JP5082641B2 - Deck structure - Google Patents

Description

  The present invention relates to a deck structure.

  Some buildings, such as houses and cottages, have deck structures installed for the purpose of expanding living spaces and using external environments. This deck structure is required to be easily constructed, have high strength, and have an excellent appearance because of the nature of being attached to or close to the outside of the building.

In response to this requirement, Patent Document 1 provides a technique for installing a floor that satisfies the above requirement using an aluminum truss structure.
JP 2006-28785 A (FIG. 6)

  Since the conventional floor (deck structure) described above is used as a landing for stairs, the area may be small. However, when this technique is applied to a deck structure used for a balcony having a large floor area and a wide variety of shapes, the following problems occur.

  In the landing of Patent Document 1, a table-like support member having a reinforcing rib and a support post insertion portion is used to support the truss structure, but it is difficult to correspond to a deck structure having a large floor area. Moreover, when attaching stairs, since it was necessary to install a big connection plate in a truss structure, there existed a problem that a lot of work and time were required for construction.

  Therefore, the present invention has been made in view of such problems, and can be applied to a floor with a large floor area and various shapes while utilizing the characteristics of the high strength and excellent appearance of the truss structure. It is an object to provide a deck structure that can be easily performed.

In order to solve the above-mentioned problems, an invention according to claim 1 is a deck structure including a flooring, a truss structure disposed under the flooring, and a column supporting the flooring and the truss structure. The truss structure is configured by connecting an upper surface frame formed by connecting a plurality of upper chord members to each other and a lower surface frame formed by connecting a plurality of lower chord members to each other by a lattice material, A long reinforcing member is provided along the longitudinal direction of the upper chord member and the lower chord member, and a nodal member is attached to the upper chord member and the lower chord member, and the lattice member is connected to the nodal member. The nodal member has a through hole formed along the height direction thereof, and the support column has a lid portion having a through hole provided at the upper end thereof so as to communicate with the through hole, Using each through hole, the lower chord material It is the deck structure, wherein the upper end of the said joint member for forming struts are connected.

According to such a configuration, the strength of the truss structure having high strength and excellent appearance can be further increased by providing the long reinforcing member along the longitudinal direction below the lower chord material. In particular, in the present invention, the reinforcing member is a long member and is not plate-shaped as in the prior art. Therefore, even when the dimensions are large, transportation and handling are easy and construction is easy, and a large floor is provided. It becomes possible to deal with floors of various areas and floors of various shapes. In addition, since such a deck has a truss structure as a base, the torsional rigidity and bending rigidity are large, and the weight can be reduced. And a truss structure can be constructed | assembled by connecting a lattice material to the node member attached to the upper chord material and the lower chord material. Further, by changing the dimensions and the number of components of the upper chord material, the lower chord material, and the lattice material, it is possible to construct a truss structure for a deck that can flexibly cope with floor materials having various floor areas and shapes. Furthermore, by simply passing a fastening means such as a bolt through each through hole and tightening with a nut or the like, the node member can be easily connected to the lid at the upper end of the support column, and the labor and time for construction can be greatly reduced.

  According to a second aspect of the present invention, the upper surface frame is formed by connecting the upper chord members in a lattice shape, and the lower surface frame is connected in a lattice shape and positioned below a middle portion of the adjacent upper chord members. 2. The deck structure according to claim 1, wherein the lower chord members are connected to each other.

  According to such a configuration, since the lower frame is smaller than the upper frame in plan view, the space for installing the support can be reduced. Further, the truss structure has a converging shape from the upper surface to the lower surface, that is, an inverted triangular shape or an inverted trapezoidal shape in a side view. Therefore, it is excellent in appearance and can exhibit a design effect.

  The invention according to claim 3 is the deck structure according to claim 1 or 2, wherein the reinforcing member is disposed along the lower chord member located at the outer peripheral edge of the lower surface frame. It is.

  According to such a configuration, the torsional rigidity and the bending rigidity of the truss structure body can be further increased by reinforcing the outer peripheral edge of the lower surface frame.

According to a fourth aspect of the present invention, the support column includes a support column main body portion having hollow portions at least at both upper and lower ends, and an insertion portion to be inserted into the hollow portion, and the insertion portion has a screw hole on an upper surface thereof. The lid portion has a through hole provided so as to communicate with the screw hole on the upper surface of the insertion portion, and the insertion portion and the lid portion are formed using the screw hole and the through hole. The deck structure according to any one of claims 1 to 3, wherein the deck structure is connected.

  According to such a configuration, it is possible to easily connect the insertion portion and the lid portion by simply inserting a screw from the upper portion of the lid portion toward the insertion portion and screwing it in. It can be greatly reduced.

According to a fifth aspect of the present invention, the support column includes a support column main body having hollow portions at least at both upper and lower ends, and an insertion portion inserted into the hollow portion, and the reinforcing member is connected to the support column via a bracket. The insertion part is connected to the main body part, the insertion part has a screw hole on a side surface thereof, and the column main body part is provided on the side surface thereof so as to communicate with the screw hole on the side surface of the insertion part The bracket has a through hole provided so as to communicate with the through hole on the side surface of the column main body, the screw hole, the through hole of the column main body, and the bracket The deck structure according to any one of claims 1 to 4 , wherein the support column and the bracket are connected using a through-hole.

  According to such a configuration, it is possible to easily connect the reinforcing member and the support column by simply inserting a screw from the bracket side toward the support column and screwing it in, and greatly reducing the labor and time of construction. it can. Furthermore, a reinforcing member is bridged between the columns below the lower chord material, and the reinforcing member serves as a beam. Therefore, it is possible to provide a truss structure on the column with a large and stable torsional rigidity and bending rigidity. Yes, it can greatly increase the strength of the deck.

Invention, the insertion portion has a hollow portion, according to claim 4 or claim 5 portion where the screw hole is provided, characterized in that it is formed in the thick according to claim 6 Deck structure.

  According to such a configuration, even if the weight of the reinforcing member is large, the strength at the thick portion of the insertion portion is large, so that the support strength is high and can be reliably supported. Therefore, since a high-strength reinforcing member can be provided, it is possible to cope with a large floor area.

The invention according to claim 7 is further provided with a staircase for ascending and descending on the floor material, and the staircase includes a tread board and a girder supporting the tread board, and the girder includes the reinforcement. The deck structure according to any one of claims 1 to 6, wherein the deck structure is supported by being connected to a member.

  According to such a structure, since the stair girder is connected to the reinforcing member, no force is locally applied to the truss structure, and the truss structure has a high strength and is structurally stable. The material can be supported.

According to an eighth aspect of the present invention, a support shoe for fixing the staircase is provided on the outer peripheral surface of the reinforcing member, a bracket is provided below the upper end of the beam member, and the support shoe, the bracket, The deck structure according to claim 7 , wherein the deck structures are connected via a joint material.

  According to such a configuration, the position can be easily adjusted, and the stairs can be easily connected to the reinforcing member with a fastening member such as a bolt and a nut, so that the labor and time for construction can be greatly reduced.

  According to the present invention, while utilizing the characteristics of the high strength and excellent appearance that the truss structure has, it is possible to handle a floor with a large floor area and various shapes, and it can be easily constructed. Demonstrate the effect.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the present embodiment, the deck structure will be described by taking as an example a form applied as a balcony installed adjacent to a building such as a house or a cottage.

(overall structure)
First, the overall structure of the deck structure according to the present invention will be described with reference to FIGS. In the present embodiment, the direction in which the deck structure is viewed with the building adjacent to the deck structure as the back is the front. That is, the building side of the deck structure is the rear surface, and the side away from the building is the front surface.

  As shown in FIGS. 1 to 4, the deck structure 1 according to the present embodiment is applied as a balcony 3 provided so as to be accessible from the second floor of a building 2 such as a cottage (see FIG. 3). It is. The deck structure 1 includes a flooring 10, a truss structure 20 (see FIGS. 1 to 3) disposed under the flooring 10, and a column 50 that supports the flooring 10 and the truss structure 20. It has.

