JP2014189967A - Underfloor beam material receiver, bundle, and support structure of underfloor beam material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an underfloor beam material receiver capable of properly receiving a load received from an underfloor beam material.SOLUTION: A sleeper receiver (11) includes: a flat plate part (12) having a mounting surface for mounting an underfloor beam material thereon, and provided with an attaching part (17) attached to a bundle; and a pair of side plate parts (21a, 21b) provided to rise up on the mounting surface side from both ends (13a, 13b) of the flat plate part (12). The flat plate part (12) is provided with a pair of first ribs (26a, 26b) extending from the attaching part (17) to both ends (13a, 13b) of the flat plate part (12) provided with the pair of side plate parts (21a, 21b), respectively, and second ribs (27a to 27f) extending from the attaching part (17) so as to extend in the direction intersecting with the first ribs (26a, 26b).

Description

  TECHNICAL FIELD The present invention relates to an underfloor beam support, a bundle, and a support structure for an underfloor beam, and in particular, a steel underfloor beam support, a bundle including such a steel underfloor beam, and an underfloor. The present invention relates to a beam material support structure.

  As a member for supporting the floor board or the like, there is an underfloor beam material such as a joist or an overhang arranged at the lower part of the floor board. A large fore is arranged on a bundle arranged so as to extend vertically up and down at a predetermined interval above the soil formed by concrete as a foundation. In addition, a plurality of joists are arranged in a lattice pattern on the fork. And these large pulls and joists support the floor board etc. which comprise the floor of a room.

  About the bundle which supports large drawing etc., a large drawing tool is attached in the edge part of the perpendicular upper side. That is, the large pulling tool and the large pull are in direct contact with each other and receive a load from the large pull as a bundle. The large deposit is disclosed in Japanese Patent Laid-Open No. 2003-138729 (Patent Document 1).

JP 2003-138729 A

  The large amount receiving article disclosed in Patent Document 1 is joined to a bundle and has a bottom plate portion that supports the lower surface of the large portion, and a side plate portion that is erected from both sides of the bottom plate portion and supports both side surfaces of the large portion. Yes. And about the large acceptance thing disclosed by patent document 1, it is supposed that the reinforcement rib over a side-plate part from a bottom-plate part is provided, and a bundle is joined to the position which avoided the reinforcement rib of the bottom-plate part.

  However, even when such a large deposit is used, it may be insufficient from the viewpoint of a load that can be supported. In particular, in recent years, when a large-sized cross section having a substantially rectangular cross section is used with a weak shaft so that the long side is positioned vertically downward, the load cannot be properly received, and problems such as bending of the support may occur. There is.

  An object of the present invention is to provide an underfloor beam material holder that can appropriately receive a load received from the underfloor beam material.

  Another object of the present invention is to provide a bundle capable of appropriately supporting an underfloor beam material.

  Still another object of the present invention is to provide a support structure for an underfloor beam material that can appropriately support the underfloor beam material.

  The underfloor beam material holder according to an embodiment of the present invention is provided in a bundle that supports the underfloor beam material and receives the underfloor beam material. The underfloor beam receiving member has a mounting surface on which the underfloor beam material is mounted, a flat plate portion provided with a mounting portion to be attached to the bundle, and from both ends of the flat plate portion to the mounting surface side. And a pair of side plate portions provided so as to stand up. The flat plate portion includes a pair of first ribs extending from the mounting portion to both ends of the flat plate portion provided with the pair of side plate portions, and a second extending from the mounting portion so as to extend in a direction intersecting the first rib. And ribs are provided.

  According to such an underfloor beam receiver, the pair of first ribs provided on the flat plate portion extend from the attachment portion attached to the bundle to both ends of the flat plate portion on which the side plate portion is provided. And the bending with respect to the load from the underfloor beam material in the direction which reaches both ends can be suppressed. Moreover, about the other direction, the bending with respect to the load from an underfloor beam material can be suppressed by the 2nd rib extended from an attaching part so that it may extend in the direction which cross | intersects a 1st rib. As a result, the load received from the underfloor beam can be appropriately received.

