CN113811655B - Pier protection structure and position angle calculation method thereof - Google Patents
Pier protection structure and position angle calculation method thereof Download PDFInfo
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- CN113811655B CN113811655B CN202080017938.8A CN202080017938A CN113811655B CN 113811655 B CN113811655 B CN 113811655B CN 202080017938 A CN202080017938 A CN 202080017938A CN 113811655 B CN113811655 B CN 113811655B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/20—Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
- E02B3/26—Fenders
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/10—Geometric CAD
- G06F30/13—Architectural design, e.g. computer-aided architectural design [CAAD] related to design of buildings, bridges, landscapes, production plants or roads
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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Abstract
A pier protection structure and a position angle calculating method thereof. The bridge pier protection structure comprises a protection bracket (4) and a blocking net (46) which are arranged at the upstream of the bridge; the protective bracket (4) comprises a first anti-slide pile (41), a second anti-slide pile (42) and a third anti-slide pile (43) which are parallel to each other and are arranged at intervals in a triangular shape, the distance between every two anti-slide piles is equal, and a roller (45) is rotatably sleeved outside the upper side of each anti-slide pile; the protective bracket (4) further comprises three cross beams (44), the three cross beams (44) correspondingly connect the three anti-slide piles in pairs, and the cross beams (44) and the roller (45) are arranged at intervals along the up-down direction of the anti-slide piles; both ends of the blocking net (46) are used for being connected with the bridge pier (2), and the blocking net (46) is sleeved on the protection bracket (4) and is contacted with the rollers (45) of the three anti-slide piles. The position angle calculating method is used for calculating the angle of the protective structure when the protective bracket (4) is most stable. The scheme can block the impact objects, and reduce the stress of the bridge pier when flood occurs.
Description
Technical Field
The invention relates to bridge engineering, in particular to a bridge pier protection structure and a position angle calculating method thereof.
Background
In recent years, flood in southern China frequently occurs, and a plurality of places of flood exceeds the historical water level, and the flood causes collapse of a plurality of bridges due to the fact that: when flood occurs, the bridge pier crossing the channel is often damaged by the impact of the water surface floaters, and meanwhile, the debris flow caused by the flood can impact the bridge pier, so that the overall stability of the bridge is affected. Especially in the mountain gorge valley area, the bridge pier is extremely inconvenient to maintain, so that the bridge pier protection plays an important role.
In the prior art, a protection device is often arranged on a pier. The protection device only plays a role in buffering impact force, and the final impact force still needs to be borne by the bridge pier, and if the floating material is large in quantity, damage to the bridge pier still occurs. Secondly, the floats are positioned on the water surface and often positioned in the middle of the channel, so that the floats are difficult to clean, and the damage to a plurality of buildings or structures along the way is easy to continuously cause. Therefore, it is desirable to provide a barrier protection system that can effectively intercept and remove floats in time, and that can protect a building or structure.
Disclosure of Invention
The invention aims at: aiming at the problems existing in the prior art, the bridge pier protection structure and the position angle calculating method thereof are provided.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the bridge pier protection structure is arranged at the upstream of a bridge and comprises a protection bracket and a blocking net; the protective bracket comprises a first anti-slide pile, a second anti-slide pile and a third anti-slide pile which are parallel to each other and are arranged at intervals in a triangular shape, the distance between every two anti-slide piles is equal, and a roller is rotatably sleeved outside the upper side of each anti-slide pile; the protective bracket further comprises three cross beams, the three cross beams correspondingly connect the three anti-slide piles in pairs, and the cross beams and the roller are arranged at intervals along the up-down direction of the anti-slide piles; the two ends of the blocking net are used for being connected with the bridge pier, and the blocking net is sleeved on the protection support and is contacted with the rollers of the three anti-slide piles. According to the bridge pier protection structure provided by the invention, when an impact object is generated, the impact object is intercepted by the blocking net, the blocking net is impacted to avoid impacting the bridge pier, in addition, the stress of the blocking net is transmitted to the bridge pier through the net body, so that a force opposite to the direction of flood is applied to the bridge pier, and the effect of protecting the bridge pier is further achieved through the impact of the impact object. Meanwhile, the impact objects can be collected at the blocking net, so that the subsequent cleaning of the impact objects is facilitated. The roller is arranged on the outer surface of the anti-slide pile, so that an impact object impacts the blocking net, when the blocking net is deformed, friction between the blocking net and the anti-slide pile is rolling friction, sliding friction between the blocking net and the anti-slide pile is avoided, damage of the blocking net in repeated reciprocating friction is reduced, the blocking net is protected, and the service life of the blocking net is prolonged. Three slide-resistant piles are connected into an integral structure through the cross beam, so that independent stress of each slide-resistant pile can be avoided, and the whole protective structure is more stable.
