A movable sound barrier structure applicable to the ultra-long expansion joints of road bridges

Abstract

The present invention relates to a movable sound barrier structure applicable to the ultra-long expansion joints of road bridges, which comprises multiple layers of sound barrier unit plates arranged between adjacent steel columns. Aluminum profiles are fixedly provided at the top and / or bottom of the sound barrier unit plates. Adjacent aluminum profiles are slidably clamped together relative to each other, and adjacent aluminum profiles are connected together by safety ropes, so that relative dislocation can occur between two adjacent aluminum profiles. The aluminum profiles and / or sound barrier unit plates at the innermost and outermost sides are respectively connected to different steel columns. The movable sound barrier structure can be normally used and exert the original effect of the sound barrier under the condition of meeting the expansion and contraction of the bridge deck of the road bridge. The single-layer sound barrier unit plate is replaced by a double-layer, triple-layer or more layers, and the number of layers can be specifically set according to different expansion and contraction amounts, and it can be applied to long-span bridges with very high requirements for the range of expansion and contraction amounts.

Description

Technical Field

[0001] The invention relates to a movable sound barrier structure suitable for an extra-long expansion joint of a road bridge, and specifically belongs to the technical field of road sound barriers. Background Art

[0002] At present, with the progress of society and the development of cities, a large number of transportation facilities such as highways, railways, and urban rail transit have been built. Some large-span bridges have continuously broken through their span limits, from the initial tens of meters to the current thousands of meters. As the span increases, the bridge deck of the road bridge is affected by thermal expansion and contraction, and will produce different degrees of expansion and contraction deformation at the beam end. If conventional sound barriers are used, there is a high probability that the screen will fall off from the inner cavity of the H-shaped steel, causing immeasurable losses. The deformation of conventional bridge expansion joints is generally between 0-200mm. In order to meet the requirements of bridge deck deformation for sound barriers, the sound barriers at the corresponding expansion joints usually adopt the method of widening the steel column flange plate. However, for super-large bridges with super-long expansion (≯2000mm), it is impossible to ensure that the screen does not fall off by simply widening the steel column flange plate. In response to the above problems, the present invention provides a movable sound barrier structure suitable for super-long expansion joints of road bridges, which can be used normally and exert the original effect of the sound barrier while meeting the expansion and contraction of the bridge deck. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a movable sound barrier structure suitable for super-long expansion joints of road bridges, which can be used normally and exert the original effect of the sound barrier while meeting the expansion and contraction requirements of the bridge deck.

[0004] To solve the above problems, the technical solution adopted by the present invention is:

[0005] A movable sound barrier structure suitable for extra-long expansion joints of road bridges, comprising a multi-layer sound barrier unit plate arranged between adjacent steel columns, wherein aluminum profiles are fixedly arranged on the top and / or bottom of the sound barrier unit plate, adjacent aluminum profiles can be relatively slidably clamped together, and adjacent aluminum profiles are connected together by a safety rope so that relative dislocation can occur between two adjacent aluminum profiles, and the innermost and outermost aluminum profiles and / or sound barrier unit plates are respectively connected to different steel columns.

[0006] As an embodiment of the present invention, two fixed pulleys are horizontally provided on the aluminum profile, which are respectively located at the end and the middle. The safety rope is passed around the fixed pulleys on multiple aluminum profiles in sequence, and the two ends are respectively tied to the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile. A clearance hole is provided at a position corresponding to the middle fixed pulley on the outer side surface of the aluminum profile, the middle fixed pulley is arranged close to the clearance hole, and a long strip clearance groove corresponding to the safety rope is provided on the inner side surface of the adjacent aluminum profile.

[0007] As an implementation mode of the present invention, the fixed pulley is provided with two upper and lower groups on the aluminum profile, and two corresponding upper and lower safety ropes are provided.

[0008] As an embodiment of the present invention, the aluminum profile includes an aluminum profile 1 and several aluminum profiles 2, the aluminum profile 1 is symmetrically provided with a horizontal mounting plate 1 at the upper and lower parts, the aluminum profile 1 is symmetrically provided with an opening 1 at the top and bottom, and the aluminum profile 1 is provided with a card slot 1 on the right side; the aluminum profile 2 is symmetrically provided with a horizontal mounting plate 2 at the upper and lower parts, the aluminum profile 2 is symmetrically provided with an opening 2 at the top and bottom, the aluminum profile 2 is provided with a card slot 2 on the right side, and a card block matching the card slot 1 and the card slot 2 is provided on the left side.