  Moreover, you may comprise the 1st rib so that it may extend to the edge part of a side-plate part. By carrying out like this, the bending with respect to the load from the underfloor beam material in the direction which reaches the both end parts side more reliably can be suppressed.

  In addition, the plurality of second ribs may be configured to be provided radially. By carrying out like this, the bending with respect to the load from an underfloor beam material can be suppressed appropriately in many directions.

  The second rib includes a third rib provided so as to intersect with the direction orthogonal to the first rib, and a fourth rib provided so as to intersect with the first rib at an angle. The length from the attaching portion to the outer end portion of the fourth rib may be longer than the length from the attaching portion to the outer end portion of the third rib. By doing so, it is possible to suppress the bending in the direction in which the fourth rib, which is relatively easily bent, extends.

  Moreover, you may comprise an attaching part so that it may be provided in the approximate center of a flat plate part. By carrying out like this, the load received from an underfloor beam material can be more appropriately transmitted to the support part provided in the bundle.

  Moreover, you may comprise so that the 1st rib and 2nd rib which adjoin may be provided at 45 degree intervals in the circumferential direction centering | focusing on the center of the attachment part. By carrying out like this, a load can be received more uniformly.

  In another aspect of the present invention, the bundle includes any of the underfloor beam material receivers described above and a support portion that supports the underfloor beam material receivers from the vertically lower side.

  In still another aspect of the present invention, the underfloor beam support structure includes the above-described bundle and the underfloor beam supported on the bundle from the vertically lower side, and the vertical length of the underfloor beam is The length of the underfloor beam material is shorter than the length in the direction perpendicular to the vertical direction.

  By doing so, even if a so-called underfloor beam material is used as a weak shaft, a load from the underfloor beam material can be appropriately received.

  According to such a configuration, the pair of first ribs provided on the flat plate portion respectively extend from the attachment portion attached to the bundle to both end portions of the flat plate portion on which the side plate portion is provided. The bending with respect to the load from the underfloor beam material in the direction to reach can be suppressed. Moreover, about the other direction, the bending with respect to the load from an underfloor beam material can be suppressed by the 2nd rib extended from an attaching part so that it may extend in the direction which cross | intersects a 1st rib. As a result, the load received from the underfloor beam can be appropriately received.

It is a figure which shows the large receiving tool as an underfloor beam material receiving tool which concerns on one Embodiment of this invention. It is the side view which looked at the large acceptance tool shown in FIG. 1 from the direction of arrow II in FIG. It is sectional drawing at the time of cut | disconnecting the large acceptance tool shown in FIG. 1 in the III-III cross section in FIG. It is the schematic which shows a part of support structure of steel large drawing provided with the large drawing receiving tool shown in FIG. It is the figure which looked at the support structure of the steel large drawing shown in FIG. 4 from the direction of the arrow V in FIG. It is a figure which shows the large receiving tool of the structure which does not provide the rib in the past. It is the side view which looked at the large acceptance tool shown in FIG. 6 from the direction of arrow VII in FIG. It is a figure which shows the large acceptor of the structure in which the conventional rib does not extend to both ends. It is the side view which looked at the large acceptance tool shown in FIG. 8 from the direction of arrow IX in FIG.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a large receiving tool as an underfloor beam receiving tool according to an embodiment of the present invention. FIG. 2 is a side view of the large acceptor shown in FIG. 1 as viewed from the direction indicated by arrow II in FIG. FIG. 3 is a cross-sectional view of the large acceptor shown in FIG. 1 taken along the line III-III in FIG. FIG. 4 is a schematic view showing a part of a support structure for steel pulling that includes the pulling receiving tool shown in FIG. 1 and supports steel pulling as an underfloor beam member. FIG. 5 is a view of the steel pulling support structure shown in FIG. 4 as viewed from the direction of the arrow V in FIG. Incidentally, the direction indicated by the arrow A ₁ in two equal figures, a vertically lower side.

  Referring to FIGS. 1 to 5, a large pull receiving device 11 according to an embodiment of the present invention is provided in a bundle described later that supports an underfloor beam material such as a large draw, and receives the underfloor beam material such as a large draw. . The large receiving tool 11 is made of steel. The large receiving tool 11 is formed by bending a steel plate of a predetermined size.