Optionally, the first anti-slide pile is disposed close to the pier, and the second anti-slide pile and the third anti-slide pile are disposed away from the pier.
Optionally, the direction of the connecting line between the second slide-resistant pile and the third slide-resistant pile is perpendicular to the water flow direction.
Optionally, a plurality of pull rings are arranged at two ends of the blocking net, a plurality of drag hooks are arranged on the bridge pier, and the pull rings are correspondingly connected with the drag hooks.
Optionally, the blocking net is a steel wire net.
Optionally, the barrier net comprises an elastic member. Through setting up the elastic component on blocking the net, the pulling force that the impact object acted on blocking the net passes through the elastic component shock attenuation back and transmits for the pier, makes the blocking net pulling force that the pier received slowly change, reduces the impact.
Optionally, the elastic element comprises a plurality of springs arranged at the edge of the blocking net, and the springs are used for being connected with the bridge pier.
The position angle calculation method of the bridge pier protection structure comprises the steps that a first slide-resistant pile is arranged close to a bridge pier, a second slide-resistant pile and a third slide-resistant pile are arranged far away from the bridge pier, a straight line passing through the first slide-resistant pile in a horizontal plane and perpendicular to the water flow direction is used as a reference direction, an included angle between a connecting line between the first slide-resistant pile and the second slide-resistant pile and the reference direction is a first included angle, an included angle between the connecting line between the first slide-resistant pile and the third slide-resistant pile and the reference direction is a second included angle, an impact object acts between the second slide-resistant pile and the third slide-resistant pile, and the position angle calculation method is used for calculating the size of the first included angle when a protection support of the bridge pier protection structure is most stable;
the position angle calculation method comprises the following steps:
according to the maximum pulling resistance provided by each slide-resistant pile, calculating the anti-overturning moment provided by the protective bracket, wherein the anti-overturning moment is a function of a first included angle and a second included angle;
converting the anti-overturning moment into a function related to a first included angle according to equal pile spacing among the three anti-skidding piles;
the anti-overturning moment takes the maximum value, and the corresponding first included angle is the first included angle when the protective bracket is the most stable, namely the first included angle when the protective effect is the best. According to the position angle calculating method provided by the invention, the protection structure can be arranged according to the pulling resistance of the slide pile at what angle, so that the protection support is most stable, and the optimization of the protection effect is facilitated.
Optionally, the anti-overturning moment is:
W＝FLsinA+FLsinB
wherein W is anti-overturning moment;
f is the maximum pulling resistance which each slide-resistant pile can provide;
l is the distance between pile centers of two anti-slide piles;
a is a first included angle;
and B is a second included angle, and B=120-A.
Alternatively, W reaches a maximum value when a=60°, the protective stent is most stable.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows: after flood occurs, a part of the blocking net facing the water flow direction blocks the impact objects, the blocking net in the section generates pulling force after being impacted by the impact objects, the pulling force is transmitted to the bridge piers through the blocking net, and the pulling force opposite to the water flow direction acts on the bridge piers, so that the flood impact force suffered by a part of bridge piers is counteracted.
Three slide-resistant piles are fixedly connected into a whole through the cross beam, so that the whole protective bracket is more stable, and overturning is avoided.
