CN106978780B - A kind of bridge pier protection guard - Google Patents

A kind of bridge pier protection guard Download PDF

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Publication number
CN106978780B
CN106978780B CN201710316210.5A CN201710316210A CN106978780B CN 106978780 B CN106978780 B CN 106978780B CN 201710316210 A CN201710316210 A CN 201710316210A CN 106978780 B CN106978780 B CN 106978780B
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China
Prior art keywords
bridge pier
cell block
round tube
shell
energy
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Application number
CN201710316210.5A
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Chinese (zh)
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CN106978780A (en
Inventor
黄俨
高玉峰
许文锦
向星宇
涂利
王国斌
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Sichuan hengshengjie Technology Co., Ltd
Sichuan Tietuo Technology Co ltd
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四川恒晟捷科技有限责任公司
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Publication of CN106978780A publication Critical patent/CN106978780A/en
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Classifications

    • 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
    • E01D19/02Piers; Abutments ; Protecting same against drifting ice
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/20Equipment for shipping on coasts, in harbours or on other fixed marine structures, e.g. bollards
    • E02B3/26Fenders
    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D2101/00Material constitution of bridges
    • E01D2101/40Plastics
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/30Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways

Abstract

The invention discloses a kind of bridge pier protection guards, including are arranged in bridge pier outer surface, and multiple protective unit blocks interconnected;Protective unit block includes the cell block shell and the round tube for the array distribution that cell block interior of shell is arranged in of barreled structure;The round tube passes through distributed scattered power frame connection;Buffer layer is filled between cell block shell and round tube;The present invention can be realized stepped energy dissipation process when facing the shock of different-energy grade, can adapt to different protection energy grade demands;It is capable of providing longer impact displacement, extends collision time;Cell block composition, overall cost is low, is easily installed and safeguards.

