CN105758609B - Bridge pier collision impact experimental rig and its test method based on shipping anti-collision device - Google Patents

Bridge pier collision impact experimental rig and its test method based on shipping anti-collision device Download PDF

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Publication number
CN105758609B
CN105758609B CN201610323581.1A CN201610323581A CN105758609B CN 105758609 B CN105758609 B CN 105758609B CN 201610323581 A CN201610323581 A CN 201610323581A CN 105758609 B CN105758609 B CN 105758609B
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collision
ship
anticollision
prevention
weight
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CN105758609A (en
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万水
杨湛
田俊良
李遂生
郭英杰
刘文娟
常灿华
张晓军
陆文超
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Southeast University
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Southeast University
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M7/00Vibration-testing of structures; Shock-testing of structures
    • G01M7/08Shock-testing

Abstract

The invention discloses a kind of bridge pier collision impact experimental rig based on shipping anti-collision device, including pond, concrete pier model, ship model, guide rail and flat car, water is provided in the pond, the concrete pier model is fixed in pond vertically, suspension is provided with anticollision device, collision-prevention device on the concrete pier model, waterborne in the pond is provided with ship model, and the ship model and anticollision device, collision-prevention device are in same level;The ship model is connected by suspension cord and flat car suspension, and the flat car is arranged on guide rail, and the guide rail is erected at the top of ship model, adjusts the draft of suspension cord control ship model;The horizontal direction of the ship model and flat car is provided with weight, the weight tenesmus by fixed pulley traction, and the anticollision device, collision-prevention device for drawing flat car and ship model towards concrete pier model direction collides.The present invention considers the influence of water, and true simulation is anhydrous or the collision process of shipping anti-collision device bridge pier collision system under water environment.