  As shown in FIGS. 1 to 3, the truss structure 20 includes a top frame 22 formed by connecting a plurality of upper chord members 21, 21,... And a plurality of lower chord members 23, 23. The lower surface frame 24 is connected to each other by a lattice material 25. And the elongate reinforcement member 30 is provided below the lower chord material 23 along the longitudinal direction.

  As shown in FIG. 1 and FIG. 4, in the present embodiment, the floor surface 11 constituted by the flooring 10 has a rectangular shape and is arranged so that its long side is parallel to the wall surface of the building 2. Has been. Further, in the present embodiment, as shown in FIGS. 1 to 4, a staircase 70 for descending from the floor surface 11 to the lower floor is provided at the front position on the front side of the deck structure 1. A handrail 90 is provided at the peripheral edge of the flooring 10. The handrail 90 is provided along the peripheral portion of the floor surface 11 excluding the portion where the deck structure 1 is in contact with the building 2 and the connecting portion of the stairs 70.

  In this embodiment, the main members (detailed later) constituting the flooring 10, the truss structure 20, the struts 50, the stairs 70, and the handrail 90 are formed of extruded shapes made of aluminum alloy.

(Truss structure)
Next, the truss structure 20 will be described mainly with reference to FIGS. 2 and 3 and FIGS.

  2, 3 and 5, the truss structure 20 includes a top frame 22 formed by connecting a plurality of upper chord members 21, 21... And a plurality of lower chord members 23, 23. Are connected to each other by lattice materials 25, 25....

  As shown in FIG. 5, the upper surface frame 22 includes a plurality of upper chord members 21, 21... Arranged in two directions, the X direction along the wall surface 2 a of the building 2 and the Y direction orthogonal to the wall surface 2 a. .. are configured in a grid pattern. Each of the upper chord members 21, 21... Is connected through a hub 26, which is a node member described later, and a square set 22 a having one side that is the length of the upper chord member 21 extends in the X direction and the Y direction. They are combined so that they are in parallel. The upper surface frame 22 is formed so that the outer peripheral edge has a planar shape having a rectangular shape, and the floor surface 11 having the same shape as the planar shape of the upper surface frame 22 is formed thereon. Note that the planar shape of the top frame 22 is not limited to a rectangle, and may be other shapes such as a square, a trapezoid, a triangle, an L shape, or a U shape, depending on the width, depth, or shape of the balcony. There may be. Particularly, the L-shape and the U-shape give a novel impression because the deck structure is formed along the protruding corner of the building.

  The lower frame 24 is configured to have a smaller planar shape than the upper frame 22. Specifically, the lower chord members 23, 23... Are formed between the upper chord members 21, 21 adjacent to each other in parallel with a predetermined interval (the length of the upper chord member 21, that is, the length of one side of the square group 22 a). The lower chord members 23, 23... Are also connected to each other in a lattice shape. The lower chord members 23, 23... Are combined such that a plurality of square sets 24a each having the length of the lower chord member 23 are arranged in parallel in the X direction and the Y direction. Here, since the upper chord member 21 and the lower chord member 23 have the same shape, the square sets 22a and 24a have the same shape. The lower chord material 23 positioned on the outer peripheral edge of the lower surface frame 24 is positioned on the inner side by half the length of the upper chord material 21 (lower chord material 23) than the upper chord material 21 positioned on the outer peripheral edge of the upper surface frame 22. Therefore, the connecting portions (hubs 26) of the lower chord members 23, 23... Of the lower surface frame 24 are respectively located below the intersections of the two diagonal lines of the square sets 22a, 22a. Yes.

  The upper chord members 21, 21... And the lower chord members 23, 23. The upper chord members 21 and 21 and the upper chord member 21 and the lattice member 25 are connected via a hub 26, and the lower chord members 23 and 23, and the lower chord member 23 and the lattice member 25 are connected via a hub 26. Connected.

  The lattice material 25 is a member that connects the upper frame 22 and the lower frame 24, and is slanted between a hub 26 provided on the upper chord material 21 and a hub 26 provided on the lower chord material 23. Is provided. The hub 26 of the upper surface frame 22 and the hub 26 of the lower surface frame 24 are offset in the X and Y directions by half the length of the upper chord member 21 (lower chord member 23). Therefore, in plan view, the hub 26 of the lower surface frame 24 is located at the center of the square group 22a of the upper surface frame 22 (intersection of two diagonal lines), and the hub located inside the hub 26 of the upper surface frame 22. 26 will be located in the center part (intersection of two diagonal lines) of the square group 24a of the lower surface frame 24. As a result, the lattice material 25 is arranged on the diagonal of the square set 22a (24a) in plan view.

  As shown in FIGS. 7A and 7B, the upper chord member 21 is obtained by processing a hollow extruded section made of an aluminum alloy having a circular cross section, and has flat connection end portions 21a and 21a at both ends thereof. have. The connection end portion 21a of the upper chord member 21 is formed by crushing both ends of the hollow extruded shape member by pressing or the like, and can be fitted into the connection groove 26a (see FIG. 8) of the hub 26. Further, as shown in FIG. 7B, an uneven portion is formed at the tip of the connection end 21 a in a direction orthogonal to the axis of the upper chord material 21. Since the connecting end 21a is formed in a flat shape that is long in the axial direction of the hub 26 (see FIG. 8), a strong joint structure is formed against the external force in the axial direction of the hub 26. Is done.

  Since the lower chord material 23 has the same configuration as the upper chord material 21, a detailed description thereof will be omitted.

  As with the upper chord member 21 and the lower chord member 23, the lattice material 25 is obtained by processing a hollow extruded shape made of an aluminum alloy, and is flattened at both ends as shown in FIGS. 7 (c) and 7 (d). The connection end 25a has a shape. Moreover, although the uneven | corrugated | grooved part is formed in the front-end | tip of the connection end part 25a, the direction is the direction which makes angle (alpha) (henceforth coin angle (alpha)) with respect to the axis line of the lattice material 25. Note that the cross-sectional shape of the connection end 25a is the same as the cross-sectional shape of the connection end 21a (23a) of the upper chord member 21 (lower chord member 23), and therefore fits into a connection groove 26a of the hub 26 described later. Can do. This fitting can also be performed by press fitting. The lattice material 25 is connected to the hub 26 in a state where the axial direction thereof is inclined by the coin angle α with respect to the axial direction of the hub 26.

(Nodal member)
As shown in FIG. 8, the hub 26 has a cylindrical shape, and a plurality of connection grooves 26 a (vertical grooves) are formed on the outer peripheral surface of the hub 26 along the axial direction of the hub 26. A bolt through hole 26b (through hole) is formed at the center thereof. The hub 26 is made of an extruded shape made of an aluminum alloy, and the connection groove 26a and the bolt through hole 26b are formed when the aluminum alloy is extruded. The hub 26 may be manufactured by casting.

  The connection groove 26a of the hub 26 has the same cross-sectional shape as the distal end portion of the connection end 21a (23a) of the upper chord member 21 (or the lower chord member 23), and the connection end 21a (23a) can be fitted therein. Further, the inner wall surface of the connection groove 26a is formed with an uneven portion that engages with the uneven portion of the connection end portion 21a (23a). In the present embodiment, eight connection grooves 26a are formed radially, and the central angle of adjacent connection grooves 26a is 45 degrees (see FIGS. 8 and 11). However, the shape of the hub 26 and the connection grooves 26a The number and the arrangement angle may be appropriately changed according to the number and angle of members connected to the hub 26.

  Further, a groove filling member 26c having the same size and shape as the connection groove 26a is inserted into the connection groove 26a to which the upper chord member 21, the lower chord member 23 or the lattice member 25 is not connected. In the present embodiment, the length of the connection groove 26 a of the hub 26 is adjusted to the length (width) of the connection end 25 a of the lattice material 25, so that the lower chord material 23 (upper chord material 21) is connected to the lower end of the hub 26. When inserted up to, a gap is formed above. In this case, the groove filling member 26d is inserted above the connection end portion 23a (21a) of the lower chord member 23 (upper chord member 21) so that the connection position of the lower chord member 23 (upper chord member 21) does not shift. .