[0009] As an embodiment of the present invention, the fixed pulley is arranged on the outside of the mounting plate 1 and the mounting plate 2, the clearance hole is arranged on the right side of the aluminum profile 1 and the aluminum profile 2, and the clearance groove is arranged on the left side of the aluminum profile 2 and is flush with the clearance hole.

[0010] As an embodiment of the present invention, tracks are provided inside the mounting plate 1 and the mounting plate 2, rollers corresponding to the tracks are provided on the clamping block, and limit blocks are provided at both ends of the tracks.

[0011] As an embodiment of the present invention, the upper and lower ends of the aluminum profile are in a ┌ ┐ shape, which is convenient for installing the fixed pulley and can protect the fixed pulley when multiple sound barrier unit panels are stacked up and down.

[0012] As an embodiment of the present invention, an automatic retraction device is provided on the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile, so that the safety rope is always in a taut state, and the two ends are wrapped around the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile. A limiting device is provided on the fixed pulley to prevent the safety rope from detaching.

[0013] As an embodiment of the present invention, the aluminum profile is provided with two columns located at the end and the middle respectively, and the two ends of the safety rope are respectively tied to the column in the middle of the inner aluminum profile and the column at the end of the outer aluminum profile, and the outer side surface of the aluminum profile and the corresponding position of the column in the middle of the aluminum profile are provided with a clearance hole, the middle column is arranged close to the clearance hole, and the inner side surface of the adjacent aluminum profile is provided with a long strip clearance groove corresponding to the safety rope.

[0014] As an embodiment of the present invention, a fixed pulley is provided on the column, and an automatic retraction device is provided on the fixed pulley to keep the safety rope in a taut state at all times, with both ends wound around the fixed pulley, and a limiting device is provided on the fixed pulley to prevent the safety rope from detaching.

[0015] The beneficial effects produced by adopting the above technical solution are as follows:

[0016] A movable sound barrier structure applicable to the ultra-long expansion joints of road bridges provided by the present invention can be normally used and exert the original effect of the sound barrier while meeting the expansion of the bridge deck of the road bridge. The sound barrier unit board is replaced from the traditional single layer to double layer, triple layer or more layers, and the number of layers can be specifically set according to different expansion amounts, and it can be applied to long-span bridges with a very high requirement range for the expansion amount. Adjacent aluminum profiles can be clamped together and slid relative to each other, and adjacent aluminum profiles are connected together by safety ropes. The length of the safety ropes is set to limit the movement of the sound barrier unit board. At the same time, the limit blocks at both ends of the track also limit the movement of the rollers to prevent the movement range of the rollers from exceeding the aluminum profiles. The safety ropes and the limit blocks provide double limits for the displacement of the sound barrier unit board to ensure that it does not fall off during the movement process. Brief Description of the Drawings

[0017] Figure 1 is the front view structural schematic diagram of the present invention.

[0018] Figure 2 is Figure 1 the sectional structural schematic diagram at A-A in

[0019] Figure 3 is Figure 2 the partial enlarged schematic diagram at A in

[0020] Figure 4 is Figure 1 the sectional structural schematic diagram at B-B in

[0021] Figure 5 is Figure 4 the structural schematic diagram in the extended state of

[0022] Figure 6 is the exploded structural schematic diagram of the aluminum profile in the present invention.

[0023] Figure 7 is the structural schematic diagram of aluminum profile 1 in the present invention.

[0024] Figure 8 is another structural schematic diagram of aluminum profile 1 in the present invention.

[0025] Figure 9 is the structural schematic diagram of aluminum profile 2 in the present invention.

[0026] Figure 10 is another structural schematic diagram of aluminum profile 2 in the present invention.

[0027] Wherein: 1 steel column, 2 sound barrier unit board, 3 aluminum profiles, 3-1 aluminum profile one, 3-1-1 mounting plate one, 3-1-2 opening one, 3-1-3 card slot one, 3-2 aluminum profile two, 3-2-1 mounting plate two, 3-2-2 opening two, 3-2-3 card slot two, 3-2-4 clamping block, 3-3 relief hole, 3-4 relief groove, 4 fixed pulley one, 5 fixed pulley two, 6 roller, 7 safety rope, 8 fixing bolt, 9 connecting bolt, 10 track, 11 angle steel. Detailed implementation manner

[0028] To make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be clearly and completely described below in conjunction with specific embodiments.

