CN103046490B - Totally closed sound barrier - Google Patents
Totally closed sound barrier Download PDFInfo
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- CN103046490B CN103046490B CN201210589810.6A CN201210589810A CN103046490B CN 103046490 B CN103046490 B CN 103046490B CN 201210589810 A CN201210589810 A CN 201210589810A CN 103046490 B CN103046490 B CN 103046490B
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Abstract
The invention discloses a totally closed sound barrier, and belongs to the field of environmental protection and the field of noise control facilities. The totally closed sound barrier comprises a gate-type steel frame (1) and sound barrier plates (2) laid on the gate-type steel frame (1). The sound barrier plates (2) include sound insulation and absorption barrier plates (21) and transparent sound barrier plates (22), and the sound insulation and absorption barrier plates (21) and the transparent sound barrier plates (22) are mounted on the outer side of the gate-type steel frame (1) together. The transparent sound barrier plates realize lighting effects for the inside of the sound barrier, so that the sound barrier has excellent sound insulation capacity while natural lighting is realized, an external sound insulation effect of the integral sound barrier is guaranteed, matching of sound insulation factors of the transparent sound barrier plates and the sound insulation and absorption barrier plates is guaranteed, the totally closed sound barrier is excellent in impact resistance performance and wind load resistance performance, and high safety of the structure of the sound barrier is guaranteed.
Description
Technical field
The present invention relates to a kind of facility of field of Environment Protection noise abatement, particularly the totally enclosed sound barrier of one.
Background technology
The raising to dwelling environment noise pollution standard of the acceleration tendency polluted along with road noise and country; for alleviating the impact on surrounding enviroment of railway, speedway and town road; 11 departments of State Council such as national environmental protection portion, National Development and Reform Commission, the Department of Science and Technology combine issue " improving the instruction of town and country sound environment quality about the work of environmental enhancement noise abatement ", require to add big traffic, construction, industry, life four emphasis prevention and cure of pollution dynamics: at the road auxiliary construction noise barrier on both sides of the road of noise-sensitive structure concentrated area.
The sound barrier of known technology is generally upright board plug type sound barrier, sound barrier is arranged on road one or both sides, between sound barrier height 2 ~ 4 meters, the noise reduction of this sound barrier follows the transmission of sound wave, the principle of diffraction, after sound barrier, form leg-of-mutton sound shadow region, sound shadow region size and sound barrier height distance sound source distance etc. are relevant.The impact that upright sound barrier is subject to sound diffraction makes sound barrier noise reduction have to reduce significantly, and sound shadow region obviously reduces.Totally-enclosed sound barrier effectively can solve the problem that sound diffraction affects noise reduction.
Chinese patent literature CN102182152A discloses a kind of Full-shadow type acoustic barrier for city express lane and tunnel face, it has the gate-type arc-shaped steel bow member being arranged on road surface upper space, and connect the rigid tie bar of adjacent each bow member and the sound barrier main frame of cross support bar formation, and purlin is configured on main frame, simultaneously to be arranged on purlin on main frame for supporting, the symmetrical both sides to the left and right along sound barrier axis place are until anti-collision wall contact surface that road surface is arranged, interval arranges sound absorber, ventilation smoke exhaust portion, sound absorber, daylighting portion, sound absorber and daylighting portion, form thus road is formed totally-enclosed or semiclosed, the Full-shadow type acoustic barrier structure of direct sound can be excluded completely.Inventor is by analyzing patent document CN102182152A, and it exists following technological deficiency.
1) in documents, sound absorption material is the string of spraying, and it exposes in atmosphere, and the dust in air, the particle of vehicle exhaust can be adsorbed onto on sound absorption material, affect the acoustically effective that simultaneously can cause attractive in appearance and decline.
2) the daylighting portion adopted in above-mentioned patent document is common plane skylight, and it is poor-performing in sound insulation and sound absorption, is greater than 10% of path area, will certainly affects whole defening effect because this area occupies.
3) in above-mentioned document, on the top of sound barrier, unlatching has ventilation smoke exhaust portion, this area is greater than 5% of path area, by upwardly opening ventilation elongated hole in road driving side, then baffle plate for keeping off the rain is set on the top of ventilation elongated hole, it relies on natural ventilation system to be discharged by the flue dust inside sound barrier, if wind direction offsets, in highway communication, vehicle smoke evacuation can be gathered in sound barrier in a large number, is difficult to be discharged outside sound barrier; Simultaneously, this ventilation orifice is also the outlet that inside sound barrier, sound leaks, weaken the anti-acoustic capability of sound barrier further, the ventilation opening of more than 5% is arranged at top, can not calculate to do real totally-enclosed, and top portion ventilation mouth has noise direct projection sensitive spot, or noise passes through top portion ventilation mouth diffraction to sensitive spot, cause the overall sound insulation factor of sound barrier to decline, by theoretical analysis and calculation, the opening of 5% can make overall sound insulation factor more than the decline 10dB of sound barrier; Meanwhile, the rainy day can rain waft into, cause road surface slippery situation, affect traffic safety.