Description

A kind of bridge pier protection guard
Technical field
The present invention relates to Structural Engineerings to protect field, and in particular to a kind of bridge pier protection guard.
Background technique
With the development of market economy, traffic each place throughout the country, due to various each in mountain area, valley The geological disaster of sample;It is never taken seriously in these regional Bridge Pier protection, so that bridge resists bad disaster Ability is much insufficient, brings acid test to the safety of bridge;In cross a river bridge, due to human factor, market is adjoint Various ship collision accidents, so as to cause bridge pier by various different degrees of damages, or even severing bridge pier makes bridge collapse;It is built in city If municipal road network in the process is increasingly intensive, various municipal administration elevated overpass beams are intricate, and with the substantially increasing of the volume of traffic Long, the risk of Vehicular impact bridge pier greatly increases;In serious bridge pier shock accident, in addition to casualties and it is huge directly Outside economic loss, the direct economic loss brought by traffic lines are blocked and social influence are even more difficult to the appraisal.
Currently, for the various mostly no special protection designs of progress in bridge pier position for existing and hitting risk, it is only a Simple safeguard procedures have been set as needed in other bridge pier;Although these easy measures can slow down shock to a certain extent The shock of object and bridge pier damages, but still there are shortcomings and deficiency;For example, by using safeguard structure form it is simple, destroy It consumes energy in the form of a single, it can not effective protection to high-energy impact object;Related Bridge Pier mainly takes some simple protection to arrange Apply, as: steel pile casting, concrete strengthening bridge pier and relatively simple flexible protective body etc.;It is existing when bridge pier is hit Flexible pier protective device structure simple coarse, energy consumption it is in the form of a single, when in face of the shock of high-energy, most of energy still by Bridge pier is born, and bridge pier nevertheless suffers from larger impact force, and the protection of the type cannot effectively reduce the impact force that bridge pier is subject to, thus Due protection cannot be played to bridge pier;Existing protective device there is also the single fixation of structure, cannot be according to different preventing nurse Condition adjusts stiffness by itself to adapt to different protection energy requirements;And claim that cost, installation maintenance cost are high.
Summary of the invention
The present invention, which provides, a kind of is suitable for the good bridge pier protection guards of different protection energy grade demands, protection effects.
The technical solution adopted by the present invention is that: a kind of bridge pier protection guard, including setting are interconnected in bridge pier outer surface, and mutually The multiple protective unit blocks connect;Protective unit block includes the cell block shell of barreled structure and cell block interior of shell is arranged in The round tube of array distribution;The round tube passes through distributed scattered power frame connection;Filled with buffering between cell block shell and round tube Layer.
Further, the distributed scattered power frame is to connect to be formed with the polygonized structure that round tube diameter matches.
Further, the distributed scattered power frame is provided with multilayer on round tube length direction.
Further, the cell block shell one side edge extends to form otic placode outward, between protective unit block Connection.
Further, the cell block shell is resin base fiber reinforced composite material.
Further, the buffer layer is closed pore Multi cell structure material.
Further, the protective unit block is arranged by anchor ear and bolt in bridge pier outer surface.
The beneficial effects of the present invention are:
(1) present invention can be realized stepped energy dissipation process when facing the shock of different-energy grade, can Adapt to different protection energy grade demands;
(2) present invention is capable of providing longer impact displacement, extends collision time;
(3) present invention is made of cell block, and overall cost is low, is easily installed and safeguards.
Detailed description of the invention
Fig. 1 is inner section structural map of the present invention.
Fig. 2 is energy-dissipation structure structural map of the present invention.
Fig. 3 is rigid shock counter-force time-history curves in the case of unshielded device.
Fig. 4 is rigid shock counter-force time-history curves in the case of having protective device.
In figure: 1- cell block shell, 2- distribution dissipate power frame, 3- round tube, 4- buffer layer, 5- otic placode.
Specific embodiment
The present invention will be further described in the following with reference to the drawings and specific embodiments.
As shown in Figs. 1-2, a kind of bridge pier protection guard, including setting is in bridge pier outer surface, and interconnected multiple anti- Protect cell block;Protective unit block includes the cell block shell 1 of barreled structure and the array being arranged in inside cell block shell 1 point The round tube 3 of cloth;The round tube 3 is connected by distributed scattered power frame 2;Buffer layer 4 is filled between cell block shell 1 and round tube 3.
Further, the distributed scattered power frame 2 is to connect to be formed with the polygonized structure that 3 diameter of round tube matches;This Kind structure can make one entirety of formation of round tube 3 that consumes energy, and be fixed by the distributed power frame 2 that dissipates.
Further, the distributed scattered power frame 2 is provided with multilayer on 3 length direction of round tube;This structure is more Stablize.
Further, 1 one side edge of cell block shell extends to form otic placode 5 outward, for protective unit block it Between connection.
Further, the cell block shell 1 is resin base fiber reinforced composite material, using this kind of material is wear resistant performance Good, toughness is high.
Further, the buffer layer 4 is closed pore Multi cell structure material, can choose PMI foamed plastics or foamed aluminium.
Further, the protective unit block is arranged by anchor ear and bolt in bridge pier outer surface.
In use, the round tube 3 that distributed scattered power frame 2 connects array constitutes energy-dissipation structure, it is arranged in cell block shell 1 Portion constitutes protective unit block;It is connected with each other, is arranged in bridge pier outer surface between protective unit block;When protective device is hit by ship When hitting, active force first passes through the distribution that cell block shell 1 passes to inside cell block and dissipates power frame 2, and the scattered power frame 2 of distribution again will The evenly dispersed round tube 3 to inside cell block of impact force;Round tube 3 and distributed scattered power frame 2 are squeezed by the plastic deformation of itself Buffer layer 4 between pressure building;Above-mentioned each stage is along with different degrees of energy consumption process, and energy consumption is with shock The development of process and stepped increase is constantly presented, realize have high-efficiency stepped formula energy consumption effect.
Part impact energy can be converted into non-ballistic performance by plastic deformation or other forms by the structure in the present invention, Rather than it is stored as elastic energy;For the rammer of different-energy grade, required protective capacities is not identical;If rammer Energy is larger and the energy dissipation capability of protective device is obviously insufficient, will result directly in the bridge pier acting protected, to generate Biggish impact force;If inadequate it will cause the waste of material by the very big of the energy dissipation capability raising of protective device It is economical;Apparatus of the present invention can adapt to different protection energy grade demands, while its own hitting in face of different-energy grade It can be realized stepped energy consumption effect when hitting;The present apparatus can not only absorb enough energy by itself plastic deformation, and And the counter-force peak holding that bridge pier is passed in collision is lower than the threshold value for causing structural damage, and reaction force almost maintains It is constant, avoid excessively high rate of deceleration;Because power work done is equal to its size multiplied by the displacement occurred along line of force, such as exist The reaction force that bridge pier is passed to when collision almost remains constant, to make protective device absorb biggish impact energy, then requires It impacts displacement long enough;In addition, for certain impact momentum, the attack time is longer according to theorem of impulse, then impact force is just It is smaller;The device enables to working time of collision to extend, then Percussion counter-force will accordingly reduce, the damage that bridge pier is subjected to With regard to smaller, the present apparatus is capable of providing longer impact displacement, extends the time of effect of impact;Device is integrally made of cell block, When Individual cells block destroys in protective device, the cell block damaged is only needed to change, is not necessarily to integral replacing;For river valley and interior Bridge Pier in river valley because its it is long-term bear washing away for water flow and silt, surfacing should have enough wear-resisting Corrosion, present apparatus cell block shell are prepared using wear-resistant material;And the device quality is relatively light, is readily transported and installs, With high specific energy absorption, energy efficiency is high;When in use, round tube 3 and the distributed scattered assembling of power frame 2 are constituted into energy consumption first Then energy-dissipation structure is placed in cell block shell 1 by structure, finally inject in gap 4 material of buffer layer and formed;Present apparatus tool There is higher energy consumption effect, having the big Percussion counter-force curve reduction of undulating value is to stir the small and constant ability of value, unit Block shell 1 has wear-resisting, resistance to erosion ability using wear-resistant material;So can operate with the protection against erosion in river, ditch cereal bridge pier The protection of equal positions.
Fig. 3 is the big logotype of Percussion counter-force verified under rigid impact, test method are as follows: is rushed using 340kg concrete Counterweight is hit, is suspended in midair at the 2.16m of ground by lifting machine, then by automatic decoupling device, impact counterweight is made to do freely falling body fortune It is dynamic to pound to impact platform;From figure 3, it can be seen that impact elapsed-time standards is 0.004s when platform receives impact, impact force is 1600KN, the fluctuation of counter-force curve are violent.
Fig. 4 is to have the big logotype of Percussion counter-force hit in the case of protection;Test method are as follows: use 340kg concrete Counterweight is impacted, is suspended in midair at the 2.16m of ground by lifting machine, then by automatic decoupling device, impact counterweight is made to do freely falling body The protective device on impact platform is pounded in movement;Figure 4, it is seen that being passed through than unprotected situation lower platform by impact The time gone through is long, and impact force is smaller;Impact elapsed-time standards is 0.049s, impact force 113KN;The relatively unshielded feelings of Percussion counter-force Under condition, appearance significantly reduces, and Percussion counter-force curve is steady.
The present invention is suitable for different protection energy grade demands, realizes staged energy dissipation process, and protection bridge pier is held The counter-force peak value received is limited, and keeps constant as far as possible;It is capable of providing longer impact displacement, extends the time of effect of impact, Protective device light weight, specific energy absorption rate are high;Overall cost is low, is suitable for installation, easy to maintain;Suitable for mountain area cheuch bridge pier Protection against erosion, abrasion;Road pier anti-collision, the interior anti-ship of river valley bridge pier hits equal neighborhoods, applied widely.