[0029] Embodiment 1:

[0030] As Figures 1-5 shown, a movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge, which includes multiple layers of sound barrier unit boards 2 arranged between adjacent steel columns 1. Aluminum profiles are fixedly provided at the top and / or bottom of the sound barrier unit boards 2. Adjacent aluminum profiles are slidably clamped together relative to each other, and adjacent aluminum profiles are connected together by a safety rope 7, so that relative displacement can occur between two adjacent aluminum profiles. The aluminum profiles and / or sound barrier unit boards at the innermost and outermost sides are respectively connected to different steel columns 1. The top and / or bottom of the sound barrier unit board 2 is connected to the aluminum profile through a connecting bolt 9. The ends of the aluminum profiles and / or sound barrier unit boards at the innermost and outermost sides are connected to the web of the steel column 1 through a fixing bolt 8. The steel column 1 is an H-shaped steel column. When the end of the aluminum profile is connected to the web of the steel column 1, a closed connecting plate is provided at the end of the aluminum profile to facilitate the setting of the fixing bolt 8.

[0031] In this embodiment, two fixed pulleys are horizontally provided on the aluminum profile, which are respectively located at the end and the middle. The safety rope 7 sequentially passes around the fixed pulleys on multiple aluminum profiles, and the two ends are respectively tied to the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile. A relief hole 3-3 is provided at the position corresponding to the middle fixed pulley on the outer side of the aluminum profile, and the middle fixed pulley is arranged close to the relief hole 3-3. A long strip-shaped relief groove 3-4 corresponding to the safety rope 7 is provided on the inner side of adjacent aluminum profiles. In order to improve the noise reduction ability and prevent additional noise generated by mutual collision, adjacent aluminum profiles and the sound barrier unit board 2 are attached together. By providing the relief groove 3-4, a moving space is provided for the safety rope 7. The fixed pulley at the end of the aluminum profile is the fixed pulley one 4, and the fixed pulley in the middle is the fixed pulley two 5. One end of the safety rope 7 is tied to the innermost side ( Figure 2 left side and Figure 4On the lower pulley one 4 of the aluminum profile (the lower side is the inner side), it bypasses the pulley two 5 of the innermost aluminum profile and then comes out from the relief hole 3-3. After passing through the relief groove 3-4 of the adjacent aluminum profile, it successively bypasses the pulley one 5 and the pulley 5 of the adjacent aluminum profile, and then passes through the positioning hole 3-3. Bypassing in this way, the free end of the safety rope 7 is finally tied to the pulley two 5 of the outermost ( Figure 2 the right side and Figure 4 the upper side is the outer side) aluminum profile.

[0032] As Figure 2 shown, the aluminum profile is arranged at the top of the sound barrier unit board 2. There are two sets of upper and lower pulleys on the aluminum profile, and there are corresponding upper and lower safety ropes 7 to prevent eccentric force. As a further optimization, the aluminum profile can also be arranged at the bottom of the sound barrier unit board 2, and the corresponding pulleys and safety ropes 7 are arranged.

[0033] The aluminum profile includes aluminum profile one 3-1 and several aluminum profiles two 3-2. Horizontally installed plates one 3-1-1 are symmetrically arranged at the upper and lower parts inside the aluminum profile one 3-1. Openings one 3-1-2 are symmetrically arranged at the top and bottom of the aluminum profile one 3-1. A clamping groove one 3-1-3 is arranged on the right side of the aluminum profile one 3-1; Horizontally installed plates two 3-2-1 are symmetrically arranged at the upper and lower parts inside the aluminum profile two 3-2. Openings two 3-2-2 are symmetrically arranged at the top and bottom of the aluminum profile two 3-2. A clamping groove two 3-2-3 is arranged on the right side of the aluminum profile two 3-2, and a clamping block 3-2-4 adapted to the clamping groove one 3-1-3 and the clamping groove two 3-2-3 is arranged on the left side. As Figure 6 shown, during assembly, the adjacent aluminum profiles are inserted into the clamping groove one 3-1-3 and the clamping groove two 3-2-3 through the clamping block 3-2-4. As a further optimization, tracks 10 are arranged on the inner sides of the installed plates one 3-1-1 and the installed plates two 3-2-1. Rollers 6 corresponding to the tracks 10 are arranged on the clamping block 3-2-4, and limit blocks are arranged at both ends of the tracks 10. By arranging the rollers 6, the tracks 10 and the limit blocks, on the one hand, the relative friction is reduced, and on the other hand, the limit blocks can prevent the sound barrier unit boards 2 from separating from each other.

