CN113605233B - Fireproof and antiriot bridge steel cable protection system - Google Patents
Fireproof and antiriot bridge steel cable protection system Download PDFInfo
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- CN113605233B CN113605233B CN202111013695.3A CN202111013695A CN113605233B CN 113605233 B CN113605233 B CN 113605233B CN 202111013695 A CN202111013695 A CN 202111013695A CN 113605233 B CN113605233 B CN 113605233B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/16—Suspension cables; Cable clamps for suspension cables ; Pre- or post-stressed cables
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D11/00—Suspension or cable-stayed bridges
- E01D11/04—Cable-stayed bridges
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- Structural Engineering (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The invention discloses a fireproof and antiriot bridge steel cable protection system, which comprises a stay cable and a protective fireproof layer on the outer side of the stay cable; the number of the hoops is multiple, and the hoops are fastened on the outer side of the protective fireproof layer at uniform intervals along the length direction of the inhaul cable; the circumferential top edge and the circumferential bottom edge of the hoop are connected with a plurality of elastic pieces at intervals; the outer protective layer comprises a plurality of sections of outer sealing sleeves sleeved on the outer side of the protective fireproof layer; the outer sealing sleeve comprises two semicircular pipes, and after the two semicircular pipes are fixedly butted, two ends of each semicircular pipe are fixedly connected with the elastic pieces on the two adjacent hoops respectively. According to the invention, the hoop is used for fastening the protective fireproof layer, so that the stability of the protective fireproof layer is improved, the hoop is directly connected with the outer protective layer through the elastic piece, the construction is convenient, the outer protective layer has an excellent vibration effect, the external violent impact force can be buffered and released, and the impact resistance is improved.
Description
Technical Field
The invention relates to the technical field of cable-stayed bridge cable fire prevention and fire control, in particular to a fireproof and anti-riot bridge cable protection system.
Background
China builds large cable-suspended structure bridges from the last 90 s, the operation is carried out in the time of nearly 30 years, the incidence rate of accidents and disasters in the bridge construction period and the operation period is increased, and immeasurable loss is caused to the society. Along with the development of economic society of China, the traffic flow of bridges is increased, vehicles for transporting flammable and combustible articles on the bridges are also increased continuously, so that the burning and firing events of the vehicles are more and more, and the fireproof problem of the bridges is gradually emphasized. For a cable system bridge, a cable is a main bearing component of the bridge, once the cable is damaged in a fire disaster, the traffic is blocked, huge economic loss is caused, and meanwhile, the safety of the bridge is greatly threatened. At present, part of the cable system bridge encounters fire disasters of different degrees during operation, which causes certain loss.
In order to overcome the problem and improve the fireproof performance of the cable-stayed bridge cable, in the prior art, the surface of the cable is firstly wound with a fireproof layer, basalt fiber cloth strips with the thickness of 3-5 mm are spirally wound on the surface of the cable, then a sealing layer is bonded on the outer layer of the fireproof layer formed by winding, and the sealing layer is directly wrapped on site by basalt mesh cloth through a four-glue three-cloth processing technology.
However, although the conventional fire-retardant layer can provide a fire-retardant effect, many fire accidents are caused by an impact. Vehicle impacts destroy the outer fire-resistant layer first and then further burn the fire-resistant layer.
Therefore, it is an urgent need to solve the problem of the art to provide a bridge steel cable protection system with good anti-collision effect and capable of further improving the fireproof effect.
Disclosure of Invention
In view of the above, the present invention provides a fireproof and antiriot bridge steel cable protection system, which aims to solve the above technical problems.
In order to achieve the purpose, the invention adopts the following technical scheme:
a fireproof and antiriot bridge steel cable protection system comprises a stay cable and a protection fireproof layer on the outer side of the stay cable; further comprising:
hooping; the number of the hoops is multiple, and the hoops are fastened on the outer side of the protective fireproof layer at uniform intervals along the length direction of the inhaul cable; the circumferential top edge and the circumferential bottom edge of the hoop are connected with a plurality of elastic pieces at intervals;
an outer protective layer; the outer protective layer comprises a plurality of sections of outer sealing sleeves sleeved on the outer side of the protective fireproof layer; the outer sealing sleeve comprises two semicircular pipes, and after the two semicircular pipes are fixedly butted, two ends of each semicircular pipe are fixedly connected with the elastic pieces on the two adjacent hoops respectively.
Through the technical scheme, the hoop is used for fastening the protective fireproof layer, the stability of the protective fireproof layer is improved, the hoop is directly connected with the outer protective layer through the elastic piece, construction can be facilitated, the outer protective layer has a good vibration effect, external violent impact force can be buffered and released, and the impact resistance is improved.
The protection and fire prevention layer comprises an HDPE protection sleeve wrapped on the outer side of the inhaul cable; two layers of basalt fiber cloth strips spirally wound on the outer side of the HDPE protective sleeve, wherein the winding directions of the two layers of basalt fiber cloth strips are opposite; and the outer sides of the two layers of basalt fiber cloth strips are formed into sealing layers by basalt grid cloth through a four-rubber three-cloth processing technology.
