JP7375286B2 - Tubular member fixing structure and tubular member fixing method - Google Patents

Description

The present invention relates to a structure for fixing a tubular member and a method for fixing a tubular member.

Patent Document 1 discloses a technology related to a reinforcing member used in a method for seismically reinforcing utility poles that can realize an earthquake-resistant reinforcing structure for utility poles with a high bending reinforcement effect. In this prior art, two half-split reinforcing members each having a plurality of protrusions on the inner surface are assembled to surround and reinforce a utility pole.

Patent Document 2 discloses a technique related to a bracket for a protruding scaffold that has a structure that incorporates metal fittings and handrail supports that are attached to leg pipes of a building frame of a framework scaffold. In this prior art, the mounting member is made of an arc-shaped halved tube and is lined with hard rubber.

Patent No. 6392577 Japanese Patent Application Publication No. 9-25718

The pair of half-split members constituting the tubular member are clamped and fastened with bolts from both sides of the member to be fixed, and the gap between the inner surface of the tubular member and the outer surface of the member to be fixed is filled with a filler and hardened, thereby forming the tubular member. A fixing structure for a tubular member is known in which a tubular member is fixed to a member to be fixed.

In such a structure for fixing a tubular member, before filling with filler, a wooden wedge is driven between the inner surface of the tubular member and the outer surface of the member to be fixed, to adjust the gap between the two and temporarily fix the tubular member. There are things to do. However, when temporarily fixing by driving a wooden wedge in this way, it is necessary to remove the wooden wedge when filling with the filler. In addition, adjusting the gap by the amount of drive of a wooden wedge is difficult to ensure accuracy and takes time. Therefore, there is room for improvement in improving the construction efficiency of fixing the tubular member to the member to be fixed.

In the technique of Patent Document 1, since the plurality of convex portions on the inner surface of the half-split reinforcing member do not deform, the gap between the half-split reinforcing member and the utility pole cannot be adjusted.

In the technique of Patent Document 2, the arc-shaped halved tube is lined with hard rubber, and it is not possible to fix the tube by filling the gap between the tube and the columnar tube with a filler.

In view of the above facts, the present invention aims to improve the construction efficiency of fixing a tubular member to a member to be fixed.

A first aspect includes a tubular member configured of a pair of half-split members sandwiching a member to be fixed from both sides and fastened with bolts; This is a fixing structure for a tubular member, including an elastic member that is compressively deformed in accordance with the movement of the tubular member, and a filler that hardens when filled into a gap between the inner surface of the tubular member and the outer surface of the fixed member.

In the fixing structure of the tubular member of the first aspect, the elastic member provided on the inner surface of each of the pair of half-split members constituting the tubular member is compressively deformed according to the amount of tightening of the bolt fastening, so that the tubular member The gap between the inner surface of the member and the outer surface of the member to be fixed is adjusted, and the tubular member is temporarily fixed to the member to be fixed. Then, the gap between the inner surface of the temporarily fixed tubular member and the outer surface of the member to be fixed is filled with a filler and hardened, thereby fixing the tubular member to the member to be fixed. Therefore, compared to the case where a wooden wedge is driven into the gap between the inner surface of the tubular member and the outer surface of the fixed member to adjust the gap and temporarily fix the tubular member to the fixed member, the construction efficiency of fixing the tubular member to the fixed member is improved.

A second aspect is the tubular member fixing structure according to the first aspect, wherein the elastic members are provided at a plurality of locations on the inner surface of the half-split member.

In the tubular member fixing structure of the second aspect, since the elastic members are provided at multiple locations on the inner surface of the half-split member, the efficiency of filling the gap with the filler is improved.

A third aspect includes a step of sandwiching a member to be fixed from both sides between a pair of half-split members each having an elastic member provided on the inner surface of the tubular member, and fastening the pair of half-split members with bolts, and fastening the bolts. adjusting the amount of tightening of the elastic member to adjust the amount of compressive deformation of the elastic member, adjusting the gap between the outer surface of the member to be fixed and the inner surface of the tubular member, and temporarily fixing the tubular member to the member to be fixed. filling the gap between the inner surface of the temporarily fixed tubular member and the outer surface of the member to be fixed with a filler and curing the same, and fixing the tubular member to the member to be fixed. This is a method of fixing a tubular member.

