A fall-preventing bridge sound barrier device

Abstract

The utility model discloses a kind of anti-falling bridge sound barrier devices, it is related to bridge sound barrier technical field, including steel column, adjacent two described steel column are connected with frame and metal sound-absorbing screen body, the metal sound-absorbing screen body is located above frame, light transmission screen body is connected in the frame, the both sides of metal sound-absorbing screen body and frame are connected with sealing skin between steel column, the top of steel column is curved to the side of road surface, the metal sound-absorbing screen body is composed of upper arc sound-absorbing plate and lower straight sound-absorbing plate.The utility model of a kind of anti-falling bridge sound barrier device is provided with hole in the four corners of light transmission screen body, and using anti-falling steel wire rope is fixed on the steel column of two sides, increase the stability of light transmission screen body, even if being impacted, the situation that whole glass does not appear to fall off.

Description

Technical Field

[0001] This utility model relates to the field of bridge sound barrier technology, and more specifically to a bridge sound barrier device for preventing falls. Background Technology

[0002] Bridge noise barriers (also known as sound barriers or sound walls) are acoustic engineering facilities installed on both sides of bridges to reduce the impact of traffic noise on the surrounding environment. With the rapid development of urban transportation networks, especially the increasing number of elevated bridges, urban expressways, and highways passing through noise-sensitive areas such as residential areas, schools, and hospitals, bridge noise barriers have become an important means of urban noise control.

[0003] For example, Chinese patent application number 2024205965077 discloses a sightseeing sound barrier for bridges. This patent features stable installation and allows passengers to enjoy the scenery on both sides of the bridge through the sightseeing sound barrier.

[0004] Current bridge noise barrier devices still have the following problems in use: 1. Some bridges are equipped with transparent glass windows for easy viewing of the scenery. These windows are made of tempered glass and will not shatter into small pieces upon impact. However, there is a risk that the windows may deform and detach from the frame, increasing the risk of the windows falling and affecting safety.

[0005] 2. To improve sound insulation, bridge sound barrier devices are designed with an inwardly curved top. Since the sound barrier is located between two columns, the curved top part can affect the replacement of the sound barrier. In addition, the columns and the sound barrier are usually connected by bolts, which not only requires a large number of bolts, but also increases the complexity of replacement and maintenance time.

[0006] Therefore, it is necessary to propose a sound barrier device for preventing bridge falls to solve the above problems. Utility Model Content

[0007] To address the above problems, this utility model provides a bridge sound barrier device that prevents falls, improves the installability of the light-transmitting screen body, avoids the situation of the whole body falling off, and facilitates the replacement of internal components.

[0008] To achieve the above objectives, this utility model specifically adopts the following technical solution: A sound barrier device for preventing falls on bridges includes steel columns, a frame and a metal sound-absorbing screen connected between two adjacent steel columns, the metal sound-absorbing screen being located above the frame, a light-transmitting screen being connected inside the frame, and sealing skins connecting the metal sound-absorbing screen and the frame to the steel columns on both sides. The top of the steel column is bent towards the road surface. The metal sound-absorbing screen consists of an upper arc-shaped sound-absorbing plate and a lower upright sound-absorbing plate. The upper arc-shaped sound-absorbing plate is located at the top bend of the steel column, and a groove is formed at the bottom of the upper arc-shaped sound-absorbing plate. A boss that mates with the groove is formed at the top of the lower upright sound-absorbing plate. Holes are provided at the four corners of the light-transmitting screen. Anti-fall steel wire ropes are connected to both sides of the steel column. One end of the anti-fall steel wire rope is bolted to the holes at the four corners of the light-transmitting screen. A raised plate located below the frame is connected to the bottom of the steel column.

[0009] Preferably, since the biggest drawback of glass fiber cotton is its loose structure and low strength, in order to improve its fixing ability, both the upper arc-shaped sound-absorbing plate and the lower upright sound-absorbing plate are composed of glass fiber cotton. The side of the glass fiber cotton closest to the road surface is connected to a microporous aluminum plate through a connector, and the side of the glass fiber cotton away from the road surface is connected to a galvanized steel plate through a connector. The two ends of the microporous aluminum plate and the galvanized steel plate extend to the upper and lower ends of the glass fiber cotton and are fixed by connectors. Glass fiber cloth is connected between the galvanized steel plate and the microporous aluminum plate and the glass fiber cotton.

