JP6654375B2 - Truss connection structure - Google Patents

Description

  The present invention relates to a truss joining structure for attaching a roof truss to an eaves girder.

Patent Literature 1 discloses a truss connection piece provided on a metal joint by laying a metal joint between upper surfaces of a pair of adjacent outer wall panels, connecting a panel mounting piece below the metal joint to each outer wall panel. Place the end of the roof truss on the truss connection piece, connect the end of the horizontal brace to the brace connection part provided on the truss connection piece, and install it on the upper surface of the joint hardware so that it is inclined according to the roof gradient A roof panel mounting structure to an outer wall panel in which a roof panel is placed and connected to a piece is disclosed.

Japanese Utility Model Publication No. 07-055215

  However, the conventional structure described above is a structure in which the end of the roof truss is connected to the upper surface of the outer wall panel, and the structure in which the roof truss is connected to the eave girder of the building frame composed of beams (eave girder) and pillars. No particular mention is made of improving the work efficiency when assembling the roof truss to the eaves girder.

  In view of the above circumstances, an object of the present invention is to provide a truss joint structure in which a work of attaching a roof truss to an eaves girder can be efficiently performed.

  In the truss joining structure of the present invention, in order to solve the above-mentioned problem, an attachment member fixed to a joining member joining an eave-side end of an upper chord member and a lower chord member of a roof truss is attached to a eave girder by a fastening member. In a truss joint structure, the mounting member includes a vertical plate portion facing a vertical plate material provided vertically on the eaves girder, and a horizontal plate portion facing a horizontal surface portion above the eaves girder. The vertical plate portion is fixed to the vertical plate member, and the horizontal plate portion is fixed to the horizontal surface portion.

  With the above configuration, for example, when performing an operation of attaching the roof truss lifted by a tow truck to the eaves girder, it can be placed on the horizontal surface of the eaves girder using the horizontal plate portion of the attachment member. Therefore, the work of temporarily fastening using the fastening member is facilitated, and the roof truss can be easily temporarily fixed to the eaves girder. As a result, the above wrecker can be promptly used for mounting the next roof truss, and the work of mounting the roof truss on the eaves girder can be performed efficiently. In addition, the positioning of the roof truss in a state where the horizontal plate portion is placed on the horizontal surface of the eaves girder is a work of merely shifting the roof truss in the longitudinal direction (horizontal direction) of the eaves girder, The work of positioning the roof truss on the eaves girder is also facilitated.

  The joining member may be fixed to the vertical plate portion. According to this, compared with the structure in which the joining member is joined to a plate member provided separately from the vertical plate portion, the number of the plate members can be reduced, so that steel material costs and processing costs can be reduced. Cost reduction can be achieved.

  The eaves girder may be provided with a fixed part integrated eaves girder purlin having a fixing portion for fixing to the eaves girder. According to this, the working time can be reduced as compared with the case where the purlin fixing tool and the eaves-girder purlin are separately mounted.

  The purlin portion may be provided integrally with the horizontal plate portion. According to this, the working time can be reduced as compared with the case where the purlin fixing tool and the eaves-girder purlin are separately mounted.

  The eaves girder is provided with an eaves girder upper purlin and a purlin fastener for fixing the eaves girder upper purlin, and the eaves girder upper purlin is formed by cutting off a part of the lower side of the lip channel steel. It may be. According to this, it is possible to avoid interference between the eaves girder main purlin and the horizontal plate portion.

  ADVANTAGE OF THE INVENTION According to this invention, there exist various effects, such as work which attaches a roof truss to an eaves girder efficiently.

FIG. 1A is an explanatory view showing a truss joint structure according to an embodiment of the present invention, and FIG. 1B is a schematic perspective view showing an eaves girder purlin integrated with a fastener in this truss joint structure. FIG. 3C is a schematic perspective view showing an attachment member in the truss joint structure. It is an explanatory view showing a truss joint structure according to another embodiment of the present invention. FIG. 3 is a schematic perspective view showing an attachment member in the truss joint structure of FIG. 2. It is an explanatory view showing a truss joint structure according to another embodiment of the present invention. FIG. 5 is a schematic perspective view showing an attachment member in the truss joining structure of FIG. 4.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 (A), 1 (B) and 1 (C), the truss joint structure according to the present embodiment has, for example, a top chord member of a roof truss 1 having a triangular shape or a trapezoidal shape. This is a structure in which an attachment member 2A fixed to a joining member 13 joining the 11 and the lower chord member 12 to the eaves side end is attached to the eaves girder 4 by bolts and nuts 3 as fastening members.

