CN108691278B - Water-permeable sound-absorbing and insulating plate structure suitable for bridge - Google Patents
Water-permeable sound-absorbing and insulating plate structure suitable for bridge Download PDFInfo
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- CN108691278B CN108691278B CN201710225428.XA CN201710225428A CN108691278B CN 108691278 B CN108691278 B CN 108691278B CN 201710225428 A CN201710225428 A CN 201710225428A CN 108691278 B CN108691278 B CN 108691278B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 48
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 229910000838 Al alloy Inorganic materials 0.000 claims description 15
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 15
- 239000008397 galvanized steel Substances 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
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- 229920000647 polyepoxide Polymers 0.000 claims description 8
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- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims description 4
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- 230000002708 enhancing effect Effects 0.000 claims description 4
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims description 4
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
- E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
- E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
- E01F8/0017—Plate-like elements
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/60—Planning or developing urban green infrastructure
Abstract
The invention relates to the field of noise pollution treatment and discloses a water-permeable sound-absorbing and insulating plate structure suitable for a bridge, wherein the bridge is provided with a baffle plate (3), a sound barrier (4) is arranged above the baffle plate (3), a gap (c) is formed between the outer side of the bottom of the sound barrier (4) and the inner side of the top of the baffle plate (3), the water-permeable sound-absorbing and insulating plate structure comprises a water-permeable sound-absorbing plate (1) and a water-permeable sound-insulating plate (2), the water-permeable sound-insulating plate (2) is used for sealing the gap (c), and the water-permeable sound-absorbing plate (1) is arranged on one inward side of the water-permeable sound-insulating plate (2) and is positioned between a bridge pavement (5) and the bottom of the sound barrier (4). The permeable sound absorbing and insulating plate not only reduces the reverberation problem of train and automobile noise in the bridge, but also can guide rainwater to the drainage system of the bridge deck for uniform discharge, so that the appearance of the bridge body is attractive, and the occurrence of flow marks of the bridge body and the breeding of algae plants are effectively stopped.
Description
Technical Field
The invention relates to the field of noise pollution control, in particular to a water permeable sound absorption and insulation plate structure suitable for bridges.
Background
Along with the increasing frequency of social and economic activities of cities in China and the proliferation of urban population and private cars, the rapid increase of urban traffic demands is induced, and large traffic projects such as overpasses, viaducts and the like are continuously generated in urban traffic systems. The overpasses and viaducts greatly relieve traffic pressure, but the noise problems caused by the overpasses and the viaducts are increasingly prominent.
In order to solve the noise problem, the traditional method is to arrange a sound barrier with the height of 2-3m on the upper edge of a viaduct baffle. However, the sound barrier does not perform noise treatment at the inner side of the retaining wall and the lower part of the sound barrier at present, but only performs sound insulation blocking at the gap between the retaining wall and the sound barrier. Although the plugging method plays a certain role in noise problem management, in the use process, we find some problems: firstly, a plurality of water flow marks with different sizes appear on the wall of the viaduct, and a plurality of algae plants grow on the edges of the water flow marks, so that the appearance of the bridge is seriously affected; and second, the reverberation noise in the bridge is larger.
Disclosure of Invention
Aiming at the gap in the background technology, the invention provides a water-permeable sound-absorbing and sound-insulating structure which replaces the current blocking method to solve the problem of gap sound-insulating blocking between a sound barrier and a baffle.
The technical scheme adopted for solving the technical problems is as follows: the bridge is provided with a baffle, the sound barrier is arranged above the baffle, a gap is formed between the outer side of the bottom of the sound barrier and the inner side of the top of the baffle, the water-permeable sound-absorbing and-insulating plate comprises a water-permeable sound-absorbing plate and a water-permeable sound-insulating plate, the water-permeable sound-insulating plate is used for sealing the gap, and the water-permeable sound-absorbing plate is arranged on one side of the water-permeable sound-insulating plate which is inwards and is positioned between a bridge pavement and the bottom of the sound barrier.
Furthermore, the permeable and sound-insulating plate is in an inclined state, one side of the permeable and sound-insulating plate is clung to the inner side of the baffle, the other side of the permeable and sound-insulating plate is clung to the bottom of the sound barrier, and the gap is sealed, and the sealed joint is sealed by neutral silicone structural adhesive; the water permeable and sound absorbing plate is arranged in a vertical state, the top and the bottom of the water permeable and sound absorbing plate are respectively connected with the bottom of the sound barrier and the bridge pavement, and the sound facing surface is basically flush with the sound facing surface of the sound barrier.