[0010] Preferably, to facilitate the replacement of the metal sound-absorbing panel, an extension plate is connected to the side of the steel column closest to the road surface, and a supplementary plate is connected to the side of the steel column away from the road surface. A partition plate is connected between the extension plate and the supplementary plate, and the upper arc-shaped sound-absorbing plate and the lower upright sound-absorbing plate are inserted from the top of the steel column.

[0011] Preferably, to increase the fixing capacity, the top of the extended plate is provided with a bending part, the top of the upper arc-shaped sound-absorbing plate and the bending part is fitted with an upper cover plate, the top of the upper cover plate is fitted with an upper cover sleeve plate, and the two ends of the upper cover sleeve plate are connected to the bending part and the supplementary plate by connectors.

[0012] Preferably, in order to improve overall stability, the bottom of the steel column is connected to a base plate, and the bottom of the base plate is provided with an embedded plate. The base plate and the embedded plate are connected by bolts, and the embedded plate is connected to the concrete crash barrier of the road surface.

[0013] Preferably, to improve the waterproofness and aesthetics of the bottom, an inner lower cover plate is connected to the bottom of the steel column on the side closest to the road surface, and an outer lower cover plate is connected to the bottom of the steel column on the side furthest from the road surface. The bottoms of the inner and outer lower cover plates are in contact with the concrete crash barrier, and starting end sealing plates are connected to the bottoms of the steel columns at both ends.

[0014] Preferably, in order to improve the tightness of the connection between the frame and the metal sound-absorbing screen, through holes are provided on both sides of the frame and the metal sound-absorbing screen. Safety steel wire ropes are inserted into the through holes, and the upper and lower ends of the safety steel wire ropes extend out of the frame and the metal sound-absorbing screen and are fixed by bolts.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This device has holes at the four corners of the light-transmitting screen and uses anti-fall steel wire ropes to fix it to the steel columns on both sides, which increases the stability of the light-transmitting screen and prevents the entire glass from falling off even if it is hit.

[0016] 2. This device has non-contact supplementary plates and extension plates on the top of the steel columns. The openings make it easy to place the frame and metal sound-absorbing screen into the area of ​​two adjacent steel columns, which improves the convenience of replacement. At the same time, the top cover plate that is easy to remove can block water and prevent rainwater from entering the gaps.

[0017] 3. This device incorporates a safety steel wire rope component between the frame and the metal sound-absorbing screen, increasing the connection between the two and effectively preventing gaps, thus improving sound insulation. Attached Figure Description

[0018] Figure 1 This is the overall front view of this utility model; Figure 2 This is a side view of the entire invention. Figure 3 This is a schematic diagram of the glass fiber cotton and microporous aluminum plate structure in this utility model; Figure 4 This is a schematic diagram of the upper arc-shaped sound-absorbing plate and the bent part structure of this utility model; Figure 5 This is a schematic diagram of the extended plate and supplementary plate structure in this utility model; Figure 6 This is a schematic diagram of the installation process of this utility model.

[0019] Figure label: 101. Steel column; 102. Frame; 103. Metal sound-absorbing panel; 104. Light-transmitting panel; 105. Sealing skin; 106. Upper curved sound-absorbing panel; 107. Lower upright sound-absorbing panel; 108. Fiberglass wool; 109. Microporous aluminum plate; 110. Galvanized steel plate; 111. Extension plate; 112. Supplementary plate; 113. Divider plate; 114. Bending section; 115. Top cover plate; 116. Top cover sleeve plate; 117. Fall protection steel wire rope; 118. Base plate; 119. Embedded plate; 120. Inner lower cover plate; 121. Outer lower cover plate; 122. Safety steel wire rope; 123. Elevation plate; 124. Starting end sealing plate. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In this case, the selection of materials, heat treatment processes, and structural dimensions of conventional and critical load-bearing components all conform to standards. The existing material properties are all suitable for use under this condition, ensuring sufficient strength, stiffness, and fatigue resistance under rated load and expected operating conditions, such as springs. These are all conventional design considerations well known to those skilled in the art.

