JPH06322979A - Casting of concrete slab for building - Google Patents

Abstract

PURPOSE:To make easy, correct and safe support possible for sleepers, rails and panels for concrete casting, and to save labor in removal of the sleepers, the rails and the panels for concrete casting after construction. CONSTITUTION:An H-steel, a piece of beam 3 or the like, is cut in specified length and divided into members including two L-shaped members 20a, two reinforcing rib members 20b and one bottom plate member 21a. Beam-clamps metal fittings 21 are made by welding L-steels to the bottom plate member 21a, and two sets of jack-jointing metal fittings 20 are made by welding the L-steels to the two L-shaped members 20a and the two reinforcing rib members 20b. Then, the jack-jointing metal fittings 20 are installed to a beam 3 with the beam-clamping metal fittings 21. And bases of jacks 23 are put into gaps of the jack-jointing metal fittings 20, and thereby the jacks 23 are installed to the beam 3. Sleepers 6, rails 8, panels 9 for concrete casting or the like are held with the jacks 23, and a concrete slab 11 is cast.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a concrete slab placing method for forming a floor in a reinforcing bar or steel frame structure.

[0002]

2. Description of the Related Art In a structure of a reinforcing bar or a steel frame, 2
As a method of placing a concrete slab for forming the first floor or the third floor, a method of placing a placing panel using a large pull, a crosspiece, etc., and placing a concrete slab on it are usually used. Was used. In this case, as a means to hold the large pull, crosspiece, driving panel, etc.
There is a means to support from the lower floor with a prop using a jack. By this means, it is easy to install the pillars, and it is also easy to remove the pillars after placing the concrete slab, but when the concrete slab is placed on the lower floor, there are pillars. It cannot be installed at the same time as other floors.

Therefore, when concrete slabs are simultaneously placed on the lower floor, as shown in FIG.
A means for attaching and supporting wooden columns on beam members erected between partition walls has been used. That is, FIG. 5 shows a conventional method, in which (a) is a front view and (b) is b- in FIG.
It is the side view seen from the b line. In the figure, 1 is a lower floor, 2 is a partition wall for partitioning between rooms, and 3 is a beam material installed between the partition walls 2 and is made of H-shaped steel. This H-section steel is used in a size suitable for the scale of the building. 4 is a large-pulled column, which is made of wood. The large pulling columns 4 are provided on both sides of the H-shaped steel beam member 3 at appropriate intervals, and are connected by horizontal connecting bar members 5 so as not to fall off. 6 is a large pull, and it is fixed to the large pull strut 4 by using a clasp 7. 8
Is a crosspiece supported by the pulling bar 6, 9 is a placing panel supported by the crosspiece 8, and 10 is a wedge for adjusting the placing panel 9 to a correct plane.
Reference numeral 11 is a concrete slab that has been placed.

[0004]

As described above, when the concrete slab is placed by supporting the large pull 6, the crosspiece 8 and the placing panel 9 by the large pull column 4, when the concrete slab is placed on the floor below. Can be installed at the same time.
However, it took a lot of time to attach the pulling support column 4 to the beam member 3. In particular, when the horizontal pulling bars 5 are used to connect the large pulling supports 4 and / or the clasps 7 are used to stop them, after the construction, the large pulling supports 4, the large pulling 6, the cross members 8, and the panel for placing are placed. It takes time to remove 9 pieces. If this curing is omitted, there is a problem that accurate and safe construction cannot be performed, such as the pulling support column 4 falling over or falling off as shown by a chain line.

The present invention has been made in order to solve such a problem, and it is easy to support the large pull 6, the crosspiece 8, and the panel 9 for placing, and after the construction, the large draw 6, the crosspiece 8, It is an object of the present invention to provide a concrete slab placing method that does not require much labor for removing the installation panel 9.

[0006]

In the concrete slab placing method according to the present invention, a scrap of the beam 3 or an H-section steel similar to the H-section steel used for the beam 3 is cut into a predetermined length, Divide into two L-shaped members, two reinforcing rib members and one bottom plate member. Next, of the members that have been divided and cut, the bottom plate member is welded with L-shaped steel to clamp the beam member, and the two L-shaped members and the two reinforcing rib members are welded with L-shaped steel to form two sets. Form the jack fitting. in this case,
The jack fitting is provided with a space to fit the base of the jack. Next, the jack fitting is attached to the beam member by the beam member sandwiching member. Attach the jack to the beam by inserting the jack base into the gap of the jack fitting. With this jack, a concrete slab is placed while holding a large pull, a crosspiece, a placing panel, and the like.

