FR2780075A1 - NOISE SHIELDS AND WINDSCREEN PRESENT IN THE FORM OF ELEMENTS READY TO MOUNT - Google Patents

Abstract

The invention consists of a set of ready-to-assemble elements making it possible to construct noise and wind barriers without lifting means or special tools. These screens are essentially made up of acoustic panels (3) of 1.50 m high by about 2.00 m wide, preferably transparent to preserve the view. The panels are maintained by posts (2), approximately 2.00 m apart, integral with a base (1) from 0.50 m to 1.50 m high approximately above the ground which ensures stability at the wind. The base can be made up of self-stabilizing tubs most often weighted with earth, or of a low wall secured to a conventional buried concrete foundation. This invention is mainly intended for individuals to protect their garden or terrace from surrounding noise. (mainly road) and / or wind. It can also be set up by companies.

Description

NOISE AND WINDSCREEN SCREENS

  PRESENT IN THE FORM OF ASSEMBLIES READY TO ASSEMBLE

  The present invention relates to a set of prefabricated building elements intended essentially for the home.

  protection of the environment. These elements

  once assembled constitute noise barriers

and / or windbreak.

  The construction of noise barriers has so far been reserved for medium to large-scale works. They are carried out by specialized companies working on behalf of major clients (Roads, Motorways, Railways ...) which have a vocation of public service. These

  companies and these owners each have obligations

  results, depending on the nuisances observed and the regulatory protections to be provided (Law on noise

  31 Dec 92 for example). These acoustic performance obligations

  ques, often associated with architectural obligations,

  in most cases lead to studies and

  complex and costly readings, inaccessible to the budget

individual.

  The present invention aims to make available to unqualified individuals elements presented in the form of ready-to-assemble assemblies allowing them to build noise and wind screens by themselves without the aid of

  lifting means and special tools. It brings

  improvement of isolation from an existing state, without claiming an obligation of result. The order of magnitude of the acoustic attenuations which can be achieved for typical sites is from 27 to 33 decibels A. The user himself appreciates the possible results of the application which he projects, more or less effective depending on the site. of which he

has.

  The screen according to the invention is in the form of elements which can be handled by one or two people and transportable using a private car. The maximum weight required by

  element is 80 Kg; but we generally limit ourselves to 50 kg.

  The maximum dimension of an element is 2.50 m to 3.00 m for posts for example, the maximum width is 1.50 m to

  2.00 m for panels for example.

  The screen according to the invention essentially consists of two parts: 1 A lower part consisting of an opaque base

  to ensure stability vis-à-vis the wind essentially.

  This base can be presented in two different solutions.

  annuities: - a self-stable solution where the base consists of trays assembled together, placed on the ground and requiring no foundation, - a conventional solution where the base consists of a

  masonry low wall associated with a buried reinforced concrete foundation.

  2 - An upper part made up of acoustic panels

  transparent or opaque, fixed with glazing beads at

plates anchored in the base.

  The self-stable solution is characterized by the basins of its base weighted with various materials. These trays form a monolithic self-stable assembly under the action of the wind for the entire screen. This solution has the advantage

  to be removable and reusable on another site. Its ori-

  originality is to use non-current materials

  today and having to undergo a special shaping or molding

links to be used.

  The bins must be light, resistant and rot-proof.

  These three criteria are defined by the following characteristics:

  : - lightness: maximum weight of 80 Kg per element,

  - mechanical resistance: in relation to the weight and the push-

  of ballast materials and in relation to the effects of the wind, particularly at the level of the post embedding in the head tank, - rot-proof: materials placed in an outdoor site in

  contact with soil, plants, moisture, and

  before being exposed to either frost or sun.

  For example, we can cite composite materials based on wood plywood, fiberglass fabrics and epoxy resins. Other possible materials: fiber-reinforced polyesters, reinforced PVC, reinforced plastics, lightweight concrete

  resin or any other suitable material with a sur-

  pleasant face in finish and color.

  The base consists of a bed of "head trays" in a single file and one, two or zero beds of "foot trays"

  grouped in two lines. The succession of beds forms an apparatus

  masonry type reillage to add cohesion to the base. In the transverse direction, the tanks can be assembled strictly superimposed or offset to provide a vegetable surface on the walls of the base. The connections are made using stainless steel screws, nuts and washers

  or the like to resist stress and corrosion.

