Cable-supported sound insulation barrier

Abstract

The utility model relates to the technical field of noise control, in particular to a cable-supported sound insulation barrier. The sound insulation screen comprises side sound insulation screens arranged on the two sides of a road and a bridge and further comprises a top sound insulation screen arranged above the road and the bridge, the top sound insulation screen comprises a bearing cable net, a main frame, side frames and sound insulation plates, the main frame comprises main stand columns and main beams, and the main stand columns are arranged in the middle of the road and the bridge at intervals in the longitudinal direction of the road and the bridge. The girders are fixedly arranged at the upper parts of the main upright posts along the longitudinal direction of the road bridge; the side frame comprises side stand columns and side beams, the side stand columns are fixedly arranged on the edges of a road bridge at intervals in the longitudinal direction of the road bridge, and the side beams are fixedly arranged on the tops of the side stand columns in the longitudinal direction of the road bridge. The bearing cable net comprises a plurality of main inhaul cables, the main inhaul cables roughly extend in the transverse direction of the road bridge, the two ends of each main inhaul cable are fixed to the corresponding main beam and the corresponding edge beam respectively, the main inhaul cables are arranged at intervals in the longitudinal direction of the road bridge, and the sound insulation plates are arranged on the bearing cable net. The method can be widely applied to noise control projects in the traffic and transportation fields such as highways, railways, subways and high-speed rails.

Description

TECHNICAL FIELD

[0001] The utility model belongs to noise control technical field, especially relate to a sound barrier for blocking highway or railway noise. BACKGROUND

[0002] Various vehicles will produce strong noise during running on highway or railway, and if not properly managed, will cause environmental complaints when close to villages or residential buildings. In order to reduce the impact of vehicle noise on the surrounding environment, sound-absorbing and sound-insulating barriers are usually set up on both sides of highways or railways passing through bridges, residential areas or commercial areas and other sensitive sections to achieve sound insulation and noise reduction. Generally speaking, the higher the sound insulation screen, the larger the surrounding surface and the sound shadow area, the better the sound insulation and noise reduction effect. Due to the limited height of ordinary vertical sound insulation screens, the control range of noise is insufficient, and full-enclosed sound insulation screens are needed in many sections of the project to improve sound insulation effect and meet environmental protection requirements.

[0003] In practice, on the one hand, the existing full-enclosed sound insulation screen usually uses a bending-resistant steel beam to bear the weight of the sound insulation board (hereinafter referred to as a rigidly supported sound barrier), and has a large span and a large weight, so the size of the steel beam is large and the amount of steel consumed is large. On the other hand, as the speed of vehicles is getting higher and higher, the speed of cars reaches 120km / h, the speed of subways and urban railways reaches 100-150km / h, and the speed of high-speed rails reaches 160-350km / h or more. When the vehicle passes at high speed, the alternating excitation force of tension and suction will be formed due to the change of air pressure, especially the in-out wind pressure formed when the vehicle head enters and the vehicle tail leaves, which will cause strong vibration of the sound-absorbing and sound-insulating barrier, easily causing fatigue damage of the components or connecting structure of the sound-absorbing and sound-insulating barrier. In order to resist such alternating excitation force, the steel frame must have high strength; especially for full-enclosed sound insulation screens with large area, according to the difference of regional climate, the adverse effects of typhoon, rain and snow and other external loads also need to be considered. The above problems force the steel frame to further increase the amount of steel, so the cost of such full-enclosed sound insulation screen is always high, which seriously affects the popularization and application of full-enclosed sound insulation screen technology. In addition, for track bridges, the rigidly supported sound barrier will produce vibration response with the vibration of the train, causing large secondary noise. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the above defects, and provides a cable-supported sound barrier with good economy, small secondary noise and not easy to damage.

[0005] The utility model cable supported sound barrier is realized, including the side sound barrier of setting in the road bridge both sides still including the top sound barrier of setting in the road bridge top, the top sound barrier includes bearing cable net, main frame, side frame and sound insulation board, and the main frame includes main column and main beam, and the main column is along the road bridge longitudinal interval and is arranged in the road bridge middle part, and the main beam is along the road bridge longitudinal fixed and arranged on the main column upper portion, the side frame includes side column and side beam, and the side column is along the road bridge longitudinal interval and is fixed and arranged in the road bridge edge, and the side beam is along the road bridge longitudinal fixed and arranged on the side column top, the bearing cable net includes a plurality of main cable, and the main cable is along the road bridge transverse extension and is fixed on the main beam and the side beam respectively on both ends, and the main cable is along the road bridge longitudinal and is spaced apart from each other, and the sound insulation board is arranged on the bearing cable net.

[0006] In order to improve stability, the utility model cable supported sound barrier can also include tension cable, one end of tension cable is fixedly connected with the upper portion of side column, the other end is connected with the connecting piece fixedly arranged on the road bridge foundation outside the side column, through the tension of tension cable optimization, the tension of main cable to the side column generated by the self weight of sound insulation board can be balanced, the bending moment in the cross section of road bridge suffered by the side column is reduced, and the side column is mainly subjected to compression, so that the size and the amount of steel of the side column can be reduced.

