CN112982156A - Energy consumption guardrail for bridge - Google Patents

Energy consumption guardrail for bridge Download PDF

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Publication number
CN112982156A
CN112982156A CN202110195353.1A CN202110195353A CN112982156A CN 112982156 A CN112982156 A CN 112982156A CN 202110195353 A CN202110195353 A CN 202110195353A CN 112982156 A CN112982156 A CN 112982156A
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CN
China
Prior art keywords
bridge
fixed
guardrail
energy consumption
piston
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Granted
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CN202110195353.1A
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Chinese (zh)
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CN112982156B (en
Inventor
陈娟
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Hangzhou Dajiangdong City Facilities And Maintenance Co ltd
Hangzhou Qiantang District Comprehensive Administrative Law Enforcement Bureau
Zhongcheng Jiankan Zhejiang Testing Technology Co ltd
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Individual
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Priority to CN202110195353.1A priority Critical patent/CN112982156B/en
Publication of CN112982156A publication Critical patent/CN112982156A/en
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Publication of CN112982156B publication Critical patent/CN112982156B/en
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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00Structural or constructional details of bridges
    • E01D19/10Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/103Parapets, railings ; Guard barriers or road-bridges
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145Means for vehicle stopping using impact energy absorbers
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01FADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F15/00Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact
    • E01F15/14Safety arrangements for slowing, redirecting or stopping errant vehicles, e.g. guard posts or bollards; Arrangements for reducing damage to roadside structures due to vehicular impact specially adapted for local protection, e.g. for bridge piers, for traffic islands
    • E01F15/145Means for vehicle stopping using impact energy absorbers
    • E01F15/148Means for vehicle stopping using impact energy absorbers mobile arrangements

Abstract

The invention relates to the field of bridge guardrails, in particular to an energy-consuming guardrail for a bridge. Including pier, bridge floor and bridge railing, bridge railing sets up the both sides at the bridge floor, equidistant energy dissipation unit that is equipped with in bridge railing's the outside, energy dissipation unit comprises mounting bracket, fixed block, slider, a plurality of piston cylinder, a plurality of piston rod, a plurality of damping spring, a plurality of exhaust duct, a plurality of connecting block and a plurality of group's connecting rope of organizing, mounting bracket and bridge floor fixed connection, the fixed block is vertical to be fixed in on the mounting bracket, singly organize the piston end of piston rod is located singly organize in the piston cylinder, singly organize the other end and the slider fixed connection of piston rod, the slider is located the outside of bridge railing, damping spring cup joints on the piston rod, and damping spring is located between piston cylinder and the slider. This technical scheme is used for solving among the prior art bridge railing and is poor to the striking effect of vehicle, can not be fine prevent that the vehicle from rushing out the outer problem of bridge railing.

