JPH06146599A - Girder setting tool - Google Patents

Abstract

PURPOSE:To set a girder by lengthening an interval between columns or the like for setting the girder, even when the interval is shorter than the girder. CONSTITUTION:A pin(13) to be inserted into the other side hole for jointing a girder is saliently set on a rotationally moving member(11) to be rotationally moved by an operating rod, and the contact section of a projection(14) or the like to be brought in contact with the end surface of the girder(4) in a state that the pin(13) is inserted, is kept to be set on. By moving the girder(4) rotationally with the operating rod(12) in a state that the contact section(14) is brought in contact with, the girder(4) is moved to the end surface side of the other side of the joint side.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for installing a beam, for example, for arranging the beam between columns to which the beam is joined.

[0002]

2. Description of the Related Art As described above, in order to install a beam between columns or the like and join them with bolts or the like, it is necessary to position a beam that has been lifted by a crane or the like between the columns.

FIG. 4 shows an example of a method of joining columns and beams. In the figure, (1) is a rectangular steel pipe column,
On the side surface of the column (1), a bracket (3) made of short H-shaped steel having a joining end plate (2) at its tip is provided in a protruding manner. On the other hand, (4) is a beam made of H-shaped steel joined to the bracket (3), and the end plate of the beam (4) has the same shape as the end plate (2) of the bracket (3). (5) is fixed, and the end plates (2) and (5) are overlapped with each other and joined by bolts (6), so that the tips of the beams (4) are joined in a butt shape.

[0004]

In order to join the beam ends to the brackets as described above, the bracket (3) on one end side of the beam (4) shown in the figure is used. Not installed between the other end side bracket. However, the distance between the brackets (3) may be shorter than the length of the beam (4) due to an error in mounting the pillars (1). In such a case, the distance between the pillars (1) should be reduced. It is necessary to forcefully expand it, but there was the inconvenience that it was impossible with ordinary human power.

As described above, the present invention is for installing a beam so that the beam can be installed by easily widening the interval even when the interval between columns for installing the beam is narrower than the beam. It provides tools.

[0006]

In order to solve the above-mentioned problems, the present invention provides an installation tool for joining the ends of a beam in a state in which the ends of the beams are butted against the end faces of the mating joints of the other party. And a pin to be inserted into a vertical hole on the mating side, and an abutting portion to the beam end face located laterally to the joint end face in a state where the pin is inserted into the hole. A rotating member and an operating rod for rotating the rotating member. The distance between the pin and the abutting portion is set so that the distance between the pin and the abutting portion changes with the rotation of the abutting portion around the pin. It is characterized in that the beam end face that is pushed and moved by the contact portion is sized to move slightly outward from the joint end face.

In the above, it is conceivable that the abutting portion is constituted by a protrusion protruding from the rotating member.

[0008]

[Operation] The pin is inserted into the hole of the mating joint, the abutting portion is brought into contact with the end face of the beam positioned to the side of the mating joint, and the operating rod rotates toward the abutting portion side. Then, the beam is relatively retracted by the lever principle, so that the beam end face can be moved to the joint end face side without difficulty. If the contact portion is a protrusion,
The beam can be moved to a more accurate position by bringing the contact portion into contact with the side surface of the beam.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 3 shows the whole installation tool of the present invention. In the figure, (11) is a belt-shaped rotating member,
One end of the operating rod (12) is fixed to the center of the upper surface of the rotating member (11). On the back surface of the rotating member (11), a pin (13) serving as a fulcrum of rotation is provided at one end thereof and a projection (14) serving as an abutting portion of the present invention is provided at the other end thereof. Has been done.

Next, the method of installing the beam using the above tool will be described with reference to FIGS. 1 and 2. First, as shown in FIG. 1, the brackets () are attached to the side surfaces of the pillar (1) at right angles to each other. 3) When (3) is protruding, use a bolt hole (15) on the upper surface of another bracket (3) in a direction perpendicular to the bracket (3) to which the beam (4) is to be joined (Fig. 4), and insert the pin (13) into the bolt hole (15) from the upper side. Next, the beam (4) is positioned on the side portion of the bracket (3) to be joined, and in this state, the projection (14) at the tip of the rotating member (11) is attached to the beam (4). ) Abut on the surface of the end plate (5) at the end. At this time, as shown in FIG. 1, the line L connecting the pin (13) and the protrusion (14) is the line O parallel to the bracket (3) on the joint side, and the protrusion (14) side is on the joint side. The bracket (3) is placed at a position inclined away from the bracket (3). Then, the distance R from the center of the pin (13) to the contact portion of the protrusion (14)
Is greater than the distance S from the center of the pin (13) to the end of the end plate (5) on the line O drawn from the center of the pin (13) in parallel with the protruding direction of the bracket (3) on the joining side. Therefore, when the rotation member (11) is rotated toward the joining side bracket (3) side with the pin (13) as a fulcrum in this state, the protrusions (14) will join together. Beam (4) is pushed in a direction away from the pin (13), and the joint surface of this end plate (5) is closer to the pillar (3) than the joint surface of the end plate (2) of the mating bracket (3). Even if it is on the 1) side, it will be moved to the end plate (2) joining surface side of the bracket (3) in such a retracted state.

After the beam (4) is moved to a certain position and the end plate (5) is brought into contact with the end plate (2) of the other party as described above, it is shown in FIG. So that the pin (13) of the rotating member (11)
Is inserted into the bolt hole (16) on the upper surface of the bracket (3) on the joining side (see FIG. 4), and the projection (14) which is the contact portion is brought into contact with the outer surface of the beam (4). Then, when using this pin (16) as a fulcrum to rotate in the direction of the arrow in the figure,
The projection (14) causes the beam (4) to slide horizontally as it is, and is moved to a position where the end plates (2) and (5) are aligned with each other.

[0012]

As described above, according to the present invention, the pin of the rotating member is inserted into, for example, the bolt hole or the like on the mating side, and the contact portion is brought into contact with the end face of the beam to rotate. By moving the beam, the beam can be retracted and moved to the mating surface side of the mating bracket or the like, so that it is possible to easily position the beam without taking time and effort to position the beam as in the conventional case. There is. Moreover, it is only necessary to insert the pin by using the bolt hole or the like and bring the abutting portion into contact with the beam, and the installation work of the tool itself is easy.

[Brief description of drawings]

FIG. 1 is a plan view showing a state before a beam is moved by installing the installation tool of the present invention.

FIG. 2 is a sectional view showing the installation position of the installation tool of the present invention,
It is a top view which shows the state before sliding a beam to a predetermined position.

FIG. 3 is a perspective view of the installation tool of the present invention.

FIG. 4 is an exploded perspective view of an essential part showing an example of a joint portion between a beam and a column.

[Explanation of symbols]

 (3) Joining bracket (4) Beam (11) Rotating member (12) Operating rod (13) Pin (14) Protrusion (contact part)

Claims (2)

[Claims] 1. An installation tool for joining an end portion of a beam in a state in which the end portion of the beam is abutted against an end surface of a joining portion of a mating member, and a pin to be inserted into a vertical hole on the mating partner side. , A rotating member having a contact portion to the beam end surface located on the side of the joint end surface with the pin inserted in the hole, and an operation for rotating the rotating member. The beam end face, which is made of a rod and is moved by being pushed by the contact portion with the rotation of the contact portion around the pin, is the distance between the pin and the contact portion. A beam installation tool characterized in that it is sized to move slightly outward. 2. The beam installation tool according to claim 1, wherein the abutting portion comprises a protrusion protruding from the rotating member.