CN205224123U - Outer anti -corrosion metal material's of cladding of concrete caisson structure - Google Patents
Outer anti -corrosion metal material's of cladding of concrete caisson structure Download PDFInfo
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- CN205224123U CN205224123U CN201520907393.4U CN201520907393U CN205224123U CN 205224123 U CN205224123 U CN 205224123U CN 201520907393 U CN201520907393 U CN 201520907393U CN 205224123 U CN205224123 U CN 205224123U
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Abstract
The utility model discloses an outer anti -corrosion metal material's of cladding of concrete caisson structure, including corrosion resistant metal board, outside template, double -screw bolt, nut and concrete caisson, the cladding of corrosion resistant metal board is at the outer wall of concrete caisson, and the shape that the inner wall of corrosion resistant metal board is constituteed is the same with concrete caisson outline, the double -screw bolt runs through corrosion resistant metal board and outside template in proper order, and the both ends of double -screw bolt expose corrosion resistant metal board and outside template respectively, the both ends of nut screw in double -screw bolt make corrosion resistant metal board and outside template closely laminate, and the corrosion resistant metal inboard inclines the double -screw bolt that exposes and is pour into in the concrete caisson. It compares to cover anticorrosion structure outward with other, the utility model discloses do not need to punch to fashioned concrete structure, avoided the destruction of outer cladding process to concrete structure.
Description
Technical field
The utility model belongs to concrete guard technology field in marine environment, relates to a kind of structure of concrete caisson outer cladding corrosion-resistant metallic material.
Background technology
In recent years, country, to the support of marine economy development, not only will promote that Ocean Technology in China is from nearly shallow sea to the strategic shift in far-reaching sea, also will promote that each field is to the development utilizing level and associated criticality technology of marine resources further.At exploitation ocean and coastal engineering technical elements, " country's " 12 " Marine Sciences and technical development plan outline " is pointed out, give priority to change off land deep water port marine structure thing construction technique, seabed tunnel engineering and technological research and demonstration, marine structures building technology, ocean new material and anticorrosion technique etc.
Gravity caisson structure pattern be distributed more widely in China coast structure, use more a kind of structural shape, be widely used in China coast port works build in.Its advantage be good integrity, firm in structure durable, steel using amount is few, cost is lower, strong adaptability, construction are comparatively simple.Increasingly increase along with the development of water industry, deep-water berth are built, the precast caisson taking steel concrete as base material, gradually to large scale, low weight, multifunction development, is applied also more extensive.Reinforced Concrete Materials is the chief component of harbour engineering structure, almost all widely uses in all offshore engineerings such as port and pier, bridge spanning the sea, tide power plant and seabed tunnel.But in complicated harsh marine environment, due to the volume expansion that corrosion of steel bar produces, will exceed 2 ~ 7 times of its original volume, the swelling stress of generation reaches as high as 60MPa, thus concrete is caused to occur along muscle spalling.Concrete in marine environment structure is often split less than within 10 years, just to there will be along muscle rust distending, is peeled off, You Yilangjian district and Tidal zone more very, the safety of serious threat concrete structure.The concrete structures durability reduction caused because of reinforcement corrosion has become the principal element affecting ocean engineering safe operation and service life, is also one of principal element affecting gravity reinforced concrete caisson structure durability.
Delaying concrete reinforcement corrosion is the emphasis ensureing concrete structure durability.Common method for preventing and treating Rust of Rebar in Concrete in ocean engineering mainly contains following several: (1) adopts high-performance high-quality dense concrete, (2) at concrete surface brushing anticorrosive paint, (3) in concrete, reinforcing steel bar corrosion inhibitor is participated in, (4) before construction to reinforcing bar be coated with/coating protection (as epoxy-coated reinforcement, galvanizing steel etc.), (5) cathodic protection is carried out to the reinforcing bar in concrete, (6) resistant material such as stainless steel rebar or fiber reinforced plastics bar is selected to substitute plain bars.
For gravity concrete caisson structure, particularly for the offshore type under harshness corrosion marine environment or the caisset in off-lying sea area, require reinforced concrete structure to have high-durability and projected life planted agent as far as possible non-maintaining or to safeguard less.But due to the design feature of gravity caisson and weight demands, corrosion protection steps conventional at present mainly adopts high-performance high-quality dense concrete, external coating anticorrosive paint or selects epoxy-coated reinforcement to substitute plain bars, but because said method limitation is separately difficult to the requirement meeting reinforced concrete structure high-durability, in the urgent need to more advanced, long-acting guard technology, more efficiently protection is carried out to the reinforced concrete structure of being on active service with caisset pattern.