Description

Energy consumption guardrail for bridge
Technical Field
The invention relates to the field of bridge guardrails, in particular to an energy-consuming guardrail for a bridge.
Background
Most bridges are ubiquitous in the air for connecting the media of two highland, the time that people are detouring has been avoided, along with the extensive popularization of bridge, bridge safety technique is also developed in succession, along with the gradual improvement of people's safety consciousness, the safety protection technique of municipal bridge is also improving gradually, and anticollision barrier also is an important part of bridge safety facility, through the continuous optimization to the guardrail of bridge both sides, make the guardrail promote gradually on anticollision resistance, when the incident takes place, anticollision barrier's existence, make the influence that the traffic accident caused reduce gradually.
However, the safety protection function which is often played when a traffic accident occurs is very small, when the collision occurs, the vehicle is very destructive due to too large rigidity of the guard rail, or the vehicle directly rushes out of the bridge body due to too small rigidity, so that the accident can bring about destructive results, and the optimization of the anti-collision guard rail is imperative.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide an energy-consuming guardrail for a bridge, which is used for solving the problems that the bridge guardrail in the prior art has poor impact effect on vehicles and cannot well prevent the vehicles from rushing out of the bridge guardrail.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an energy-consuming guardrail for a bridge comprises piers, a bridge floor and bridge guardrails, wherein the bridge guardrails are arranged on two sides of the bridge floor, energy-consuming units are arranged on the outer side of the bridge guardrails at equal intervals and consist of a mounting frame, a fixed block, a sliding block, a plurality of groups of piston cylinders, a plurality of groups of piston rods, a plurality of groups of damping springs, a plurality of groups of exhaust pipelines, a plurality of groups of connecting blocks and a plurality of groups of connecting ropes, the mounting frame is fixedly connected with the bridge floor, the fixed block is vertically fixed on the mounting frame, the piston end of one group of piston rods is positioned in one group of piston cylinders, the other end of one group of piston rods is fixedly connected with the sliding block, the sliding block is positioned on the outer side of a bridge railing, the damping springs are sleeved on the piston rods, the damping springs are, singly organize exhaust duct is fixed in on the fixed block, and with piston cylinder and the link with the fixed plate with external intercommunication, a plurality of groups exhaust duct's one end intercommunication each other, and be equipped with the relief valve at its intercommunication position, a plurality of groups the connecting block is fixed in the upper end of bridge railing, singly organize the one end of stay cord is fixed in the upper end of mounting bracket, and the other end passes the upper end fixed connection of connecting block and slider.
The working principle of the technical scheme is as follows: when the car bumps to the bridge guardrail out of control on the bridge, the locomotive of car at first contacts with the guardrail of bridge, make the bridge guardrail take place deformation, bridge guardrail will carry out partly consumption to the impact force of car simultaneously, when the deformation volume of bridge guardrail exceeds certain scope, the impact force of car will act on the slider, and promote the slider and remove to the outside of bridge, in the removal process of slider, damping spring will compress, the impact force to the car carries out partly internal energy consumption, the removal of piston rod in the piston cylinder simultaneously, the internal air compression when will, convert the impact force of car into compressed air's internal energy and further consume the impact force, make the impact force of car reduce gradually, reduce the impact injury that it received, avoid the car to rush out the bridge simultaneously, cause serious injury and loss.
Further inject, the one end and the bridge floor of mounting bracket are articulated, be equipped with the fixed pulley in the connecting block, the other end of connecting the rope passes fixed pulley and slider fixed connection, and its beneficial part lies in, and when the impact action of car was acted on the slider, the displacement volume of slider will drive the mounting bracket through connecting the rope and have a trend to the inside rotation of bridge, makes the mounting bracket can provide the car an opposite and impact force direction's effort, can carry out the part to the impulsive force and offset.
Further inject, the inside of mounting bracket is equipped with the extension board, extension board sliding connection is in the inside of mounting bracket, the one end of connecting the rope is fixed in the upper end of extension board, and the other end passes the fixed pulley and is fixed in the upper end of slider, and its beneficial part lies in, and the displacement volume of slider will drive the extension board and upwards slide, and the extension board that slides and go out will contact with the car locomotive, in the increase lifting surface area, can also block the displacement volume of car, further reduces the risk that the car rushed out the bridge railing.