[0007] In addition, the main frame can further comprise anti-push main diagonal braces or anti-push main diagonal cables, both ends of the anti-push main diagonal braces or the anti-push main diagonal cables being connected with adjacent main columns respectively, the anti-push main diagonal braces or the anti-push main diagonal cables being arranged in an X shape or a zigzag shape; in addition, the side frame can further comprise anti-push side diagonal braces or anti-push side diagonal cables, both ends of the anti-push side diagonal braces or the anti-push side diagonal cables being connected with adjacent side columns respectively, the anti-push side diagonal braces or the anti-push side diagonal cables being arranged in an X shape or a zigzag shape; in addition, the bearing cable net can further comprise longitudinal secondary cables or longitudinal secondary beams, the longitudinal secondary cables or the longitudinal secondary beams being arranged along the longitudinal direction of the road bridge, the longitudinal secondary cables or the longitudinal secondary beams being arranged at intervals in the transverse direction of the road bridge, and being fixedly connected with the main cables at intersection points of the main cables. Of course, the bearing cable net can further comprise anti-push secondary diagonal braces or anti-push secondary diagonal cables, the anti-push secondary diagonal braces or the anti-push secondary diagonal cables being arranged in an X shape or a zigzag shape between the main beams and the side beams, and being fixedly connected with the main cables, or the main cables and the longitudinal secondary cables, or the main cables and the longitudinal secondary beams at intersection points. The main effect of the technical scheme of adding various types of diagonal cables or diagonal braces is that the anti-push main diagonal braces or the anti-push main diagonal cables are arranged in the main frame, and the anti-push side diagonal braces or the anti-push side diagonal cables are arranged in the side frame, so that the main columns and the side columns can be significantly strengthened and supported in the anti-push and anti-shear directions; after the anti-push secondary diagonal braces or the anti-push secondary diagonal cables are arranged in the bearing cable net, the wind force and the earthquake response force acting on the sound insulation plates in the top sound insulation screen can be fully transmitted to the main beams and the side beams through the anti-push secondary diagonal braces or the anti-push secondary diagonal cables, and then transmitted to the road bridge foundation through the main columns and the side columns, and since the anti-push and anti-shear capacities of the main columns and the side columns have been significantly strengthened, the size and the amount of steel of the main columns and the side columns can be greatly reduced. Similarly, since the anti-push side diagonal braces or the anti-push side diagonal cables can strengthen the anti-push and anti-shear capacities of the side columns, the size and the amount of steel of the side columns can also be effectively reduced.

[0008] In the cable-supported sound barrier, a plurality of sound insulation plates are arranged in an array along the longitudinal direction and the transverse direction of the road bridge, and both ends of each sound insulation plate along the longitudinal direction of the road bridge are fixed on the main cables.

[0009] If necessary, the cable-supported sound barrier of the utility model further comprises an intermediate sound barrier, the intermediate sound barrier comprises an intermediate sound barrier plate and an intermediate support frame, the intermediate sound barrier plate is arranged in the intermediate support frame, and the intermediate sound barrier plate is provided with sound absorption structures corresponding to the two side vertical surfaces of the two sides of the road. The intermediate support frame can be independently fixed on the road bridge, or the intermediate support frame is integrally arranged with the main frame. Based on the same technical principle, the side sound barrier can be composed of a side sound barrier plate and a side support frame, the side support frame is independently fixed on the road bridge or the side support frame is integrally arranged with the side frame, the side sound barrier plate is arranged in the side support frame, and the side sound barrier plate is provided with sound absorption structures corresponding to the inner side vertical surface of the inner road. Of course, in order to further improve the sound insulation and noise reduction effect, at least part of the sound absorption structures of the sound barrier plate corresponding to the inner surface of the inner road can also be provided in the top sound barrier. In this way, the noise generated by the car or train can be fully absorbed and attenuated in the cable-supported sound barrier of the utility model, so that the noise in the cable-supported sound barrier of the utility model is not amplified due to multiple reflections, and therefore the cable-supported sound barrier has better sound insulation and noise reduction effect on the noise sensitive objects such as the nearby residential area, business district, school or hospital.

[0010] The damping device is arranged between the main cable and the main column and / or between the main cable and the side column, and the damping device comprises a viscous damper, an eddy current damper or a small hole throttling damper. The damping device can absorb the vibration or wave-like oscillation of the top sound barrier caused by driving wind or natural strong wind, thereby improving the service life of each component in the cable-supported sound barrier. Similarly, the damping device can also be arranged between the main column and the longitudinal secondary cable and / or between the side column and the longitudinal secondary beam, or the damping device can be arranged between the main column and the longitudinal secondary beam and / or between the side column and the longitudinal secondary beam, and the damping device comprises a viscous damper, an eddy current damper or a small hole throttling damper. It should be noted that, especially when the damping device is arranged between the longitudinal secondary beam and the main column or the side column, the control range is wider and the energy dissipation and vibration reduction effect is more prominent.

