CN106120575A - A kind of external application material improves the method for bridge sealing off and covering anchorage district durability - Google Patents
A kind of external application material improves the method for bridge sealing off and covering anchorage district durability Download PDFInfo
- Publication number
- CN106120575A CN106120575A CN201610642605.XA CN201610642605A CN106120575A CN 106120575 A CN106120575 A CN 106120575A CN 201610642605 A CN201610642605 A CN 201610642605A CN 106120575 A CN106120575 A CN 106120575A
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- China
- Prior art keywords
- sealing
- external application
- covering anchorage
- application material
- district
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- 239000000463 material Substances 0.000 title claims abstract description 109
- 238000007789 sealing Methods 0.000 title claims abstract description 91
- 238000000034 method Methods 0.000 title claims abstract description 21
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 55
- 239000010959 steel Substances 0.000 claims abstract description 55
- 239000004567 concrete Substances 0.000 claims abstract description 30
- 239000011150 reinforced concrete Substances 0.000 claims abstract description 22
- 239000010426 asphalt Substances 0.000 claims abstract description 10
- 239000013536 elastomeric material Substances 0.000 claims abstract description 6
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract description 3
- 230000003014 reinforcing effect Effects 0.000 abstract description 3
- 230000007812 deficiency Effects 0.000 abstract description 2
- -1 surface Substances 0.000 abstract description 2
- 230000007797 corrosion Effects 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229920000297 Rayon Polymers 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 235000014121 butter Nutrition 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 230000010412 perfusion Effects 0.000 description 2
- 239000012173 sealing wax Substances 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000011083 cement mortar Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a kind of method that external application material improves bridge sealing off and covering anchorage district durability, be applied to beams of concrete, girder steel, the reinforcing of steel reinforced concrete combination beam sealing off and covering anchorage district durability.The method of this raising bridge sealing off and covering anchorage district durability, by being affixed on beams of concrete, girder steel, surface, steel reinforced concrete combination beam sealing off and covering anchorage district outside external application material, prevents the generation of sealing off and covering anchorage district endurance issues, makes up the deficiency of present stage sealing off and covering anchorage district endurance issues prophylactico-therapeutic measures.Utilize that be made with material contracting with heat or elastomeric material or asphalt material for main material, antiseepage, easy construction, the material that is prone to processing, strange land workability good that bridge sealing off and covering anchorage district is protected; can be good at preventing and treating the problems such as the bridge sealing off and covering anchorage district anchor head burn into anchor lower prestress wire bundles rust that causes due to ice and snow, rainwater, corrosive medium etc., improve the durability in bridge sealing off and covering anchorage district.
Description
Technical field
This patent relates to a kind of method that external application material improves bridge sealing off and covering anchorage district durability, is applied to beams of concrete, steel
Beam, the reinforcing of steel reinforced concrete combination beam sealing off and covering anchorage district durability, specifically, it is simply that beams of concrete, girder steel, steel will be affixed on outside external application material
Surface, mixed combination beam sealing off and covering anchorage district, it is to avoid it directly contacts with ice and snow, rainwater, corrosive medium etc., improves the durability in sealing off and covering anchorage district, belongs to
In technical field of bridge engineering.
Background technology
At present, in the construction of prestressed structure, more employing post stretching prestressed reinforcement of tensioning.Either concrete
Beam, girder steel or steel reinforced concrete combination beam, prestressed strand is required for anchoring at beam-ends.In beams of concrete, due to cement
Mortar sealing off and covering anchorage, adds the leakiness of concrete itself, and rainwater, ice and snow, corrosive medium etc. penetrate into sealing off and covering anchorage district, easily cause anchorage
Corrosion and the corrosion of anchor lower prestress steel bundle;In girder steel, prestressing force generally applies in the way of external prestressing, at beam-ends
Anchored by anchor block or anchor plate.Steel bundle and anchor head are exposed in the middle of air, it is difficult to carry out permanently effective protection, more
Easily there is corrosion and the corrosion of anchor lower prestress steel bundle of anchor head;Steel reinforced concrete combination beam then combines beams of concrete and girder steel sealing off and covering anchorage district
Existing problem, the endurance issues in sealing off and covering anchorage district is the most prominent.
