JPS6272861A - Floor structure - 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] [Industrial application field] The present invention relates to a floor structure.

[Prior Art] Generally, a floor structure is constructed by disposing a floor surface material at the L portion of a floor structure material such as a small beam or a joist. The floor structure preferably has excellent vibration-proofing and sound-insulating properties.

Conventionally, a floating floor construction method described in, for example, Japanese Unexamined Patent Publication No. 59-78351 has been proposed as a method for improving sound insulation performance. According to this proposal, the joists and the floor material are joined together, and a vibration isolating material is interposed below the joists.

[Problems to be Solved by the Invention] However, according to the above floating floor construction method, the floor structure is provided below the joists, which are the floor structure materials, with the vibration isolating material further below. Structural materials were duplicated, resulting in high manufacturing costs.

Furthermore, since the joists and the floor material are directly connected, vibrations occur between them, gaps are created, and floor vibrations and floor noise cannot be completely prevented.

The purpose of the present invention is to suppress the occurrence of vibrations on the floor surface, further prevent the occurrence of floor rumbling, and also to reliably attenuate the vibrations occurring on the floor surface and improve the vibration-proofing effect of the floor structure. It is said that

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a floor structure in which a floor surface material is disposed above a floor structure material, in which a viscoelastic material is applied to the upper surface of the floor structure material. Your body! The viscoelastic body is attached with a floor material on the top surface thereof.

[Function] According to the present invention, it is possible to securely and integrally join the floor structure material and the floor surface material, thereby suppressing vibrations on the floor surface and preventing the occurrence of floor noise. It becomes possible.

In addition, when floor structure materials and floor surface materials are deflected and deformed due to shocks and vibrations applied to the floor surface, shear deformation occurs in the viscoelastic body inserted between them due to the difference in deformation between the two, and energy generated by the shocks and vibrations is generated. can be reliably absorbed by the viscoelastic body.

As a result, it is possible to suppress the occurrence of vibrations on the floor surface, further prevent the occurrence of floor noise, and reliably attenuate the vibrations occurring on the floor iI'Ii, thereby improving the soundproofing effect of the floor structure. becomes.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 relates to a floor MII structure according to an embodiment of the present invention,
2 is a sectional view taken along line I-I in Figure 2, Figure 2 is a perspective view showing the entire unit building, Figure 3 is a perspective view showing the structure of each building unit used in the unit building, and Figure 4 is a perspective view showing the structure of each building unit used in the unit building. FIG. 2 is a sectional view taken along the line ■-IV in FIG. 2, and FIG. 5 is a perspective view showing the process of joining each floor structure material.

The floor structure 20 shown in FIG. 1 corresponds to the floor portion of the unit building 21 shown in FIG. 2, and the unit building 21 is formed by connecting a plurality of building units vertically and horizontally. That is, the unit building 21 shown in FIG. 2 has a plurality of lower floor building units 23 arranged adjacent to each other on the top of a foundation 22, and furthermore, upper floor building units 24 are arranged correspondingly above the lower floor building units 23. Ru. The vertically and horizontally adjacent building units 23 and 24 are connected to each other, and a roof unit 25 is arranged above the connected upper floor building units 24.

Of the unit buildings 21 constructed in this way, each lower floor building unit 23 and upper floor building unit 24 are as follows:
It is formed by combining a plurality of structural members into a substantially rectangular parallelepiped shape. FIG. 3 shows the structure of the lower and upper floor building units 23, 24, each of which has steel columns 26 erected at each of its four corners. Each pillar 26 to be erected
Between the lower end sides of each support column 26 in the X direction, a steel girder girder 27 is arranged, and between the lower end side parts of each support column 26 in the Y direction, a steel floor girder 27 is installed. 28 are arranged. Each girder body girder 27 and concrete girder 28 have their respective ends connected to the lower end sides of each support column 26. On the other hand, among the upright columns 26, a steel girder ceiling girder 29 is disposed between the upper end sides of each column 26 in the X direction, and one end side of each column 26 in the Y direction. A steel gable culvert 30 is provided between the sections.

Each of the girder ceiling beams 29 and the gable ceiling dog beams 30 are also connected at their respective ends to the upper end sides of each support column 26.

Between each pair of opposing girder girders 27, a floor girder 32 is provided.
There are multiple pieces, each weighing 1J! :32 are arranged at predetermined intervals in the X direction. Each of the floor beams 32 arranged has each end joined to the respective girder girder 27, and the joining is performed as shown in FIG. 5. That is, the floor beam 32 is formed of I-type steel, and the girder girder 27 and the floor beam 32 are joined by the web portion of the floor beam 32 and the web portion of the girder girder 27 formed of channel steel. This is done by connecting them via connecting pieces 33 each having a cross-section shape. At this time, the web part of the girder girder 27 and the connecting piece 3
3. The floor beams 32 and the connecting pieces 33 are connected by bolts and nuts 34, respectively. Further, the girder girder 27 and the floor beam 32 are connected by the connecting piece 33 so that their upper surfaces are at the same height level.

