JPH0516331Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a roof or floor structure, and more particularly to a roof or floor structure constructed by horizontally attaching lightweight aerated concrete panels to beams.

<Conventional technology> Conventionally, in order to lay lightweight aerated concrete panels (ALC panels) for roofs and floors, H-beam steel was used as beams, and joint reinforcing bars were installed to match the positions between the laid panels. A structure was used in which insertable mounting hardware was attached to the beam by welding.

<Problems to be solved by the invention> However, welding work is indispensable to attach the mounting hardware to the H-shaped steel beam, and therefore a power source and special technology are required for welding. There is a risk of fire, and if you attach the mounting hardware in advance to avoid such a risk, if the positions of the installed panels do not match the positions of the installed mounting hardware, the welding points of the mounting hardware may be damaged. It required removal and re-welding, which was complicated and costly, and had not been put to practical use.

On the other hand, the upper flange is formed by two angle steel members, the lower flange is also formed by two angle steel members,
In addition, a lattice beam is commonly used, in which a steel material bent in a zigzag shape is sandwiched as a web material and welded between two angle steel members forming the upper flange and between two angle steel members forming the lower flange. Also known as a lattice beam. This lattice beam is lighter than an H-shaped steel beam because the web material is made of steel and there is a gap, but on the other hand, there is a gap in the flange part for sandwiching the web material, so if you use a lattice beam, The mortar poured after laying panels for the floor and roof falls through the gaps between these beams. Therefore, lattice beams were not used as beams when laying concrete panels.

This invention fundamentally improves these shortcomings of conventional H-shaped steel beams and eliminates the shortcomings of lattice beams, and in particular, creates a new roof that does not require any welding work to attach mounting hardware. -Related to floor structure.

<Means for Solving the Problems> The gist of the roof/floor structure of the present invention is that the upper flange is formed of two angle steel members, the lower flange is also formed of two angle steel members, and the two angle steel members forming the upper flange are A lattice beam constructed by sandwiching and welding a zigzag-shaped steel material between two angle-shaped steel members and two angle-shaped steel members forming a lower flange is used as a beam material, and the upper surface of the lattice beam is Lightweight aerated concrete panels are laid horizontally, and the upper part is placed at the groove position created by sandwiching the web between the two angle steel members of the upper lattice beam and at the position between the laid panels. A mounting hardware having a hook is inserted, the upper part of the groove provided in the upper flange is filled with backup material, a joint reinforcing bar passing through the hook of the mounting hardware is passed between the panels, and a joint reinforcement between the panels is inserted. This roof/floor structure is characterized by having a structure in which mortar joints are formed in all gaps.

<Function> Since the roof/floor structure according to the present invention has the above-mentioned structure, the lattice beam is lighter than the H-shaped steel beam, yet can have a large bending strength, and the span of the beam can be reduced. In particular, since lightweight aerated concrete panels (ALC panels) are used as panels, the panels have the effect of being lightweight and have a small self-weight, and also have the effect of increasing the beam span.

In addition, during the construction process of the roof/floor structure of the present invention, the groove position created by sandwiching the web material between the two angle steel members of the upper lattice beam, and the position between the installed panels. position,
Insert the mounting hardware with the upper hook, pass the joint reinforcing bars passed between the panels through the hooks of the mounting hardware inserted into the lattice beam, and fill all the gaps between the panels with mortar to close the joints. Since the reinforcing bars and the mounting hardware are fixed to the beam, the conventional welding work of welding the mounting hardware to the beam can be completely eliminated.

Furthermore, since the gap created in the upper flange of the lattice beam is filled using mounting hardware and backup material, it is possible to prevent the mortar being poured from falling to the floor below.

<Example> An example of the roof/floor structure according to the present invention will be specifically described with reference to the drawings.

Fig. 1 is a diagram for explaining an embodiment of the roof/floor structure of the present invention, and Fig. 2 is a diagram for explaining an embodiment of the roof/floor structure of the present invention.
FIG. 3 is a diagram showing the floor structure viewed from the lower floor.

In these figures, a lattice beam 2 is used. This lattice beam 2 consists of two angle steel members 9, 9.
The upper flange is formed, and the lower flange is also formed of two angle steel members 9, 9, and between the two angle steel members 9, 9 forming the upper flange and between the two angle steel members 9, 9 forming the lower flange. A steel material 10 bent in a zigzag shape is sandwiched as a web material and welded together.

The zigzag-folded steel material 10 may be a zigzag-folded steel rod or a zigzag-folded steel strip.

Using the upper surface of the lattice beam 2 configured in this manner, a large number of lightweight aerated concrete panels (ALC panels) 1 are laid horizontally in parallel with each other.

