Patent Application
20200087938
The present invention relates to a reinforcement structure that reinforces a construction from inside and relates to an equipment frame and a booth that are reinforced by the reinforcement structure.
In recent years, quake resistance of constructions has been required to be increased, and, for example, in the case of constructions such as residences, measures are taken such as providing many braces inside partition walls partitioning internal spaces of the constructions (see Patent Literature 1, for example).
However, inside constructions in factories such as equipment frames and booths, there are provided passages, line equipment, and the like; therefore, it is impossible to place a brace that crosses obliquely between inner side surfaces of the constructions. In contrast, a structure can be considered in which a pair of braces are placed between inner side surfaces of a construction so as to configure two sides of an isosceles triangle so that passages and line equipment go through inner side of the braces; however the braces act as obstacles to extremely limit the arrangement of the passages and line equipment, whereby it is difficult to provide braces. Therefore, it is desired to develop a technology that can reinforce a construction without causing an obstacle in the construction like a brace.
An invention of claim 1 is a reinforcement structure that reinforces a construction from inside, and the reinforcement structure includes: (i) a first truss including: a vertical side extending vertically; a first inclined side extending obliquely downward from an upper end of the vertical side; and a second inclined side connecting a lower end of the vertical side and a lower end of the first inclined side; (ii) a second truss sharing the first inclined side with the first truss and including: a horizontal side extending horizontally from the upper end of the vertical side of the first truss; and a second inclined side connecting between a tip end of the horizontal side and the lower end of the first inclined side; (iii) a pair of compound trusses each of which is constituted by the first truss and the second truss and which are horizontally symmetrically placed, wherein the pair of compound trusses are coupled to the construction in a state where, in each of the compound trusses, the vertical side is along an inner side surface of the construction, and the horizontal side is along a ceiling surface of the construction; and (iv) a pair of bent sides each of which is provided in each of the pair of compound trusses and is constituted by the second inclined side of the first truss and the second inclined side of the second truss, wherein each of the bent sides has a shape of being bent toward a side away from a symmetry center of the pair of compound trusses.
Hereinafter, a first embodiment of the invention will be described with reference to
Specifically, the booth 80 includes a plurality of equipment frames 86 in a longitudinal direction (direction perpendicular to the paper surface of
Not shown in the drawing, but inside the side panels there are provided, for example: a beam connecting the upper end parts of the equipment frames 86 and 86; and braces obliquely extended between the equipment frames 86 and 86.
As shown in
To an inside corner part between the column 87 and the beam 88 there is a welded triangular rib 80L. At a lower end part of the column 87, perpendicular walls 89A of angle members 89 are each stacked on and welded to an outer surface of both of the flanges 87F and 87F, and horizontal walls 89B of the angle members 89 are laid on a floor surface. In addition, an anchor bolt (not shown) is inserted through a through hole formed in the horizontal wall 89B as required so as to fix the horizontal wall 89B to a floor surface 80F.
The above booth 80 and a single body of the equipment frame 86, which is a part of the booth 80, correspond to the “construction”. Further, in the present embodiment, a reinforcement structure 10 is provided inside each equipment frame 86. Note that opposing surfaces of the respective columns 87 and 87 of the equipment frame 86 correspond to a “pair of inner side surfaces of the construction”, and a lower surface of the beam 88 corresponds to a “ceiling surface of the construction”; therefore, in the following description, the opposing surfaces of the columns 87 and 87 are each referred to as an “inner side surface 86N of the equipment frame 86”, and the lower surface of the beam 88 is referred to as a “ceiling surface 86S of the equipment frame 86”.
As shown in
The vertical member 14A is obliquely cut at an upper end part at an angle corresponding to an inclination angle of the first inclined side 16 (for example, 45 degrees), and cover plates 14B and 14B are respectively welded to upper and lower opening surfaces.
The second inclined member 17A is obliquely cut at a lower end part and includes a flat surface 17C at the sharp lower end part as shown in
As shown in
As shown in
Then, as shown in
As shown in
Note that, in the present embodiment, the coupling members 19 and 19 constitute a “central fixing part”, and the horizontal members 15A and 15A coupled to each other with the coupling members 19 and 19 serve as a “beam extending horizontally in a straight line shape”.
