GB2543875A - Light weight construction site retractable noise barrier - Google Patents

Light weight construction site retractable noise barrier Download PDF

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Publication number
GB2543875A
GB2543875A GB1610334.3A GB201610334A GB2543875A GB 2543875 A GB2543875 A GB 2543875A GB 201610334 A GB201610334 A GB 201610334A GB 2543875 A GB2543875 A GB 2543875A
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GB
United Kingdom
Prior art keywords
panel
noise barrier
wing
noise
sleeve
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.)
Granted
Application number
GB1610334.3A
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GB201610334D0 (en
GB2543875B (en
Inventor
Lun Ho Wai
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Novacoustics Ltd
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Novacoustics Ltd
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Publication of GB201610334D0 publication Critical patent/GB201610334D0/en
Publication of GB2543875A publication Critical patent/GB2543875A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/02Continuous barriers extending along roads or between traffic lanes
    • E01F15/08Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks
    • E01F15/081Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material
    • E01F15/086Continuous barriers extending along roads or between traffic lanes essentially made of walls or wall-like elements ; Cable-linked blocks characterised by the use of a specific material using plastic, rubber or synthetic materials
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0088Suspended, e.g. ropes or mesh

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)

Abstract

The noise barrier 100 comprises at least one mounting pole 211 and at least one panel 101, the panel having a sleeve through which the pole is slidably inserted, the sleeve having two attached wings extending in different directions, each wing movable about the wings attachment to the sleeve between a closed noise barrier position and an open wind passage position, the wings being movable via the force of wind. Also claimed is a method of installing the barrier. Also claimed is a noise barrier comprising a panel having a side openable from against a support by the force of wind, the side having magnets which attach to the support, the magnets being spaced such that when one magnet is attracted towards the support another magnet is brought towards the support. Also claimed is a method of closing the panel of the magnetic noise barrier. The noise barriers may be used adjacent construction sites.

Description

LIGHT WEIGHT CONSTRUCTION SITE RETRACTABLE NOISE BARRIER FIELD OF THE INVENTION
The present invention relates to the field of construction structure and particularly to sound barriers for deployment at construction sites or sites having noisy engineering work.
BACKGROUND
Outdoor noise barriers have been erected next to construction sites for reducing construction noise from reaching nearby residential premises. Virtually all noise barriers have a large surface area for blocking or absorbing sound. In the outdoors, the wind load on such noise barrier structures can be very high occasionally, such as when there is a strong gust of wind. To prevent the noise barriers from being blown down, outdoor noise barriers are necessarily strong and heavy structures, constructed to withstand a wind load of 1 to 1.4kPa in general. A strong concrete foundation is usually required for tall noise barriers of 6m to 10m height. The erection and mobilization of such heavy noise barriers are energy and labour intensive, and have to be done using cranes and elevated platforms. Dismantling these heavy structures is also energy and labour intensive. Therefore, when a noise barrier is erected, it is typically intended to be a strong structure to remain standing next to the construction site for a significant period of time.
There is a growing demand for construction noise control in urban areas due to increasing public awareness on the effects of noise pollution. However, if the source of noise lasts for only a short period of time or moves every few hours or days, which is typical of construction work on underground utilities beneath road surface, it would not be practical to erect such noise barriers as they cannot move along with the source of noise. Moreover, there may be difficulty in obtaining permission to lay a concrete foundation in some places. Construction of a concrete foundation may also not be allowed in the day to avoid road congestion, and may be allowable only within a few limited hours at night. Therefore, it was desirable to provide a noise barrier which is relatively easy to erect, mobilize and dismantle, and which may be used as a temporary structure for a short period of time and which may be able to avoid damaging the existing ground to erect the noise barrier. EP14782785.1 proposes a noise barrier which is capable of manual construction. The noise barrier comprises a plurality of noise barrier panels mounted on a lightweight frame. Each noise barrier panel can be blown from a closed position into an open position to give passage to a strong gust of wind, which reduces the wind load on the noise barrier. Each noise barrier panel has a sleeve which is inserted with a mounting pole such that the noise barrier panel can be slid upwardly on the mounting pole. The workman uses every further noise barrier panel added to the mounting pole to push up noise barrier panels already mounted, eventually forming a column of noise barrier panels. However, it is difficult for the workman to slide a noise barrier panel upward as the sleeve tends to drag by pulling on the mounting pole. Furthermore, when the noise barrier panels are blown open, the workman has to manually push each noise barrier panel back into the closed position after the wind has died down, which is particularly cumbersome.
It is desirable to provide an improvement to such a noise barrier such that it is even more easily assembled and used.
STATEMENT OF INVENTION
In a first aspect, the invention proposes a noise barrier comprising at least one mounting pole, at least one noise barrier panel mounted on the at least one mounting pole, the at least one noise barrier panel comprising a sleeve through which the mounting pole is slidably inserted, characterized in that the sleeve is attached with two panel wings each extending in a different direction away from the mounting pole, each panel wing capable of moving about the panel wing’s attachment to the sleeve between a closed position for providing barrier to noise and an open position to allow passage of wind, and each panel wing capable of being moved from the closed position to the open position by the force of wind.