  A lattice material (not shown) is connected between the upper chord member 11 and the lower chord member 12. Further, the roof truss 1 is similarly provided with a joining member 13 at the eave side end opposite to the upper chord member 11 and the lower chord member 12 shown in the figure, and is fixed to the joining member 13. The mounting member 2A is similarly mounted to the eaves girder 4 located on the other side by bolts and nuts 3. The eaves girder 4 is supported by a column 81, and the column 81 is fixed to a foundation (not shown).

  The joining member 13 has a concave cross section when viewed from the longitudinal direction of the lower chord member 12, and is fixed to the upper chord member 11 and the lower chord member 12, for example, by welding. A bolt 14 is provided at the bottom of the joining member 13 at a position closer to the eaves side than the eaves-side end of the lower chord member 12 so as to protrude the screw portion thereof downward. The mounting portion of the horizontal brace 82 is fitted to the screw portion of the bolt 14, and the mounting portion is fixed by a nut screwed to the screw portion.

  The eaves girder 4 is made of, for example, an H-section steel, and a vertical plate material 41 is fixed to the edges of the upper and lower flanges on the indoor side by welding or the like in the vertical direction across the upper and lower flanges. In the eaves girder 4, the upper flange forms a horizontal surface portion 42, and the horizontal surface portion 42 is located above the vertical plate 41.

  The mounting member 2A is provided with a first vertical plate portion (vertical plate portion) 21 opposed to the vertical plate material 41 provided on the eaves girder 4, and a position slightly lower than an upper end of the first vertical plate portion 21. And the horizontal plate portion 24 opposed to the horizontal surface portion 42. The tip side of the horizontal plate portion 24 is located closer to the indoor side than the center position in the width direction of the eaves girder 4. The joining member 13 is fixed to a surface of the first vertical plate portion 21 on the indoor side by welding or the like. Further, a triangular reinforcing plate 25 is connected to the first vertical plate portion 21 and the horizontal plate portion 24 at a substantially central position in the horizontal direction by welding or the like.

  The horizontal plate portion 24 is provided with two vertical through holes 24a in the longitudinal direction of the eaves girder 4. Similarly, a vertical through hole 24a is provided at a position closer to the indoor side than the center position of the upper flange. Two through holes are formed in the longitudinal direction of the eaves girder 4, and the bolts of the bolts and nuts 3 are vertically inserted into these through holes. The horizontal plate portion 24 is fixed to the upper flange by the bolts and nuts 3.

  The first vertical plate portion 21 is formed with two horizontal through holes 21a in the longitudinal direction of the eaves girder 4. Similarly, the vertical plate material 41 also has horizontal through holes in the elongate girder 4. The bolts of the bolts and nuts 3 are inserted horizontally into these through holes. The first vertical plate portion 21 is fixed to the vertical plate material 41 by the bolts and nuts 3.

  On the upper flange of the eaves girder 4 is provided an eaves girder upper purlin 6A (an eaves girder upper purlin integrated with a fixed part). The eave girder upper purlin 6A has a horizontal plate portion 62 serving as a fixed portion and an inclined portion inclined upward from the indoor side end to the outdoor side of the horizontal plate portion 62. There is a main building equivalent part on the side. The horizontal plate portion 62 has a through hole 62a formed in a vertical direction. Bolts and nuts 51 provided at positions outside the web of the eaves girder 4 are inserted into the through holes 62a and the through holes formed in the upper flange, and the eaves girder upper purlin 6A is connected to the upper flange. Fixed to The eaves girder main house 6A is a long article having a maximum size of about 5000 mm, for example. It should be noted that a vertical portion that rises vertically may be used instead of the inclined portion.

  With the above configuration, for example, when the work of attaching the roof truss 1 suspended by a tow truck to the eaves girder 4 is performed, the roof truss 1 is attached to the horizontal plate portion 24 of the attachment member 2A. The roof truss 1 can be temporarily fixed to the eaves girder 4 easily because the work can be temporarily fixed by using the bolts and nuts 3 because the roof truss 1 can be easily mounted on the horizontal plane portion 42 of the eaves girder 4. As a result, the above-mentioned wrecker can be promptly used for mounting the next roof truss 1, and the work of mounting the roof truss 1 to the eaves girder 4 can be performed efficiently. Positioning of the roof truss 1 in a state where the horizontal plate portion 24 is placed on the horizontal surface portion 42 of the eaves girder 4 only requires shifting the roof truss 1 in the longitudinal direction (horizontal direction) of the eaves girder 4. Therefore, the work of positioning the roof truss 1 on the eaves girder 4 is also facilitated.

