portion is hooked is broken. However, according to the above configuration, the coupling recess lid 12b having the coupling recess lid fitting portion 17b _L and the coupling recess lid fitting portion 17b _R covering the coupling recess is fitted to the coupling recess. It is possible to prevent the distance from becoming narrow. Therefore, by covering the coupling recess with the coupling recess lid 12b, it is possible to easily maintain the state where the right coupling portion 20a _R and the left coupling portion 20b _L are hooked to each other.

[5. (Summary)
As described above, while taking advantage of the characteristics of the deck plate having a strong structure, even when the heat insulating material is placed on the top, the pressure applied to the heat insulating material is prevented from being broken to prevent the heat insulating material from cracking. It is possible to provide a deck plate 10a and the like that can withstand loads such as workers during construction work and the weight of snow, and can facilitate the work of laying a heat insulating plate, a waterproof sheet, and the like.

  The present invention is not limited to the example of the deck plate described above, and various modifications are possible within the scope of the technical means described in the section of the best mode for carrying out the present invention. Embodiments obtained by appropriately combining the respective technical means are also included in the technical scope of the present invention.

  The present invention is widely applied to folded plate materials formed by bending metal plates used in construction, civil engineering, vehicles, and other structures such as roof structures such as roof boards and roof foundations and floor structures such as floor boards. Can be applied.

It is a perspective view which shows one Embodiment of the deck plate in this invention. (A) is sectional drawing which shows the cross-sectional shape of the said deck plate, (b) is sectional drawing which shows the cross-sectional shape of an example of the lid | cover for recessed parts in the said deck plate. (C) is sectional drawing which shows an example of the lid | cover for connection recessed parts in the deck plate in this invention. (A) is a perspective view which shows an example of the said lid | cover for recessed parts, (b) is a perspective view which shows an example of the said lid | cover for connection recessed parts. It is sectional drawing for demonstrating ratio with respect to the convex part height of the connection structure of the said deck plate, and the width | variety of a convex upper part. (A) is sectional drawing which shows the connection structure in other embodiment of the deck plate in this invention, (b) is sectional drawing which shows the case where the cover for connection recessed parts is provided in the connection recessed part in this connection structure It is. It is a perspective view for demonstrating the conventional flat roof. It is sectional drawing for demonstrating the roof base structure using the conventional deck plate, (b) is sectional drawing for demonstrating the name of each part of the conventional deck plate. It is a perspective view for demonstrating the roof-plate structure using the conventional deck plate, a heat insulating board, and a waterproof sheet.

Explanation of symbols

10a, 10b deck plate 11a, 11b folded sheet 12a concave lid 12b connecting recess lid _{13a 1,} 13a 2, 13b ₁ upper flange (protrusion upper planar or convex portion)
14a, 14b Upper lid plane 15a ₂ Lower flange (recess lower plane, recess)
15a ₁ , 15a ₃ , 15b ₁ Connection recess lower flange (connection recess, one end or the other end)
16a _L , 16a _R , 16b _L web (connecting recess fitting portion, connecting recess or protrusion)
16a _1L , 16a _2R , 16b _1L web (connection recess fitting portion, connection recess or projection)
16a _1R , 16a _2L web (concave part, convex part or concave part)
17a _L , 17a _R lid fitting portion 17b _L , 17b _R connecting recess lid fitting portion 18a _1R , 18a _2L recess locking portion, recess 18a _L , 18a _R , 18b _L connecting recess locking portion, connecting recess 18a _1L , 18a _2R , 18b _1L connecting recess locking portion, connecting recess 19a _L , 19a _R lid locking portion 19b _L , 19b _R connecting recess lid locking portion 20a _L , 20b _L left connecting portion (one connecting portion, The other connecting part, one end, the other end, and the connecting recess)
20a _R right connecting part (one connecting part, the other connecting part, one end, the other end, and a connecting recess)
A Width of convex top plane B Convex height