[0011] The cable-supported sound barrier can further comprise a ventilation and pressure relief channel. The ventilation and pressure relief channel can be arranged in various forms, for example, the ventilation and pressure relief channel is arranged between the side sound barrier and the top sound barrier, the top sound barrier is provided with a sound shielding extension section, the sound shielding extension section covers the top of the side sound barrier in vertical and horizontal projections, and in addition, the ventilation and pressure relief channel can be arranged between the top sound barrier and the main beam. In order to prevent noise from leaking out of the ventilation and pressure relief channel between the top sound barrier and the main beam, a shielding sound barrier is arranged below the ventilation and pressure relief channel, and the projection of the shielding sound barrier on the surface of the road bridge partially overlaps the projection of the top sound barrier on the surface of the road bridge. The ventilation and pressure relief channel functions as its name implies, can form natural ventilation in the cable-supported sound barrier of the utility model, exhaust automobile exhaust, reduce the internal temperature, and reduce the lateral thrust along the road bridge generated by wind pressure; wherein, the ventilation and pressure relief channels are arranged on the central and both sides at the same time, and the chimney effect can be generated when the sunlight is irradiated, the air circulation is increased, and the temperature inside the cable-supported sound barrier of the utility model is reduced.

[0012] As two typical special cases, one technical solution is that a connecting beam can be arranged between the side columns arranged on both sides of the road bridge, the main frame is fixedly arranged on the connecting beam, the main column is fixedly arranged on the middle part of the connecting beam corresponding to the middle part of the road bridge, and the main beam is fixedly arranged on the top of the main column. The second technical solution is that the top sound barrier further comprises a suspended frame, the suspended frame is composed of a horizontal pull rod and an inclined support rod, the horizontal pull rod and the inclined support rod are symmetrically arranged on both sides of the main column, the two ends of the horizontal pull rod are connected with the lower part of the main column and the top of the side column respectively, the two ends of the inclined support rod are connected with the upper part of the main column and the top of the side column respectively, and the main beam is fixed on the main column and arranged above the connection point of the horizontal pull rod and the main column. These two solutions are suitable for the scene that the main column cannot be placed on the ground in the middle of the road bridge, and can provide a more spacious internal space and a wider field of view.

[0013] A photovoltaic power generation panel, an integrated photovoltaic power generation film or a photovoltaic power generation coating can also be arranged on the exposed surface of the sound insulation board in the cable-supported sound barrier. Solar energy is converted into electric energy for internal lighting and ventilation of the cable-supported sound barrier, which is more economical and environmentally friendly.

[0014] It should be noted that the sound insulation board, the intermediate sound insulation board or the side sound insulation board in the utility model can be made of various materials, which can be at least one of a metal perforated fiber composite sound absorption board, an alloy foam sound absorption board, a man-made fiber sound absorption board, a sandstone sound absorption board, a tempered glass micro-perforated board, a transparent PC sound absorption board or a calcium silicate sound absorption board. Generally, a combination of transparent and non-transparent sound insulation boards is adopted to ensure the brightness of natural light in the cable-supported sound barrier.

[0015] Compared with existing sound barriers, this utility model of cable-supported sound barrier utilizes a load-bearing cable net to support the sound insulation panels in the top sound barrier, significantly reducing steel consumption and construction costs compared to traditional steel frames. Furthermore, due to the light weight of the load-bearing cable net, the load-bearing requirements of the main and side frames are greatly reduced, facilitating the optimization and reduction of the dimensions and steel consumption of the main and side frames, further lowering construction costs. The overall structure exhibits more rational stress distribution. On one hand, in the cross-section of the road and bridge, the main columns experience smaller bending moments due to symmetrical stress, and the side columns also experience significantly reduced bending moments due to the balancing effect of the tension cables and main cables. On the other hand, in the longitudinal direction of the road and bridge, the horizontal forces are transformed into tensile or compressive forces by various types of diagonal braces and cables, greatly reducing the bending moments on the main and side columns. Therefore, the size and weight of the main and side columns are significantly reduced. Simultaneously, due to the substantial reduction in the total weight of this cable-supported sound barrier, the additional load on the road and bridge is also less, which helps to improve the service life and actual load-bearing capacity of the road and bridge. Furthermore, the ventilation and pressure relief channels create natural ventilation, which is beneficial for cooling and exhausting exhaust gases, and reduces the lateral thrust generated by wind pressure along the road and bridge. In addition, since the supporting cable net is a flexible system, it has strong deformation adaptability when dealing with the alternating excitation force generated by high-speed vehicle passage and the vibration caused by inlet and outlet wind pressure. Especially after the addition of damping devices, it can quickly attenuate vibration energy, effectively avoiding the problems of local fatigue damage caused by stress concentration at the connection points of the rigid frame of traditional sound barriers, greatly reducing the difficulty and investment in later operation and maintenance. Moreover, the sound insulation panels in the top sound barrier are supported on the flexible supporting cable net, which has a low natural frequency and will not couple with the bridge's vibration, thus preventing the generation of secondary noise.

[0016] In summary, this utility model of cable-supported sound barrier not only has excellent sound insulation function but also good vibration damping effect. It has a simple structure, good economy, low secondary noise, is not easily damaged, has a long service life, good applicability, high cost performance, and is safe and reliable. It can be widely used in noise control projects in transportation fields such as highways, railways, subways, and high-speed railways. Attached Figure Description

[0017] Figure 1 This is one of the structural schematic diagrams of the cable-supported sound barrier of this utility model.

[0018] Figure 2 for Figure 1 A partial view in direction A.

[0019] Figure 3 for Figure 1 The partial view from direction B.

[0020] Figure 4 for Figure 1 The C-direction partial view.

[0021] Figure 5 It is the structure schematic view two of the cable supported sound barrier of the utility model.

[0022] Figure 6 It is the D direction partial view of Figure 5 .

