JPH0366856A - Suspension support structure for ceilings in buildings - Google Patents

Abstract

PURPOSE:To prevent noise generation by furnishing a mount support consisting of an upper supporting member and a lower supporting member, the latter being coupled with the former through a vibration absorbing member, and fixing to the undersurface of the floor and the ceiling. CONSTITUTION:An upper supporting member 32 is formed, and also a lower supporting member 35 in which is flange 36 is embedded fast through a vibration absorbing member 38 made of rubber etc. within the wrapping part 34 of the named upper supporting member 32. An upper bolt 33 of this upper supporting member 32 is hung fast at a concrete form member 21 left at the undersurface of the floor part 45 of the above story. By a lower bolt 37 of the lower supporting member 35 is fixed to a mounting sash 52 of the ceiling 51 of the below story. Thereby noise generation from the floor part of the above story is prevented.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a suspension support structure for a ceiling in a building, and more specifically, in a building with a steel frame or reinforced concrete structure, the suspension support structure is formed by molding a metal steel plate. Improvements in the suspension support structure of the ceiling, which consists of suspending and supporting the lower floor ceiling on the lower surface of the upper floor using concrete formwork boards, especially for vibrations that occur in the upper floor. This invention relates to an improvement in a suspension support structure for a ceiling part that has improved soundproofing and sound insulation properties so that noise such as sound and impact noise is not transmitted to the ceiling part on the lower floor side.

(Prior art) In a building with a steel frame or reinforced concrete structure, a concrete form board made of a metal steel plate is left on the underside of the floor on the upper floor, and the ceiling part on the lower floor is attached to the concrete form board. Conventionally, this is a suspension support structure for a ceiling part that is suspended and supported.

The configurations shown in FIGS. 7 and 8 have been proposed.

Here, FIG. 7 is a cross-sectional view schematically showing the general configuration of a ceiling suspension support structure according to a conventional example, and FIG.
Figures (a) and (b) are a perspective view and a cross-sectional view showing a concrete form board made of metal steel plate applied to the above suspension support structure.

That is, in the conventional structures shown in FIGS. 7 and 8, the concrete form board (hereinafter also referred to as form board in 11.) (1), which also serves as a fabric board, is formed by forming a metal steel plate. A plurality of reinforcing protrusions (2) are folded in parallel to each other along the longitudinal direction so as to have a triangular cross section in a downward direction, and an engagement that can be engaged between adjacent sides on both sides in the longitudinal direction. parts (3) and (4), and flat parts (5) at both ends thereof.
) and (5) respectively.

Therefore, when constructing a building, the steel frame section extends horizontally from the concrete main column section (6), which includes steel frames and reinforcing bars and is cast in the vertical direction.

In this case, the concrete form board made of the metal steel plate (
The hook locks each flat part (5), (5) at both ends of 1), and each engaging part (3), (4) on adjacent both sides.
) are attached to each other and laid, and this formwork board (1) is used as a part of the floor formwork as concrete formwork, and the upper part of the formwork board (1) is also fitted with reinforcing bars, etc. as appropriate. By arranging reinforcement and pouring concrete in this state, concrete body parts such as the wall part (8) and the floor part (9) are constructed respectively. For the frame board (1), connect it to the floor part (9
), and during subsequent interior decoration, multiple metal support bolts (lO) are welded and fixed at the upper end to the remaining formwork board (1). The ceiling part (11) is directly supported by each of these support bolts (10).

[Problem to be solved by the invention]

However, in the case of the suspension support structure for the ceiling part having the conventional configuration as described above, the concrete form board (1) made of metal steel plate is attached to the floor part (9) on the upper floor side that constitutes the concrete frame part. ), and by using multiple support bolts (lO) made of metal welded directly to the concrete form board (υ), the ceiling on the lower floor side (11) is directly suspended and supported, and in this way, the upper floor (9
) and the ceiling (11) on the lower floor are connected by metal members that have relatively good transmission of sound and vibration, so the floor (9) on the upper floor There was an undesirable problem in that the noise generated, such as vibration noise and impact noise, was transmitted straight to the ceiling on the lower floor.

