JP2020133144A - Beam member loading method, beam member and bracket member - Google Patents

Abstract

To provide a beam member loading method capable of efficiently loading a beam member, and a beam member and a bracket member that are preferably used in the method.SOLUTION: There is provided a beam member loading method used in fitting a beam member at a predetermined position of a structure. The structure includes a bracket member, which is joined with the beam member, and a plate member, which is fitted on one surface side of the bracket member so as to protrude from an end face of the bracket member. The method lifts the beam member with a lifting device to vicinity of a predetermined position, moves the beam member closer to the bracket member from the other surface side of the bracket member, butts the beam member to the plate member so that the beam member is parallel with the predetermined position, and subsequently, moves the beam member downward with the lifting device so that a taper surface formed on the end face of the bracket member contacts a taper surface formed on an end face of the beam member.SELECTED DRAWING: Figure 2

Description

The present invention relates to a method for carrying in a beam member, a beam member, and a bracket member.

Conventionally, beam members used in structures are lifted near the installation target position between girders and columns by using a lifting device such as a crane, and then aligned with the assistance of workers. Etc. are performed and it is installed in a predetermined position. For example, Patent Document 1 discloses a method of joining a steel frame beam that guides a steel frame beam along a guide plate arranged on one surface and the other surface of an existing steel frame member.

Japanese Unexamined Patent Publication No. 2002-81938

By the way, in the construction field including the construction of structures, it is desired to reduce the work load and improve the work efficiency, and the same applies to the case of carrying in the steel frame beam as described above. However, since the method disclosed in Patent Document 1 needs to guide the steel beam to the limited narrow space between the guide plates, guidance and assistance by a worker are still indispensable for carrying in the beam member. , Further efficiency improvement is desired. Patent Document 1 does not disclose any knowledge for reducing the intervention of auxiliary work when carrying in such a beam member.

In view of the above problems, at least one embodiment of the present invention aims to provide a method for carrying in a beam member capable of efficiently carrying in a beam member, and a beam member and a bracket member suitable for use in the method. To do.

(1) The method for carrying in the beam member according to at least one embodiment of the present invention is
It is a method of carrying in a beam member used when attaching a beam member to a predetermined position of a structure.
The structure includes at least one bracket member attached to the structure and joined to the beam member, and a plate member attached to one side of the bracket member so as to project from an end surface of the bracket member. ,
The lifting device lifts the beam member to the vicinity of the predetermined position and brings the beam member closer to the bracket member from the other surface side of the bracket member so that the beam member becomes parallel to the predetermined position. In the horizontal movement step of bringing the beam member into contact with the plate member,
After the horizontal movement step, the lifting device brings the beam member into contact with the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member. A vertical movement step that moves downward,
Is equipped with.

According to the method (1) above, a plate member is attached to one surface side of the bracket member attached to the structure so as to protrude from the end surface of the bracket member, and the plate member is attached to the other bracket member. When the beam members lifted by the lifting device are brought close to each other and brought into contact with each other from the surface side, the orientation of the beam members in the horizontal direction is corrected and the beam members are arranged parallel to a predetermined position. After that, the lifting device moves the beam member downward so that the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member come into contact with each other, whereby the length of the beam member is lengthened. Positional deviations or errors in the direction are corrected. That is, according to the method (1) above, even if the horizontal position or orientation of the beam member lifted near the predetermined position deviates from the predetermined position, the position with respect to the predetermined position of the structure The work of carrying in the beam member can be realized by using the lifting device. Therefore, it is possible to provide a method for carrying in a beam member capable of efficiently carrying in the beam member.

(2) In some embodiments, in the method described in (1) above,
The at least one bracket member includes one end side bracket member joined to one end side of the beam member and the other end side bracket member joined to the other end side of the beam member.
The horizontal movement step is
A step of bringing one end side of the beam member into contact with a plate member attached to the one end side bracket member,
Even if the step of rotating the beam member around one end side of the beam member to bring the other end side of the beam member into contact with the plate member attached to the other end side bracket member is included. Good.

According to the method (2) above, one end side of the beam member is brought into contact with the plate member attached to the one end side bracket member by the lifting device, and the beam member is rotated around one end side of the beam member. As a result, the other end side of the beam member is brought into contact with the plate member attached to the other end side bracket member. In this way, the step of arranging the beam member in parallel with the predetermined position by bringing the beam member suspended in the vicinity of the predetermined position into contact with the plate member on one end side and the other end side, respectively, is high. It can be realized with accuracy.

(3) In some embodiments, in the method described in (1) or (2) above,
The beam member
The first upper flange portion having a longitudinal direction and
A first lower flange portion that is arranged along the longitudinal direction so as to face the first upper flange portion and is shorter in the longitudinal direction than the first upper flange portion.
A first web portion that connects the first upper flange portion and the first lower flange portion, and is formed in a trapezoidal shape in which the lower side is shorter than the upper side by forming the tapered surfaces at both ends in the longitudinal direction. Including the first web part and
The bracket member
The second upper flange portion having a longitudinal direction and
A second lower flange portion that is arranged along the longitudinal direction so as to face the second upper flange portion and is longer in the longitudinal direction than the second upper flange portion.
A second web portion that connects the second upper flange portion and the second lower flange portion, and the lower side is formed longer than the upper side by forming the tapered surface at one end in the longitudinal direction. Including 2 web parts
The plate member may be attached to the second web portion.

