Positioning device of box girder bridge floor sound barrier

Abstract

The utility model provides a positioning device of a box girder bridge floor sound barrier, which belongs to the technical field of sound barrier installation and comprises a plurality of pairs of positioning screws and a positioning component, one end of each positioning screw is pre-buried in box girder concrete, the other end of each positioning screw extends out of the box girder concrete, and the positioning screws are uniformly arranged at intervals along the length direction of a box girder. The positioning assemblies are in one-to-one correspondence with each pair of positioning screw rods, each positioning assembly comprises a support, a first supporting plate, a limiting base plate and a first nut, the supports are fixedly installed on a steel formwork of the box girder, and the positions of the positioning screw rods are limited through the supports, the first supporting plates, the limiting base plates and the first nuts, so that the positioning screw rods are prevented from shifting and bending when box girder concrete is poured; subsequent columns of the sound barrier can be quickly positioned and installed. The installation efficiency of the sound barrier can be effectively improved, and manpower is saved.

Description

Technical Field

[0001] This utility model relates to the field of sound barrier installation technology, and more specifically, to a positioning device for a box girder bridge deck sound barrier. Background Technology

[0002] Box girder bridge deck noise barriers are an important urban environmental protection facility. Their function is to provide noise isolation for residents around the bridge. The noise barrier consists of vertical columns and horizontal baffles. The columns are spaced at a certain distance, and the baffles are located between the columns. The surface of the baffles is usually made of sound-absorbing materials, such as rubber or fiberglass, to increase the sound absorption effect.

[0003] Previously, the common installation method for bridge deck sound barriers was to directly install them onto the bridge deck using expansion bolts through through holes in the mounting plates at the bottom of the columns. However, because bridge deck sound barriers are subject to wind pressure impacts from passing vehicles, the expansion bolts would loosen after prolonged use, causing the entire sound barrier to fall off, which could easily lead to safety accidents. Therefore, this installation method has long been phased out. Nowadays, the main installation method for bridge deck sound barriers is to pre-embed reinforcing bars extending from the box girder before pouring the concrete. These reinforcing bars correspond to the mounting plates at the bottom of the sound barrier columns. Subsequently, the columns are fixed by welding them to the reinforcing bars or by welding bolts to the reinforcing bars and tightening nuts.

[0004] However, during the process of pouring concrete into the steel formwork of the box girder, the steel bars that extend out of the box girder to fix the columns often bend and shift due to the vibration of the vibrator and the compression of the concrete. This causes the installation plate of the column to misalign with the steel bars when installing the sound barrier columns, requiring the construction workers to re-drill holes and re-embed the steel bars, thus wasting manpower and reducing the installation efficiency of the sound barrier. Utility Model Content

[0005] The purpose of this invention is to provide a positioning device for a box girder bridge deck sound barrier, which can effectively improve the installation efficiency of the sound barrier and save manpower.

[0006] The present invention is achieved through the following technical solution: a positioning device for a box girder bridge deck sound barrier, comprising positioning screws and positioning components. One end of the positioning screw is embedded in the box girder concrete, and the other end extends out of the box girder concrete. Multiple pairs of positioning screws are evenly spaced along the length of the box girder. Each positioning component corresponds to one pair of positioning screws. Each positioning component includes a bracket, a first support plate, a limiting pad, and a first nut. The bracket is fixedly mounted on the steel formwork of the box girder. The first support plate is mounted on the bracket and located directly above a pair of positioning screws. The first support plate has elongated holes along its length. The end of the positioning screw extending out of the box girder simultaneously passes through an elongated hole in the first support plate. A limiting groove is formed on the top wall of the first support plate at both sides of the elongated hole's width direction. The limiting groove and the elongated hole are interconnected. A limiting pad is slidably fitted onto the positioning screw and is used to engage with the limiting groove. Limiting teeth are fixedly provided on both sides of the limiting pad. Multiple limiting tooth grooves are formed along the length of the limiting groove, engaging with the limiting teeth. The first nut is threaded onto the positioning screw and located on the upper and lower sides of the first support plate, respectively abutting against the bottom wall of the first support plate and the top wall of the limiting pad.

[0007] Furthermore, the support includes a base plate and a vertical plate. The base plate is fixedly connected to the steel formwork of the box girder by bolts. The vertical plate is perpendicular to the base plate and rotatably connected to the base plate. The rotation axis of the vertical plate is perpendicular to the base plate. The base plate is provided with a locking device for fixing the position of the vertical plate after rotation. The first support plate is detachably fixed on the vertical plate.

[0008] Furthermore, a pair of hooks are fixedly provided at one end of the first support plate near the vertical plate, and the vertical plate is evenly provided with a plurality of holes for the pair of hooks to engage.