The large receiving tool 11 includes a substantially rectangular flat plate portion 12 when viewed from the upper side, that is, from the front side in FIG. Specifically, in the case shown in FIG. 1, the flat plate portion 12 has a horizontally long rectangular shape, both end portions 13 a and 13 b positioned in the left-right direction in FIG. 1 and both ends positioned in the vertical direction in FIG. 1. It is the structure provided with the parts 14a and 14b. The end portion 13a and the end portion 13b face each other, and the end portion 14a and the end portion 14b face each other. Horizontal length of the flat plate portion 12 shown by the length _{L 1} in FIG. 1, i.e., both end portions 13a, the length between 13b, approximately 100mm are selected. The vertical length of the flat plate portion 12 shown by the length _{L 2} in FIG. 1, i.e., both end portions 14a, the length between 14b, about 80mm is selected. Incidentally, the length L ₃ in FIG. 2 shows the thickness of the steel plate constituting the flat plate portion 12 and the like. About 2.3 mm is selected about the plate | board thickness of a steel plate.

  The flat plate part 12 has a placement surface on which a floor beam material such as a large draw is placed. That is, in the flat plate portion 12, the surface 15a on one side in the plate thickness direction is a surface opposed to the large drawing or the like and serves as a placement surface for the large drawing or the like. In addition, the surface 15b on the other side in the plate thickness direction is a surface facing a support portion provided in a bundle described later. Most of the mounting surface is flat. Specifically, on the surface 15a side on the one side in the plate thickness direction constituting the mounting surface, except for a region where a mounting portion to be described later is provided, there are no protruding protrusions or dents, The shape is generally flat. In addition, eight through-holes 16a, 16b, 16c, 16d, 16e, 16f, 16g, and 16h that penetrate in the thickness direction are provided at predetermined locations in the flat portion of the flat plate portion 12. The eight through-holes 16a to 16h are provided at predetermined intervals, and are appropriately used at the time of attachment to the large pull. The diameters of the through holes 16a to 16h are about 4.5 mm.

  The flat plate portion 12 is provided with an attachment portion 17 attached to a bundle described later. Specifically, the mounting portion 17 includes a mounting convex portion 18 projecting from the surface 15b on the other side in the plate thickness direction at the approximate center of the rectangular flat plate portion 12, and a plate thickness direction at the center of the mounting convex portion 18. It is comprised from the attachment through-hole 19 which penetrates. That is, the mounting convex portion 18 is provided around the mounting through hole 19 so as to rise from the other surface 15b in the plate thickness direction. The surface 15b on the other side in the plate thickness direction and the mounting projection 18 are provided so as to be gently connected. In FIG. 1, the center 20 a of the flat plate portion 12 in the vertical direction of the drawing is indicated by a one-dot chain line, and the center 20 b of the flat plate portion 12 in the horizontal direction of the drawing is indicated by a two-dot chain line. The center of the attachment portion 17 is an intersection 20c between the center 20a and the center 20b. The intersection 20c serves as a fulcrum when the large receiving tool 11 is attached to a support portion described later and supports a load received from the large pull or the like.

  The large receiving tool 11 includes a pair of side plate portions 21a and 21b provided so as to rise from both left and right end portions 13a and 13b of the flat plate portion 12 to the placement surface side. Specifically, one side plate portion 21 a is provided so as to rise from an end portion 13 a corresponding to the short side of one side of the rectangular flat plate portion 12. The other side plate portion 21 b is provided so as to rise from an end portion 13 b corresponding to the other short side of the rectangular flat plate portion 12. That is, the direction in which the mounting convex portion 18 of the mounting portion 17 protrudes and the direction in which the side plate portions 21 a and 21 b rise are opposite to each other in the plate thickness direction of the flat plate portion 12. The pair of side plate portions 21a and 21b are also provided so as to face each other.