Summary of the invention
In order to solve the problem of prior art, improving the noise reduction capability of sound barrier, the invention provides a kind of totally-enclosed sound barrier.
Described technical scheme is as follows:
A kind of totally-enclosed sound barrier, comprise steel portal frame and be layed in the sound barrier panel on described steel portal frame, sound barrier panel comprises every absorbent lined barrier board and transparent type sound barrier panel, the described outside being installed on described steel portal frame every absorbent lined barrier board together with described transparent type sound barrier panel.
Described steel portal frame is provided with multiple ventilation opening, and each described ventilation opening place all connects a ventilator, and described ventilator is arranged along the interval, direction, axis of described steel portal frame, for being discharged by the foul atmosphere inside described steel portal frame.
Described ventilator comprises a ventilation silencer, and the air intake of ventilation silencer is connected with described ventilation opening.
Described ventilator also comprises an exhaust fan, and described exhaust fan is arranged between described ventilation silencer and described ventilation opening, and the air intake of described exhaust fan is connected with described ventilation opening, and its air outlet is connected with described ventilation silencer.
Described transparent type sound barrier panel is one or more in acrylic board, polycarbonate plate or doubling glass, and its periphery is provided with frame and supports or press strip, and described transparent type sound barrier panel is supported by described frame or press strip is fixed on the outside of described steel portal frame.
Describedly to be made up of the metal sheet that insulates against sound, sound absorption metal sheet and connection bracket or framework every absorbent lined barrier board, the both sides of described connection bracket or framework are connected with described sound insulation metal sheet, the metal sheet that absorbs sound respectively, and described sound absorption metal sheet is arranged near the lateral surface of described steel portal frame.
Described sound insulation metal sheet comprises the first sound insulation metal sheet and the second sound insulation metal sheet that be arranged in parallel, described second sound insulation metal sheet is between described first sound insulation metal sheet and sound absorption metal sheet, it is fixed to one another connection by described connection bracket or framework, and described first sound insulation metal sheet and second insulates against sound between metal sheet and forms a cavity.
A kind of sound absorption material in glass wool, rock wool or foamed aluminium is filled with in the cavity that described sound absorption metal sheet and described sound insulation metal sheet are formed.
Described sound absorption metal sheet is the combination of one or more in perforated aluminum alloy panel, steel perforated plate and foamed aluminium board.
Described steel portal frame is made up of steel post, back timber and the purlin for connecting each described steel post and back timber, and it is skewed that described back timber is arc-shaped or straight line; Described steel post and described back timber are formed in one structure or be formed by connecting by flange.
The beneficial effect that technical scheme provided by the present invention is brought is:
A. sound barrier provided by the present invention is totally-enclosed sound barrier, sound shadow region realizes all standing, noise reduction scope is wide, noise reduction capability is strong, it is provided with ventilator at top portion ventilation mouth place, stop noise completely to be gone directly sensitive spot by ventilation opening, avoided noise simultaneously and cause the overall sound insulation factor of sound barrier to reduce by ventilation opening diffraction.
B. the present invention adopts transparent sound barrier panel to carry out daylighting to sound barrier inside, makes it while natural lighting, also have good sound-insulation capability, thus ensures the external defening effect of whole sound barrier; The transparent sound barrier panel that the present invention preferably adopts is acrylic board, polycarbonate plate or doubling glass, fully ensures that sound barrier internal light is sufficient, ensures the visual field that driver is good; Also there is good sound insulation property simultaneously, transparent sound barrier panel and mating in absorbent lined barrier board sound insulation factor can be ensured; Also there is excellent shock resistance, resisting wind press capacity, ensure the safety that noise barrier structure has had.
C. for the totally-enclosed sound barrier that length is longer, particularly road sound barrier, Vehicular exhaust can cause inner air Quality Down, inner for sound barrier foul atmosphere can rely on natural wind to discharge or force to discharge by the present invention after arranging ventilator, owing to being provided with ventilation silencer in ventilator, ventilator, while being arranged by foul atmosphere, also avoid leaking of noise outward, really achieves the dust control and noise absorption function of totally-enclosed sound barrier.