Therefore, embodiments of the invention may include a noise barrier panel which comprises panel wings placed about a central mounting sleeve. The panel wings are typically provided on opposite sides of the sleeve into a butterfly configuration. Being centrally inserted with the mounting pole allows the noise barrier panel to be evenly balanced on either side of the mounting pole. This allows the workman constructing the noise barrier to push the noise barrier panel up on the mounting pole more easily. The workman may place one hand on each panel wing to push evenly on opposite sides of the sleeve. In contrast, if the sleeve is provided with only one panel wing, the workman will have to push the noise barrier panel up with more difficulty as more friction is induced between one side of the sleeve and the mounting pole than the other side, causing a drag of the sleeve on the mounting pole.
Preferably, a smooth and rigid plastic material is used to construct the sleeve, such as polycarbonate. The smoothness of polycarbonate reduces friction between the mounting pole and the sleeve, compared to a case of the sleeve made entirely of fabric. Advantageously, use of a rigid material to construct the sleeve allows the workman to push on the sleeve instead of pushing on the panel wings, which require only one hand to do instead of two. This is possible because the centre of gravity of a noise barrier panel having two panel wing is aligned to the sleeve.
Preferably, the side of each panel wing distal from the sleeve is sufficiently rigid for being used to push up the same side of another panel wing placed above on the same pole. Typically, rigidity is provided by a rod placed within the side of the panel wing. This provides mechanical structure or stiffness in the panel wings.
More preferably, the upper edge of the side of each panel wing distal from the sleeve has a protruding member for penetrating a receptacle at the lower edge of the same side of another panel wing placed above on the same mounting pole. This provides the possibility of a column of panel wings to be integrated from separate panel wings on the same mounting pole. Manipulation of a whole column of panel wings between an open or closed position is possible by simply manipulating the lowest and most easily accessible panel wing.
Preferably, the side of each panel wing distal from the sleeve is lined with magnets, the magnets positioned to coincide with magnets in a proximate panel wing of an adjacent noise barrier panel mounted on an adjacent mounting pole. This allows the two panel wings to attach to each other magnetically into the closed position to prevent passage of sound. The strength of the magnetic attachment can be selected to be breakable by force of wind above a pre-determined threshold. Therefore, when wind above certain strength is blowing, the two panel wings can be thrown open to give passage to the wind. This reduces the wind load of the noise barrier, which allows the noise barrier to be constructed without need of a concrete foundation or use of a heavy frame or scaffolding for stability in strong wind. Optionally, the adjacent noise panel may be magnetically attractive with or without use of magnets, and may simply have magnetise-able metal parts.
Preferably, the panel wings on the mounting pole are integrated into an enlarged panel wing by a protruding member on the upper edge of a lower panel penetrating a receptacle in the lower edge of the same side of another panel wing placed above on the same pole. An integrated column of panel wings allows a workman to manipulate the entire column simply by moving the lower panel wings in the column, relieving the need of a pole or other extended devices to push on the topmost panel wing.
More preferably, the lower edge of the lowest panel wing on the mounting pole is secured to the lower edge of the proximate lowest panel wing on the adjacent mounting pole, the security between the two lower edges strong enough to withstand being blown apart by the afore-mentioned force of wind. This ensures that a column of panel wings always have a point of attachment to an adjacent column, which allows the magnets in the panel wings to close the two columns of panel wings sequentially and automatically, working as a magnetic zipper which closes magnetically instead of mechanically. That is, as each magnet in one column pulls itself closer to the adjacent column, another magnet in the first column is also brought closer to the adjacent column which strengthens the attraction between the two columns sequentially.
In a second aspect, the invention proposes a noise barrier panel suitable for mounting onto a mounting pole, comprising a sleeve configured to receive the insertion of the mounting pole, two panel wings attached to the sleeve such that the panel wings extending in different directions away from the sleeve. Therefore, the noise barrier panel can be provided separately from the mounting pole, which allows the noise barrier panel to be a consumable product made of lightweight material which tends to be more easily worn out.
Preferably, the side of each panel wing distal from the sleeve is sufficiently rigid for being used to push up the same side of another panel wing placed above on the same pole. Alternatively, the sleeve is sufficiently rigid for being used to push up the sleeve of another panel wing placed above on the same pole. Therefore, in some embodiments, the sleeve is constructed of a rigid plastic material or is lined with a rigid plastic material, such as polycarbonate.
Preferably, the upper edge of the side of each panel wing distal from the sleeve has a protruding member for penetrating a receptacle at the lower edge of the same side of another panel wing placed above on the same pole.
Preferably, the side of each panel wing distal from the sleeve is provided with magnets spaced apart along the side, the magnets positioned to coincide with magnets in a proximate panel wing of another noise barrier panel.