[0023] Figure 7 It is the E direction partial view of Figure 5 .

[0024] Figure 8 It is the F direction partial view of Figure 5 .

[0025] Figure 9 It is the structure schematic view three of the cable supported sound barrier of the utility model.

[0026] Figure 10 It is the G direction partial view of Figure 9 .

[0027] Figure 11 It is the H direction partial view of Figure 9 .

[0028] Figure 12 It is the structure schematic view four of the cable supported sound barrier of the utility model.

[0029] Figure 13 It is the structure schematic view five of the cable supported sound barrier of the utility model.

[0030] Figure 14 It is the structure schematic view six of the cable supported sound barrier of the utility model. DETAILED DESCRIPTION

[0031] Embodiment one

[0032] As Figure 1 , Figure 2 , Figure 3 and Figure 4The utility model discloses cable supported sound barrier, including setting in the road bridge both sides'side sound barrier, still including setting in the road bridge top's top sound barrier, the top sound barrier includes bearing cable net, main frame, side frame and sound insulation board, and the main frame includes main column 1 and main beam 2, and the main column 1 is fixedly set in the road bridge middle part's foundation 7 along the road bridge longitudinal direction interval, and the main beam 2 is fixedly set in the main column 1 top along the road bridge longitudinal direction, and the isolator 10 is set between adjacent main column 1, and the isolator 10 specifically is the isolation green belt, the side frame includes side column 3 and side beam 4, and the side column 3 is fixedly set in the road bridge edge along the road bridge longitudinal direction interval, and the side beam 4 is fixedly set in the side column 3 top along the road bridge longitudinal direction, and the bearing cable net includes a plurality of main cable 5, and the main cable 5 extends along the road bridge transverse direction and is fixed on the main beam 2 and side beam 4 respectively at both ends, and the main cable 5 is set along the road bridge longitudinal direction interval each other, and the sound insulation board 6 is set on the bearing cable net, and the sound insulation board sets a plurality of, and the sound insulation board 6 is arranged in array along the road bridge longitudinal direction and road bridge transverse direction, and the both ends of each sound insulation board 6 along the road bridge longitudinal direction are fixed on the main cable 5 respectively, the side sound barrier is composed of side sound insulation board 9 and side support frame, and the side sound insulation board is arranged in the side support frame, and specifically, the side column 3 is used as the side support frame simultaneously, namely the side support frame is integrally arranged with the side frame.

[0033] As Figure 1 In the example, the road bridge structure is specifically a highway, and when the utility model is applied, the noise generated by the vehicle 8 during the driving process inside the utility model cable supported sound barrier can be blocked and shielded by the side sound insulation board 9 in the side sound barrier and the sound insulation board 6 in the top sound barrier, so that the noise can be absorbed and attenuated inside the utility model cable supported sound barrier, and the noise is prevented from being amplified due to multiple reflections inside the utility model cable supported sound barrier, so that the noise intensity transmitted to the external environment is greatly reduced, and the adverse effects of the vehicle operation noise on the surrounding environment can be effectively reduced, and the utility model has better sound insulation and noise reduction effects on the noise sensitive objects, such as the adjacent residential areas, business areas, schools or hospitals.

[0034] Compared with the existing soundproof screen, the cable-supported soundproof screen barrier uses the bearing cable net to support the soundproof board in the top soundproof screen, and the amount of steel is greatly reduced compared with the traditional steel frame, and the construction cost is greatly reduced; in addition, due to the small weight of the bearing cable net, the bearing requirement of the main frame and the side frame is greatly reduced, which is beneficial to optimize and reduce the size and steel consumption of the main frame and the side frame, and further reduce the construction cost, and at the same time, due to the great reduction of the total weight of the cable-supported soundproof screen barrier, the additional load applied on the road and bridge is also smaller, which is beneficial to improve the service life and actual bearing capacity of the road and bridge; in addition, since the bearing cable net is a flexible system, when dealing with the alternating excitation force generated by the high-speed passing of vehicles and the vibration caused by the wind pressure, it has strong deformation adaptability, effectively avoids the local fatigue damage caused by the stress concentration of the rigid frame of the traditional soundproof screen barrier at the connecting part, and greatly reduces the difficulty and investment of later operation and maintenance. In addition, the soundproof board in the top soundproof screen is supported on the flexible bearing cable net, which has a low natural frequency and will not cause coupling resonance with the vibration of the bridge, so it will not emit secondary noise.

[0035] In summary, the cable-supported soundproof screen barrier not only has good sound insulation function, but also has good vibration suppression effect, and has the advantages of simple structure, good economy, small secondary noise, long service life, good applicability, high cost performance, safety and reliability, and can be widely applied to noise control engineering in the fields of highway, railway, subway and high-speed rail.

[0036] It should be noted that the soundproof board or side soundproof board in the utility model can be at least one of metal perforated fiber composite sound absorption board, alloy foam sound absorption board, artificial fiber sound absorption board, sandstone sound absorption board, tempered glass micro-perforated plate, transparent PC sound absorption board or calcium silicate sound absorption board. Generally, a combination of transparent and non-transparent soundproof board materials is adopted to ensure the natural brightness inside the cable-supported soundproof screen barrier and achieve the purpose of saving electric energy.

