A kind of foamed aluminium bridge pier protection guard
Technical field
The utility model relates to bridge pier protection guard technical field, specifically a kind of foamed aluminium bridge pier protection guard.
Background technique
China has a vast territory, is mountain more than one, the country of more natural calamities, on the western parts such as Sichuan, Tibet, Guizhou and other places,
Annual flood, mud-rock flow take place frequently, and do great damage to the bridge facility in traffic, even destroy, form great
Security risk seriously constrains local economic development, threatens people's life and property safety.Foamed aluminium Bridge Pier body is answered
With can protect bridge to greatest extent, in the maintenance in later period, a large amount of human and material resources, financial resources can be saved, be bridge
Safety, expanding economy provide guarantee.Traditional Bridge Pier cover is made of macromolecule chemical industry material, this shield
Defect be need to make at the scene, and be it is fixedly mounted, be not available for local replacing, weather resistance is poor, and different aging can not
Environment is polluted in recycling.Traditional Bridge Pier cover cannot be effectively prevented mudstone drift sand, the mutual friction of sandstone phase, hit bring
It destroys, and the phase mutual friction, shock of rainwater and sandstone month after month throughout the year eventually leads to bridge pier bottom and is corroded, degenerates, it is only remaining
Reinforcing bar pillar.Certainly will thus influence whether the robustness of bridge pier, thus occur ground it is not firm, it is easy collapse etc. perils.
Some bridge piers use some protective devices at present, these protective devices are broadly divided into two kinds: one is outside bridge pier
Portion is surrounded with steel plate, intermediate cementing, but when by big impact, outer protective does not have the effect of energy-absorbing, generates big
Bridge pier can be equally damaged when deformation;Another is to be surrounded outside bridge pier using steel plate, intermediate polymeric foamed material, still
Under severe natural environmental condition, high molecular material is just quickly invalidated hardening, loses energy-absorbing function, causes shielding failure,
It cannot play the role of protecting bridge pier.
Utility model content
The purpose of this utility model is to provide a kind of foamed aluminium bridge pier protection guard, using the energy-absorbing function of foamed aluminium,
Reduce sandstone, water flow impact friction power and reach height protect.
To achieve the above object, the utility model provides the following technical solutions:
A kind of foamed aluminium bridge pier protection guard, including two arc tubes, upper arc flange, arc lower flange, connecting flange,
Adjustable elongated hole and spacer bar, the arc tube include steel plate and foamed aluminium from outside to inside, and the steel plate and foamed aluminium are
Arcuate structure, the both ends of the arc tube, which are respectively arranged on a connecting flange and the connecting flange, offers several adjustable length
Shape hole is mutually adjacent to positioned at the connecting flange outer surface of two arc tubes of the same side and two arc tubes is spliced into entire cylinder
Body, the upper surface of the steel plate and upper arc flanged joint, the lower surface of the steel plate and arc lower flanged joint, the upper arc
It is drilled with location hole on shape flange and arc lower flange, for installing spacer bar.
As a further solution of the present invention: the steel plate and foamed aluminium are composite construction, the arc tube includes
At least one layer of steel plate and foamed aluminium.
As a further solution of the present invention: the arc tube is round, ellipse or abnormally-structured, the arc
Cylinder is positive the heart or eccentric structure.
Compared with prior art, the utility model has the beneficial effects that
Foamed aluminium body is light, and damping and amortization is good, and damping capacity is 5-10 times of metallic aluminium, and bending resistance specific stiffness is 1.5 times of steel, inhales
Energy property is good, and the foamed aluminium that porosity is 84% can absorb the energy of 2500KJ or more when 50% deformation occurs, with its outside
After steel body cooperation, energy absorption performance is substantially improved 50% or more, i.e., porosity be 84% foamed aluminium when 50% deformation occurs,
The energy of absorbable 3500KJ or more, compared with other polymeric foamed materials, foamed aluminium also has a nontoxicity, good weatherability,
Performance is stablized, corrosion resistance, agent of low hygroscopicity, not aging, will not with temperature, humidity variation and the characteristic that changes.
Matching foamed aluminium material protective device, Ke Yi are made according to the height of bridge pier, radius for the utility model
The energy absorption characteristics that foamed aluminium material is played when sandstone, water flow friction are washed away reach protection effect;The utility model uses steel plate+bubble
The composite construction of foam aluminium, can rounded, oval or special-shaped package, it can be achieved that multilayer is wrapped up, can the positive heart, eccentric package, can be real
Existing modularized production;The utility model can take into account Wear-proof, anticollision both protective actions, strong applicability, flexible high-efficiency, just
It is prompt quick.
On the one hand the utility model makes full use of the property of foamed aluminium material, half arc-shaped device is made, and forms foam
Aluminium protective device protects bridge pier, ensure that the solidity and robustness of bridge pier.On the other hand, when the bridge for needing to protect is in certainly
When the more severe mountain area of right condition, the utility model can realize the Al-Qaeda terrorist organization's modularized production, live Fast Installation, because it is
It is composed of two parts arc tube, in the maintenance in later period, local replacing can be carried out according to field condition, can saved big
The human and material resources of amount, financial resources.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of foam bridge pier protection guard;
Fig. 2 is a kind of single layer structure top view of foam bridge pier protection guard;
Fig. 3 is a kind of double-layer structure top view of foam bridge pier protection guard;
In figure: the upper arc flange of 1- steel plate, 2- foamed aluminium, 3-, 4- arc lower flange, 5- connecting flange, that 6- is adjustable is elongated
Hole, 7- spacer bar.
Specific embodiment
Below in conjunction with the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out clear, complete
Site preparation description, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, in the utility model embodiment, a kind of foamed aluminium bridge pier protection guard, including two arc tubes,
Upper arc flange 3, arc lower flange 4, connecting flange 5, adjustable elongated hole 6 and spacer bar 7, arc tube include from outside to inside to
Few one layer of steel plate 1 and foamed aluminium 2, steel plate 1 and foamed aluminium 2 are arcuate structure, and steel plate 1 and foamed aluminium 2 are composite construction,
The both ends of arc tube, which are respectively arranged on a connecting flange 5 and the connecting flange 5, offers several adjustable elongated holes 6, is located at
5 outer surface of connecting flange of two arc tubes of the same side is mutually adjacent to and two arc tubes are spliced into entire cylinder, steel plate 1
Upper surface connect with upper arc flange 3, the lower surface of steel plate 1 is connect with arc lower flange 4, upper arc flange 3 and arc lower
It is drilled with location hole on flange 4, for installing spacer bar 7.
In the utility model embodiment, arc tube as shown in Figure 1 includes two layers of steel plate 1 and foamed aluminium 2 from outside to inside,
Namely from outside to inside successively include steel plate 1, foamed aluminium 2, steel plate 1,2 four-layer structure of foamed aluminium, wherein the thickness of two-layered steel plates 1 from
Arriving outside inner is respectively 10mm and 3mm, and the thickness of two layers of foam aluminium 2 is respectively 40mm and 60mm from outside to inside.Arc shown in Fig. 2
Cylinder includes the steel plate 1 and foamed aluminium 2 of single layer from outside to inside, and arc tube shown in Fig. 3 includes double-deck steel plate 1 and bubble from outside to inside
Foam aluminium 2.
Matching foamed aluminium material protective device, Ke Yi are made according to the height of bridge pier, radius for the utility model
The energy absorption characteristics that foamed aluminium material is played when sandstone, water flow friction are washed away reach protection effect;The utility model uses steel plate+bubble
The composite construction of foam aluminium, can rounded, oval or special-shaped package, it can be achieved that multilayer is wrapped up, can the positive heart, eccentric package, can be real
Existing modularized production;The utility model can take into account Wear-proof, anticollision both protective actions, strong applicability, flexible high-efficiency, just
It is prompt quick.
On the one hand the utility model makes full use of the property of foamed aluminium material, half arc-shaped device is made, and forms foam
Aluminium protective device protects bridge pier, ensure that the solidity and robustness of bridge pier.On the other hand, when the bridge for needing to protect is in certainly
When the more severe mountain area of right condition, the utility model can realize the Al-Qaeda terrorist organization's modularized production, live Fast Installation, because it is
It is composed of two parts arc tube, in the maintenance in later period, local replacing can be carried out according to field condition, can saved big
The human and material resources of amount, financial resources.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in
All changes in justice and range are embraced therein.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.