  The tanks are ballasted with powdery or liquid materials

  sufficient (earth, rubble, water, etc.) in sufficient weight to

  check the stability of the entire screen. This ballast can be in particular topsoil, it will be said that the tanks are "plantable". For this purpose, the upper face of the tanks is wide open to allow the installation of

  plants and their maintenance, and their bottom is arranged in

serve as water.

  The post is anchored in the head tray at the level of the

  central cross section which is stiffened by a medial wall

  diane described in the example below. The post can be made of various materials, such as for example composite materials similar to tubs, resin concrete, fiber concrete, wood of sufficient strength (oak, azobé,

  etc.) or any other suitable material. Among these other materials

  rials, it will be advantageous to use metal for facilities

  supply and processing. Posts and screens

  closed can therefore be commercial profiles (HEA, rectangular tubes, folded sheets, etc.) raw or galvanized to

  hot, or specially aluminum elements

  as far as these elements are transportable

  the technical characteristics defined above. The

  posts and glazing beads receive exterior paint.

  Acoustic panels can be translucent (glass, polycarbonate, plexiglass, etc.) or opaque (wood, composite, metal, etc.). These materials are chosen from those used

  for conventional acoustic screens. The choice of translu-

  cide represents the real interest of the screen in applications

  aimed at. It provides sound protection and protection

  wind, while retaining the view of the landscape and the

  for the protected area. Certain panels can be chosen opaque for local reasons of discretion by

example.

  Acoustic posts and panels are not available

  commercially available to the general public under the dimensions

  sions adapted to the screen according to the invention. So they will do

  also the object of a particular production.

  The classic solution is characterized by its base

  which generally uses cost-effective building materials

  rants, available to the general public. The base as-

  on the stability of the screen mainly under the action of the wind. It must also resist shocks, dirt and

  can be used as support for vegetation. Many va-

  laughing at the example given below are possible: hollow or solid agglomerates, bricks, stones, panels or any other

  construction elements meeting technical specifications

of the invention.

  The posts will preferably be metallic, as

  previously written. Their base is equipped with a fixing plate or engages in a reservation of the concrete foundation. The anchoring device for the plate constitutes a particular aspect of the invention. It is described in detail

in the example below.

  The acoustic panels are identical to the solution

to-stable.

  The two solutions, self-stable and classic, are compatible

  between them. The position of the acoustic panels is aligned from one solution to another. The same screen can therefore

be mixed.

  The invention will be clearly understood using the two examples

  of embodiments which follow, one for a screen of the auto-type

  stable, the other for a conventional screen. These examples refer to the appended schematic drawings representing, without limitation, some embodiments of this invention. Their dimensions were checked for a wind defined by French Rules NV 65, in region III,

normal site.

  Plate 1: Overview in perspective of a self-stable screen (figure 1). Plate 2: Views of a head tank: from above (figure 2), from the bottom (figure 3) and sections in longitudinal elevations

  (Figure 4) and transverse (Figure 5).

  Plate 3: Views of a foot pan: from above (figure 6), from the bottom (figure 7), sections in longitudinal elevations (figure

  8) and transverse (Figure 9) and schematic cross-section

underbody dirty (figure 10).

  Plate 4: Position of the assembly bolts for the direction of installation indicated (figure 11), in correspondence with the cut

transverse (figure 12).

  Plate 5: Horizontal section on a post made of composite materials (figure 13) and partial section of the bottom of a tank

(figure 14).

  Plate 6: Overview in perspective of a screen of

classic type (figure 15).

  Plate 7: Anchor templates for posts: elevation of

  mounting (Figure 16) and plan view of a template (Figure 17).

  Plate 8: Horizontal section on a metal post (figure 18) and elevation section on a lower glazing bead

(figure 19).

  SCREEN Self-stable: Drawings on boards 1 to 5.

  Plate 1: Overview The drawing shows, in order of assembly: - The self-stable base consisting of "foot trays" (10) and "head trays" (11). Beforehand, the seat floor (9) must be properly leveled and stabilized to admit

pressures of the order of 5 T / m2.