This invention attempts to improve these conventional problems, and its purpose is to remove the concrete formwork members made of metal steel plates left on the lower surface of the floor on the upper floor. , similarly using multiple metal support bolts,
When the ceiling on the lower floor is suspended and supported, the noise generated on the floor on the upper floor is prevented from being transmitted to the ceiling on the lower floor. The object of the present invention is to provide a suspension support structure for a ceiling in this type of building.

[0! Means for Solving the Problem] In order to achieve the above object, the suspension support structure for the ceiling in a building according to the present invention includes a support that connects the floor on the upper floor and the ceiling on the lower floor.゛The installation consists of an upper support member and a lower support member connected to the upper support member via a vibration absorbing member, and a support is used to install the concrete formwork made of metal steel plates left on the underside of the floor. The member is supported by an upper support member, and the ceiling part is supported by a lower support member.

That is, the present invention provides a support for mounting the upper support member and the lower support member coupled to the upper support member via the vibration absorbing member, and removes any metal remaining on the lower surface of the floor on the upper floor. For concrete formwork members made of steel plates,
A ceiling portion in a building characterized in that the upper support member is fixedly attached and suspended, and the ceiling portion on the lower floor side is fixedly attached to and supported by the lower end portion of the lower support member. This is a suspended support structure.

[Function] That is, in this invention, the upper support member and the lower support member coupled to the upper support member via the vibration absorbing member are mounted using a support body, and the upper support member is attached to the upper floor side. The structure is suspended from the concrete formwork made of metal steel plates left on the underside of the floor, and the ceiling on the lower floor is supported by the lower support member, so vibrations that occur on the floor on the upper floor are suppressed. Vibration such as sound and impact noise is absorbed by the vibration absorbing member interposed between the upper and lower support members, and the vibrations of the floor on the upper floor are directly transmitted to the ceiling on the lower floor. I'm not afraid.

(Embodiments) Hereinafter, embodiments of the hanging support structure for a ceiling in a building according to the present invention will be described in detail with reference to FIGS. 1 to 6.

FIG. 1 is a cross-sectional view schematically showing the general structure of a ceiling suspension support structure to which an embodiment of the present invention is applied, and FIG. FIG. 3 is a perspective view showing a concrete form board made of steel plate taken out; FIG.
The figure is a sectional view showing another embodiment, and FIGS. 5 and 6 are sectional views showing other embodiments of the connection between the upper and lower support members in the suspended support structure. be.

That is, even in the configuration of the embodiment shown in FIGS. 1 to 3, the concrete form board (hereinafter simply referred to as form board) (21) that also serves as a cloth board is formed by forming a metal steel plate. A plurality of reinforcing protrusions (22) are folded downward in a triangular cross-section in parallel to each other along the longitudinal direction, and are engaged with each other on both sides of the longitudinal direction. Section (23).

(24), and in this example, both ends of 9 are not flattened again in order to effectively maintain the overall strength, and the required places on the formwork surface are not flattened. As described below, the mounting is performed by cutting slits (25) in the radial direction for inserting and locking the upper support member of the support body.

In addition, the support body (31) has an upper bolt part (33) at its upper end that serves as an upper mounting part, and a cylindrical holding part (34) with an opening at the bottom center at its lower end. An upper support member (32) and a large diameter flange portion (36) at the upper end.
), the lower bolt part (37) is attached to the lower end.
and lower support members (35) each formed with a lower support member (35),
The flange part (36) of the lower support member (35) is directly inserted into the enveloping part (34) of the upper support member (32) without contacting it, and the enveloping part (34) is provided with a cushioning material. By filling and molding a vibration absorbing member (38) using a rubber material or a synthetic resin material, the enclosing portion (34) and the flange portion (
36) are combined into one whole.