Next, the configuration of one side plate portion 21a located on the left side in FIG. 1 to FIG. 3 will be described. The side plate portion 21a is provided to be inclined and rise with respect to the surface 15a on one side of the flat plate portion 12. Specifically, of the side plate portion 21a, the angle A ₂ between one side surface 15a of the surface 22a and the flat portion 12 located at the flat plate portion 12 side is a obtuse angle, to be about 100 degrees Is provided. The side plate portion 21a is provided so as to be inclined and extend straight. The side plate portion 21 a is provided from the end portion 14 a to the end portion 14 b in the flat plate portion 12. That is, the length of the side plate portion 21a in the vertical direction in FIG. 1 is also about 80 mm. Further, of the side plate portion 21a, the length extending along the inclination direction of the surface 22a from the surface 15a shown by the length _{L 4} in FIG. 2 to the end portion 23a of the side plate portion 21a, about 10mm is selected . The side plate portion 21b has the same configuration. That is, the side plate portion 21 b is provided to be inclined and rise with respect to the surface 15 a on one side of the flat plate portion 12. Of the side plate portion 21b, the angle A ₃ between one side surface 15a of the surface 22b and the flat portion 12 located at the flat plate portion 12 side, a obtuse, are provided to be about 100 degrees. Further, of the side plate portion 21b, the even length extending along the inclination direction of the surface 22b of the surface 15a shown by the length _{L 5} in FIG. 2 to the end portion 23b of the side plate portion 21b, about 10mm is selected . In addition, by setting such angles A ₂ and A ₃ to be obtuse, it is possible to easily place the steel pulling described later on the placement surface.

  The flat plate portion 12 is provided with a pair of first ribs 26a and 26b. About a pair of 1st ribs 26a and 26b, it is a shape dented from the surface 15a of the one side of the flat plate part 12 in the shape of a round groove. In other words, the pair of first ribs 26 a and 26 b has a shape protruding along a shape recessed in a round groove shape on the other surface 15 b side of the flat plate portion 12.

  The pair of first ribs 26a and 26b extend from the attachment portion 17 to both end portions 13a and 13b of the flat plate portion 12 provided with the pair of side plate portions 21a and 21b, respectively. Specifically, the first rib 26a on one side extends from the outer end 24a of the mounting projection 18 to the end 13a on one side of the flat plate portion 12 in the mounting portion 17. Yes. In this case, the first rib 26a on one side has a shape that extends further to the end 23a of the rising first side plate portion 21a. Similarly, the first rib 26 b on the other side extends from the outer end 24 b of the mounting projection 18 to the other end 13 b of the flat plate portion 12 in the mounting portion 17. In this case, the first rib 26b on the other side has a shape that extends further to the end 23b of the rising first side plate 21b. The 1st rib 26a and the 1st rib 26b are provided in the position which opposes 180 degree | times centering on the intersection 20c. That is, the first rib 26a and the first rib 26b are provided so as to extend in opposite directions from the attachment portion 17 toward the end portions 13a and 13b with the intersection 20c as the center.

  The flat plate portion 12 is provided with a plurality of, specifically, six second ribs 27a, 27b, 27c, 27d, 27e, and 27f. The six second ribs 27a to 27f are provided so as to extend radially outward from the outer end portions 25a, 25b, 25c, 25d, 25e, and 25f of the mounting portion 17, respectively. The six second ribs 27a to 27f are provided so as to extend in a direction intersecting with the pair of first ribs 26a and 26b, respectively. Specifically, the second rib 27a is provided with an inclination of 45 degrees toward the end 13a with respect to the first rib 26a. The second rib 27b is provided to be inclined 90 degrees toward the end 13a with respect to the first rib 26a. That is, the first rib 26a and the second rib 27b are provided so as to extend in the orthogonal direction. The second rib 27c is provided with an inclination of 45 degrees toward the end 13a with respect to the first rib 26b. The second rib 27d is provided with an inclination of 45 degrees toward the end 13b with respect to the first rib 26b. The second rib 27e is provided to be inclined 90 degrees toward the end 13b with respect to the first rib 26b. That is, the first rib 26b and the second rib 27e are provided so as to extend in the orthogonal direction. The second rib 27f is provided with an inclination of 45 degrees toward the end 13b with respect to the first rib 26a. The 2nd rib 27a and the 2nd rib 27d are provided in the position which opposes 180 degree | times centering on the intersection 20c. The 2nd rib 27b and the 2nd rib 27e are provided in the position which opposes 180 degree | times centering on the intersection 20c. The 2nd rib 27c and the 2nd rib 27f are provided in the position which opposes 180 degree | times centering | focusing on the intersection 20c. That is, the adjacent first ribs 26 a and 26 b and the second ribs 27 a to 27 f are provided at an interval of 45 degrees in the circumferential direction with the intersection 20 c serving as the center of the attachment portion 17 as the center.