Further inject, the bridge railing comprises a plurality of horizontal steel pipes and a plurality of vertical steel pipes, the one end and the bridge floor fixed connection of vertical steel pipe, the other end and horizontal steel pipe fixed connection, it is a plurality of horizontal steel pipe is located same height and head and the tail intercommunication, and is a plurality of be equipped with the steel cable in the horizontal steel pipe, the both ends of bridge floor are equipped with the spud pile with bottom surface fixed connection, on the spud pile at bridge floor both ends is fixed in respectively at the both ends of steel cable, its beneficial part lies in, and the impact force of car very easily causes the damage of local vertical steel pipe, makes it break away from with the bridge floor, and the inside steel cable that sets up of bridge railing has fine deformability and ductility, enables whole bridge railing and carries out the atress, reduces the problem of the protection effect of vehicle.
Further limit, the one end of connecting the rope is fixed in the upper end of extension board, the steel cable that the other end of connecting the rope was walked around in the connecting piece and horizontal steel pipe is fixed in the upper end of slider, and its beneficial effect lies in, the steel cable is not fragile and is broken, and the connecting rope is walked around the steel cable and can be increased the firm performance of power consumption unit.
Further, the lower end of the sliding block is in sliding connection with the bridge floor, and the sliding block can only slide relatively along the bridge floor.
Further inject, the outside of relief valve is equipped with fixed connection's communicating pipe with it, the one end of communicating pipe is fixed in the exhaust end of relief valve, the other end of communicating pipe is equipped with pressure alarm switch, pressure alarm switch can be through the increase that detects atmospheric pressure and the action of reporting to the police, and its beneficial part lies in, and pressure alarm closes soon and detects the pressure increase, and surface bridge floor guardrail is damaged promptly, has taken place the traffic accident promptly, and pressure alarm switch produces the alarm action and can make the traffic police fix a position accident position the very first time, can in time launch rescue work.
And further limiting, the distance between every two adjacent energy consumption units is less than the width of the head of a common car by 20-30 cm, and the energy consumption control system has the advantage of ensuring that the collision positions of the vehicles are all within the coverage range of the energy consumption units.
Further inject, be equipped with the rubber gasbag on the side of slider towards the bridge railing, be equipped with the air inlet on the gasbag, the other end of communicating pipe and the air inlet intercommunication of gasbag, its beneficial part lies in that, the compressed air that the removal of piston rod produced aerifys the gasbag, and the inflation of gasbag provides an effort for the locomotive, further offsets the impact force to the car.
The invention has the following technical effects:
(1) the energy consumption unit in the technical scheme can perform multilevel consumption on the impact generated by the vehicle on the bridge guardrail, and can protect the vehicle and a driver, so that the vehicle is not easy to rush out of the bridge guardrail. (2) Set up the steel cable in the bridge railing and enable the bridge railing when receiving the vehicle striking, make whole bridge railing participate in the atress, can avoid causing the condition that the vehicle rushed out the bridge railing because of the local damage of bridge railing is two.
Drawings
Fig. 1 is a schematic front perspective view of an embodiment of the present invention.
Fig. 2 is a schematic top view of an embodiment of the present invention.
Fig. 3 is a schematic front view of an embodiment of the present invention.
Fig. 4 is a schematic side view of an embodiment of the present invention.
FIG. 5 is a partial schematic view of the embodiment of the present invention at A in FIG. 4.
Reference numerals
The bridge comprises a pier 1, a bridge deck 2, a bridge guardrail 3, steel ropes 4, a mounting frame 5, a sliding block 51, a fixing block 52, a damping spring 53, a connecting block 54, a connecting rope 55, a piston cylinder 56, a piston rod 57, an extension plate 58 and an exhaust pipeline 59.
Detailed Description
The following is further detailed by way of specific embodiments:
an energy consumption guardrail for a bridge is arranged on the side surface of the bridge and mainly comprises piers 1, a bridge floor 2 and bridge guardrails 3, in the embodiment, the bridge guardrails are composed of a plurality of transverse steel pipes and a plurality of vertical steel pipes, one ends of the vertical steel pipes are fixedly connected with the bridge floor 2, the other ends of the vertical steel pipes are fixedly connected with the transverse steel pipes, the transverse steel pipes are positioned at the same height and are communicated end to end, steel ropes 4 are arranged in the transverse steel pipes, fixing piles fixedly connected with the bottom surface are arranged at two ends of the bridge floor 2, and two ends of each steel rope 4 are respectively fixed on the fixing piles at two ends of the bridge floor 2. the energy consumption guardrail is characterized in that the energy consumption guardrail is beneficial to causing the damage of local vertical steel pipes and separating the local vertical steel pipes from the bridge floor 2 due to the impact force of an automobile, the steel ropes 4 arranged in the bridge guardrails have good deformability and ductility, the whole bridge guardrails 3, the energy consumption unit has the functions of reducing the impact of the vehicle on the bridge guardrail 3, buffering the impact force generated by the vehicle and ensuring that the vehicle cannot rush out of the bridge to cause larger loss.