The outer side and the inner side are referred to by taking an automobile running on a bridge as a sound source, the side facing the sound source is the inner layer, and the side facing away from the sound source is the outer side.
Furthermore, the water-permeable sound-absorbing plate and the water-permeable sound-insulating plate are both particle sound-absorbing plates, the particle sound-absorbing plates are formed by combining and forming film-coated particles, the film-coated particles are formed by uniformly covering the outer surfaces of the sound-absorbing particles with a layer of adhesive, and the water permeability coefficient of the particle sound-absorbing plates is more than or equal to 1.5x10 -2 cm/s. The particle sound absorbing plate can be manufactured according to the preparation method of the particle sound absorbing plate disclosed in Chinese patent number ZL201410347735.1, sound absorbing gaps are arranged among particles of the particle sound absorbing plate, and the sound absorbing gaps can be communicated with the front and the back of the sound absorbing plate, of course, the sound absorbing plate is made of the particle sound absorbing plateThe gap also has water permeability.
Further, the thickness of the permeable sound insulation plate is 15-30mm; the mesh number of the sound absorption particles adopted by the water permeable and sound insulating plate is 40-60 meshes, and the sound absorption particles are selected from one or two of aeolian sand and quartz sand; the adhesive used for the water-permeable sound-insulating plate is selected from epoxy resin, phenolic resin, urea-formaldehyde resin or furfuryl alcohol resin.
The further scheme needs to be described as follows: the water-permeable and sound-insulating plate is prepared based on the invention patent with the Chinese patent number ZL201410347735.1, but the patent discloses a particle sound-absorbing plate and a preparation scheme thereof, wherein the sound-absorbing particles comprise skeleton particles and filling particles, the water-permeable and sound-insulating plate has better water permeability, the sound-absorbing particles only adopt one type of particles to enlarge gaps among the particles, the particles are specifically understood to be only the skeleton particles, the filling particles with larger particle size difference are not added in the particles, the gaps among the particles after improvement are more abundant, and the water permeability of the gaps can be improved compared with the particle sound-absorbing plate directly adopting the patent. When the mesh number of the sound absorption particles of the water-permeable sound-insulating plate is 40-60 meshes, the particle sound-absorbing plate formed by polymerizing the sound absorption particles has good sound-insulating performance, and meanwhile, the size of gaps among the particles also ensures good water-permeable performance.
Furthermore, U-shaped metal bordures B are arranged at the edges of the periphery of the water-permeable sound-insulating plate, the thickness of the U-shaped metal bordures B is 0.5-1.2mm, and the U-shaped metal bordures B are made of galvanized steel plates, stainless steel or aluminum alloy; the U-shaped metal bordures B at both ends are fixedly provided with mounting plates which are used for enabling the permeable and sound-proof plates to be fixed on the foundation piers beside the bridge road, the thickness of the mounting plates is 2-4mm, and the mounting plates are made of galvanized steel plates, stainless steel or aluminum alloy.
Further, the thickness of the water permeable and sound absorbing plate is 8-15mm; the mesh number of the sound absorbing particles adopted by the water permeable sound absorbing plate is 20-40 meshes, and the sound absorbing particles are selected from one or two of aeolian sand and quartz sand; the adhesive used for the water-permeable sound-absorbing plate is selected from epoxy resin, phenolic resin, urea-formaldehyde resin or furfuryl alcohol resin.
Also, in the above further scheme, it should be noted that: the water-permeable sound-absorbing plate is also based on the invention patent of Chinese patent No. ZL201410347735.1, but is improved, the patent discloses a particle sound-absorbing plate and a preparation method thereof, wherein sound-absorbing particles comprise skeleton particles and filling particles, the further proposal is to ensure that the water-permeable sound-absorbing plate has better water permeability, the sound-absorbing particles also adopt only one type of particles so as to enlarge gaps among the particles, and the method can be concretely understood to only adopt the skeleton particles of the patent, and the filling particles with larger particle size difference are not added into the particles, so that the water permeability of the gaps is improved. When the mesh number of the sound absorption particles of the water-permeable sound absorption plate is 20-40 meshes, the particle sound absorption plate formed by polymerizing the sound absorption particles has good sound absorption performance, and meanwhile, the size of gaps among the particles also ensures good water permeability.
