CN208219412U - A kind of main rope of suspension bridge cladding sealing protection composite construction - Google Patents

A kind of main rope of suspension bridge cladding sealing protection composite construction Download PDF

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Publication number
CN208219412U
CN208219412U CN201820485035.2U CN201820485035U CN208219412U CN 208219412 U CN208219412 U CN 208219412U CN 201820485035 U CN201820485035 U CN 201820485035U CN 208219412 U CN208219412 U CN 208219412U
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China
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thermal expansion
type sealant
sealant layer
wrapped
erosion type
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CN201820485035.2U
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安云岐
杜彬
李承宇
晁兵
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Shanghai Qihai Antiseptic Engineering Technology Co Ltd
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Shanghai Qihai Antiseptic Engineering Technology Co Ltd
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Abstract

A kind of main rope of suspension bridge cladding sealing protection composite construction, it from inside to outside successively include thermal expansion resistance erosion type sealant layer and the belt that is wrapped from cable surface, thermal expansion resistance erosion type sealant layer is connected to cable surface between the belt that is wrapped by blade coating mode, and the belt that is wrapped is combined as a whole by cladding hot melting way and thermal expansion resistance erosion type sealant layer.While the utility model can be improved sealing, filling and adhesive property between main push-towing rope surface and the band that is wrapped, also greatly improve the waterproof, anti-corrosion and durability of whole system, entire composite structural design is environmentally protective, efficiently durable, the service life of entire main push-towing rope is significantly improved, the later maintenance frequency and expense are reduced.