In a third aspect, the invention proposes a noise barrier comprising a noise barrier panel, the noise barrier panel having a side for closing against a support into a closed position for providing barrier to noise, the noise barrier panel capable of being moved from the closed position into an open position by force of wind, the side of the least one noise barrier panel provided with a plurality of magnets, each magnet being suitable for attaching to the support magnetically, characterized in that the plurality of magnets are mutually spaced apart such that when one magnet is moved by its magnetic attraction towards the adjacent support, another magnet is brought along into a position which strengthens the magnetic attraction between the other magnet and the adjacent support.
It is possible that the support is an adjacent mounting pole (for mounting adjacent an noise barrier panel) having magnetic counterparts corresponding to the plurality of magnets. Preferably, however, the support is an adjacent noise barrier panel having magnetic counterparts corresponding to the plurality of magnets.
Optionally, the noise barrier panel comprises of a plurality of separate smaller noise barrier panels arranged into a column on a mounting pole, the smaller noise barrier panels integrated by securing the upper edge of a lower smaller noise barrier panel to the corresponding lower edge of another smaller noise panel.
Preferably, each another smaller noise panel comprises two wing panels each extending away from the mounting pole in different directions, each wing panel having a side distal from the mounting pole, the above-mentioned ‘side of the least one noise barrier panel provided with a plurality of magnets’ being the distal side of at least one of the two wing panels. Accordingly, the support may be the proximate side of a wing panel of an adjacent column of separate smaller noise barrier panels, the proximate side of a wing panel having magnetic counter parts corresponding to the plurality of magnets.
In a fourth aspect, the invention proposes a method of installing a noise barrier comprising the steps of providing at least one mounting pole, providing a first noise barrier panel, mounting the first noise barrier panel slidably onto the at least one mounting pole, sliding the first noise barrier panel upwardly along the at least one mounting pole, characterized in that the at least one noise barrier panel comprises a sleeve through which the mounting pole is inserted, two panel wings attached to the sleeve such that the panel wings extending in different directions away from the mounting pole, and the step of sliding the first noise barrier panel upwardly along the at least one mounting pole comprises pushing upwardly the two panel wings to reduce likelihood of the sleeve dragging on the mounting pole.
Preferably, the method comprises the further step of providing a second noise barrier panel, mounting the second noise barrier panel onto the at least one mounting pole, sliding the second noise barrier panel on the at least one mounting pole, characterized in that the method comprises a further step of aligning the upper edge of the panel wing of the second noise barrier panel to the lower edge of the same side of the panel wing of the first noise barrier panel, and sliding the second noise barrier panel upwardly to push up the first noise barrier panel.
In a further aspect, the invention proposes a method of closing a noise panel against a support, comprising the steps of: providing a plurality of magnets lining a side of the noise panel, the magnets being positioned to be capable of magnetically attaching to the support to close the panel; bringing at least one of the plurality of magnets into magnetic attachment with the support, such that magnets neighbouring the at least one of the plurality of magnets are brought into proximity to the support; such that the proximity of the neighbouring magnets to the support is sufficient near the support to cause the neighbouring to move themselves to attach to the support and, in doing so, which bringing yet further neighbouring magnets brought into proximity to the support.
BRIEF DESCRIPTION OF DRAWINGS
It will be convenient to further describe the present invention with respect to the accompanying drawings that illustrate possible arrangements of the invention, in which like integers refer to like parts. Other embodiments of the invention are possible, and consequently the particularity of the accompanying drawings is not to be understood as superseding the generality of the preceding description of the invention.
Figure 1 shows a first embodiment, which is a noise barrier;
Figure 2 is an exploded view of a part of the embodiment of Figure 1;
Figure 3 shows two interleaving water barriers used in the embodiment of Figure 1;
Figure 4 shows an L-support used in the embodiment of Figure 1;
Figure 5 shows a connector plate in the embodiment of Figure 1;
Figure 6 shows the L-support being installed into the embodiment of Figure 1; Figure 7 shows a second L-support and a second connector plate used in the embodiment of Figure 1;
Figure 8 shows a spacer used in embodiment of Figure 1;
Figure 9 shows the spacer being installed into the embodiment of Figure 1; Figure 10 shows an anchor rod being installed into the embodiment of Figure 1; Figure 11 shows a mounting pole being installed into the embodiment of Figure 1;
Figure 12 shows an installation frame comprising mounting poles ready for being installed with noise barrier panels to provide the embodiment of Figure 1;
Figure 13 shows a noise barrier panel used in the embodiment of Figure 1;
Figure 14 shows an aluminium rod used in the noise barrier panel of Figure 13; Figure 15 is a closed up view of the noise barrier panel of Figure 13;
Figure 16 shows a noise barrier panel installed onto the frame of Figure 12; Figure 17 is closed up view of the noise barrier panel of Figure 16;
Figure 18 shows two noise barrier panels installed onto the frame of Figure 12; Figure 19 is a closed up view of two corners of the two noise barrier panels of Figure 18;
Figure 20 shows the embodiment of Figure 1 in operation; and
Figure 21 shows a variation of the embodiment of Figure 1, which uses noise barrier panels with only one panel wing.