In the method for fixing a tubular member according to the third aspect, the amount of compressive deformation of the elastic member provided on the inner surface of the half-split member is adjusted by adjusting the tightening amount of bolt fastening, and the inner surface of the tubular member and the member to be fixed are adjusted. The tubular member is temporarily fixed to the member to be fixed while adjusting the gap between the tubular member and the outer surface of the member. Then, the gap between the inner surface of the temporarily fixed tubular member and the outer surface of the member to be fixed is filled with a filler and cured, thereby fixing the tubular member to the member to be fixed. Therefore, compared to the case where a wooden wedge is driven into the gap between the inner surface of the tubular member and the outer surface of the fixed member to adjust the gap and temporarily fix the tubular member to the fixed member, the construction efficiency of fixing the tubular member to the fixed member is improved.

According to the present invention, it is possible to improve the construction efficiency of fixing a tubular member to a member to be fixed.

FIG. 2 is a perspective view of a roof in which a bracket is fixed to a truss member by the tubular member fixing structure of one embodiment. FIG. 2 is a perspective view of a bracket fixed to a truss member connected to a connecting member to which a lighting fixture is attached. It is an exploded perspective view of the state before fixing a bracket to a truss member. FIG. 3 is a cross-sectional view of a cross section perpendicular to the axial direction in a state where the bracket is temporarily fixed to the truss member. (A) is a process diagram of the state before the bracket is fixed to the truss member, and (B) is a process diagram of the state after it is fixed.

<Embodiment>
A structure for fixing a tubular member and a method for fixing a tubular member according to an embodiment of the present invention will be described.

[composition]
The configuration of the tubular member fixing structure of this embodiment will be described.

The roof 12 of this embodiment shown in FIG. 1 is a circular roof of an arch truss structure of a structure 10 such as a stadium.

As shown in FIGS. 1 and 2, the fixing structure 15 of the present embodiment fixes a bracket 100, which is an example of a tubular member, to a truss member 20, which is an example of a member to be fixed that constitutes the roof 12. A connecting member 30 is connected to the connecting member 30. That is, the connecting member 30 is installed between the truss members 20 using the bracket 100. A pedestal 40 is provided on the connecting material 30, and a lighting fixture 42 is attached to this pedestal 40.

As shown in FIGS. 3 and 4, the bracket 100 is composed of a pair of half-split members 110. The half-split member 110 includes a semi-cylindrical portion 112 in the shape of a halved cylindrical steel pipe, a flange portion 114 extending radially outward from the end of the semi-cylindrical portion 112, and an apex of an arc of the semi-cylindrical portion 112. and a connecting portion 116 extending radially outward from the portion.

Note that, as shown in FIGS. 2 and 3, the aforementioned connecting member 30 is connected to the connecting portion 116 of the bracket 100.

As shown in FIGS. 3 and 4, an elastic member 120 is joined to the inner surface 113 of the semi-cylindrical portion 112 of the half-split member 110. As shown in FIGS. The elastic members 120 are provided at multiple locations on the inner surface 113. Note that, although the elastic member 120 of this embodiment is made of hard rubber, the material is not limited to this. Further, in this embodiment, the elastic member 120 has a rectangular parallelepiped shape or a cubic shape, but is not limited to this shape.

The half-split members 110 of the bracket 100 sandwich the truss member 20 from both sides, and the flange portions 114 are bolted together using bolts 150 and nuts 152 (see also FIG. 2). Then, the gap 25 (see FIG. 4) between the inner surface 113 of the semi-cylindrical portion 112 of the half-split member 110 and the outer surface 21 of the truss member 20 is filled with filler J1 (see FIG. 2) and hardened, thereby forming the bracket. 100 is fixed to the truss member 20. Note that, although an epoxy adhesive is used as the filler J1 (see FIG. 2) in this embodiment, the filler J1 (see FIG. 2) is not limited to this. Further, as shown in FIGS. 2 and 5(B), the exposed surface of the filler J1 is treated with a finishing sealing material J2.

In this embodiment, the gap 25 between the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 shown in FIG. 4 is set to 15 mm. Further, the thickness of the elastic member 120 before being compressed and deformed is set to 20 mm. Note that the thicknesses of the gap 25 and the elastic member 120 are merely examples, and are not limited thereto.

[Construction method]
Next, an example of the construction method will be explained.

First, as shown in FIGS. 3 and 5(A), the truss member 20 is sandwiched from both sides by a pair of half-split members 110, each of which has an elastic member 120 (see FIG. 3) on its inner surface 113.

Next, as shown in FIG. 4, the flanges 114 of the half-split members 110 are bolted together, the amount of tightening of the bolts is adjusted to adjust the amount of compressive deformation of the elastic member 120, and the half-split members The gap 25 between the inner surface 113 of the bracket 110 and the outer surface 21 of the truss member 20 is adjusted, and the bracket 100 is temporarily fixed to the truss member 20.