A hook part 4 is provided at the upper part at the groove position created by sandwiching the web between the two angle steel members 9, 9 of the upper lattice beam and at a position corresponding to the position between the laid panels 1, 1. Then, a mounting hardware 6 having a hook-shaped bent portion 5 at the lower end is inserted, and then the upper portion of the groove remaining in the upper flange is filled with a back-up material 8 made of synthetic resin or the like.

The joint reinforcing bar 3 is passed through the hook portion 4 of the mounting hardware 6 and passed between the panels 1, 1. At this time, even if the position between the hook part 4 of the mounting hardware 6 and the panels 1 and 1 is misaligned, the mounting hardware 6 is attached to the lattice beam 2.
Since the back-up material 8 is only inserted into the groove of the lattice beam 2, the mounting hardware 6 can be freely slid along the groove of the lattice beam 2 to correct its position.

Further, the fitting 6 has a structure that hangs from the joint reinforcing bar 3, and the hook-shaped bent portion 5 of the fitting 6 catches on the beam 9 to prevent the joint reinforcing bar from lifting up from the panel 1.

Further, mortar is placed in all the gaps between the panels 1, 1 to form mortar joints 7.

The mortar joint 7 fixes the mounting hardware 6 in a predetermined position, and the mortar joint 7 also fixes the joint reinforcing bar 3 to the panel 1. At the same time, the mortar joints 7 connect the panels 1 to each other, and all the panels 1 formed on the lattice beams 2
can be integrated.

In this way, even if the mortar joints 7 are formed, the backup material 8 is present, so mortar can be prevented from falling to the lower floors.

The roof/floor structure of the present invention can be applied not only to buildings with reinforced concrete structures or steel frame structures, but also to wooden buildings where main members such as columns and peripheral beams are made of wood. The effects of the period can be mentioned.

<Effects of the invention> Since the roof/floor structure according to the invention has the structure and function described above, the lattice beam is lighter than the H-shaped steel beam, and yet can be expected to have a large bending strength. It is possible to achieve the effect of increasing the span of the beam. Especially lightweight aerated concrete panels (ALC) as panels
panel), the panel has the effect of being lightweight and has a small self-weight, and also has the excellent effect of increasing the beam span.

In this way, a floor structure or roof structure that takes advantage of the characteristics of lightweight aerated concrete panels, such as sound insulation, heat insulation, and durability, is constructed on long span beams, giving it a clean appearance when viewed from below. , it also has the effect of improving appearance.

Additionally, since the grooves that occur in the upper flanges of the lattice beams are filled using mounting materials and back-up materials, it is possible to prevent the mortar placed in these grooves from falling to the floor below. .

Furthermore, the roof/floor structure according to the present invention is installed at the groove position created by sandwiching the web between the two angle steel members of the upper lattice beam, and at the position between the installed panels. By inserting a mounting hardware with a hook part on the top into the position corresponding to the lattice beam, passing the joint reinforcing bars passed between the panels through the mounting hardware inserted into the lattice beam, and filling all the gaps between the panels with mortar. , it is possible to embed the joint reinforcing bars and the mounting hardware and eliminate the need for welding work to weld these joint reinforcing bars and the mounting hardware to the beam.

Therefore, the welding work required for conventional roof and floor structures is completely unnecessary, and as a result, wooden buildings can be constructed without the risk of fire and without the hassle of conventional wooden floor structures. It can be assembled and configured easily and reliably at construction sites, and has the feature of improving construction work efficiency.

[Brief explanation of the drawing]

FIG. 1 is a three-dimensional perspective explanatory view showing one embodiment of the roof/floor structure of the present invention, and FIG. 2 is a perspective view of the structure shown in FIG. 1 looking up from a lower floor. 1 is a lightweight aerated concrete panel, 2 is a lattice beam, 3 is a joint reinforcement, 4 is a hook part, 5 is a bent part, 6 is a mounting hardware, 7 is a mortar joint, 8 is a backup material, 9 is an angle steel material, 10 is It is made of steel.

Claims (1)

[Scope of utility model registration request] The upper flange is formed of two angle steel members, the lower flange is also formed of two angle steel members, and is bent in a zigzag shape between the two angle steel members forming the upper flange and between the two angle steel members forming the lower flange. A lattice beam constructed by sandwiching and welding steel materials as web materials is used as a beam material, and lightweight aerated concrete panels are laid horizontally using the top surface of the lattice beam to form two mountain shapes of the upper lattice beam. Inserting a mounting hardware having a hook portion at the top and a hook-shaped bent portion at the bottom at a groove position created by the steel sandwiching the web and at a position corresponding to the position between the laid panels, Fill the upper part of the groove provided in the upper flange with backup material, pass joint reinforcing bars that pass through the hook portion of the mounting hardware between the panels, and further form mortar joints in all gaps between the panels. A roof/floor structure characterized by being constructed with