DESCRIPTION OF EMBODIMENTS
Figure 1 shows a noise barrier 100 suitable for erection next to a construction site to shield the surroundings from noise emanating from the site. The noise barrier 100 can be assembled entirely by hand, without requiring use of heavy machinery and without requiring a heavy foundation to be laid.
The noise barrier 100 comprises two basic parts, namely, a mounting frame 1201 (see Figure 12) and columns of noise barrier panels 101. Preferably, the noise barrier panels 101 have such a predetermined dimension, and are made of such suitable materials, that each noise barrier panel 101 may be handled by just one or two men easily. The mounting frame 1201 comprises of a sequence of mounting poles 211 onto which a plurality of noise barrier panels 101 may be installed, producing a wall for absorbing or blocking noise. The mounting poles 211 are typically made of a strong and light material such as carbon fibre or aluminium. Each installed noise barrier panel 101 can be blown from a closed position into an open position to give passage to a strong gust of wind, which reduces the wind load on the noise barrier 100.
Figure 2 shows components of the mounting frame 1201. The broken arrows show how the components fit together to form a section of the mounting frame 1201, and as many of such sections may be connected together. There are two water barriers 201, a pair set of L-supports 203, two extension rods 205, two connector plates 207, an anchor pole 209, a mounting pole 211 and two spacers 213.
To commence assembly of the noise barrier 100, a base for the mounting frame 1201 is firstly prepared using at least two water barriers 201. Figure 3 shows two connected water barriers 201. Such water barriers 201 are used mainly as road blocks to direct traffic and are typically large, hollow, rectangular plastic blocks which have a wide base for stability. Each end of the plastic block is provided with a sequence of identical, connection rings 301. The connection rings 301 are spaced apart vertically and gaps 303 between the connection rings 301 are each about the thickness of a connection ring 301. However, the position of the sequence of connection rings 301 on one side of a water barrier 201 is removed by the thickness of one ring 301. Therefore, the connection rings 301 on one side of a water barrier 201 can fit into the gaps 303 between the connection rings 301 of the opposite side of an adjacent water barrier 201 in an interleaving format 305, not unlike fitting gear teeth.
On deployment, the hollow water barriers 201 are filled with water to immobilise them. Empty water barriers 201 are lightweight and easy to transport, whereas the heaviness of filled water barriers 201 provide a stable base for the noise barrier 100.
The L-supports 203 are added to provide further stability to the base in the event that the depth of the water barrier 201 does not provide sufficient stability. Two L-supports 203 are typically installed onto each water barrier, both of them at one end of the water barrier 201 but one of them by each face of the water barrier 201.
Figure 4 is a closed up view of an L-support 203 and a connector plate 207. The L shape of the L-support 203 is provided by the arrangement of two short square tubes and a rod holder 401. The rod holder 401 is a block made of riveted metal plates which serves as an elbow for holding the two short square tubes in the L shape arrangement. Within the rod holder 401 are defined two square conduits, one is oriented vertically and the other horizontally. One of the short square tubes 403 is inserted into and held by the vertical square conduit such that it may stand upright when assembled as part of noise barrier 100. The other short square tube 405 is inserted into the other square conduit such that it may lie horizontally on the ground when assembled as part of noise barrier 100. The alignment of the two square conduits dictates that the two short square tubes meet at a right angle. The right angle joint of the L-support 203 formed in this way concentrates stress applied onto the noise barrier 100 and hence the short square tubes act as reinforcement. A small space 407 is provided between the rod holder 401 and the lower end of the vertical short square tube 403. This space 407 allows the square hole 409 of the connector plate 207 to fit over the lower end of the vertical short square tube 403 without running into the rod holder 401.
The connector plate 207 has two square holes 409 and a circular hole 411. Figure 5 shows a connector plate 207 about to be inserted between the lowest interleaving pair of connection rings 301 between the two water barriers 201. The circular hole 411 is dimensioned to be able to align with the eye of the interleaved connection rings 301 when the connector plate 207 is inserted deep enough, whereas the square holes 409 in the connector plate 207 are each dimensioned to be able to fit over the vertical short square tube 403 of the L-support 203.
Figure 6 shows how an L-support 203 is secured to the interleaved connection rings 301. The lower end of the vertical square rod in the L-support 203 is inserted through the proximate square hole 409 of the connector plate 207. The square hole 409 is able to fit over the square rod because the small space 407 between the square rod and the rod holder 401 provide spatial allowance.
Figure 7 shows a second connector plate 207 which is also used in the noise barrier 100. The central circular hole 411 of the second connector plate 207 fits over the anchor pole 209, and the square holes 409 each fits over the top end of one of the two L-supports 203 on either side of a water barrier 201. In this way, the anchor pole 209 and each L-support 203 are connected by an upper connector plate 207 and a lower connector plate 207. The vertical distance between the two connector plates 207 reduces the possibility of misalignment between the L-supports 203 and the water barrier 201. The large area of the connector plates 207 absorbs some of the force exerted on the water barrier 201 which prevents the water barrier 201 from damage.
