CN103352418B - A kind of for the device of blast impulse under the water resistant of bridge pier - Google Patents
A kind of for the device of blast impulse under the water resistant of bridge pier Download PDFInfo
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- CN103352418B CN103352418B CN201310275855.0A CN201310275855A CN103352418B CN 103352418 B CN103352418 B CN 103352418B CN 201310275855 A CN201310275855 A CN 201310275855A CN 103352418 B CN103352418 B CN 103352418B
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Abstract
The present invention relates to a kind of for the device of blast impulse under the water resistant of bridge pier, including the rubber covering layer (6) being successively set on the elastic bunch circle (2) in bridge pier (1) outside, rigidity casing and hollow from inside to outside, described elastic bunch circle (2) is banded in the outside of bridge pier (1) and fixing with described rigidity casing is connected, being provided with truss structure (4) between described rigidity casing and described elastic bunch circle (2), described rubber covering layer (6) is bonded in outside described rigidity casing.Apparatus of the present invention utilize damping mismatch principle and stress wave transforming principle; the devices such as elastic bunch circle, rigid sleeve, rubber covering layer it are arranged around by bridge pier under water; the shock response such as acceleration of bridge pier under underwater explosive damage can be effectively reduced; decay underwater blast wave; absorb underwater explosion energy; reduce the damage under bridge pier explosive load under water, reach the purpose of protection bridge pier.
Description
Technical field
The present invention relates to bridge security field, more particularly, it relates to a kind of for the device of blast impulse under the water resistant of bridge pier.
Background technology
Bridge is the lifeblood of traffic route, and destroying enemy's large bridge wartime becomes the important means blocking traffic.In recent years, along with the construction of bridge spanning the sea and large-scale river-spanning bridge, large bridge protection in wartime becomes important subject.Utilizing the mode destructions to bridge pier such as Fish, submarine mine or canoe load explosive, destroy than bridge floor and be more difficult to repair, execution becomes apparent from, and deep-water pier is just become apparent from by the threat of underwater explosion.
Deep-water pier is when in the air, directly bear initial shock wave and bubble fluctuation pressure that underwater explosion produces, again owing to bridge pier is generally reinforced concrete structure, integral rigidity is bigger, serious damage will be produced when explosive distance is relatively near, explosive equivalent is bigger, even occur that bridge pier collapses, so that bridge entirety is destroyed.
Traditional anti-explosion design does not consider the effects of stress wave of underwater explosion loading, what directly adopt is consider blast load according to the mode amplifying dead load, the method taking in design to increase the rigidity of structure, but owing to which can make bridge pier integral rigidity increase, destroy easily caused by bridge pier entirety on the contrary.
Summary of the invention
The technical problem to be solved in the present invention is in that, it is provided that a kind of for the device of blast impulse under the water resistant of bridge pier.
The technical solution adopted for the present invention to solve the technical problems is: construct a kind of for the device of blast impulse under the water resistant of bridge pier, rubber covering layer including the elastic bunch circle being successively set on from inside to outside outside bridge pier, rigidity casing and hollow, described elastic bunch circle is banded in the outside of bridge pier and fixing with described rigidity casing is connected, being provided with truss structure between described rigidity casing and described elastic bunch circle, described rubber covering layer is bonded in outside described rigidity casing.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described bridge pier is provided with the first connecting elements, and described elastic bunch circle is banded on described first connecting elements.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described rigid enclosure case includes inner and outer wall, described inwall is provided with the second connecting elements, described elastic bunch circle is banded on described second connecting elements, described truss structure is connected between described inner and outer wall, and described rubber covering layer is bonded in the outside of described outer wall.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described rubber covering layer includes multiple tiles rubber monomer, described tiles rubber monomer all round closure, inner hollow and be provided with supporting construction.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described elastic bunch circle is the array distribution outside at described bridge pier.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described elastic bunch circle is Elastic Steel tow circle.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described rigidity casing is steel jacket box.
Under the water resistant for bridge pier of the present invention in the device of blast impulse, described rubber covering layer is bonded in outside described rigidity casing by waterproof adhesive.
Implement the device of blast impulse under the water resistant for bridge pier of the present invention, have the advantages that
(1), apparatus of the present invention utilize damping mismatch principle and stress wave transforming principle; the devices such as elastic bunch circle, rigid sleeve, rubber covering layer it are arranged around by bridge pier under water; the shock response such as acceleration of bridge pier under underwater explosive damage can be effectively reduced; decay underwater blast wave; absorb underwater explosion energy; reduce the damage under bridge pier explosive load under water, reach the purpose of protection bridge pier.
(2), the present invention can be additionally used in the bridge pier damage that collisions such as reducing boats and ships brings, it is achieved multifunctional usage.