Description

Bridge pier collision impact experimental rig and its test method based on shipping anti-collision device
Technical field
The present invention relates to the impact test apparatus and its test method of a kind of ship-anticollision device, collision-prevention device-bridge pier collision system, Collision process for ship and anticollision device, collision-prevention device under real simulation water environment.
Background technique
With the fast development of China Transportation Industry, the bridge across rivers is also more and more, and incident is ship Oceangoing ship hits the major accident of bridge, brings great security risk and property loss.In order to obtain corresponding countermeasure, design experiment The knockout process of simulation ship becomes most important.The collision of ship and anticollision device, collision-prevention device or bridge pier occurs in water environment, and There is no consider influence of the water to collision for a large amount of collision test method before.In order to improve the accuracy of test, in the present invention Experimental rig be arranged in anhydrous or water environment, can fully consider the influence of water in collision process, therefore can be true Ship-anticollision device, collision-prevention device --- the collision process of bridge pier collision system under simulation is anhydrous or water environment.
Summary of the invention
Goal of the invention: in order to overcome the deficiencies in the prior art, the present invention provides a kind of based on shipping anti-collision device Bridge pier collision impact experimental rig and its test method, it is contemplated that the influence of water, true simulation is anhydrous or water environment Under shipping anti-collision device bridge pier collision system collision process.
Technical solution: to achieve the above object, technical scheme is as follows:
Bridge pier collision impact experimental rig based on shipping anti-collision device, including pond, concrete pier model, ship mould Type, guide rail and flat car are provided with water in the pond, and the concrete pier model is fixed in pond vertically, described mixed It is hung on solidifying soil bridge pier model by suspension cord and is provided with anticollision device, collision-prevention device, waterborne in the pond is provided with ship model, The ship model and anticollision device, collision-prevention device are in same level;The ship model is connected by suspension cord and flat car suspension It connects, the flat car is arranged on guide rail, and the guide rail is erected at the top of ship model;The ship model and flat car Horizontal direction is provided with weight by fixed pulley traction, and the weight tenesmus draws flat car and ship model towards concrete The anticollision device, collision-prevention device in bridge pier model direction collides.
Further, distance of the weight apart from landing point is less than collision of the front end of ship model apart from anticollision device, collision-prevention device Identity distance from.
Further, there are two the photoelectric sensors of forward and backward setting for setting in front of the anticollision device, collision-prevention device.
Further, it can be realized by the length of adjusting suspension anticollision device, collision-prevention device and the suspension cord of ship model The collision operating condition of different drafts.
Further, one end of the guide rail and concrete pier model top are hinged, the other end and branch of the guide rail Dagger connection;The guide rail is rotated around concrete pier model, simulates the reality of the multi-angle collision of ship model and anticollision device, collision-prevention device Test operating condition.
The test method of bridge pier collision impact experimental rig based on shipping anti-collision device, test process are divided into following rank Section:
In the traction stage, by weight-drop, draws ship model and advance, a part of gravitional force of weight is converted into The kinetic energy of ship model, flat car and weight provides the initial velocity of collision for ship model;
When the art skating stage starts, weight is fallen to the ground, ship model art skating;
Moment before encounter stage starts, ship model front end are measured ship model and are prevented by photoelectric sensor The instantaneous velocity of ship model before collision device collides, occurs the collision of ship model and anticollision device, collision-prevention device later.
In the preparation stage, the weight of certain mass is chosen, speed when colliding according to required ship model adjusts weight The release altitude of object calculates the distance between ship model and anticollision device, collision-prevention device, adjusts between ship model and anticollision device, collision-prevention device Distance;Ship model and anticollision can be realized by making support column and guide rail around the multiple angles of concrete pier model rotation The operating condition of test of the multi-angle collision of device;The length of adjustable suspension cord adjusts the draft of ship model;It is trying It tests in the stage, discharges weight, by traction stage, art skating stage and encounter stage, ship model and anticollision device, collision-prevention device are collided It completes, the instantaneous velocity before reading the ship model collision that photoelectric sensor measures, the i.e. test of completion one-shot.
Water in venting pond, the then impact test that the experimental rig can be used under water-less environment.
The utility model has the advantages that
1, by changing release altitude, the quality of weight and the initial position of ship model of weight, ship can be controlled Oceangoing ship model hits momentum when anticollision device, collision-prevention device.
2, by making support column and guide rail around concrete pier model rotation certain angle, may be implemented ship model with The operating condition of test of the different angle collision of anticollision device, collision-prevention device.
3, test process can occur to carry out in anhydrous or water environment, can true simulation shipping anti-collision device bridge pier The collision process of collision system.
4, flat car and ship model pass through drag rope and are connected on weight, therefore can guarantee flat car and ship model Move synchronously.
5, there are the art skating stages of ship model before the collision, it is ensured that ship model is not pulled masterpiece when collision With.
6, anticollision device, collision-prevention device and ship model are hung by suspension cord, can be realized not by adjusting the length of suspension cord With the collision operating condition of draft.
7, without loss of generality, if water in venting pond, the collision system which can be used under water-less environment Model test.
Detailed description of the invention
Accompanying drawing 1 is the structural representation of the present invention.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
Such as attached drawing 1, the bridge pier collision impact experimental rig based on shipping anti-collision device, including pond 11, concrete pier Model 7, ship model 10, guide rail 1 and flat car 6, water is provided in the pond 11, and the concrete pier model 7 is vertical It is fixed in pond 11, anticollision device, collision-prevention device 9, the pond is provided with by the suspension of suspension cord 4 on the concrete pier model 7 Waterborne in 11 is provided with ship model 10, and the ship model 10 is in same level with anticollision device, collision-prevention device 9;The ship mould Type 10 is connected by suspension cord 4 and the suspension of flat car 10, and the flat car 10 is arranged on guide rail 1, and the guide rail 1 is erected at The top of ship model 10, the length for adjusting suspension cord 4 can realize the collision operating condition of different drafts;The ship model 10 and the horizontal direction of flat car 6 weight 5 is provided with by the traction of fixed pulley 2, the weight 5 drops, and draws flat car 6 and ship The anticollision device, collision-prevention device 9 in oceangoing ship model 10 towards 7 direction of concrete pier model collides.It should be noted that the weight 5 is apart from born The distance of point is less than impingement area distance of the front end of ship model 10 apart from anticollision device, collision-prevention device 9.Make ship model 10 and anticollision device, collision-prevention device 9 Tractive force effect is no longer influenced by when collision.
Photoelectric sensor 13 there are two forward and backward setting is set in front of the anticollision device, collision-prevention device 9, for detecting ship model Instantaneous velocity before 10 collisions.
Multi-angle impact test is further simulated, the package of anticollision device, collision-prevention device 9, which rounds, to be arranged in concrete pier mould In type 7.One end of the guide rail 1 and 7 top of concrete pier model are hinged, and the other end and support column 8 of the guide rail 1 connect It connects;The guide rail 1 is rotated around concrete pier model 7, the experiment that the multi-angle of simulation ship model 10 and anticollision device, collision-prevention device 7 is collided Operating condition.
The test method of bridge pier collision impact experimental rig based on shipping anti-collision device, test process are divided into following rank Section:
It in the traction stage, is fallen by weight 5, traction ship model 10 advances, and a part of gravitional force of weight 5 turns The kinetic energy of ship model 10, flat car 6 and weight 5 is turned to, provides the initial velocity of collision, a part of gravity for ship model 10 Potential energy is then rubbed with traction by water resistance acting and fixed pulley 2 and is dissipated;
When the art skating stage starts, weight 5 is fallen to the ground, 10 art skating of ship model;Due to art skating When the meaning in stage is to make ship model 10 and anticollision device, collision-prevention device 9 to collide, i.e. encounter stage is no longer influenced by tractive force effect, is The loss of ship model 10 kinetic energy is reduced, therefore the move distance in art skating stage should be short as far as possible;
Ship model is measured by photoelectric sensor 13 in moment before encounter stage starts, 10 front end of ship model 10 collide the instantaneous velocity of preceding ship model 10 with anticollision device, collision-prevention device 9, and the collision of ship model 10 and anticollision device, collision-prevention device 9 occurs later.
In the specific test preparation stage, the weight 5 of certain mass is chosen, when being collided according to required ship model 10 Speed adjusts the release altitude of weight 5, calculates the distance between ship model 10 and anticollision device, collision-prevention device 9, adjusts ship model 10 The distance between anticollision device, collision-prevention device 9;It can be by making support column 8 and guide rail 1 rotate multiple angles around concrete pier model 7 Degree realizes the operating condition of test that the multi-angle of ship model 10 and anticollision device, collision-prevention device 9 is collided;The length of adjustable suspension cord 4 is adjusted Save the draft of ship model 10 and anticollision device, collision-prevention device 9;In experimental stage, weight 5 is discharged, by drawing stage, free skating Row order section and encounter stage, ship model 10 and the collision of anticollision device, collision-prevention device 9 are completed, and the ship model that photoelectric sensor 13 measures is read Instantaneous velocity before 10 collisions, the i.e. test of completion one-shot.
Without loss of generality, the water 12 in venting pond 11, the then impact test that the experimental rig can be used under water-less environment.
The above is only a preferred embodiment of the present invention, it should be pointed out that: for the ordinary skill people of the art For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered It is considered as protection scope of the present invention.