The elastic piece is arranged on the blocking net, so that when an impact object impacts, the tensile force generated by the bridge can be transmitted to the bridge pier after being damped, the tensile force applied to the bridge pier by the blocking net is slowly changed, and the impact effect is reduced.
The method for calculating the position angle of the bridge pier protection structure can obtain the position angle of the protection structure when the protection support is the most stable, thereby providing more powerful protection for the bridge pier.
Drawings
Fig. 1 is a plan view of a pier protecting structure according to an embodiment of the present invention.
Fig. 2 is a schematic view of a pier protecting structure in a vertical plane according to an embodiment of the present invention.
Fig. 3 is a schematic view of a pier protecting structure according to an embodiment of the present invention when blocking an impact object.
Fig. 4 is a schematic view of another bridge pier protecting structure according to an embodiment of the present invention in a vertical plane.
Fig. 5 is a simplified stress schematic diagram of the pier protection structure according to the embodiment of the invention when the first included angle is arbitrary.
Fig. 6 is a simplified stress diagram of the pier protection structure according to the embodiment of the present invention when the first included angle takes 60 °.
Icon: 1-a channel; 2-pier; 21-a pull ring; 4-a protective bracket; 41-a first slide-resistant pile; 42-a second slide-resistant pile; 43-third slide-resistant pile; 44-a cross beam; 45-roller; 46, blocking nets; 461-springs; 8-impactors.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Examples
Referring to fig. 1-6, an embodiment of the present invention provides a bridge pier 2 protecting structure, which is disposed in a channel 1 and located upstream of a bridge, and includes a protecting bracket 4 and a blocking net 46. The protective bracket 4 comprises a first slide-resistant pile 41, a second slide-resistant pile 42 and a third slide-resistant pile 43 which are parallel to each other and are arranged at a triangular interval. Specifically, each slide-resistant pile is arranged along the vertical direction, and the lower end of each slide-resistant pile is inserted into the river bed. The distance between every two anti-slide piles is equal, the distance between the anti-slide piles refers to the distance between pile centers of the anti-slide piles, namely, the distance between the central axes of the two anti-slide piles is equal, and as can be known, the projection of the central axes of the three anti-slide piles on a horizontal plane forms three points which are three vertexes of an equilateral triangle. The outside of the upper side of each slide-resistant pile is rotatably sleeved with a roller 45, and the roller 45 can rotate relative to the slide-resistant pile around the central axis direction of the slide-resistant pile.
The protective bracket 4 also comprises three cross beams 44, and the three cross beams 44 correspondingly connect the three slide resistance piles in pairs. Specifically, the ends of the cross beam 44 are fixedly connected to the slide posts. It will be appreciated that the projections of the three beams 44 on the horizontal plane constitute the three sides of an equilateral triangle.
In other embodiments, the number of the cross beams 44 may be more than three, for example, two or more cross beams 44 are disposed between every two anti-skid piles, so that the overall stability of the protection structure is further enhanced, and thus, the number of the cross beams 44 is six, nine, etc.
The cross beam 44 and the roller 45 are arranged at intervals along the up-down direction of the slide-resistant pile, so that the roller 45 and the cross beam 44 do not interfere with each other.
The two ends of the blocking net 46 are used for being connected with the bridge pier 2, and the blocking net 46 is sleeved on the protection support 4 and is contacted with the rollers 45 of the three anti-slide piles. Specifically, the blocking net 46 has a generally triangular structure as a whole, and the blocking net 46 is in a stretched state, that is: under the condition of not being acted by the impact object 8, the blocking net 46 also has initial tension, so that the net body of the blocking net 46 is straightened, the blocking net 46 can keep stable in shape, meanwhile, contact pressure exists between the blocking net 46 and the roller 45, when the blocking net 46 generates displacement under the action of the impact object 8, the roller 45 can rotate along with the blocking net 46 under the action of static friction force, and when the impact object 8 acts, the blocking net 46 can immediately transmit the impact force of the impact object 8 to the bridge pier 2, and the protection effect on the bridge pier 2 is rapidly achieved.