[0007]

According to the method of placing a concrete slab constructed as described above, a beam material holding metal fitting and a jack fitting metal fitting are manufactured by using an H-shaped steel scrap for a beam material. And, the jack fitting is detachably attached to the beam, and the jack base is fitted into the attached jack fitting to attach the jack to the beam. The concrete slab is placed while holding the panel for placing.

[0008]

【Example】

Example 1. 1 to 4 show an embodiment of the present invention. In the figure, 3 is a beam, 6 is a large drawing, 8 is a crosspiece, and 9 is a driving panel, which are the same as the conventional one shown in FIG. The beam member 3 is made of H-shaped steel and is installed between the partition walls 2 (not shown) in the same manner. 20 is a jack fitting, 2
Reference numeral 1 denotes a beam member holding metal fitting, which is formed as shown in FIGS. 3 and 4. First, the scrap material of the beam 3 or the beam 3
An H-section steel similar to the H-section steel used in Example 1 is cut into a length of about 12.5 cm, which is cut into pieces (cm), for example, as indicated by a chain line in FIG. That is, two L-shaped members 2
It is divided into 0a, two reinforcing rib members 20b and one bottom plate member 21a. Next, as shown in FIG. 3, among the divided members, the L-shaped steel 21b is welded to the bottom plate member 21a to form the beam member holding metal fitting 21 and the two L-shaped members 20.
L-shaped steel 20c is welded to a and two reinforcing rib members 20b to form two sets of jack fittings 20. in this case,
The jack fitting 20 is provided with a space 20d for fitting the base of the jack. The reinforcing rib member 20b is provided for reinforcement for mounting the jack fitting 20 on the beam member 3 and for peeling off the R portion inside the H-section steel. Also, 20e is a lock hole for preventing the jack 23 from falling off.

Next, as shown in FIGS. 1 and 2, the jack fitting 20 is fixed to the beam member 3 by the beam member clamping member 21.
Install on. 22 is a bolt for mounting. 23
Is a jack, and the space 20d of the jack fitting 20 is
It is attached to the beam 3 by fitting the base into the.
The jack 23 holds the large pull 6, the crosspiece 8, the driving panel 9 and the like, and drives the concrete slab 11 into it. The jacks 23 are attached to a plurality of places according to the scale of the building. Further, the concrete slab 11 may be an asphalt slab.

After the concrete slab 11 has been cast, the large pull 6, the crosspiece 8, the driving panel 9 and the like are removed. In this case, the jack 23 can be easily removed. After removing the jack 23, the jack fitting metal fitting 20 and the beam material holding metal fitting 21 are removed to complete the work.

[0011]

As described above, according to the present invention, a jack fitting metal fitting and a beam member holding metal fitting are manufactured by combining the H-shaped steel and the L-shaped steel which are divided and cut, and are attached to the beam material to mount the jack. I installed it and held a large pull, a crosspiece, a panel for placing, etc. so that I could place a concrete slab,
The large pull 6, the crosspiece 8, and the panel 9 for placing are easily supported, and the construction is accurate and safe. Further, a concrete slab placing method having high practicality can be obtained such that the work of removing the pulling bar 6, the crosspieces 8 and the placing panel 9 after the construction is not troublesome.

[Brief description of drawings]

FIG. 1 is a side view showing a partial cross section of an embodiment of the present invention.

FIG. 2 is a front view showing an embodiment of the present invention.

FIG. 3 is a perspective view showing a jack fitting fitting and a beam member holding fitting according to an embodiment of the present invention.

FIG. 4 is a working diagram of an H-shaped steel for manufacturing the jack fitting and the beam holding fixture according to the embodiment of the present invention.

FIG. 5 shows a conventional method, (a) is a front view,
(B) is a side view seen from the line bb of FIG.

[Explanation of symbols]

 3 Beam material 6 Large pulling 8 Bar material 9 Placing panel 11 Concrete slab 20 Jack fitting metal fitting 20a L-shaped member 20b Reinforcing rib member 21 Beam material holding metal fitting 21a Bottom plate member 23 Jack

Claims (1)

[Claims] 1. A beam material made of H-shaped steel is erected between opposing partition walls, and a concrete slab is driven by the beam material while holding a large pull, a crosspiece, a driving panel, and the like. In this case, an H-shaped steel having a predetermined length is cut into two L-shaped members, two reinforcing rib members and one bottom plate member, and the two L-shaped members and two reinforcing ribs are cut. L-shaped steel is combined with the member to form two sets of jack fittings, and one bottom plate member is combined with the L-shaped steel to form the beam-holding bracket.
The jack fitting is attached to the beam by the beam holding metal fitting, and the jack is attached to the beam by fitting the base of the jack into the fitted jack fitting.
A concrete slab pouring method for a structure in which the jack is used to hold a large pull, a crosspiece, a pouring panel, and the like for pouring a concrete slab.