Preferably, in the fireproof and antiriot bridge steel cable protection system, the anchor ear includes two semi-circular ring bodies; and one end of each of the two semi-circular ring bodies is hinged, and the other end of each of the two semi-circular ring bodies is butted through a notch and is fastened and connected through a bolt. Simple structure and convenient assembly.
Preferably, in the above fireproof and antiriot bridge steel cable protection system, the inner wall of the semi-circular ring body is provided with an elastic fluororubber pad. Can effectively improve the fastening effect of staple bolt, and can improve fire behavior.
Preferably, in the fireproof and explosion-proof bridge steel cable protection system, the butt joint seam of the two semicircular ring bodies and the butt joint seam of the two semicircular pipes are arranged in a cross manner. The staggered arrangement can improve structural stability.
Preferably, in the fireproof and antiriot bridge steel cable protection system, the top surface edge and the bottom surface edge of the semicircular ring body are both provided with mounting grooves for mounting the elastic pieces; the mounting grooves formed in the edge of the top surface of the semi-circular ring body and the mounting grooves formed in the edge of the bottom surface of the semi-circular ring body are arranged in a staggered mode. The vertical staggered arrangement can save space and ensure the stability of the connecting structure.
Preferably, in the above fireproof and explosion-proof bridge steel cable protection system, the elastic member is a tension spring; one end of the tension spring is fixed with the bottom surface of the mounting groove, and the other end of the tension spring is welded and fixed with the end of the semicircular pipe. The connection is simple and stable, the use effect is good, and the replacement is convenient.
Preferably, in the fireproof and explosion-proof bridge steel cable protection system, the edges of the two semicircular pipes are clamped and fixed through clamping heads and clamping grooves. The butt joint of the semicircular pipes can be realized quickly.
Preferably, in the fireproof and antiriot bridge steel cable protection system, a plurality of basalt mesh fabric layers are bonded to the inner wall of the semicircular pipe. The fire protection effect can be further improved.
Preferably, in the fireproof and explosion-proof bridge steel cable protection system, a gap between the inner wall of the semicircular pipe and the protective fireproof layer is filled with fireproof cotton. The fireproof effect can be further improved, and the elastic buffering effect can be improved.
Preferably, in the above fireproof and antiriot bridge steel cable protection system, the semicircular pipe is a flame-retardant plastic pipe. The structure is light, and can satisfy sealed, fire prevention and crashproof function, and easily make.
Compared with the prior art, the invention discloses a fireproof and antiriot bridge steel cable protection system, which has the following beneficial effects:
1. according to the invention, the hoop is used for fastening the protective fireproof layer, so that the stability of the protective fireproof layer is improved, the hoop is directly connected with the outer protective layer through the elastic piece, the construction is convenient, the outer protective layer has an excellent vibration effect, the external impact force can be buffered and released, and the impact resistance is improved.
2. The outer protective layer has good impact resistance, and even if the outer protective layer is damaged, the inner protective fireproof layer still has good fireproof sealing effect and cannot lose efficacy.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a steel cable protection system for a bridge to prevent damage from impact according to the present invention;
FIG. 2 is a schematic structural view of a semi-torus according to the present invention;
FIG. 3 is a schematic structural view of another semi-torus provided by the present invention;
FIG. 4 is a schematic view of a semicircular tube according to the present invention;
fig. 5 is a schematic structural view of another semicircular pipe provided by the invention.
Wherein:
1-hoop fastening;
11-a semi-torus; 111-notches; 112-mounting grooves;
2-an outer protective layer;
21-outer sealing sleeve; 211-a semicircular tube; 2111-chuck; 2112-card slot;
3-an elastic member.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to the attached drawings 1 to 5, the embodiment of the invention discloses a fireproof and antiriot bridge steel cable protection system, which comprises a stay cable and a protective fireproof layer on the outer side of the stay cable; further comprising:
a hoop 1; the number of the hoops 1 is multiple, and the hoops are fastened on the outer side of the protective fireproof layer at uniform intervals along the length direction of the inhaul cable; the circumferential top edge and the circumferential bottom edge of the hoop 1 are connected with a plurality of elastic pieces 3 at intervals;
an outer protective layer 2; the outer protective layer 2 comprises a plurality of sections of outer sealing sleeves 21 sleeved on the outer side of the protective fireproof layer; the outer sealing sleeve 21 comprises two semicircular tubes 211, and after the two semicircular tubes 211 are fixed in a butt joint mode, two ends of each semicircular tube 211 are fixedly connected with the elastic pieces 3 on the two adjacent hoops 1 respectively.
In order to further optimize the technical scheme, the hoop 1 comprises two semi-circular ring bodies 11; one end of each of the two semi-circular rings 11 is hinged, and the other end is butted through the notch 111 and is fastened and connected through a bolt.