Claims (5)

1. a kind of bridge pier protection guard, it is characterised in that: including setting in bridge pier outer surface, and multiple protection interconnected are single First block;Protective unit block includes that the cell block shell (1) of barreled structure and setting divide in the internal array of cell block shell (1) The round tube (3) of cloth;The round tube (3) passes through distributed scattered power frame (2) connection;It is filled between cell block shell (1) and round tube (3) There are buffer layer (4);Described distributed scattered power frame (2) are to connect to be formed with the polygonized structure that round tube (3) diameter matches;It is described Distribution scattered power frame (2) is provided with multilayer on round tube (3) length direction.
2. a kind of bridge pier protection guard according to claim 1, it is characterised in that: described cell block shell (1) a side Edge extends to form otic placode (5) outward, for the connection between protective unit block.
3. a kind of bridge pier protection guard according to claim 1, it is characterised in that: the cell block shell (1) is resin Base fiber reinforced composite material.
4. a kind of bridge pier protection guard according to claim 1, it is characterised in that: the buffer layer (4) is the more born of the same parents of closed pore Structural material.
5. a kind of bridge pier protection guard according to claim 1, it is characterised in that: the protective unit block by anchor ear and Bolt is arranged in bridge pier outer surface.
CN201710316210.5A 2017-05-08 2017-05-08 A kind of bridge pier protection guard Active CN106978780B (en)

