JPS587049A - Concrete slab - 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 The present invention relates to a slab having m-control performance.

Impacts received by the floor due to walking on the floor or falling objects are transmitted to the slab through vibration energy. A part of this vibrational energy propagates to other parts through the slab,
At Obe no Mikoto, the slab itself that received the impact vibrated and became a source of noise, which often caused noise damage downstairs as airborne sound.

Therefore, in order to prevent the above-mentioned noise damage, conventional methods have been to increase the thickness of the slab itself based on the law of mass, or increase the g
As shown in Table 1, sound insulating materials C such as mortar, steel foam, and anti-vibration rubber are inserted between structural material A and slab B, and the flooring of surface structural materials is carpeted. Preventive measures were taken.

However, noise prevention measures such as thickening the slab, inserting sound insulating material, and installing carpeting require manufacturing time, effort, and cost, and the shaving performance is not sufficient.

This invention was invented to solve the above-mentioned conventional problems.The purpose of this invention is to convert the vibration energy of a noise-generating member into thermal energy by combining it with a certain material, and attenuate the vibration speed and amplitude. By integrally forming an allocation material made of a viscoelastic polymer material, etc., which has the ability to reduce sound radiation, with the slab, the allocation performance is good.
The objective is to provide a concrete slab that also has sufficient sound insulation ability.

Hereinafter, the present invention will be explained with reference to illustrated embodiments.

The 211th to 189911th examples are examples in which the damping material 2 is dug in the concrete slab 1.

Second! I number! As shown in FIG. 1, several damping materials 2 are provided parallel to each other at predetermined intervals in the longitudinal direction at the center of the thickness of the concrete slab 1.

This pigeon coop vibration damping material 2 can be formed into a belt-shaped sheet, using the viscoelastic polymer material 3 itself as in No. 411(1), or using a viscoelastic polymer material as in No. 4E(6). Either use a combination of 3 and iron plate 4, or 4th! E
l (Use a viscoelastic polymer material 5 sandwiched between iron plates 4, 4 like CI, or select one of the books that corresponds to the place where it will be used.

When incorporating the damping material 2 into the concrete slab 1, first, as shown in Fig. 5, the reinforcing bars 5 are made to meander and the damping material 2 is fixed to the curved part, and then the concrete is Type it in. Although FIG. 6 shows a special belt-shaped iron plate 6 provided in place of the reinforcing bar 50, the attachment method is not limited to this.

Fig. 7 shows a modification in which the allocation materials 2 are arranged in a staggered manner.

FIGS. 8 to 11 show modified examples of the method of arranging the damping material 2. FIG.

In FIG. 8, the damping materials 2 are arranged in a lattice shape with equal intervals a and b.

In FIG. 9, cK is widened by the distance b in FIG. 8.

In FIG. 10, every other interval a in FIG. 9 is expanded by KbK.

No. 11E is one in which the allocation materials 2 arranged at intervals of a are arranged in a substantially X-shaped net shape.

$12g is a modification in which the allocation material 2 is formed into a rectangular plate shape, and is arranged at predetermined positions at predetermined intervals.

The above method of arranging the distribution materials 2 is selected and used depending on the difference in the propagation state of the vibration energy transmitted to the concrete slab 1.

No. 13111 is a modified example t in which the distribution material 2 is provided in a sheet form Kll over the entire wK of the concrete slab 1, and a plurality of through holes 7 are provided at predetermined positions on the sheet at predetermined intervals. In this through hole 7.

The 8th bent part of the reinforcing bars for reinforcement is engaged in a meandering manner.

In this way, the vibration energy can be reliably absorbed since the concrete slab 10 is entirely covered with the vibrational material, and the curved part @@8 can be engaged with the through hole 7, so it can be easily fixed.

14 to 18 show the distribution material 2 provided on a prestressed concrete slab 9. In FIGS.

14E and 15 show the damping material 2 provided perpendicularly to the piano wire 10 for fastening.

FIG. 16 shows a modification of the allocation material 2 (ω is formed in a T-shape, (B) is formed in a cross-sectional shape, and (C
) is formed with an H-shaped cross section, and (d) is formed with a hole-shaped cross section.

Figure 917 shows a beam 111C of H-shaped steel with a prestressed concrete slab 9 installed, and damping material 2 is provided at the position where the beam 11 is exposed to white liquid.

The damping material 2 is provided with through holes 11' at predetermined positions,
A piano wire 10 is passed through and fixed to this through hole '11'.