[0037] Example two

[0038] As Figure 5 , Figure 6 , Figure 7 and Figure 8The utility model of cable supported sound barrier, the difference with example one lies in, the road bridge structure specifically be municipal railway, the side sound barrier is by independently setting side support frame 14 and side sound insulation board 9, side sound insulation board 9 sets up in side support frame 14, and side sound insulation board 9 is equipped with sound absorption structure 15 to the inside vertical surface of corresponding internal road, in addition, still include tension cable 11, one end of tension cable 11 is fixedly connected with side stand column 3 upper portion, and the other end is connected with the connecting piece 12 fixedly set up on the road bridge foundation 7 of side stand column 3 outside, in addition, the damper 13 is set between main cable 5 and main stand column 1, and the damper 13 specifically be small hole throttling damper, fourth, the utility model of cable supported sound barrier still includes ventilation pressure relief passage in the example, ventilation pressure relief passage sets up between the sound insulation board 6 of top sound barrier and main beam 2, as shown in Figure 5 The gap J between the two constitutes the ventilation pressure relief passage, fifth, the side frame still includes anti-push side diagonal brace 16, and the both ends of anti-push side diagonal brace 16 are respectively connected with adjacent side stand columns, and the anti-push side diagonal brace 16 is arranged in X shape, sixth, the main frame still includes anti-push main diagonal brace 17, and the both ends of anti-push main diagonal brace 17 are respectively connected with adjacent main stand columns, and the anti-push main diagonal brace 17 is arranged in zigzag shape, seventh, the bearing cable net still includes longitudinal secondary cable 18, and the longitudinal secondary cable 18 is arranged along the longitudinal direction of the road bridge, and the longitudinal secondary cables are arranged at intervals in the transverse direction of the road bridge and are fixedly connected with the main cable 5 at the intersection points of the main cable 5.

[0039] Compared with the example one, the technical scheme of the cable-supported sound barrier in the example has the following advantages: the side upright columns 3 are inclined outward, the stress state is more reasonable, the side upright columns 3 can better bear the tension of the main cables 5, especially after the tension cables 11 are added, the tension of the tension cables 11 can balance the tension of the soundproof plates 6 on the side upright columns 3 through the main cables 5, the bending moment of the side upright columns 3 in the road bridge cross section is reduced, and the side upright columns 3 are mainly subjected to compression, so that the size and the amount of steel of the side upright columns 3 can be reduced; in addition, because the damping devices 13 are added, the damping devices can absorb the vibration or wave-shaped oscillation of the sound barrier caused by driving wind and natural strong wind, the service life of each component in the cable-supported sound barrier is improved, and after the damping devices are added, the kinetic energy of the alternating excitation force caused by high-speed running of vehicles and the vibration caused by the outflow wind pressure can be rapidly attenuated, the local fatigue damage caused by stress concentration of the rigid frame of the traditional sound barrier at the connecting position is effectively avoided, and the difficulty and investment of later operation and maintenance are greatly reduced; the anti-push main diagonal braces in the main frame and the anti-push side diagonal braces in the side frame can significantly strengthen and support the main upright columns and the side upright columns against push and shear, and are beneficial to reducing the size and the amount of steel of the main upright columns and the side upright columns; after the longitudinal auxiliary cables are arranged in the bearing cable net, the integrity of the bearing cable net is greatly improved, and the bearing soundproof plates are more stable and reliable; from the stress state of the overall structure, the stress state of the overall structure of the technical scheme in the example is more reasonable, on the one hand, in the road bridge cross section, the bending moment of the main upright columns is small due to the symmetrical stress, and the bending moment of the side upright columns is also greatly reduced due to the balancing effect of the tension cables and the main cables, on the other hand, in the road bridge longitudinal direction, the horizontal force is converted into the tension or pressure of the diagonal braces and the diagonal cables by the diagonal braces and the diagonal cables of various types, and the bending moment of the main upright columns and the side upright columns is greatly reduced, so that the size and the weight of the main upright columns and the side upright columns are greatly reduced; the wind pressure relief channels can form natural ventilation in the cable-supported sound barrier, exhaust automobile exhaust, reduce the internal temperature, and reduce the horizontal thrust along the road bridge caused by the wind pressure.

[0040] Based on the technical principle of the example, the anti-push main inclined strut in the cable-supported sound barrier can also be arranged in an X shape, and in addition to the anti-push main inclined strut, the main frame can also be provided with an anti-push main inclined cable, the two ends of the anti-push main inclined cable being connected to adjacent main columns, and the anti-push main inclined cable being arranged in an X shape or a zigzag shape; similarly, the anti-push edge inclined strut in the edge frame can also be arranged in a zigzag shape, and in addition to the anti-push edge inclined strut, the edge frame can also be provided with an anti-push edge inclined cable, the two ends of the anti-push edge inclined cable being connected to adjacent edge columns, and the anti-push edge inclined cable being arranged in an X shape or a zigzag shape; of course, in addition to the longitudinal secondary cable, a longitudinal secondary beam can also be arranged in the cable net, the longitudinal secondary beam extending along the longitudinal direction of the road bridge, the longitudinal secondary beams being spaced apart from each other in the transverse direction of the road bridge, and being fixedly connected to the main cable at the intersection point; in addition, the damping device that can be used in the utility model is various, in addition to the small-hole throttling damper mentioned above, it can also be a viscous damper, an eddy current damper and other forms of dampers, and it is particularly pointed out that the damping device can be arranged between the main cable and the edge column in addition to being arranged between the main cable and the main column, and of course, the damping device can also be arranged between the main cable and the main column and between the main cable and the edge column at the same time, based on this technical principle, the damping device can also be arranged between the main column and the longitudinal secondary cable or / and between the edge column and the longitudinal secondary beam, or between the main column and the longitudinal secondary beam or / and between the edge column and the longitudinal secondary beam, the damping device comprising a viscous damper, an eddy current damper or a small-hole throttling damper, the arrangement of such a damping device has a larger control range and better damping energy consumption effect, which is conducive to improving the service life of each component in the cable-supported sound barrier of the utility model and can also achieve good technical effects, these are simple changes based on the technical principle of the utility model, and only the text is given for explanation, and they are all within the protection scope required by the utility model.