  When the upper chord member 21 (lower chord member 23) and the lattice member 25 are connected to the hub 26, the connection end portion 21a (23a) of the upper chord member 21 (lower chord member 23) and the connection end portion 25a of the lattice member 25 are formed. What is necessary is just to fit the uneven | corrugated | grooved part made into the connection groove | channel 26a from the upper surface side (or lower surface side) of the hub 26. FIG. At this time, since welding or a special tool is not required, workability is good. Note that an adhesive or the like may be poured into the connection groove 26a in order to fill a minute gap generated between the connection groove 26a and the connection end portions 21a (23a) and 25a.

  As shown in FIGS. 5, 10, and 11, among the hubs 26 constituting the outer peripheral edge of the upper frame 22, the hubs 26 arranged along the wall surface 2 a of the building 2 are intermittently connected to the wall surface 2 a. Has been.

  A connection shoe 35 that supports a connection plate 36 connected to the hub 26 is fixed to the wall surface 2a via a bolt B11. As shown in FIGS. 10 and 11, the connecting shoe 35 includes a base portion 35 a that contacts the wall surface 2 a and a pair of holding plates 35 b and 35 b that hold the connecting plate 36 from both sides in the thickness direction. . The connection plate 36 has a connection end 36 a having a cross section equivalent to that of the connection groove 26 a of the hub 26 at the tip.

  The connecting plate 36 is fixed to the hub 26 when the truss structure 20 is assembled. When the truss structure 20 is fixed to the support column 50, the connecting plate 36 is fixed to the clamping plates 35 b and 35 b of the connecting shoe 35 via the bolts B <b> 12 and the nuts N. At this time, there is one bolt B12, and the truss structure 20 is pin-coupled to the wall surface 2a.

  As shown in FIGS. 8, 9, and 13, a washer 26 e for preventing the lower chord member 23 and the lattice member 25 from slipping out is attached to the upper surface of the hub 26 constituting the lower frame 24. The washer 26e has an outer diameter equivalent to that of the hub 26.

  Of the hubs 26 constituting the lower surface frame 24, the lower chord material 23 and the lattice material 25 are prevented from coming out on the lower surface of the hub 26 disposed on the upper side of the column 50, and a lid portion of the column 50 is configured to constitute the column 50. A lid plate material 27 for connection to the is attached. The lid plate material 27 has an outer shape equivalent to that of the support column 50 (square in this embodiment), and is configured to protrude outward from the outer periphery of the hub 26. A bolt through hole 27 a (through hole) for fixing the lid plate material 27 to the hub 26 is formed in the center of the lid plate material 27, and the lid plate material 27 is attached to the column 50 near the periphery. A plurality of bolt through holes 27b (through holes) into which bolts B2 (see FIGS. 9 and 13) for fixing to the upper end are inserted are formed. The bolt through hole 27a at the center of the lid plate material 27 has the same diameter as the bolt through hole 26b of the hub 26 and is provided so as to communicate with the bolt through hole 26b.

  The washer 26e and the lid plate material 27 are fixed to the hub 26 by bolts B1 and nuts N inserted into the bolt through holes 26b of the hub 26.

  As shown in FIGS. 9 and 10A, the lower chord member 23 and the lattice member 25 are pulled out from the lower surface of the hub 26 disposed above the reinforcing member 30 among the hubs 26 constituting the lower surface frame 24. And a washer 26f is attached to serve as a spacer between the reinforcing member 30 and the reinforcing member 30. The washer 26 f has an outer diameter equivalent to that of the hub 26 and has a thickness equivalent to that of the lid plate material 27.

  The washer 26e and the washer 26f are fixed to the hub 26 integrally with the reinforcing member 30 by bolts B1 and nuts N inserted into the bolt through holes 26b of the hub 26.

  As shown in FIG. 10A, a washer having the same shape as the washer 26e provided on the upper surface is formed on the lower surface of the hub 26 that is not connected to the support 50 or the reinforcing member 30 among the hubs 26 constituting the lower surface frame 24. 26e is attached.

  These washers 26e, 26e are fixed to the hub 26 by bolts B1 and nuts N inserted into the bolt through holes 26b of the hub 26. In this case, when the bolt B1 is inserted from the lower side and the nut N is screwed onto the front end of the bolt B1 on the upper side of the hub 26, the front end portion of the bolt B1 and the nut N are hidden when viewed from the lower side. To do.

  In addition, in order to cover the bolt B1 and the nut N and to hide the part to which the washer 26e is attached, a cap (not shown) may be attached to further improve the aesthetic appearance.

  As shown in FIGS. 9 and 10A and 13, a washer 26 e for preventing the upper chord material 21 and the lattice material 25 from slipping out is attached to the lower surface of the hub 26 constituting the upper frame 22.

  A joist 12 for supporting the floor material 10 and preventing the upper chord material 21 and the lattice material 25 from coming off is attached to the upper surface of the hub 26 constituting the upper frame 22. The joist 12 is arranged to extend in the short direction of the floor surface 11 (in this embodiment, the direction orthogonal to the wall surface 2a of the building 2), and a hub 26 is provided in the longitudinal direction of the floor surface 11. They are arranged parallel to each other with an interval (the length of the upper chord material 21) (see FIG. 4). The joist 12 is bridged and fixed on top of the plurality of hubs 26 of the upper surface frame 22 arranged in a direction orthogonal to the wall surface 2 a of the building 2.

  The joist 12 is made of an extruded shape made of aluminum alloy having a rectangular cross section. A hole 12 a through which the handrail support column 91 of the handrail 90 passes is formed in the upper portion of the joist 12. The lower end portion of the handrail support 91 is inserted into the joist 12 and connected to the upper portion of the hub 26. .

  The washer 26e and the joist 12 are fixed to the hub 26 by bolts B1 and nuts N inserted into the bolt through holes 26b of the hub 26.

(Floor material)
As shown to (a) of FIG. 10, the flooring 10 is arrange | positioned along the longitudinal direction (in this embodiment, a direction parallel to the wall surface 2a of the building 2) of the floor surface 11, and the joist 12 Fixedly supported. The flooring 10 is composed of a base material 10a having a rectangular cross section and a finishing material 10b fixed to the upper part of the base material 10a.

  As shown in FIG. 10B, the base material 10 a is fixed to the joist 12 by fixing the bottom portion thereof and the upper surface portion of the joist 12 with a drill screw D. A hole 10c for inserting a drill screw D is formed on the upper surface of the base material 10a. The base material 10a is made of an extruded shape made of an aluminum alloy, and a protruding line 10d is formed at one end in the width direction, and a recessed groove 10e is formed at the other end. The joining strength between the base materials 10a and 10a is enhanced by engaging the protruding strips 10d and the concave grooves 10e of the adjacent base materials 10a and 10a with each other. A pair of locking ridges 10f and 10g for locking the finishing material 10b are formed on the upper portion of the base material 10a. One locking ridge 10f is formed in a bowl shape whose tip is bent inward in the width direction, and the other locking ridge 10g is formed in a flat plate shape extending upward. When attaching the finishing material 10b, after locking one end surface in the width direction of the finishing material 10b in which the groove 10h is formed to the locking projection 10f from obliquely above, the finishing material 10b is tilted horizontally, It is made to fit between the stop ridges 10f and 10g.

  The finishing material 10b is composed of a resin wood-tone member, and has weather resistance. The finishing material 10b has grooves 10h and 10h formed on both sides in the width direction. In addition, the material of the finishing material 10b is not restricted to resin, You may comprise the product made from aluminum alloy, or a wooden member.

  In addition, the shape of the flooring 10 is not limited to the shape of FIG. 10, For example, a form as shown to (a) of FIG. 12 may be sufficient. In the floor material 10 ′ of FIG. 12A, the base material 10 a ′ has a drainage basin 10 i. The drainage basin 10i is formed at one end in the width direction of the base material 10a ', and is configured to be positioned below the gap between the adjacent finishing materials 10b and 10b. The drainage basin 10i is formed such that the lower plate member of the base material 10a 'extends outward in the width direction and the tip thereof is bent upward. A recessed groove 10e is formed at the leading edge of the drainage basin 10i, and a protrusion 10d having a shape corresponding to the recessed groove 10e is formed at the other end of the base material 10a '. The drainage basin 10i of the material 10a 'comes into contact. The water that has flowed into the drainage basin 10i may be guided to a drainage port by a drainage basin (not shown) provided at the longitudinal end of the flooring 10 ', or each drainage without a drainage basin. You may make it flow out from the eaves 10i.

