A steel box girder wind nozzle structure, a steel box girder bridge, and a drainage system for a steel box girder bridge

Abstract

The present invention relates to a steel box girder wind nozzle structure, a steel box girder bridge and a drainage system for a steel box girder bridge, which comprises: a wind nozzle, the wind nozzle includes a top plate, an upper inclined plate and a lower inclined plate connected in sequence to form an installation opening, and the installation opening is used for installing on the steel box girder; in the length direction of the wind nozzle, a plurality of water inlet holes are spaced apart on the upper inclined plate; a drainage trough, the drainage trough is fixed to the inner side of the upper inclined plate, and the opening of the drainage trough is communicated with the plurality of water inlet holes; the drainage trough is configured to collect rainwater flowing in through the plurality of water inlet holes and discharge it from both ends of the drainage trough. When the rainfall is relatively low or at the initial stage of rainfall, the initial rainwater can all quickly enter the plurality of openings of the upper inclined plate, and the sewage is collected and led to both banks of the bridgehead through the drainage trough, which is convenient for subsequent corresponding purification treatment. Since no water inlet holes are opened at the bridge deck inspection path, the structural stress is not affected, the fatigue failure of the structure is eliminated, and the service life of the bridge is improved.

Description

Technical Field

[0001] The present invention relates to the field of steel box girders, and particularly to a steel box girder wind nozzle structure, a steel box girder bridge, and a drainage system for a steel box girder bridge. Background Art

[0002] In the initial stage of rainfall, rainwater dissolves a large amount of polluting gases in the air. When it falls, it washes the concrete road surface, making the early-stage rainwater contain a large amount of pollutants such as heavy metals, oils, and suspended solids, with a relatively high degree of pollution, even exceeding that of ordinary urban sewage. The rainwater in the middle and late stages of rainfall is basically non-polluting and meets the direct discharge standard.

[0003] In the related art, the steel box girder wind nozzle structure generally has obvious drawbacks: the opening of its water inlet holes not only occupies the inspection path space, reduces the effective width of the bridge deck, has poor economy, but also brings potential safety hazards to later maintenance. Summary of the Invention

[0004] The embodiments of the present invention provide a steel box girder wind nozzle structure, a steel box girder bridge, and a drainage system for a steel box girder bridge, which solve the problems that the opening of the water inlet holes in the related art not only occupies the inspection path space, reduces the effective width of the bridge deck, has poor economy, but also brings potential safety hazards to later maintenance.

[0005] In a first aspect, the embodiments of the present invention provide a steel box girder wind nozzle structure, which includes:

[0006] A wind nozzle, the wind nozzle includes a top plate, an upper inclined plate, and a lower inclined plate connected in sequence to form an installation opening, and the installation opening is used for installing on the steel box girder; in the length direction of the wind nozzle, the upper inclined plate is provided with a plurality of water inlet holes at intervals; a drainage groove, the drainage groove is fixed to the inner side of the upper inclined plate, and the opening of the drainage groove is communicated with the plurality of water inlet holes; the drainage groove is configured to collect the rainwater flowing in through the plurality of water inlet holes and discharge it from both ends of the drainage groove.

[0007] In some embodiments, in the width direction of the wind nozzle, one end of the top plate close to the installation opening is the highest position, and the end far from the installation opening is the lowest position.

[0008] In some embodiments, the inner bottom wall of the drainage groove is arched upward so that both ends of the drainage groove are the lowest positions.

[0009] In some embodiments, the steel box girder wind nozzle structure further includes:

[0010] A water baffle, the length direction of the water baffle is the same as the length direction of the wind nozzle, and it is fixed to the upper inclined plate, and the water baffle is located below the plurality of water inlet holes;

[0011] Along the length direction of the nozzle, a plurality of water outlet holes are spaced apart on the water baffle;

[0012] A plurality of water discharge plates, and the plurality of water discharge plates are all fixed on the outer side of the upper inclined plate;

[0013] A water discharge channel is formed between every two of the water discharge plates, and the plurality of water discharge channels correspond to the plurality of water outlet holes one by one and are communicated with the corresponding water outlet holes.

[0014] In some embodiments, the steel box girder nozzle structure further includes:

[0015] A water baffle, the length direction of the water baffle is consistent with the length direction of the nozzle, and the water baffle is fixed on the upper inclined plate, and the water baffle is located below the plurality of water inlet holes;

[0016] Along the length direction of the nozzle, a plurality of water outlet holes are spaced apart on the water baffle;

[0017] The upper inclined plate is concavely provided with a plurality of water discharge grooves towards the inside of the nozzle, and the plurality of water discharge grooves correspond to the plurality of water outlet holes one by one and are communicated with the corresponding water outlet holes.