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Application Number Priority Date Filing Date Title
CN201710316210.5A CN106978780B (en) 2017-05-08 2017-05-08 A kind of bridge pier protection guard

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CN106978780B true CN106978780B (en) 2019-04-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107974979A (en) * 2017-12-30 2018-05-01 蒋春霞 A kind of bridge pier protective device
CN111472265B (en) * 2020-04-14 2021-09-10 南京理工大学 Pier protection device with assembled explosion impact resistance and installation method
CN112813804A (en) * 2020-12-31 2021-05-18 山西省交通科技研发有限公司 Underwater pier protection system based on solid waste recycling

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064327A (en) * 1998-08-24 2000-02-29 Ohbayashi Corp Base isolation structure of structure
CN203307756U (en) * 2013-05-23 2013-11-27 南京工业大学 Large chain-splicing-type buffering and energy-absorbing anti-collision device
CN103669262A (en) * 2013-12-31 2014-03-26 招商局重庆交通科研设计院有限公司 Spliced pier collision-preventing device
CN205474801U (en) * 2015-12-22 2016-08-17 长安大学 From floating bridge protection device
CN206828950U (en) * 2017-05-08 2018-01-02 四川恒晟捷科技有限责任公司 A kind of bridge pier protection guard

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000064327A (en) * 1998-08-24 2000-02-29 Ohbayashi Corp Base isolation structure of structure
CN203307756U (en) * 2013-05-23 2013-11-27 南京工业大学 Large chain-splicing-type buffering and energy-absorbing anti-collision device
CN103669262A (en) * 2013-12-31 2014-03-26 招商局重庆交通科研设计院有限公司 Spliced pier collision-preventing device
CN205474801U (en) * 2015-12-22 2016-08-17 长安大学 From floating bridge protection device
CN206828950U (en) * 2017-05-08 2018-01-02 四川恒晟捷科技有限责任公司 A kind of bridge pier protection guard

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Inventor after: Liu Mingjun

Inventor after: Tu Li

Inventor after: Wang Guobin

Inventor after: Song Haichao

Inventor after: Liu Shilong

Inventor after: Yu Yang

Inventor after: Chen Yangyi

Inventor after: Luo Juntao

Inventor after: He Qiang

Inventor after: Huang Yan

Inventor after: Gao Yufeng

Inventor after: Xu Wenjin

Inventor after: Xiang Xingyu

Inventor before: Huang Yan

Inventor before: Gao Yufeng

Inventor before: Xu Wenjin

Inventor before: Xiang Xingyu

Inventor before: Tu Li

Inventor before: Wang Guobin

TR01 Transfer of patent right

Effective date of registration: 20201021

Address after: 610000, No. 99, Golden Phoenix Road, Chengdu, Sichuan, Jinniu District

Patentee after: SICHUAN TIECHUANG TECHNOLOGY Co.,Ltd.

Patentee after: SICHUAN HENGSHENGJIE TECHNOLOGY Co.,Ltd.

Address before: Two road 611730 Sichuan city of Chengdu province Chengdu modern industrial port Gangbei District No. 569

Patentee before: SICHUAN HENGSHENGJIE TECHNOLOGY Co.,Ltd.

TR01 Transfer of patent right

Effective date of registration: 20220506

Address after: No. 508, 5th floor, building 6, No. 666, jinfenghuang Avenue, Jinniu high tech Industrial Park, Chengdu, Sichuan 610000

Patentee after: Sichuan tietuo Technology Co.,Ltd.

Patentee after: Sichuan hengshengjie Technology Co., Ltd

Address before: 610000 99 Golden Phoenix Road, Jinniu District, Chengdu, Sichuan.

Patentee before: SICHUAN TIECHUANG TECHNOLOGY Co.,Ltd.

Patentee before: Sichuan hengshengjie Technology Co., Ltd