According to the method (3) above, in the plate attaching step, the plate member is attached so as to protrude from the end surface of the second web portion of the bracket member, and in the horizontal movement step, the plate member is attached to the second web portion of the bracket member. The first web portion of the beam member is brought into contact with the attached plate member from the other surface side of the bracket member. Here, when the plate member is provided on the beam member side, the area that receives the wind during lifting by the lifting device is large. On the other hand, by attaching the plate member to the second web portion of the bracket member as in the method (3) above, the influence of the wind on the beam member lifted by the lifting device can be suppressed, so that it is safe. It is possible to provide a method for carrying in a beam member that can be efficiently realized.

(4) In some embodiments, in the method described in (3) above,
The first upper flange portion of the beam member includes an upper extension portion extending in the longitudinal direction from the upper side of the first web portion.
The second lower flange portion of the bracket member includes a lower extension portion that extends in the longitudinal direction from the lower side of the second web portion.
In the horizontal movement step, the lower surface of the upper extension portion abuts on a part of the upper end of the second web portion, and a part of the lower end of the first web portion is the upper surface of the lower extension portion. The beam member may be moved downward so as to abut against.

According to the method (4) above, the upper extending portion of the beam member comes into contact with a part of the upper end of the second web portion of the bracket member, and a part of the lower end of the first web portion of the bracket member. It is placed on the bracket member so as to abut on the upper surface of the lower extension portion. That is, since the beam member can be lowered so that at least a part of the beam member overlaps the bracket member and is placed on the bracket member, the beam member after lowering requires a special member or process. It can be stably supported by the bracket member without any problem. Therefore, a method for carrying in a beam member capable of efficiently carrying in the beam member is provided.

(5) In some embodiments, in the method according to any one of (1) to (4) above,
At least one of the beam member and the structure is a guide rib that locks the beam member and the structure arranged at a predetermined position, and includes a guide rib having side surfaces along the vertical direction.
In the vertical movement step, the guide rib may be engaged with at least one of the beam member and the structure while moving the beam member downward.

According to the method (5) above, in the vertical movement step, by moving the beam member downward by the lifting device, in addition to the above-mentioned correction of the displacement in the longitudinal direction due to the tapered surface, the beam member and the structure Since the object is locked via the guide rib, the beam member after being attached to the predetermined position of the structure can be more reliably supported on the structure. Therefore, a method for carrying in a beam member capable of efficiently carrying in the beam member is provided.

(6) The method for carrying in the beam member according to at least one embodiment of the present invention is
It is a method of carrying in a beam member used when attaching a beam member to a predetermined position of a structure.
The structure includes at least one bracket member that is attached to the structure and joined to the beam member.
The beam member includes a plate member attached to one surface side of the beam member so as to project from an end surface of the beam member.
The lifting device lifts the beam member to the vicinity of the predetermined position, and brings the other surface side of the beam member closer to the bracket member so that the beam member is parallel to the predetermined position. A horizontal movement step of bringing the member into contact with the bracket member, and
After the horizontal movement step, the lifting device brings the beam member into contact with the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member. A vertical movement step that moves downward,
Is equipped with.

According to the method (6) above, in the plate attaching step, the plate member is attached to one surface side of the beam member so as to protrude from the end surface of the beam member, and in the horizontal movement step, the bracket attached to the structure. By bringing the other surface side of the beam member closer to the member by the lifting device, the orientation of the beam member in the horizontal direction is corrected and the beam member is arranged parallel to the predetermined position. After that, the lifting device moves the beam member downward so that the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member come into contact with each other, whereby the length of the beam member is lengthened. Positional deviations or errors in the direction are corrected. That is, according to the method (6) above, as described in the above (1), if the horizontal position or orientation of the beam member lifted in the vicinity of the predetermined position deviates from the predetermined position. Even if there is, the work of bringing in the beam member to a predetermined position of the structure can be realized by using the lifting device. Therefore, it is possible to provide a method for carrying in a beam member capable of efficiently carrying in the beam member.

(7) The beam member according to at least one embodiment of the present invention is
A beam member that is attached to a predetermined position in a structure.
The first upper flange portion having a longitudinal direction and
A first lower flange portion that is arranged along the longitudinal direction so as to face the first upper flange portion and is shorter in the longitudinal direction than the first upper flange portion.
A first web portion that connects the first upper flange portion and the first lower flange portion, and is formed in a trapezoidal shape in which the lower side is shorter than the upper side by forming the tapered surfaces at both ends in the longitudinal direction. With the first web part,
The first upper flange portion includes an upper extending portion extending so as to project in the longitudinal direction from the upper side of the first web portion.

According to the configuration (7) above, since the beam member includes the upper extension portion, the beam member is lowered so that at least a part of the beam member overlaps the bracket member and is placed on the bracket member. Therefore, the beam member after descent can be stably supported by the bracket member without requiring a special member or process. Therefore, it is possible to provide a beam member capable of efficiently carrying in the beam member.

(8) The bracket member according to at least one embodiment of the present invention is
A bracket member that can be attached to a structure
The second upper flange portion having a longitudinal direction and
A second lower flange portion that is arranged along the longitudinal direction so as to face the second upper flange portion and is longer in the longitudinal direction than the second upper flange portion.
A second web portion that connects the second upper flange portion and the second lower flange portion, and the lower side is formed longer than the upper side by forming the tapered surface at one end in the longitudinal direction. With 2 web parts,
The second lower flange portion includes a lower extending portion extending so as to project in the longitudinal direction from the lower side of the second web portion.