  - The posts (12) which hold the acoustic panels

ques.

  - The ballast material of the bins, which is earth here-

  getal (13). The minimum ballast is 1060 kg for a container

  head (11) and 850 Kg for each foot pan (10).

  - The acoustic panel (5) which provides protection for

  the top of the screen. We have chosen here a ma-

  15 mm thick transparent material. A smaller thickness requires a reinforcement cover in the upper part to

resist the wind.

  Plate 2: Head tank (11) It is naturally alone at the top of the base. Its essential role is to support the post (12) and the acoustic panel (5) fixed by the glazing beads (8). The area

  undergoes significant local efforts and is di-

  measured accordingly. It is characterized by a central wall acting as a stiffener and distributing the force of the post (12) over the entire section of the tank (11). The pole

  (12) is clamped on this middle wall by two file stirrups

  your. This device admits different thicknesses of post (12), depending on the nature of their materials. It should be noted that the posts (12) fixed on head tanks (11) are shorter than metal posts (3) anchored on the buried foundation (1) of the example below. Therefore, they can be made of materials with mechanical characteristics inferior to steel. The bottom of the tank is equipped with stiffeners (16) in the shape of a cross and two overflows (17) for water

  watering. The through holes for the connecting bolts

  his are represented by small circles.

Plate 3: Foot boxes (10)

  There are two per bed to provide stabilization.

  natural tee. They are joined or separated according to the choice of

  the user. The schematic transverse section of the soubasse-

  ment shows this possibility by an offset of 20 cm for a tray of a possible third bed. Other lags

  are possible. The two bottom stiffeners (16) are recti-

  lines. The passages for the connecting bolts are shown

  smelled by small circles or dashes according to their posi-

  tions. Plate 4: Mounting method

  The holes for the passage of the connecting bolts are pre-

  seen for mounting to the right or to the left. There therefore always remain unused orifices. If the tanks are equipped with a water reserve, the unused bottom holes will be closed by a plastic shutter. The installation of the ballast materials is done, after tightening the bolts, at

  from the half of the container not covered.

  Plate 5: Detail sections The post (12) shown here is made of composite material, as is the vertical glazing bead (8). It is composed of a tube

  rectangular composite material molded on a filling

  wise inside. Contact with the acoustic panel (5) is ensured by a rubber seal (8a). The water reserve at the bottom of the tank (10) or (11), shown in the partial section, is intended for plantable tanks. Water is in reserve

  in the gravel area (14) which must be quite large

  siers, i.e. for example 15/30 mm to have a speed index

  important. A geotextile (15), placed on the gravel,

  avoids their contamination by topsoil (13). The rai-

  dissectors (16) leave water passages at their ends.

Overflows (17) are provided.

  Classic SCREEN: Drawings on plates 6 to 8.

  Plate 6: Overview The drawing shows in order of assembly: - The reinforced concrete foundation (1) which ensures the stability of the structure. Given the diversity of sites, this part of the work can have very different forms. For

  for this reason, it is at the initiative of the user.

  - The anchor (2) which provides the link between the foundation

  (1) and the metal post (3). See details on plate 7.

  - The metal post (3) which holds the acoustic panels (5). This post (3) is anchored either directly in the foundation (1), as shown in this example, or in the

  upper part of the base (4), if the latter is sufficient

  strongly resistant. In this case, the post (3) is shorter and therefore less stressed by the wind for example. He can be

  chosen from a material with inferior mechanical characteristics

  steel, see post (12) on page 5.

  - The masonry base (4) which contributes by its weight to the stability of the structure. We have chosen blocks here

  storekeeper 25 X 50 X 20 cm (H X W X 1).

  - The acoustic panel (5) identical to the auto-

stable.

  Plate 7: Anchoring for posts The originality of the device lies in the shaping of

  two templates (6) which give the exact position of four ti-

  threaded ges (7)) intended to receive the post plate (3). A housing (la) is provided for this purpose in the concrete of

  the foundation (1). The lower template, made of heavy plate, trans-

  puts the effort of the rods (7) to the concrete and to the reinforcement of the

  foundation (1). The upper template, made of light sheet metal, only

  a role in positioning the rods (7). All

  the anchor, rods (7) and jigs (6), is held in the po-

  desired position by wire ties resting on the reinforcement. The elevation shows the position of the nuts when pouring the concrete (l) and when placing the post.