  Further, in this truss joint structure, the mounting member 2A is composed of the first vertical plate portion 21 and the horizontal plate portion 24, and the second vertical plate portion is different from the mounting member 2 in a third embodiment described later. Since the steel plate 22 (a plate member provided separately from the first vertical plate portion 21) is not provided, the steel material used and the processing cost are reduced, and the cost of the mounting member 2A can be reduced.

  In a third embodiment to be described later, since the second vertical plate portion 22 is provided on the mounting member 2, an electric tool or the like for tightening the bolts and nuts 3 for fixing the first vertical plate portion 21 is required. However, the mounting member 2A of the first embodiment does not have the second vertical plate portion 22, so that the bolt and nut 3 can be tightened using an electric tool or the like. This also improves work efficiency.

  Furthermore, according to the first embodiment, it is possible to provide the joining member 13 as close as possible to the center of the structure of the building as compared with the case where the attachment member 2 according to the third embodiment described later is used. Further, since the bolt 14 provided at the eave-side end of the lower chord member 12 can be brought close to the eaves girder 4, the load generated on the horizontal brace 82 can be received at a position close to the structural center of the building.

  When the eaves girder purlin 6A (fixed part integrated eaves girder purlin) is used, the work time can be reduced as compared with the case where the purlin fasteners and the eaves girder upper purlin are separately installed. In addition, the eaves girder purlin 6A (eave girder girder integrated with a fixed part) can be used for a truss joint structure of a third embodiment described later.

  Next, a second embodiment will be described with reference to FIGS. In the truss joining structure of the second embodiment, as in the first embodiment, the mounting member 2B fixed to the joining member 13 that joins the eaves-side ends of the upper chord member 11 and the lower chord member 12 of the roof truss 1 is similar to that of the first embodiment. It is a structure that is attached to the eaves girder 4 by bolts and nuts 3 which are fastening members.

  The mounting member 2B is provided with a first vertical plate portion (vertical plate portion) 21 facing the vertical plate material 41 provided on the eaves girder 4, and a position slightly lower than an upper end of the first vertical plate portion 21. And the horizontal plate portion 24 opposed to the horizontal surface portion 42. The front end side of the horizontal plate portion 24 is located near the edge of the upper flange of the eaves girder 4 on the outdoor side. The joining member 13 is fixed to a surface of the first vertical plate portion 21 on the indoor side by welding or the like. Further, a triangular reinforcing plate 25 is connected to the first vertical plate portion 21 and the horizontal plate portion 24 at a substantially central position in the horizontal direction by welding or the like.

  The horizontal plate portion 24 is formed with two vertical through holes 24a in the longitudinal direction of the eaves girder 4. Similarly, a vertical through hole 24a is formed at a position on the outdoor side of the center position of the upper flange. Two through holes are formed in the longitudinal direction of the eaves girder 4, and the bolts of the bolts and nuts 3 are vertically inserted into these through holes. The horizontal plate portion 24 is fixed to the upper flange by the bolts and nuts 3.

  The first vertical plate portion 21 is formed with two horizontal through holes 21a in the longitudinal direction of the eaves girder 4. Similarly, the vertical plate material 41 also has horizontal through holes in the elongate girder 4. The bolts of the bolts and nuts 3 are inserted horizontally into these through holes. The first vertical plate portion 21 is fixed to the vertical plate material 41 by the bolts and nuts 3.

  The purlin portion 241 that is inclined upward toward the outdoor side is integrally formed with the horizontal plate portion 24. The eave girder upper purlin 6B is attached to the purlin retaining part 241. The eave girder upper purlin 6B is made of a lip channel steel. The purlin retaining portion 241 has three through holes 241 a in the longitudinal direction of the eaves girder 4 through which bolts of bolts and nuts 61 for fixing the eaves girder upper purlin 6 </ b> B can be inserted. When the ends of the eave girder upper purlin 6B adjacent to the purlin retaining portion 241 are located, through holes 241a at both ends can be used, and in other cases, the central through hole 241a is used.

With the above configuration, the same operation and effect as those of the truss joint structure of the first embodiment can be obtained. In addition, the mounting member 2B of the second embodiment can shorten the working time compared to the case where the purlin fixing tool and the eaves-girder purlin are separately mounted, because the horizontal plate portion 24 integrally includes the purlin fixing part 241. Can be.

  Next, a third embodiment will be described with reference to FIGS. In the truss joining structure of the third embodiment, as in the first embodiment, the mounting member 2 fixed to the joining member 13 joining the eaves-side ends of the upper chord member 11 and the lower chord member 12 of the roof truss 1 is also used. It is a structure that is attached to the eaves girder 4 by bolts and nuts 3 which are fastening members.