  A pair of locking projections 10f and 10f for locking the finishing material 10b are formed on the upper portion of the base material 10a. In the present embodiment, both of the pair are formed with hook-shaped locking ridges 10f whose tips are bent inward in the width direction, and are configured such that water such as rainwater can easily flow into the drainage basin 10i. In addition, when attaching the finishing material 10b to the base material 10a ′, the grooves 10h and 10h formed on the one end surface in the width direction of the finishing material 10b from the side surface in the longitudinal direction of the flooring material 10 ′ are connected to the locking protrusions 10f, While being formed into 10f, it is inserted along the longitudinal direction.

  Further, the shape of the flooring 10 may be a form as shown in FIG. In the floor material 10 ″ of FIG. 12B, the base material 10a ″ has a drainage basin 10i, and a drill screw plate portion 10j is formed outside thereof. The drill screw plate portion 10j extends outward from the lower end of the drainage basin 10i and is partitioned from the drainage basin 10i via the partition wall 10k at the end of the drainage basin 10i. The partition wall 10k has a height equivalent to the thickness of the base material 10a ″, and its upper end is configured to abut against the lower surface of a cover portion 10m described later. Also, a drill screw plate portion. A concave groove 10e is formed at the tip of 10j, and a protrusion 10d having a shape corresponding to the concave groove 10e is formed at the other end of the base material 10a ". The plate portion 10j is in contact with the concave groove 10e at the tip. A cover portion 10m that covers a part of the drill screw D and the drainage basin 10i is formed on the upper end of the other end of the base material 10a ″. A locking ridge 10f is formed at the tip of the cover portion 10m. A hanging part 10n is formed at the lower part of the tip of the cover part 10m.

  In this way, the upper portion of the drill screw plate portion 10j on one end side of the base material 10a ″ is opened, and the cover portion 10m is formed on the other end side of the base material 10a ″. After fixing the material 10a ″ to the joist 12, if the adjacent substrate 10a ″ is fixed, the drill screw D is covered by the cover portion 10m. That is, when the drill screw D is tightened, the drill screw plate portion 10j is opened upward (refer to the right side of FIG. 12B), so that the upper surface of the base material 10a ″ as in the above embodiment. It is not necessary to provide a screw hole on the substrate 10. This prevents water from entering the substrate 10 a ″. Further, since the cover portion 10m is arranged at the upper portion of the drill screw D, there is no hole communicating with the outside, and the drill screw D has a height equivalent to the thickness of the base material 10a ″. In particular, the partition wall 10k is in contact with the lower surface of the cover portion 10m, and a hanging portion 10n is formed at the tip of the cover portion 10m. Since it is formed, even if the drainage basin 10i overflows, an air layer is formed in the vicinity of the upper end of the partition wall 10k, and water does not get over the partition wall 10k. Water is not applied to the drill screw D, and rust can be reliably prevented even when the drill screw D is made of steel or the like.

(handrail)
As shown in FIGS. 1 and 4, the handrail 90 includes a handrail support 91, a handrail support 92 provided between adjacent handrail support 91, 91, and a lattice 93. .

  The handrail support portion 91 is disposed on the upper portion of the hub 26 located on the outer peripheral edge of the upper surface frame 22, and is fixed with bolts B <b> 1 and nuts N with the joists 12 interposed therebetween. The lattice portion 93 is configured by appropriately combining plate materials 93 a between the handrail support column portions 92. In the present embodiment, the lattice portion 93 is configured by combining the plate material 93a with an X-shaped lattice, but is not limited to the lattice and may have any design. For example, a vertical beam shape, a horizontal beam shape, a vertical and horizontal grid shape, a panel shape, or a panel provided with punch holes may be used.

(Support)
Next, the column 50 will be described mainly with reference to FIGS. 9 and 13 to 16.

  As shown in FIG. 5, the support columns 50 are provided at lower portions of the four corners of the lower surface frame 24, and support the truss structure 20 and the floor material 10 (see FIG. 1). In the present embodiment, the number of columns 50 is four, but it goes without saying that the number may be appropriately changed according to the area and shape of the floor surface 11.

  As shown in FIGS. 9 and 13 to 16, the support column 50 includes a support column main body 51 having a hollow portion 51 a at least at both upper and lower ends, and an insertion portion 52 inserted into the hollow portion 51 a.

  As shown in FIG. 13 and FIG. 14, the column main body 51 is made of an aluminum alloy extruded profile, and is constituted by a square pipe having a square cross section. On each outer surface of the column main body 51, a recess 51b is formed over the entire length in the intermediate portion in the width direction, and a projection 51c corresponding to the recess 51b is formed over the entire length on each inner surface. ing. The irregularities formed by the concave portions 51b and the convex portions 51c serve as reinforcing ribs, and the strength of the column main body portion 51 is increased. A plurality of through-holes 51d (see FIG. 13) through which a bolt B3 for fixing the insertion portion 52 is inserted are arranged in the upper end portion of the side surface of the column main body 51 in the concave portion 51b of each surface in a vertical direction. In the embodiment, two positions are formed for each surface. In addition, among the bolts B3 for fixing the insertion part 52, the bolts B3 provided at the portions to which the reinforcing members 30 are connected also fix the reinforcing members 30 together.

  As shown in FIG. 13 and FIG. 16, a through hole 51 d through which a bolt B <b> 3 for fixing the insertion portion 52 to the support 50 is inserted into the recess 51 b of each surface at the lower end of the side surface of the support body 51. A plurality (three in each embodiment) are formed side by side in the vertical direction.

  As shown in FIGS. 13 to 16, the insertion portion 52 is made of an extruded shape made of an aluminum alloy, and is constituted by a square pipe having a square cross section smaller than that of the column main body portion 51. 52a. The outer peripheral shape of the insertion portion 52 is formed to be equivalent to the inner peripheral shape of the column main body 51, and the insertion portion 52 is configured to be fitted into the hollow portion 51 a of the column main body 51.

  A concave portion 52b is formed on each outer surface of the insertion portion 52 in accordance with the convex portion 51c on the inner surface of the column main body 51, and a convex portion 52c is formed on each inner surface at a position corresponding to the concave portion 52b. Has been. A plurality of screw holes 52d, in which the bolts B2 are screwed, are formed in the recesses 52b on each surface of the insertion portion 52 in the vertical direction. The screw hole 52 d is configured to communicate with the through hole 51 d of the column main body 51. The number of screw holes 52d is the same as the number of through holes 51d in the column main body 51, and two screw holes 52d in the insertion portion 52 to be inserted into the upper end of the column main body 51 are provided on each surface. Thus, there are three screw holes 52d of the insertion portion 52 inserted into the lower end portion of the column main body portion 51 for each surface. The depth of the concave portion 52b provided with the screw hole 52d is smaller than the protruding length of the convex portion 52c, and the portion provided with the screw hole 52d is formed thick.

  As shown in FIG. 14B, a rib 52e extending inward of the hollow portion 52a is formed on the inner surface of the convex portion 52c. The ribs 52e are formed to extend from the respective surfaces of the four convex portions 52c, and are connected in a cross shape at the center of the hollow portion 52a to form a rib coupling body 52f. As shown in FIGS. 14B and 15C, the insertion portion 52 inserted into the upper end portion of the column main body portion 51 protrudes from the lower end portion of the hub 26 to the upper end portion of the rib coupling body 52f. A notch 52g for accommodating the tip of the bolt B1 and the nut N is formed. The notch portion 52g is formed by cutting each rib 52e into a rectangular shape from the connecting portion side at the center of the hollow portion 52a.

  As shown in FIG. 14B, the four corners of the insertion portion 52 protrude inward and are formed thick. Screw holes 52 h are respectively formed along the longitudinal direction of the column 50 in the thick portions at the four corners of the upper end of the insertion unit 52 to be inserted into the upper end of the column main body 51. As shown in FIG. 13, these screw holes 52 h are formed so as to communicate with the bolt through holes 27 b formed in the lid plate material 27, and bolts B <b> 2 for fixing the hub 26 to the column 50 are screwed. Combined.