Description

A kind of main rope of suspension bridge cladding sealing protection composite construction
Technical field
The utility model relates to a kind of main rope of suspension bridge to coat sealing protection composite construction, belong to science of bridge building corrosion protection Technical field.
Background technique
Main push-towing rope is suspension bridge " lifeline ", is most important primary structure member, and existing main push-towing rope also has non-exchange property.Mesh There are two main classes for the sealing protection technology of preceding China's main rope of suspension bridge, first is that China traffic industry standard JT/T 694-2007 is " outstanding Cable bridge main push-towing rope system anticorrosive coating technical conditions " specified in coating material matching system;Second is that introducing or using for reference the U.S. The Cableguard of D.S.Brown companyTMPreventing rubber band coats sealing protection technology.
CableguardTMBuffer zone and the similar buffer zone product main material of domestic independent research are lateral connection Chlorosulfonated polyethylene polymer, is generally made of three-decker, and two sides are basic material, and centre is polyester fiber reinforcing network.Packet Covering sealing protection technical approach is flexible protective band to be wrapped on cable, then make flexible protective band by way of heating pressurization Gluing is on cable.It coats sealed protective structure and is made of four-layer structure: first layer is heavy anticorrosive zinc slurry, in steel wire table Face formation corrosion protective covering, 90 μm of thickness of dry film;The second layer, will be between steel wire to be greasy as the anticorrosion sealant of base using silicon class rubber Gap it is completely enclosed live;Third layer is winding steel wire.Winding steel wire clamps the parallel steel wire for forming main push-towing rope, keeps main push-towing rope It is closely knit;4th layer is winding belt.Buffer zone is wrapped on main push-towing rope, winding overlapping widths are the 50% of bandwidth, folded and position It is combined using hot melt.Complete cure, the installation that is wrapped, heating fuse anticorrosion belt after vulcanizing to buffer zone in process of production And shrink together, it is externally formed with closed anticorrosion set.
The buffer zone wound is heated twice, each 3min.Heating temperature, which is 138 DEG C, (should carry out examination to add when beginning Heat, verifies whether this temperature and heating time are well combined material, otherwise should suitably increase the time or improve temperature, but highest Temperature is no more than 150 DEG C).To guarantee that operation is continuous, every working face is carried out using two sets of heating muffs.It is existing to be wrapped using artificial Or winding and packing machine operates, the helical angle for being easy to cause flexible protective band to be wrapped in construction is unable to control, and flexible protective band is caused to overlap Slice width degree is inconsistent, and the stability for the quality that is wrapped is poor, and phenomena such as being easy to appear relaxation between mouth, falling off is overlapped after heating;In addition " S " shaped steel wire of main push-towing rope winding uses corrosion protective coating technology, and face joint gap, which relies primarily on, to be wrapped after band hot melt contraction Closing, it is difficult to guarantee sealing effect;Third is that being wrapped after hot melt, (Guo Chongyang " Cableguard is not adhered on main push-towing rope surface effectively to bandTM Cables rubber anti-corrosive band " " Shanxi transport science and techonologies " in December, 2003 supplementary issue 2), do not simply fail to effective sealing off gap so, And one can not be formed therebetween, cause corrosive medium easily to immerse, and rapidly along interface between the two, gap etc. to Entire main push-towing rope sprawling, that is, break through, be damaged comprehensively, cause very big hidden danger safely to the anti-corrosion of entire main push-towing rope, greatly reduce The protecting effect of entire main push-towing rope cladding sealed protective structure.In addition, the open coating paint in construction site, to engineering-environment and water Body etc. all causes obviously to damage.
Summary of the invention
In order to overcome existing above-mentioned deficiency, the utility model provides a kind of main rope of suspension bridge cladding sealing protection composite junction Structure, while sealing, filling and adhesive property between main push-towing rope surface and the band that is wrapped can be significantly improved, moreover it is possible to greatly improve entirely Waterproof, anti-corrosion and the durability of system, it is environmentally protective, efficiently durable, it is remarkably improved the service life of entire main push-towing rope, after reduction Phase maintenance frequency and expense.
The utility model solve its technical problem the technical solution adopted is that: from cable surface from inside to outside successively include heat Expansion resistance erosion type sealant layer and be wrapped belt, thermal expansion resistance erosion type sealant layer by blade coating mode be connected to cable surface with It is wrapped between belt, the belt that is wrapped is combined as a whole by cladding hot melt heating method and thermal expansion resistance erosion type sealant layer.
Compared with prior art, a kind of main rope of suspension bridge of the utility model coats sealing protection composite construction, eliminates master The antiseptic oil paint layer on cable wrapping surface, design use thermal expansion resistance erosion type sealant to seal existing wrapping surface, not only effectively seal Close related voids, gap and wrapping matrix be intimately associated to be formed electrochemistry one and effectively play itself resistance corrosion energy, also with twine Belting layer close adhesion prevents extraneous corrosive medium infiltration and sprawling;Hot melt heating can also be made full use of to realize the effective of each layer Connection, thermal expansion resistance erosion type sealant can complete cure and volume expansion, not only colloid itself mechanical property is obviously improved, also into One step enhances gap sealing and the two-way adhesive effect with wrapping, winding band, and it is multiple to significantly improve entire cladding sealing protection Close the sealing corrosion effect of structure.This compound protective coating structure is also environmentally protective while solving prior art problem;? While improving main cable protection service life, the later maintenance frequency can also be reduced, substantially save maintenance, maintenance cost.Entirely Design it is reasonable, environmentally protective, it is energy-efficient, have economic and social profit outstanding.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural schematic diagram of the utility model one embodiment.
Fig. 2 is the structural schematic diagram of another embodiment of the utility model.