[0018] In some embodiments, filter nets are rotatably connected at the plurality of water inlet holes, and each filter net is concavely arranged towards the drainage groove;

[0019] When the filter net is turned towards the direction close to the top plate, the garbage in the filter net is poured at the upper end of the upper inclined plate and the top plate.

[0020] In some embodiments, along the width direction of the upper inclined plate, a plurality of first stiffening ribs are fixedly spaced on the inner side of the upper inclined plate;

[0021] Along the width direction of the lower inclined plate, a plurality of second stiffening ribs are fixedly spaced on the inner side of the lower inclined plate.

[0022] In some embodiments, the nozzle further includes:

[0023] A plurality of stiffening plates, and the plurality of stiffening plates are all fixed between the inner sides of the top plate, the upper inclined plate and the lower inclined plate;

[0024] Along the length direction of the nozzle, the plurality of stiffening plates are spaced apart, and the plurality of stiffening plates are all provided with access holes.

[0025] In a second aspect, an embodiment of the present invention provides a steel box girder bridge, including two steel box girder nozzle structures as described in the above embodiments, and further including:

[0026] A steel box girder, along the width direction of the steel box girder, each end of the steel box girder is respectively fixed to one of the steel box girder nozzle structures.

[0027] In a third aspect, an embodiment of the present invention provides a drainage system for a steel box girder bridge, which includes the steel box girder bridge described in the above-mentioned embodiment 5; and further includes:

[0028] Two sedimentation tanks, which are spaced apart at both ends of the steel box girder bridge, and both ends of each drainage trough are respectively communicated with the two sedimentation tanks.

[0029] The beneficial effects brought by the technical solution provided by the present invention include: when the rainfall is low or

[0030] at the initial stage of rainfall, all the initial rainwater can quickly enter the multiple openings of the upper inclined plate, and the sewage is collected and led to both banks of the bridgehead through the drainage trough, which is convenient for subsequent corresponding purification treatment. Since no

[0031] water inlet holes are opened at the bridge deck inspection path, the structural stress is not affected, the fatigue failure of the structure is eliminated, and the service life of the bridge is improved. At the same time, the potential safety hazards of personnel maintenance on the inspection path in the later stage are also eliminated, and the safety of the bridge is greatly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] 5 In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0033]

[0034] Figure 1 It is a front view internal structure schematic diagram of the first steel box girder wind nozzle structure provided by the embodiment of the present invention;

[0035] Figure 2 Figure 1 For the left view structure schematic diagram;

[0036] Figure 3 It is a front view internal structure schematic diagram of the second steel box girder wind nozzle structure provided by the embodiment of the present invention;

[0037] Figure 4 Figure 3 For the left view structure schematic diagram;

[0038] Figure 5 It is a front view structure schematic diagram of the steel box girder bridge provided by the embodiment of the present invention.

[0039] ​In the figure: 1. Air nozzle; 11. Top plate; 12. Upper inclined plate; 121. Water inlet hole; 122. Drainage groove; 123. First stiffening rib; 13. Lower inclined plate; 131. Second stiffening rib; 14. Stiffening plate; 141. Manhole; 2. Steel box girder; 3. Drainage trough; 4. Water baffle; 41. Water outlet hole; 5. Drainage plate; 51. Drainage channel; 6. Filter screen. Detailed implementation manners

[0040] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0041] The embodiments of the present invention provide a steel box girder air nozzle structure, a steel box girder bridge and a drainage system for a steel box girder bridge, which solve the problems in the related art that the opening of the water inlet hole not only occupies the space of the inspection path, reduces the effective width of the bridge deck and has poor economy, but also brings potential safety hazards to later maintenance.