(3) it is all comparatively convenient that the parts, in apparatus of the present invention are installed and changed, after an explosion wave can removable parts component in time, be continuing with.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is that the present invention is for the structural representation of the device of blast impulse under the water resistant of bridge pier；
Fig. 2 is the structural representation of rigid enclosure chamber interior wall；
Fig. 3 is the structural representation of rigid enclosure box outer wall；
Fig. 4 is the top view of tiles rubber monomer；
Fig. 5 is the side view of tiles rubber monomer.
Detailed description of the invention
In order to the technical characteristic of the present invention, purpose and effect are more clearly understood from, now comparison accompanying drawing describes the specific embodiment of the present invention in detail.
As it is shown in figure 1, the device of blast impulse includes elastic bunch circle 2, rigidity casing and rubber covering layer 6 under the water resistant for bridge pier of the present invention.
Elastic bunch circle 2, rigidity casing and rubber covering layer 6 are successively set on outside bridge pier 1 from inside to outside.Wherein, elastic bunch circle 2 is banded in the outside of bridge pier 1 and fixing with rigidity casing is connected, and is provided with truss structure 4 between rigidity casing and elastic bunch circle 2, and rubber covering layer 6 is bonded in outside rigidity casing.Rubber covering layer 6 is hollow structure, has air inside it.
When stress wave, sound wave etc. are propagated in two media interface, when the acoustic impedance of bi-material differs greatly, the stress wave or the magnitudes of acoustic waves that pass through are less, are called damping mismatch.When underwater blast wave arrives, first having an effect with the rubber covering layer 6 of hollow, shock wave, in the path through " rubber air rubber ", occurs large energy to lose due to damping mismatch principle, and shock wave peak value is decayed.After shock wave, rubber layer resiles under natural resiliency effect.
On the shock wave rigidity casing bigger to rigidity after rubber covering layer 6 is decayed, shock wave energy is largely converted into the kinetic energy of steel bushing, steel bushing generation mass motion.When shock wave energy is bigger, the plastic deformation of the logical rigidity casing of portion of energy and the moulding flexing of truss structure 4 absorb.
Elastic bunch circle 2 plays the effect of " defeating a force with a tenderness ", it is achieved that the conversion between rigidity casing kinetic energy and the elastic potential energy of elastic bunch circle 2, the periodic reverse motion of rigidity casing, and energy is consumed by the damping characteristic of water the most at last.After whole process terminates, by the elastic reaction of elastic bunch circle 2, rigidity casing recovers initial position.
Apparatus of the present invention utilize damping mismatch principle and stress wave transforming principle; the devices such as elastic bunch circle 2, rigid sleeve, rubber covering layer 6 it are arranged around by bridge pier 1 under water; the shock response such as acceleration of bridge pier 1 under underwater explosive damage can be effectively reduced; decay underwater blast wave; absorb underwater explosion energy; reduce the damage under bridge pier 1 explosive load under water, reach the purpose of protection bridge pier 1.The present invention can be additionally used in and reduces the bridge pier 1 that the collision such as boats and ships brings and damage, it is achieved multifunctional usage.It is all comparatively convenient that parts in apparatus of the present invention are installed and changed, after an explosion wave can removable parts component in time, be continuing with.
Further, bridge pier 1 is provided with the first connecting elements, and elastic bunch circle 2 is banded on the first connecting elements.Elastic bunch circle 2 can pass through truss structure 4 and be connected with rigidity casing.
Further, as shown in Figure 2 and Figure 3, rigid enclosure case includes inwall 3 and outer wall 5, inwall 3 is provided with the second connecting elements 301, elastic bunch circle 2 is banded on the second connecting elements 301, and truss structure 4 is connected between inwall 3 and outer wall 5, and rubber covering layer 6 is bonded in the outside of outer wall 5.The form of truss structure 4 has multiple, such as hexagon, octagon etc..
Further, as shown in Figure 3-Figure 5, rubber covering layer 6 includes multiple tiles rubber monomer 601, tiles rubber monomer 601 all round closure, inner hollow and be provided with supporting construction.Tiles rubber layer monomer can continuous laying, it is also possible at regular intervals.The supporting construction of the form such as ripple type, Y type can be set inside tiles rubber layer monomer hollow structure.
Further, as it is shown in figure 1, elastic bunch circle 2 is that array distribution is in the outside of bridge pier 1, it is possible to absorb the impact from all directions.
Further, elastic bunch circle 2 is preferably Elastic Steel tow circle, and cost is low, and has certain rigidity.
Further, rigidity casing is steel jacket box, it is easy to manufacture.
Further, rubber covering layer 6 is bonded in outside rigidity casing by waterproof adhesive.
Above in conjunction with accompanying drawing, embodiments of the invention are described; but the invention is not limited in above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under the enlightenment of the present invention; without departing under present inventive concept and scope of the claimed protection situation, it may also be made that a lot of form, these belong within the protection of the present invention.