  The mounting member 2 includes a first vertical plate portion (vertical plate portion) 21 opposed to the vertical plate material 41 provided on the eaves girder 4, and is separated from the first vertical plate portion 21 to the indoor side and the A second vertical plate portion 22 (a plate member provided separately from the first vertical plate portion 21) disposed in parallel with the first vertical plate portion 21, the first vertical plate portion 21, and the second vertical plate portion 22; And a connecting vertical plate portion 23 that connects the horizontal plate portions to each other at the center position in the horizontal direction, a horizontal plate portion 24 facing the indoor side end of the horizontal surface portion 42, the second vertical plate portion 22, and the horizontal plate portion 24. Is provided with a triangular reinforcing plate 25 connected at a central position in each lateral direction. These plate members constituting the mounting member 2 are fixed to each other by welding or the like. Further, the joining member 13 is fixed to a surface of the mounting member 2 on the indoor side of the second vertical plate portion 22 by welding or the like.

  The horizontal plate portion 24 protrudes in the direction of the central position so as not to reach the central position (web position) of the upper flange. In the horizontal plate portion 24, two vertical through holes 24a are formed in the longitudinal direction of the eaves girder 4. Similarly, a vertical through hole 24a is also provided at a position closer to the indoor side than the center position of the upper flange. Two through holes are formed in the longitudinal direction of the eaves girder 4, and bolts of the bolts and nuts 3 are vertically inserted into these through holes. The horizontal plate portion 24 is fixed to the upper flange by the bolts and nuts 3.

  The first vertical plate portion 21 is formed with two horizontal through holes 21a. Similarly, the vertical plate member 41 is also formed with two horizontal through holes, and these through holes are bolted. -The bolt of the nut 3 is inserted in the horizontal direction. The first vertical plate portion 21 is fixed to the vertical plate material 41 by the bolts and nuts 3.

  A purlin fastener 5 is mounted on the upper flange of the eaves girder 4. The purlin fastener 5 is fixed by bolts and nuts 51 provided at positions outside the web position of the eaves girder 4 on the outdoor side. The purlin fastener 5 is, for example, a piece having a width of about 100 mm. Further, the purlin fixing tool 5 has an oblique plate portion 5a that is inclined upward toward the outdoor side, and the eaves girder upper purlin 6 is fixed to the oblique plate portion 5a by bolts and nuts 61. The eaves girder purlin 6 is a long article having a maximum size of about 5000 mm, for example. Further, as the eaves girder upper purlin 6, a part of the lower side of the lip channel steel cut off is used.

  Also in the above configuration, the mounting member 2 is provided with the horizontal plate portion 24 on which the roof truss 1 can be placed on the eaves girder 4, and the tow is quickly used for mounting the next roof truss 1. Therefore, the workability of mounting the roof truss 1 is improved.

  When the eaves girder upper purlin 6 is formed by cutting off a part of the lower side of the lip channel steel, the eaves girder upper purlin 6 and the horizontal plate portion 24 are prevented from interfering with each other. be able to.

  The embodiments of the present invention have been described with reference to the drawings. However, the present invention is not limited to the illustrated embodiments. Various modifications and variations can be made to the illustrated embodiment within the same range as the present invention or within an equivalent range.

1: roof truss 2: mounting member 2A: mounting member 2B: mounting member 3: bolt / nut 4: eave girder 5: purlin fastener 5a: diagonal plate part 6: eave girder upper purlin 6A: eave girder upper purlin (fixed part) Integrated eave girder purlin)
6B: eave girder upper purlin 11: upper chord member 12: lower chord member 13: joining member 14: bolt 21: first vertical plate portion (vertical plate portion)
21a: through hole 22: second vertical plate portion 23: connecting vertical plate portion 24: horizontal plate portion 24a: through hole 25: reinforcing plate 41: vertical plate material 42: horizontal surface portion 51: bolt / nut 61: bolt / nut 62: Horizontal plate portion 62a: Through hole 81: Column 82: Horizontal brace 241: Purlin retaining portion 241a: Through hole

Claims (2)

A truss joint structure in which an attachment member fixed to a joint member joining the upper chord member and the lower chord member of the roof truss to the eaves end is attached to the eave girder by a fastening member, wherein the attachment member is vertically attached to the eave girder. A vertical plate portion facing the vertical plate material, and a horizontal plate portion facing the horizontal surface portion above the eaves girder, the vertical plate portion being fixed to the vertical plate material, the horizontal plate portion Is fixed to the horizontal surface by a fastening member set in the vertical direction ,
A truss joint structure , wherein a fixed part integrated eave girder purlin having a fixing part for fixing to the eave girder is fixed by a fastening member set in a vertical direction .   The truss connection structure according to claim 1, wherein the connection member is fixed to the vertical plate portion.

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