[0042] See Figure 1-2 As shown, the embodiments of the present invention provide a steel box girder air nozzle structure, which may include: an air nozzle 1, and the air nozzle 1 includes a top plate 11, an upper inclined plate 12 and a lower inclined plate 13 connected in sequence to form an installation opening. As Figure 1 shown, the installation opening faces the right side and is used for installing on the steel box girder 2; as Figure 2 shown, in the length direction of the air nozzle 1 (wherein, Figure 1 the front-back direction in

[0043] is the length direction of the air nozzle 1), a plurality of water inlet holes 121 are spaced apart on the upper inclined plate 12; a drainage trough 3, the drainage trough 3 is fixed to the inner side of the upper inclined plate 12, and the opening of the drainage trough 3 is communicated with the plurality of water inlet holes 121; the drainage trough 3 is configured to collect the rainwater flowing in through the plurality of water inlet holes 121 and discharge it from both ends of the drainage trough 3. Among them, the height of the drainage trough 3 can be determined according to the local precipitation, and the length is consistent with the longitudinal span of the air nozzle 1. Specifically, when the rainfall is low or at the initial stage of rainfall, the initial rainwater can all quickly flow from the top plate 11 to the upper inclined plate 12, enter the plurality of water inlet holes 121 on the upper inclined plate 12, and collect and lead the sewage to both banks of the bridgehead through the drainage trough 3 for subsequent corresponding purification treatment. Since no water inlet hole is opened at the bridge deck inspection path, it will not affect the structural stress, eliminate the fatigue damage of the structure, and improve the service life of the bridge. At the same time, it also eliminates the potential safety hazards of later personnel repairing at the inspection path, greatly improves the safety of the bridge, ensures the effective width of the bridge deck, and improves the economic benefits of the project.

[0044] In some embodiments, along the width direction of the air nozzle 1, one end of the top plate 11 close to the installation opening is the highest position, and the end far from the installation opening is the lowest position. Specifically, as Figure 1 shown, the left-right direction of the air nozzle 1 is the width direction of the air nozzle 1. The right end of the top plate 11 is the highest position, and its left end is the lowest position. When the rainwater on the bridge deck flows into the plurality of water inlet holes 121 through the inclined surface of the top plate 11, the drainage efficiency is improved.

[0045] In some embodiments, the inner bottom wall of the drainage groove 3 is arched upward so that both ends of the drainage groove 3 are at the lowest positions. Among them, the middle position of the drainage groove 3 can be set as the highest position, and both ends thereof are set as the lowest positions. When the rainwater volume is too large during the initial rain period, the inclined surface of the drainage groove 3 can be used to further improve the drainage efficiency of the rainwater, avoid the problem that the drainage capacity of the drainage groove 3 is weak and cause rainwater to overflow, and reduce the pollution degree of the initial rainwater. At the same time, there is no need to expand the capacity volume of the drainage groove 3 to improve the drainage capacity of the drainage groove 3, thereby further saving the use of materials and reducing its construction cost.

[0046] In some embodiments, as Figure 1 and 2 shown, the steel box girder air nozzle structure may further include: a water baffle 4, the length direction of the water baffle 4 is the same as the length direction of the air nozzle 1, and it is fixed to the upper inclined plate 12, and the water baffle 4 is located below the plurality of water inlet holes 121; along the length direction of the air nozzle 1, the water baffle 4 is provided with a plurality of water outlet holes 41 at intervals; a plurality of drain plates 5, and the plurality of drain plates 5 are all fixed to the outside of the upper inclined plate 12; a drain channel 51 is formed between every two drain plates 5, and the plurality of drain channels 51 correspond to the plurality of water outlet holes 41 one by one and are communicated with the corresponding water outlet holes 41. Among them, the water baffle 4 can block the rainwater drained from the bridge deck and flow it into the drain channel 51 to achieve the purpose of secondary drainage, avoid the formation of a water curtain between the rainwater and the upper inclined plate 12, and affect the driving vision of the vehicles on the ground. At the same time, the pollution degree is small in the middle and later stages of the rainwater. The drain channel 51 can be used to centrally discharge the rainwater into the sewers or green belts on both sides of the ground to achieve the functions of rapid drainage or irrigation.

[0047] In some embodiments, as Figure 3 and 4As shown in the figure, the steel box girder wind nozzle structure may further include: a water baffle 4, the length direction of the water baffle 4 is the same as the length direction of the wind nozzle 1, and it is fixed to the upper inclined plate 12, and the water baffle 4 is located below the plurality of water inlet holes 121; along the length direction of the wind nozzle 1, the water baffle 4 is provided with a plurality of water outlet holes 41 at intervals; the upper inclined plate 12 is recessed towards the inside of the wind nozzle 1 to form a plurality of water drainage grooves 122, and the plurality of water drainage grooves 122 correspond to the plurality of water outlet holes 41 one by one and are communicated with the corresponding water outlet holes 41. Among them, the upper inclined plate 12 can be recessed towards the inside of the wind nozzle 1 to form the water drainage grooves 122, without the need to separately add a water drainage plate 5 to achieve the purpose of secondary drainage, reducing the construction cost of the wind nozzle structure, reducing the self-weight, and realizing lightweight design. The integral stamping process is adopted, and the processing technology is simple; at the same time, the water drainage grooves 122 formed by the upper inclined plate 12 protruding towards the inside of the wind nozzle are similar to stiffeners, improving the structural strength of the wind nozzle structure and the collapse energy absorption effect when being extruded.