Claims (5)
1. the device of blast impulse under the water resistant for bridge pier, it is characterized in that, including the rubber covering layer (6) being successively set on the elastic bunch circle (2) in bridge pier (1) outside, rigidity casing and hollow from inside to outside, described elastic bunch circle (2) is located at the outside of bridge pier (1) and fixing with described rigidity casing is connected, being provided with truss structure (4) between described rigidity casing and described elastic bunch circle (2), described rubber covering layer (6) is bonded in outside described rigidity casing；Described bridge pier (1) is provided with the first connecting elements, and described elastic bunch circle (2) is banded on described first connecting elements；Described rigid enclosure case includes inwall (3) and outer wall (5), described inwall (3) is provided with the second connecting elements (301), described elastic bunch circle (2) is banded on described second connecting elements (301), described truss structure (4) is connected between described inwall (3) and outer wall (5), and described rubber covering layer (6) is bonded in the outside of described outer wall (5)；Described rubber covering layer (6) is internal has air, described rubber covering layer (6) to include multiple tiles rubber monomer (601), described tiles rubber monomer (601) all round closure, inner hollow and be provided with supporting construction.
2. according to claim 1 for the device of blast impulse under the water resistant of bridge pier, it is characterised in that described elastic bunch circle (2) in array distribution in the outside of described bridge pier (1).
3. according to claim 1 for the device of blast impulse under the water resistant of bridge pier, it is characterised in that described elastic bunch circle (2) is Elastic Steel tow circle.
4. according to claim 1 for the device of blast impulse under the water resistant of bridge pier, it is characterised in that described rigidity casing is steel jacket box.
5. according to claim 1 for the device of blast impulse under the water resistant of bridge pier, it is characterised in that described rubber covering layer (6) is bonded in outside described rigidity casing by waterproof adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275855.0A CN103352418B (en) | 2013-07-02 | 2013-07-02 | A kind of for the device of blast impulse under the water resistant of bridge pier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275855.0A CN103352418B (en) | 2013-07-02 | 2013-07-02 | A kind of for the device of blast impulse under the water resistant of bridge pier |
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| Publication Number | Publication Date |
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| CN103352418A CN103352418A (en) | 2013-10-16 |
| CN103352418B true CN103352418B (en) | 2016-07-06 |
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| CN201310275855.0A Expired - Fee Related CN103352418B (en) | 2013-07-02 | 2013-07-02 | A kind of for the device of blast impulse under the water resistant of bridge pier |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103758030B (en) * | 2013-12-30 | 2015-10-07 | 浙江工业大学 | Outer tube constraint rubber concrete damping thin-wall piers |
| CN106087709B (en) * | 2016-08-08 | 2017-08-29 | 中北大学 | A kind of steel box-girder method in section design of explosion-proof percussion |
| CN106351116B (en) * | 2016-10-25 | 2018-01-16 | 东南大学 | A kind of composite multi-layer explosion-protection equipment for viaduct pier |
| CN109252488B (en) * | 2018-11-06 | 2020-07-24 | 淮阴工学院 | Dam explosion-proof and anti-icing device and construction method thereof |
| CN109252491B (en) * | 2018-11-06 | 2020-09-25 | 淮阴工学院 | Panel rock-fill dam explosion-proof protection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101748706A (en) * | 2008-12-15 | 2010-06-23 | 宁波大学 | Flexible energy-absorbing anti-impact structure |
| CN202000284U (en) * | 2010-11-17 | 2011-10-05 | 杨光华 | Protector for bridge pier and anti-collision pier |
| JP4791206B2 (en) * | 2006-02-16 | 2011-10-12 | 大成建設株式会社 | Water column structures |
| CN203475296U (en) * | 2013-07-02 | 2014-03-12 | 武汉理工大学 | Device for resisting explosion shock for pier |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040227051A1 (en) * | 2003-05-12 | 2004-11-18 | Bishop Lyndell Kevin | Floating structural object protection system |
| US8484787B2 (en) * | 2009-03-25 | 2013-07-16 | Board Of Supervisors Of Louisiana State University And Agricultural And Mechanics College | Fenders for pier protection against vessel collision |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4791206B2 (en) * | 2006-02-16 | 2011-10-12 | 大成建設株式会社 | Water column structures |
| CN101748706A (en) * | 2008-12-15 | 2010-06-23 | 宁波大学 | Flexible energy-absorbing anti-impact structure |
| CN202000284U (en) * | 2010-11-17 | 2011-10-05 | 杨光华 | Protector for bridge pier and anti-collision pier |
| CN203475296U (en) * | 2013-07-02 | 2014-03-12 | 武汉理工大学 | Device for resisting explosion shock for pier |
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| CN103352418A (en) | 2013-10-16 |
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