Therefore, when constructing a building, the concrete main column (42), which includes steel frames and reinforcing bars, is cast vertically.
A steel section extending horizontally from

In this case, beam members such as I-type steel (43), (43)
The hooks lock both ends of the concrete form board (21) made of metal steel plate between each other, and each of the adjacent engaging portions (23) and (24) on both sides are connected to each other. At the same time, the upper bolt part (33) side of one of the upper support members (32) of the support body (31) is laid downward in each slit notch (25) of the plate surface part. Insert the nut (33a) into each of the nuts (33a),
(33b), and in this way, the formwork plate (21) is used as a part of the floor formwork as a concrete formwork, and reinforcing bars etc. are placed on the top of it as appropriate. After arranging the reinforcement, concrete is poured from above and placed as in Kokon.
4) and concrete body parts (45) such as floor parts (45).
1) is configured.

In other words, when the concrete frame part (41) is constructed in this way, the concrete form board (21) is left on the lower surface of the floor part (45), and a part of it protrudes from the upper side. The upper end of the upper bolt part (33) of each upper support member (32) is embedded and fixed in concrete together with a nut (33a), and each of these upper support members (32) The lower support member (35) integrated with the vibration absorbing member (37) through the vibration absorbing member (37), and by extension the support body (31) for each installation, will be suspended downward from this concrete form board (21). .

Further, during the subsequent interior decoration process, in this case, when the ceiling part (51) is installed, each of the above-mentioned attachments is performed on the lower bolt part (37) of the lower support member (35) on the support body (31), for example. , the flange parts (52a
), (52a), each ceiling mount formed in the form of a hat in cross section has a crosspiece (52) and a nut (37) in each case.
a), and each adjoining attachment has a wood wool board (5
3), etc., and then attach the ceiling plate (54) to the flange portions (52a) and (52a) with nails (55), etc. In other words, the lower support member (3)
5) allows the ceiling portion (51) to be suspended and supported.

Therefore, in this embodiment structure, the upper support member (3
2) and a lower support member (35) in which the flange part (36) is embedded and connected to the enveloping part (34) of the upper support member (32> via the vibration absorbing member (38)). Using the support (31), attach the upper bolt part (33) of the upper support member (32) to the concrete formwork member (21) made of metal steel plate left on the lower surface of the floor part (45) on the upper floor. It is fixed and suspended, and the ceiling part (51) on the lower floor side is mounted by supporting the crosspiece (52) by the lower bolt part (37) of the lower support member (35). The upper and lower support members (32) absorb vibrations such as vibration sounds and impact sounds generated on the floor (45) on the floor side.

(35) can be effectively absorbed by the vibration absorbing member (38) interposed between the vibration absorbing members (38), and as a result, the upper floor (
45), the vibrations and noise caused by the lower floor ceiling (
51) can be eliminated.

FIG. 4 shows another embodiment of the present invention, in which an upper bolt part (33), which is an attachment part, is formed on the upper support member (32) over the entire length of the bolt. Nuts (33a) and (61) are disposed on the upper support member (32) so as to protrude from the upper part of the concrete form board (21) and the upper part of the concrete body part (41), respectively, and An acid threaded portion (62) is provided at the upper end of the wrapping portion (34) so as to be screwed into the bolt portion at the lower end of the upper support member (32). A flange portion (36) extending from the flange portion (36) is fitted into the holding portion (34), and a rubber material or a synthetic resin material having vibration absorbing properties is filled and solidified, and the solidified vibration absorbing member (38) through the flange portion (36)
are supported in an isolated state within the holding part (34). With this configuration, the upper support member (32) can be inserted and fixed to the concrete form board (21) from above or below during work, and the nut (61) It is convenient because it has almost the same effect as . Further, since the holding part (34) is separate from the upper support member, workability in a narrow space is very good.

In the embodiments shown in FIGS. 1 to 4, the attachment is carried out on the support (31) and the upper support member (32).
As shown in FIG.
The lower end hook portion (32a) of the upper support member (32) is connected to the lower support member (35) via the vibration absorbing block (38a).
), or alternatively, as shown in FIG.
5) Insert the vibration absorption tubes (38b) and (38b) into the upper end hook part (35a), respectively,
Each hook part (32a), (3
Each vibration absorption tube (38b), (38
(b) may be made to engage with each other, and similar actions and effects can be obtained, and the mode of engagement is not necessarily restricted.

Further, in the above embodiments, a concrete form board shaped into a specific shape was used, but any form board serving a similar purpose may be used. For attachment to the formwork board and ceiling, the upper and lower support members may be attached to the support body by bending the upper end of the upper support member, for example, as shown by the two-dot chain line in Fig. 3. It goes without saying that there are no limitations in this regard, and the device may be attached in a fixed manner.

〔Effect of the invention〕

As detailed above, according to the present invention, the attachment consisting of the upper support member and the lower support member coupled to the upper support member via the vibration absorbing member is achieved by providing a support body,
The upper support member is fixed and suspended from the metal steel plate concrete formwork member left on the lower surface of the floor on the upper floor, and the lower end of the ceiling on the lower floor is attached to the lower end of the lower support member. Because it is structured so that it is fixed and supported, undesirable vibrations such as vibration noise and impact noise generated on the floor of the upper floor,
In other words, noise can be absorbed by the vibration absorbing member interposed between the upper and lower support members, which has the advantage of effectively and well preventing noise in the room on the lower floor. In particular, it has excellent features such as being extremely easy to install, as it can be mounted by simply interposing a vibration absorbing member between the upper and lower support members that make up the support body. It is something.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view schematically showing the general configuration of a ceiling suspension support structure to which an embodiment of the present invention is applied, and Fig. 2 is a concrete cross-sectional view of a metal steel plate applied to the same suspension support structure. A perspective view showing the form board taken out, Figure 3 is from Figure 1 m-m
FIG. 4 is a cross-sectional view showing another embodiment, and FIGS. 5 and 6 are an upper part of the suspension support structure. FIG. 7 is a cross-sectional view showing other embodiments of the joints between the lower supporting members, and FIG. 7 is a cross-sectional view schematically showing the general structure of a conventional ceiling suspension support structure Figures 8(a) and 8(b) are a perspective view and a cross-sectional view showing a concrete form plate made of metal steel plate applied to the above suspension support structure. (21) Concrete form board. (22... Reinforcement protrusion, (23), (24)...
...Engagement part, 25...Notch part. 31...Mounting to support body, 32...Upper support member, 33...Upper bolt part, :]3a), (33b)''...Nut, (34
) ----Holding part, 35)...lower support member, (
36)...Flange part, (37)...Lower bolt part, (37a)...Nut, (38, (38a)
, (38b) "" Vibration absorbing member. 41... Concrete body part, 42... Main column part, (43)... Beam member,
44...Wall part, (45)...Floor part. 51...Ceiling part, (52)...Mounting with crosspiece,
52a)...Flange part, 53>...Wood wool board, (54)...Ceiling board, 55)...Peg. (61)...Nut, (62)...Female screw part.

Claims (5)

[Claims] (1) A mounting support consisting of an upper support member and a lower support member connected to the upper support member via a vibration absorbing member is provided, and the concrete made of metal steel plates left on the lower surface of the floor on the upper floor side is installed. The upper support member is fixed and suspended from the formwork member, and the ceiling on the lower floor side is fixed and supported by the lower end of the lower support member. A suspended support structure for the ceiling of a building. (2) The suspension support structure for a ceiling portion of a building according to claim 1, wherein the vibration absorbing member is made of a rubber material or a synthetic resin material having cushioning properties. (3) The building according to claim 1 or 2, characterized in that the vibration absorbing member is held by a holding part extending from either the upper or lower supporting member. A suspension support structure for the ceiling of an object. (4) The construction according to any one of claims 1, 2, or 3, wherein the upper support member has its upper end fixedly attached to the concrete formwork member so as to be suspended therefrom. A suspension support structure for the ceiling of an object. (5) The upper end of the upper support member is configured to project to the upper surface of the concrete body. Lower support structure.