JPS62148750A - Construction method and fittings of floor panel using deck plate - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for constructing a deck slab using a deck plate and a construction fitting, and particularly to an improved method or means for fixing a deck plate.

(Prior art and its problems) As is well known, as methods for constructing floor slabs for building structures, there are F decks, I decks, L decks, etc. in which concrete is placed on top of steel beams and used as formwork. A construction method that uses plate materials collectively known as deck plates has been widely adopted.

The construction method using deck plates involves installing deck plates between the flanges of steel beams that support the slab from below.
After the flange and deck plate were fixed by welding, reinforcement was placed on the deck plate, and concrete was poured to form the deck slab.

However, such conventional construction methods have the following drawbacks.

In other words, in the method of fixing the deck plate and the steel beam flange by welding, the joining involves high heat in a short period of time, and welding defects such as changes in the material and residual stress occur, so it is difficult to maintain stable high-temperature joints. It was difficult to ensure quality, and it was not a suitable method for fixing components of building structures, especially floor slabs.

In addition, welding requires equipment to be brought to a high location within the structure, which is relatively time consuming even for experienced welders, and poses safety concerns.

Furthermore, welding work was affected by the weather, which meant that construction progress could not be carried out as planned.

This invention was made in view of these conventional problems, and its purpose is to provide a deck plate that can be stably fixed with relatively simple work and that can be constructed regardless of the weather. The object of the present invention is to provide a method for constructing a floor slab and construction fittings.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a deck plate which is installed between the flanges of a steel beam.
A feature of the method invention is that the concrete is poured after the deck plate and the flange are clamped and fixed with a plurality of metal fittings in the construction method of forming a deck slab by pouring concrete 1- on top. The metal fitting used for this construction is a construction metal fitting that fixes the steel beam and the deck play 1- installed between the flanges thereof, and has a hook portion bent in an L shape that is latched to the lower surface of the flange. The device is characterized by comprising a main body portion provided at one end side, and a pressure bonding member coupled to the other end side of the main body portion to pinch the flange and the deck plate.

(Function) According to the construction method with the above configuration, the deck plate and the steel beam flange are mechanically clamped and fixed using the ramp-type metal fittings, so there is no deterioration of both the deck plate and the steel beam flange. Can be fixed securely.

Furthermore, the installation fitting is composed of two members that are connected to each other, and can be easily installed even at high places while remaining on a steel beam.

(Embodiments) Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 and 2 show a first embodiment of a method for constructing a deck slab using a deck plate and a construction fitting according to the present invention.

FIG. 1 shows one end of a deck plate 10 fixed with a construction metal fitting 12 on a pair of steel beams installed at a predetermined distance inside a building structure using the construction metal fitting of the present invention. ing.

The deck plate 10 has a pair of groove-shaped through holes 10a, 10a at positions that take into consideration the spacing between the steel beams, the length of the steel beam to be placed on the upper flange 14, and the size of the construction device 12. It is perforated.

As shown in detail in FIG. 2, the construction fitting 12 is composed of two members, a main body portion 16 and a pressure bonding member 18.

The main body portion 16 is made by punching a metal plate into a predetermined shape and then bending it, and has a substantially U-shaped cross section with a pair of wall portions 16b, 16b hanging down on both sides of a flat base portion 16a. At the lower ends of the wall portions 16b, 16b, hook portions 16C216C bent into an L-shape are provided in parallel at intervals, and each hook portion 16c is latched to the lower surface of the flange 14. .

In this embodiment, the crimp member 18 is composed of a butterfly bolt, and is coupled to one end side of the main body portion 16 by screwing it into a screw hole provided in the base portion 16a of the main body portion 16.

The connection structure between the crimping member 18 and the main body part 16 is such that six through holes are used instead of the screw holes in the main body part, nuts are fixed to the upper and lower surfaces of the through holes, and the crimping member 18 is screwed into these. Good too.

When constructing a deck slab, after installing the deck plate 10 between the flanges 14 of the steel beam, a 1ν hole is inserted from above the through hole 1Qa with the hook portion 16G of the construction fitting 12 facing toward the flange 14 side. , the hook portion 16C is brought into contact with the lower surface of the flange 14, the crimping member 18 is turned by hand and its tip is brought into contact with the upper surface of the deck plate 10, and the flange 14 and the deck plate are placed between the hook portion 16c and the crimp member 18. 10 and fix it.

Since the clamping with the construction metal fittings 12 is performed at multiple locations such as both sides and the center of the deck plate 10, the deck plate 10 has a corresponding number of through holes 10a, 1.
Set 0a.

After that, reinforcement is arranged on the deck plate 10 and concrete is poured to form a deck slab. In this case, since concrete leaks from the through hole 10a, the construction metal fitting 1
After installing 2, cover the area with tape.

When the deck slab is formed as described above, deck plate 1
0 and the flange 14 are mechanically fixed by the construction metal fittings 12, thereby preventing deterioration of these members.