  As shown in FIG. 16, screw holes 52 h are respectively formed along the longitudinal direction of the column 50 in the thick portions at the four corners of the lower end of the insertion portion 52 to be inserted into the lower end of the column main body 51. . These screw holes 52h are formed so as to communicate with bolt through holes 53a formed in the base plate 53, and bolts B4 for fixing the base plate 53 to the column 50 are screwed together.

  As shown in FIGS. 13 and 16, the base plate 53 is for fixing the support column 50 to the foundation K, and has a square shape in plan view. A plurality of bolt through-holes 53a are formed at the connection portion of the base plate 53 with the support column 50. An enlarged diameter portion 53b (see FIGS. 16B and 16C) is formed at the bottom of the bolt through hole 53a so as to accommodate the head of the bolt B4. A plurality of bolt through-holes 53c (four locations in the present embodiment) through which anchor bolts 54 extending from the foundation K pass are formed outside the connection portion of the base plate 53 with the support column 50. In the central portion of the base plate 53, a drain hole 53d is formed to allow moisture that has entered the support column 50 to escape.

(Reinforcing member)
Next, the reinforcing member 30 will be described mainly with reference to FIGS. 6 and 9 to 13.

  As shown in FIGS. 5 and 6, the reinforcing member 30 is a member that reinforces the truss structure 20 and is viewed in plan along the lower chord members 23, 23. It is arranged in a rectangular shape. The reinforcing member 30 is provided between the upper ends of the adjacent struts 50 and 50, and is connected to the hub 26 that connects the lower chord members 23 and 23 at a predetermined pitch.

  As shown in FIGS. 13 and 15, the reinforcing member 30 is formed in the shape of a long square pipe, a groove-shaped member 31 having a U-shaped cross section, and a lid plate that closes the opening of the groove-shaped member 31. 32. Both the groove-shaped member 31 and the lid plate 32 are made of extruded shapes made of aluminum alloy. The groove-shaped member 31 includes a pair of flange portions 31a and 31a that are parallel to each other and a web portion 31b that connects them. The web portion 31b is formed with a through hole 31c through which a bolt B5 for connecting to the support column 50 is inserted. A plurality of through holes 31c are formed in the vertical direction (two in the present embodiment), and are configured to prevent the reinforcing member 30 from rotating and to be fixed.

  As shown in FIGS. 6, 9, and 13, a bolt B <b> 1 that is inserted into a bolt through-hole 26 b of the hub 26 located on the upper flange portion 31 a when connected to the reinforcing member 30. Through holes 31d through which are inserted are formed at predetermined intervals. The hub 26 is fixed to the reinforcing member 30 by inserting the bolt B1 through the through hole 31d and the bolt through hole 26b of the hub 26 and tightening with the nut N.

  As shown in FIG. 13, engaging grooves 31e and 31e extending in the longitudinal direction are formed on the mutually opposing surfaces of the pair of flange portions 31a and 31a, respectively.

  On both sides of the lid plate 32 in the width direction, ridges 32a and 32a that engage with the engaging grooves 31e and 31e of the groove-shaped member 31 are formed. By pressing the lid plate 32 against the groove-shaped member 31 from the opening side, the ridges 32a and 32a are engaged with the engaging grooves 31e and 31e, and the lid plate 32 is integrally fixed to the groove-shaped member 31. A square pipe-shaped reinforcing member 30 is formed.

  As shown in FIGS. 13 and 15, the reinforcing member 30 is coupled to the support column 50 via a connection bracket 33 (bracket). The connection bracket 33 is configured by an extruded shape member made of an aluminum alloy having an L-shaped cross section. Through holes 33 a and 33 a communicating with the through holes 31 c and 31 c of the reinforcing member 30 are formed in one flat plate portion (a surface orthogonal to the surface of the column main body portion 51) having an L-shaped cross section of the connection bracket 33. The one flat plate portion is disposed so as to contact the inner surface of the web portion 31b of the groove-shaped member 31, and is fixed by a bolt B5 and a nut N. Through holes 33b and 33b communicating with the through holes 51d and 51d of the column main body 51 are formed in the other flat plate portion (the surface contacting the surface of the column main body 51) having an L-shaped cross section. A convex portion 33 c that engages with the concave portion 51 b on each outer surface of the column main body 51 is formed on the surface of the flat plate portion on the side in contact with the column main body 51. The convex portion 33c has the same width as the concave portion 51b, and the convex portion 33c engages with the concave portion 51b of the column main body portion 51, so that the connection bracket 33 can be easily positioned in the width direction. It can be carried out.

(Stairs)
Next, the staircase 70 will be described mainly with reference to FIGS. 1 to 3 and FIGS. 17 and 18.

  As shown in FIG. 1 to FIG. 3 and FIG. 17, the staircase 70 is provided for ascending and descending on the flooring 10 from another floor level such as the ground. The stairs 70 includes a tread 71, a girder 72 that supports the tread 71, and a handrail 73.

  The girders 72 are inclined according to the gradient of the staircase 70, and are provided on both sides in the width direction of the staircase 70 so as to be parallel to each other. As shown in FIG. 17, the girder 72 is made of an extruded shape made of aluminum alloy having a vertically long cross section (see FIG. 17B), and a reinforcing rib 72a is formed along the longitudinal direction in the inside thereof. Is formed.

  A tread plate receiving material 74 for supporting the tread plate 71 is provided between the adjacent girder members 72 and 72. The tread board receiving material 74 is provided at a predetermined pitch along the longitudinal direction of the beam member 72, and is fixed to the upper surfaces of the beam members 72, 72 by fastening members such as screws. The tread board receiving material 74 has an upper end surface 74 a that is horizontal when fixed to the beam members 72, 72. A through hole 74b through which a bolt B6 for fixing the tread 71 is inserted is formed in the upper end surface 74a.

  As shown in FIG. 17 (a), the tread 71 is made of an aluminum alloy extruded shape having a horizontally long cross section, and reinforcing ribs 71a and 71a are formed in the longitudinal direction in the inside thereof. . A pair of ridges 71c and 71c for forming a groove 71b for locking the nut N are formed on the inner bottom of the tread 71, and the tread 71 is fixed to the tread receiving member 74 at the bottom of the groove 71b. A through hole 71d is formed through which a bolt B6 is inserted. When fixing the tread 71 to the tread receiving member 74, the nut N is inserted and locked at a predetermined position of the groove 71b, and the bolt B6 is passed through the tread receiving member 74 from the lower side of the tread receiving member 74. The holes 74 b and the through holes 71 d of the tread plate 71 are inserted and screwed into the nuts N.

  Note that lid members 71e are fixed to both ends of the tread plate 71 in the longitudinal direction (the width direction of the staircase 70) by screws.

  As shown in FIGS. 1 and 3, the handrail 73 includes a support column 73 a fixed to the end portion of the tread plate 71, and a handrail portion 73 b provided between the support columns 73 a and 73 a adjacent in the vertical direction, It is comprised with the grating | lattice part 73c.

  The girder 72 is connected to a base plate 75 whose lower part is fixed to the foundation K by bolts B7 and nuts (not shown). In the present embodiment, the foundation K on which the girder 72 is fixed has stairs formed according to the ground shape of the land, and the installation level of the stairs 70 is adjusted. According to such a configuration, the dimensions of the beams 72 and handrails 73 of the stairs 70 can be unified, and productivity can be improved.

  As shown in FIGS. 1, 3, and 17, the upper portion of the girder 72 is connected to and supported by the reinforcing member 30. Specifically, a support shoe 76 for fixing the staircase 70 is provided on the outer peripheral surface of the reinforcing member 30, and a bracket 77 is provided below the upper end of the girder 72. , And are connected via a joint material 78.

