JP2810450B2 - Floor joint structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial application field> The present invention relates to a joint structure of a floor for the purpose of preventing sound transmitted through a floor.

<Prior Art> Conventionally, joints formed between floor panels are generally filled with mortar.

FIG. 5 shows a conventional example, in which floor panels 2 and 3 are juxtaposed on a beam 1 while maintaining a predetermined joint gap, and a mortar 4 is filled in the joint gap.
Was composed. In the figure, reference numerals 6 and 7 denote wall materials standing on the floor panels 2 and 3 at predetermined intervals, respectively, and the mortar joints 5 are arranged almost in the middle of both the wall materials 6 and 7. .

<Problems to be Solved by the Invention> However, the mortar joints 5 formed by filling the mortar as described above can be connected to the left and right floor panels 2 and 3 arranged in parallel. When an external force acts on the floor panel 3, the floor panels 2 and 3 can be prevented from being laterally displaced. However, since the joints of the floor panels are filled with mortar 4, There is a problem that the mortar joint 5 becomes a sound propagation path (sound bridge) on the floors of the left and right spaces formed by the wall materials 6 and 7.

Therefore, even if the sound insulation performance of only the walls is improved by improving the sound insulation performance of only the walls, it is difficult to significantly improve the sound insulation performance between rooms because there is solid-borne sound from the floor. There was a problem.

FIG. 5 is an explanatory view showing a state in which the air noise or excessive vibration generated in the right room R is transmitted to the left room L via the floor panels 2 and 3 and the joint 5.

Further, as disclosed in, for example, Japanese Utility Model Application Laid-Open No. 60-72808, a technique for improving the sound insulation and water tightness of a concrete floor by filling a rubber plate in a joint formed between the concrete floor members arranged side by side is also known. It is known.

However, since the rubber material has no internal space, it has a performance of directly transmitting vibration, and therefore, there is a problem that this technique cannot improve sound insulation as much as expected.

That is, in general, it is possible to compress and insert a rubber material into a gap by using its elasticity, or to selectively attenuate the frequency of sound / vibration characteristics by the hardness and compression ratio of the rubber material. The extent and area are small.

Therefore, rubber material is effective when the frequency range is fixed, such as mechanical vibration, but its soundproofing effect can be expected when the factors of vibration cannot be limited due to complexity such as noise in a residential environment. There was no problem.

The joint structure of a floor according to the present invention relates to a completely new technique developed in view of the above-mentioned problems.

<Means for Solving the Problems> The present invention is a technology which fundamentally improves the above-mentioned various problems described above, and its gist is a joint under a wall formed between floor panels. In the joints, solid glass wool or hard rock wool having a large space inside is filled, or a point or line contact member is inserted to transmit the solid-borne sound to the adjacent floor panel Is prevented.

<Operation> As described above, the joint structure according to the present invention is filled with hard glass wool or hard rock wool having a large space inside, or a point or line contact member is inserted into the joint. Sound such as vibration generated on the floor panel is insulated at this joint, so that the sound of the adjacent room can be prevented from being transmitted to the other floor panel through the joint.

<Embodiment> One embodiment of the joint structure according to the present invention will be specifically described with reference to the drawings. FIGS. 1 to 3 are cross-sectional explanatory views of the joint structure according to the present invention, and FIG. FIG. 2 shows a joint structure in which a steel pipe is inserted, and FIG. 3 shows a joint structure in which a steel bent is inserted. FIG. 4 is a graph explanatory diagram comparing sound insulation performance between a joint using a conventional mortar and a joint filled with the insulating material of the present invention.

In FIG. 1, reference numerals 2 and 3 denote floor panels formed of ALC plates, respectively, which are arranged side by side on the upper surface of the beam 1 with a predetermined joint gap in the same manner as in the conventional example. Reference numeral 8 denotes a hard glass wool having a high insulating property and having a large space inside, and is filled in the joint gap and a fiber joint 9 is provided.
Is formed. Reference numerals 6 and 7 denote wall materials, which are erected on the left and right floor panels 2 and 3 with a predetermined gap around the fiber joint 9.