In addition, if the necessary number of construction metal fittings 12 are temporarily fixed to the deck plate 10 with the crimping members 18 with the hook portions 16c inserted into the through holes 10a, it can be easily installed at high places while on a steel beam. Mounted on steel beams.

FIG. 3 shows a second embodiment of the construction metal fitting 12 used in the method of the present invention.

In this embodiment as well, the construction fitting 12 is composed of a main body portion 161 and a crimping member 181, and the main body portion 161 has a hook portion 161b bent into an L-shape at one end of a rod-shaped base 161a having a circular cross section. Flange 1 whose part is a steel beam
The other end of the base 161a is rolled into a flat plate shape, and has a square hole 161C through which a wedge plate used as the pressure bonding member 181 is inserted.

During construction, at predetermined locations on the deck plate 10,
A circular through hole 10b having a larger diameter than the base 161a of the construction fitting 12 is previously provided, and with the hook portion 161b locked on the lower surface of the flange 14 of the steel beam, the crimping member 181 is inserted into the square hole 161C from one side. By press-fitting, the deck plate 10 is clamped and fixed to the upper surface of the flange 14.

FIG. 4 shows the third part of the construction metal fitting 12 used in the method of the present invention.
An example of a real trip is shown.

The construction fitting 12 shown in the figure is composed of a main body portion 162 and a pressure bonding member 182. The main body portion 162 is formed by bending a flat metal plate, and is formed at one end of the flat base portion 162a and the base portion 162a. Hook part 1 bent into an L shape
62b, and a standing wall 1 formed upright at the other end of the base 182a.
62C, and a square hole 162d bored in the standing wall 162C.

On the other hand, the crimp member 182 has a cross-section shaped like an opening and is inclined along the longitudinal direction.

During construction, first, on the top surface of the flange 14 of the steel beam,
It is set so that the lower surface of the base 162a of the construction metal fitting 12 comes into contact with it, and the hook portion 162b covers the end surface of the flange 14 and comes into contact with the lower surface thereof.

Thereafter, the deck plate 10 is placed on the upper surface of the base 162a with one end of the deck plate 10 located near the vertical wall 162C of the construction metal fitting 12.

Then, while the lower surface of the pressure bonding member 182 is brought into contact with the upper surface of the deck plate 10, this is press-fitted into the square hole 162d.

As a result, the flange 14 of the steel beam and the deck plate 1
0 means that the base portion 162a is sandwiched and fixed;
After this, the floor slab is formed by the steps described above.

In the construction fitting 12 of this embodiment, there is no need to perform any processing on the deck plate 10, and moreover, the deck plate 10 does not require any processing.
The construction metal fittings 12 can be used as a guide for positioning when installing.

(Effects of the Invention) As explained in detail in the embodiments above, according to the construction method of the present invention, a deck plate and a flange of a steel beam are mechanically fixed with a plurality of metal fittings to form a deck slab. Unlike fixing by conventional welding means, damage to the deck plate and steel beams is eliminated, and the fixing can be done easily and reliably even by non-skilled workers, greatly improving workability.

In addition, the installation fitting of the present invention is composed of two parts, the main body and the crimping member, so it can be easily installed even at high places while on a steel beam, improving safety. Since there is no need for construction, the construction period can also be shortened.

[Brief explanation of drawings]

FIG. 1 shows an embodiment of the method of the present invention, and the same figure (△
) is a side sectional view of the main part of the deck plate fixed to the steel beam during the process, (B) is its plan view, (C) is its side view, and Figure 2 is the first implementation of the construction metal fittings. It is a perspective view showing an example. Figure 3 shows a state in which the deck plate and the steel beam are fixed using the construction metal fittings of the second embodiment. Figure (A) is a side cross-sectional view of the main part, and Figure (B) is its plane. figure,
The same figure (C) is the side view. Figure 4 shows a state in which the deck plate and the steel beam are fixed using the construction metal fittings of the third embodiment. Figure (A) is a side sectional view of the main part, and Figure (B) is its plane. FIG. 3C is a side view thereof. 10...Deck play 1-108...Through hole 12...Construction fittings 14...Flange 16...Body part 16a...
Base part 16b...Wall part 16C...Bending part 18...Crimping member 18a...Fixing head b...Port t-c...Natsuto patent application Person Obayashi Co., Ltd. Kumiyo Mr. Person
Patent Attorney - Kensuke Iro Figure 1 Figure 1 Figure 1 Italy 16c 16c Figure 3 (A) (B) (C)

Claims (2)

[Claims] (1) In a construction method in which a deck plate is installed between the flanges of a steel beam and concrete is poured onto the deck plate to form a deck slab, the deck plate and the flange are sandwiched between multiple metal fittings. A method for constructing a deck slab using a deck plate, characterized in that the concrete is poured after the concrete is fixed. (2) A construction metal fitting for fixing a steel beam and a deck plate installed between the flanges thereof, which has an L-shaped hook portion on one end that is latched to the bottom surface of the flange. A construction fitting for a floor slab using a deck plate, comprising a main body portion and a pressure bonding member coupled to the other end of the main body portion and compressing the flange and the deck plate.