JPH0617544A - Automatic beam reinforcement device under the load of temporary machinery - Google Patents

Abstract

(57) [Summary] [Purpose] Automates beam reinforcement work to improve safety and eliminate troublesome work. [Structure] A plurality of first support members 10 having an expansion / contraction mechanism and a swivel mechanism are suspended below a folding frame 5, and one end of a horizontal and expandable second support member 20 is fixedly mounted on the swivel mechanism. At the other end, a stretchable third support member 30 is vertically attached, and the load of the temporary machine is set to the first to third support members 10.
~ 30 to support the upper and lower beams of the building in a distributed manner, when the base pillar rises, the folding base 5 is contracted, the third support member 30 is swung inward by the second support member 20, and the gap between the beams is increased. Rise through.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic beam reinforcing device for receiving a load of a temporary machine when installing a temporary machine such as a tower crane in a construction work such as a building.

[0002]

2. Description of the Related Art When the load of a temporary machine that a beam receives is greater than the design load that the beam receives as a beam of a main construction, that is, a beam of a building, the beam is bent. Therefore, it is necessary to reinforce, and for this reinforcement, a large jack is manually installed between the upper and lower beams.

[0003]

Generally, a beam which requires reinforcement is generally not installed on the floor, and the work for mounting the jack is a dangerous work at a high place.

Further, since a large jack is considerably heavy,
Its installation is a painful task.

The present invention has been made in view of the above problems, and provides an automatic beam reinforcing device for a beam which is subjected to a load of a temporary machine which automates the beam reinforcing work, improves safety and eliminates troublesome work. It is provided.

[0006]

According to the present invention, a plurality of first suspension units having a retractable mechanism and a swing mechanism suspended from the lower surface of a collapsible folding base for supporting a base pillar of a temporary machine on a beam of a building are provided. A support member, and a horizontal second support member having one end fixed to the swivel mechanism of the first support member and provided with a telescopic mechanism,
A third support member fixed vertically to the other end of the second support member and provided with a telescopic mechanism and a length fixing mechanism is provided.

The operation of each of the above mechanisms and the climbing device of the temporary machine is automatically operated by the control device.

[0008]

In the automatic beam beam reinforcing device for receiving the load of the temporary machine configured as described above, when the temporary machine is supported by the climbing device when the temporary machine is raised, the folding frame is reduced and the third support material is used. Is contracted and the third support material is swung by the second support material to a position to be inserted between the beams. In this state, raise the temporary machine,
The ascending is stopped at the position where the lower surface of the folding frame is slightly above the predetermined beam. Therefore, expanding the folding frame,
The support material is expanded and contracted, and the third support material is swung by the second support material to be positioned between the upper and lower beams, and then extended and fixed. Next, after releasing the support of the temporary machine by the climbing device, the first support member is contracted, and the folding frame is lowered onto the upper beam. These operations are automatically operated by the control device.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, an automatic reinforcing device generally designated by A is a folding base 5 attached to a base pillar of a temporary machine, that is, a lower end surface of a tower crane post 1.
A plurality of (four in the illustrated example, equidistantly arranged circumferentially) first support members 10 suspended on the lower surface of the pedestal 5, and second support members 20 rotatably attached to the first support members 10.
And a third support member 30 vertically attached to the end of the second support member 20.

The folding stand 5 has a height H between the beams, and a rectangular base member 6 which can pass through a gap C between adjacent beams of the lower beams 2 and 3 and four corners of the base member 6. And a leg member 8 pivotally attached to the shaft 7.
2 is a position where the pedestal 5 as shown in FIG. 2 is supported on the upper surface of the upper beam 2 by a motor not shown, and the pedestal 5 as shown in FIG.
Is rotated in a range of 45 degrees in the example shown in the figure between a position where can pass through the gap C.

The first support member 10 is composed of a hydraulic jack 11 which is a telescoping machine as a whole, and a jack 11 has a swivel mechanism (not shown).

One end of the second support member 20 is fixed to the swivel mechanism, and the second support member 20 is composed of a hydraulic jack 21 which is a telescopic mechanism as a whole.

The third support member 30 is fixed to the other end of the second support member 20, and is constituted by a rod fixing hydraulic jack 31 which is an expansion and contraction mechanism having a length fixing mechanism as a whole.

1 and 2, the third support member 30 is extended to extend the upper and lower beams 2 and 3 in a state in which the post 1 is supported by the folding frame 5 as shown in FIGS. Tension between the upper and lower beams 2,
3 are distributed and supported at a total of 8 places. Therefore, each of the beams 2 and 3 receives a load that is half the load when the post 1 is supported only by the upper beam 2, and is contained within the design load.

The leg drive motor of the folding frame 5, a solenoid valve (not shown) for supplying / discharging hydraulic oil to / from each jack 11, 21, 31 and a climbing device (not shown) of the post 1 are connected to a control device (not shown). Each is connected.

Next, a mode of climbing the post 1 will be described. When climbing the post 1 from the state of being supported by the upper and lower beams 2 and 3 as shown in FIGS. 1 and 2, first, the post 1 is supported by a climbing device. Next, the leg member 8 of the folding frame 5 is rotated to the position shown in FIG.
The third support member 30 is contracted so that the upper and lower beams 2 and 3 are free. Then, through the second support material 20, the third
The support material 30 is swung to the position shown in FIG. In this state, the automatic reinforcement device A together with the post 1 is placed on the upper and lower beams 2, 3
The gap C between them is passed through and raised. And the pedestal 5
When the lower surface of the post reaches a certain height h from the upper surface of the predetermined upper beam 2A, the ascent of the post 1 is stopped. Therefore, the legs 8 of the folding frame 5 are opened to the state shown in FIG.
The support material 10 and the second support material 20 are expanded and contracted, and the third support material 30 is swung to the position of FIG. 1 via the second support material 20. Then, the third support member 30 is stretched and stretched between the upper and lower beams 2A and 3A, and then the first support member 30 is stretched.
The support material 10 is contracted, and the post 1 is mounted on the upper beam 2A by the pedestal 5 via the leg material 8. The operations of these climbing devices and the respective support members 10 to 30 are automatically operated by the control device.

[0018]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, it is possible to automate the reinforcing work of the beam and suppress the load received by the beam below the design load to improve safety and eliminate troublesome work. You can

[Brief description of drawings]

FIG. 1 is a side view showing a tower crane post according to an embodiment of the present invention supported on a beam.

FIG. 2 is a top view of FIG.

FIG. 3 is a side view showing a state in which the tower crane post is raised to a predetermined position.

FIG. 4 is a top view of FIG.

[Explanation of symbols]

 A ... Automatic reinforcement device C ... Gap between beams H ... Height between beams 1 ... Tower crane post 2, 2A ... Upper beam 3, 3A ... Lower beam 5 ... Folding Frame 6 ... Base material 7 ... Shaft 8 ... Leg material 10 ... First support material 11 ... Hydraulic jack 20 ... Second support material 21 ... Hydraulic jack 30 ... Third support material 31: Hydraulic jack with fixed rod

Claims (1)

[Claims] 1. A plurality of first support members suspended from the lower surface of a collapsible folding base for supporting a base pillar of a temporary machine to a beam of a building, the first support members having an expansion mechanism and a rotation mechanism, and the first support members. A horizontal second support member having one end fixed to the swivel mechanism and provided with an expansion and contraction mechanism; and a third support member vertically fixed to the other end of the second support member and provided with an expansion and contraction mechanism and a length fixing mechanism. An automatic beam reinforcement device that receives the load of a temporary machine, characterized by being provided with.