The energy consumption units are arranged on the outer side of the bridge guardrail 3 at intervals, and in the embodiment, the intervals between the adjacent energy consumption units are preferably smaller than the width of the head of a common car by 20-30 cm, so that the collision positions of the cars are ensured to be within the coverage range of the energy consumption units. The energy consumption unit specifically comprises a mounting frame 5, a fixing block 52, a sliding block 51, a plurality of sets of piston cylinders 56, a plurality of sets of piston rods 57, a plurality of sets of damping springs 53, a plurality of sets of exhaust pipelines 59, a plurality of sets of connecting blocks 54 and a plurality of sets of connecting ropes 55, in the embodiment, the number of the piston cylinders 56 is 3, the number of the piston rods 57 is matched with that of the piston cylinders 56, the number of the damping springs 53 is matched with that of the piston cylinders 56, the number of the exhaust pipelines 59 is matched with that of the piston cylinders 56, the number of the connecting blocks 54 is two, the number of the connecting ropes 55 is matched with that of the connecting blocks 54, the energy consumption unit is specifically connected in a manner that the mounting frame 5 is fixedly connected with the bridge deck 2, the fixing block 52 is vertically fixed on the mounting frame 5, the piston end of a single set of piston rods 57 is, the sliding block 51 is positioned at the outer side of the bridge railing, the damping spring 53 is sleeved on the piston rod 57, the damping spring 53 is positioned between the piston cylinder 56 and the sliding block 51, a plurality of groups of piston cylinders 56 are uniformly fixed on the vertical direction of the fixing block 52, a single group of exhaust pipelines 59 are fixed on the fixing block 52 and connect the piston cylinder 56 and the connecting end of the fixing plate with the outside, one ends of a plurality of groups of exhaust pipelines 59 are mutually communicated, a pressure relief valve is arranged at the communication part, preferably, a communication pipe fixedly connected with the pressure relief valve is arranged at the outer side of the pressure relief valve, one end of the communication pipe is fixed at the exhaust end of the pressure relief valve, the other end of the communication pipe is provided with a pressure alarm switch, the pressure alarm switch can alarm by detecting the increase of air pressure, and the bridge railing on the surface 2 has the advantages that the pressure alarm switch, the pressure alarm switch generates an alarm action, so that a traffic police can position the accident position at the first time, a plurality of groups of connecting blocks 54 can be unfolded in time for rescue work and fixed at the upper end of the bridge railing, one end of a single group of pull ropes is fixed at the upper end of the mounting frame 5, and the other end of the single group of pull ropes penetrates through the connecting blocks 54 and the upper end of the sliding block 51 to be fixedly connected.
Preferably, one end of the mounting bracket 5 is hinged to the bridge deck 2, the fixed pulley is arranged in the connecting block 54, and the other end of the connecting rope 55 passes through the fixed pulley and is fixedly connected with the sliding block 51, which is beneficial in that when the impact of the automobile acts on the sliding block 51, the displacement of the sliding block 51 will drive the mounting bracket 5 to have a tendency of rotating towards the inside of the bridge through the connecting rope 55, so that the mounting bracket 5 can provide the automobile with an acting force in the direction opposite to the impact force, and the impact force can be partially offset. Preferably, the inside of mounting bracket 5 is equipped with extension board 58, extension board 58 sliding connection is in the inside of mounting bracket 5, the one end of connecting rope 55 is fixed in the upper end of extension board 58, the other end passes the fixed pulley and is fixed in the upper end of slider 51, its beneficial effect lies in, the displacement volume of slider 51 will drive extension board 58 upwards to slide, the extension board 58 that slides and go out will contact with the car locomotive, when increasing the lifting surface area, can also block the displacement volume of car, further reduce the risk that the car rushes out bridge railing 3. One end of the connecting rope 55 is fixed on the upper end of the extension plate 58, and the other end of the connecting rope 55 is fixed on the upper end of the sliding block 51 by passing around the fixed pulley in the connecting block 54 and the steel rope 4 in the transverse steel pipe, which is beneficial in that the steel rope 4 is not easy to damage and break, and the firmness of the energy consumption unit can be increased by passing the connecting rope 55 around the steel rope 4.
Preferably, the side of the sliding block 51 facing the bridge railing is provided with a rubber air bag, the air bag is provided with an air inlet, and the other end of the communicating pipe is communicated with the air inlet of the air bag.
It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims (9)

