JP2000248628A - Floor/ceiling structure and building unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enhance sound insulating properties by stretching an upper-story floor joist on the upper portion of a pair of opposed edge floor joists, stretching a lower-story ceiling floor joist to the lower portion of the same, and attaching sound insulating face bars onto the lower surface of the upper-story floor joist. SOLUTION: A sound insulating face bar 35 is attached onto the lower surface of a ceiling floor joist 33 for an upper-story building unit 1, which leads to interruption between an upper-story floor face bar 31 and a lower-story ceiling face bar, whereby transmission of vibrational noise of the upper-story face bar 31 to the lower story is reduced. Further, a space K is formed between the sound insulating face bar 35 and the lower-story ceiling face bar attached to the lower surface of a lower-story ceiling floor joist 34. Vibrational noise of the floor face bar 31 on the upper story can be prevented from being solid- born via the floor joist 33 on the upper story, leading to enhanced floor sound insulating properties. Thus, in the upper-story building unit 1, floor/ceiling structure is applicable to a floor panel 3, which can suppress increase in the number of construction steps in the field, whereby the sound insulating properties of the upper-story building unit 1 can be enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor / ceiling structure and a building unit to which a sound insulating surface material is attached.

[0002]

2. Description of the Related Art Conventional floor / ceiling structures are disclosed in
No. 6833. The floor described in the above publication
In a building such as a unit building, a ceiling structure is such that an upper floor panel is provided with a ceiling, and a lower surface of an upper floor framework includes a ceiling surface material and a plurality of support members for supporting the ceiling surface material. The ceiling panel consisting of is attached spatially separated from the floor joist. As a result, it is possible to reduce the volume of the entire unit building without impairing the floor sound insulation.

[0003]

However, the floor / ceiling structure described in the above publication incorporates the floor member and the ceiling member spatially separated from each other, so that the vibration sound of the floor member reduces the floor joist. Can be prevented from propagating to the ceiling member through the floor member, but since there is nothing obstructing between the floor member and the ceiling member, the vibration sound of the floor member is transmitted to the air, and the floor sound insulation cannot be said to be sufficient.

[0004] The present invention has been made to solve the above-mentioned problems of the prior art, and an object of the present invention is to provide a floor / ceiling structure capable of further improving the sound insulation of a floor, and a floor / ceiling structure. Is to provide a building unit to which is applied.

[0005]

According to a first aspect of the present invention, there is provided a floor / ceiling structure in which an upper floor joist is bridged above a pair of opposed end joists, and a lower floor joist is bridged below the pair. It is characterized in that a sound insulating surface material is attached to the underside of the floor joist.

According to a second aspect of the present invention, the building unit is an upper-floor building unit installed on a lower-floor building unit to constitute a unit building, and the floor panel according to the first aspect is provided on a floor panel.
The feature is that a ceiling structure is applied.

(Function) The floor / ceiling structure according to claim 1 is
Since a sound insulating surface material is attached to the lower floor of the joist for the upper floor, the sound insulating surface material blocks the floor member of the upper floor from the ceiling member of the lower floor, and the vibration sound of the floor member is transmitted to the lower floor by air propagation. Can be reduced and floor sound insulation can be improved.

[0008] In the building unit according to the second aspect, the floor / ceiling structure according to the first aspect is applied to the floor panel.
The sound insulation of the building unit can be improved without increasing the number of local steps.

[0009]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 3 show an embodiment of the present invention. FIG. 1A is a perspective view showing a unit building exploded into upper and lower floors, and FIG. 1B is a part A of FIG. FIG. 4 is an enlarged cross-sectional view showing a part B. 2 is a perspective view of the floor panel of the upper floor building unit as viewed from above, and FIG. 3 is a perspective view of the floor panel of FIG. 2 as viewed from below.

1 to 3, T is a unit building,
1 is an upper floor building unit, 2 is a lower floor building unit, 3 is a floor panel, and 4 is a wall panel. In the present embodiment, the unit building T transports the upper and lower building units 1 and 2 produced at the factory to the construction site, and as shown in FIG. After being set on the foundation, the upper-floor building unit 1
And a roof unit (not shown) is mounted on the upper-floor building unit 1. As shown in FIG. 1 (b), the upper and lower building units 1 and 2 each have a bolt 5 projecting from the upper surface of the lower floor building unit 2 connected to a head joint 37 provided on the lower surface of the upper floor building unit 1. It is inserted into a bolt hole and fastened with a nut for joining. The boundary between the upper and lower building units 1 and 2 is covered with the molding material 6.