[0041] Example three

[0042] As Figure 9 , Figure 10 and Figure 11 indicated, the cable-supported sound barrier of the utility model is different from example two in that the road bridge structure is a railway bridge, the foundation 7 of the road bridge is a bridge girder, one end of the tension cable 11 is connected to the top of the edge column 3, and the other end is connected to the connecting piece 12 fixedly arranged on the foundation 7; in addition, it also includes an intermediate sound barrier, the intermediate sound barrier comprising an intermediate sound barrier plate 20 and an intermediate support frame 21, the intermediate sound barrier plate 20 being arranged in the intermediate support frame 21, the intermediate sound barrier plate 20 being provided with a sound absorption structure 15 corresponding to the two side vertical surfaces of the two sides of the road, and the intermediate support frame 21 being independently fixed on the foundation 7 (not specifically shown in the figure); in addition, the sound absorption structure 15 is arranged on the inner surface of the internal sound barrier plate 6 corresponding to the internal road; fourthly, as Figure 11The bearing cable net further comprises anti-push secondary diagonal cables 22 arranged in X shape between the main beam 2 and the edge beam 4 and fixedly connected with the main cables 5 at the intersection points; fifth, the air venting and pressure releasing channel is provided below the shielding and sound insulation screen 19, and the projection of the shielding and sound insulation screen 19 on the surface of the road and bridge partially overlaps the projection of the top sound insulation screen on the surface of the road and bridge; sixth, in addition to the air venting and pressure releasing channel at the gap J, an air venting and pressure releasing channel is also left at the gap K between the edge sound insulation screen and the top sound insulation screen, and correspondingly, the top sound insulation screen is provided with a sound shielding extension section 27, which covers the top of the edge sound insulation screen in vertical and horizontal projections.

[0043] Compared with the second embodiment, in the technical solution of the present embodiment, the intermediate sound insulation screen is additionally provided, and the sound absorption structure 15 is additionally provided on the surfaces outside the intermediate sound insulation screen 20, and the sound absorption structure 15 is also provided on the surface of the sound insulation plate of the top sound insulation screen towards the inside of the road, so that the capacity of absorbing the noise generated by the vehicle is stronger, and the sound absorption and noise reduction effect is better; in addition, the anti-push secondary diagonal cables are additionally provided in the bearing cable net, so that the wind force and the seismic response force acting on the sound insulation plate of the top sound insulation screen can be fully transmitted to the main beam and the edge beam through the anti-push secondary diagonal cables, and then transmitted to the road and bridge foundation through the main stand column and the edge stand column, and since the anti-push and anti-shear capacities of the main stand column and the edge stand column have been significantly strengthened, the size and the amount of steel of the main stand column and the edge stand column can be greatly reduced, and the support of the sound insulation plate 6 is more stable and reliable, and the safety is better; in addition, since the air venting and pressure releasing channels are provided in the central part and the two sides of the cable-supported sound insulation screen barrier of the present embodiment, the chimney effect can be generated when the sunlight is irradiated, the air circulation is increased, and the temperature inside the cable-supported sound insulation screen barrier is reduced; in addition, since the shielding and sound insulation screen and the sound shielding extension section are additionally provided, the noise can be effectively prevented from leaking out of the air venting and pressure releasing channel, the sound absorption and noise reduction effect is better, and it is particularly important to note that the shielding and sound insulation screen can also shield rain, so that the rainwater can not directly fall on the lane inside the cable-supported sound insulation screen barrier of the present embodiment and cause interference to the driving, and when applied, the rainwater can be collected by the shielding and sound insulation screen and then guided into the downpipe (not specifically shown in the figure) arranged at the main stand column for drainage.

[0044] It should be noted that in this case, the inner surface of the sound insulation board 6 in the top sound insulation screen is provided with a sound absorption structure, according to the specific structure of the top sound insulation screen, all the inner surfaces of the sound insulation boards can be provided with sound absorption structures, in addition, the inner surface of the shielding sound insulation screen 19 can also be provided with a sound absorption structure; In addition, based on the technical principle of this example, the anti-push auxiliary diagonal cable can be arranged in a zigzag shape in addition to the X-shaped arrangement; In addition to the anti-push auxiliary diagonal cable, the anti-push auxiliary diagonal support can also be arranged in the cable net, and the anti-push auxiliary diagonal support is arranged in an X shape or a zigzag shape between the main beam and the edge beam, and is fixedly connected with the main cable at the intersection point. Of course, for the technical solution of the cable net also provided with longitudinal auxiliary cable or longitudinal auxiliary beam, the anti-push auxiliary diagonal support or the anti-push auxiliary diagonal cable can also be fixedly connected with each other at the intersection point of the longitudinal auxiliary cable or the longitudinal auxiliary beam, so as to improve the integrity and stability. The above technical contents are simple changes based on the technical principle of the utility model, which are only described in words and do not need to be described in another drawing, and are also within the protection scope of the utility model.