Further, U-shaped metal wrapping edges A are arranged at the peripheral edges of the water-permeable and sound-absorbing plate, the thickness of the U-shaped metal wrapping edges A is 0.5-1.2mm, and the U-shaped metal wrapping edges A are made of galvanized steel plates, stainless steel or aluminum alloy; the back sound surface of the water-permeable sound-absorbing plate is provided with a supporting framework for enhancing the rigidity of the water-permeable sound-absorbing plate, each single water-permeable sound-absorbing plate is provided with at least two supporting frameworks, the thickness of each supporting framework is 1.2-3mm, the cross section of each supporting framework is L-shaped or groove-shaped, two ends of each supporting framework are fixed on a foundation pier beside a bridge road through end plates by expansion bolts, the thickness of each end plate is 2-4mm, and the supporting frameworks and the end plates are made of galvanized steel plates, stainless steel or aluminum alloy; the two ends of the water permeable sound absorbing plate are provided with angle-shaped pressing strips for fixing the plate body, the cross section of each angle-shaped pressing strip is L-shaped, the thickness of each angle-shaped pressing strip is 2-4mm, the angle-shaped pressing strip is made of galvanized steel plates, stainless steel or aluminum alloy, and the angle-shaped pressing strips are also fixed on foundation piers beside a bridge road through expansion bolts.
Further, the distance between the water permeable and sound absorbing plate and the baffle plate is 40-200mm. Therefore, a resonant cavity is formed between the water-permeable sound-absorbing plate and the baffle plate, the depth (namely the distance) of the resonant cavity can be adjusted according to the noise characteristics of the noise source, so that the resonant cavity meets the sound absorption characteristics, and the depth is preferably 40-200mm.
The bridge includes various overhead road sections, namely road sections such as river crossing, lake crossing, ditch crossing and the like, overpasses, viaducts, overpasses and the like.
According to the invention, the water permeable and sound absorbing plate can be matched with the sound barrier to absorb and reduce noise of trains and automobiles in the bridge; the permeable and sound-insulating plate not only can play a role in insulating sound for gaps between the sound barrier and the baffle, but also has good water permeability, and rainwater can pass through the plate body, so that water flow traces and long-term accumulation of rainwater on algae are avoided.
The beneficial effects of the invention are as follows: the water-permeable sound-absorbing and insulating plate not only reduces the reverberation problem of train and automobile noise in the bridge, but also can guide rainwater to the drainage system of the bridge deck for uniform discharge, so that the appearance of the bridge deck is attractive, and the occurrence of bridge flow marks is effectively stopped (the path through which the rainwater flows is that a gap between the sound barrier and the bridge baffle firstly vertically passes through the water-permeable sound-insulating plate to reach the edge of the bridge pavement, then transversely passes through the water-permeable sound-absorbing plate and finally reaches the drainage system of the bridge deck).
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a water permeable and sound insulating sheet of the present invention;
FIG. 3 is a schematic view of a water permeable and sound absorbing panel of the present invention;
FIG. 4 is a schematic illustration of a water permeable acoustical panel support frame;
marked in the figure as: 1-water-permeable sound-absorbing plate, 2-water-permeable sound-insulating plate, 3-baffle, 4-sound barrier, 5-bridge pavement, 6-foundation pier, 7-H-shaped upright post steel, 11-U-shaped metal edge A, 12-supporting framework, 13-end plate, 14-angle-shaped pressing strip, 21-U-shaped metal edge B, 22-mounting sheet, c-gap and t-spacing.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but embodiments of the present invention are not limited thereto.
Generally, sound barriers are installed at both sides of bridge roads in urban areas to mitigate the influence of noise on surrounding residents. When the bridge is constructed, baffles 3 are arranged at two sides of a road, sound barriers 4 are arranged above the baffles 3, two sides of the sound barriers 4 are fixed through H-shaped upright posts 7, and the H-shaped upright posts 7 are arranged on foundation piers 6 (usually H-shaped steel upright post foundation piers) at the bottom of the foundation piers. At present, the installation of the sound barrier is generally lagged relative to the construction of a bridge, most of the sound barrier is installed at the later stage of the construction of a bridge road, the width of the baffle plate 3 is limited, the sound barrier 4 is usually staggered with the top of the baffle plate 4 after being installed, a gap c is reserved between the sound barrier 4 and the baffle plate, and the water-permeable sound-absorbing sound-insulating structure is designed aiming at the defect (the gap c) after the installation.
Example 1:
as shown in fig. 1, 2, 3 and 4, the structure of the water-permeable sound-absorbing and insulating plate suitable for the bridge comprises a water-permeable sound-absorbing plate 1 and a water-permeable sound-insulating plate 2.
The water-permeable sound-insulating plate 2 is in an inclined state, one side of the water-permeable sound-insulating plate is clung to the inner side of the baffle 3, the other side of the water-permeable sound-insulating plate is clung to the bottom of the sound barrier 4, the gap c is sealed, and the sealed joint is sealed by neutral silicone structural adhesive; the water permeable and sound insulating plate 1 is vertically arranged on one inward side of the water permeable and sound insulating plate 2, the top and the bottom of the water permeable and sound insulating plate are respectively connected with the bottom of the sound barrier 4 and the bridge pavement 5, and the sound facing surface is basically flush with the sound facing surface of the sound barrier 4.
The water-permeable sound-absorbing plate 1 and the water-permeable sound-insulating plate 2 are both particle sound-absorbing plates, the particle sound-absorbing plates are formed by combining and forming coated particles, and the coated particles are formed by uniformly coating a layer of adhesive on the outer surfaces of the sound-absorbing particles. The particulate sound absorbing plate is designed based on the particulate sound absorbing plate disclosed in Chinese patent No. ZL201410347735.1, but the particulate sound absorbing plate is improved, the particulate sound absorbing plate and the preparation scheme thereof are disclosed, wherein sound absorbing particles comprise skeleton particles and filling particles, and the improvement of the embodiment is that the sound absorbing particles only adopt one type of particles, namely the skeleton particles, and the filling particles with larger particle size difference are not added into the particles. In addition, the permeability coefficient of the particulate acoustic panel is required to be not lower than 1.5X10 -2 cm/s。
The thickness of the water-permeable and sound-insulating plate 2 is 15mm, the mesh number of sound-absorbing particles adopted by the water-permeable and sound-insulating plate 2 is 60 meshes, the sound-absorbing particles are selected from aeolian sand, and the binder adopted by the water-permeable and sound-insulating plate 2 is selected from epoxy resin. The edges of the periphery of the water-permeable sound-insulating plate 2 are provided with U-shaped metal wrapping edges B21, the thickness of the U-shaped metal wrapping edges B21 is 0.6mm, and the material is aluminum alloy; the U-shaped metal bordures B21 at both ends are riveted with mounting plates 22, the thickness of the mounting plates 22 is 3mm, the mounting plates 22 are made of aluminum alloy, and the permeable and sound-proof plate 2 is fixed on the foundation pier 6 beside the road through the mounting plates 22 by expansion bolts.
The thickness of the water-permeable sound-absorbing plate 1 is 10mm, the mesh number of sound-absorbing particles adopted by the water-permeable sound-absorbing plate 1 is 20 meshes, the sound-absorbing particles are selected from aeolian sand, and the binder adopted by the water-permeable sound-absorbing plate 1 is selected from epoxy resin. The periphery of the water-permeable sound-absorbing plate 1 is provided with a U-shaped metal wrapping A11, the thickness of the U-shaped metal wrapping A11 is 0.6mm, and the material is aluminum alloy; the back sound surface of the water-permeable sound-absorbing plate 1 is provided with a supporting framework 12 for enhancing the rigidity of the water-permeable sound-absorbing plate, each single water-permeable sound-absorbing plate 1 is provided with two supporting frameworks 12, the thickness of each supporting framework 12 is 2mm, the cross section is a groove, two ends of each supporting framework are fixed on a foundation pier 6 beside a road through end plates 13 by expansion bolts, the thickness of each end plate 13 is 3mm, and the supporting frameworks 12 and the end plates 13 are made of galvanized steel plates; the two ends of the water permeable and sound absorbing plate 1 are provided with angle-shaped pressing strips 14 for fixing the plate body, the cross section of each angle-shaped pressing strip 14 is L-shaped, the thickness is 2mm, the material is aluminum alloy, and each angle-shaped pressing strip 14 is also fixed on a foundation pier 6 beside a road through expansion bolts.
After the water-permeable sound-absorbing and insulating structure is installed, a sound-absorbing resonant cavity is formed between the water-permeable sound-absorbing plate 1 and the baffle plate 3, and the depth of the resonant cavity (i.e. the distance t in fig. 1) is adjusted according to the noise characteristics of a noise source so that the resonant cavity meets the sound-absorbing characteristics, and the depth of the resonant cavity in the embodiment is 60mm.
Example 2:
the structure comprises a water-permeable sound-absorbing plate 1 and a water-permeable sound-insulating plate 2. Since the present embodiment is different from embodiment 1 in only the number and size of parts, the mesh number of sound absorbing particles, and the like, the drawings are not separately enumerated.
The water-permeable sound-insulating plate 2 is in an inclined state, one side of the water-permeable sound-insulating plate is clung to the inner side of the baffle 3, the other side of the water-permeable sound-insulating plate is clung to the bottom of the sound barrier 4, the gap c is sealed, and the sealed joint is sealed by neutral silicone structural adhesive; the water permeable and sound insulating plate 1 is vertically arranged on one inward side of the water permeable and sound insulating plate 2, the top and the bottom of the water permeable and sound insulating plate are respectively connected with the bottom of the sound barrier 4 and the bridge pavement 5, and the sound facing surface is basically flush with the sound facing surface of the sound barrier 4.
The water-permeable sound-absorbing plate 1 and the water-permeable sound-insulating plate 2 are both particle sound-absorbing plates, the particle sound-absorbing plates are formed by combining and forming coated particles, and the coated particles are formed by uniformly coating a layer of adhesive on the outer surfaces of the sound-absorbing particles. The particulate sound absorbing plate is designed based on the particulate sound absorbing plate disclosed in Chinese patent No. ZL201410347735.1, but the particulate sound absorbing plate is improved, the particulate sound absorbing plate and the preparation scheme thereof are disclosed, wherein sound absorbing particles comprise skeleton particles and filling particles, and the improvement of the embodiment is that the sound absorbing particles only adopt one type of particles, namely the skeleton particles, and the filling particles with larger particle size difference are not added into the particles. In addition, the permeability coefficient of the particulate acoustic panel is required to be not lower than 1.5X10 -2 cm/s。
The thickness of the water-permeable and sound-insulating plate 2 is 20mm, the mesh number of sound-absorbing particles adopted by the water-permeable and sound-insulating plate 2 is 50 meshes, the sound-absorbing particles are selected from quartz sand, and the binder adopted by the water-permeable and sound-insulating plate 2 is selected from epoxy resin. The edges of the periphery of the water-permeable sound-insulating plate 2 are provided with U-shaped metal wrapping edges B21, the thickness of the U-shaped metal wrapping edges B21 is 0.6mm, and the material is galvanized steel sheet; the U-shaped metal bordures B21 at both ends are welded with mounting plates 22, the thickness of the mounting plates 22 is 4mm, the mounting plates 22 are made of aluminum alloy, and the permeable and sound-proof plates 2 are fixed on the foundation piers 6 beside the road through the mounting plates 22 by expansion bolts.
The thickness of the water-permeable sound-absorbing plate 1 is 12mm, the mesh number of sound-absorbing particles adopted by the water-permeable sound-absorbing plate 1 is 30 meshes, the sound-absorbing particles are selected from quartz sand, and the binder adopted by the water-permeable sound-absorbing plate 1 is selected from epoxy resin. The edges of the periphery of the water-permeable sound-absorbing plate 1 are provided with U-shaped metal wrapping edges A11, the thickness of the U-shaped metal wrapping edges A11 is 0.6mm, and the material is galvanized steel sheet; the back sound surface of the water-permeable and sound-absorbing plate 1 is provided with a supporting framework 12 for enhancing the rigidity of the water-permeable and sound-absorbing plate, each single water-permeable and sound-absorbing plate 1 is provided with three supporting frameworks 12, the thickness of each supporting framework 12 is 2mm, the cross section is a groove, two ends of each supporting framework are fixed on a foundation pier 6 beside a road through end plates 13 by expansion bolts, the thickness of each end plate 13 is 3mm, and the supporting frameworks 12 and the end plates 13 are made of galvanized steel plates; the two ends of the water permeable and sound absorbing plate 1 are provided with angle-shaped pressing strips 14 for fixing the plate body, the cross section of each angle-shaped pressing strip 14 is L-shaped, the thickness is 2mm, the material is galvanized steel plate, and each angle-shaped pressing strip 14 is also fixed on a foundation pier 6 beside a road through an expansion bolt.
After the water-permeable, sound-absorbing and sound-insulating structure is installed, a sound-absorbing resonant cavity is formed between the water-permeable and sound-absorbing plate 1 and the baffle plate 3, and the depth of the resonant cavity (see the interval t in fig. 1) is adjusted according to the noise characteristics of a noise source so that the resonant cavity meets the sound-absorbing characteristics, and the depth of the resonant cavity in the embodiment is 90mm.
In the two embodiments, the water-permeable sound-absorbing plate can be matched with the sound barrier to play a role in absorbing sound and reducing noise of the train and the automobile in the bridge, so that the problem of noise reverberation is solved; the permeable and sound-insulating plate not only can play a sound-insulating role on the gap between the sound barrier and the baffle, but also has good water permeability, and rainwater can pass through the plate body, so that current water flow traces and long-term accumulation of rainwater on breeding algae are avoided, and the influence of the algae on the appearance of the bridge is avoided.
Claims (6)
1. The utility model provides a sound insulation board structure is inhaled in permeating water suitable for bridge, the bridge is provided with baffle (3), and sound barrier (4) are installed in the top of this baffle (3), and have gap (c) between sound barrier (4) bottom outside and baffle (3) top inboard, its characterized in that: the water-permeable sound-absorbing and sound-insulating plate structure comprises a water-permeable sound-absorbing plate (1) and a water-permeable sound-insulating plate (2), the water-permeable sound-insulating plate (2) is used for sealing the gap (c), the water-permeable sound-absorbing plate (1) is arranged on one inward side of the water-permeable sound-insulating plate (2) and positioned between a bridge pavement (5) and the bottom of the sound barrier (4), the water-permeable sound-insulating plate (2) is in an inclined state, one side clings to the inner side of the baffle (3) and the other side clings to the bottom of the sound barrier (4) to seal the gap (c), and the sealed joint is sealed through neutral silicone structural adhesive; the water permeable and sound absorbing plate (1) is arranged in a vertical state, and the top and the bottom of the water permeable and sound absorbing plate are respectively connected withThe bottom of the sound barrier (4) and the bridge pavement (5) are connected, the sound-facing surface is basically flush with the sound-facing surface of the sound barrier (4), the water-permeable sound-absorbing plate (1) and the water-permeable sound-insulating plate (2) are both particle sound-absorbing plates, the particle sound-absorbing plates are formed by combining film-covered particles, the film-covered particles are formed by uniformly covering the outer surfaces of the sound-absorbing particles with a layer of adhesive, and the water permeability coefficient of the particle sound-absorbing plates is more than or equal to 1.5x10 -2 cm/s。
2. The water permeable, sound absorbing and insulating plate structure suitable for bridges of claim 1, wherein: the thickness of the water permeable sound insulation plate (2) is 15-30mm; the mesh number of the sound absorption particles adopted by the water permeable and sound insulating plate (2) is 40-60 meshes, and the sound absorption particles are selected from one or two of aeolian sand and quartz sand; the adhesive adopted by the water-permeable sound-insulating plate (2) is selected from epoxy resin, phenolic resin, urea-formaldehyde resin or furfuryl alcohol resin.
3. The water permeable, sound absorbing and insulating plate structure suitable for bridges of claim 2, wherein: the U-shaped metal wrapping edges B (21) are arranged at the peripheral edges of the water-permeable sound-insulating plate (2), the thickness of the U-shaped metal wrapping edges B (21) is 0.5-1.2mm, and the U-shaped metal wrapping edges B are made of galvanized steel plates, stainless steel or aluminum alloy; the U-shaped metal bordures B (21) at the two ends are fixedly provided with mounting plates (22), the mounting plates (22) are used for enabling the permeable and sound-proof plates (2) to be fixed on foundation piers (6) beside bridge roads, the thickness of the mounting plates (22) is 2-4mm, and the mounting plates are made of galvanized steel plates, stainless steel or aluminum alloy.