Further, the first slide-resistant pile 41 is disposed close to the pier 2, and the second slide-resistant pile 42 and the third slide-resistant pile 43 are disposed away from the pier 2. Wherein, the arrangement of the first slide-resistant pile 41 near the pier 2 means: the distance between the first anti-skid pile 41 and the pier 2 is closer than the second anti-skid pile 42 and the third anti-skid pile 43. It will be appreciated that in this configuration the blocking net 46 intercepts the striker 8 principally by its section between the second and third anti-slide piles 42, 43.
Further, the direction of the connection line between the second anti-slide pile 42 and the third anti-slide pile 43 is perpendicular to the water flow direction, in other words, the direction of the net surface of the blocking net 46 located at a section between the second anti-slide pile 42 and the third anti-slide pile 43 is perpendicular to the water flow direction, when the impact object 8 flows down along with the water flow, the blocking net 46 faces the flowing down direction of the impact object 8, and the impact object 8 is blocked. It should be noted that the vertical direction in this embodiment may be substantially vertical, that is, a certain offset may be allowed in a certain range around 90 ° in view of installation errors, for example, the angle between the line direction of the second anti-slide pile 42 and the third anti-slide pile 43 and the water flow direction is 80 ° -100 °.
Specifically, in some embodiments, the end of the blocking net 46 is provided with a plurality of pull rings 21, and the bridge pier 2 is provided with a plurality of drag hooks, and the drag hooks are correspondingly connected with the pull rings 21.
In some embodiments, elastic members may be further disposed on the blocking net 46, specifically, the edge of the blocking net 46 is provided with elastic members, and the ends of the elastic members are provided with pull rings 21 for connecting with the bridge pier 2. The elastic member may be provided as springs 461, and the number of springs 461 may be plural.
The embodiment of the invention also provides a position angle calculating method of the bridge pier 2 protection structure, which is used for calculating the position of the bridge pier 2 protection structure when the protection support 4 provided by the bridge pier 2 protection structure is the most stable, and specifically:
the straight line passing through the first slide-resistant pile 41 in the horizontal plane and perpendicular to the water flow direction is taken as a reference direction, the included angle between the connecting line between the first slide-resistant pile 41 and the second slide-resistant pile 42 and the reference direction is a first included angle A, the included angle between the connecting line between the first slide-resistant pile 41 and the third slide-resistant pile 43 and the reference direction is a second included angle B, and the impact object 8 acts on the blocking net 46 between the second slide-resistant pile 42 and the third slide-resistant pile 43. The position angle calculating method is used for calculating the size of the first included angle A when the anti-overturning moment of the bridge pier 2 protection structure is maximum.
The position angle calculating method comprises the following steps:
step one, calculating anti-overturning moment which can be provided by the protective bracket 4 according to the maximum pulling resistance which can be provided by each anti-skidding pile, wherein the anti-overturning moment is a function of a first included angle A and a second included angle B;
specifically, assuming that the maximum pulling resistance that each of the anti-skid piles can provide is F, when the first anti-skid pile 41 is tipped over, the moment arm of the anti-skid force of the first anti-skid pile 41 is 0, and the generated moment is 0.
The anti-capsizing moment is the sum of the moments of the second and third anti-slide piles 42, 43:
W＝FLsinA+FLsinB
wherein W is anti-overturning moment;
f is the maximum pulling resistance which each slide-resistant pile can provide;
l is the distance between two slide-resistant piles;
a is a first included angle;
b is a second included angle.