Girder girder 27 and floor girder 3 that are at the same height level
As shown in FIG. 5, a sheet-like viscoelastic body 36 is adhered to the upper surface of the device 2 via an adhesive 37.

As the sticky material 36, for example, a vibration-proof rubber sheet or a butyl rubber sheet cut into a predetermined shape is used. If a highly adhesive butyl rubber sheet is used, it can also serve as the adhesive 37 since it has adhesive properties itself.

In this way, the floor materials 38 are disposed on the floor beams 32 that are disposed at predetermined intervals in the X direction. The floor material 38 is further bonded via an adhesive 37 to the upper surface of the viscoelastic body 36 bonded to each floor beam 32.

As a result, the back surface of the floor material 38 is intermittently supported by the upper surface of each floor beam 32 as shown in FIG. 4 when viewed in the X direction, and as shown in FIG. 1 when viewed in the Y direction. Thus, each floor beam 32 is supported entirely in the longitudinal direction. In this way, the floor structure 20 is formed by integrally joining the floor beams 32, the viscoelastic body 36, and the floor material 38.

On the other hand, a plurality of ceiling beams 40 are arranged between each pair of opposing girder ceiling beams 29, and the ceiling beams 40 are arranged at predetermined intervals in the X direction. Each of the ceiling beams 40 to be installed has each end attached to each girder ceiling beam 2.
It is connected to 9. A ceiling surface material (not shown) is attached to the lower surface of each of the ceiling beams 40, which constitutes the ceiling portion of the building unit 23, 24.

The lower floor and h floor building units 23 and 24 formed in this way are adjacent to each other in the -1-down and water direction, and for example, as shown in FIG. The 20 floor materials 38 are made to be continuous with each other.

Next, the operation of the embodiment L will be explained.

According to the floor structure 20 of each building unit 23, 24 according to the above embodiment, the floor beams 32 and the floor surface material 3 are used as floor structure materials.
8, it is possible to securely connect them in one piece, thereby suppressing the vibration of the floor surface when a load or shock is applied to the floor surface in the direction of arrow A, and also preventing the occurrence of floor noise. It becomes possible.

In addition, when a load or impact is applied to the floor surface in the direction of arrow A, the bonded floor beams 32 and the floor material 38 in the X direction are shown by the two-dot chain line PL in FIG. In the Y direction, a bending deformation as shown by the two-dot chain line P2 in FIG. 1 occurs. At this time, the viscoelastic body 36 inserted and bonded between both the floor beam 32 and the floor material 38 has a shear force based on the difference between the amount of deformation of the floor beam 32 and the amount of deformation of the floor material 38. Deformation occurs, and it becomes possible to reliably absorb energy due to shocks and vibrations applied to the floor surface by the shearing deformation of the viscoelastic body 36. This makes it possible to suppress the occurrence of vibrations on the floor surface, further prevent the occurrence of floor rumbling, and reliably attenuate the vibrations occurring on the floor surface.

Further, the floor structure 20 according to the above embodiment is used in a normal floor structure, and the joists arranged in the direction intersecting the floor beams 32 are removed, and the floor structure 20 arranged in the X direction is removed accordingly. This is achieved by increasing the number of small beams 32 (decreasing the arrangement pitch interval). As a result, I weighed 1j! The rigidity of the floor surface is improved by increasing the number of :32, so the vibration damping performance of the floor structure 20 is improved.

[Effects of the Invention] As described above, the present invention provides a floor structure in which a floor surface material is disposed above a floor structure material, in which a viscoelastic body is bonded to the upper surface of the floor structure material, and the viscoelastic body is bonded to the top surface of the floor structure material. By bonding the floor material to the top surface, it suppresses the generation of vibrations on the floor surface, further preventing the occurrence of floor noise, and reliably attenuates the vibrations generated on the floor surface, improving the soundproofing effect of the floor structure. It has the effect of being able to improve the

[Brief explanation of drawings]

FIG. 1 relates to a floor structure according to an embodiment of the present invention, and shows a second embodiment of the floor structure.
2 is a perspective view showing the entire unit building, 3 is a shoulder view showing the structure of each building unit used in the UNIATO building, and 4 is a sectional view taken along line I-I in the figure. Figure I
FIG. 5 is a cross-sectional view taken along the line V-IV, and a perspective view showing the process of joining each floor structure material. 20... Floor structure, 27... Layered girder, 28...
Performance girder, 32... Floor beam, 33... Connecting piece, 36
... Sticky substance, 38... - Floor material. Patent applicant: Sekisui Chemical Shigyo Co., Ltd. Representative Hiroshi 1) Kaoru

Claims (1)

[Claims] (1) In a floor structure in which a floor material is placed on top of a floor structure material, a viscoelastic material is bonded to the top surface of the floor structure material, and the floor material is bonded to the top surface of the viscoelastic material. A floor structure featuring: