EP0044304B1 - Amortissement sonore dans conduits de ventilation - Google Patents
Amortissement sonore dans conduits de ventilation Download PDFInfo
- Publication number
- EP0044304B1 EP0044304B1 EP80901859A EP80901859A EP0044304B1 EP 0044304 B1 EP0044304 B1 EP 0044304B1 EP 80901859 A EP80901859 A EP 80901859A EP 80901859 A EP80901859 A EP 80901859A EP 0044304 B1 EP0044304 B1 EP 0044304B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- conduits
- sound damping
- sound
- framework
- transverse connection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000013016 damping Methods 0.000 title claims abstract description 13
- 238000009423 ventilation Methods 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 claims description 4
- 238000009408 flooring Methods 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
Definitions
- This invention relates to sound damping device comprising a set of parallel ventilation conduits in flooring elements of concrete which set of conduits at one end are connected to a feed conduit and at the other end are connected to an exhaust means leading to a room thereunder, at least two adjacent conduits being closed in the same end and connected by only one transverse connection, so that the conduits of the pair are connected in series for passing ventilation air to said exhaust means.
- Parallel conduits in the direction of the span of prefabricated flooring elements of concrete are often used for branching off the ventilation system in a building.
- some of the conduits in the framework elements are connected in one end to a feed conduit, and the air is thereafter passed on through the conduits to exhaust means connected to a conduit somewhere along its length or at its end.
- the conduits can also be connected in series so that the ventilation medium is passed through a number of parallel conduits within the element. See for instance DE-C-800 331.
- the invention relates to a construction which is so formed that the concrete elements will act as sound damping means for noise from fans and sound, which is transmitted from one room to another via the ventilation piping.
- the object of the invention is to improve the sound damping effect of a concrete element of the form stated above.
- the damping device is hereby characterized in that the transverse connection is placed at a distance of 0.5-2.0 m from the end closures of the conduits and that a plug of sound damping material, such as mineral wool, is placed in each conduit between the end closure of the conduit and the transverse connection.
- the figure shows two embodiments of the invention, where a concrete slab is cut and taken apart in its two parts in order to show the conduits.
- the figure is thus a perspective view showing a concrete slab 1, and the slab is cut transversely so that a small piece 2 has been parted, whereby the openings of five conduits 3, 4, 5, 6 and 7 can be seen.
- a transverse connection 8 has been opened between the conduits 3 and 4 in that a cavity has been cut down into both conduit 3 and the conduit 4 from the upper side 9 of the slab before the concrete has been set.
- the cavity is covered in the upper side 9 by means of plastics, a rubber plug or other suitable material.
- the plug is shown by phantom lines and is denoted by 10. The plug only reaches the upper edge of the conduits 3 and 4 and it is thus seen, that a connection 8 is established between the two conduits 3 and 4 under the plug 10.
- the distance between the left end of the slab and the transverse connection 8 can be anything between 0.5 to 2.0 m.
- a plug of sound damping material (not shown) is inserted in the conduits between the end closure and the transverse connection 8.
- a second embodiment of the transverse connection is also shown in the figure from which the connection between conduits 5, 6 and 7 can be seen.
- This connection has been established in that a bore has been drilled transversely to the conduits 5, 6 and 7 and ending in the conduit 5.
- the bore is parallel to the upper side 9.
- the bore is plugged between the edge 11 of the slab and the conduit 7 by a plug 12 and this can be done after that the slab has been set by inserting an expander plug or the like in the bore. Concrete or plastics can also be used for this purpose. It is obvious that according to the two embodiments described any number of conduits can be connected though in the first case it has been described a connection between the two conduits and the second embodiment includes a connection between three conduits.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Electromagnetism (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Building Environments (AREA)
- Duct Arrangements (AREA)
- On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
- Pipe Accessories (AREA)
Abstract
Claims (1)
- Dispositif pour amortir le bruit, comportant un groupe de conduits de ventilation parallèles (3, 4, 5, 6, 7) ménagés dans des éléments de sol en béton; ce groupe de conduits étant en communication par une extrémité avec un conduit d'alimentation, et par son autre extrémité relié à des moyens d'échappement aboutissant à un local sous-jacent; au moins deux conduits adjacents (3, 4; 4, 5) ayant la même extrémité obturée et communiquant seuelment par une liaison transversale (8), de telle manière que les deux conduits se trouvent raccordés en série pour permettre le passage d'un courant d'air de ventilation aboutissant auxdits moyens d'échappement; caractérisé en ce que la communication transversale (8) est située à une distance comprise entre 0,5 et 2,0 m par rapport aux extrémités obturées des conduits; et en ce qu'un bouchon de matière amortissant le bruit, telle que de la laine minérale, est placé dans chaque conduit entre l'extrémité obturée de celui-ci et la communication transversale (8).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7908293A SE422609B (sv) | 1979-10-05 | 1979-10-05 | Anordning och forfarande vid ljuddempning av ventilationskanaler i bjelklagselement |
SE7908293 | 1979-10-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0044304A1 EP0044304A1 (fr) | 1982-01-27 |
EP0044304B1 true EP0044304B1 (fr) | 1984-03-07 |
Family
ID=20338990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP80901859A Expired EP0044304B1 (fr) | 1979-10-05 | 1980-10-01 | Amortissement sonore dans conduits de ventilation |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0044304B1 (fr) |
BE (1) | BE888283A (fr) |
DE (1) | DE3066852D1 (fr) |
DK (1) | DK235981A (fr) |
FI (1) | FI68697C (fr) |
NO (1) | NO152947C (fr) |
SE (1) | SE422609B (fr) |
WO (1) | WO1981001026A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5239792A (en) * | 1990-01-09 | 1993-08-31 | Teletron Limited | Eavesdropping-proof room and sound dampening devices therefor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE800331C (de) * | 1949-03-26 | 1950-10-30 | Buderus Eisenwerk | Verfahren zur Verbesserung der waermedaemmenden Eigenschaft von Betonfertigbauteilen, wie Platten, Steinen u. dgl., mit durch-gehenden Hohlraeumen |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US640176A (en) * | 1899-02-23 | 1900-01-02 | Heinrich Lehmann | Process of producing hollow walls and roofs of cast mortar. |
FR1227466A (fr) * | 1959-03-13 | 1960-08-22 | éléments évidés en béton armé et leur procédé d'assemblage | |
SE349842B (fr) * | 1970-12-21 | 1972-10-09 | Straengbetong Ab |
-
1979
- 1979-10-05 SE SE7908293A patent/SE422609B/sv not_active IP Right Cessation
-
1980
- 1980-10-01 DE DE8080901859T patent/DE3066852D1/de not_active Expired
- 1980-10-01 WO PCT/SE1980/000234 patent/WO1981001026A1/fr active IP Right Grant
- 1980-10-01 EP EP80901859A patent/EP0044304B1/fr not_active Expired
-
1981
- 1981-04-03 BE BE0/204376A patent/BE888283A/fr not_active IP Right Cessation
- 1981-05-27 FI FI811637A patent/FI68697C/fi not_active IP Right Cessation
- 1981-05-29 DK DK235981A patent/DK235981A/da not_active Application Discontinuation
- 1981-06-01 NO NO811847A patent/NO152947C/no unknown
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE800331C (de) * | 1949-03-26 | 1950-10-30 | Buderus Eisenwerk | Verfahren zur Verbesserung der waermedaemmenden Eigenschaft von Betonfertigbauteilen, wie Platten, Steinen u. dgl., mit durch-gehenden Hohlraeumen |
Also Published As
Publication number | Publication date |
---|---|
SE7908293L (sv) | 1981-04-06 |
NO811847L (no) | 1981-06-01 |
NO152947B (no) | 1985-09-09 |
SE422609B (sv) | 1982-03-15 |
DE3066852D1 (de) | 1984-04-12 |
FI68697C (fi) | 1985-10-10 |
EP0044304A1 (fr) | 1982-01-27 |
DK235981A (da) | 1981-05-29 |
FI68697B (fi) | 1985-06-28 |
WO1981001026A1 (fr) | 1981-04-16 |
FI811637L (fi) | 1981-05-27 |
NO152947C (no) | 1985-12-18 |
BE888283A (fr) | 1981-07-31 |
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