Step two, converting the anti-overturning moment into a function related to a first included angle according to equal pile spacing among the three anti-skidding piles;
because the pile spacing of the three anti-slide piles is equal, the projections of the first anti-slide pile 41, the second anti-slide pile 42 and the third anti-slide pile 43 in the horizontal plane form an equilateral triangle structure, and the sum of the first included angle and the second included angle is 120 degrees, so that the sum of the first included angle and the second included angle is B=120 degrees to A, and the value range of A is [0 degrees, 120 degrees:
W＝FLsinA+FLsin(120°-A)
step three, the anti-overturning moment takes the maximum value, and the corresponding first included angle is the first included angle when the protective bracket 4 is the most stable, namely the first included angle when the protective effect is the best;
specifically, since the pulling resistance force F and the pile center distance L are fixed values, only the maximum value of sinA+sin (120 ° -A) is required.
For a pair of
Deriving and obtaining->
In the interval 0, 60,
a value of greater than 0; interval (60 DEG, 120 DEG)]，/>
The value of (2) is less than 0; at the position of 60 degrees,
the value of (2) is equal to 0.
Then the first time period of the first time period,
the value of the first included angle A is increased in the range of [0, 60 DEG ], and the value of the first included angle A is increased in the range of (60 DEG, 120 DEG)]The first angle a is equal to 60 ° and takes a maximum value.
That is, when the first included angle a is 60 °, the anti-overturning moment is maximum, and the protective bracket 4 is most stable.
It will be appreciated that due to
Is increased in the range of [0, 60 ], is increased in the range of (60, 120 DEG)]In other words, when the value of the first included angle a is [0, 60 °), the anti-overturning moment of the protective bracket 4 increases progressively, at (60 °,120 °]When the anti-overturning moment of the protective bracket 4 is decreased, namely, the value of the first included angle A is close to 60 degrees, the protective bracket 4 is more stable. If there is a disadvantage in the construction site environment, then, the first angle a cannot be set to 60 ° just, and in combination with the construction site environment, it is preferable to have the value of the first angle a as close to 60 ° as possible.
The embodiment of the invention has the beneficial effects that:
1. after flood occurs, a part of the blocking net 46 facing the water flow direction blocks the impact object 8, the blocking net 46 generates a pulling force after being impacted by the impact object 8, the pulling force is transmitted to the bridge pier 5 through the blocking net 46, and the pulling force opposite to the water flow direction acts on the bridge pier 5, so that the flood impact force suffered by a part of bridge piers 2 is counteracted.
2. The three anti-slide piles are fixedly connected into a whole through the cross beam 44, so that the whole protective bracket 4 is more stable and overturning is avoided.
3. The elastic piece is arranged on the blocking net 46, so that the tensile force generated by the impact object 8 on the bridge can be transmitted to the bridge pier 2 after being damped, the tensile force applied to the bridge pier 46 by the blocking net 46 is slowly changed, and the impact effect is reduced.
4. The method for calculating the position angle of the bridge pier 2 protection structure can obtain the position angle of the protection support 4 when the protection support 4 is most stable, thereby providing more powerful protection for the bridge pier 2.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. A pier protection structure is characterized in that,
the device is arranged at the upstream of the bridge and comprises a protective bracket and a blocking net;
the protective bracket comprises a first anti-slide pile, a second anti-slide pile and a third anti-slide pile which are parallel to each other and are arranged at intervals in a triangular shape, the distance between every two anti-slide piles is equal, and a roller is rotatably sleeved outside the upper side of each anti-slide pile;
the protective bracket further comprises three cross beams, the three cross beams correspondingly connect the three anti-slide piles in pairs, and the cross beams and the roller are arranged at intervals along the up-down direction of the anti-slide piles; the two ends of the blocking net are connected with the bridge pier, and the blocking net is sleeved on the protection bracket and is contacted with the rollers of the three anti-slide piles;
the first anti-slide pile is arranged close to the bridge pier, the second anti-slide pile and the third anti-slide pile are arranged far away from the bridge pier, a straight line passing through the first anti-slide pile in a horizontal plane and perpendicular to the water flow direction is taken as a reference direction, an included angle between a connecting line between the first anti-slide pile and the second anti-slide pile and the reference direction is a first included angle, an included angle between a connecting line between the first anti-slide pile and the third anti-slide pile and the reference direction is a second included angle, an impact object acts on a blocking net between the second anti-slide pile and the third anti-slide pile, and the position angle calculating method is used for calculating the size of the first included angle when a protective bracket of the bridge pier protective structure is the most stable;
the position angle calculation method comprises the following steps:
according to the maximum pulling resistance provided by each anti-slide pile, calculating anti-overturning moment provided by the protective bracket, wherein the anti-overturning moment is a function of a first included angle and a second included angle;
converting the anti-overturning moment into a function related to a first included angle according to equal pile spacing among the three anti-skidding piles;
the anti-overturning moment takes the maximum value, and the corresponding first included angle is the first included angle when the protective bracket is most stable;
the anti-overturning moment is as follows:
W＝FLsinA+FLsinB
wherein W is anti-overturning moment;
f is the maximum pulling resistance which each slide-resistant pile can provide;
l is the distance between two slide-resistant piles;
a is a first included angle;
and B is a second included angle, and B=120-A.