Each of the second ribs 27 a to 27 f extends from the attachment portion 17 and does not reach the end portion 14 a or the like, but extends to the middle of the flat plate portion 12. The second ribs 27a, 27c, 27d, and 27f extending obliquely with respect to the first ribs 26a and 26b are defined as third ribs 28a, and the second ribs extend in a direction orthogonal to the first ribs 26a and 26b. When the ribs 27b and 27e are the fourth ribs 28b, the length of the fourth ribs 28b is longer than that of the third ribs 28a. Specifically, the length from the end portion 29a of the outer side of the second rib 27a shown by a length L ₈ in FIG. 1 up to the outer side of the end portion 29d of the second rib 27d is It is configured longer than the length from the end portion 29b of the outer side of the second rib 27b indicated by the length L ₇ of FIG. 1 up to the second rib 27e of the outer side of the end portion 29e. Similarly, the length from the outer side of the end portion 29c of the second rib 27c shown by the length L ₆ in FIG. 1 up to the second rib 27f of the outer side of the end portion 29f is It is configured longer than the length from the end portion 29b of the outer side of the second rib 27b indicated by the length L ₇ of FIG. 1 up to the second rib 27e of the outer side of the end portion 29e. About 80 mm is selected as the length L ₆ and the length L ₈ , and about 70 mm is selected as the length L ₇ .

  The large receiving tool 11 having the above-described configuration is configured symmetrically in the vertical direction with the center 20a indicated by the alternate long and short dash line as the axis of symmetry. The large receiving tool 11 is configured symmetrically in the left-right direction with the center 20b indicated by the two-dot chain line as the axis of symmetry. Further, as shown in FIG. 1, the large receiving tool 11 has rotational symmetry that is the same shape even when rotated 180 degrees with the intersection 20 c as the rotation center.

  Next, the structure of such a bundle including the large pull receiving tool 11 and the support structure of the steel large pull will be described. The bundle 31 according to an embodiment of the present invention includes the large acceptor 11 having the above-described configuration and a rod-like support portion 32 that supports the large acceptor 11 from the vertically lower side. The bundle 31 is made of steel, and is disposed on the dirt 33 formed by concrete or the like indicated by a one-dot chain line in FIGS. 4 and 5. Specifically, one end of the bundle 31, that is, the lower end 34 a is attached on the dirt 33 so as to extend in the vertical direction. The large receiver 11 is attached to the other end portion of the support portion 32, specifically, to the upper end portion 34 b of the support portion 32 using screws or the like (not shown). That is, the large receiver 11 is detachably provided on the bundle 31. Note that the length of the bundle 31 can be changed by changing the length of the support portion 32.

  Moreover, the steel large drawing support structure 41 according to the embodiment of the present invention includes the bundle 31 having the above-described configuration and the steel large drawing 36. The steel draw 36 is a square member extending in the longitudinal direction and is hollow. The steel draw 36 has a shape that extends straight in the longitudinal direction. The length of the steel large fork 36 is approximately several meters. The steel large fork 36 has a substantially rectangular outer shape. Specifically, when viewed from one side in the longitudinal direction, the steel draw 36 is composed of a pair of long sides 37a and 37b and a pair of short sides 38a and 38b, as shown in FIG. Yes. Of the pair of long sides 37a, 37b, the long side 37a on one side is arranged vertically downward, and the pair of short sides 38a, 38b are arranged to extend in the vertical direction. That is, the steel pull 36 is used with a weak shaft. In this case, the outer surface 39a of the long side 37a on one side of the steel pulling 36 is the vertically lower side, and the one surface 15a of the flat plate portion 12 of the large receiving device 11, that is, the mounting of the large receiving device 11 is performed. It is provided so as to abut on the mounting surface. The steel pulling 36 is formed by bending a flat steel plate into a rectangular shape by, for example, roll forming. Then, there is a case where a not-shown caulking portion where end portions are joined when bent is provided on one long side 37a.