  The support shoe 76 is attached to the outer surface of the web portion 31 b of the groove member 31 of the reinforcing member 30. The support shoe 76 includes a base portion 76a that contacts the web portion 31b, and a pair of clamping plates 76b and 76b that clamp the joint material 78 from both sides in the thickness direction. A through hole 76c through which a bolt B8 for fixing to the reinforcing member 30 is inserted is formed in the base portion 76a. The sandwiching plates 76b and 76b are arranged with an interval corresponding to the thickness of the joint material 78, and a through hole 76d through which a bolt B9 for fixing the joint material 78 is inserted is formed in the intermediate portion in the height direction. ing. Here, since the joint material 78 is fixed to the support shoe 76 with a single bolt B9, the joint material 78 can rotate around the bolt B9. Thereby, vibration of the staircase 70 and thermal contraction of the beam member 72 and the support column 50 can be absorbed.

  The bracket 77 is configured by a pair of plate members 77a and 77a that sandwich the beam member 72 and the joint member 78 from both sides in the thickness direction. In the plate material 77a, a portion that comes into contact with the beam member 72 and a portion that comes into contact with the joint material 78 are integrally formed via a stepped portion 77b. A plurality of through holes 77c for bolts B10 and B10 for holding the beam member 72 and the joint material 78, respectively, are formed in the portion that makes contact with the beam member 72 and the portion that makes contact with the joint material 78, respectively. When the beam member 72 is clamped by the bracket 77, the beam member 72 can be prevented from being deformed by inserting the spacer 79 into the beam member 72 and tightening the bolt B10 and the nut N.

  The joint material 78 is configured to extend obliquely upward from the support shoe 76 and is substantially orthogonal to the longitudinal direction of the beam member 72.

  In addition, in FIG. 17, although the form which fixes the staircase 70 to the outer peripheral surface of the reinforcement member 30 is shown, the fixing structure of the staircase 70 is not restricted to this. For example, when the staircase 70 is provided at the end of the floor surface 11 in the longitudinal direction (the direction parallel to the wall surface of the building 2), the beam 72 of the staircase 70 may be fixed to the joist 12.

  In this case, as shown in FIG. 18, a support shoe 80 made of a pair of angle members having an L-shaped cross section is fixed to the side portion of the joist 12 (inside the floor surface 11). The support shoe 80 is provided so as to extend downward from the joist 12 and fixes the girder 72 at the lower portion thereof. That is, the upper part of the girder 72 is suspended from the joist 12 and fixed. A pair of support shoes 80 are provided for one girder 72, and the girder 72 is sandwiched from both sides in the thickness direction at the lower part thereof. Two bolt through holes 80a are formed in the lower portion of the support shoe 80 in the vertical direction. When the support member 80 clamps the beam member 72, the spacer member 72 is inserted into the beam member 72 and the bolt B10 and a nut (not shown) are tightened to prevent the beam member 72 from being deformed.

(Deck structure construction procedure)
In constructing the deck structure 1 having such a configuration, the support 50 and the truss structure 20 are first assembled.

  First, in order to assemble the column 50, as shown in FIGS. 13 and 16, after inserting the insertion portion 52 into the lower end portion of the column main body 51 of the column 50, the bolt B <b> 3 is removed from the four surface directions of the column main body 51. It inserts into the through-hole 51d, and is screwed and fixed to the screw hole 52d of the insertion part 52. Here, since the portion provided with the screw hole 52d is formed thick, it can counter the tightening force of the bolt B3 and increase the fixing strength between the column main body 51 and the insertion portion 52. be able to. Further, the strength of the insertion portion 52 is improved by the rib connecting body 52f formed by connecting the ribs 52e extending inward of the hollow portion 52a in a cross shape, and the strength of the entire support column 50 is improved. . Thereafter, after the base plate 53 is brought into contact with the lower portion of the support column 50, the bolts B4 are inserted into the bolt through holes 53a of the base plate 53 from below, and screw holes 52h formed at the four corners of the lower end portion of the insertion portion 52. Screw in and fix. At this time, since the portion where the screw hole 52h is provided is formed with a thicker periphery, it can counter the tightening force of the bolt B4, and the fixing strength between the base plate 53 and the insertion portion 52 can be increased. Can be increased. Moreover, since the enlarged diameter part 53b is formed in the bottom part of the through-hole 53a for bolts, the head part of the volt | bolt B4 is accommodated and it does not protrude below the base plate 53. FIG.

  Thereafter, as shown in FIGS. 13 and 15, after inserting the insertion portion 52 into the upper end portion of the column main body 51 of the column 50, the bolt B <b> 3 is inserted into the through hole 51 d from the four surface directions of the column main body 51. Then, the screw hole 52d of the insertion portion 52 is screwed and fixed. At this time, in a state where the connection bracket 33 is in contact with the column main body 51 on the surface to which the reinforcing member 30 is attached, the bolt B3 is inserted from the outside to connect the connection bracket 33, the column main body 51, and the insertion unit. 52 is fixed integrally. Here, since the portion provided with the screw hole 52d is formed thick, it can resist the tightening force of the bolt B3, and only the fixing strength between the column main body portion 51 and the insertion portion 52 is sufficient. In addition, the fixing strength between the reinforcing member 30 and the support 50 can be increased.

  The construction of the support 50 described above may be performed in advance at the factory, or may be performed before construction on the construction site.

  To construct the truss structure 20, as shown in FIGS. 8 and 13, the upper chord member 21, the lower chord member 23, and the lattice member 25 are connected to the hub 26, respectively. At this time, in the hub 26, the upper chord member 21 and the lower chord member are simply fitted into the connection groove 26a with the connection end portion 21a (23a) of the upper chord member 21 (lower chord member 23) and the connection end portion 25a of the lattice member 25. 23 and the lattice material 25 can be connected at a predetermined angle. In addition, workability is very good because no welding or special tools are required. In addition, since the washer 26e, 26e and the like are attached to the upper and lower surfaces of the hub 26, the washer 26e, 26e and the like serve as a lid to prevent the upper chord member 21, the lower chord member 23, and the lattice member 25 from coming out. be able to.

  In particular, the hub 26 used for the lower surface frame 24 and the portion of the hub 26 connected to the column 50 has a lid plate material 27 attached to the lower surface thereof and a washer 26e attached to the upper surface thereof. The material 27 and the washer 26e serve as a lid, and can prevent the lower chord material 23 and the lattice material 25 from coming out.

  Moreover, in the hub 26 used for the upper surface frame 22, the joist 12 is attached to the upper surface and the washer 26e is attached to the lower surface. Therefore, the joist 12 and the washer 26e serve as a lid, and the upper chord material 21 and the lattice material are used. 25 can be prevented from coming out. Further, since the joists 12 connect the adjacent hubs 26, the joists 12 not only support the flooring 10 but also serve as a reinforcing member, so that the strength of the truss structure 20 can be improved. .

  The hub 26 disposed on the upper portion of the reinforcing member 30 is provided with a washer 26e on the upper surface and a washer 26f on the lower surface, and is temporarily fixed with bolts B1 and nuts N.

  The construction of the truss structure 20 described above may be performed in advance at a factory, or may be performed before construction on a construction site. In addition, when assembling the truss structure 20 in a factory, it may be divided and assembled for each predetermined size, and these blocks may be connected on site. If it does in this way, conveyance and handling will become easy.

  Next, as shown in FIG. 16, the column 50 is built on the foundation K, and the anchor bolt 54 (see FIG. 16) extending from the foundation K is inserted into the bolt through hole 53 c and tightened with the nut N. At this time, since the head of the bolt B4 does not protrude below the base plate 53, it is not necessary to form a notch or the like in the foundation K, and the workability is good.

  Then, as shown in FIGS. 6 and 13, after fixing the four columns 50, the reinforcing member 30 is bridged between the columns 50 and fixed. Specifically, after the groove-shaped member 31 without the lid plate 32 attached is bridged between the columns 50 and 50 and the inner surface of the web portion 31b is brought into contact with the connection bracket 33, the bolt B5 is attached. The groove member 31 is inserted into the through hole 31 c and the through hole 33 a of the connection bracket 33 from the outside, and is tightened and fixed by the nut N. Thereafter, the lid plate 32 is pressed against the groove-shaped member 31 from the opening side, and is integrally fixed to the groove-shaped member 31. Thereby, a square pipe-shaped reinforcing member 30 is formed. Here, the openings at both ends of the reinforcing member 30 are closed by the flat plate portions of the connection bracket 33 that are in contact with the surface of the column main body 51.