According to the configuration of (8) above, since the bracket member includes the lower extension portion, at least a part of the beam member overlaps the lower extension portion of the bracket member and is placed on the bracket member. Since the beam member can be lowered in this way, the lowered beam member can be stably supported by the bracket member without requiring a special member or process. Therefore, it is possible to provide a bracket member capable of efficiently carrying in the beam member.

According to at least one embodiment of the present invention, it is possible to provide a method for carrying in a beam member capable of efficiently carrying in the beam member, and a bracket member and a beam member suitable for use in the method.

It is the schematic which shows the periphery of the structure to which the method of carrying in the beam member which concerns on at least one Embodiment of this invention is applied. It is a flowchart which shows the carry-in method of the beam member which concerns on one Embodiment. It is a figure which shows the structural example of the bracket member in one Embodiment, (A) is a front view, (B) is a bottom view. It is a figure which shows the structural example of the beam member in one Embodiment, (A) is a front view, (B) is a plan view. It is a schematic diagram which shows the carry-in method of the beam member which concerns on one Embodiment, (A) is the state which arranged the beam member parallel to a predetermined position, (B) is descending along the taper surface of a beam member. The state (C) indicates a state in which the beam member is arranged at a predetermined position. It is a flowchart which shows the carry-in method of the beam member which concerns on one Embodiment. It is a schematic diagram which shows the carry-in method of the beam member which concerns on one Embodiment, (A) is the state which arranged the beam member in the vicinity of a predetermined position, (B) is a state that one end of the beam member is brought into contact with the plate member of a structure. (C) indicates a state in which the beam member is lowered along the tapered surface, and (D) indicates a state in which the beam member is arranged at a predetermined position. It is a schematic diagram which shows the carry-in method of the beam member which concerns on one Embodiment, (A) is the state which one end of the beam member was brought into contact with the plate member of a structure, (B) is the state which brought the beam member along a taper surface. The lowered state (C) indicates a state in which the beam member is arranged at a predetermined position. It is a flowchart which shows the carry-in method of the beam member which concerns on other embodiment. It is the schematic which shows the carry-in method of the beam member which concerns on other embodiment, (A) is the front view of the beam member, (B) is the bottom view of the same, (C) is the front view of the bracket member, (D) is. It is the same plan view.

Hereinafter, some embodiments of the present invention will be described with reference to the accompanying drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the components described as embodiments or shown in the drawings are not intended to limit the scope of the present invention to this, and are merely explanatory examples. Absent.
For example, expressions that represent relative or absolute arrangements such as "in a certain direction", "along a certain direction", "parallel", "orthogonal", "center", "concentric" or "coaxial" are exact. Not only does it represent such an arrangement, but it also represents a state of relative displacement with tolerances or angles and distances to the extent that the same function can be obtained.
For example, expressions such as "same", "equal", and "homogeneous" that indicate that things are in the same state not only represent exactly the same state, but also have tolerances or differences to the extent that the same function can be obtained. It shall also represent the state of existence.
For example, an expression representing a shape such as a quadrangular shape or a cylindrical shape not only represents a shape such as a quadrangular shape or a cylindrical shape in a geometrically strict sense, but also an uneven portion or chamfering within a range where the same effect can be obtained. The shape including the part and the like shall also be represented.
On the other hand, the expressions "equipped", "equipped", "equipped", "included", or "have" one component are not exclusive expressions that exclude the existence of other components.

FIG. 1 is a schematic view showing a method of carrying in a beam member according to at least one embodiment of the present invention. FIG. 2 is a flowchart showing a method of carrying in the beam member according to the embodiment. 3A and 3B are views showing a configuration example of a beam member in one embodiment, where FIG. 3A is a front view and FIG. 3B is a bottom view. 4A and 4B are views showing a configuration example of a bracket member according to an embodiment, where FIG. 4A is a front view and FIG. 4B is a plan view.
As shown in FIGS. 1 to 4, the method for carrying in the beam member according to at least one embodiment of the present invention is to carry in the beam member used when the beam member 20 (horizontal member) is attached to a predetermined position of the structure 1. The method. In this method, the structure 1 projects from the end surface 17 of the bracket member 10 to at least one bracket member 10 joined to the beam member 20 and one surface 11 side (see FIG. 4B) of the bracket member 10. Includes the plate member 18 attached so as to. Then, in the above method, the beam member 20 is lifted to the vicinity of a predetermined position by the lifting device 5, and the beam member 20 is brought closer to the bracket member 10 from the other surface 12 side of the bracket member 10 attached to the structure 1. After the horizontal movement step S30 in which the beam member 20 is brought into contact with the plate member 18 so that the beam member 20 is parallel to the predetermined position and the horizontal movement step S30, the bracket member 10 is provided by the lifting device 5. A vertical movement step S40 for moving the beam member 20 downward so as to bring the tapered surface 16 formed on the end surface 17 of the beam member 20 into contact with the tapered surface 26 formed on the end surface 27 of the beam member 20. There is.
In some embodiments, the beam member is carried in by using at least one of the bracket member attaching step S10 for attaching the bracket member 10 to the structure 1 or the plate attaching step S20 for attaching the plate member 18 to the bracket member 10. You may also have more.

In the bracket member attachment step S10, the bracket member 10 is attached to the structure 1 by a coupling means such as bolt connection or welding. The structure 1 in some embodiments includes a column member 3 (see, for example, FIGS. 1, 4 and 5), and the bracket member 10 is attached to one or more surfaces of the column member 3. The bracket member 10 is fixed to the column member 3 in the step S10, and after the beam member 20 is arranged at a predetermined position through steps S20, S30 and S40, the bracket member 10 is joined to the beam member 20 to form the beam 2. To do. Such a bracket member attaching step S10 may be performed in advance at a factory or the like, or may be performed at the site.