In the above embodiment, the hard glass wool 8 was filled in the joint gap, but instead of the hard glass wool 8,
Similarly, it is also possible to configure the fiber joint 9 using hard rock wool which has a large space inside.

In FIG. 2, reference numeral 10 denotes a steel pipe having a predetermined outer diameter, which is inserted into the bottom of the joint between the floor panels 2 and 3 arranged on the beam 1 and has a hollow upper part. Embedded hollow joint 11
Is formed.

Further, in FIG. 3, reference numeral 12 denotes a steel bent, which is embedded almost in the joint space between the floor panels 2 and 3 arranged in parallel on the beam 1 in an inverted U-shape and has a hollow portion therein. Is formed to form a curved joint embedding hollow joint 13.

The bent steel part 12 is wider at the upper part than at the lower part, so that only the upper part is in line contact with the side surfaces of the floor panels 2 and 3.

Therefore, both the hollow joints 11 for embedding steel pipes shown in FIG. 2 and the hollow joints 13 for embedding bents shown in FIG. 3 can leave most of the joints in space.

Each of the steel pipe embedded hollow joints 11 and the bent object embedded hollow joints 13 in the above embodiment is configured such that the steel pipe 10 or the bent steel object 12 is in line contact with the side surfaces of the floor panels 2 and 3. By providing a projection or the like on the outer surface of the bent steel 10 or steel 12, it is also possible to make a point contact via the projection or the like.

Since the fiber joints 9 in the above embodiment are filled with a fiber material such as hard glass wool which can have a large space in the joint gap, sound vibration is transmitted between the floor panels 2 and 3 through the joints. This can prevent solid-borne noise from being transmitted to adjacent floor panels.

Further, in each of the steel pipe embedded hollow joints 11 and the bent embedded joints 13 in the above embodiment, the steel pipe 10 or the bent steel 12 is inserted into the joint gap, and the floor panels 2 and 3 are pointed or joined via the joints. Since most of the joints are left in a space so as to be in line contact with each other, the sound propagation portion can be minimized, thereby preventing the solid-borne sound from being transmitted to the adjacent floor panel. .

FIG. 4 shows the fiber joint 9 according to the present invention and the fifth joint.
It is the figure which compared the sound insulation performance with the conventional mortar joint 5 shown in the figure. As is clear from this figure, it is clear that the fiber joint 9 according to the present invention has significantly higher sound insulation performance than the conventional mortar joint 5.

It is clear that the fiber joints 9 according to the invention can sometimes effectively shield sound around 500 Hz.

<Effect of the Invention> The joint structure of the floor according to the present invention uses a fiber material such as hard glass wool or hard rock wool capable of holding a large space as described above, or uses a steel pipe or a steel bent product. To fill the joints so that there is as much space as possible between the joints and no displacement between the panels, so that most of the joints formed on the floor remain in space and sound is transmitted. Can be effectively blocked.

Therefore, it is possible to prevent the vibration sound from being transmitted to the adjacent room via the floor panel, thereby significantly improving the sound insulation performance of the space.

[Brief description of the drawings]

1 to 3 are cross-sectional explanatory views of a joint structure according to the present invention. FIG. 1 shows a joint structure filled with glass wool or rock wool, and FIG. 2 shows a joint structure in which a steel pipe is inserted. FIG. 3 shows a joint structure in which a bent steel object is inserted, and FIG. 4 is a graph showing a comparison of sound insulation performance between a joint using a conventional mortar and a joint filled with the fiber material of the present invention. FIG. 5 is an explanatory sectional view showing a conventional example. 1 is a beam, 2 and 3 are floor panels, 4 is mortar, 5 is mortar joint, 6 and 7 are wall materials, 8 is hard glass wool, 9 is fiber joint, 10 is steel pipe, 11 is hollow joint embedded with steel pipe, 12 Is a steel bent, and 13 is a hollow joint embedded with the bent.

Claims (1)

(57) [Claims] In a joint under a wall formed between floor panels, the joint is filled with hard glass wool or hard rock wool or a solid is formed by inserting a point or line contact member. A joint structure for a floor, wherein transmitted sound is prevented from being transmitted to an adjacent floor panel.