[0034] As Figures 7-10 shown, the pulley is arranged on the outer sides of the installed plates one 3-1-1 and the installed plates two 3-2-1. The relief hole 3-3 is arranged on the right sides of the aluminum profile one 3-1 and the aluminum profile two 3-2. The relief groove 3-4 is arranged on the left side of the aluminum profile two 3-2 and is flush with the relief hole 3-3. The upper and lower ends of the aluminum profile are in the shape of ┌ ┐, which is convenient for installing the pulley and can protect the pulley when multiple sound barrier unit boards 2 are stacked up and down.

[0035] When the aluminum profiles are arranged, the innermost one is aluminum profile 3-1, and the outermost ones are all aluminum profiles 3-2, or the outermost one is aluminum profile 3-1, and the innermost ones are all aluminum profiles 3-2. The inner and outer directions are based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the indicated devices or components must have a specific orientation.

[0036] As a further optimization, automatic retraction devices are provided on the fixed pulleys at the ends of the innermost aluminum profiles and the fixed pulleys in the middle of the outermost aluminum profiles, so that the safety rope 7 is always in a taut state. The two ends are wound around the fixed pulleys at the ends of the innermost aluminum profiles and the fixed pulleys in the middle of the outermost aluminum profiles. Limiting devices for preventing the safety rope 7 from detaching are provided on the fixed pulleys. This is a conventional technical means in the mechanical field and will not be elaborated here. The automatic retraction device can be realized by means of a torsion spring, etc. This is a conventional technical means in the mechanical field and will not be elaborated here. When the automatic retraction device is not provided, the fixed pulley can be replaced by a column.

[0037] As a further optimization, an arc-shaped corner is provided at the relief hole 3-3 to reduce the wear between it and the safety rope 7. The safety rope 7 is made of steel wire rope.

[0038] As a further optimization, as Figure 5 shown, angle steels 11 are provided between the aluminum profiles at the innermost and outermost sides and / or between the inner sides of the sound barrier unit plates 2 and the webs of the steel columns 1 to prevent the sound barrier unit plates 2 from tilting during the sliding process. As a further improvement, the steel plates of the angle steels 11 in contact with the aluminum profiles at the innermost and outermost sides and / or the sound barrier unit plates 2 are in a slope shape to prevent interference with the middle sound barrier unit plates 2.

[0039] A movable sound barrier structure applicable to the ultra-long expansion joints of road bridges provided by the present invention can be normally used and exert the original effect of the sound barrier while meeting the expansion and contraction of the bridge deck of the road bridge. The sound barrier unit plates 2 are replaced from the traditional single layer to double layers, triple layers or more layers. The number of layers can be specifically set according to different expansion and contraction amounts and can be applied to long-span bridges with a very high requirement range for the expansion and contraction amount. As Figure 4 and Figure 5 shown, as the expansion joint expands, the multiple layers of the sound barrier unit plates 2 are staggered from each other and still have a good sound insulation and noise reduction effect. The adjacent aluminum profiles can be slidably clamped together, and the adjacent aluminum profiles are connected together by a safety rope 7. The length of the safety rope 7 is set to limit the movement of the sound barrier unit plates 2. At the same time, the limiting blocks at both ends of the track 10 also limit the movement of the rollers 6 to prevent the movement range of the rollers 6 from exceeding the aluminum profiles. The safety rope 7 and the limiting blocks perform double-limiting on the displacement of the sound barrier unit plates 2 to ensure that they do not fall off during the movement process.

[0040] Embodiment 2:

[0041] The difference between this embodiment and Embodiment 1 is that: there are two columns respectively located at the end and the middle on the aluminum profile to replace the fixed pulley. Both ends of several safety ropes 7 are respectively tied to the column in the middle of the inner aluminum profile and the column at the end of the outer aluminum profile, which is different from the structural form in Embodiment 1 where the safety rope 7 passes through multiple aluminum profiles and is only tied to the innermost and outermost aluminum profiles at both ends. The different structural forms of Embodiment 1 and Embodiment 2 are selectively used according to different production processes and on-site installation conditions.

[0042] As a further optimization, a fixed pulley is sleeved on the column, and an automatic retracting device is provided on the fixed pulley to keep the safety rope 7 always in a taut state. Both ends are wound around the fixed pulley, and a limiting device for preventing the safety rope 7 from detaching is provided on the fixed pulley.

[0043] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An adjustable sound barrier structure applicable to the ultra-long expansion joints of road bridges, characterized in that: It comprises a multi-layer sound barrier unit plate (2) arranged between adjacent steel columns (1), wherein an aluminum profile is fixedly arranged on the top and / or bottom of the sound barrier unit plate (2), and adjacent aluminum profiles can be relatively slidably clamped together, and adjacent aluminum profiles are connected together by a safety rope (7), so that two adjacent aluminum profiles can be relatively misaligned, and the aluminum profiles and / or sound barrier unit plates at the innermost and outermost sides are respectively connected to different steel columns (1); as the expansion joint expands, the multi-layer sound barrier unit plates (2) are staggered with each other.