D. sound barrier panel length of the present invention does not limit by steel post spacing, can cross over multiple column, and after purlin anatomical connectivity, sound barrier panel forms stable structure together with steel portal frame, increases overall Wind-Pressure Resistance and the stability of sound barrier.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the first example structure schematic diagram provided by the present invention;
Fig. 2 is the second example structure schematic diagram provided by the present invention;
Fig. 3 is the third example structure schematic diagram provided by the present invention;
Fig. 4 is the steel portal frame structural representation of the first form of structure provided by the present invention;
Fig. 5 is the steel portal frame structural representation of the second form of structure provided by the present invention;
Fig. 6 is a kind of mounting structure figure of the transparent type sound barrier panel in Fig. 1;
Fig. 7 is the similar alternative arrangements figure of the transparent type sound barrier panel in Fig. 1;
Fig. 8 is a kind of structural representation of sound barrier panel provided by the present invention;
Fig. 9 is the another kind of structural representation of sound barrier panel provided by the present invention;
Figure 10 is the structural representation being filled with the sound barrier panel of sound absorption material provided by the present invention.
In figure:
1. steel portal frame, 11. steel posts, 12. back timbers, 13. purlins; 2. sound barrier panel, 21. every absorbent lined barrier board;
211. sound insulation metal sheets, 2111. first sound insulation metal sheets, 2112. second sound insulation metal sheets, 212. sound absorption metal sheets,
213. connection brackets or framework, 22. transparent type sound barrier panels; 3. ventilation opening; 4. ventilator, 41. exhaust fans, 42. ventilation silencers; 5. frame supports; 6. press strip; 7. sound absorption material; 8. flange.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Fig. 1 structure, the totally-enclosed sound barrier of one provided by the present invention, comprise steel portal frame 1 and be layed in the sound barrier panel 2 on steel portal frame 1, sound barrier panel 2 comprises every absorbent lined barrier board 21 and transparent type sound barrier panel 22, is installed on the outside of steel portal frame 1 every absorbent lined barrier board 21 together with transparent type sound barrier panel 22.
The totally-enclosed sound barrier shorter for length can not offer ventilation opening on steel portal frame 1, and the convection current wind of sound barrier import and outlet can meet inner air circulation requirement.The totally-enclosed sound barrier longer for length can offer multiple ventilation opening 3 on steel portal frame 1, it is arranged at the top of steel portal frame 1 and the interval, direction, axis along steel portal frame is arranged, then ventilator is set on each ventilation opening 3, ventilator can be natural ventilator, namely a ventilation silencer 42 is only set, also can be the ventilator of power ventilation device or other type, be mainly used in the foul atmosphere be positioned at inside steel portal frame 1 to discharge.
In order to strengthen ventilation effect, ventilator 4 preferably adopts power ventilation device, when not needing dynamic ventilation, natural ventilation can be made use, here power ventilation device comprises exhaust fan 41 and ventilation silencer 42, the air intake of exhaust fan 41 is connected with ventilation opening 3, and its air outlet is connected with ventilation silencer 42, as shown in Figures 2 and 3.Transparent type sound barrier panel 22 in Fig. 2 is arranged at the top of steel portal frame 1, and is symmetricly set in the both sides of steel portal frame 1 axis, also can be arranged at other position, and as shown in Figure 3, transparent type sound barrier panel 22 is arranged at the facade section of steel portal frame 1.Here transparent type sound barrier panel 22 is preferably acrylic board, polycarbonate plate or doubling glass, its periphery is provided with frame and supports 5 or press strip 6, as shown in Figure 6 and Figure 7, transparent type sound barrier panel 22 is fixed on the outside of steel portal frame 1 by frame support 5 or press strip 6.
Wherein every absorbent lined barrier board 21 as shown in Figure 8, be made up of sound insulation metal sheet 211, sound absorption metal sheet 212 and connection bracket or framework 213 every absorbent lined barrier board 21, the both sides of connection bracket or framework 213 are connected with sound insulation metal sheet 211, the metal sheet 212 that absorbs sound respectively, and sound absorption metal sheet 212 is arranged near the lateral surface of steel portal frame 1.The metal sheet 212 that wherein absorbs sound is the combination of one or more in perforated aluminum alloy panel, steel perforated plate and foamed aluminium board, here preferred perforated aluminum alloy panel.