  According to the large pull receiving device 11, the bundle 31, and the steel large pull support structure 41 having such a configuration, the pair of first ribs 26 a and 26 b provided on the flat plate portion 12 are attached to the bundle 31. 17 is extended to both end portions 13a and 13b of the flat plate portion 12 on which the side plate portions 21a and 21b are provided, so that the bending with respect to the load from the steel draw 36 in the direction to the both end portions 13a and 13b side is suppressed. can do. In other directions, the second ribs 27a to 27f extending from the mounting portion 17 so as to extend in the direction intersecting the first ribs 26a and 26b are used to suppress the bending of the steel pulling 36 against the load. Can do. As a result, the load received from the steel pull 36 can be appropriately received.

  In this case, since the steel pull 36 is used with a weak shaft, the height of the upper space can be secured widely. That is, a high ceiling height can be realized in a room formed on an underfloor beam material such as the steel drawer 36, and a large living space can be secured.

  In this case, the first ribs 26a and 26b are configured to extend to the end portions 23a and 23b of the side plate portions 21a and 21b. The bending with respect to the load from the steel large drawing 36 can be suppressed.

  Further, since the plurality of second ribs are configured to be provided in a radial manner, it is possible to appropriately suppress the bending with respect to the load from the steel pull 36 in multiple directions.

  Further, the second ribs 27a to 27f are inclined so as to intersect with the third rib 28a provided so as to intersect with the direction orthogonal to the first ribs 26a and 26b and the first ribs 26a and 26b. And the length from the mounting portion 17 to the outer end of the fourth rib 28b is the end of the third rib 28a from the mounting portion 17 to the outer end of the fourth rib 28b. Therefore, it is possible to suppress the bending in the direction in which the fourth rib 28b, which is relatively easy to bend, extends.

  Moreover, since the attachment part is provided in the approximate center of the flat plate part, the load received from the steel pulling 36 can be more appropriately transmitted to the support part 32 provided in the bundle 31.

  Moreover, since the adjacent first ribs 26a and 26b and the second ribs 27a to 27f are provided at an interval of 45 degrees with the center of the attachment portion 17 as the center, they can receive a load more evenly. .

Next, a load evaluation test was performed using the large acceptor 11 as Example 1. For load evaluation test, the support structure 41 of the steel Obiki shown in FIG. 4 described above, and applying a load from an arrow A _1, was measured elastic limit load and maximum load. As a comparison object, the large acceptor having the shape shown in FIGS. 6 and 7 is used as Comparative Example 1, and the large acceptor having the shape shown in FIGS. 8 and 9 is used as Comparative Example 2, similarly to the large acceptor of Example 1. Tested. The test results are shown in Table 1 below. In addition, as a test, it carried out using three test bodies in each Example and a comparative example. Here, as the elastic limit load, the load assumptions applied as long load, for a fixed load 800 N / ^{m 2,} a live load 1800 N / ^{m 2.} Then, the value of 4306N was set as the elastic limit load in consideration of a safety factor of about 2 times the value of 2600 N / m ² added together. That is, in one standard, it is desirable that the average value of the three specimens is 4306N or more as the elastic limit load. In addition, as a maximum load, the one where the value of each test body is high is desirable. In particular, in consideration of a safety factor of about 3 times in each specimen, a value of 6459N or more is desirable.