As shown in
As shown in
As shown in
Between each inner side surface 86N of the equipment frame 86 and the lower end part of the vertical member 14A there is formed a slight gap G. Further, a wedge member 24 is pressed into the gap G, and the lower end part of the compound truss 13 is fixed to the equipment frame 86 by frictional engagement between the wedge member 24 and each of the compound truss 13 and the equipment frame 86.
The configurations of the reinforcement structure 10, the equipment frame 86, and the booth 80 of the present embodiment have been described above. Next, an operation and effect of the above reinforcement structure 10 and the like will be described. In order to install the reinforcement structures 10 of the present embodiment in, for example, an existing booth 80, a plurality of pairs of first trusses 11 and second trusses 12 for a necessary number of reinforcement structures 10 are separately manufactured in advance at a place such as a factory different from an installation place of the reinforcement structures 10. At that time, for example, the coupling member 19 and the upper part coupling member 20 are fixed to each second truss 12, and the first trusses 11 and the bottom spacers 23 are separated; and a plurality of kinds of bottom spacers 23 having different heights are prepared.
At the installation site of the reinforcement structures 10, the first trusses 11 and the second trusses 12 are fixed to each other by bolt fixation between the above-mentioned first inclined members 30 and 31 (see
The assembly work of the reinforcement structure 10 up to this point may also be performed in the following procedure. Specifically, a pair of the second trusses 12 and 12 before the first trusses 11 are fixed are temporarily fixed to the beam 88 of the equipment frame 86 with the upper part coupling members 20. Next, the second trusses 12 and 12 are slid along the beam 88 to align, and the coupling members 19 and 19 of both of the second trusses 12 and 12 are fixed with bolts to each other, and that each upper part coupling member 20 is fully fixed to the beam 88. Then, the first trusses 11 are each fixed to the corresponding second truss 12. By this assembly procedure, in a case where the line equipment 85 is previously installed in the booth 80, the reinforcement structure 10 can be smoothly assembled.
When the work of any of the above-mentioned procedures is finished, the reinforcement structure 10 is hanging from the beam 88 of the equipment frame 86 and is not in contact with the floor surface 80F. Therefore, the bottom spacer 23 is chosen that has a height a bit greater than a space from the lower end surface of each compound truss 13 to the floor surface 80F (or to the horizontal wall 89B or the like if the horizontal wall 89B of the angle member 89 or the like is laid on the floor surface 80F), and the upper surface of bottom spacer 23 is treated with a metal bonding adhesive and is pressed into between the vertical side 14 and the floor surface 80F. In addition, the wedge member 24 is pressed into the gap G between the lower end part of the compound truss 13 and the inner side surface 86N of the equipment frame 86. With these arrangements, the lower end parts of the vertical sides 14 and 14 of the reinforcement structure 10 are fixed to the lower end parts of the equipment frame 86 and to the floor surface 80F by frictional engagement, and the assembly of the reinforcement structure 10 to the equipment frame 86 is thus completed.
When the reinforcement structure 10 is assembled to the equipment frame 86 as described above, vertical sides 14 of the compound trusses 13 and the horizontal side 15 are respectively kept along the inner side surfaces 86N and 86N of the equipment frame 86 and along the ceiling surface 86S of the equipment frame 86. This controls variations in angles between the ceiling surface 86S of the equipment frame 86 and each of the inner side surfaces 86N and 86N. Specifically, strength of the equipment frame 86 against a lateral-shaking earthquake is increased. Here, the first truss 11 and the second truss 12 of each of the compound trusses 13 and 13 share the first inclined side 16 extending obliquely downward from the upper end of the vertical side 14. Further, a pair of bent sides 50 and 50, each of which is constituted by the second inclined side 17 and 18 of the first truss 11 and the second truss 12, are structured to be bent toward the side away from the symmetry center of the pair of compound trusses 13 and 13. This arrangement can secure a large space between the pair of compound trusses 13 and 13. That is, the reinforcement structure 10 of the present embodiment can reinforce the equipment frame 86 without causing any obstacle inside the equipment frame 86 like braces. As a result, earthquake-resistance strength of the equipment frame 86 and the booth 80 can be higher than before, and at the same time, a large internal space is secured.