  Thereafter, as shown in FIGS. 9 and 10, the truss structure 20 is built on the support 50 and the hub 26 is placed on the support 50. At this time, since a notch 52g (see FIG. 15C) is formed at the upper end of the rib coupling body 52f of the insertion portion 52, the tip of the bolt B1 protruding from the lower end of the hub 26 And the nut N are accommodated in the notch 52g without interfering with the insertion portion 52.

  Then, from above the lid plate material 27 attached to the lower surface of the hub 26, the bolt B2 is inserted into the bolt through hole 27b of the lid plate material 27 and screwed into the screw hole 52h of the insertion portion 52 of the support column 50. As a result, the truss structure 20 is fixed to the column 50.

  Thus, since the lid plate material 27 that extends outward from the outer peripheral surface of the hub 26 is provided on the lower surface of the hub 26, the hub 26 can be mounted by simply screwing the bolt B2 from the upper side of the lid plate material 27. It can fix to the support | pillar 50, and construction of fixation is very easy. Further, the upper chord member 21, the lower chord member 23, and the lattice member 25 can be assembled integrally on the ground of the factory or the site, and the truss structure 20 can be lifted and fixed to the support column 50 in a state of being integrally fixed. The assembly work of the structure 20 can be performed in a short time, the high-place work at the site can be greatly shortened, and the construction time for the fixing work can be greatly shortened, so that the overall construction time can be shortened.

  On the other hand, the hub 26 on the reinforcing member 30 temporarily removes the temporarily fixed nut N, and inserts the bolt B1 into the through hole 31d of the flange portion 31a of the groove member 31 of the reinforcing member 30. The hub 26 is fixed to the reinforcing member 30 by tightening with. Thus, since the hub 26 located at the outer peripheral edge of the lower surface frame 24 is fixed to the reinforcing member 30, the strength of the lower surface frame 24 is greatly improved, and the strength of the truss structure 20 as a whole is also greatly improved. . Further, the washer 26f below the hub 26 has the same thickness as the lid frame material 27 and also serves as a spacer, so that the flatness of the lower surface frame 24 is maintained and the strength of the truss structure 20 is not reduced. .

  Furthermore, since the reinforcing member 30 is bridged over the support column 50, the support member 50 and the reinforcing member 30 can constitute a portal frame with high strength. Therefore, since the assembled truss structure 20 is provided on the upper part of the frame, the strength of the deck structure 1 as a whole is increased, and the truss structure 20 is placed on the support 50. It is very stable and easy to fix.

  Next, the flooring 10 and the handrail 90 are sequentially laid on the truss structure 20. At this point, the joist 12 is fixed to the upper portion of the truss structure 20 at a predetermined position, so that it is possible to greatly eliminate the work on site such as positioning and fixing of the joist 12. Furthermore, since the joists 12 are fixed to the upper part of the hub 26, the accuracy of the mounting interval is high and the fixing strength is also high.

  When the construction of the flooring 10 and the handrail 90 is completed, the stairs 70 are attached finally. In the stairs 70, a tread 71, a girder 72, and a handrail 73 are assembled and integrated in advance at a factory or a construction site. A support shoe 76 is attached to the web portion 31 b of the reinforcing member 30, and a bracket 77 and a joint material 78 are attached to the beam member 72. Then, the staircase 70 is built in, and the lower end portion of the beam member 72 is fixed to the foundation K, and the joint material 78 is fixed to the support shoe 76. At this time, since the joint material 78 is fixed to the support shoe 76 with a single bolt B9, work labor at the construction site can be largely omitted. Furthermore, since the staircase 70 is pin-coupled to the support shoe 76 via the bolt B9, vibration of the staircase 70 and thermal contraction of the beam member 72 and the support column 50 can be absorbed.

  As described above, according to the deck structure 1 according to the present embodiment, the long reinforcing member 30 is provided below the lower chord member 23 along the longitudinal direction thereof, thereby providing high strength and an excellent appearance. Further, the strength of the truss structure 20 can be further increased. In particular, in the present invention, the reinforcing member 30 is a long member, and is not plate-shaped like the conventional reinforcing member shown in Patent Document 1, so that the reinforcing member 30 can be used even when the floor surface 11 is large. Is easy to carry and handle, and is easy to construct, and can be used for floors having a large floor area and various shapes.

  In addition, since the deck structure 1 has a base portion constituted by the truss structure 20, the torsional rigidity and the bending rigidity are large, and the overall weight can be reduced. Furthermore, in the deck structure 1 according to the present embodiment, the truss structure 20, the strut 50, the base material 10a of the flooring 10 and the main parts of the structural material such as the joists 12 are respectively made of extruded shapes made of aluminum alloy. Since it is formed, it is lightweight and has high strength, and can be highly durable without deterioration due to sunlight or corrosion due to wind and rain.

  Furthermore, in the deck structure 1 according to the present embodiment, the upper surface frame 22 is formed by connecting the upper chord material 21 in a lattice shape, and the lower surface frame 24 is located at a lower position between the adjacent upper chord materials 21 and 21. Since the lower chord members 23 are connected to each other, the lower frame 24 is smaller than the upper frame 22 in plan view. Therefore, the space for installing the column 50 on the foundation K can be reduced.

  In addition, the truss structure 20 has a converging shape from the upper surface to the lower surface, that is, an inverted triangular shape or an inverted trapezoidal shape in a side view. Therefore, it is excellent in appearance and can exhibit a design effect. Further, the upper surface frame 22 and the lower surface frame 24 are formed by combining the square sets 22a and 24a, respectively, and the lattice material 25 has a square shape obtained by rotating the square sets 22a and 24a by 45 degrees in plan view. The truss structure 20 can give a geometric and novel impression.

  Further, the reinforcing member 30 can reinforce the outer peripheral edge of the lower surface frame 24 to reinforce the lower surface frame 24 as a surface, and can further increase the torsional rigidity and bending rigidity of the truss structure 20.

  Moreover, since the hub (node member) 26 is attached to the upper chord member 21 and the lower chord member 23 and the lattice member 25 is connected to the hub 26, the truss structure 20 can be easily constructed. Further, by changing the dimensions and the number of components of the upper chord member 21, the lower chord member 23, and the lattice member 25, it is possible to flexibly cope with the floor surface 11 having various floor areas and shapes.

  Further, the hub 26 is formed with a bolt through hole 26b along its height direction, and the column 50 has a bolt through hole 27a provided at the upper end thereof so as to communicate with the bolt through hole 26b. Since the lid plate material 27 (lid portion) is provided, the hub 26 and the lid plate material 27 can be easily connected by simply passing the bolt B1 through the bolt through holes 26b and 27a and tightening with the nut N. can do.

  Moreover, the support | pillar 50 is provided with the support | pillar main-body part 51 which has the hollow part 51a at least at the up-and-down both ends, and the insertion part 52 inserted in the up-and-down hollow part 51a, and the insertion part 52 has the screw hole 52h on the upper surface. The lid plate member 27 has a bolt through hole 27b provided so as to communicate with the screw hole 52h on the upper surface of the insertion portion 52, and the insertion portion 52 is formed using the screw hole 52h and the bolt through hole 27b. And the lid plate material 27 are connected to each other, so that the column 50 and the hub can be simply inserted by inserting the bolt B2 from the upper portion of the lid plate material 27 previously attached to the lower surface of the hub 26 toward the insertion portion 52 and screwing them together. 26 can be easily connected, and the labor and time of construction can be greatly reduced.

  Further, the four corners of the insertion portion 52 are formed to be thick and protrude inward, and screw holes 52h are respectively formed along the longitudinal direction of the support column 50 in the thick portion, so that the size is large. While the bolt B2 can be used and the periphery of the screw hole 52h is thick, the fixing strength between the hub 26 and the support column 50 can be increased.