Also sound insulation metal sheet 211 can be arranged the structure of multilayer, as shown in Figure 9, sound insulation metal sheet 211 comprises the first sound insulation metal sheet 2111 and the second sound insulation metal sheet 2112 be arranged in parallel, second sound insulation metal sheet 2112 is positioned between the first sound insulation metal sheet (2111) and sound absorption metal sheet 212, it is fixed to one another connection by connection bracket or framework 213, and the first sound insulation metal sheet 2111 and second insulates against sound between metal sheet 2112 and forms a cavity.Multilayer sound insulation metal plate structure can improve the ability of the sound insulation and noise reducing of sound barrier further.
In order to strengthen the defening effect of sound barrier further, as shown in Figure 10, a kind of sound absorption material 7 in glass wool, rock wool or foamed aluminium is filled with in the gap that sound absorption metal sheet 212 and sound insulation metal sheet 211 are formed.
As 4 and Fig. 5 each provide the structure of two kinds of forms, steel portal frame 1 is made up of steel post 11, back timber 12 and the purlin 13 for connecting each steel post 11 and back timber 12, back timber 12 in arc-shaped or straight line skewed.
Steel post in Fig. 4 11 and back timber 12 are formed in one structure, and the steel post 11 in Fig. 5 is formed by connecting by flange 8 with back timber 12.Totally enclosed type sound barrier gate-type steel post or back timber generally adopt H profile steel welding processing to form, and the purlin of sound barrier can select steel pipe or the steel beam column such as H profile steel, channel-section steel.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (1)
1. a totally-enclosed sound barrier, comprise steel portal frame (1) and be layed in the sound barrier panel (2) on described steel portal frame (1), it is characterized in that, sound barrier panel (2) comprises every absorbent lined barrier board (21) and transparent type sound barrier panel (22), the described outside being installed on described steel portal frame (1) every absorbent lined barrier board (21) together with described transparent type sound barrier panel (22); Describedly to be made up of sound insulation metal sheet (211), sound absorption metal sheet (212) and connection bracket or framework (213) every absorbent lined barrier board (21), the both sides of described connection bracket or framework (213) are connected with described sound insulation metal sheet (211), the metal sheet (212) that absorbs sound respectively, and described sound absorption metal sheet (212) is arranged near the lateral surface of described steel portal frame (1);
Described sound insulation metal sheet (211) comprises the first sound insulation metal sheet (2111) and the second sound insulation metal sheet (2112) that be arranged in parallel, described second sound insulation metal sheet (2112) is positioned between described first sound insulation metal sheet (2111) and sound absorption metal sheet (212), it is fixed to one another connection by described connection bracket or framework (213), and described first sound insulation metal sheet (2111) and second is insulated against sound between metal sheet (2112) and formed a cavity;
Described steel portal frame (1) is provided with multiple ventilation opening (3), each described ventilation opening (3) place all connects a ventilator (4), described ventilator (4) is arranged along the interval, direction, axis of described steel portal frame, for being discharged by the foul atmosphere of described steel portal frame (1) inner side;
Described transparent type sound barrier panel (22) is acrylic board, one or more in polycarbonate plate or doubling glass, its periphery is provided with frame and supports (5) or press strip (6), and described transparent type sound barrier panel (22) supports by described frame the outside that (5) or press strip (6) are fixed on described steel portal frame (1);
A kind of sound absorption material (7) in glass wool, rock wool or foamed aluminium is filled with in the cavity that described sound absorption metal sheet (212) and described sound insulation metal sheet (211) are formed;
Described sound absorption metal sheet (212) is perforated aluminum alloy panel, the combination of one or more in steel perforated plate and foamed aluminium board;
Described ventilator (4) comprises a ventilation silencer (42) and exhaust fan (41), the air intake of ventilation silencer (42) is connected with described ventilation opening (3), described exhaust fan (41) is arranged between described ventilation silencer (42) and described ventilation opening (3), the air intake of described exhaust fan (41) is connected with described ventilation opening (3), and its air outlet is connected with described ventilation silencer (42);
Described steel portal frame (1) is made up of steel post (11), back timber (12) and the purlin (13) for connecting each described steel post (11) and back timber (12), described back timber (12) in arc-shaped or straight line skewed; Described steel post (11) and described back timber (12) are formed in one structure or be formed by connecting by flange (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210589810.6A CN103046490B (en) | 2012-12-28 | 2012-12-28 | Totally closed sound barrier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210589810.6A CN103046490B (en) | 2012-12-28 | 2012-12-28 | Totally closed sound barrier |
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| CN103046490A CN103046490A (en) | 2013-04-17 |
| CN103046490B true CN103046490B (en) | 2015-06-17 |
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