In the plate attachment step S20, the plate member 18 is attached to the bracket member 10 by a coupling means such as bolt connection or welding. The one surface 11 of the bracket member 10 may be a surface facing the inside of the structure 1 when attached to the structure 1, for example, and the other surface 12 of the bracket member 10 is attached to the structure 1. At that time, it may be a surface facing the outside of the structure 1. In this way, the beam member 20 can be carried in from the outside of the structure 1 by the lifting device 5, so that smooth accessibility during work can be ensured. It is also possible to use the one surface 11 as the outer surface of the structure 1 and the other surface 12 as the inner surface of the structure 1.
The end surface 17 of the bracket member 10 may be, for example, a tapered surface 16 formed on the bracket member 10. That is, the plate member 18 is arranged so as to overlap at least a part of the tapered surface 16 when viewed from the other surface 12 side of the bracket member 10. As shown in FIGS. 1, 4 and 5, for example, the plate member 18 is arranged upward to horizontally from the tapered surface 16 of the bracket member 10 (in the example shown in FIGS. 1, 4 and 5 in the left-right direction on the paper surface). It may be provided so as to protrude.

The plate member 18 can function as a part of a guide plate that guides the beam member 20 to a predetermined position when the beam member 20 is carried in. The plate member 18 in some embodiments is fixed to one side 11 of the bracket member 10 along the vertical direction. As the plate member 18, for example, a splice plate 18A for joining the beam member 20 and the bracket member 10 by bolt connection after the beam member 20 is carried in may be applied.

The order of the bracket member mounting step S10 and the plate mounting step S20 is not particularly limited, and either step may be executed first.

The horizontal movement step S30 is executed, for example, at the construction site of the structure 1 under construction. This horizontal movement step S30 can be executed after the steps S10 and S20. In the horizontal movement step S30, the beam member 20 is moved mainly in the horizontal direction by using the lifting device 5, so that when the beam member 20 is attached to one surface (for example, the structure 1) of the beam member 20. The surface of the structure 1 facing the inside) is brought close to the other surface 12 of the bracket member 10 and brought into contact with the plate member 18. At that time, for example, the beam member 20 abuts on the plate member 18 so that the tapered surface 26 of the beam member 20 and the tapered surface 16 of the bracket member 10 in contact with the tapered surface 26 overlap in a plan view. Let me. The lifting height of the beam member 20 by the lifting device 5 is such that at least a part of the lower part of the beam member 20 in the lifted state is horizontal with at least a part of the upper part of the plate member 18 provided in the structure 1. It may be an overlapping height.
In the present disclosure, the predetermined position means the position and orientation in which the beam member 20 should be arranged, and parallel to the predetermined position means at least the orientation of the position and orientation in which the beam member 20 should be arranged. It shall mean the case where is matched.

Subsequently, the vertical movement step S40 will be described.
5A and 5B are schematic views showing a method of carrying in a beam member according to an embodiment. FIG. 5A shows a state in which the beam member is arranged parallel to a predetermined position, and FIG. 5B shows a state along a tapered surface of the beam member. The descending state (C) indicates a state in which the beam member is arranged at a predetermined position.
In the vertical movement step S40, the beam member 20 (see FIG. 5A) arranged parallel to the predetermined position above the predetermined position is lowered by using the lifting device 5. When the beam member 20 is lowered in the vertical direction, the tapered surface 26 of the beam member 20 comes into contact with the tapered surface 16 of the bracket member 10 (see FIG. 5B). For example, as shown in FIGS. 3 and 5, when tapered surfaces 26 are formed at both ends in the longitudinal direction, one of the tapered surfaces 26 may abut on the tapered surface 16 of the bracket member 10. After that, when the beam member 20 is continuously lowered by the lifting device 5, the beam member 20 guided by the tapered surfaces 16 and 26 remains parallel to the predetermined position and moves in the horizontal direction while being slanted downward. It moves downward (see FIG. 5 (B)). Then, the beam member 20 is further lowered by the lifting device 5, so that the beam member 20 is arranged at a predetermined position (see FIG. 5C).

According to the method described above, the plate member 18 is attached to the one surface 11 side of the bracket member 10 attached to the structure 1 so as to project from the end surface 17 of the bracket member 10, and the plate member 18 is attached to the plate member 18. Then, the beam member 20 lifted by the lifting device 5 is brought close to and abutted from the other surface 12 side of the bracket member 10, so that the orientation of the beam member 20 in the horizontal direction is corrected and the beam member 20 is brought into a predetermined position. It is arranged parallel to each other. After that, the lifting device 5 moves the beam member 20 downward so that the tapered surface 16 formed on the end surface 17 of the bracket member 10 and the tapered surface 26 formed on the end surface 27 of the beam member 20 come into contact with each other. As a result, the deviation or error of the position of the beam member 20 in the longitudinal direction is corrected. That is, according to the above method, even if the horizontal position or orientation of the beam member 20 lifted near the predetermined position deviates from the predetermined position, the beam member with respect to the predetermined position of the structure 1 The carry-in work of 20 can be realized by using the lifting device. Therefore, it is possible to provide a method for carrying in a beam member that can efficiently carry in the beam member 20. Then, if such a method is used, the beam member 20 can be easily carried into a predetermined position of the structure 1 by the lifting device 5, so that it is a suitable method for carrying in the beam member for automatic construction. I can say.