1. An energy-consuming guardrail for a bridge comprises piers, a bridge floor and bridge guardrails, wherein the bridge guardrails are arranged on two sides of the bridge floor, and is characterized in that energy-consuming units are arranged on the outer side of the bridge guardrails at equal intervals and consist of a mounting frame, a fixing block, a sliding block, a plurality of groups of piston cylinders, a plurality of groups of piston rods, a plurality of groups of damping springs, a plurality of groups of exhaust pipelines, a plurality of groups of connecting blocks and a plurality of groups of connecting ropes, the mounting frame is fixedly connected with the bridge floor, the fixing block is vertically fixed on the mounting frame, the piston end of a single group of piston rod is positioned in a single group of piston cylinder, the other end of the single group of piston rod is fixedly connected with the sliding block, the sliding block is positioned on the outer side of the bridge railing, the damping springs are sleeved on the piston rods, singly organize exhaust duct is fixed in on the fixed block, and with piston cylinder and the link with the fixed plate with external intercommunication, a plurality of groups exhaust duct's one end intercommunication each other, and be equipped with the relief valve at its intercommunication position, a plurality of groups the connecting block is fixed in the upper end of bridge railing, singly organize the one end of stay cord is fixed in the upper end of mounting bracket, and the other end passes the upper end fixed connection of connecting block and slider.
2. The energy consumption guardrail for the bridge of claim 1, wherein: one end of the mounting frame is hinged to the bridge floor, a fixed pulley is arranged in the connecting block, and the other end of the connecting rope penetrates through the fixed pulley and is fixedly connected with the sliding block.
3. The energy consumption guardrail for the bridge of claim 2, wherein: the inside of mounting bracket is equipped with the extension board, extension board sliding connection is in the inside of mounting bracket, the one end of connecting the rope is fixed in the upper end of extension board, and the other end passes the upper end that the fixed pulley is fixed in the slider.
4. The energy consumption guardrail for the bridge of claim 1, wherein: the bridge railing comprises a plurality of horizontal steel pipes and a plurality of vertical steel pipes, the one end and the bridge floor fixed connection of vertical steel pipe, the other end and horizontal steel pipe fixed connection, it is a plurality of horizontal steel pipe is located same height and head and the tail intercommunication, and is a plurality of be equipped with the steel cable in the horizontal steel pipe, the both ends of bridge floor are equipped with the spud pile with bottom surface fixed connection, the both ends of steel cable are fixed in respectively on the spud pile at bridge floor both ends.
5. The energy consumption guardrail for the bridge according to claim 3 or 4, wherein: the one end of connecting the rope is fixed in the upper end of extension board, the other end of connecting the rope is walked around the fixed pulley in the connecting block and the steel cable in the horizontal steel pipe is fixed in the upper end of slider.
6. The energy consumption guardrail for the bridge of claim 5, wherein: the lower end of the sliding block is connected with the bridge floor in a sliding mode, and the sliding block can only slide along the bridge floor relatively.
7. The energy consumption guardrail for the bridge of claim 1, wherein: the outer side of the pressure release valve is provided with a communicating pipe fixedly connected with the pressure release valve, one end of the communicating pipe is fixed at the exhaust end of the pressure release valve, the other end of the communicating pipe is provided with a pressure alarm switch, and the pressure alarm switch can alarm by detecting the increase of air pressure.
8. The energy consumption guardrail for the bridge of claim 1, wherein: the distance between the adjacent energy consumption units is less than the width of the head of a common car by 20-30 cm.
9. The energy consumption guardrail for the bridge according to claim 1 or 7, wherein: the side of the sliding block facing the bridge railing is provided with a rubber air bag, the air bag is provided with an air inlet, and the other end of the communicating pipe is communicated with the air inlet of the air bag.
CN202110195353.1A 2021-02-20 2021-02-20 Energy consumption guardrail for bridge Active CN112982156B (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463546A (en) * 2021-07-09 2021-10-01 刘娜 Highway protector that security is good
CN114737474A (en) * 2022-04-20 2022-07-12 叶洪波 Large-span assembly type steel bridge structure

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JP2002309519A (en) * 2001-04-18 2002-10-23 Kanamori Tobei Shoji Kk Rope member gripping device for impact absorbing fence
DE20218419U1 (en) * 2002-11-28 2003-02-06 Simon Angela Security device for motor car race tracks comprises flat catchment component extending to ground of track, with holding construction on which rear side of catchment component extends with corresponding catchment area
DE20317174U1 (en) * 2003-11-04 2004-04-08 Sps Schutzplanken Gmbh Collision buffer and damping system for installation at roadside has row of hollow cylindrical damping elements and cables connected to end fittings
KR20050095293A (en) * 2004-03-26 2005-09-29 (주)양지엔지니어링 Central divider
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113463546A (en) * 2021-07-09 2021-10-01 刘娜 Highway protector that security is good
CN114737474A (en) * 2022-04-20 2022-07-12 叶洪波 Large-span assembly type steel bridge structure

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