JP2570556B2 - Temporary use method of disposal formwork - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to a temporary use method of a disposal form in which a deck plate or a fab deck used as a so-called disposal form, which is left as it is as a part of a floor slab structure, is used as a temporary floor in a building having a C structure. .

[0002]

2. Description of the Related Art Generally, a floor slab having an S structure or an SRC structure is constructed by laying a deck plate, a fab deck or the like as a floor form, and casting concrete on the floor form. Often configured.

[0003] By the way, when constructing an S-structure or an SRC-structure frame, it is necessary to provide a temporary scaffold as a work scaffold for tightening or welding bolts. Not only inevitably lengthen the construction period due to the labor and time required, but also because a lot of temporary materials are required in addition to the main construction, it is easy to be troublesome and the temporary costs are considerably increased. there were.

The present invention has been made in order to solve the above-mentioned conventional problems, and provides a method of temporarily using a discarded formwork capable of greatly shortening the construction period and significantly reducing the cost of temporary construction work. The purpose is to provide.

[0005]

According to the present invention, there is provided a method for temporarily utilizing a discarding formwork, comprising: a deck plate or a fab deck which is laid on a steel beam as a discarding form of a concrete floor slab; The deck plate or fab deck laid in the section is used as a work scaffold by suspending it on a steel beam on the immediately above floor, and the deck plate or fab deck laid in the center of the floor slab is fixed on a steel beam as a cross scaffold. When the work on the work scaffold is completed, the deck plate or the fab deck used as the work scaffold is lowered onto a steel beam just below and fixed, and thereafter, the deck plate at the center and both ends of the floor slab is used. Alternatively, the fab deck is discarded and concrete is cast on it.

[0006]

1 and 2 show an embodiment of a temporary use method of a throwaway formwork according to the present invention.
Is a steel beam of a steel frame, 2 is a steel beam erected between the steel columns 1, 1, 3 is a deck plate or a fab deck laid on the steel beam 2 as a discarded formwork, and reference numeral 4 is Numerals 5 and 5 denote hanging members such as clamps and chains for hanging the deck plate or the fab deck 3 as a temporary scaffold on the steel beam 2 just above the steel beam 2 before being laid on the steel beam 2 as a discarding formwork. Reference numeral 6 denotes a deck plate or fab deck laid on the steel beam 2 to be used as a crossing scaffold before casting concrete as a dumping formwork, and reference numeral 7 denotes this deck plate or fab deck. Railings attached to both sides of 3 and 6. In addition, the fab deck is configured by attaching a steel plate 9 as a discarded formwork below the reinforcing reinforcing bar 8 for floors arranged in a truss structure (see FIG. 3).

Next, the construction method will be described step by step.

First, in order to construct a steel frame, a steel column 1 is erected, and a steel beam 2 is erected between the steel columns 1.

Next, a deck plate or fab deck 3 laid on both ends of the floor slab is clamped by a clamp 4.
The suspension member 5 suspends the steel frame 2 on the floor directly above the floor from the steel beam 2 in the middle suspension state in a suspended state, and forms a temporary scaffold and a fall protection net for performing various operations such as tightening and welding bolts of the steel frame assembly. The deck plate or fab deck 6 laid in the center of the floor slab is fixed on the steel beam 2 as it is, and is used as a crossing scaffold.

[0010] Further, handrails 7 are attached to both sides of the deck plate or the fab decks 3 and 6, and a safety net 10 is provided between the deck plates or the fab decks 3 to ensure the safety of work.

Next, when all the operations such as tightening and welding of the bolts of the steel frame are completed, the deck plate or the fab deck 3 is horizontally placed on the steel beam 2 directly below using an electric winch (not shown). And fix it in that position to form a discard form for the floor slab. Also, the deck plate or the handrails 7 on both sides of the fab decks 3 and 6 are removed.

Finally, concrete (not shown) is cast on the deck plates or the fab decks 3 and 6 to form a floor slab.

[0013]

As described above, according to the temporary use method of the waste formwork according to the present invention, the deck plate or the fab deck originally laid as the waste formwork of the floor slab is temporarily laid before being laid. Since it is used as a scaffold and a crossover scaffold, all temporary materials required for a temporary scaffold and a crossover scaffold can be omitted altogether, so that the construction period can be significantly reduced and the temporary construction cost can be significantly reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a steel frame showing an embodiment of a temporary use method of a disposal formwork according to the present invention.

FIG. 2 is a sectional view of a steel frame assembly.

FIG. 3 is a partial sectional view of a fab deck.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Steel pillar, 2 ... Steel beam, 3 ... Deck plate or fab deck, 4 ... Clamp, 5 ... Hanging member, 6 ... Deck plate or fab deck, 7 ... Handrail, 8 ...
Reinforcing reinforcement for floor, 9 ... steel plate, 10 ... safety net.

Claims (1)

(57) [Claims] 1. A deck plate or fab deck laid on a steel beam as a discard form for a concrete floor slab in a structure having an S structure or an SRC structure, the deck plate being laid on both ends of a floor slab. Alternatively, the fab deck is used as a work scaffold by suspending it on a steel beam on the immediately above floor, and a deck plate or fab deck laid in the center of the floor slab is fixed on a steel beam and used as a cross scaffold. After completion of the work, the deck plate or fab deck used as a work scaffold is lowered onto a steel beam directly below and fixed, and then, the deck plate or fab deck at the center and both ends of the floor slab is discarded. A temporary construction method of a throwaway formwork, in which concrete is cast as a frame.