JPH03107068A - Working floor device for construction application - Google Patents

Abstract

PURPOSE:To improve working efficiency and safety by coupling stretchably an upper and a lower working floors provided with various working equipment by a plurality of hydraulic jacks and placing a holding device on the working floor to have it sequentially elevated like a measuring worm. CONSTITUTION:An upper working floor 5 provided with a device for mounting steel beams, etc. and a lower working floor 3 provided with a device for placing concrete, etc. are coupled stretchably with a plurality of hydraulic jacks 6. A holding device 7 for fixing the working floors 3,5 to a steel beam 2 is mounted on each of the working floors 3,5. When attaching of the beam 2 on a first stage to a pillar 1 is completed, a hydraulic jack 6 is stretched to push up the upper working floor 5 and then the lower working floor 3 is pulled up to have them elevated sequentially. Thus, operation can be done efficiently and safely.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a construction work floor device for automating construction work in medium to high-rise buildings.

[Conventional technology]

Construction methods for mid-to-high-rise buildings can be roughly divided into the following steps: steel frame erection, reinforcing reinforcement, formwork assembly, concrete pouring, and formwork dismantling. During the steel frame erection work for columns and beams,
There is work such as transporting parts, temporary joining, rebuilding, and final joining. In these operations, first, a crane is used to transport the steel frame to a predetermined position, and each member is temporarily joined using temporary tightening bolts.Then, positioning in three axes is performed, distortion correction is performed, and the steel frame is welded or bolted. has finally been fixed.

These tasks in conventional steel frame construction are mostly manual work, with only the use of cranes to transport the steel frames and the use of a few jigs for joining.

[Problem to be solved by the invention]

As mentioned above, in the conventional steel frame erection work, which mainly involves manual work, it is essential for highly skilled craftsmen to work at heights, and this is one of the most important tasks among the various types of work carried out at construction sites. The level of danger is high and it is considered the number one dangerous work. Additionally, delays in construction time are becoming a problem due to a shortage of highly skilled workers and an aging population.

Furthermore, in concrete pouring work, in addition to the poor footing of deck plates and reinforcing bars, it is also necessary to handle heavy objects such as changing piping setups, so accidents such as falls, falling, and getting caught frequently occur. .

The present invention solves the above-mentioned problems, and eliminates manual work at high places during steel frame erection and concrete pouring work, improves work safety, and shortens the construction period. The object of the present invention is to provide a working floor device for construction work.

[Means to solve the problem]

To this end, the construction work floor device of the present invention comprises a lower work floor 3 and an upper work floor 5, which are connected by a plurality of hydraulic jacks 6 and configured to be vertically telescopic.
and a gripping device 7 disposed on the upper working floor 5 for grasping the steel beam 2, and a steel beam conveying device 10 movably disposed at the four corners of the upper working floor 5. .

Note that the numbers added to the above configurations are for comparison with the drawings to facilitate understanding, and the configurations of the present invention are not limited thereby.

[Effect]

In the present invention, for example, as shown in FIG.
After assembling the steel beams 2 between the steel columns 1 on the upper working floor 5 in steps (2) and (2), the hydraulic jack 6 is extended to lift the upper working floor 5 to the upper floor, and the steel beams 2 are assembled.

Next, in step (2), the upper working floor 5 is held by the gripping device 7.
At the same time, the grip H 7 of the lower work floor 3 is released, and the hydraulic jack 8 is retracted to lower the lower work floor 3.
Lift it up to the position of the steel beam 2 on the upper floor, and lower it to the lower work floor 3.
is fixed by the gripping device 7. Below, as shown in steps
The lower working floor 3 and the upper working floor 5 are raised alternately by
The steel frame 2 on the upper floor is being assembled one after another.

〔Example〕

Examples will be described below with reference to the drawings.

FIG. 1 is a process diagram showing one embodiment of a working floor device for construction work according to the present invention, and FIG. 2 is a plan view of a group of working floor devices.

In the figure, 1 is a steel column, 2 is a steel beam, the solid line shows the assembled steel beam, and the dotted line shows the steel beam before being assembled. 3
is the lower working floor, 5 is the upper working floor, 6 is the hydraulic jack, 7
indicates a gripping device.

The lower work floor 3 and the upper work floor 5 are equipped with a plurality of hydraulic jacks 6.
It is connected by , and is configured to be able to expand and contract up and down. As shown in FIG. 2, the lower working floor 3 and the upper working floor 5 are
A gripping device 7 for gripping the steel beam 2 is provided on its four sides. The gripping device 7 is extendable and retractable, and by extending the gripping device 7 and gripping the steel beam 2, the lower work floor 3 or the upper work floor 5 is fixed at that position. In the group of work floor devices shown in FIG. 2, the gripping devices 7 of the adjacent work floor devices 3 and 5 are provided in positions where they do not interfere with each other, so that the work floor devices 3 and 5 can be moved upward independently. It can be moved, and the assembly of the steel beams 2 can proceed in parallel at the same time.