  As described above, since the insertion portion 52 is inserted into the upper and lower hollow portions 51a of the column main body 51 and reinforced intensively, the necessary fixing strength between the column 50, the reinforcing member 30, and the hub 26 can be obtained. At the same time, the intermediate portion of the column main body 51 does not have an unnecessarily large cross-sectional area. Therefore, the weight of the column 50 can be minimized and the weight of the deck structure 1 can be reduced.

  Since the insertion portion 52 has a hollow portion 52a and the portion where the screw hole 52d is provided is formed thick and reinforced, even if the weight of the reinforcing member 30 is large, the insertion portion 52 is thick. Since the strength at the portion is large, the support strength is high, and the reinforcing member 30 can be reliably supported. Therefore, since the high-strength reinforcing member 30 can be provided, it is possible to cope with a large floor area.

  The reinforcing member 30 is connected to the column main body 51 via the connection bracket 33. The insertion unit 52 has a screw hole 52d on its side surface, and the column main body 51 has a through hole 51d on its side surface. The connection bracket 33 has through holes 33b. The bolts B3 are inserted into the through holes 33b and the through holes 51d and screwed into the screw holes 52d. Can be fixed. Further, the connection bracket 33 has a through hole 33a, and the reinforcing member 30 has a through hole 31c. The bolt B5 is inserted into the through hole 33a and the through hole 31c and screwed with a nut N to be reinforced. The member 30 and the column 50 can be easily connected, and the labor and time for construction can be greatly reduced.

  The staircase 70 includes a tread 71 and a girder 72 that supports the tread 71, and the girder 72 is connected to and supported by the reinforcing member 30, so that a force is locally applied to the truss structure 20. The truss structure 20 can support the flooring 10 and the handrail 90 in a high strength and structurally stable state.

  Further, a support shoe 76 for fixing the staircase 70 is provided on the outer peripheral surface of the reinforcing member 30, and a bracket 77 is provided below the upper end of the girder 72. The support shoe 76 and the bracket 77 are joint materials. 78, the position of the staircase 70 can be easily adjusted, and the staircase 70 can be easily connected to the reinforcing member 30 with general-purpose fastening members such as bolts and nuts. And time can be greatly reduced.

  As described above, according to the present embodiment, while utilizing the characteristics of the high strength and excellent appearance that the truss structure 20 has, it is possible to deal with a floor with a large floor area and various shapes, and a deck structure. The object 1 can be easily constructed.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to each above-described embodiment, It can implement by changing suitably. For example, in the present embodiment, the deck structure 1 having the staircase 70 has been described as an example, but it is needless to say that the deck structure 1 may not have the staircase.

  In the present embodiment, the deck structure 1 has been described by taking a form applied as a balcony installed adjacent to the building 2 as an example. However, the present invention is not limited to this, and is applicable to various cases. Applicable. For example, you may utilize as a deck structure which provides a roof in the upper part of a parking space independently of a building.

It is the perspective view which looked at the best form for implementing the deck structure concerning this invention from diagonally upward. It is the front view which showed the best form for implementing the deck structure which concerns on this invention. It is the side view which showed the best form for implementing the deck structure which concerns on this invention. It is the top view which showed the best form for implementing the deck structure which concerns on this invention. It is the top view which showed the truss structure of the deck structure which concerns on this invention. It is the top view which showed the reinforcement member of the deck structure which concerns on this invention. It is the figure which showed the components of a truss structure, (a) is the perspective view which showed the upper chord material and the lower chord material, (b) is the side view which showed the upper chord material and the lower chord material, (c) shows the lattice material (D) is the side view which showed the lattice material. It is a disassembled perspective view for demonstrating a node member. It is the principal part enlarged view which showed the truss structure body of the deck structure which concerns on this invention, Comprising: It is an A line arrow directional view of FIG. It is the principal part enlarged view which showed the truss structure body of the deck structure which concerns on this invention, Comprising: (a) is the B line sectional drawing of FIG. 5, (b) is the C section enlarged sectional view of (a). It is the top view which showed E part of FIG. (A) is the expanded sectional view which showed the other form of the flooring, (b) is the expanded sectional view which showed the further another form of the flooring. It is the disassembled perspective view which showed the truss structure, the support | pillar, and the reinforcement member. It is sectional drawing which showed the support | pillar, Comprising: (a) is sectional drawing which showed the support | pillar main-body part, (b) is sectional drawing which showed the insertion part. It is the figure which showed the relationship between a truss structure, a support | pillar, and a reinforcement member, (a) is a fragmentary sectional top view, (b) is a fragmentary sectional side view, (c) is the FF sectional view taken on the line of (b). . It is the figure which showed engagement with the foundation of a support | pillar, (a) is a fragmentary sectional top view, (b) is a fragmentary sectional side view, (c) is the GG sectional view taken on the line of (b). It is the figure which showed the engagement of a reinforcing member and a staircase, Comprising: (a) is a side view, (b) is a top view. It is the side view which showed the relationship between a joist and a staircase.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Deck structure 10 Floor material 20 Truss structure 21 Upper chord material 22 Upper surface frame 23 Lower chord material 24 Lower surface frame 25 Lattice material 26 Hub (node member)
26b Bolt through hole (through hole)
27 Lid plate member (lid part)
27a Bolt through hole (through hole)
27b Bolt through hole (through hole)
30 Reinforcing member 33 Connection bracket (bracket)
33b Through-hole 50 Strut 51 Strut body 51d Through-hole 52 Insertion section 52d Screw hole 52h Screw hole 70 Stair 71 Step plate 72 Girder material 76 Support shoe 77 Connection bracket (bracket)
78 Joint material

Claims (8)

A deck structure comprising a flooring, a truss structure disposed under the flooring, and a column supporting the flooring and the truss structure;
The truss structure is configured by connecting a plurality of upper chord members to each other with an upper surface frame and a lower surface frame formed by connecting a plurality of lower chord members to each other with a lattice material,
Below the lower chord material, a long reinforcing member is provided along its longitudinal direction,
A node member is attached to the upper chord member and the lower chord member,
The lattice material is connected to the node member,
The nodal member has a through hole formed along its height direction,
The support column has a lid portion having a through hole provided at its upper end so as to communicate with the through hole;
The deck structure, wherein the node member for connecting the lower chord material and the upper end of the support column are connected using the through holes. The upper surface frame is formed by connecting the upper chord members in a lattice shape,
2. The deck structure according to claim 1, wherein the lower surface frame is formed by connecting a plurality of lower chord members positioned below and in the middle of the adjacent upper chord members connected in a lattice shape. The deck structure according to claim 1 or 2, wherein the reinforcing member is disposed along the lower chord member located on an outer peripheral edge of the lower surface frame. The column includes a column main body having hollow portions at least at both upper and lower ends, and an insertion portion inserted into the hollow portion,
The insertion part has a screw hole on its upper surface,
The lid portion has a through hole provided to communicate with the screw hole on the upper surface of the insertion portion,
The deck structure according to any one of claims 1 to 3, wherein the insertion portion and the lid portion are connected using the screw hole and the through hole. The column includes a column main body having hollow portions at least at both upper and lower ends, and an insertion portion inserted into the hollow portion,
The reinforcing member is connected to the column main body through a bracket,
The insertion part has a screw hole on its side surface,
The column main body has a through hole provided on the side thereof so as to communicate with the screw hole on the side of the insertion portion,
The bracket has a through-hole provided so as to communicate with the through-hole on the side surface of the support body.
The said support | pillar and the said bracket are connected using the said screw hole, the said through-hole of the said support | pillar main-body part, and the said through-hole of the said bracket. The any one of the Claims 1 thru | or 4 characterized by the above-mentioned. The deck structure described in 1. The insertion part has a hollow part,
The deck structure according to claim 4 or 5, wherein a portion where the screw hole is provided is formed thick. There is further provided a staircase for ascending and descending on the flooring,
The stair includes a tread board and a girder supporting the tread board,
The deck structure according to any one of claims 1 to 6, wherein the girder is connected to and supported by the reinforcing member. A support shoe for fixing the staircase is provided on the outer peripheral surface of the reinforcing member,
A bracket is provided below the upper end of the girder,
The deck structure according to claim 7, wherein the support shoe and the bracket are connected via a joint material.

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