2. The movable sound barrier structure applicable to the extra-long expansion joint of a road bridge according to claim 1, characterized in that: Two fixed pulleys are horizontally arranged on the aluminum profile, respectively located at the end and the middle. The safety rope (7) is passed around the fixed pulleys on the multiple aluminum profiles in sequence, and the two ends are respectively tied to the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile. A clearance hole (3-3) is arranged at a position corresponding to the middle fixed pulley on the outer side of the aluminum profile. The middle fixed pulley is arranged close to the clearance hole (3-3), and a long strip clearance groove (3-4) corresponding to the safety rope (7) is arranged on the inner side of the adjacent aluminum profile.

3. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 2, characterized in that: The fixed pulley is provided with two upper and lower groups on the aluminum profile, and is provided with two corresponding upper and lower safety ropes (7).

4. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 3, wherein: The aluminum profile comprises an aluminum profile 1 (3-1) and a plurality of aluminum profile 2 (3-2); the aluminum profile 1 (3-1) is symmetrically provided with a horizontal mounting plate 1 (3-1-1) at the upper and lower parts thereof, the aluminum profile 1 (3-1) is symmetrically provided with an opening 1 (3-1-2) at the top and bottom thereof, and the aluminum profile 1 (3-1) is provided with a clamping slot 1 (3-1-3) at the right side thereof; the aluminum profile 2 (3-2) is symmetrically provided with a horizontal mounting plate 2 (3-2-1) at the upper and lower parts thereof, the aluminum profile 2 (3-2) is symmetrically provided with an opening 2 (3-2-2) at the top and bottom thereof, the aluminum profile 2 (3-2) is provided with a clamping slot 2 (3-2-3) at the right side thereof, and a clamping block (3-2-4) adapted to the clamping slot 1 (3-1-3) and the clamping slot 2 (3-2-3) is provided at the left side thereof.

5. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 4, characterized in that: The fixed pulley is arranged on the outside of the mounting plate 1 (3-1-1) and the mounting plate 2 (3-2-1), the clearance hole (3-3) is arranged on the right side of the aluminum profile 1 (3-1) and the aluminum profile 2 (3-2), and the clearance groove (3-4) is arranged on the left side of the aluminum profile 2 (3-2) and is arranged flush with the clearance hole (3-3).

6. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 4, wherein: Tracks (10) are provided inside the first mounting plate (3-1-1) and the second mounting plate (3-2-1), rollers (6) corresponding to the tracks (10) are provided on the clamping block (3-2-4), and limit blocks are provided at both ends of the tracks (10).

7. The movable sound barrier structure applicable to the extra-long expansion joint of a road bridge according to claim 4, characterized in that: The upper and lower ends of the aluminum profile are in a ┌ ┐ shape, which is convenient for installing the fixed pulley and can protect the fixed pulley when multiple sound barrier unit panels (2) are stacked up and down.

8. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 2, characterized in that: The fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile are provided with automatic retraction devices, so that the safety rope (7) is always in a taut state, and the two ends are wound around the fixed pulley at the end of the innermost aluminum profile and the fixed pulley in the middle of the outermost aluminum profile. The fixed pulleys are provided with limit devices to prevent the safety rope (7) from escaping.

9. The movable sound barrier structure applicable to the extra-long expansion joint of a road bridge according to claim 1, wherein: The aluminum profile is provided with two columns located at the end and the middle respectively, the two ends of the safety rope (7) are respectively tied to the column in the middle of the inner aluminum profile and the column at the end of the outer aluminum profile, a clearance hole (3-3) is provided at a position corresponding to the column in the middle of the aluminum profile on the outer side surface of the aluminum profile, the column in the middle is arranged close to the clearance hole (3-3), and a long strip clearance groove (3-4) corresponding to the safety rope (7) is provided on the inner side surface of the adjacent aluminum profile.

10. The movable sound barrier structure applicable to the ultra-long expansion joint of a road bridge according to claim 9, wherein: A fixed pulley is sleeved on the column, and an automatic retraction device is provided on the fixed pulley, so that the safety rope (7) is always in a taut state, with both ends wound around the fixed pulley, and a limit device is provided on the fixed pulley to prevent the safety rope (7) from detaching.

Images