[0048] In some embodiments, as Figure 3 shown, a filter screen 6 is rotatably connected at each of the plurality of water inlet holes 121, and each filter screen 6 is recessed towards the drainage groove 3; when the filter screen 6 is flipped towards the direction close to the top plate 11, the garbage in the filter screen 6 can be dumped at the upper end of the upper inclined plate 12 and the top plate 11. Among them, during the rain period, domestic garbage will flow into the water inlet holes 121 along with the rainwater. At this time, the filter screen 6 can block the domestic garbage from entering the drainage groove 3, avoiding accumulation and blockage in the drainage groove 3, affecting the drainage capacity of the drainage groove 3, and at the same time avoiding the garbage from being discharged into the sedimentation tanks at both ends of the bridge, affecting the subsequent purification treatment. The staff can regularly flip the filter screen 6 up at the inspection path on the bridge deck, so as to buckle the garbage at the top of the top plate 11 and the upper inclined plate 12, facilitating the staff to pick up the garbage with tools such as tongs.

[0049] Among them, as Figure 3 shown, the left end of the filter screen 6 can be lapped on the right side of the water baffle 4, providing a certain supporting force for the filter screen 6, so as to be able to bear the weight of the garbage in it.

[0050] In some alternative embodiments, the filter screen 6 can also be fixedly installed at the water inlet holes 121.

[0051] In some embodiments, as Figure 1 shown, along the width direction of the upper inclined plate 12, a plurality of first stiffening ribs 123 are fixedly arranged at intervals on the inner side of the upper inclined plate 12, and the bearing capacity of the upper inclined plate 12 can be improved through the first stiffening ribs 123; along the width direction of the lower inclined plate 13, a plurality of second stiffening ribs 131 are fixedly arranged at intervals on the inner side of the lower inclined plate 13. Among them, the second stiffening ribs 131 can improve the supporting capacity of the lower inclined plate 13. Specifically, the length directions of the first stiffening ribs 123 and the second stiffening ribs 131 can be the same as the length direction of the wind nozzle 1.

[0052] In some embodiments, such as Figure 1 shown, the air nozzle 1 may further include: a plurality of stiffening plates 14, and the plurality of stiffening plates 14 are all fixed between the inner sides of the top plate 11, the upper inclined plate 12 and the lower inclined plate 13; along the length direction of the air nozzle 1, the plurality of stiffening plates 14 are arranged at intervals, and the plurality of stiffening plates 14 are all provided with access holes 141. Wherein, the stiffening plate 14 is welded and fixed in adaptation to the interior of the air nozzle 1. By reserving the access holes 141, it is convenient for the staff to pass between the air nozzle 1 and the stiffening plate 14 to complete the connection operation of the drainage groove 3, the first stiffening rib 123 and the second stiffening rib 131, and it is also convenient for later maintenance operations. At the same time, the plurality of stiffening plates 14 can also provide a good supporting effect on the drainage groove 3, so that the drainage groove 3 can withstand the impact force of full-pipe rainwater during heavy rain without being easily deformed and prevent local instability, meeting the stress requirements of the structure.

[0053] In some embodiments, such as Figure 5 shown, the embodiment of the present invention provides a steel box girder bridge, which may include more than two steel box girder air nozzle structures described in some embodiments, and may further include: a steel box girder 2, along the width direction of the steel box girder 2, each end of the steel box girder 2 is respectively fixed to a steel box girder air nozzle structure.

[0054] Specifically, the steel box girder air nozzle structure can be subjected to anti-rust and anti-corrosion coating treatment to ensure the service life of the drainage of the air nozzle structure; the steel box girder air nozzle structure can be prefabricated in the factory at the same time as the main box girder structure, getting rid of the drawbacks of the current construction process of first the main body and then the auxiliary drainage, shortening the construction period, and at the same time the welding quality in the factory is significantly better than that on site, simplifying the on-site construction.

[0055] In some embodiments, the embodiment of the present invention provides a drainage system for a steel box girder bridge, which may include the steel box girder bridge in the above some embodiments; and may further include: two sedimentation tanks, the two sedimentation tanks are distributed at intervals at both ends of the steel box girder bridge, and both ends of each drainage groove 3 are respectively communicated with the two sedimentation tanks.