4. The water permeable, sound absorbing and insulating plate structure suitable for bridges of claim 1, wherein: the thickness of the water permeable and sound absorbing plate (1) is 8-15mm; the mesh number of the sound absorbing particles adopted by the water permeable sound absorbing plate (1) is 20-40 meshes, and the sound absorbing particles are selected from one or two of aeolian sand and quartz sand; the adhesive adopted by the water-permeable sound-absorbing plate (1) is selected from epoxy resin, phenolic resin, urea-formaldehyde resin or furfuryl alcohol resin.
5. The water permeable, sound absorbing and insulating plate structure suitable for bridges of claim 4, wherein: the U-shaped metal wrapping edges A (11) are arranged at the peripheral edges of the water-permeable and sound-absorbing plate (1), the thickness of the U-shaped metal wrapping edges A (11) is 0.5-1.2mm, and the U-shaped metal wrapping edges A are made of galvanized steel plates, stainless steel or aluminum alloy; the back sound surface of the water-permeable sound-absorbing plate (1) is provided with a supporting framework (12) for enhancing the rigidity of the water-permeable sound-absorbing plate, each single water-permeable sound-absorbing plate (1) is provided with at least two supporting frameworks (12), the thickness of each supporting framework (12) is 1.2-3mm, the section is L-shaped or groove-shaped, two ends of each supporting framework are fixed on a foundation pier (6) beside a bridge road through end plates (13) by expansion bolts, the thickness of each end plate (13) is 2-4mm, and the supporting frameworks (12) and the end plates (13) are made of galvanized steel plates, stainless steel or aluminum alloy; the two ends of the water permeable and sound absorbing plate (1) are provided with angle-shaped pressing strips (14) for fixing the plate body, the cross section of each angle-shaped pressing strip (14) is L-shaped, the thickness is 2-4mm, the material is galvanized steel plate, stainless steel or aluminum alloy, and each angle-shaped pressing strip (14) is also fixed on a foundation pier (6) beside a bridge road through expansion bolts.
6. The water permeable, sound absorbing and insulating panel structure suitable for bridges according to any one of claims 1-5, wherein: the distance (t) between the water permeable and sound absorbing plate (1) and the baffle plate (3) is 40-200mm.
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| CN201710225428.XA CN108691278B (en) | 2017-04-07 | 2017-04-07 | Water-permeable sound-absorbing and insulating plate structure suitable for bridge |
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| CN201710225428.XA CN108691278B (en) | 2017-04-07 | 2017-04-07 | Water-permeable sound-absorbing and insulating plate structure suitable for bridge |
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| CN108691278B true CN108691278B (en) | 2024-03-15 |
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| JP3032112U (en) * | 1996-06-07 | 1996-12-17 | 大東金属株式会社 | Draining structure in front of sound insulation wall |
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| CN105369748A (en) * | 2015-12-08 | 2016-03-02 | 柳州汉西鸣建材发展有限公司 | Sound barrier unit plate with hydrops drainage function |
| CN106436598A (en) * | 2016-11-30 | 2017-02-22 | 四川正升声学科技有限公司 | Sound absorption plantation pot and landscape sound barrier utilizing same |
| CN206815205U (en) * | 2017-04-07 | 2017-12-29 | 正升环境科技股份有限公司 | Suitable for the permeable Felt structure of bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3032112U (en) * | 1996-06-07 | 1996-12-17 | 大東金属株式会社 | Draining structure in front of sound insulation wall |
| CN103485290A (en) * | 2013-09-25 | 2014-01-01 | 江苏远兴环保集团有限公司 | External-hanging sound barrier for rail transit |
| CN203807967U (en) * | 2014-04-16 | 2014-09-03 | 上海然贝声学环保工程有限公司 | Bridge segment sound barrier |
| CN104264596A (en) * | 2014-09-30 | 2015-01-07 | 四川正升声学科技有限公司 | Particle sound barrier and sound absorption and insulation barrier board thereof |
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| CN108691278A (en) | 2018-10-23 |
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