Each of the upper and lower building units 1 and 2 constituting the unit building T is formed in a box shape from a floor panel 3 and a wall panel 4 erected on the periphery of the floor panel 3. ing. As shown in FIG. 1 (b), the floor panel 3 includes a floor member 31 and an end joist 32 which is framed and attached to a peripheral edge on the back side of the floor member 31, and a lower surface of the end joist 32. A connecting frame member 37 is provided. The wall panel 4 erected on the periphery of the floor panel 3 is
A frame is composed of a lower frame 42, an upper frame 43, and vertical frames (not shown) on both sides, and a wall material 41 is attached to the frame. Bolts 5 projecting from the upper surface of the lower-floor building unit 2 are attached to the upper frame 43 of the wall panel 4.

The present embodiment is a floor / ceiling structure of a unit building T configured as described above, wherein the floor panel 3 of the upper-floor building unit 1 is provided with a ceiling. FIG.
(B) As shown in FIG. 2 and FIG. 3, the floor panel 3 of the upper-floor building unit 1 includes a pair of opposing upper joists 32 on the upper floor.
The upper joists 33, 33,... Are bridged over the upper part of the floor 32, and the lower joists 34, 34,. The floor panel 31 is attached to the upper surface of the floor joist 33 on the upper floor, and the sound insulating panel 35 such as plywood, gypsum board, and lead sheet is attached to the lower surface. Lower joist for ceiling 3
Reference numeral 4 denotes a lower insulation panel, which is mounted on a joining frame member 37 with a cut-out end placed on a connecting frame member 37 with a spacer 36 interposed between the lower peripheral edge of the sound insulation panel member 35 and a lower floor ceiling panel member. (Not shown) is attached. Thereby, the sound insulating surface material 3
A space K is formed between 5 and a lower-floor ceiling panel attached to the lower surface of the lower-floor joist 34.

(Operation of the Embodiment) The floor / ceiling structure of the unit building T of the embodiment is the floor joist 3 of the upper-floor building unit 1.
Since the sound insulating surface material 35 is attached to the lower surface of the floor 3, the sound insulating surface material 35 blocks the floor material 31 on the upper floor from the ceiling surface material on the lower floor, and the vibration sound of the floor material 31 on the upper floor. Can be reduced by air propagation to the lower floor, and the floor sound insulation can be improved. In addition, the sound insulation surface material 35 and the joist 3 for the lower floor ceiling
4 and a space K between the lower-floor ceiling surface material affixed to the lower surface of
Is formed, the vibration sound of the floor material 31 on the upper floor can be prevented from propagating through the floor joists 33 on the upper floor, and the sound insulation of the floor is further improved.

Since the above-mentioned floor / ceiling structure is applied to the floor panel 3 of the upper-floor building unit 1, the sound insulation of the upper-floor building unit 1 can be improved without increasing the number of local steps. .

[0015]

In the floor / ceiling structure according to the first aspect of the present invention, the sound insulating surface material is attached to the lower surface of the joist for the upper floor, so that the sound insulating surface material allows the floor member on the upper floor and the ceiling member on the lower floor. The space is cut off, and the transmission of the vibration sound of the floor member to the lower floor by air propagation can be reduced, and the floor sound insulation can be improved.

In the building unit according to the second aspect, the floor / ceiling structure according to the first aspect is applied to a floor panel.
The sound insulation of the building unit can be improved without increasing the number of local steps.

[Brief description of the drawings]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an embodiment of the present invention, in which (a) is a perspective view showing a unit building exploded into upper and lower floors, and (b) is a view showing parts A and B in (a). It is sectional drawing which expands and shows.

FIG. 2 is a perspective view of a floor panel of an upper floor building unit as viewed from above.

FIG. 3 is a perspective view of the floor panel of FIG. 2 as viewed from below.

[Explanation of symbols]

 T unit building 1 Upper floor building unit 2 Lower floor building unit 3 Floor panel 4 Wall panel 31 Floor surface material 32 Upper floor joist 33 Upper floor joist 34 Lower ceiling joist 35 Sound insulation surface material

Claims (2)

[Claims] An upper floor joist is bridged over a pair of opposed end joists, a lower floor joist is bridged below, and a sound insulating surface material is stuck on a lower surface of the upper floor joist. Floor / ceiling structure characterized by that. 2. An upper-floor building unit installed on a lower-floor building unit to constitute a unit building, wherein the floor / ceiling structure according to claim 1 is applied to a floor panel. Building unit.