Claims (5)

1. the bridge pier collision impact experimental rig based on shipping anti-collision device, it is characterised in that: including pond (11), concrete bridge Pier model (7), ship model (10), guide rail (1) and flat car (6), the pond (11) is interior to be provided with water, the concrete bridge Pier model (7) is fixed on vertically in pond (11), passes through suspension cord (4) suspension setting on the concrete pier model (7) Have anticollision device, collision-prevention device (9), waterborne in the pond (11) is provided with ship model (10), and the ship model (10) and anticollision fill It sets (9) and is in same level;The ship model (10) is connected by suspension cord (4) and flat car (6) suspension, described flat Wooden handcart (6) is arranged on guide rail (1), and the guide rail (1) is erected at the top of ship model (10);The ship model (10) and The horizontal direction of flat car (6) is provided with weight (5) by fixed pulley (2) traction, and flat car is drawn in weight (5) tenesmus (6) it is collided with the anticollision device, collision-prevention device (9) in ship model (10) towards concrete pier model (7) direction;
Distance of the weight (5) apart from landing point is less than impingement area of the front end of ship model (10) apart from anticollision device, collision-prevention device (9) Distance;
Realize that difference is eaten by the length of adjusting suspension anticollision device, collision-prevention device (9) and the suspension cord (4) of ship model (10) The collision operating condition of water depth;
One end of the guide rail (1) and concrete pier model (7) top are hinged, the other end and support column of the guide rail (1) (8) it connects;The guide rail (1) rotates around concrete pier model (7), and simulation ship model (10) is more with anticollision device, collision-prevention device (9) The experiment condition of angle collisions.
2. the bridge pier collision impact experimental rig based on shipping anti-collision device according to claim 1, it is characterised in that: described There are two the photoelectric sensors (13) of forward and backward setting for setting in front of anticollision device, collision-prevention device (9).
3. the test method of the bridge pier collision impact experimental rig according to claim 1 based on shipping anti-collision device, Be characterized in that: test process was divided into the next stage:
It in the traction stage, is fallen by weight (5), traction ship model (10) is advanced, a part of gravitional force of weight (5) It is converted into the kinetic energy of ship model (10), flat car (6) and weight (5), provides the initial velocity of collision for ship model (10);
When the art skating stage starts, weight (5) is fallen to the ground, ship model (10) art skating;
Ship model is measured by photoelectric sensor (13) in moment before encounter stage starts, ship model (10) front end (10) instantaneous velocity of ship model (10) before colliding with anticollision device, collision-prevention device (9), occurs ship model (10) and anticollision device, collision-prevention device later (9) collision.
4. the test method of the bridge pier collision impact experimental rig based on shipping anti-collision device according to claim 3, special Sign is, encounter stage start before preparation stage, it is as follows:
In the preparation stage, the weight (5) of certain mass is chosen, speed when colliding according to required ship model (10) adjusts The release altitude of weight (5) calculates the distance between ship model (10) and anticollision device, collision-prevention device (9), adjusts ship model (10) The distance between anticollision device, collision-prevention device (9);By keeping support column (8) and guide rail (1) multiple around concrete pier model (7) rotation Angle realizes the operating condition of test that the multi-angle of ship model (10) and anticollision device, collision-prevention device (9) is collided;Adjust the length of suspension cord (4) Degree adjusts the draft of ship model (10) and anticollision device, collision-prevention device (9);It in experimental stage, discharges weight (5), by traction Stage, art skating stage and encounter stage, ship model (10) and anticollision device, collision-prevention device (9) collision are completed, and photoelectric sensor is read (13) instantaneous velocity before ship model (10) collision measured, the i.e. test of completion one-shot.
5. the test method of the bridge pier collision impact experimental rig based on shipping anti-collision device according to claim 3, special Sign is: the water (12) in venting pond (11), the then impact test that the experimental rig can be used under water-less environment.
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