Returning to FIG. 3, in some embodiments, in the method described in any of the above embodiments, the beam member 20 faces the first upper flange portion 23 having a longitudinal direction and the first upper flange portion 23. The first lower flange portion 24, which is arranged along the longitudinal direction and is shorter in the longitudinal direction than the first upper flange portion 23, and the first upper flange portion 23 and the first lower flange portion 24 are connected. The first web portion 25 may include a first web portion 25 formed in a trapezoidal shape having a lower side shorter than the upper side by forming tapered surfaces 26 at both ends in the longitudinal direction. That is, the beam member 20 may be formed based on the shape of so-called H steel.
In this case, as illustrated in FIG. 4, the bracket member 10 is arranged along the longitudinal direction so as to face the second upper flange portion 13 having the longitudinal direction and the second upper flange portion 13. 2 A second web portion 15 that connects a second lower flange portion 14 that is longer in the longitudinal direction than the upper flange portion 13 and a second upper flange portion 13 and a second lower flange portion 14 in the longitudinal direction. A second web portion 15 in which the lower side (lower end 15C) is formed longer than the upper side (upper end 15B) by forming the tapered surface 16 at one end 15A may be included. That is, the bracket member 10 may also be formed based on the shape of so-called H steel.
Then, the plate member 18 may be attached to the second web portion 15 of the bracket member 10.

According to the method of forming the bracket member 10 and the beam member 20 based on H steel in this way, in the plate mounting step S20, the plate member 18 is projected from the end surface 17 of the second web portion 15 of the bracket member 10. In the horizontal movement step S30, the first web portion 25 of the beam member 20 is attached to the plate member 18 attached to the second web portion 15 of the bracket member 10 from the other surface 12 side of the bracket member 10. Be abutted. Here, when the plate member 18 is provided on the beam member 20 side, the area that receives the wind during lifting by the lifting device 5 is larger than that when the plate member 18 is not attached, so that the carrying-in work can be performed. It cannot be said that there is a possibility of affecting it. On the other hand, by attaching the plate member 18 to the second web portion 15 of the bracket member 10 as in the above method, the influence of the wind on the beam member 20 lifted by the lifting device 5 can be suppressed, which is safe. Moreover, it is possible to provide a method for carrying in a beam member that can be efficiently realized.

In some embodiments, in the above method, for example, as illustrated in FIGS. 3A and 3B, the first upper flange portion 23 of the beam member 20 is from the upper side of the first web portion 25. May also include an upper extension portion 23A extending so as to project in the longitudinal direction. In this case, the second lower flange portion 14 of the bracket member 10 is longitudinally longer than the lower side (lower end 15C) of the second web portion 15 as illustrated in FIGS. 4 (A) and 4 (B), for example. The lower extension portion 14A extending so as to protrude may be included. Then, in the horizontal movement step S30, the lower surface 23A1 of the upper extending portion 23A comes into contact with a part of the upper end 15B of the second web portion 15, and a part of the lower end (lower side 25B) of the first web portion 25 is abutted. The beam member 20 may be moved downward so as to come into contact with the upper surface 14A1 of the lower extending portion 14A.

In this way, the upper extending portion 23A of the beam member 20 comes into contact with a part of the upper end 15B of the second web portion 15 of the bracket member 10, and a part of the lower side 25B of the first web portion 25 is formed. The bracket member 10 is placed on the bracket member 10 so as to abut on the upper surface 14A1 of the lower extension portion 14A of the bracket member 10. That is, since the beam member 20 can be lowered so that at least a part of the beam member 20 overlaps the bracket member 10 and is placed on the bracket member 10, the beam member 20 after the lowering can be made special. It can be stably supported by the bracket member 10 without requiring a member or a process. Therefore, it is possible to provide a method for carrying in a beam member that can efficiently carry in the beam member 20.

In some embodiments, in the method described in any one of the above embodiments, at least one of the beam member 20 and the structure 1 is, for example, as illustrated in FIGS. 3 (A) to 4 (B). , A guide rib 30 for locking the beam member 20 arranged at a predetermined position and the structure 1, including the guide rib 30 having side surfaces along the vertical direction, and in the vertical movement step S40, the beam member 20 is moved downward. At least the other of the beam member 20 and the structure 1 may be engaged with the guide rib 30 while being moved.

The guide rib 30 has a function of preventing the beam member 20 arranged at a predetermined position from shifting in the horizontal direction including at least a direction orthogonal to the longitudinal direction (width direction). That is, the guide rib 30 is provided at a position where the beam member 20 arranged at a predetermined position is arranged between the guide rib 30 and the plate member 18. In some embodiments, the guide ribs 30 provided on the beam member 20 are at least a distance greater than or equal to the thickness of the second web portion 15 on the bracket member 10 in a direction (width direction) orthogonal to the longitudinal direction of the beam member 20. It may be provided apart from the first web portion 25. Further, the guide ribs 30 provided on the bracket member 10 are provided at least by a distance equal to or greater than the thickness of the first web portion 25 of the beam member 20 in the direction (width direction) orthogonal to the longitudinal direction of the bracket member 10. Alternatively, it may be provided apart from the plate member 18.
The guide rib 30 sets the mating member so that the first web portion 25 and the second web portion 15 are arranged on the same plane when the beam member 20 is vertically lowered in the vertical movement step S40. It may have a tapered surface that can guide in the width direction. The tapered surface may be, for example, an inclined surface formed so that the height from the base end portion increases as the distance from the first web portion 25 or the second web portion 15 increases in the width direction.
The guide ribs 30 are variously convex with respect to the lower surface of the first upper flange portion 23 of the beam member 20 or the upper surface of the second lower flange portion 14 of the bracket member 10 or in the vertical direction. Can take the form of. For example, the guide rib 30 is provided along the vertical direction (vertical direction) as illustrated in FIGS. 3 (A), 3 (B), 4 (A), 4 (B), and 5 (C). It may have a shape including an L-shaped upright portion that extends and is refracted so as to intersect (or orthogonally) in a plan view. Alternatively, the guide rib 30 may have a flat plate shape extending along the vertical direction and arranged along the width direction (short direction) of the beam member 20 or the bracket member 10 (FIG. 10). (A) to FIG. 10 (D)). The guide rib 30 is connected to the flange portion of the beam member 20 or the bracket member 10 by fixing means such as welding or bolt connection.
Further, the guide rib 30 provided on the beam member 20 and the guide rib 30 provided on the bracket member 10 are opposite to each other with the web portions 15 and 25 interposed therebetween when the beam member 20 is arranged on the bracket member 10. It may be provided so as to be arranged in.