Based on this; the utility model is for a kind of method at the coated one deck corrosion-resistant metallic material of its external surface of anticorrosion utility model of light weight concrete construction caisset under aggressive marine environment; comprise corrosion resistant metal plate was selected, designed to corrosion-resistant metallic material specification and installation site, field installation process and points for attention etc.; providing the method for a set of simple possible for realizing the coated corrosion resistant material of large area caisson reinforced concrete structure external surface, being particularly useful for the protection to Lang Jian district and Tidal zone.The method for coating that the utility model proposes is prefabricated with template before concreting synchronously to carry out, and destroys concrete structure, combine closely with the construction technology of concrete caisson without the need to the later stage.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of structure of concrete caisson outer cladding corrosion-resistant metallic material of utility model, compared with other cover anticorrosion structure outward, the utility model does not need to punch in type concrete structure, avoids the destruction of outer cladding process to concrete structure.
To achieve these goals, the utility model is achieved through the following technical solutions:
A kind of structure of concrete caisson outer cladding corrosion-resistant metallic material, comprise corrosion resistant metal plate (1), outboard template (2), stud (3), nut (4) and concrete caisson (5), corrosion resistant metal plate is coated on the outer wall of concrete caisson, the shape that the inwall of corrosion resistant metal plate forms is identical with concrete caisson outline, described stud runs through corrosion resistant metal plate and outboard template successively, and the two ends of stud expose corrosion resistant metal plate and outboard template respectively, the two ends that described nut screws in stud make corrosion resistant metal plate and outboard template fit tightly, and the nut inside the stud exposed inside corrosion resistant metal plate and corrosion resistant metal plate is built in concrete caisson.
In such scheme, the hole that corrosion resistant metal plate is identical with outboard template being provided with quantity, size is identical, position is corresponding, in order to penetrate stud.
In such scheme, the material of described stud, nut, corrosion resistant metal plate three is identical.
The utility model has following advantage compared with other concrete caisson anticorrosion structures:
1, for lightweight caisson concrete structure, the utility model has simple and feasible mounting process, is applicable to the Surface coating of large area concrete plane;
The structure of the concrete caisson outer cladding corrosion-resistant metallic material that 2, the utility model proposes, can utilize the outboard template of concreting as braced structures, installation process with build operation and combine closely.Compared with other outer coating techniques, do not need to punch in type concrete structure, avoid the destruction of outer cladding process to concrete structure.
Accompanying drawing explanation
Fig. 1 is the structural representation of corrosion resistant metal plate and outboard template in the utility model.
Fig. 2 is the structural representation in the utility model after corrosion resistant metal plate and outboard template stud and nut screw connection, only depicts two nuts as explanation, do not indicate all in figure.
Fig. 3 builds the concrete caisson of cuboid for example, utilizes the structural representation of corrosion resistant metal plate and the assembled formwork of outboard template.
Fig. 4 is view when carrying out concreting.
Fig. 5 is concreting when completing, and structural representation when outboard template not being unloaded.
Fig. 6 is the structural representation that concrete caisson finally completes.
Detailed description of the invention
The method making the structure of concrete caisson outer cladding corrosion-resistant metallic material described in the utility model is as follows:
In conjunction with the feature of corrosive environment, the material of material and stud 3 and the nut 4 determining corrosion resistant metal plate 1 is tested (first by corrosion evaluation, the marine environment of concrete caisson institute service condition is investigated, comprise hydrologic condition, sea water conductivity, year-round average temperature, chloride ion content etc., in conjunction with the feature of corrosive environment, under simulation or actual corrosive environment, corrosion evaluation test is carried out to the corrosion resistant metal plate intending selecting by effective corrosion evaluation means, OCP should be comprised, polarization curve, the electrochemical methods such as AC impedance, or salt spray test, stress corrosion (cracking) test, two or more of the corrosion tests such as corrosion coupon test, then according to result of the test and material cost selecting factors corrosion resistant metal plate 1, the material of stud 3 and nut 4), stud 3 is identical with the material of corrosion resistant metal plate 1 with the material of nut 4, to avoid galvanic corrosion occurs, the specification (comprising shape, size, area) of corrosion resistant metal plate 1 is determined (comprising shape, size, area), to ensure that corrosion resistant metal plate 1 can the complete claimed surface of closed concrete caisson according to the specification of the concrete caisson that will build.
See Fig. 1, respectively in corrosion resistant metal plate 1 and the boring of outboard template 2 marginal position place, the position that both hole is consistent, and (quantity of the hole 1-1 namely on corrosion resistant metal plate 1 is identical with the quantity of the hole 2-1 on outboard template 2, the size of the hole 1-1 on corrosion resistant metal plate 1 is identical with the size of the hole 2-1 on outboard template 2, the position of the hole 1-1 on corrosion resistant metal plate 1 is corresponding with the position of the hole 2-1 on outboard template 2), drilling hole amount depends on the weight of corrosion resistant metal plate, weight more heavily needs the active force of anchoring larger, drilling hole amount is also more, and vice versa.
The inner surface of corrosion resistant metal plate 1 with outboard template 2 is fitted tightly, and stud 3 is penetrated outboard template 2 and corrosion resistant metal plate 1, and make the two ends of stud 3 expose corrosion resistant metal plate 1 and outboard template 2 respectively, be preferably the stud length exposed corrosion resistant metal plate 1 side be at least 1/2 of concrete caisson thickness and be no more than caisson wall thickness, the stud length that outboard template 2 side is exposed is 1-3 times (1-5cm) of nut 4 thickness; Then nut 4 is screwed in respectively the two ends of stud 3, corrosion resistant metal plate 1 and outboard template 2 to be closely fixed together (see Fig. 2), the nut 4-1 inside corrosion resistant metal plate 1 and stud 3 spot welding are reinforced.
By building requirement, the corrosion resistant metal plate 1 be fixed together in step 3 is assembled into outboard template 2 shape being applicable to the concrete caisson that will build, the shape that corrosion resistant metal plate 1 forms is identical with the shape of the concrete caisson that will build, as shown in Figure 3, to build the concrete caisson of cuboid, the corrosion resistant metal plate 1 be fixed together in step 3 and outboard template 2 is needed to be assembled into the cuboid identical with the concrete caisson outline that will build, ensure time assembled that corrosion resistant metal plate 1 is in the inner side of outboard template 2, namely assembled good after the shape that forms of the inwall of all corrosion resistant metal plates 1 identical with the concrete caisson outline that will build, such guarantee has built the concrete caisson of shape required by rear formation.
Concreting 5 (Fig. 4) in corrosion resistant metal plate 1, makes the nut 4-1 inside the stud that exposes inside corrosion resistant metal plate and corrosion resistant metal plate be built in concrete caisson.
Until concrete caisson build shaping after (Fig. 5), first the nut 4 outside outboard template 2 is unloaded, then outboard template 2 is unloaded and make it to be separated with corrosion resistant metal plate 1, again nut 4 screwed in stud 3 again and hold out against corrosion resistant metal plate 1, and necessary encapsulation process is carried out to the connection gap at stud, nut and the outboard template three place of combining, finally will the welding rod identical with corrosion resistant metal material between corrosion resistant metal plate 1, be adopted to carry out single-selded lap joint, concrete caisson is closed by corrosion resistant metal plate, completes (Fig. 6) to concrete caisson described in this.
To sum up, the structure (see Fig. 5) of concrete caisson outer cladding corrosion-resistant metallic material described in the utility model, comprise corrosion resistant metal plate 1, outboard template 2, stud 3, nut 4 and concrete caisson 5, corrosion resistant metal plate is coated on the outer wall of concrete caisson, the shape that the inwall of corrosion resistant metal plate forms is identical with concrete caisson outline, described stud runs through corrosion resistant metal plate 1 and outboard template 2 successively, and the two ends of stud expose corrosion resistant metal plate and outboard template respectively, the two ends that described nut screws in stud make corrosion resistant metal plate and outboard template fit tightly, and the nut 4-1 inside the stud exposed inside corrosion resistant metal plate and corrosion resistant metal plate is built in concrete caisson.
Above exemplary description is done to the utility model; should be noted that; when not departing from core of the present utility model, any simple distortion, amendment or other those skilled in the art can not spend the equivalent replacement of creative work all to fall into protection domain of the present utility model.
Claims (3)
1. the structure of a concrete caisson outer cladding corrosion-resistant metallic material, it is characterized in that: comprise corrosion resistant metal plate (1), outboard template (2), stud (3), nut (4) and concrete caisson (5), corrosion resistant metal plate is coated on the outer wall of concrete caisson, the shape that the inwall of corrosion resistant metal plate forms is identical with concrete caisson outline, described stud runs through corrosion resistant metal plate and outboard template successively, and the two ends of stud expose corrosion resistant metal plate and outboard template respectively, the two ends that described nut screws in stud make corrosion resistant metal plate and outboard template fit tightly, and the nut inside the stud exposed inside corrosion resistant metal plate and corrosion resistant metal plate is built in concrete caisson.
2. the structure of concrete caisson outer cladding corrosion-resistant metallic material according to claim 1, is characterized in that: the hole that corrosion resistant metal plate is identical with outboard template being provided with quantity, size is identical, position is corresponding.
3. the structure of concrete caisson outer cladding corrosion-resistant metallic material according to claim 1, is characterized in that: the material of described stud, nut, corrosion resistant metal plate three is identical.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520907393.4U CN205224123U (en) | 2015-11-13 | 2015-11-13 | Outer anti -corrosion metal material's of cladding of concrete caisson structure |
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| CN201520907393.4U CN205224123U (en) | 2015-11-13 | 2015-11-13 | Outer anti -corrosion metal material's of cladding of concrete caisson structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044567A (en) * | 2021-12-15 | 2022-02-15 | 山东港湾建设集团有限公司 | Corrosion-resistant sterilization device for large-scale water intake caisson and installation and construction method thereof |
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2015
- 2015-11-13 CN CN201520907393.4U patent/CN205224123U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114044567A (en) * | 2021-12-15 | 2022-02-15 | 山东港湾建设集团有限公司 | Corrosion-resistant sterilization device for large-scale water intake caisson and installation and construction method thereof |
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