[0045] Example four

[0046] As Figure 12 shown in the utility model cable supported sound barrier, the difference from example one is that the connecting beam 23 is arranged between the edge columns 3 arranged on both sides of the road bridge, and the main frame is fixedly arranged on the connecting beam 23. Among them, the main column 1 is fixedly arranged on the middle part of the connecting beam 23 corresponding to the middle part of the road bridge, and the main beam 2 is fixedly arranged on the top of the main column 1. In addition, the exposed surface of the sound insulation board 6 is integrally provided with a photovoltaic power generation film 24. In addition, the partition 10 is specifically a partition low wall.

[0047] Compared with example one, in the technical solution of this example, the main column is arranged on the connecting beam, which can well adapt to the application scene that the main column cannot be placed on the ground in the middle of the road bridge, and provide a more spacious internal space and view. In addition, after adding the photovoltaic power generation film on the exposed surface of the sound insulation board, solar energy can be converted into electric energy for the internal lighting and ventilation of the cable supported sound barrier, which is more economical and environmentally friendly.

[0048] Of course, based on the technical principle of this example, in addition to adding the photovoltaic power generation film, other solar energy utilization facilities such as photovoltaic power generation panel or photovoltaic power generation coating can also be arranged on the exposed surface of the sound insulation board, which can also achieve the same technical effect. Here, only the description is given in words, which is within the protection scope of the utility model.

[0049] Example five

[0050] As Figure 13The cable-supported sound barrier of this utility model differs from Embodiment 4 in that the top sound barrier also includes a suspended frame. The suspended frame consists of horizontal tie rods 25 and diagonal supports 26. The horizontal tie rods 25 and diagonal supports 26 are symmetrically arranged on both sides of the main column. The two ends of the horizontal tie rods 25 are connected to the lower part of the main column 1 and the top of the side column 3, respectively. The two ends of the diagonal supports 26 are connected to the upper part of the main column 1 and the top of the side column 3, respectively. The main beam 2 is fixed on the main column 1 and is located above the connection point between the horizontal tie rods 25 and the main column 1. Specifically, the main beam 2 is also located above the connection point between the diagonal supports 26 and the main column 1. In addition, the isolation element 10 is specifically a low isolation support.

[0051] Compared with Example 4, the technical solution described in this example uses horizontal tie rods, diagonal supports, and main columns to form a stable triangular support structure. This effectively distributes the weight of the top sound barrier to the side columns. The main columns do not bear a large load, so there is no need to install very thick horizontal tie rods and diagonal supports. This helps to reduce the size and steel consumption of the main columns, horizontal tie rods, and diagonal supports. The size and steel consumption of the side columns are also optimized, thereby reducing the weight and steel consumption of the entire top sound barrier and achieving the goal of reducing construction costs.

[0052] Of course, based on the technical principles of this example, such as Figure 14 As shown, the main beam 2 can also be set above the connection point between the horizontal tie rod 25 and the main column 1 and below the connection point between the diagonal support rod 26 and the main column 1. This structure provides better support for the diagonal support rod 26 and makes the structure more stable.

[0053] The embodiments in this utility model are only for better illustrating the technical solutions of this utility model and should not be regarded as a limitation of this utility model. The technical features in many of the embodiments can also be used interchangeably. Based on the technical principles of this utility model, those skilled in the art can recombine the technical solutions described in the above embodiments or use similar technologies to simply replace some of the components. As long as they are based on the technical principles of this utility model, they are all within the protection scope claimed by this utility model.

Claims

1. A cable supported sound barrier comprising side sound barriers arranged on both sides of a road bridge, characterized in that, The top sound insulation screen arranged above the road bridge comprises a bearing cable net, a main frame, a side frame and a sound insulation board, the main frame comprises main columns and main beams, the main columns are arranged in the middle of the road bridge at intervals along the longitudinal direction of the road bridge, and the main beams are fixedly arranged on the upper portions of the main columns along the longitudinal direction of the road bridge; the side frame comprises side columns and side beams, the side columns are fixedly arranged at intervals along the longitudinal direction of the road bridge on the edges of the road bridge, and the side beams are fixedly arranged on the top portions of the side columns along the longitudinal direction of the road bridge; the bearing cable net comprises a plurality of main cables, the main cables extend substantially along the transverse direction of the road bridge and are fixed at two ends on the main beams and the side beams respectively, the main cables are arranged at intervals along the longitudinal direction of the road bridge, and the sound insulation board is arranged on the bearing cable net.

2. The cable supported sound barrier of claim 1, wherein, The cable-supported sound insulation screen further comprises a tension cable, one end of the tension cable is fixedly connected with the upper portion of the side column, and the other end of the tension cable is connected with a connecting piece fixedly arranged on the road bridge foundation outside the side column.

3. The cable supported sound barrier of claim 1, wherein, The main frame further comprises anti-push main diagonal braces or anti-push main diagonal cables, the anti-push main diagonal braces or the anti-push main diagonal cables are respectively connected with adjacent main columns at two ends, and the anti-push main diagonal braces or the anti-push main diagonal cables are arranged in an X shape or a zigzag shape.