The fixture of the L-supports 203 to the interleaving connection rings 301 of the water barriers 201 provides a base extension for the noise barrier 100 which improves the prevention of the noise barrier 100 from tilting. Optionally, if yet greater stability is required, the horizontally laid short square tube 405 can be inserted with the base extension rod 205 (see Figure 2) for distribution of the weight of the noise barrier 100 over more ground. Preferably, the lower end of the vertical short square tube 403 is provided with a hole (not visible in the figures) into which the end of the base extension rod 205 can fit, which improves the integration of the base extension rod 205 to the L-support 203.
The face of the water barriers 201 have an opening 307, as shown in Figure 3, through which noise can travel. Therefore, to improve noise reduction efficiency, a spacer 213 is provided to cover the water barriers 201 and the L-supports 203. Figure 8 shows such a spacer 213, which is formed of an acoustic mat 803 draped over a beam 805. The beam 805 is separately shown in the lower part of Figure 8. The mat 803 is as wide as a water barrier, and the skirt of the mat 803 covers the water barrier 201 right down to the ground. The beam has two ends, each of which is provided with a ring 801 positioned and dimensioned to be capable of alignment with the connection rings 301 on the respective ends of a water barrier 201. The beam has a gap 807 in the middle along its length which allows access to an orifice (not illustrated) in the top of the water barrier 201 for filling the water barrier 201 with water. This gap 807 can be exposed simply by lifting the skirt. Figure 9 shows a spacer 213 being lowered over a water barrier 201.
Figure 10 illustrates how the anchor pole 209 is inserted into the eye of the interleaving connection rings 301, through the circular holes 411 of the two connector plates 207, and right down to the ground. In this way, the anchor pole 209 connects two water barriers 201. The illustration in Figure 10 does not show the connector plate 207 and the spacer 213 for simplicity. The arrows in Figure 2, however, show where the anchor pole 209 is meant to pin together the ring 801 on one end of a spacer 213, an upper connector plate 207, a lower connector plate 207, and the eye of the interleaving connection rings 301 of two adjacent water barriers 201.
Figure 11 shows a mounting pole 211 being placed over the anchor pole 209. The top part of the anchor pole 209 has a diameter suitable for insertion into the body of a mounting pole 211.
The assembled frame 1201 looks as shown in Figure 12. Each extended mounting pole 211 can be fitted with a column of noise barrier panels 101.
Optionally, the vertical short square tube 403 of each L-support 203 contains a mounting pole 211 adapter 413 (see Figure 4). The adapter 413 may be inserted with a second mounting pole 211 to lend strength to the mounting pole 211 inserted over the anchor pole 209, in which case the second mounting pole 211 is secured to the first one by tying or other mechanical means. A square collar on the adapter 413 guides the alignment of the adapter 413 in the vertical short square tube 403 and abuts a stop within the vertical short square tube 403 to determine the extent of entry into the vertical tube.
Figure 13 shows a noise barrier panel 101. The noise barrier panel 101 comprises a sleeve 1303 for sheathing over a mounting pole 211. There are two panel wings 1305 each attached to either side of the sleeve 1303. When laid flat, the panel wings 1305 extend from the sleeve 1303 in a butterfly format. Each panel wing 1305 is capable of independently flying in the wind by folding or rotating about the sleeve 1303 to allow passage of wind, which reduces the wind load on the noise barrier 100.
Each panel wing 1305 comprises a hollow pocket made of a flexible polymeric material such as PVC (polyvinylchloride) and filled with a noise absorbing, light weight material such as a cushion of polyester fibre or sponge. The two faces of the PVC pocket provide two layers of acoustic material. Such separate layers of acoustic material prevent noise transmission more efficiently than a single thick layer. The PVC used is lightweight enough to be managed entirely by hand, and a workman can push up several noise barrier panels 101 on a mounting pole 211 quite easily.
Figure 15 is the closed up view of the sleeve 1303. The sleeve 1303 has a slit 1501 which can be open up completely along its entire length. The sleeve 1303 open can be wrapped around a mounting pole 211 and then closed by a zipper provided along the lips of the slit 1501. Preferably, the sleeve 1303 is formed of two polycarbonate (PC) sheets. Each sheet is folded into the shape of a letter M. The two corners of one M shape PC sheet are connected to the corresponding corners of the other M shape PC sheet, defining an enclosure between the corners which becomes the sleeve 1303. Therefore, at least one pair of the connecting corners is held together by the zipper. The zipper should be strong enough to hold the sleeve 1303 together despite the weight of the panel wings 1305 and the intended wind load which the noise barrier 100 is designed to bear. The free ends of the letter M are fused to PVC sheets to construct the pockets of the panel wings 1305.
The far side of a panel wing 1305 away from the sleeve 1303 is inserted with an aluminium tube 1401 to give the panel wing 1305 rigidity.