FIG. 18 shows the damping material 2 provided along the piano 1i11OK. FIGS. 19 to 20WA show examples in which the damping material 2 is provided in the beam portion of the concrete slab 1.

Figure 19 shows the square section 1sicllll! of the H-shaped steel 12! Material 2 is provided.

$201i1 is the one in which damping material 2 is provided on the lattice beam 14# and the web portion 15 of the plate beam.

21 to 24 show an embodiment in which the distribution material 2 is pasted on the outer surface of the concrete slab 1, and is provided on a corrugated slab 16.

As shown in FIG. 21, the corrugated slab 16 consists of a slab body 17 and a deck plate 18. and,
The damping material 2 is attached to the outer surface of the top of the beam portion 19.

FIG. 22 shows what is pasted on the outer surface of the recess 20 of the corrugated slab 16.

In Fig. 251El, the plate itself of the beam portion 21 is used as the allocation material. In Fig. 24, the deck plate 18 itself is used as the allocation material.

In this way, the damping material can be applied to the slab of a building that has already been coated, and can be applied to any concrete slab to provide damping performance.

This invention consists of the above structure, and the following effects can be expected.

■ The structure is simple, the construction period is shortened, and vibrations are reliably absorbed, as the structure is fixed using damping reinforcement and mounting hardware before concrete is poured, and is buried within the concrete slab. There is no need to take new noise prevention measures.

■ Since the distribution material can also be provided on the outer surface of the slab, it can be used for all kinds of concrete slabs, including thin slabs such as corrugated slabs.

■ The strength of the slab can be increased by splitting material.

[Brief explanation of the drawing]

1wJ is a conventional concrete slab, 1iX2 is a sectional view of the concrete slab of the present invention, FIG. 3 is a plan view, FIG.
Figure Φ) is a cross-sectional view showing a different aspect. Figure 4 (CL is a cross-sectional view showing another aspect, Figure 5 is a partial cross-sectional view showing a mounting state of the damping material, Figure 6 is a partial cross-sectional view showing a different mounting state, and Figure 7 is; Cross-sectional views showing different aspects of slap, Figure 8, Figure 9, Figure 10, Figure 11
Figure 12 is a plan view showing a different method of arranging distribution materials, No. 1 iSlil is a sectional view showing a different method of a concrete slab, and No. 14511 shows a state in which damping material is provided on a prestressed concrete slab. Plan view, No. 151a
are cross-sectional views, Fig. 16 (a), (b), (c)
, gD is a sectional view showing a modification of the allocation material, FIG.
Diagram 18 of the irises is prestressed; sectional view and plan view showing different aspects of the concrete slab, No. 19Ii! i is a cross-sectional view showing a state in which the damping material is provided on the beam part, No. 20 @ is a cross-sectional view showing a separate part, and Figures 21 to 24 are cross-sectional views showing the state in which the damping material is provided in the corrugated slab. be. A...Surface structure material, B...Slab, C
...Sound insulation material. 1... Concrete slab, 2... Damping material, S... Viscoelastic polymer material, 4...
... iron plate, 5 ... reinforcing bar, 6 ... strip iron plate, 7 ... through hole, B ... tc bar, t.
...Prestressed concrete slab, 10...
...Piano mat, 11...Beam, 11'...
・Through hole, 12...H-shaped steel, 1!・・・・・・Kuepubu, 14・・・Tsuchi-ryo, 15...Kuu・・
Cube section, 16...φ waveform slab, 17...
...Main body, 18...Deck plate, 19...
...Beam part, 20...Concave part, 21...
・Beam part. Patent Applicant Figure 4 - Back 6 Figure m7B Figure 8 Figure 9 Figure 10 Figure 11 Figure 12 Figure 13 Figure 14 Figure 17 It 18 It Figure 19 Figure 219 Figure 22 II Figure 23 ,cormorant

Claims (1)

[Scope of Claims] (1) A concrete slab characterized in that an allocation material is placed at appropriate locations and the allocation material is provided integrally with concrete. (2) The concrete slab according to claim 1, wherein the control material is excavated at the position of the beam portion of the slab. (5) A concrete slab according to claim 1, wherein the distribution material is pasted at a predetermined position on the outer surface of the slab. (4) The allocation material is made of a viscoelastic polymeric material, etc.Claims 1 and 2 = Mushi 25 Collection 5
/ Cleat Stub as described in the section.