[0056] Among them, when the rainfall is low or at the initial stage of rainfall, the rainwater passes through the cross slope of the bridge deck and then through the top plates 11 with a large slope on both sides of the box girder. Due to the large slope of the top plate 11 and the utility of the water baffle 4 at the hole edge, all the initial rainwater can quickly enter the drainage groove 3, and finally the sewage is collected and led to both banks of the approach bridge head, and finally introduced into the sedimentation tank for corresponding treatment. In the middle and late stages of rainfall, at this time the rainwater on the bridge deck is relatively clean and meets the discharge requirements. When centralized discharge is difficult, the rainwater is mainly converged together by the water baffle 4, and then quickly discharged into the river or to the ground through the drainage channel 51 or the drainage groove 122.

[0057] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. Unless otherwise clearly specified and defined, the terms "installed", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] It should be noted that in the present invention, relative terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0059] The above are only specific embodiments of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features claimed herein.

Claims

1. A steel box girder wind nozzle structure Characterized in that, It includes: A wind nozzle (1), the wind nozzle (1) includes a top plate (11), an upper inclined plate (12) and a lower inclined plate (13) connected in sequence to form an installation opening, and the installation opening is used for installing on the steel box girder (2); In the length direction of the wind nozzle (1), the upper inclined plate (12) is provided with a plurality of water inlet holes (121) at intervals; A drain trough (3), the drain trough (3) is fixed to the inner side of the upper inclined plate (12), and the opening of the drain trough (3) is communicated with a plurality of the water inlet holes (121); The drain trough (3) is configured to collect rainwater flowing in through a plurality of the water inlet holes (121) and discharge it from both ends of the drain trough (3); In the width direction of the wind nozzle (1), one end of the top plate (11) close to the installation opening is the highest position, and one end away from the installation opening is the lowest position; The inner bottom wall of the drain trough (3) is arched upward so that both ends of the drain trough (3) are at the lowest position; The steel box girder wind nozzle structure further includes: A water baffle (4), the length direction of the water baffle (4) is the same as the length direction of the wind nozzle (1), and is fixed to the upper inclined plate (12), and the water baffle (4) is located below a plurality of the water inlet holes (121); In the length direction of the wind nozzle (1), the water baffle (4) is provided with a plurality of water outlet holes (41) at intervals; A plurality of drain plates (5), and a plurality of the drain plates (5) are all fixed to the outer side of the upper inclined plate (12); A drain channel (51) is formed between every two of the drain plates (5), and a plurality of the drain channels (51) correspond to a plurality of the water outlet holes (41) one by one and are communicated with the corresponding water outlet holes (41); A filter screen (6) is rotatably connected at each of the plurality of water inlet holes (121), and each filter screen (6) is recessed into the drain trough (3); When the filter screen (6) is flipped in the direction close to the top plate (11), the garbage in the filter screen (6) is dumped at the upper end of the upper inclined plate (12) and the top plate (11).

2. The steel box girder wind nozzle structure according to claim 1, Characterized in that, In the width direction of the upper inclined plate (12), a plurality of first stiffening ribs (123) are fixedly arranged at intervals on the inner side of the upper inclined plate (12); In the width direction of the lower inclined plate (13), a plurality of second stiffening ribs (131) are fixedly arranged at intervals on the inner side of the lower inclined plate (13).

3. The steel box girder wind nozzle structure according to claim 1, Characterized in that, The wind nozzle (1) further includes: A plurality of stiffening plates (14), and a plurality of the stiffening plates (14) are all fixed between the inner sides of the top plate (11), the upper inclined plate (12) and the lower inclined plate (13); In the length direction of the wind nozzle (1), a plurality of the stiffening plates (14) are arranged at intervals, and a plurality of the stiffening plates (14) are all provided with access holes (141).

4. A steel box girder bridge, Characterized in that, It includes two steel box girder wind nozzle structures according to any one of claims 1-3, and further includes: Steel box girder (2), at each end of the steel box girder (2) in the width direction thereof, each end of the steel box girder (2) is respectively fixed to one of the steel box girder nozzle structures.

5. A drainage system for a steel box girder bridge, characterized in that, it includes the steel box girder bridge as described in claim 4; further includes: Two sedimentation tanks, the two sedimentation tanks are spaced apart and distributed at both ends of the steel box girder bridge, and both ends of each drainage trough (3) are respectively communicated with the two sedimentation tanks.

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