Claims (13)

In the deck plate provided with a folded plate material in which a plurality of convex portions and concave portions are alternately and regularly arranged by bending a metal plate,
The folded plate material is provided so as to be connectable with other adjacent folded plate materials,
Each of one end and the other end in the adjacent direction of the unevenness of the folded plate material is formed with one connecting portion and the other connecting portion for connecting to another adjacent folded plate material,
When connecting the other connecting part or the one connecting part in the other folded plate material to the one connecting part or the other connecting part of the folded plate material, the one and the other end parts are formed so that a connecting recess is formed. And formed,
When the connection recess is provided with a removable connection recess lid that covers the connection recess,
The projection upper plane of the projection is formed to be the same plane as the lid upper plane of the connection recess lid ,
A curved shape is formed at the ends of the one connecting part and the other connecting part,
The one connecting portion of the folded plate material and the other connecting portion of the folded plate material adjacent to the folded plate material respectively constitute a part of the bottom portion of the connecting recessed portion, and are connected to each other by connecting the curved end portions. A deck plate , wherein the bottom plate is formed with a portion where the one connecting portion and the other connecting portion do not overlap each other . The mating width of the connecting recess in the connecting recess lid, and the fitting width of the recess in the lid recess, deck plate according to claim 1, characterized in that it is formed in the same. Before SL connecting recess lid is deck plate as claimed in claim 1, characterized in that it has a lid engaging portion for connecting recess to be fitted into the connecting recess. A recess cover for covering the recess is provided,
The deck plate according to any one of claims 1 to 3, wherein a lid upper plane of the concave lid is formed to be flush with a convex upper plane of the convex portion.   The ratio of the width in the adjacent direction of the irregularities of the folded plate material in the convex upper surface to the convex height, which is the distance between the convex upper plane and the concave lower plane of the concave, is 1 to 3. The deck plate according to claim 4, wherein the deck plate is provided.   The deck plate according to claim 4 or 5, wherein a concave portion locking portion for locking the concave portion lid is provided in the concave portion.   The deck plate according to claim 6, wherein the concave lid is provided with a lid locking portion to be locked to the concave locking portion.   The deck plate according to any one of claims 4 to 7, wherein the recess lid has a lid fitting portion that is fitted into the recess in a pressed state.   The deck plate according to claim 8, wherein a lower end portion of the lid fitting portion is formed so as to contact a bottom surface of the recess when the recess is covered with the recess lid.   The deck plate according to any one of claims 4 to 9, wherein the recess lid is detachable.   The deck plate according to any one of claims 1 to 10, wherein a processing shape by embossing is formed on the recess lid. The deck plate according to any one of claims 1 to 11, wherein a processed shape by embossing is formed on the upper surface of the convex portion. By bending the metal plate, in the deck plate provided with a folded plate material having one convex portion,
The folded plate material is provided so as to be connectable to other adjacent folded plate materials,
Each of one and the other end of the convex part is formed with one connecting part and the other connecting part for connecting to another adjacent folded plate material,
When connecting the other connecting part or the one connecting part in the other folded plate material to the one connecting part or the other connecting part of the folded plate material, the one and the other end parts are formed so that a connecting recess is formed. And formed,
The connecting concave portion on at least one side of the one connecting portion or the other connecting portion is provided with a removable connecting concave cover that covers the connecting concave portion, and the convex upper surface of the convex portion is for the connecting concave portion. It is formed so as to be flush with the lid upper plane of the lid ,
A curved shape is formed at the ends of the one connecting part and the other connecting part,
The one connecting portion of the folded plate material and the other connecting portion of the folded plate material adjacent to the folded plate material respectively constitute a part of the bottom portion of the connecting recessed portion, and are connected to each other by connecting the curved end portions. A deck plate , wherein the bottom plate is formed with a portion where the one connecting portion and the other connecting portion do not overlap each other .

Images