  (2). This device makes it possible to adapt to all depths

  anchors, using commercial threaded rods which are cut as required. The distance between the two templates (6) is determined by the dimensions of the foundation

  (1). The shaping and mounting of these two templates (6) allows

  put a correct placement of the foundation concrete

(1).

  Plate 8: Post and glazing beads The post (3) is here a commercial profile type HEA 120, hot dip galvanized. It is lacquered in the oven by a paint

  polyester. The vertical or horizontal glazing beads (8) provided

  rent the fixing of the acoustic panels (5) on the posts

  (3), on the base (4) or (11) and on the upper cover

  possible later. They are made of steel sheets, galvanized and lacquered like the posts. Contact with the acoustic panel (5) is ensured by a rubber seal (8a).

  All the bolts of the screens are in stainless steel or similar

  laire. The invention is mainly intended for individuals

  to improve the environment of their living environment by protecting

  managing for example their garden or terrace of road noise.

  By modulating the height of the screen, this product can also be advantageously used for cafe terraces,

  campsites, sports grounds, etc. For ecological reasons

  simplicity and simplicity which are the guides of this invention, the manufacturing will retain for each element a format and a

standard materials.

Claims (7)

  1) Self-stabilizing or conventional type noise barriers and wind screens made up of construction elements ready to be assembled, assembled without lifting means or special tools by non-professionals, characterized by the fact that they consist of: - a base formed either by self-stable tanks (10) and (11), or by a buried reinforced concrete foundation, - posts fixed to this base,   - acoustic panels (5) fixed between the posts (3).   2) Anti-noise and self-stabilizing or conventional type windscreens according to claim 1, characterized in that all of their elements have a maximum weight of 80 kg, a maximum length of 3.00 m for the posts (3) and the panels (5) and   a maximum width of 2.00 m for the panels (5).   3) Anti-noise screen and self-stabilizing windscreen according to   claims 1 and 2 characterized in that the tanks (10)   and (11), placed on the ground, ballasted with materials and assembled   Wheat on one or more beds using bolts, form a self-stable monolithic base under the action of the wind for the entire screen.   4) Self-stabilizing noise barrier and windscreen according to   claims 1 to 3 characterized in that the tanks (10)   and (11) have through holes for assembly bolts such that the mounting of the base can be done in advance and without hindrance, to the right or to the left for all beds.   ) Anti-noise screen and self-stabilizing windscreen according to   claims 1 to 4 characterized in that all of its elements   parts can be dismantled, transported manually and re- usable on another site.   6) Anti-noise screen and self-stabilizing windscreen according to   claims 1 to 5 characterized in that the tanks (10)   and (11) are made of materials resistant to the effects of wind and rotproof.   7) Anti-noise screen and self-stabilizing windscreen according to   claims 3 to 6 characterized in that the position re-   lative of the tanks (10) and (11) can be variable transverse-   to provide vegetable surfaces on the walls of the base, in addition to the upper surface of the tanks (11). 8) Anti-noise screen and self-stabilizing windscreen according to   claims 3 to 7 characterized in that the tanks (10)   and (11) can be ballasted with pulverulent or liquid materials, insofar as the total mass of the ballasted tanks is sufficient to oppose the effects of the wind in the site concerned.   9) Anti-noise screen and self-stabilizing windscreen according to   claims 3 to 8 characterized in that the head tank   (11) has in its central cross section, at the level of the post embedding (12), a middle wall acting as a stiffener and distributing the force of the post (12) on the entire section of the tank (11).   ) Anti-noise screen and classic type wind screen according to   claims 1 and 2 characterized by a set of two   anchor jigs (6) per post ensuring a function of holding the anchor rods (7) in their correct position during   foundation concreting (1) and a transmission function   the tensile force of these rods (7) at this foundation   tion (1), thanks to the lower template provided in heavy plate for this effect.