  FIG. 6 is a diagram showing a conventional large receiving tool that is not provided with a rib. FIG. 7 is a side view of the large acceptor shown in FIG. 6 as viewed from the direction of arrow VII in FIG. Referring to FIGS. 6 and 7, a conventional large receiving tool 101 includes a rectangular flat plate portion 102 and a pair of side plate portions 103 a and 103 b. In addition, the mounting portion 104 having a through hole is provided at the center of the flat plate portion 102. Eight through holes 105a, 105b, 105c, 105d, 105e, 105f, 105g, and 105h are also provided.

  Moreover, FIG. 8 is a figure which shows the large acceptor of the structure which the conventional rib does not extend to both ends. FIG. 9 is a side view of the large acceptor shown in FIG. 8 as seen from the direction of arrow IX in FIG. Referring to FIGS. 8 and 9, the conventional large receiving tool 111 is configured to include a rectangular flat plate portion 112 and a pair of side plate portions 113 a and 113 b. Further, the mounting portion 114 is provided with a through hole provided in the center of the flat plate portion 112. Eight through holes 115a, 115b, 115c, 115d, 115e, 115f, 115g, and 115h are also provided. The large accepting tool 111 has eight ribs 116a, 116b, 116c, 116d, 116e, 116f, 116g, and 116h. The ribs 116 a and 116 e extending from the attachment portion 114 toward the pair of side plate portions 113 a and 113 b do not reach both end portions of the flat plate portion 112. Further, the length from the mounting portion 114 to the outer end of each of the ribs 116a to 116h is the same.

  The elastic limit load was examined with reference to Table 1. In the case of Comparative Example 1, the average elastic limit load was 2326.6 N (Newton). Moreover, in the case of the comparative example 2, the elastic limit load was an average of 3203.3N. On the other hand, in the case of Example 1, the elastic limit load was an average of 4313.3N. In the case of Example 1, it became a big value compared with the case of the comparative example 1 and the comparative example 2, and the result exceeding 4306N as a calculated | required elastic limit load was obtained.

  Further, when examining the maximum load, in the case of Comparative Example 1, the maximum load was an average of 11133N. In the case of Comparative Example 2, the maximum load was an average of 11100N. On the other hand, in the case of Example 1, the maximum load was an average of 11500 N. In the case of Example 1, it became a large value compared with the case of Comparative Example 1 and Comparative Example 2.

  As described above, the large pulling tool, the bundle, and the steel large pull support structure having such a configuration can appropriately receive the load received from the steel large pull.

  In the above-described embodiment, the flat plate portion has a substantially rectangular shape. However, the flat plate portion is not limited to such a shape. For example, a curved surface or an inclined surface at an end portion where no side plate portion is provided. You may comprise so that it may comprise.

  In the above embodiment, the mounting convex portion provided with the mounting through hole is provided as the mounting portion. However, the present invention is not limited to this, and only the through hole or the through hole is not provided. Alternatively, a simple mounting convex portion may be provided.

  In the above embodiment, the first rib is configured to extend to the end portion of the side plate portion, but is not limited thereto, as long as it reaches at least the end portion of the flat plate portion, It is good also as a structure by which the rib is provided to the middle part of the side-plate part.

  Further, in the above embodiment, the large acceptor is formed by bending a steel plate of a predetermined size, but is not limited to this, cutting out a block-shaped square member or the like, such as so-called cutting, You may decide to form the large receiving tool of an above-described shape.

  In the above-described embodiment, the rib is configured such that the surface on one side is recessed and the surface on the other side protrudes. However, the present invention is not limited to this. It does not have to be recessed from the side surface, and the recess may be filled with some member.

  In the above-described embodiment, the second rib has a configuration in which the outer end does not reach the end of the flat plate portion. It is good also as a structure where the edge part of a side reaches the edge part of a flat plate part.

  In the above-described embodiment, the second rib is provided in a radial manner. However, the present invention is not limited to this, and for example, the second rib is viewed from above the flat plate portion. The line constituting the second rib may be composed of a plurality of straight lines or curves. Moreover, it does not need to be provided at intervals of 45 degrees in the circumferential direction. For example, it may be provided at intervals of 30 degrees.

  In the above-described embodiment, the steel pulling provided in the steel pulling support structure has a substantially rectangular outer shape, but the long side on one side is longer than the long side on the other side. Even a trapezoidal shape with a slightly longer configuration and a slightly shorter configuration is applicable. Alternatively, steel pulling may be used using a so-called strong shaft, that is, the length of the steel pulling in the vertical direction may be longer than the length of the steel pulling in the direction perpendicular to the vertical direction.

  In the above-described embodiment, the steel underlay is provided as the underfloor beam material. However, the present invention is not limited thereto, and examples of the underfloor beam material include joists and other members used under the floor. In this case, the under-floor beam receiving member is a member that directly contacts the joist or the like.

  As mentioned above, although embodiment of this invention was described with reference to drawings, this invention is not limited to the thing of embodiment shown in figure. Various modifications and variations can be made to the illustrated embodiment within the same range or equivalent range as the present invention.

  The support structure for the large under-loader, the bundle, and the underfloor beam material according to the present invention is effectively used when the underfloor beam material is used with a weak shaft.

  11, 101, 111 large acceptor, 12, 102, 112 flat part, 13a, 13b, 14a, 14b, 23a, 23b, 24a, 24b, 25a, 25b, 25c, 25d, 25e, 25f, 29a, 29b, 29c , 29d, 29e, 29f, 34a, 34b, 103, 103, 113, 113 end, 15a, 15b, 22a, 22b, 39a surface, 16a, 16b, 16c, 16d, 16e, 16f, 16g, 16h, 19, 105a, 105b, 105c, 105d, 105e, 105f, 105g, 105h, 115a, 115b, 115c, 115d, 115e, 115f, 115g, 115h Through hole, 17, 104, 114 mounting portion, 18 mounting convex portion, 20a, 20b , Center, 20c intersection, 21a, 21b, 103a , 103b, 113a, 113b Side plate, 26a, 26b, 27a, 27b, 27c, 27d, 27e, 27f, 28a, 28b, 116a, 116b, 116c, 116d, 116e, 116f, 116g, 116h Rib, 31 Bundle, 32 Support part, 33 soil, 36 steel large drawing, 37a, 37b long side, 38a, 38b short side, 41 steel large drawing support structure.

Claims (9)

It is provided in a bundle that supports an underfloor beam material, and is an underfloor beam material receiver that receives the underfloor beam material,
A flat plate portion on which a mounting surface for mounting the underfloor beam material is provided, and a mounting portion to be attached to the bundle is provided;
Including a pair of side plate portions provided so as to rise from the both end portions of the flat plate portion to the placement surface side,
The flat plate portion includes a pair of first ribs extending from the attachment portion to both ends of the flat plate portion provided with the pair of side plate portions, and a direction extending across the first rib. An underfloor beam receiving member provided with a second rib extending from the attachment portion. The underfloor beam receiver according to claim 1, wherein the first rib extends to an end portion of the side plate portion. The underfloor beam receiving member according to claim 1 or 2, wherein the plurality of second ribs are provided radially. The second rib includes a third rib provided so as to intersect in a direction orthogonal to the first rib, and a fourth rib provided so as to intersect with the first rib at an angle. Including
The length from the said attaching part to the outer side edge part of the said 4th rib is longer than the length from the said attaching part to the outer side edge part of the said 3rd rib. The underfloor beam receiver according to any one of the above. The underfloor beam material holder according to any one of claims 1 to 4, wherein the attachment portion is provided at a substantially center of the flat plate portion. The underfloor according to any one of claims 1 to 5, wherein each of the adjacent first rib and the second rib is provided at an interval of 45 degrees in the circumferential direction around the center of the attachment portion. Beam material holder. The underfloor beam receiving member according to any one of claims 1 to 6, wherein the underfloor beam material includes large draw or joist. Underfloor beam material holder according to any one of claims 1 to 7,
A bundle comprising a support portion for supporting the under-floor beam receiving member from a vertically lower side. A bundle according to claim 8;
Underfloor beam material supported from the vertically lower side to the bundle,
The underfloor beam support structure, wherein a length of the underfloor beam material in a vertical direction is shorter than a length of the underfloor beam material in a direction perpendicular to the vertical direction.

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