[0022] Please see Figure 1-6A sound barrier device for preventing falls on bridges includes steel columns 101. A frame 102 and a metal sound-absorbing screen 103 are connected between two adjacent steel columns 101. Multiple steel columns 101 are arranged at equal intervals. The frame 102 and the metal sound-absorbing screen 103 are located between two adjacent steel columns 101. The metal sound-absorbing screen 103 is located above the frame 102. A light-transmitting screen 104 is connected inside the frame 102. The light-transmitting screen 104 is preferably tempered glass, which allows people in vehicles to observe the surrounding scenery through the light-transmitting screen 104. Both sides of the metal sound-absorbing screen 103 and the frame 102 are connected to the steel columns 101 with sealing skins 105. The sealing skins 105 are specifically 7-shaped sealing skins 105, which are existing rubber structures. They play a supporting role in the gaps, preventing direct contact with the steel columns 101, and at the same time, increasing the waterproofing capacity of the gaps. The top of the steel column 101 is bent towards one side of the road surface and inwards. The metal sound-absorbing screen 103 consists of an upper arc-shaped sound-absorbing plate 106 and a lower upright sound-absorbing plate 107. The upper arc-shaped sound-absorbing plate 106 is located at the curved top of the steel column 101. Due to the curved top of the steel column 101, the curved design of the upper arc-shaped sound-absorbing plate 106 can better adapt to its shape. The bottom of the upper arc-shaped sound-absorbing plate 106 has a groove, and the top of the lower upright sound-absorbing plate 107 has a boss that mates with the groove, facilitating the connection between the two. In one embodiment, the bottom of the lower upright sound-absorbing plate 107 also has a groove, allowing multiple lower upright sound-absorbing plates 107 to be connected when the steel column 101 is too high. The light-transmitting screen 104 has holes at its four corners. Fall protection steel wire ropes 117 are connected to both sides of the steel column 101. One end of each fall protection steel wire rope 117 is connected to the steel column 101 via bolts or other components, and the other end is fixed to the light-transmitting screen 104. The use of bolts and other connectors for fixing the steel wire ropes is a well-established structure and will not be elaborated further here. One end of each fall protection steel wire rope 117 is bolted into the holes at the four corners of the light-transmitting screen 104. A raised platform 123 located below the frame 102 is connected to the bottom of the steel column 101. The raised platform 123 supports the bottom of the frame 102, creating a certain gap between the bottom plate 118 and the frame 102, facilitating connection and installation.

[0023] The anti-fall steel wire ropes 117 at the four corners restrict the light-transmitting screen 104, preventing it from falling off completely even if it is impacted, thus increasing overall safety.

[0024] Preferably, since the biggest weakness of the glass fiber cotton 108 is its loose structure and low strength, in order to improve its fixing ability, both the upper arc-shaped sound-absorbing plate 106 and the lower upright sound-absorbing plate 107 are composed of glass fiber cotton 108. The function of the glass fiber cotton 108 is heat insulation and sound insulation. The side of the glass fiber cotton 108 closest to the road surface is connected to a microporous aluminum plate 109 through a connector. The microporous aluminum plate 109 absorbs traffic noise such as vehicle engine and tire friction noise through "microporous structure + material properties", rather than simply blocking it, thus avoiding noise reflection on the barrier surface and forming "secondary pollution". The side of the glass fiber cotton 108 furthest from the road surface is connected to a galvanized steel plate 110 through a connector. The galvanized steel plate 110 is the "sound insulation body" of the sound barrier, forming an "absorption-insulation" combination with the "sound absorption" function of the microporous aluminum plate 109, blocking the noise propagation path. The microporous aluminum plate 109 and galvanized steel plate 110 extend to the upper and lower ends of the fiberglass wool 108 and are fixed by connectors. Specifically, the upper and lower sides of the microporous aluminum plate 109 and galvanized steel plate 110 extend to wrap around the fiberglass wool 108 in the middle and are fixed by connectors such as rivets and bolts. To further enhance the protective effect on the fiberglass wool 108, fiberglass cloth is connected between the galvanized steel plate 110 and the microporous aluminum plate 109 and the fiberglass wool 108. While the fiberglass wool 108 offers advantages in heat and sound insulation, it is relatively weak in structural strength, waterproofing, and environmental resistance. The fiberglass cloth wrapped around the outside specifically strengthens these aspects, making the composite structure more adaptable to complex environments, thereby enhancing waterproofing and moisture resistance, and improving corrosion resistance and aging resistance.