Further, the “reinforcement structure” may be configured such that, for example, a part of the equipment frame 86 constitutes the vertical side and the horizontal side, which are parts of the reinforcement structure. However, in the reinforcement structure 10 of the present embodiment, members separate from the equipment frame 86 constitute all of the reinforcement structure 10, so that the installation work of the reinforcement structure 10 in a previously installed equipment frame 86 can be performed easily. In addition, the horizontal members 15A and 15A of the pair of compound trusses 13 and 13 are separately provided, and the horizontal members 15A and 15A are structured to be fixed to each other; therefore, the reinforcement structure 10 can be disassembled into the pair of compound trusses 13 and 13 to be transported to an installation site. Further, each compound truss 13 can be transported to an installation site in a state of being disassembled into the first truss 11 and the second truss 12, and the transportation work can therefore be performed easily.
Further, the pair of first inclined members 30 and 31, which are stacked and fixed between the first truss 11 and the second truss 12, are configured of channel members, and the opposing walls 30A, 31A of the channel members therefore serve as a rib, so that strength of the part shared by the first truss 11 and the second truss 12 can be increased. In addition, the horizontal members 15A and 15A of the pair of compound trusses 13 and 13 are coupled to each other and function as a “straight line member” extending in a straight line shape; therefore, a horizontal load due to a lateral-shaking earthquake is efficiently transferred between the pair of compound trusses 13 and 13 through the straight line member, so that the load to the equipment frame 86 can be reduced.
A reinforcement structure 10A of the present embodiment shown in
The reinforcement structure 10A of the present embodiment also provides a similar operation and effect to the first embodiment. Further, in the reinforcement structure 10A, a horizontal load due to a lateral-shaking earthquake is transferred between the pair of compound trusses 13 and 13 through the central hinge part 19V, and the load to the equipment frame 86 can be reduced.
Line equipment 85 shown in
Reinforcement structures 10B of the present embodiment are shown in
A reinforcement structure 10C of the present embodiment is shown in
(1) In the above reinforcement structure 10 of the first embodiment, a plurality of kinds of first trusses 11 and second trusses 12 whose sides except the first inclined side 16 have different lengths may be prepared, and the first trusses 11 and the second trusses 12 may be arbitrarily combined and used.
(2) In the above embodiments, a fixing method between members may be arbitrarily changed to bolt, rivet, welding, adhesive, or the like.
(3) In the above first embodiment, the height of the bottom spacer 23 is changed to adjust the height of the compound truss 13; however, as shown in
(4) In the above first embodiment, the coupling members 19 and 19 are stacked in a horizontal direction, but the coupling members 19 and 19 may be configured to be stacked in a vertical direction. However, when the coupling members 19 and 19 are configured to be stacked in a horizontal direction as in the above embodiment, the pair of compound trusses 13 and 13 can be made in the same shape, and the work of fixing the coupling members 19 and 19 to each other can be easy.
(5) In the above embodiments, the compound trusses 13 and 13 are coupled to each other; however, the following configuration may be used. The compound trusses 13 and 13 are not coupled to each other but are coupled to the ceiling surfaces 80S or 86S of the construction, and the compound trusses 13 and 13 are coupled to each other via the construction.
(6) In the above embodiments, the vertical member 14A of compound truss 13 is overlapped on the inner side surface 86N or 86V of the construction, but the following measures may be taken to reinforce the construction, for example. The vertical member 14A of the compound truss 13 is placed at a position inwardly shifted from the inner side surface 86N or 86V of the construction and is fixed to the floor surface 80F, and the horizontal member 15A is fixed to the ceiling surface 80S or 86S of the construction.
(7) In the above embodiments, the first inclined members 30 and 31 are configured of channel members; however, the first inclined members 30 and 31 may be configured of angle members.
(8) In the above embodiments, the horizontal members 15A and 15A of the pair of compound trusses 13 and 13 are configured of individual members; however, the horizontal members 15A and 15A may be configured of a single member.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2017-130506 | Jul 2017 | JP | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/JP2018/010126 | 3/15/2018 | WO | 00 |