The PC provides a smooth surface and this allows the sleeve 1303 to be moved up and down the mounting pole 211 easily. When the noise barrier panel 101 is mounted to the lower part of a mounting pole 211, at a height which a workman can reach easily, the noise barrier panel 101 can be pushed up on the mounting pole 211 manually. Figure 16 shows the first panel installed onto a mounting pole 211. Figure 17 is a closed up view of the sleeve 1303 of a noise barrier panel 101 inserted with a mounting pole 211. The noise barrier panel 101 can be slid up and down the mounting pole 211. As the panel wings 1305 are provided on both sides of the sleeve 1303, instead of only one panel wing 1305 provided on one side of the sleeve 1303, a workman can push on both panels wings with both his hands to raise the noise barrier panel 101. In this way, an even force may be applied to both sides of the sleeve 1303 to prevent the sleeve 1303 dragging on the mounting pole 211. A second noise barrier panel 101 can be attached to the mounting pole 211 in the same way below the first noise barrier panel 101. Figure 18 shows such a second noise barrier panel 101 installed on a mounting pole 211 after the first one. The first noise barrier panel 101 is pushed up to allow a second noise barrier panel 101 to be mounted onto the mounting pole 211 right below the first noise barrier panel 101. The panel wings 1305 of the second noise barrier panel 101 are attached to the corresponding panel wings 1305 of the first noise barrier panel 101. When pushing the lower noise barrier panel 101 up on the mounting pole 211, the aluminium tubes 1401 in the panel wings 1305 of the lower noise barrier panel 101 push up the aluminium tubes 1401 in the panel wings 1305 of the higher noise barrier panel 101. This slides both noise barrier panels 101 up on the mounting pole 211. Pushing the lower noise barrier panel 101 upwards pushes the first noise barrier panel 101 higher on the pole.
Figure 14 shows the aluminium tube 1401. The aluminium tube 1401 is formed of a long square tube 1403 and a circular tube 1405 inserted into the long square tube 1403. The circular tube typically has the same length as the long square tube 1403. However, the circular tube is not fully enclosed within the long square tube 1403. Instead, the circular tube extends out of the top of the long square tube 1403 as shown. Accordingly, in the bottom end of the long square tube 1403 is provided a small space that can be used as a receptacle to accommodate the extending circular tube of another aluminium tube 1401.
Figure 19 is a closed up view of two panel wings 1305 mounted on the same mounting pole 211 in the process of joining together to form an integrated column. The circular tube of an aluminium tube 1401 in a lower panel wing 1305 inserts into the square, lower end of an aluminium tube 1401 in a higher panel wing 1305. More noise barrier panels 101 are added to the mounting pole 211 and integrated in this way until the topmost noise barrier panel 101 reaches the top of the mounting pole 211. Eventually, a sufficient number of noise barrier panels 101 are attached to a mounting pole 211 forming an assembled column of noise barrier panels 101, providing a large, integrated noise barrier panel 101. When all the mounting poles 211 are each installed with a column of noise barrier panels 101, the configuration of the noise barrier 100 as shown in Figure 1 is produced. A workman may open or close an entire column of panel wings 1305 by moving the bottom-most panel wing 1305 in a column.
Preferably, magnets are provided on the inside of the aluminium tube 1401, along the length of the tube but spaced apart in pre-determined intervals. These magnets are able to attract correspondingly placed magnets in another aluminium tube 1401. In this way, the aluminium tube 1401 in the side of one panel wing 1305 is able to connect magnetically with the aluminium tube 1401 in the proximate panel wing 1305 of an adjacent noise barrier panel 101 into the closed position. The strength of the magnetic attraction between any two adjacent wings is selected to determine the maximum wind load of the noise barrier 100. A force of wind above the predetermined level will be able to break the attraction between the joined panel wings 1305, so that the panel wings 1305 will break apart from the closed position into the open position, to give passage to the wind. In other words, the strength of the magnets determines a threshold above which a force of wind throws the panel wings 1305 open. This reduces the wind load on the noise barrier 100 which relieves the need of a strong concrete foundation.
When the wind blowing the panel wings 1305 open have died, a workman may simply push the panel wings 1305 back into position by manipulating the bottom most panel wings 1305 on each mounting pole 211. The magnets lining the sides of the panel wings 1305 help to close the columns of panel wings 1305 from the bottom up, working as a magnetic zipper which closes magnetically instead of mechanically. As illustrated by arrows representing points of magnetic attraction provided along the sides of the leftmost pairs of open panel wings 1305 in Figure 20, when the lower part of the lowest panel wings 1305 are moved into mutual contact, the neighbouring magnets just higher up in both panel wings 1305 will be moved closer and are able to regain magnetic attraction between them. Eventually, the magnets between the two adjacent columns of panel wings 1305 close the columns up from the bottom progressively and sequentially. In some embodiments, the strength of the magnets nearer the bottom of the columns is stronger while the magnets at the top of the columns are weaker to create a magnetic gradient along the sides of the columns.