In figure: 1,11, cable surface, 2,22, thermal expansion resistance erosion type sealant layer, 3,33, be wrapped belt, 44, weather-proof face Lacquer coat.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is a part of the embodiment of the utility model, instead of all the embodiments.Based on the reality in the utility model Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts all belongs to In the protection scope of the utility model.
In the embodiment shown in fig. 1, main rope of suspension bridge includes cable surface 1, and thermal expansion thereon hinders erosion type sealant layer 2 and outer surface the belt 3 that is wrapped.After main push-towing rope wrapping, after 1 cleaning treatment of cable surface, blade coating thermal expansion resistance erosion type sealing Glue forms thermal expansion resistance erosion type sealant layer 2, and be then wrapped on thermal expansion resistance erosion type sealant layer 2 band, by hot melt The belt 3 that is wrapped is formed afterwards.
In the present embodiment, thermal expansion resistance erosion type sealant layer 2 can the preferably slow vulcanization thermal expansion resistance of one pack system Erosion type sealant layer or bi-component thermal expansion resistance erosion type sealant layer, bondline thickness 0.2-1mm can be drunk according to construction site operating condition Sentiment is whole, but must assure that entire main push-towing rope surface uniformly applies and load onto one layer of glue-line.
The modified thermal expansion resistance erosion type sealant layer of the acceptable preferably MS of thermal expansion resistance erosion type sealant layer 2, glue-line thickness Spend 0.2-1mm.Existing silane modified polymer resin (the i.e. modified tree of MS can be used in the modified thermal expansion resistance erosion type sealant layer of MS Rouge, including silane modified polyether resin M S, silicane-modified polyurethane resin SPUR or silane-modified resin STP, such as commercially available day S303H, S203H of this clockization, the SPUR product of Mai Tu company of U.S. production and sales, the STP resin of the vertical safe production of Taizhou Rui Yang Product etc.) preparation, MS thermal expansion resistance erosion type sealant caking property it is good, can well with main push-towing rope covering material chlorosulfonated polyethylene And zinc-plated wrapping bonding, it is non-corrosive, sealing with it is Nian Jie reliable for a long time.
The resistance erosion type sealant layer 2 of thermal expansion used in the present embodiment is formed using thermal expansion resistance erosion type sealant coating, should Thermal expansion resistance erosion type sealant is that the weight for accounting for the resistance entire weight of erosion type sealant is added in existing resistance erosion type sealant product The intumescent hollow microsphere (such as Aksu-Expancel microballoon, the total hollow resin of Japan three) of the prior art of part 2-20% And its specification etc..It, specifically can be according to heat such as the product that microsphere expansion temperature selectively-expandable temperature range is 80-150 DEG C of range Glue-line heating degree determines when molten construction, it is generally preferable to the microspheres product of 80-100 DEG C of range.Thermal expansion resistance erosion type sealant Production can be prepared according to existing resistance erosion type sealant product processes (such as Chinese patent CN201010243670.8, CN201010243655.3;Technical papers such as " preparation and research of two-component silane modified polyether seal glue ", Wang Cuihua etc., 09 phase in 2014 " bonding " etc., using the prior art and its enlightenment, not needing creative work be can be completed), it should be noted that It is that microballoon raw material should control sealant temperature of charge below itself expansion temperature of selected micro-sphere material when being added, through dividing It dissipates and uniformly continues to be the preparation for completing thermal expansion resistance erosion type sealant product used in the present embodiment according to prior art operation.Root According to the slow vulcanization resistance erosion type sealant layer of existing one pack system or bi-component sealant technology, single group can equally be made according to the method described above Divide slow vulcanization thermal expansion resistance erosion type sealant or bi-component to thermally expand resistance erosion type sealant, is lost to obtain the thermal expansion and hinder Type sealant layer 2.
In another embodiment shown in Fig. 2, main rope of suspension bridge includes cable surface 11, and thermal expansion thereon hinders erosion type Sealant layer 22 and the belt 33 that is wrapped of outer surface.After main push-towing rope wrapping, after 11 cleaning treatment of cable surface, blade coating heat is swollen Swollen resistance erosion type sealant forms thermal expansion resistance erosion type sealant layer 22, then twines on thermal expansion resistance erosion type sealant layer 22 Band forms the belt 33 that is wrapped after hot melt, then in the weather-proof finishing coat of coating on belt 33 that is wrapped, can form weather-proof finishing coat Coating 44.
In this second embodiment, one embodiment is compared, it can be according to being wrapped 33 situation of belt and protection requirements exist Its 33 surface of belt increase, one layer of weather-proof topcoat 44 that be wrapped, 80-160 μm of coating layer thickness.Weather-proof topcoat 44 is preferably Aqueous weather-proof topcoat 44,60-80 μm of coating layer thickness.The material of thermal expansion resistance erosion type sealant layer 22 used in the present embodiment It selects and prepared as last embodiment.
The utility model eliminates the antiseptic oil paint layer on main push-towing rope wrapping surface, using cladding construction technology in heat-welding process, Design uses thermal expansion resistance erosion type sealant to seal existing wrapping surface, not only effectively closes related voids, gap and wrapping base Body is intimately associated to form electrochemistry one and effectively play itself resistance corrosion energy, also with 33 close adhesion of belt that is wrapped, prevents outer The infiltration of boundary's corrosive medium and sprawling, and hot melt is made full use of to heat, excitation thermal expansion resistance erosion type sealant itself complete cure And volume expansion, gap sealing and the two-way adhesive effect with wrapping, winding band are further increased, entire cladding is significantly improved The sealing corrosion effect of sealing protection composite construction is effectively protected main push-towing rope operational safety, for a long time and economical operation.
The above is only the preferred embodiment of the utility model, not does limit in any form to the utility model System, it is all according to the technical essence of the utility model, any simple modification and same variation are made to above embodiments, fallen Enter within the protection scope of the utility model.