Consulting existing document to understand, the major measure of present stage bridge sealing off and covering anchorage district durability protection includes: at bridge sealing off and covering anchorage
District's surface spraying coating, in sealing off and covering anchorage district brushing antirust paint, anchor head irrigate butter or oiliness sealing wax etc..Coating is exposed to air
In, being affected by various factors, durability is very poor;Brushing antirust paint can lose protective effect because of the peeling of concrete;In anchor head
The perfusion material such as butter or oiliness sealing wax adds workload, it is difficult to guaranteeing the density of perfusion, this is the most to a certain extent
Cause the endurance issues in bridge sealing off and covering anchorage district.In view of this, inventor, according to theory analysis and practical experience, goes out from economy
Send out, carry out studying, developing, finally produce this patent.
Summary of the invention
This patent is to be solved be technical problem is that: provide a kind of external application material to improve the side of bridge sealing off and covering anchorage district durability
Method, by being affixed on beams of concrete, girder steel, surface, steel reinforced concrete combination beam sealing off and covering anchorage district outside external application material, prevents and treats because of ice dissolution, rainwater
The anchor head burn into anchor lower prestress wire bundles rust etc. that infiltration, corrosive medium etc. cause affects the problem of sealing off and covering anchorage district durability, makes up
The deficiency of present stage sealing off and covering anchorage district endurance issues prophylactico-therapeutic measures.
This patent solves its technical problem and be the technical scheme is that
A kind of external application material improves the method for bridge sealing off and covering anchorage district durability, including beams of concrete 1-1, girder steel 2-1, steel reinforced concrete
Combination beam 3-1, external application material 1-2, external application material 2-2, external application material 3-2;It is characterized in that: be affixed on outside external application material 1-2
Surface, beams of concrete 1-1 sealing off and covering anchorage district;Or with being affixed on surface, girder steel 2-1 sealing off and covering anchorage district outside external application material 2-2;Or with external application material 3-2
It is affixed on outward surface, steel reinforced concrete combination beam 3-1 sealing off and covering anchorage district;Bridge sealing off and covering anchorage district and ice and snow, rainwater, corrosive medium is avoided by above measure
Deng directly contact, reach to improve the purpose of bridge sealing off and covering anchorage district durability.
Described a kind of external application material improves the method for bridge sealing off and covering anchorage district durability, it is characterised in that: external application material 1-2
Can be the rectangular thin plate processed by material contracting with heat or elastomeric material or asphalt material, the thickness D of external application material 1-21=
5mm~40mm, length H1=0.2m~10m, width B1=0.2m~10m;External application material 2-2 can be by material contracting with heat or rubber
The rectangular thin plate that glue material or asphalt material process, the thickness D of external application material 2-22=5mm~40mm, length H2=0.2m
~10m, width B2=0.2m~10m;External application material 3-2 can be by material contracting with heat or elastomeric material or asphalt material processing
The rectangular thin plate become, the thickness D of external application material 3-23=5mm~40mm, length H3=0.2m~10m, width B3=0.2m~
10m。
The advantage of this patent is: due to this patent have employed this kind of antiseepage of external application material, easy construction, be prone to processing, different
Bridge sealing off and covering anchorage district is protected by the ground good material of workability, it is possible to well prevents and treats ice and snow, rainwater, corrosive medium etc. and makes
The problems such as the bridge sealing off and covering anchorage district anchor head burn into anchor lower prestress wire bundles rust become, improve the durability in bridge sealing off and covering anchorage district.
Accompanying drawing explanation
The external application material external application schematic diagram in Fig. 1 beams of concrete sealing off and covering anchorage district
The external application material plane figure in Fig. 2 beams of concrete sealing off and covering anchorage district
The external application material side figure in Fig. 3 beams of concrete sealing off and covering anchorage district
The external application material external application schematic diagram in Fig. 4 girder steel sealing off and covering anchorage district
The external application material plane figure in Fig. 5 girder steel sealing off and covering anchorage district
The external application material side figure in Fig. 6 girder steel sealing off and covering anchorage district
The external application material external application schematic diagram in Fig. 7 steel reinforced concrete combination beam sealing off and covering anchorage district
The external application material plane figure in Fig. 8 steel reinforced concrete combination beam sealing off and covering anchorage district
The external application material side figure in Fig. 9 steel reinforced concrete combination beam sealing off and covering anchorage district
In figure: 1-1-beams of concrete;1-2-external application material;1-3-prestressed strand anchorage point;2-1-girder steel;Outside 2-2-
Patch material;2-3-prestressed strand anchorage point;3-1-steel reinforced concrete combination beam;3-2-external application material;3-3-prestressed strand anchors
Position.
Detailed description of the invention
Embodiment one
One span is the concrete box girder of 32m, and during completing for use, sealing off and covering anchorage district is due to ice and snow, rainwater, corrosive medium
Deng infiltration, the phenomenons such as anchor head burn into anchor lower prestress wire bundles rust occur.Application one external application material improves bridge sealing off and covering anchorage
Beams of concrete sealing off and covering anchorage district is protected, as shown in Figure 1 by the method for district's durability.It is embodied as step:
Step 1 selects thickness to be 15mm according to the size in beams of concrete 1-1 sealing off and covering anchorage district, a length of 1.5m, width are
The external application material 1-2 of 0.3m.External application material 1-2 is to be the flexible rectangular thin plate that main material processes by asphalt material, always
Count 3 pieces, as shown in Figure 2 and Figure 3.
Cleared up, polish in surface, beams of concrete 1-1 sealing off and covering anchorage district by step 2, it is ensured that surface, beams of concrete 1-1 sealing off and covering anchorage district is put down
Whole, clean, it is beneficial to the stickup of external application material 1-2.
Step 3 as base treatment agent, then uses flame to add at beams of concrete 1-1 sealing off and covering anchorage district external coating adhesive bitument primer
Hot device, by the way of hot melt, will be affixed on outside external application material 1-2 on surface, beams of concrete 1-1 sealing off and covering anchorage district successively.
External application material 1-2 seam crossing is checked and processes by step 4, it is ensured that between external application material 1-2, external application material 1-
It is completely embedded, firmly between 2 and beams of concrete 1-1 sealing off and covering anchorage district.
Pass through above step so that external application material is tightly outer is affixed on beams of concrete sealing off and covering anchorage district outer surface, ice and snow, rainwater, corruption
Erosion medium etc. directly cannot contact with beams of concrete sealing off and covering anchorage district, thus improves the durability in beams of concrete sealing off and covering anchorage district.
Embodiment two
Certain girder steel prestressing force arranges the cloth bundle mode using external pre-stress bundle, carries out the anchoring of steel bundle in girder steel end.
Anchor head and anchor lower prestress steel bundle can be had a negative impact by ice and snow, rainwater, corrosive medium etc., cause under anchor head burn into anchor pre-
Stress wire bundles rust.Girder steel sealing off and covering anchorage district is protected by a kind of method applying external application material to improve bridge sealing off and covering anchorage district durability
Protect, as shown in Figure 4.It is embodied as step:
Step 1 selects thickness to be 12mm according to the size of girder steel 2-1 anchorage zone, a length of 2m, width are 0.3m's
External application material 2-2.External application material 2-2 is the flexible rectangular thin plate processed for main material with asphalt material, one side with
Self-adhesion sizing material, amounts to 2 pieces, as shown in Figure 5, Figure 6.
Surface, girder steel 2-1 sealing off and covering anchorage district is cleared up and polishes by step 2, it is ensured that girder steel 2-1 sealing off and covering anchorage district dry tack free, whole
Clean, it is beneficial to the stickup of external application material 2-2.
Step 3 tear off external application material 2-2 with from viscose material one side sealing coat, girder steel will be affixed on outside external application material 2-2
On surface, 2-1 sealing off and covering anchorage district.
External application material 2-2 seam crossing is checked and processes by sealing compound by step 4, it is ensured that external application material 2-2 it
Between, be completely embedded, firmly between external application material 2-2 and girder steel 2-1 sealing off and covering anchorage district.
Pass through above step so that external application material is tightly outer to be affixed on surface, beams of concrete sealing off and covering anchorage district, ice and snow, rainwater, corruption
Erosion medium etc. directly cannot contact with girder steel sealing off and covering anchorage district, be effectively guaranteed anchor head not by burn into anchor lower prestress reinforcing bar not by
Corrosion, thus improve the durability in girder steel sealing off and covering anchorage district.
Embodiment three
It is 40m steel reinforced concrete combination beam sealing off and covering anchorage end in a span, due to the invading from sealing off and covering anchorage district of ice and snow, rainwater, corrosive medium etc.
Enter, cause anchor head burn into anchor lower prestress wire bundles rust.A kind of external application material is applied to improve the side of bridge sealing off and covering anchorage district durability
Sealing off and covering anchorage district is protected by method, as shown in Figure 7.It is embodied as step:
Step 1 selects thickness to be 12mm according to the size of steel reinforced concrete combination beam 3-1 anchorage zone, a length of 2m, width are
The external application material 3-2 of 0.3m.External application material 3-2 is the flexible square processed for main material with asphalt material and elastomeric material
Shape thin plate, one side, with self-adhesion sizing material, amounts to 3 pieces, as shown in Figure 8, Figure 9.
Cleared up, polish in surface, steel reinforced concrete combination beam 3-1 sealing off and covering anchorage district by step 2, it is ensured that steel reinforced concrete combination beam 3-1 sealing off and covering anchorage district table
Face is dried, neatly, be beneficial to the stickup of external application material 3-2.
Step 3 tear off external application material 3-2 with from viscose material one side sealing coat, steel reinforced concrete will be affixed on outside external application material 3-2
On surface, combination beam 3-1 sealing off and covering anchorage district.
External application material 3-2 seam crossing is checked and processes by sealing compound by step 4, it is ensured that external application material 3-2 it
Between, be completely embedded, firmly between external application material 3-2 and steel reinforced concrete combination beam 3-1 sealing off and covering anchorage district.
Pass through above step so that external application material is tightly outer to be affixed on surface, steel reinforced concrete combination beam sealing off and covering anchorage district, ice and snow, rainwater,
Corrosive mediums etc. directly cannot contact with steel reinforced concrete combination beam sealing off and covering anchorage district, thus improves the durability in steel reinforced concrete combination beam sealing off and covering anchorage district.
Above-described specific implementation method, is illustrated purpose, technical scheme and the beneficial effect of this patent.Institute
It is emphasized that the foregoing is only specific implementation of the patent example, can not be used for limiting the scope of this patent.All
Within the spirit of this patent and principle, any amendment, equivalent or the improvement etc. made, should be included in the protection of this patent
Within the scope of.
In sum, this patent provides a kind of method that external application material improves bridge sealing off and covering anchorage district durability, it is achieved that
Protection and raising to bridge sealing off and covering anchorage district durability.This patent has novelty, practicality, meets patent requirements, therefore carries in accordance with the law
Go out patent application.
Claims (2)
1. the method improving bridge sealing off and covering anchorage district durability with external application material, including beams of concrete (1-1), girder steel (2-1), steel
Mixed combination beam (3-1), external application material (1-2), external application material (2-2), external application material (3-2);It is characterized in that: use external application material
(1-2) surface, beams of concrete (1-1) sealing off and covering anchorage district it is affixed on outside;Or with being affixed on girder steel (2-1) sealing off and covering anchorage district table outside external application material (2-2)
Face;Or with being affixed on surface, steel reinforced concrete combination beam (3-1) sealing off and covering anchorage district outside external application material (3-2);Bridge sealing off and covering anchorage is avoided by above measure
District directly contacts with ice and snow, rainwater, corrosive medium etc., reaches to improve the purpose of bridge sealing off and covering anchorage district durability.
A kind of external application material the most according to claim 1 improves the method for bridge sealing off and covering anchorage district durability, it is characterised in that:
External application material (1-2) can be the rectangular thin plate processed by material contracting with heat or elastomeric material or asphalt material, external application material
(1-2) thickness D1=5mm~40mm, length H1=0.2m~10m, width B1=0.2m~10m;External application material (2-2) is permissible
It is the rectangular thin plate processed by material contracting with heat or elastomeric material or asphalt material, the thickness D of external application material (2-2)2=5mm
~40mm, length H2=0.2m~10m, width B2=0.2m~10m;External application material (3-2) can be by material contracting with heat or rubber
The rectangular thin plate that material or asphalt material process, the thickness D of external application material (3-2)3=5mm~40mm, length H3=0.2m
~10m, width B3=0.2m~10m.
Priority Applications (1)
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CN201610642605.XA CN106120575A (en) | 2016-08-08 | 2016-08-08 | A kind of external application material improves the method for bridge sealing off and covering anchorage district durability |
Applications Claiming Priority (1)
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CN201610642605.XA CN106120575A (en) | 2016-08-08 | 2016-08-08 | A kind of external application material improves the method for bridge sealing off and covering anchorage district durability |
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Publication Number | Publication Date |
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CN106120575A true CN106120575A (en) | 2016-11-16 |
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CN201610642605.XA Pending CN106120575A (en) | 2016-08-08 | 2016-08-08 | A kind of external application material improves the method for bridge sealing off and covering anchorage district durability |
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CN (1) | CN106120575A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111335165A (en) * | 2020-03-04 | 2020-06-26 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05132964A (en) * | 1991-07-17 | 1993-05-28 | Kobe Steel Ltd | Anti-corrosive treatment of marine concrete construction |
DE10201800A1 (en) * | 2002-01-17 | 2003-08-14 | Helmut Oetinger | Renovation method for concrete drain or sewer using corrosion resistant coating, comprises fixing anchors in concrete surface before applying coating material |
CN203393616U (en) * | 2013-08-07 | 2014-01-15 | 中铁十三局集团第五工程有限公司 | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam |
-
2016
- 2016-08-08 CN CN201610642605.XA patent/CN106120575A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH05132964A (en) * | 1991-07-17 | 1993-05-28 | Kobe Steel Ltd | Anti-corrosive treatment of marine concrete construction |
DE10201800A1 (en) * | 2002-01-17 | 2003-08-14 | Helmut Oetinger | Renovation method for concrete drain or sewer using corrosion resistant coating, comprises fixing anchors in concrete surface before applying coating material |
CN203393616U (en) * | 2013-08-07 | 2014-01-15 | 中铁十三局集团第五工程有限公司 | Shrinkage-free cement mortar sealing anchor head applied to water conservancy box beam |
Non-Patent Citations (1)
Title |
---|
牛斌: "铁路混凝土梁的体外预应力加固", 铁道建筑, pages 7 - 11 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111335165A (en) * | 2020-03-04 | 2020-06-26 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
CN111335165B (en) * | 2020-03-04 | 2021-11-16 | 中铁第四勘察设计院集团有限公司 | Construction method for sealing anchor and auxiliary anchor sealing structure thereof |
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