JPS5921407B2 - Construction method and equipment for construction mesh reinforcement - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is a method for constructing mesh reinforcement for constructing a steel-framed reinforced concrete structure, in which reinforcement is mainly used for slabs, stretched between beam steel frames, and the construction method is directly applicable to the construction method. This invention relates to an erection device.

Currently, when constructing floor slabs in the construction of steel-framed reinforced concrete structures, deck plates or keystone plates are often used as waste forms and reinforcement is placed on top of them. This increases the construction cost, and it is also unreasonable and uneconomical, such as requiring several types or large amounts of spacers to ensure the reinforcement thickness, and requiring a large amount of labor and time to install them. It is.

The erection method and equipment according to the present invention focus on the above-mentioned points, and at the same time mainly restrain the mesh reinforcements on the beam steel frames and stretch them between the beam steel frames, thereby achieving a rational and economical method. The purpose of this project is to provide quality construction services.

Next, in carrying out the construction method according to the present invention, the configuration of the construction device will first be explained by way of an example. In FIG. It is a base substrate provided with la and Ia, and tightening bolts 1b and 1b are provided upwardly protruding from both left and right sides.

Reference numeral 2 denotes a holding plate formed in an inverted U shape and provided with lower pieces 2a, 2a for receiving the plate-shaped base substrate 1.
Lower pieces 2a, 2a to face the restraining notches 1a, 1a of
Inverted V-shaped restraining notches 2b, 2b are equally spaced at two locations.
and bolts 1b for tightening the base substrate 1 on both left and right sides of the upper surface.

Through holes 2c and 2c are provided through which 1b is inserted.

Numeral 3.3 is a nut for tightening the presser plate 2 by screwing into the tightening bolts 1b, 1b of the base substrate 1 when the presser plate 2 is mounted on the base substrate 1.

2 to 5 are perspective views showing other embodiments of the device of the present invention. In FIG. This is a form in which it is tightened with a tightening bolt 5.5 while it is mounted on the board 1.

Figure 3 shows the reverse combination of Figure 1, with base substrate 1
is formed into a U-shape, and on the other hand, the holding plate 2 is made into a flat plate, and the tightening bolts 6.6 on the base substrate 1 side are passed through the through holes 2c on the holding plate 2 side and tightened with nuts 7.7. .

FIG. 4 shows a base substrate 1 and a holding plate 2 formed into a U-shape and an inverted U-shape, the dimensions of which allow the outside width of one of the two to fit into the inside width of the other, and the two are tightened with bolts 8. It is tightened with nuts 9 and 9.

FIG. 5 shows another embodiment of the base substrate, in which an inverted triangular restraining notch hole 1a, 1a is provided in the center of the front surface.

Next, construction examples of the erection method according to the present invention are shown in Figures 6 to 1.
Figure 0 will be explained.

The base substrate 1 is fixed in advance by welding along the axis of the upper surface of the beam steel A (before or after assembly) at a predetermined pitch (the mounting pitch of the mesh reinforcement B).

After assembling the beam steel A, align the ends of the mesh reinforcements B at a predetermined pitch from the front and back, and insert the restraining notches 1a and I in the base substrate 1.
a, and immediately insert the holding plate 2 from above the base substrate 1 to remove the restraining notch 2 of this holding plate 2.
b, 2b press the mesh muscle B against the restraining notches 1a, 1a of the base substrate 1, and then tighten the nuts 3, 3 to restrain the front and rear mesh muscles B, B'.

After carrying out this work, the steel beams A and A' are constructed as shown in Figure 9.
...The mesh muscles B, B'... are stretched between them.

In this case, the scaffold board c is placed on the upper surface of the stretched mesh muscle.
, c'... can also be laid and used as a temporary passage.

Furthermore, slab formwork, D'...beam formwork E, E'...
In the assembled state, mesh reinforcements B, B', etc. are used as slab reinforcements (lower reinforcements) of the structure, upper reinforcement B1 is arranged, and concrete is poured.

In addition, the arrangement of the restraining notches formed in the base substrate and the holding plate in the construction apparatus according to the present invention is such that when the vicinity of each end of the mesh muscle is restrained individually, or when the vicinity of each end at a predetermined pitch is restrained simultaneously. (Although it may be installed in two or more places and restrained, depending on the workability, rationality,
It may be selected in consideration of reliability, economy, etc.

According to the construction method for constructing mesh reinforcement according to the present invention, which is carried out as described above, the ends of the mesh reinforcement are restrained and stretched between the beam steel frames, so the reinforcement work can be performed reliably and in accordance with the regulations. Alternatively, construction can be carried out rationally without requiring a large amount of spacers and without expending effort and time for this purpose.

Furthermore, compared to the conventional construction method in which deck plates and keystone plates are used as waste formwork, construction costs can be significantly reduced, and at the same time, the construction period can be shortened.

Furthermore, according to the equipment used in the construction method of the present invention, the mesh reinforcement is restrained by the restraining notch of the base substrate welded in advance on the beam steel frame and the restraining plate fitted from above. We can provide accurate and reliable construction.

Furthermore, simple tightening can be performed by hand, making it more efficient and providing other excellent effects.

[Brief explanation of the drawing]

The drawings show an embodiment of the construction method and construction equipment of the present invention, and FIG. 1 is an overall perspective view of the construction equipment, and FIGS.
The figure is a perspective view of another embodiment of the construction device, and FIGS. 6 to 10 are explanatory diagrams showing the construction method of the present invention. 1... Base board, 2... Holding plate, A.
...Beam steel frame, B, B'...Mesh reinforcement, c, c'...Scaffolding board, D, D'...
...Slab formwork, E, E'...Beam formwork.

Claims (1)

[Scope of Claims] 1. A base substrate fixed along an axis on a beam steel frame, in which one restraining notch is formed, and a restraining notch opposite to the restraining notch of the base substrate. A method for constructing mesh reinforcement for construction, characterized in that the end of the mesh reinforcement is restrained by the partner restraining notch by tightening with the formed presser plate, and the mesh reinforcement is stretched between beam steel frames. 2. The base substrate is composed of a base substrate in which at least one restraining notch is formed at the top or near the center of the vertical piece, and a holding plate in which a restraining notch is formed opposite to the restraining notch in the base substrate. A mesh for construction, characterized in that a tightening mechanism using tightening bolts and nuts for restraining the mesh muscles at the opposing restraining notches of the retaining plate is provided on either the base substrate or the retaining plate. Muscle erection device.