According to the method including at least one guide rib 30 of the beam member 20 and the structure 1 as described above, in the vertical movement step S40, the beam member 20 is moved downward by the lifting device 5 to cause the tapered surface 16 described above. In addition to the correction of the positional deviation in the longitudinal direction by 26, the beam member 20 and the structure 1 are locked via the guide rib 30. That is, the beam member 20 arranged at a predetermined position can be physically locked as a locking portion or a holding portion in addition to the frictional force on the contact surface between the beam member 20 and the bracket member 10. Therefore, the beam member 20 after being attached to the predetermined position of the structure 1 can be more reliably supported on the structure 1 as compared with the case where the guide rib 30 is not included. Therefore, the beam member arranged at the predetermined position can be supported. The stability of 20 can be improved. Therefore, it is possible to provide a method for carrying in a beam member that can efficiently carry in the beam member 20.

Subsequently, the method of carrying in the beam member according to the embodiment will be described in more detail.
FIG. 6 is a flowchart showing a method of carrying in the beam member according to the embodiment. 7A and 7B are schematic views showing a method of carrying in a beam member according to an embodiment. FIG. 7A shows a state in which the beam member is arranged near a predetermined position, and FIG. 7B shows one end of the beam member as a plate member of a structure. The abutted state, (C) shows the state where the beam member is lowered along the tapered surface, and (D) shows the state where the beam member is arranged at a predetermined position. 8A and 8B are schematic views showing a method of carrying in a beam member according to an embodiment. FIG. 8A shows a state in which one end of the beam member is in contact with a plate member of a structure, and FIG. 8B shows a tapered surface of the beam member. A state in which the beam member is lowered along the above, (C) indicates a state in which the beam member is arranged at a predetermined position.

In some embodiments, in the method described above, at least one bracket member 10 is joined to one end 20A side of the beam member 20 as illustrated, for example, in FIGS. 1, 5 and 6-8. The side bracket member 10A and the other end side bracket member 10B joined to the other end 20B side of the beam member 20 may be included. Then, in the horizontal movement step S30, one end 20A side of the beam member 20 is brought into contact with the plate member 18 attached to the one end side bracket member 10A (FIGS. 7A, 7B and 7B). 8 (A)) and by rotating the beam member 20 around one end 20A side of the beam member 20, the other end 20B side of the beam member 20 is attached to the plate member 18 attached to the other end side bracket member 10B. The abutting step S34 (see FIGS. 7 (B), 7 (C), 8 (A) and 8 (B)) may be included.

In step S32, the angle θ formed by the extending direction (longitudinal direction) of the beam member 20 with respect to the extending direction (longitudinal direction) of the one end side bracket member 10A or the other end side bracket member 10B is, for example, −10 ° ≦. One end 20A side of the beam member 20 may be brought into contact with the plate member 18 so as to satisfy θ ≦ 10 °. That is, in step S32, one end 20A side of the beam member 20 may be brought into contact with the plate member 18 of the one end side bracket member 10A within an angle range of ± 10 ° parallel to the predetermined position.

According to such a method, one end 20A side of the beam member 20 is brought into contact with the plate member 18 attached to the one end side bracket member 10A by the lifting device 5, and the one end 20A side of the beam member 20 is centered. By rotating the beam member 20, the other end 20B side of the beam member 20 comes into contact with the plate member 18 attached to the other end side bracket member 10B. In this way, the beam member 20 suspended in the vicinity of the predetermined position is brought into contact with the plate member 18 at one end 20A side and the other end 20B side, respectively, so that the beam member 20 is parallel to the predetermined position. The process of arranging can be realized with high accuracy.

Subsequently, a method of carrying in the beam member according to another embodiment of the present invention will be described.
FIG. 9 is a flowchart showing a method of carrying in a beam member according to another embodiment of the present invention. 10A and 10B are schematic views showing a method of carrying in the beam member according to another embodiment, where FIG. 10A is a front view of the beam member, FIG. 10B is a bottom view of the beam member, and FIG. 10C is a front view of the bracket member. B) is the same plan view.
As illustrated in FIGS. 9 and 10 (A) to 10 (B), the method of carrying in the beam member according to at least one embodiment of the present invention is when the beam member 20 is attached to a predetermined position of the structure 1. The method for carrying in the beam member used is different in that the plate member 18 is provided on the bracket member 10 in some of the above-described embodiments, whereas the plate member 18 is provided on the beam member 20. , Others are the same. Therefore, the same reference numerals are given to the elements common to some of the embodiments already described, and the description thereof will be omitted.