Claims (6)

1. a kind of main rope of suspension bridge coats sealing protection composite construction, it is characterized in that: from cable surface (1,11) from inside to outside according to Secondary includes thermal expansion resistance erosion type sealant layer (2,22) and the belt that is wrapped (3,33), and thermal expansion resistance erosion type sealant layer (2,22) is logical It crosses blade coating mode to be connected to cable surface (1,11) and be wrapped between belt (3,33), the belt that is wrapped (3,33) passes through cladding hot melt Heating method is combined as a whole with thermal expansion resistance erosion type sealant layer (2,22).
2. a kind of main rope of suspension bridge according to claim 1 coats sealing protection composite construction, it is characterized in that: the heat Expansion resistance erosion type sealant layer (2,22) is the slow vulcanization thermal expansion resistance erosion type sealant layer of one pack system, bondline thickness 0.2-1mm.
3. a kind of main rope of suspension bridge according to claim 1 coats sealing protection composite construction, it is characterized in that: the heat Expansion resistance erosion type sealant layer (2,22) is bi-component thermal expansion resistance erosion type sealant layer, bondline thickness 0.2-1mm.
4. a kind of main rope of suspension bridge according to claim 1 coats sealing protection composite construction, it is characterized in that: the institute Stating thermal expansion resistance erosion type sealant layer (2,22) is the modified thermal expansion resistance erosion type sealant layer of MS, bondline thickness 0.2-1mm.
5. a kind of main rope of suspension bridge according to any one of claims 1 to 4 coats sealing protection composite construction, feature It is: on the surface of the belt that is wrapped (3,33) there are also one layer of weather-proof topcoat (44), 80-160 μm of coating layer thickness.
6. a kind of main rope of suspension bridge according to claim 5 coats sealing protection composite construction, it is characterized in that: described is resistance to Wait topcoat (44) be aqueous weather-proof topcoat, 60-80 μm of coating layer thickness.
CN201820485035.2U 2018-04-08 2018-04-08 A kind of main rope of suspension bridge cladding sealing protection composite construction Active CN208219412U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111305034A (en) * 2020-03-31 2020-06-19 广州珠江黄埔大桥建设有限公司 Heat-insulation fire-resistant protection structure for main cable of suspension bridge and construction method of heat-insulation fire-resistant protection structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111305034A (en) * 2020-03-31 2020-06-19 广州珠江黄埔大桥建设有限公司 Heat-insulation fire-resistant protection structure for main cable of suspension bridge and construction method of heat-insulation fire-resistant protection structure

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GR01 Patent grant
GR01 Patent grant
PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A composite structure for wrapping and sealing protection of main cable of suspension bridge

Effective date of registration: 20211124

Granted publication date: 20181211

Pledgee: Industrial Bank Co.,Ltd. Shanghai Hongkou sub branch

Pledgor: SHANGHAI QIHAI ANTI-CORROSION ENGINEERING TECHNOLOGY Co.,Ltd.

Registration number: Y2021980013286

PC01 Cancellation of the registration of the contract for pledge of patent right
PC01 Cancellation of the registration of the contract for pledge of patent right

Date of cancellation: 20231117

Granted publication date: 20181211

Pledgee: Industrial Bank Co.,Ltd. Shanghai Hongkou sub branch

Pledgor: SHANGHAI QIHAI ANTI-CORROSION ENGINEERING TECHNOLOGY Co.,Ltd.

Registration number: Y2021980013286

PE01 Entry into force of the registration of the contract for pledge of patent right
PE01 Entry into force of the registration of the contract for pledge of patent right

Denomination of utility model: A composite structure for wrapping, sealing and protecting the main cable of a suspension bridge

Effective date of registration: 20231122

Granted publication date: 20181211

Pledgee: Industrial Bank Co.,Ltd. Shanghai Hongkou sub branch

Pledgor: SHANGHAI QIHAI ANTI-CORROSION ENGINEERING TECHNOLOGY Co.,Ltd.

Registration number: Y2023310000760