JPH0461943B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention relates to a self-rising horizontal scaffold for medium- and high-rise buildings.

``Problems to be solved by conventional technology and inventions'' Conventionally, in medium and high-rise buildings in urban areas,
External/internal scaffolding such as fixed horizontal scaffolding or skyhangers is used, but this type of scaffolding requires a huge amount of temporary materials, labor, lifting costs, etc., and is also dangerous when demolishing. There are drawbacks such as the danger of falling objects.

By the way, one of the building construction methods is a construction method using formwork that also serves as scaffolding (Japanese Patent Publication No. 13645/1983).
This construction method involves hanging a wire rope from the top of the steel structure after the steel frame has been erected, and suspending a formwork that also serves as a scaffold from the wire rope via a lifting machine.
The steel frame was finally tightened on each floor by moving from the bottom floor to the upper floor, and after the steel frame on the top floor was finally tightened, the floor slabs for the top floor were poured using the top of the formwork that also served as scaffolding. Thereafter, the concrete slabs for each floor are placed in the same way by lowering the concrete slabs one after another.

However, even when this formwork is used as a scaffold, the above-mentioned external scaffolding is ultimately required, and there is a restriction that concrete pouring must proceed from the top floor downwards, which causes inconvenience to the work procedure. be.

Therefore, the present invention aims to eliminate the above-mentioned various drawbacks by providing elevating means and falling object prevention means in dedicated external and internal scaffolds.

``Means for Solving the Problems'' The present invention provides an external working floor on the outside of the erected steel structure, and an internal working floor at various locations inside the erected steel structure. Rods are vertically provided corresponding to the respective working floors, each working floor is suspended from these rods so as to be able to be raised and lowered using a climbing jack, and each working floor is provided with means for preventing falling objects.

``Function'' Because of the above structure, the external and internal working floors are raised one after another from the lower floors to the upper floors using climbing jacks, and each floor is used for final tightening of the steel frame and other necessary work. . Falling objects from above during construction will be prevented by falling object prevention means installed on each work floor.

"Example" The drawings illustrate embodiments of the invention.

In the figure, 1 is a steel frame structure erected, and 2 is an automatically rising horizontal scaffolding according to the present invention used for the steel frame structure.

The steel structure 1 is constructed by erecting a large number of steel columns 11, large steel beams 12, and small steel beams 13.

The self-elevating horizontal scaffolding 2 has an external work floor 21 arranged around the outer periphery of the steel structure 1, and also has an external work floor 21 arranged at various locations inside the steel structure.
That is, a plurality of internal working floors 22 are arranged along the required steel girders 12, and these internal working floors are equipped with sliding working floors 23 that can be freely moved in and out at the ends of the steel frame structures. A plurality of rods 25 are hung vertically using fixing jigs 24 in correspondence with the working floors at the upper part, and climbing jacks 26 are attached to these rods to attach the external working floor 21 and the internal working floor 22. . . . It is suspended so as to be able to rise and fall freely, and falling object prevention means 27 are provided on the outer working floor 21 and the inner working floor 22 .

The external work floor 21, the internal work floor 22... and the slide work floor 23... each have the required handrails 21.
As shown in FIG.
... is fixed and attached to the yoke.

As shown in FIGS. 6 to 10, the sliding work floor 23... has frames 232... and handrails 231.
A plurality of rollers 233... and guide plates 234... are provided in the frame 2 of the internal work floor 22...
22... and the handrail 221... so as to be movable in and out. In the figure, 235 is a brace.

The falling object prevention means 27... is constructed by appropriately erecting a plurality of columns 212 on the back side of the external work floor 21, and protruding external falling object protection nets 271 (or sheets) inclined from the tips of these columns. Then, wrap this around the entire external work floor, and extend the external curing sheet 272 from the tip of the pillar to the area equivalent to the second floor.
(or a net) is installed vertically and runs around the entire external work floor. In addition, a plurality of columns 223 are erected on the back side of the internal working floors 22, and a flexible internal fallen object protection is provided between the columns of the internal working floors 22, 22 on the corresponding steel girders 12, 12. Net 273... (or sheet) is being stretched.

With the above configuration, the external working floor 21, internal working floor 22... and sliding working floor 23... can be raised sequentially from the lower floor to the upper floor by operating the climbing jacks 26...
At the same time, the falling object prevention means 27 can also be raised in conjunction with this. At this time, the internal fallen object curing nets 273... should be opened and closed when going over the steel beams 13..., and the sliding work floor 23...
When crossing the steel frame girder 12..., it may be pulled in once, and after crossing it, it may be advanced again.

As a result, steel frame tightening and other necessary work will be carried out on each floor.

After that, the installation of floor deck plates, floor reinforcement,
Concrete flooring and curtain wall installation will be carried out in sequence.

"Effects of the Invention" According to the present invention, the work can be carried out by sequentially moving the external working floor and the internal working floor, and therefore the horizontal scaffolding upwards, and a huge amount of temporary materials for the horizontal scaffolding can be used. There is no need for labor, lifting costs, etc., and it is possible to eliminate dangers during assembly and dangers from falling objects. In addition, concrete pouring can proceed upward from the lower floors, so there is no inconvenience in the work procedure, the construction period can be shortened, and costs can be reduced.

[Brief explanation of the drawing]

The drawings show embodiments of the present invention; FIG. 1 is a plan view, FIG. 2 is a front view, and FIG. 3 is a longitudinal side view.
Fig. 4 is an enlarged plan view of the main part, Fig. 5 is an enlarged side view of the main part, Fig. 6 is an enlarged plan view of the main part, and Fig. 7 is an enlarged plan view of the main part.
8 is a sectional view taken along the line of FIG. 7, and FIGS. 9 and 10 are further enlarged partial sectional views. 1...Steel frame structure, 2...Automatically rising horizontal scaffolding, 11...Steel frame column, 12...Steel frame girder, 13...
...Steel frame beam, 21...External work floor, 22...Internal work floor, 23...Sliding work floor, 24...Fixing jig, 25...Rod, 26...Climbing jack, 27...Falling Object prevention means, 271...
External falling object curing net, 272... External curing sheet, 273... Internal falling object curing net.

Claims (1)

[Claims] 1. Arrange external working floors on the outside of the erected steel structure, and internal working floors at various locations inside the erected steel structure, and hang rods corresponding to these working floors from appropriate places on the top of the steel structure. , an automatically rising type horizontal scaffold characterized in that each work floor is suspended from these rods using climbing jacks so that they can be raised and lowered freely, and each work floor is provided with means for preventing falling objects.