In this embodiment, as described above, the amount of tightening of bolts is adjusted so that the gap 25 between the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 is 15 mm.

As shown in FIGS. 2 and 5(B), the gap 25 (see FIG. 4) between the inner surface 113 of the temporarily fixed bracket 100 and the outer surface 21 of the truss member 20 is filled with filler J1 (see FIG. 2). After curing, the bracket 100 is fixed to the truss member 20 while maintaining the gap 25 (see FIG. 4) between the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20. Further, the exposed surface of the filler J1 is treated with a finishing sealing material J2 (see FIG. 5(B)).

In addition, as shown in FIGS. 2 and 5(B), a connecting member 30 is connected to the connecting portion 116 of the bracket 100, and a lighting fixture 42 (see FIG. 5(B)) is attached to a pedestal 40 fixed to the connecting member 30. (See also Figure 1).

[Action and effect]
Next, the functions and effects of this embodiment will be explained.

The elastic members 120 provided on the inner surfaces 113 of each of the pair of half-split members 110 constituting the bracket 100 are compressed and deformed according to the tightening amount of the bolts, so that the inner surface 113 of the bracket 100 and the truss member 20 are compressed and deformed. The gap 25 between the bracket 100 and the outer surface 21 is adjusted, and the bracket 100 is temporarily fixed to the truss member 20.

Then, by filling the gap 25 between the temporarily fixed inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 with the filler J1 and hardening, the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 are The bracket 100 is fixed to the truss member 20 with the gap 25 maintained.

Therefore, compared to the case where a wooden wedge is driven into the gap 25 between the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 to adjust the gap and temporarily fix the bracket 100, the construction efficiency of fixing the bracket 100 to the truss member 20 is improved. improves.

Furthermore, since the elastic members 120 are provided at multiple locations on the inner surface 113 of the bracket 100, the efficiency of filling the gap 25 with the filler J1 is improved.

<Others>
Note that the present invention is not limited to the above embodiments.

For example, in the above embodiment, the elastic member 120 is made of hard rubber, but is not limited to this. The elastic member 120 may be made of any material as long as it can adjust the amount of compressive deformation depending on the amount of tightening of the bolt and can temporarily fix the bracket 100 to the truss member 20.

Further, for example, the filler J1 filled in the gap 25 between the inner surface 113 of the bracket 100 and the outer surface 21 of the truss member 20 is an epoxy resin, but is not limited thereto. The filler J1 may be any material as long as it can fix the bracket 100 to the truss member 20 by filling the gap 25 and hardening.

Further, for example, in the above embodiment, the present invention is applied to the fixing structure and fixing method of the bracket 100 for installing the connecting member 30 between the truss members 20 of the roof 12 of the arch truss structure of the structure 10 such as a stadium. However, it is not limited to this. INDUSTRIAL APPLICATION This invention can be widely applied to the fixing structure and fixing method of the tubular member comprised from a pair of half-shaped member which clamped the member to be fixed from both sides, and were fastened with bolts.

Furthermore, the invention may be implemented in various ways without departing from the spirit of the invention.

15 Fixed structure 20 Truss member (an example of fixed member)
21 External surface 25 Gap 100 Bracket (an example of a tubular member)
110 half-split member 113 inner surface 120 elastic member J1 filler

Claims (3)

A tubular member composed of a pair of half-split members that are fastened together with bolts that sandwich the member to be fixed from both sides;
provided on the inner surface of each of the half-shaped members, contacts the outer surface of the fixed member, compresses and deforms depending on the amount of tightening of the bolt, and connects the inner surface of the tubular member with the outer surface of the fixed member. an elastic member that adjusts the gap between the
a filler that is filled into a gap between the inner surface of the tubular member and the outer surface of the fixed member and hardens;
Fixed structure of tubular member with. The elastic members are provided at a plurality of locations on the inner surface of the half-split member,
A fixing structure for a tubular member according to claim 1. sandwiching the fixed member from both sides between a pair of half-split members each having an elastic member on the inner surface of the tubular member;
The pair of half-split members are fastened with bolts, the amount of tightening of the bolts is adjusted to adjust the amount of compressive deformation of the elastic member that is in contact with the outer surface of the fixed member, and the amount of compressive deformation of the elastic member in contact with the outer surface of the fixed member is adjusted. adjusting the gap between the tubular member and the inner surface and temporarily fixing the tubular member to the fixed member;
filling a gap between the temporarily fixed inner surface of the tubular member and the outer surface of the fixed member with a filler and curing it to fix the tubular member to the fixed member;
A method for fixing a tubular member comprising: