CN103321146B - Replaceable anticorrosion device for bridge pier in splash zone - Google Patents
Replaceable anticorrosion device for bridge pier in splash zone Download PDFInfo
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- CN103321146B CN103321146B CN201310275189.0A CN201310275189A CN103321146B CN 103321146 B CN103321146 B CN 103321146B CN 201310275189 A CN201310275189 A CN 201310275189A CN 103321146 B CN103321146 B CN 103321146B
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- replaceable
- reverse osmosis
- bridge pier
- steel sheet
- anticorrosion
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Abstract
The invention discloses a replaceable anticorrosion device for a bridge pier in a splash zone. The replaceable anticorrosion device comprises an inner anticorrosion coating, an inner reverse osmosis membrane, a supporting steel sheet, an outer anticorrosion coating and an outer reverse osmosis membrane which are combined together tightly in sequence, and the replaceable anticorrosion device is arranged around the surface of the bridge pier in seawater in the splash zone in a laminating manner. The replaceable anticorrosion device is composed of the anticorrosion coatings, the reverse osmosis membranes and the supporting steel sheet, the reverse osmosis membranes can selectively filter electrolytic ions with corrosive effect in the seawater, and intrusion of air, moisture and chloride ions in the splash zone is blocked effectively, so that the surface of the bridge pier in the splash zone is protected, and corrosion resistance is improved; meanwhile, the steel sheet is used as a support, so that a certain protection effect can be provided for the bridge pier by the aid of the steel sheet. Besides, since the reverse osmosis membranes and the steel sheet can be all prefabricated in factories, the defects of thickness unevenness and lack of density in pure anticorrosion coating brushing construction adopted in the past can be overcome.
Description
Technical field
The invention belongs to bridge structure design and building technology field, particularly relate to a kind of Lang Jian district replaceable anticorrosion device for bridge pier.
Background technology
Relate in the facility of briny environment at bridge spanning the sea or other, the durability how improving these facility reinforced concrete structures is all the focus that people pay close attention to all the time.The anti-corrosion measure taked for these facilities at present mainly contains raising concrete performance, surface of concrete structure is carried out to coating process, adopts stainless steel rebar or adopt cathodic protection etc.But the shortcoming of wherein some measure existence is that test is complicated, operation is loaded down with trivial details, and some measure is then that antiseptic effect is not good, and effective time is short.
The structural element be in briny environment easily suffers damage, because be rich in chlorion in seawater, after chlorion enters concrete from the micro gap of concrete surface, just destroy the stable passivating film of rebar surface, cause the pH value rapid drawdown of rebar surface and form larger potential difference.And if be in the environment of this alternation of wetting and drying all the year round in Lang Jian district, air, moisture and enough chlorions can make rebar surface generation electrochemical reaction, so reinforcing bar just starts corrosion.If a large amount of invasions of chlorion or air, moisture can be completely cut off, good effect should be able to be obtained concerning the structural anticorrosion be in this dry wet alternating environment in Lang Jian district.
Counter-infiltration, also known as reverse osmosis, be a kind of is motive force with pressure differential, isolates the UF membrane operating technology of solvent from solution.Apply pressure to the feed liquid of film side, when pressure exceedes its osmotic pressure, solvent can make inverse osmosis against the direction of naturally osmotic, thus the low-pressure side of film obtain through solvent, i.e. penetrating fluid, and obtain the solution that concentrates in high-pressure side, i.e. concentrate.If with reverse osmosis technology process seawater, fresh water can be obtained in the low-pressure side of film, obtain bittern in high-pressure side.Counter-infiltration material uses anisotropic membrane and composite membrane usually, equipment mainly hollow fiber form or the rolled film separation equipment that counter-infiltration is used.Various inorganic ions in reverse osmosis membrane energy trap water, colloidal substance and large molecule solute, thus obtain the water of clean system.Also can be used for the pre-concentration of larger molecular organics solution.Because reverse osmosis process is simple, energy consumption is low, therefore obtain over nearly 20 years and develop rapidly, now large-scale application is softened and wastewater treatment in seawater and bitter (bittern) desalination, boiler feed water, and with ion-exchange in conjunction with high purity water, and its range of application expands at present, start the isolation and identification aspect that is concentrated and biochemical and biologic product for dairy products, fruit juice.But still belong to blank in the application of bridge pier corrosion-resistant field.
Summary of the invention
In order to solve the problem, the object of the present invention is to provide a kind of Lang Jian district replaceable anticorrosion device for bridge pier of successful.
In order to achieve the above object, Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier is made up of the anticorrosive paint internal layer be closely linked successively, internal layer reverse osmosis membrane, support steel sheet floor, anticorrosive paint skin and outer reverse osmosis membrane, in the mode of fitting around being arranged on the bridge pier surface be in Lang Jian district seawater.
The upper and lower end parts of described support steel sheet layer is wedge shape grading structure, to prevent because of seawater, at this position, accumulation too much causes premature deterioration, and upper and lower end parts should be connected with bridge pier intimate surface, the connection of above-mentioned all interlayers simultaneously adopts adhesive means, to ensure the seal of this device.
The thickness of described internal layer reverse osmosis membrane is 40mm, the thickness supporting steel sheet layer is 10mm-15mm, and the thickness of outer reverse osmosis membrane is 40mm.
Described anticorrosive paint is anticorrosive paint under water.
Described gluing material is that epoxy type water-borne glue sticks agent.
Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier is made up of anticorrosive paint floor, reverse osmosis membrane and support steel sheet floor; wherein there is in the selective filtering seawater of reverse osmosis membrane energy the electrolytic ion of corrosiveness; the invasion of effective stop Lang Jian district air, moisture and chlorion; thus protection is arranged in the bridge pier surface of Lang Jian district seawater; improve its antiseptic property; adopt steel sheet as support simultaneously, but also steel sheet can be utilized to provide certain protective effect to bridge pier.In addition, also to can be applicable to the entirety of bridge pier anticorrosion for this device.In addition, because reverse osmosis membrane and steel sheet all can be prefabricated in the factory, therefore, it is possible to make up the variable thickness occurred in the simple brushing anticorrosive paint construction adopted before, closely knit inadequate shortcoming, and easy construction, be easy to change and cost is low.
Accompanying drawing explanation
Fig. 1 is Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier using state generalized section.
Description of reference numerals:
1-anticorrosive paint internal layer 2-internal layer reverse osmosis membrane
It is outer that 3-supports steel sheet layer 4-anticorrosive paint
5 outer reverse osmosis membranes
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier is described in detail.
As shown in Figure 1, Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier is made up of the anticorrosive paint internal layer 1 be closely linked successively, internal layer reverse osmosis membrane 2, support steel sheet floor 3, anticorrosive paint outer 4 and outer reverse osmosis membrane 5, in the mode of fitting around being arranged on bridge pier 6 surface be in Lang Jian district seawater.
The upper and lower end parts of described support steel sheet layer 3 is wedge shape grading structure, to prevent because of seawater, at this position, accumulation too much causes premature deterioration, and upper and lower end parts should be connected with bridge pier 6 intimate surface, the connection of above-mentioned all interlayers simultaneously adopts adhesive means, to ensure the seal of this device.
The thickness of described internal layer reverse osmosis membrane 2 is 40mm, the thickness supporting steel sheet layer 3 is 10mm-15mm, and the thickness of outer reverse osmosis membrane 5 is 40mm.
Described anticorrosive paint is anticorrosive paint under water.
Described gluing material is that epoxy type water-borne glue sticks agent.
Now Lang Jian district provided by the invention replaceable anticorrosion device for bridge pier construction method of installation is described below:
1, according to weather forecast, select install when fine and seawater water level at low ebb or dry season or change this anti-corrosive apparatus;
2, first cleared up the surface of bridge pier 6 by staff, make it substantially reach surface smooth-going, be beneficial to the installation of this device;
3, on bridge pier 6, be in annular surface brushing one deck anticorrosive paint under water in Lang Jian district, anticorrosive paint internal layer 1 is formed when this coating reaches suitable mass dryness fraction, then smear one deck epoxy type water-borne glue at the external surface of anticorrosive paint internal layer 1 and stick agent, paste the internal layer reverse osmosis membrane 2 that upper 40mm is thick afterwards;
4, stick agent at external coating one deck epoxy type water-borne glue of internal layer reverse osmosis membrane 2, paste the steel sheet that upper 10mm-15mm is thick afterwards, between adjacent steel sheet, adopt welding manner to connect, make thus and support steel sheet layer 3;
5, at the external coating one deck anticorrosive paint under water supporting steel sheet layer 3, anticorrosive paint skin 4 is formed when this coating reaches suitable mass dryness fraction, on anticorrosive paint skin 4, brushing one deck epoxy type water-borne glue sticks agent again, finally pastes upper outer reverse osmosis membrane 5 and can complete whole work progress.
In addition, in above-mentioned construction, require do not have gap between adjacent structure and between this device and bridge pier, internal layer reverse osmosis membrane 2 and outer reverse osmosis membrane 5 all adopt cementing sealing.
Claims (5)
1. a Zhong Langjian district replaceable anticorrosion device for bridge pier, it is characterized in that: described replaceable anticorrosion device is made up of the anticorrosive paint internal layer (1) be closely linked successively, internal layer reverse osmosis membrane (2), support steel sheet layer (3), anticorrosive paint skin (4) and outer reverse osmosis membrane (5), in the mode of fitting around being arranged on bridge pier (6) surface be in Lang Jian district seawater.
2. replaceable anticorrosion device according to claim 1, it is characterized in that: the upper and lower end parts of described support steel sheet layer (3) is wedge shape grading structure, and upper and lower end parts is connected with bridge pier (6) intimate surface, the connection of above-mentioned all interlayers simultaneously adopts adhesive means.
3. replaceable anticorrosion device according to claim 1, it is characterized in that: the thickness of described internal layer reverse osmosis membrane (2) is 40mm, the thickness supporting steel sheet layer (3) is 10mm-15mm, and the thickness of outer reverse osmosis membrane (5) is 40mm.
4. replaceable anticorrosion device according to claim 1, is characterized in that: described anticorrosive paint is anticorrosive paint under water.
5. replaceable anticorrosion device according to claim 2, is characterized in that: described gluing material is that epoxy type water-borne glue sticks agent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275189.0A CN103321146B (en) | 2013-07-03 | 2013-07-03 | Replaceable anticorrosion device for bridge pier in splash zone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310275189.0A CN103321146B (en) | 2013-07-03 | 2013-07-03 | Replaceable anticorrosion device for bridge pier in splash zone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103321146A CN103321146A (en) | 2013-09-25 |
| CN103321146B true CN103321146B (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310275189.0A Expired - Fee Related CN103321146B (en) | 2013-07-03 | 2013-07-03 | Replaceable anticorrosion device for bridge pier in splash zone |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087780A (en) * | 2016-08-08 | 2016-11-09 | 北京交通大学 | A kind of external application material improves the method for bridge pier durability |
| CN115341667A (en) * | 2022-07-18 | 2022-11-15 | 中冶检测认证有限公司 | Hinder chloride ion to corrode reinforced concrete protection device on reinforcing bar surface |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0157690B1 (en) * | 1995-02-11 | 1998-11-16 | 김효형 | Anticorrosion method for bridge |
| CN200978385Y (en) * | 2006-09-20 | 2007-11-21 | 山东省路桥集团有限公司 | Epoxy asphalt concrete steel bridge floor |
| CN201254693Y (en) * | 2008-07-11 | 2009-06-10 | 中铁二院工程集团有限责任公司 | Guarding system for railway steel bridge deck |
| CN102433057A (en) * | 2011-09-01 | 2012-05-02 | 中科院广州化学有限公司 | Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof |
| CN103061252A (en) * | 2012-12-28 | 2013-04-24 | 张庆彬 | Anti-corrosion material for piers of sea-crossing bridge |
-
2013
- 2013-07-03 CN CN201310275189.0A patent/CN103321146B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR0157690B1 (en) * | 1995-02-11 | 1998-11-16 | 김효형 | Anticorrosion method for bridge |
| CN200978385Y (en) * | 2006-09-20 | 2007-11-21 | 山东省路桥集团有限公司 | Epoxy asphalt concrete steel bridge floor |
| CN201254693Y (en) * | 2008-07-11 | 2009-06-10 | 中铁二院工程集团有限责任公司 | Guarding system for railway steel bridge deck |
| CN102433057A (en) * | 2011-09-01 | 2012-05-02 | 中科院广州化学有限公司 | Two-component high-penetrability epoxy resin waterproof reinforcing coating, and preparation method and application thereof |
| CN103061252A (en) * | 2012-12-28 | 2013-04-24 | 张庆彬 | Anti-corrosion material for piers of sea-crossing bridge |
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| CN103321146A (en) | 2013-09-25 |
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