[0025] Preferably, to facilitate the replacement of the metal sound-absorbing screen 103, an extension plate 111 is connected to the side of the steel column 101 closest to the road surface, and a supplementary plate 112 is connected to the side of the steel column 101 furthest from the road surface. The tops of the extension plate 111 and the supplementary plate 112 are not connected, and the opening allows the frame 102 and the metal sound-absorbing screen 103 to be inserted from the top. A partition plate 113 connects the extension plate 111 and the supplementary plate 112, and the upper arc-shaped sound-absorbing plate 106 and the lower upright sound-absorbing plate 107 are inserted from the top of the steel column 101. This method of inserting and removing from the top facilitates the replacement of the frame 102 and the metal sound-absorbing screen 103.

[0026] Preferably, refer to Figure 5To increase the fixing capacity, the top of the extended plate 111 is provided with a bent portion 114, which is connected to the top of the partition plate 113. The top of the upper arc-shaped sound-absorbing plate 106 and the bent portion 114 are fitted with an upper cover plate 115, which provides protection and fixing to the top. The top of the upper cover plate 115 is fitted with an upper cover sleeve plate 116, and the two ends of the upper cover sleeve plate 116 are connected to the bent portion 114 and the supplementary plate 112 by connectors. The upper cover sleeve plate 116 serves to reinforce and fix the plate, while also preventing rainwater from entering.

[0027] Preferably, to improve overall stability, the bottom of the steel column 101 is connected to a base plate 118, and the bottom of the base plate 118 is provided with an embedded plate 119. Through holes are provided on the base plate 118 and the embedded plate 119 to facilitate connection by bolts. The base plate 118 and the embedded plate 119 are connected by bolts, and the embedded plate 119 is connected to the concrete crash barrier of the road surface. The embedded plate 119 is fixed to the top of the concrete crash barrier by dedicated fixing bolts.

[0028] Preferably, to improve the waterproofing and aesthetics of the bottom, an inner lower cover plate 120 is connected to the bottom of the steel column 101 on the side closest to the road surface, and an outer lower cover plate 121 is connected to the bottom of the steel column 101 on the side furthest from the road surface. This covers the connection between the steel column 101 and the concrete crash barrier, preventing rainwater from entering and improving aesthetics. The bottoms of the inner lower cover plate 120 and the outer lower cover plate 121 are in contact with the concrete crash barrier. Starting end sealing plates 124 are connected to the bottoms of the steel columns 101 at both ends, protecting the bolt connections at the bottoms of the steel columns 101 at both ends.

[0029] Figure 6 The image shows the installation process, which is not yet complete. The inner lower cover 120 and outer lower cover 121 at the bottom are not fully installed, and the protruding safety wire rope 122 at the top has not been secured.

[0030] Preferably, to improve the tightness of the connection between the frame 102 and the metal sound-absorbing screen 103, through holes are provided on both sides of the frame 102 and the metal sound-absorbing screen 103. Since the upper arc-shaped sound-absorbing plate 106 is arc-shaped, the through holes inside are also arc-shaped. A safety steel wire rope 122 is threaded through the through holes. The upper and lower ends of the safety steel wire rope 122 extend out of the frame 102 and the metal sound-absorbing screen 103 and are fixed with bolts. Connecting the frame 102 and the metal sound-absorbing screen 103 with the safety steel wire rope 122 avoids gaps that could affect the sound insulation effect.

[0031] In this embodiment, the embedded plate 119 is embedded into the concrete crash barrier wall, and the steel column 101 is connected to the embedded plate 119 using bolts. The frame 102, the lower upright sound-absorbing plate 107, and the upper arc-shaped sound-absorbing plate 106 are placed between two adjacent steel columns 101 in sequence. The upper cover plate 115 is placed on the upper arc-shaped sound-absorbing plate 106 and the bent part 114, and the connection between the upper cover plate 115 and the bent part 114 is fixed using fasteners. The safety wire rope 122 is then threaded through... The light-transmitting screen 104 is fixed to the steel column 101 using bolts through the through holes on both sides of the frame 102 and the metal sound-absorbing screen 103; the upper cover plate 116 is placed on the upper cover plate 115, and the two ends of the upper cover plate 116 are fixed to the bent part 114 and the supplementary plate 112 using fasteners; the light-transmitting screen 104 is fixed to the steel column 101 using anti-fall steel wire rope 117, and the inner lower cover plate 120 and the outer lower cover plate 121 are fixed to the bottom sides of the steel column 101. At this point, the installation work is completed.

[0032] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A sound barrier device for preventing falls from bridges, comprising steel columns (101), characterized in that: A frame (102) and a metal sound-absorbing screen (103) are connected between two adjacent steel columns (101). The metal sound-absorbing screen (103) is located above the frame (102). A light-transmitting screen (104) is connected inside the frame (102). Both sides of the metal sound-absorbing screen (103) and the frame (102) are connected to the steel columns (101) by sealing skins (105). The top of the steel column (101) is bent towards the road surface. The metal sound-absorbing screen (103) is composed of an upper arc-shaped sound-absorbing plate (106) and a lower upright sound-absorbing plate (107). The upper arc-shaped sound-absorbing plate (106) is located at the top bend of the steel column (101). The bottom of the upper arc-shaped sound-absorbing plate (106) is provided with a groove. The top of the lower upright sound-absorbing plate (107) is provided with a boss that matches the groove. The four corners of the light-transmitting screen (104) are provided with holes. The two sides of the steel column (101) are connected with anti-fall steel wire ropes (117). One end of the anti-fall steel wire rope (117) is connected to the holes at the four corners of the light-transmitting screen (104) by bolts. The bottom of the steel column (101) is connected to a pad plate (123) located below the frame (102).

2. The bridge sound barrier device for preventing falls according to claim 1, characterized in that: The upper arc-shaped sound-absorbing panel (106) and the lower upright sound-absorbing panel (107) are both composed of glass fiber cotton (108). The side of the glass fiber cotton (108) closest to the road surface is connected to a micro-perforated aluminum plate (109) through a connector. The side of the glass fiber cotton (108) away from the road surface is connected to a galvanized steel plate (110) through a connector. The two ends of the micro-perforated aluminum plate (109) and the galvanized steel plate (110) extend to the upper and lower ends of the glass fiber cotton (108) and are fixed by connectors. Glass fiber cloth is connected between the galvanized steel plate (110) and the micro-perforated aluminum plate (109) and the glass fiber cotton (108).

3. The bridge sound barrier device for preventing falls according to claim 2, characterized in that: An extension plate (111) is connected to the side of the steel column (101) closest to the road surface, and a supplementary plate (112) is connected to the side of the steel column (101) away from the road surface. A partition plate (113) is connected between the extension plate (111) and the supplementary plate (112). An upper arc-shaped sound-absorbing plate (106) and a lower upright sound-absorbing plate (107) are inserted from the top of the steel column (101).

4. The bridge sound barrier device for preventing falls according to claim 3, characterized in that: The top of the extended plate (111) is provided with a bent part (114), and the top of the upper arc-shaped sound-absorbing plate (106) and the bent part (114) are fitted with an upper cover plate (115). The top of the upper cover plate (115) is fitted with an upper cover sleeve plate (116). The two ends of the upper cover sleeve plate (116) are connected to the bent part (114) and the supplementary plate (112) by connectors.

5. A bridge sound barrier device for preventing falls according to claim 4, characterized in that: The bottom of the steel column (101) is connected to a base plate (118), and the bottom of the base plate (118) is provided with an embedded plate (119). The base plate (118) and the embedded plate (119) are connected by bolts, and the embedded plate (119) is connected to the concrete anti-collision wall of the road surface.

6. A bridge sound barrier device for preventing falls according to claim 5, characterized in that: The bottom of the steel column (101) near the road surface is connected to an inner lower cover plate (120), and the bottom of the steel column (101) away from the road surface is connected to an outer lower cover plate (121). The bottoms of the inner lower cover plate (120) and the outer lower cover plate (121) are in contact with the concrete crash barrier. The bottoms of the steel columns (101) at both ends are connected to a starting end sealing plate (124).

7. A bridge sound barrier device for preventing falls according to claim 6, characterized in that: The frame (102) and the metal sound-absorbing screen (103) have through holes on both sides, and a safety steel wire rope (122) is inserted through the through holes. The upper and lower ends of the safety steel wire rope (122) extend out of the frame (102) and the metal sound-absorbing screen (103) and are fixed by bolts.

Images