[0009] Furthermore, a locking block is fixedly installed at the middle position of the side of the first support plate near the vertical plate, and the vertical plate is evenly provided with multiple slots for the locking block to be inserted along the height direction.

[0010] Furthermore, the first support plate is divided into a first branch plate and a second branch plate along its own length and at the middle position. A pair of hooks are respectively located on the first branch plate and the second branch plate. Inserts and slots are respectively provided on the surfaces of the first branch plate and the second branch plate that are close to each other. The inserts and slots are engaged with each other.

[0011] Furthermore, the locking component includes a rotating plate, a stud, and a second nut. The rotating plate is rotatably connected to the base plate and fixedly connected to the bottom wall of the vertical plate. The rotating plate has multiple oblong holes along its circumference, and the center point of each oblong hole coincides with the center point of the rotating plate. The stud is fixedly connected to the base plate and corresponds to each oblong hole. The stud also passes through the oblong holes. The second nut is threaded onto the stud and abuts against the rotating plate.

[0012] Furthermore, a reinforcing rod can be detachably and fixedly installed on the vertical plate. A sleeve is slidably sleeved on the reinforcing rod. The sleeve corresponds one-to-one with the positioning screw. A fixing component is provided on the sleeve to fix the position of the sleeve. A clamp is also fixedly installed on the sleeve. The clamp is used to clamp and fix the positioning screw.

[0013] Furthermore, a pair of hooks are also fixedly provided on the side of the reinforcing rod near the vertical plate, and are detachably and fixedly connected to the vertical plate by hooking into the hook hole.

[0014] Furthermore, the fastener includes a wing screw, which is threaded onto the sleeve and abuts against the reinforcing rod.

[0015] The technical solution of this utility model embodiment has at least the following advantages and beneficial effects:

[0016] 1. This utility model pre-embeds multiple pairs of positioning screws at even intervals before the box girder concrete is poured. The gap between the multiple pairs of positioning screws is measured in advance with a tape measure to ensure that it is consistent with the gap between the sound barrier columns. The position of the positioning screws is defined by a bracket, a first support plate, a limiting washer, and a first nut. The limiting teeth of the limiting washer can be engaged in the appropriate limiting tooth groove according to the different positions of the positioning screws to increase its adaptability. This can effectively prevent the positioning screws from shifting or bending during the pouring of the box girder concrete. The through holes on the mounting plate at the bottom of the sound barrier columns can then be accurately inserted into the positioning screws, achieving the purpose of rapid positioning and installation, saving manpower, and improving the installation efficiency of the sound barrier.

[0017] 2. This utility model divides the first support plate into a first branch plate and a second branch plate, and uses hooks to engage with the vertical plate's locking holes, thus achieving a detachable and fixed connection between the first support plate and the vertical plate. After loosening the first nut, the first branch plate and the second branch plate can be quickly disassembled and separated, which can effectively improve the efficiency of disassembly and assembly. The reinforcing rod, sleeve, clamp, and wing screw can further fix the positioning screw, making the positioning screw more stable. The overall structure is simple and easy to install. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the overall structure of the positioning device for the box girder bridge deck sound barrier provided by this utility model;

[0020] Figure 2 This is a structural schematic diagram of the positioning component and sound barrier of this utility model;

[0021] Figure 3 This is an exploded view of the locking component and positioning assembly used in this utility model.

[0022] Figure 4 This is an exploded view of the connection structure of the bracket and the first support plate of this utility model.

[0023] Figure 5 This is a schematic diagram illustrating the structure of the clamp used in this utility model.

[0024] Icons: 1-Positioning screw, 2-Positioning assembly, 21-Bracket, 211-Base plate, 2111-Bolt, 212-Vertical plate, 2120-Hook hole, 2121-Hook slot, 22-First support plate, 221-Elongated hole, 222-Limiting groove, 223-Limiting tooth groove, 224-Hook, 225-Hook block, 226-First branch plate, 227-Second branch plate, 2271-Insertion block, 2272-Slot, 23-Limiting pad, 231-Limiting... Positioning teeth, 24-first nut, 3-box girder concrete, 31-steel formwork, 4-locking element, 41-rotating plate, 411-waist-shaped hole, 412-pointer, 42-stud, 43-second nut, 5-reinforcing rod, 51-sleeve, 52-fixing element, 521-wing screw, 53-clamp, 531-arc-shaped card, 532-hook plate, 533-hook opening, 6-scale line, 7-sound barrier, 71-column, 711-mounting plate, 712-through hole. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0027] Example

[0028] The following description, in conjunction with specific embodiments, provides further details. Figures 1-5 As shown, this utility model is a positioning device for a box girder bridge deck sound barrier, including positioning screws 1 and positioning components 2. One end of the positioning screw 1 is pre-embedded in the concrete 3 of the box girder, and the other end extends out of the concrete 3 of the box girder. Multiple pairs of positioning screws 1 are evenly spaced along the length of the box girder. The positions of the multiple pairs of positioning screws 1 are measured using a tape measure or other measuring instruments to ensure that the distance between them and the columns 71 of the sound barrier 7 is consistent, which facilitates the subsequent positioning and installation of the sound barrier 7. The positioning components 2 correspond one-to-one with each pair of positioning screws 1. Each positioning component 2 includes a bracket 21, a first support plate 22, a limiting pad 23, and a first nut 24. The bracket 21 is fixedly installed on the steel formwork 31 of the box girder. The first support plate 22 is installed on the bracket 21 and is located directly above a pair of positioning screws 1. The first support plate 22 extends along the length of the box girder bridge deck. A long slot 221 is provided along the length direction. The ends of a pair of positioning screws 1 extending out of the box girder pass through the long slot 221 of the first support plate 22. Limiting grooves 222 are provided on the top wall of the first support plate 22 on both sides of the width direction of the long slot 221. The limiting grooves 222 are connected to the long slot 221. The limiting pad 23 is slidably sleeved on the positioning screw 1 and is used to engage with the limiting groove 222. Limiting teeth 231 are fixedly provided on both sides of the limiting pad 23. The side wall of the limiting groove 222 is provided with multiple limiting tooth grooves 223 along its own length direction that engage with the limiting teeth 231. The first nut 24 is threadedly connected to the positioning screw 1 and is located on the upper and lower sides of the first support plate 22, and is used to abut against the bottom wall of the first support plate 22 and the top wall of the limiting pad 23, respectively.

[0029] Reference Figure 2 , Figure 3The support 21 includes a base plate 211 and a vertical plate 212. The base plate 211 is fixedly connected to the steel formwork 31 of the box girder by bolts 2111. In other implementations, the base plate 211 can be directly welded to the steel formwork 31 of the box girder. The vertical plate 212 is perpendicular to the base plate 211 and rotatably connected to the base plate 211. The rotation axis of the vertical plate 212 is perpendicular to the base plate 211. The vertical plate 212 is made of U-shaped channel steel. A locking element 4 for fixing the position of the vertical plate 212 after rotation is installed on the base plate 211. The locking element 4 includes a rotating plate 41 and a stud 42. The rotating plate 41 is rotatably connected to the base plate 211 and fixedly connected to the bottom wall of the vertical plate 212, along with the second nut 43. The rotating plate 41 has multiple oblong holes 411 along its circumference, the center point of which coincides with the center point of the rotating plate 41. Studs 42 are fixedly welded to the base plate 211, corresponding one-to-one with the oblong holes 411, and also pass through the oblong holes 411. The second nut 43 is threaded onto the studs 42 and abuts against the rotating plate 41. Loosening the second nut 43 allows adjustment of the rotation angle of the vertical plate 212 for easier... The positioning screw 1 is adapted to its position, making operation simple and easy to fix. The first support plate 22 is detachably and fixedly installed on the vertical plate 212. A pair of hooks 224 are fixedly welded to one end of the first support plate 22 near the vertical plate 212. The vertical plate 212 has multiple locking holes 2120 evenly distributed along its height for the hooks 224 to engage. A locking block 225 is also fixedly welded to the middle of one side of the first support plate 22 near the vertical plate 212. The locking block 225 is cylindrical, and a guide angle is provided at the end of the locking block 225 away from the first support plate 22. The vertical plate 212 has multiple locking holes 2120 evenly distributed along its height. Multiple slots 2121 are evenly provided for inserting the locking block 225. After the locking block 225 is inserted into the slot 2121, the stability of the first support plate 22 on the vertical plate 212 can be improved. At the same time, the top wall of the base plate 211 is provided with a scale line 6 around the center of the rotating plate 41. The outer wall of the rotating plate 41 is fixedly welded with a pointer 412 pointing to the scale line 6. When rotating the vertical plate 212, the rotation angle of the rotating plate 41 and the vertical plate 212 can be accurately adjusted by observing the reading of the pointer 412 pointing to the scale line 6, thereby achieving precise positioning of the positioning screw 1.

[0030] Reference Figure 3 , Figure 4The first support plate 22 is divided into a first branch plate 226 and a second branch plate 227 along its own length and located at the middle position. A pair of hooks 224 are respectively located on the first branch plate 226 and the second branch plate 227. The surfaces of the first branch plate 226 and the second branch plate 227 that are close to each other are respectively provided with a plug 2271 and a slot 2272. The plug 2271 and the slot 2272 are engaged with each other. In this embodiment, the cross-sectional shape of the plug 2271 is square. In other embodiments, the shape of the plug 2271 can be polygonal. After the plug 2271 is inserted into the slot 2272, the stability and overall strength of the first branch plate 226 and the second branch plate 227 can be improved. The second branch plate 227 is also provided with a scale line 6 along its length. By observing the position of the limiting tooth 231 on the limiting pad 23 that is engaged with the limiting tooth groove 223 and aligned with the scale line 6, the precise positioning of the positioning screw 1 can be achieved.

[0031] Reference Figure 3 , Figure 5 A pair of hooks 224 are fixedly welded to the side of the reinforcing rod 5 near the vertical plate 212. The position of the pair of hooks 224 on the reinforcing rod 5 is consistent with that of the pair of hooks 224 on the first support plate 22, and both correspond to the locking holes 2120 on the vertical plate 212. The hook-shaped parts of the pair of hooks 224 are set opposite to each other and are detachably fixed to the vertical plate 212 by hooking into the locking holes 2120. Disassembly and installation are very convenient. The reinforcing rod 5 is generally L-shaped, and the longitudinal section of the reinforcing rod 5 is square. A sleeve 51 is slidably sleeved on the reinforcing rod 5. The sleeve 51 is connected to the positioning screw 1. In a corresponding manner, a fixing component 52 is installed on the sleeve 51 to fix the position of the sleeve 51 on the reinforcing rod 5. The fixing component 52 is a wing screw 521, which is threaded onto the sleeve 51 and abuts against the reinforcing rod 5. A clamp 53 is also fixedly installed on the sleeve 51. The clamp 53 is used to clamp and fix the positioning screw 1. One end of the two arc-shaped clips 531 of the clamp 53 is hinged to each other, and the other end is also connected by a hook plate 532 and a hook opening 533. Thus, the two arc-shaped clips 531 of the clamp 53 can be quickly closed and fixed, and can also be easily disassembled later.

[0032] The working process of this embodiment is as follows: First, before the concrete 3 of the box girder is poured, multiple pairs of positioning screws 1 are pre-embedded at even intervals. The gap between the multiple pairs of positioning screws 1 is measured in advance with a tape measure to ensure that it is consistent with the gap between the columns 71 of the sound barrier 7. Then, according to the position of each pair of positioning screws 1, the base plate 211 is fixed to a suitable position of the box girder steel formwork 31. During this period, the rotation position of the vertical plate 212 and the appropriate height of the first support plate 22 and the reinforcing rod 5 can be adjusted adaptively. Then, the second nut 43 is tightened to fix the position of the rotating plate 41 and the vertical plate 212. At the same time, the hooks 224 of the first support plate 22 and the reinforcing rod 5 are inserted into the holes 2120 to fix the position of the first support plate 22 and the reinforcing rod 5. Then, the first nut 24 is used to thread the connection to the fixed position. The positioning screw 1 is pressed against the limiting pad 23 and the first support plate 22, and is engaged with the positioning screw 1 by the clamp 53. The position of the clamp 53 is fixed by the wing screw 521, thereby limiting the position of the positioning screw 1. The limiting teeth 231 of the limiting pad 23 can be engaged in the appropriate limiting tooth groove 223 according to the position of the positioning screw 1 to increase its adaptability. Finally, the positioning screw 1 is fixed and positioned. This can effectively prevent the positioning screw 1 from shifting or bending when the box girder concrete 3 is poured. The through hole 712 on the mounting plate 711 at the bottom of the column 71 of the subsequent sound barrier 7 can be accurately inserted into the positioning screw 1 to achieve the purpose of rapid positioning and installation, save manpower and improve the installation efficiency of the sound barrier 7.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning device for a box girder bridge deck sound barrier, characterized in that: The invention comprises a positioning screw (1) and a positioning assembly (2), wherein one end of the positioning screw (1) is embedded in the box beam concrete (3), and the other end extends out of the box beam concrete (3), a plurality of pairs of the positioning screws (1) are evenly spaced along the length direction of the box beam, and the positioning assembly (2) corresponds to each pair of positioning screws (1) one by one, and the positioning assembly (2) comprises a bracket (21), a first support plate (22), a limiting pad (23) and a first nut (24), the bracket (21) is fixedly arranged on the steel formwork (31) of the box beam, the first support plate (22) is arranged on the bracket (21) and is located directly above the pair of positioning screws (1), the first support plate (22) is provided with a long strip hole (221) along the length direction, and the ends of the pair of positioning screws (1) extending out of the box beam are simultaneously penetrated by the first support plate The elongated hole (221) of the first support plate (22) is provided with a limiting groove (222) on the top wall of the first support plate (22) and at positions on both sides of the width direction of the elongated hole (221); the limiting groove (222) and the elongated hole (221) are connected to each other; the limiting pad (23) is slidably sleeved on the positioning screw (1) and is used to be snap-fitted in the limiting groove (222); limiting teeth (231) are fixedly provided on both sides of the limiting pad (23); the side walls of the limiting groove (222) are provided with a plurality of limiting tooth grooves (223) snap-fitted with the limiting teeth (231) along their own length direction; the first nut (24) is threadedly connected to the positioning screw (1) and is located on the upper and lower sides of the first support plate (22), and is used to respectively abut against the bottom wall of the first support plate (22) and the top wall of the limiting pad (23).

2. The positioning device for the box girder bridge deck sound barrier according to claim 1, characterized in that: The support (21) comprises a bottom plate (211) and a vertical plate (212); the bottom plate (211) is fixedly connected to a steel formwork (31) of a box beam by means of bolts (2111); the vertical plate (212) and the bottom plate (211) are perpendicular to each other and are rotatably connected to the bottom plate (211); the rotation axis of the vertical plate (212) and the bottom plate (211) are perpendicular to each other; a locking member (4) for fixing the position of the vertical plate (212) after rotation is arranged on the bottom plate (211); and the first support plate (22) is detachably fixedly arranged on the vertical plate (212).

3. The positioning device for the box girder bridge deck sound barrier according to claim 2 is characterized in that: A pair of hooks (224) are fixedly provided at one end of the first support plate (22) close to the vertical plate (212), and a plurality of hook holes (2120) for the pair of hooks (224) to be engaged are evenly provided on the vertical plate (212) along the height direction.

4. The positioning device for the box girder bridge deck sound barrier according to claim 3 is characterized in that: A clamping block (225) is also fixedly provided at a middle position of one side of the first support plate (22) close to the vertical plate (212), and a plurality of clamping openings (2121) for inserting the clamping block (225) are evenly provided on the vertical plate (212) along the height direction.

5. The positioning device for the box girder bridge deck sound barrier according to claim 4 is characterized in that: The first branch plate (22) is divided into a first branch plate (226) and a second branch plate (227) along its length direction and at a middle position. A pair of hooks (224) are respectively located on the first branch plate (226) and the second branch plate (227). An insert block (2271) and a slot (2272) are respectively provided on surfaces of the first branch plate (226) and the second branch plate (227) that are close to each other. The insert block (2271) and the slot (2272) are mutually engaged.

6. The positioning device for the box girder bridge deck sound barrier according to claim 2, characterized in that: The locking member (4) comprises a rotating plate (41), a stud (42) and a second nut (43); the rotating plate (41) is rotatably connected to the bottom plate (211) and fixedly connected to the bottom wall of the vertical plate (212); the rotating plate (41) is provided with a plurality of waist-shaped holes (411) along the circumferential direction; the center points of the waist-shaped holes (411) coincide with the center point of the rotating plate (41); the stud (42) is fixedly connected to the bottom plate (211) and corresponds to the waist-shaped holes (411) one by one; and the stud (42) passes through the waist-shaped holes (411); the second nut (43) is threadedly connected to the stud (42) and abuts against the rotating plate (41).

7. The positioning device for the box girder bridge deck sound barrier according to claim 3 is characterized by: The vertical plate (212) is also provided with a reinforcing rod (5) which can be detachably fixed thereon. A sleeve (51) is slidably sleeved on the reinforcing rod (5). The sleeve (51) corresponds to the positioning screw (1) one by one. A fixing piece (52) for fixing the position of the sleeve (51) is provided on the sleeve (51). A clamp (53) is also fixedly provided on the sleeve (51). The clamp (53) is used to clamp and fix the positioning screw (1).

8. The positioning device for the box girder bridge deck sound barrier according to claim 7, characterized in that: A pair of hooks (224) are also fixedly provided on one side of the reinforcing rod (5) close to the vertical plate (212), and the reinforcing rod (5) is detachably fixedly connected to the vertical plate (212) by hooking the hooks (224) into the holes (2120).

9. The positioning device for the box girder bridge deck sound barrier according to claim 7, characterized in that: The fixing member (52) comprises a butterfly screw (521), wherein the butterfly screw (521) is threadedly connected to the sleeve (51) and abuts against the reinforcing rod (5).

Images