In the method of carrying in the beam member according to the other embodiment illustrated in FIG. 9, the structure 1 includes at least one bracket member 10 joined to the beam member 20, and the beam member 20 is one surface of the beam member 20. On the 21 side, a plate member 18 attached so as to project from the end surface 27 of the beam member 20 is included. Then, in the above method, the beam member 20 is lifted to the vicinity of a predetermined position by the lifting device 5, and the other surface 22 side of the beam member 20 is brought close to the bracket member 10 attached to the structure 1, and the beam member 20 is used. After the horizontal movement step S130 and the horizontal movement step S130 in which the plate member 18 is brought into contact with the bracket member 10 so as to be parallel to the predetermined position, the lifting device 5 is used to bring the plate member 18 to the end surface 17 of the bracket member 10. A vertical movement step S140 for moving the beam member 20 downward so as to bring the tapered surface 16 formed and the tapered surface 26 formed on the end surface 27 of the beam member 20 into contact with each other is provided.
In some embodiments, the beam member is carried in at least one of the bracket member mounting step S110 for mounting the bracket member 10 to the structure 1 or the plate mounting step S120 for mounting the plate member 18 to the beam member 20. You may also have more.

According to the method of providing the plate member 18 on the beam member 20 in this way, in the plate attachment step S120, the plate member 18 is attached to one surface 21 side of the beam member 20 so as to protrude from the end surface 27 of the beam member 20. In the horizontal movement step S130, the other surface 22 side of the beam member 20 is brought into close contact with the bracket member 10 attached to the structure 1 by the lifting device 5 in the horizontal direction of the beam member 20. Is corrected and placed parallel to a predetermined position. After that, the lifting device 5 moves the beam member 20 downward so that the tapered surface 16 formed on the end surface 17 of the bracket member 10 and the tapered surface 26 formed on the end surface 27 of the beam member 20 come into contact with each other. As a result, the deviation or error of the position of the beam member 20 in the longitudinal direction is corrected. That is, according to the method of the other embodiment described above, even if the horizontal position or orientation of the beam member 20 lifted in the vicinity of the predetermined position deviates from the predetermined position, the structure 1 The work of carrying in the beam member 20 with respect to the predetermined position can be realized by using the lifting device 5. Therefore, it is possible to provide a method for carrying in a beam member that can efficiently carry in the beam member 20. Then, if such a method is used, the beam member 20 can be easily carried into a predetermined position of the structure 1 by the lifting device 5, so that it is a suitable method for carrying in the beam member for automatic construction. I can say.

As described above, the beam member 20 according to at least one embodiment of the present invention is a beam member 20 attached to a predetermined position of the structure 1, and has a first upper flange portion 23 having a longitudinal direction and a first upper side. The first lower flange portion 24, which is arranged along the longitudinal direction so as to face the flange portion 23 and is shorter in the longitudinal direction than the first upper flange portion 23, the first upper flange portion 23, and the first lower flange portion. A first web portion 25 for connecting the portions 24, the first web portion 25 having a trapezoidal shape in which the lower side 25B is shorter than the upper side 25A by forming tapered surfaces 26 at both ends in the longitudinal direction. I have.
The first upper flange portion 23 includes an upper extending portion 23A extending so as to project in the longitudinal direction from the upper side 25A of the first web portion 25.

As described above, according to the configuration in which the beam member 20 includes the upper extending portion 23A, at least a part of the beam member 20 overlaps the bracket member 10 and is placed on the bracket member 10. Can be lowered, so that the lowered beam member 20 can be stably supported by the bracket member 10 without requiring a special member or process. Therefore, it is possible to provide the beam member 20 capable of efficiently carrying the beam member 20. Further, if such a beam member 20 is used, it can be easily carried into a predetermined position of the structure 1 by the lifting device 5, so that it can be said that the beam member 20 is suitable for automatic construction.

Further, as described above, the bracket member 10 according to at least one embodiment of the present invention is the bracket member 10 attached to the structure 1, and has a second upper flange portion 13 having a longitudinal direction and a second upper flange. A second lower flange portion 14, which is arranged along the longitudinal direction so as to face the portion 13 and is longer in the longitudinal direction than the second upper flange portion 13, and a second upper flange portion 13 and a second lower flange portion. A second web portion 15 connecting the 14 to the second web portion 15 having a tapered surface 16 formed at one end in the longitudinal direction so that the lower end 15C (lower side) is longer than the upper end 15B (upper side). , Is equipped.
The second lower flange portion 14 includes a lower extension portion 14A that extends in the longitudinal direction from the lower side (lower end 15C) of the second web portion 15.

As described above, according to the configuration in which the bracket member 10 includes the lower extension portion 14A, at least a part of the beam member 20 overlaps the lower extension portion 14A of the bracket member 10 and is placed on the bracket member 10. Since the beam member 20 can be lowered in such a manner, the lowered beam member 20 can be stably supported by the bracket member 10 without requiring a special member or process. Therefore, it is possible to provide the bracket member 10 capable of efficiently carrying the beam member 20. Further, if such a bracket member 10 is used, the beam member 20 can be easily carried into a predetermined position by the lifting device 5, so that it can be said that the bracket member 10 is suitable for automatic construction.

According to at least one embodiment of the present invention described above, it is possible to provide a method for carrying in a beam member capable of efficiently carrying in the beam member, and a beam member and a bracket member suitable for use in the method.