4. The cable supported sound barrier of claim 1, wherein, The side frame further comprises anti-push side diagonal braces or anti-push side diagonal cables, the anti-push side diagonal braces or the anti-push side diagonal cables are respectively connected with adjacent side columns at two ends, and the anti-push side diagonal braces or the anti-push side diagonal cables are arranged in an X shape or a zigzag shape.

5. The cable supported sound barrier of claim 1, wherein, The bearing cable net further comprises longitudinal secondary cables or longitudinal secondary beams, the longitudinal secondary cables or the longitudinal secondary beams are arranged along the longitudinal direction of the road bridge, the longitudinal secondary cables or the longitudinal secondary beams are arranged at intervals along the transverse direction of the road bridge, and the longitudinal secondary cables or the longitudinal secondary beams are fixedly connected with the main cables at intersection points.

6. The cable supported sound barrier of claim 1 or 5, wherein, The bearing cable net further comprises anti-push secondary diagonal braces or anti-push secondary diagonal cables, the anti-push secondary diagonal braces or the anti-push secondary diagonal cables are arranged in an X shape or a zigzag shape between the main beams and the side beams, and the anti-push secondary diagonal braces or the anti-push secondary diagonal cables are fixedly connected with the main cables, or the main cables and the longitudinal secondary cables, or the main cables and the longitudinal secondary beams at intersection points.

7. The cable supported sound barrier of claim 5, wherein, A damping device is arranged between the main columns and the longitudinal secondary cables and / or between the side columns and the longitudinal secondary beams, or a damping device is arranged between the main columns and the longitudinal secondary beams and / or between the side columns and the longitudinal secondary beams, and the damping device comprises a viscous damper, an eddy current damper or a small-hole throttling damper.

8. The cable supported sound barrier of claim 1, wherein, The sound insulation board is arranged in multiple pieces, the sound insulation boards are arranged in an array along the longitudinal direction of the road bridge and the transverse direction of the road bridge, and two ends of each sound insulation board along the longitudinal direction of the road bridge are fixed on the main cables.

9. The cable supported sound barrier of claim 1, wherein, The cable-supported sound insulation screen further comprises an intermediate sound insulation screen, the intermediate sound insulation screen comprises an intermediate sound insulation board and an intermediate support frame, the intermediate sound insulation board is arranged in the intermediate support frame, and the intermediate sound insulation board is provided with sound absorption structures corresponding to two side vertical surfaces of two sides of the road.

10. The cable supported sound barrier of claim 9, wherein, The intermediate support frame is independently fixed on the road bridge, or the intermediate support frame is integrally arranged with the main frame.

11. The cable supported sound barrier of claim 1, wherein, The side sound insulation screen is composed of a side sound insulation board and a side support frame, the side support frame is independently fixed on the road bridge or the side support frame is integrally arranged with the side frame, the side sound insulation board is arranged in the side support frame, and the side sound insulation board is provided with sound absorption structures corresponding to an inner side vertical surface of the inner road.

12. The cable supported sound barrier of claim 1, wherein, A damping device is arranged between the main columns and the main cables and / or between the main cables and the side columns, and the damping device comprises a viscous damper, an eddy current damper or a small-hole throttling damper.

13. The cable supported sound barrier of claim 1, wherein, The cable-supported sound barrier further comprises a ventilation and pressure relief channel.

14. The cable supported sound barrier of claim 13, wherein, The ventilation and pressure relief channel is arranged between the side sound barrier and the top sound barrier, and the top sound barrier is provided with a sound shielding extension section, which covers the top of the side sound barrier in vertical and horizontal projection.

15. The cable supported sound barrier of claim 13, wherein, The ventilation and pressure relief channel is arranged between the soundproof board of the top sound barrier and the main beam.

16. The cable supported sound barrier of claim 15, wherein, The ventilation and pressure relief channel is provided below with a shielding sound barrier, and the projection of the shielding sound barrier on the road surface partially overlaps the projection of the top sound barrier on the road surface.

17. The cable supported sound barrier of claim 1, wherein The connecting beams are arranged between the side columns arranged on both sides of the road bridge, and the main frame is fixedly arranged on the connecting beams, the main columns are fixedly arranged on the middle part of the connecting beams corresponding to the middle part of the road bridge, and the main beams are fixedly arranged on the top of the main columns.

18. The cable supported sound barrier of claim 1, wherein, The top sound barrier further comprises a suspended frame composed of horizontal tie rods and inclined support rods, which are symmetrically arranged on both sides of the main column, and the two ends of the horizontal tie rod are connected with the lower part of the main column and the top of the side column, respectively, and the two ends of the inclined support rod are connected with the upper part of the main column and the top of the side column, respectively, and the main beam is fixed on the main column and arranged above the connection point of the horizontal tie rod and the main column.

19. The cable supported sound barrier of claim 1, wherein The exposed surface of the soundproof board is provided with a photovoltaic power generation board, or an integrated photovoltaic power generation film, or a photovoltaic power generation coating.

20. The cable supported sound barrier of claim 1, wherein At least part of the soundproof boards in the top sound barrier are provided with sound absorption structures corresponding to the inner surface of the internal road.

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