2. The pier protecting structure according to claim 1, wherein,
the first anti-slide pile is arranged close to the pier, and the second anti-slide pile and the third anti-slide pile are arranged far away from the pier.
3. The pier protecting structure according to claim 2, wherein,
the connecting line direction between the second slide-resistant pile and the third slide-resistant pile is perpendicular to the water flow direction.
4. The pier protecting structure according to claim 1, wherein,
the bridge pier is characterized in that a plurality of pull rings are arranged at two ends of the blocking net, a plurality of pull hooks are arranged on the bridge pier, and the pull rings are correspondingly connected with the pull hooks.
5. The pier protecting structure according to claim 1, wherein,
the blocking net is a steel wire net.
6. The pier protecting structure according to claim 1, wherein,
the blocking net comprises an elastic piece.
7. The pier protecting structure according to claim 6, wherein,
the elastic piece comprises a plurality of springs arranged at the edge of the blocking net, and the springs are used for being connected with the bridge pier.
8. The pier protecting structure according to claim 1, wherein,
when a=60°, W reaches a maximum value, and the protective stent is most stable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2020/118416 WO2022073146A1 (en) | 2020-10-10 | 2020-10-10 | Bridge pier protection structure and position and angle calculation method therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113811655A CN113811655A (en) | 2021-12-17 |
| CN113811655B true CN113811655B (en) | 2023-05-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202080017938.8A Active CN113811655B (en) | 2020-10-10 | 2020-10-10 | Pier protection structure and position angle calculation method thereof |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN113811655B (en) |
| WO (1) | WO2022073146A1 (en) |
| ZA (1) | ZA202205335B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116290021A (en) * | 2023-03-27 | 2023-06-23 | 中建安装集团南方建设有限公司 | Novel side slope network type anti-slip row pile |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201310069Y (en) * | 2008-09-25 | 2009-09-16 | 黄正荣 | Pile-column anti-collision device for bridge |
| JP6671612B2 (en) * | 2014-07-04 | 2020-03-25 | 国立大学法人 名古屋工業大学 | Viaduct collapse prevention structure |
| CN204000764U (en) * | 2014-08-09 | 2014-12-10 | 仙居长广建设工程有限公司 | Anticollision device of pier |
| CN206157667U (en) * | 2016-11-11 | 2017-05-10 | 长安大学 | Mountain area skew bridge pier scour prevention buffer stop |
| CN107974932B (en) * | 2017-12-06 | 2019-08-13 | 四川建筑职业技术学院 | One kind is paddled bridge pier protection guard |
| CN109577175A (en) * | 2019-01-30 | 2019-04-05 | 重庆文理学院 | A kind of Bridge Pier system |
-
2020
- 2020-10-10 WO PCT/CN2020/118416 patent/WO2022073146A1/en active Application Filing
- 2020-10-10 CN CN202080017938.8A patent/CN113811655B/en active Active
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| Publication number | Publication date |
|---|---|
| CN113811655A (en) | 2021-12-17 |
| ZA202205335B (en) | 2022-08-31 |
| WO2022073146A1 (en) | 2022-04-14 |
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