The present invention is not limited to the above-described embodiment, and includes a modified form of the above-described embodiment and a combination of these embodiments.

1 Structure 2 Beam 3 Pillar member 5 Lifting device 10 Bracket member 10A One end side bracket member (bracket member)
10B Other end side bracket member (bracket member)
11 One side 12 Other side 13 Second upper flange part 14 Second lower flange part 14A Lower extension part 14A1 Upper surface 15 Second web part 15A One end 15B Upper end (upper side)
15C lower end (lower side)
16 Tapered surface 17 End surface 18 Plate member 18A Splice plate (plate member)
20 Beam member 20A One end 20B One end 21 One side 22 Another side 23 First upper flange part 23A Upper extension part 23A1 Lower surface 24 First lower flange part 25 First web part 25A Upper side 25B Lower side (lower end)
26 Tapered surface 27 End surface 30 Guide rib

Claims (8)

It is a method of carrying in a beam member used when attaching a beam member to a predetermined position of a structure.
The structure includes at least one bracket member attached to the structure and joined to the beam member, and a plate member attached to one side of the bracket member so as to project from an end surface of the bracket member. ,
The lifting device lifts the beam member to the vicinity of the predetermined position and brings the beam member closer to the bracket member from the other surface side of the bracket member so that the beam member becomes parallel to the predetermined position. In the horizontal movement step of bringing the beam member into contact with the plate member,
After the horizontal movement step, the lifting device brings the beam member into contact with the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member. A vertical movement step that moves downward,
A method of carrying in a beam member provided with. The at least one bracket member includes one end side bracket member joined to one end side of the beam member and the other end side bracket member joined to the other end side of the beam member.
The horizontal movement step is
A step of bringing one end side of the beam member into contact with a plate member attached to the one end side bracket member,
Claim 1 includes a step of rotating the beam member around one end side of the beam member to bring the other end side of the beam member into contact with a plate member attached to the other end side bracket member. The method for carrying in the beam member described in 1. The beam member
The first upper flange portion having a longitudinal direction and
A first lower flange portion that is arranged along the longitudinal direction so as to face the first upper flange portion and is shorter in the longitudinal direction than the first upper flange portion.
A first web portion that connects the first upper flange portion and the first lower flange portion, and is formed in a trapezoidal shape in which the lower side is shorter than the upper side by forming the tapered surfaces at both ends in the longitudinal direction. Including the first web part and
The bracket member
The second upper flange portion having a longitudinal direction and
A second lower flange portion that is arranged along the longitudinal direction so as to face the second upper flange portion and is longer in the longitudinal direction than the second upper flange portion.
A second web portion that connects the second upper flange portion and the second lower flange portion, and the lower side is formed longer than the upper side by forming the tapered surface at one end in the longitudinal direction. Including 2 web parts
The method for carrying in a beam member according to claim 1 or 2, wherein the plate member is attached to the second web portion. The first upper flange portion of the beam member includes an upper extension portion extending in the longitudinal direction from the upper side of the first web portion.
The second lower flange portion of the bracket member includes a lower extension portion that extends in the longitudinal direction from the lower side of the second web portion.
In the horizontal movement step, the lower surface of the upper extension portion abuts on a part of the upper end of the second web portion, and a part of the lower end of the first web portion is the upper surface of the lower extension portion. The method for carrying in a beam member according to claim 3, wherein the beam member is moved downward so as to come into contact with the beam member. At least one of the beam member and the structure is a guide rib that locks the beam member and the structure arranged at a predetermined position, and includes a guide rib having side surfaces along the vertical direction.
The beam member according to any one of claims 1 to 4, wherein in the vertical movement step, at least the other of the beam member and the structure is engaged with the guide rib while moving the beam member downward. Carry-in method. It is a method of carrying in a beam member used when attaching a beam member to a predetermined position of a structure.
The structure includes at least one bracket member that is attached to the structure and joined to the beam member.
The beam member includes a plate member attached to one surface side of the beam member so as to project from an end surface of the beam member.
The lifting device lifts the beam member to the vicinity of the predetermined position, and brings the other surface side of the beam member closer to the bracket member so that the beam member is parallel to the predetermined position. A horizontal movement step of bringing the member into contact with the bracket member, and
After the horizontal movement step, the lifting device brings the beam member into contact with the tapered surface formed on the end surface of the bracket member and the tapered surface formed on the end surface of the beam member. A vertical movement step that moves downward,
A method of carrying in a beam member provided with. A beam member that is attached to a predetermined position in a structure.
The first upper flange portion having a longitudinal direction and
A first lower flange portion that is arranged along the longitudinal direction so as to face the first upper flange portion and is shorter in the longitudinal direction than the first upper flange portion.
A first web portion that connects the first upper flange portion and the first lower flange portion, and is formed in a trapezoidal shape in which the lower side is shorter than the upper side by forming the tapered surfaces at both ends in the longitudinal direction. With the first web part,
The first upper flange portion is a beam member including an upper extending portion extending so as to project in the longitudinal direction from the upper side of the first web portion. A bracket member that can be attached to a structure
The second upper flange portion having a longitudinal direction and
A second lower flange portion that is arranged along the longitudinal direction so as to face the second upper flange portion and is longer in the longitudinal direction than the second upper flange portion.
A second web portion that connects the second upper flange portion and the second lower flange portion, and the lower side is formed longer than the upper side by forming the tapered surface at one end in the longitudinal direction. With 2 web parts,
The second lower flange portion is a bracket member including a lower extending portion that extends in the longitudinal direction from the lower side of the second web portion.

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