Sea-crossing bridge pier anti-collision buffer device

A buffer device and anti-collision technology, which is applied in bridges, bridge parts, bridge construction, etc., can solve problems such as difficulty in automation, loss of life and property, and unfavorable bridge pier protection

Active Publication Date: 2020-11-20
OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ship-bridge collision accidents will lead to the loss of life and property, have a serious impact on human activities, social stability and the natural environment, and directly endanger the safety of water transportation, roads, and railways. In severe cases, the ship will be destroyed and the bridge will collapse, causing heavy casualties and property losses
According to relevant reports and literature records at home and abroad, accidents of boat collisions with bridges have been occurring continuously all over the world. Even billions of dollars in property losses. At the same ti

Method used

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  • Sea-crossing bridge pier anti-collision buffer device
  • Sea-crossing bridge pier anti-collision buffer device
  • Sea-crossing bridge pier anti-collision buffer device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] See attached Figure 1-7 As shown, the anti-collision buffer device of cross-sea bridge pier includes:

[0032] The first anti-collision component 20 is sleeved on the pier 10 and the first anti-collision component 20 can move up and down relative to the pier 10;

[0033] The second anti-collision component 30 is sleeved on the pier 10, the second anti-collision component 30 is arranged under the first anti-collision component 20, and the second anti-collision component 20 can move up and down relative to the pier 10. The second anti-collision component 30 and the first anti-collision component 20 are connected by a steel rope 40;

[0034] Among them, the first anti-collision assembly 20 includes a protective washer 25 sleeved on the outside of the pier 10, the inner wall of the protective washer 25 and the outer wall of the pier 10 have a gap, the outer side of the protective washer 25 is provided with a main ring sleeve 21, the inner wall of the main ring sleeve 21 A coaxi...

Embodiment 2

[0044] This embodiment is further improved on the basis of embodiment 1 as follows: see appendix Figure 8 As shown, the back surface of the bridge pier 10 is provided with an auxiliary support 82. The auxiliary support 82 is vertically arranged and adjacent to the back surface of the pier. The auxiliary support 82 is a second rectangular frame perpendicular to the two sides of the rectangular frame. The rectangular frame is connected with a third rectangular frame 81, the third rectangular frame 81 and the second rectangular frame have an included angle, the auxiliary support 82, the second rectangular frame, and the third rectangular frame 81 are provided with mesh 82, A rotating shaft is connected between the two rectangular frames, and water guide plates 83 are evenly distributed on the surface of the rotating shaft. By designing the auxiliary support 82 on the back water surface of the bridge pier to provide auxiliary support after the pier 10 collides, the mesh 82 designed...

Embodiment 3

[0046] In this example, the first collision avoidance component 20 is modeled and numerically simulated, such as Picture 10 As shown, the first anti-collision component 20 absorbs the collision force through the deformation of the first buffer plate 22 on the main ring sleeve 21 and generates a corresponding rotation after being impacted. It can be seen that the stress on the bridge pier is small, and the first anti-collision The component 20 can change its structure to absorb impact energy when a collision occurs.

[0047] It should be noted that the maximum collision energy generated by the collision can be calculated according to the limited ship tonnage and speed in the relevant regulations of water navigation management, and then the first and second anti-collision components are parameterized according to the maximum collision energy. The optimization enables the anti-collision component to absorb most of the collision energy, and the pier 10 can be protected by the anti-co...

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PUM

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Abstract

The invention discloses a sea-crossing bridge pier anti-collision buffer device and belongs to the field of bridge safety protection. The device comprises a first anti-collision assembly. The first anti-collision assembly and a second anti-collision assembly are connected to a pier in a sleeving mode. The second anti-collision assembly is connected with the first anti-collision assembly through asteel rope; the first anti-collision assembly comprises a protective gasket connected to the outer side of the pier in a sleeving mode; a main ring sleeve is arranged on the outer side of the protective gasket; and a coaxial ring groove is formed in the inner wall surface of the main ring sleeve, two ring grooves are formed in the inner wall surface of the main ring sleeve, rotatable sliding steelrings are installed in the ring grooves and connected with the outer wall surface of the protective gasket through supporting pieces, the supporting pieces are arranged in a surrounding mode, and a first buoyancy air bag is arranged between the upper supporting piece and the lower supporting piece and surrounds the protective gasket. According to the device, a protection position can be adjustedalong with a water level, the piers in water can be protected at the same time, a ship movement direction can be changed during collision, graded collision is achieved, ship collision damage is reduced, and a radial impact force borne by skilled transition is decreased.

Description

Technical field [0001] The invention belongs to the field of bridge safety protection, and in particular relates to an anti-collision buffer device for a cross-sea bridge pier. Background technique [0002] With the rapid development of the transportation industry, the number of large bridges that have recently been built across navigable rivers, port areas and straits has gradually increased, and the number of ships on the waterways has also increased and the ship types tend to be large, making bridges and navigable ships The contradiction between them is becoming more and more prominent, so the accidents of ships hitting bridge piers are also increasing. A ship-bridge collision accident will cause the loss of life and property, seriously affect human activities, social stability and the natural environment, and directly endanger the safety of water transportation, roads and railways. The lighter ones will cause damage to ships and bridges and affect them. In the service life, ...

Claims

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Application Information

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IPC IPC(8): E01D19/02E02B3/26
CPCE01D19/02E02B3/26Y02A30/30
Inventor 周晗宇陈磊戴林伟朱明栋俞超超
Owner OCEAN RES CENT OF ZHOUSHAN ZHEJIANG UNIV
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