Preferably, the lower corners of the lowest panel wings 1305 of two adjacent columns are tied or secured to each other. The two adjacent columns of panel wings 1305 may be blown apart by wind except the tied corners. This creates a somewhat V-shape gap even if the two adjacent columns of panel wings 1305 are fully blown open, which is also illustrated in Figure 20. When the culpable gust of wind has died down, the tied corners allow the magnets immediately around the tied corners to attract one another to move the part of the panel wings 1305 in which they are placed into contact, and the two adjacent columns of panel wings 1305 close up from the bottom without need of the workman moving any panel wings 1305 at all.
The end-most columns 2001 of panel wings 1305 of the noise barrier 100 are fixed to the water barriers 201 since they do not have any further columns to attach to. Optionally, the end-most columns on either ends of the noise barrier 100 comprise noise barrier panels 101 which have only one panel wing 1305, which is arranged to extent towards the next noise barrier panel 101 away from the respective end of the noise barrier 100.
Figure 21 shows a variation of the embodiment, wherein the noise barrier panels 101 have only one panel wing 1305 instead of two. The panel wing 1305 is mounted to one side of the sleeve 1303. Panel wings 1305 on the same mounting pole 211 are integrated into a single column. Magnets in the sides of the panel wings 1305 can be attracted to magnets placed strategically on the adjacent mounting pole 211, so that the columns can close against the adjacent mounting pole 211, as illustrated by the arrows lining the side of the column of integrated panel wings 1305. The lower corner of the bottom-most noise barrier panel 101 in the column is secured to the bottom of the adjacent mounting pole 211. After a gust of wind which has blown the column into the open position has died, the magnets in sides of the panel wings 1305 close the column from the bottom up automatically.
Therefore, the embodiments comprises a noise barrier 100 comprising at least one mounting pole 211, at least one noise barrier panel mounted on the at least one mounting pole, the at least one noise barrier panel 101 comprising a sleeve 1303 through which the mounting pole 211 is slidably inserted, characterized in that the sleeve 1303 is attached with two panel wings 1305 each extending in a different direction away from the mounting pole 211, each panel wing 1305 capable of moving about the panel wing’s attachment to the sleeve 1303 between a closed position for providing barrier to noise and an open position to allow passage of wind, and each panel wing 1305 capable of being moved from the closed position to the open position by the force of wind.
Furthermore, the embodiments include a noise barrier panel 101 suitable for mounting onto a mounting pole 211, comprising a sleeve 1303 configured to receive the insertion of the mounting pole 211, two panel wings 1305 attached to the sleeve 1303 such that the panel wings 1305 extend in different directions away from the sleeve 1303.
Also, the embodiments include a method of closing a noise panel 100 against a support, comprising the steps of: providing a plurality of magnets lining a side of the noise panel, the magnets being positioned to be capable of magnetically attaching to the support to close the panel; bringing at least one of the plurality of magnets into magnetic attachment with the support, such that magnets neighbouring the at least one of the plurality of magnets are brought into proximity to the support; such that the proximity of the neighbouring magnets to the support is sufficient near the support to cause the neighbouring to move themselves to attach to the support and, in doing so, which bringing yet further neighbouring magnets brought into proximity to the support.
While there has been described in the foregoing description preferred embodiments of the present invention, it will be understood by those skilled in the technology concerned that many variations or modifications in details of design, construction or operation may be made without departing from the scope of the present invention as claimed. For example, in some embodiments, the noise barrier panels 101 on the same mounting column may not be integrated into a column. The noise barrier panels 101 remain separately movable by wind. In this case, the workman may still benefit from being able to push up a butterfly shape noise barrier panel 101 easily.
Other uses of the noise barrier is possible besides that which has been described, such as using it next to a loud outdoor music event to block the music from disturbing a quiet residential area.

Claims (23)

1. A noise barrier comprising at least one mounting pole; at least one noise barrier panel mounted on the at least one mounting pole; the at least one noise barrier panel comprising a sleeve through which the mounting pole is slidably inserted; characterized in that the sleeve is attached with two panel wings, each panel wing extending in a different direction away from the mounting pole; each panel wing is capable of moving about the panel wing’s attachment to the sleeve between a closed position for providing barrier to noise and an open position to allow passage of wind; and each panel wing capable of being moved from the closed position to the open position by the force of wind.
2. A noise barrier as claimed in claim 1 further characterized in that the side of each panel wing distal from the sleeve is sufficiently rigid for being used to push up the same side of another panel wing placed above on the same mounting pole.
3. A noise barrier as claimed in claim 2 further characterized in that the rigidity is provided by a rod placed within the side of the panel wing.
4. A noise barrier as claimed in claim 2 or claim 3 further characterized in that the upper edge of the side of each panel wing distal from the sleeve has a protruding member for penetrating a receptacle at the lower edge of the same side of another panel wing placed above on the same pole.
5. A noise barrier as claimed in any one of the above claims further characterized in that the side of each panel wing distal from the sleeve is lined with magnets; the magnets positioned to coincide with magnets in a proximate panel wing of an adjacent noise barrier panel mounted on an adjacent mounting pole.
6. A noise barrier as claimed in claim 5, further characterized in that the panel wings on the mounting pole are integrated into an enlarged panel wing by the protruding member of a lower panel penetrating the receptacle at the lower edge of the same side of another panel wing placed above on the same pole.