Next, assembly of the steel beam 2 will be explained with reference to FIG.

First, in steps (2) and (2), the steel beam 2 is assembled between the steel columns 1 on the upper work floor 5, and then the hydraulic jack 6 is extended to lift the upper work floor 5 to the upper floor and the steel beam 2 is assembled. Next, in step (3), the upper working floor 5 is fixed to the steel beam 2 by the gripping device 7, and the lower working floor 3 is fixed to the steel beam 2 by the gripping device 7.
The gripping device 7 is released, the hydraulic jack 6 is retracted, the lower working floor 3 is lifted to the position of the steel beam 2 on the upper floor, and the lower working floor 3 is fixed by the gripping device 7. Below are the steps
As shown in ~■, while repeating the above operations, the lower working floor 3 and the upper working floor 5 are raised alternately by the hydraulic jack e, and the steel beams 2 of the upper floors are assembled one after another.

FIG. 3 is a perspective view of a steel frame conveying device for assembling the above-mentioned steel beams.

The steel beam transport device 10 is arranged at the four corners of the upper working floor 5, and includes a mast 11 that is rotated by a motor (not shown), a rotating table l2 fixed to the mast 11, and a rotating table l2 that is installed on the rotating table 12 and rotates within a vertical plane. It is composed of an arc-shaped swinging boom l3, a hanging boom 15 attached to the tip of the swinging boom l3, and a wire 16. The mast 11 is movable on the upper working floor 5 so that the steel beam 2 can be suspended wherever it is on the upper working floor 5.

To explain its effect, first, as shown in Figures (a) and (c), after fixing the wire l6 to both ends of the steel beam 2,
By rotating the swing boom 13 in a vertical plane,
(b) As shown in the figure, the steel beam 2 is lifted and the hanging center of the lifted steel beam 2 is aligned with the rotation center of the mast 11. Next, as shown in Figure (C), the mast l1 is rotated and the arc of the swing boom 13 bypasses both ends of the steel beam 2, and the steel beam 2 is moved toward the steel column 1, (d ) As shown in the figure, by rotating the swinging boom 13 in a vertical plane, the steel beam 2 is suspended and raised at a predetermined position, and the steel beam 2 is fixed between the steel columns 1.

Next, the concrete placing device 25 will be explained with reference to FIG.

A concrete piping box 2 is placed under the lower work floor 3.
6 is provided, and a concrete supply pipe 27 and a concrete branch pipe 29 are connected thereto.

One end of the concrete branch pipe 29 is connected to a concrete pipe box on another lower work floor, and the other end of the concrete branch pipe 29 is connected to a connection box 31 installed on a concrete pouring floor 30 at the bottom of the lower work floor 3. It is connected. This connection box 31 is formed to be rotatable, and a flexible concrete pipe 32 allows
Allows concrete to be poured.

It goes without saying that the present invention can be modified in various ways and is not limited to the above embodiments.

〔Effect of the invention〕

As is clear from the above description, according to the present invention, steel beam assembly and concrete placement work are automated, so productivity can be improved and the construction period can be shortened. Furthermore, since there is no need to work at heights, safety can be improved and accidents can be reduced.

Furthermore, since temporary structures such as scaffolding are not required, temporary construction costs can be reduced, and the construction period can be shortened by eliminating the number of days required for assembly and disassembly.

[Brief explanation of drawings]

Fig. 1 is a process diagram showing one embodiment of the construction work floor device according to the present invention, Fig. 2 is a plan view of the work floor device group, and Figs. 3 (a) to 3 (d) are steel frame FIG. 4 is a perspective view for explaining the configuration and operation of the beam conveying device, and FIG. 4 is a perspective view of the concrete placing device. 2... Steel beam, 3... Lower working floor, 5... Upper working floor, 6... Hydraulic jack, 7... Gripping device, 10
...Steel beam transportation! L25... Concrete placement equipment. Figure 2

Claims (2)

[Claims] (1) A lower working floor and an upper working floor connected by a plurality of hydraulic jacks and configured to be vertically expandable and retractable, and a gripping device disposed on these lower working floor and upper working floor for gripping a steel beam. A working floor device for construction work, comprising: a steel beam conveying device movably disposed at the four corners of the upper working floor. (2) The construction work floor device according to claim 1, wherein a concrete placing device is disposed below the lower work floor.