7. A noise barrier as claimed in claim 6, further characterized in that the lower edge of the lowest panel wing on the mounting pole is secured to the lower edge of the proximate lowest panel wing on the adjacent mounting pole; the security between the two lower edges strong enough to withstand being blown apart by the said force of wind.
8. A noise barrier panel suitable for mounting onto a mounting pole, comprising: a sleeve configured to receive the insertion of the mounting pole; two panel wings attached to the sleeve such that the panel wings extending in different directions away from the sleeve.
9. A noise barrier panel as claimed in claim 8 wherein the side of each panel wing distal from the sleeve is sufficiently rigid for being used to push up the same side of another panel wing placed above on the same pole.
10. A noise barrier panel as claimed in claim 8 wherein the sleeve is sufficiently rigid for being used to push up the sleeve of another panel wing placed above on the same pole.
11 .A noise barrier panel as claimed in claim 9 or claim 10 wherein the upper edge of the side of each panel wing distal from the sleeve has a protruding member for penetrating a receptacle at the lower edge of the same side of another panel wing placed above on the same pole.
12. A noise barrier panel as claimed in claim 11 wherein the side of each panel wing distal from the sleeve is lined with magnets; the magnets positioned to coincide with magnets in a proximate panel wing of another noise barrier panel.
13. A noise barrier comprising a noise barrier panel; the noise barrier panel having a side for closing against a support into a closed position for providing barrier to noise; the noise barrier panel capable of being moved from the closed position into an open position by force of wind; the side of the least one noise barrier panel provided with a plurality of magnets, each magnet being suitable for attaching to the support magnetically; characterized in that the plurality of magnets are spaced apart such that when one magnet is moved by its magnetic attraction towards the adjacent support, another magnet is brought along into a position which strengthens the magnetic attraction between the other magnet and the adjacent support.
14. A noise barrier as claimed in claim 13 wherein the lowest edge of the noise barrier panel is secured to the adjacent support, the security being strong enough to withstand being blown apart by the said force of wind.
15. A noise barrier as claimed in claim 13 or claim 14 wherein the support is an adjacent noise barrier panel having magnetic counter parts corresponding to the plurality of magnets.
16. A noise barrier as claimed in any one of claim 13 to claim 15 wherein the noise barrier panel comprises of a plurality of separate smaller noise barrier panels arranged into a column on a mounting pole; the smaller noise barrier panels integrated by securing the upper edge of a lower smaller noise barrier panel to the corresponding lower edge of another smaller noise panel.
17. A noise barrier as claimed in claim 16 wherein each another smaller noise panel comprises: two wing panels each extending away from the mounting pole in different directions; each wing panel having a side distal from the mounting pole; the side of the least one noise barrier panel provided with a plurality of magnets being said distal side of at least one of the two wing panels.
18. A noise barrier as claimed in anyone of claim 16 to claim 17, wherein the support is the proximate side of a wing panel of an adjacent column of separate smaller noise barrier panels; the proximate side of a wing panel having magnetic counter parts corresponding to the plurality of magnets.
19. A method of installing a noise barrier comprising the steps of: providing at least one mounting pole; providing a first noise barrier panel; mounting the first noise barrier panel slidably onto the at least one mounting pole; sliding the first noise barrier panel upwardly along the at least one mounting pole; characterized in that the at least one noise barrier panel comprises a sleeve through which the mounting pole is inserted; two panel wings attached to the sleeve such that the panel wings extending in different directions away from the mounting pole; and the step of sliding the first noise barrier panel upwardly along the at least one mounting pole comprises pushing upwardly the two panel wings to reduce likelihood of the sleeve dragging on the mounting pole.
20. A method of installing a noise barrier as claimed in claim 19, comprising the further step of: providing a second noise barrier panel; mounting the second noise barrier panel onto the at least one mounting pole; sliding the second noise barrier panel on the at least one mounting pole; characterized in that the method comprises a further step of: aligning the upper edge of the panel wing of the second noise barrier panel to the lower edge of the same side of the panel wing of the first noise barrier panel; and sliding the second noise barrier panel upwardly to push up the first noise barrier panel.
21. A method of closing a noise panel against a support, comprising the steps of: providing a plurality of magnets lining a side of the noise panel, the magnets being positioned to be capable of magnetically attaching to the support to close the panel; bringing at least one of the plurality of magnets into magnetic attachment with the support, such that magnets neighbouring the at least one of the plurality of magnets are brought into proximity to the support; such that the proximity of the neighbouring magnets to the support is sufficient near the support to cause the neighbouring to move themselves to attach to the support and, in doing so, which bringing yet further neighbouring magnets brought into proximity to the support.
22. A noise barrier substantially as described in the description or illustrated in the drawings.
23. A method of installing a noise barrier substantially as described in the description or illustrated in the drawings.
GB1610334.3A 2015-06-15 2016-06-14 Light weight construction site retractable noise barrier Active GB2543875B (en)

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