In order to further optimize the technical scheme, the inner wall of the semicircular ring body 11 is provided with an elastic fluorine rubber pad.
In order to further optimize the technical scheme, the butt joint seams of the two semi-circular ring bodies 11 and the butt joint seams of the two semi-circular tubes 211 are arranged in a cross manner.
In order to further optimize the technical scheme, the edge of the top surface and the edge of the bottom surface of the semicircular ring body 11 are both provided with mounting grooves 112 for mounting the elastic piece 3; the mounting groove 112 opened on the top edge of the semi-circular ring body 11 and the mounting groove 112 opened on the bottom edge are arranged in a staggered way.
In order to further optimize the technical scheme, the elastic part 3 is a tension spring; one end of the tension spring 3 is fixed with the bottom surface of the mounting groove 112, and the other end is welded and fixed with the end of the semicircular pipe 211.
In order to further optimize the technical scheme, the edges of the two semicircular tubes 211 are clamped and fixed through clamping heads 2111 and clamping grooves 2112.
In order to further optimize the technical scheme, a plurality of basalt mesh fabric layers are bonded on the inner wall of the semicircular pipe 211.
In order to further optimize the technical scheme, fireproof cotton is filled in a gap between the inner wall of the semicircular tube 211 and the protective fireproof layer.
In order to further optimize the technical scheme, the semicircular pipe 211 is a flame-retardant plastic pipe.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A fireproof and antiriot bridge steel cable protection system comprises a stay cable and a protection fireproof layer on the outer side of the stay cable; it is characterized by also comprising:
a hoop (1); the number of the hoops (1) is multiple, and the hoops are fastened on the outer side of the protective fireproof layer at uniform intervals along the length direction of the inhaul cable; a plurality of elastic pieces (3) are connected to the circumferential top edge and the circumferential bottom edge of the hoop (1) at intervals; the hoop (1) comprises two semi-circular ring bodies (11); one ends of the two semi-circular ring bodies (11) are hinged, and the other ends are butted through a notch (111) and are fastened and connected through a bolt;
an outer protective layer (2); the outer protective layer (2) comprises a plurality of sections of outer sealing sleeves (21) sleeved on the outer side of the protective fireproof layer; the outer sealing sleeve (21) comprises two semicircular pipes (211), and after the two semicircular pipes (211) are fixedly butted, two ends of each semicircular pipe are fixedly connected with the elastic pieces (3) on the two adjacent anchor ears (1) respectively;
the inner wall of the semi-circular ring body (11) is provided with an elastic fluororubber pad; the butt joint seam of the semi-circular ring body (11) and the butt joint seams of the two semi-circular pipes (211) are arranged in a cross manner; the edge of the top surface and the edge of the bottom surface of the semi-circular ring body (11) are both provided with mounting grooves (112) for mounting the elastic piece (3); the mounting grooves (112) formed in the edges of the top surfaces of the semi-circular ring bodies (11) and the mounting grooves (112) formed in the edges of the bottom surfaces of the semi-circular ring bodies are arranged in a staggered mode.
2. A fire and explosion protection system for a bridge steel cable according to claim 1, wherein said elastic member (3) is a tension spring; one end of the tension spring is fixed with the bottom surface of the mounting groove (112), and the other end of the tension spring is welded and fixed with the end of the semicircular pipe (211).
3. A fire and explosion protection bridge steel cable protection system according to claim 1, wherein the edges of the two semi-circular pipes (211) are fixed by clamping through a clamping head (2111) and a clamping groove (2112).
4. A fire and explosion protection bridge steel cable protection system according to claim 1, wherein a plurality of basalt mesh fabric layers are bonded to the inner wall of the semicircular tube (211).
5. A fire and explosion protection bridge steel cable protection system according to claim 1, wherein the gap between the inner wall of the semi-circular pipe (211) and the fire protection layer is filled with fire-proof cotton.
6. A fire and explosion protection bridge steel cable protection system as claimed in claim 1, wherein said semicircular tube (211) is a flame retardant plastic tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013695.3A CN113605233B (en) | 2021-08-31 | 2021-08-31 | Fireproof and antiriot bridge steel cable protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111013695.3A CN113605233B (en) | 2021-08-31 | 2021-08-31 | Fireproof and antiriot bridge steel cable protection system |
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| Publication Number | Publication Date |
|---|---|
| CN113605233A CN113605233A (en) | 2021-11-05 |
| CN113605233B true CN113605233B (en) | 2023-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111013695.3A Active CN113605233B (en) | 2021-08-31 | 2021-08-31 | Fireproof and antiriot bridge steel cable protection system |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108894107A (en) * | 2018-06-22 | 2018-11-27 | 深圳市科兰德实业发展有限公司 | Steel strand stay cable |
| CN109944157A (en) * | 2019-03-18 | 2019-06-28 | 江阴法尔胜住电新材料有限公司 | The device and installation method of a kind of pair of suspension cable setting flameproof protection |
| CN110396928A (en) * | 2019-07-16 | 2019-11-01 | 深圳市科兰德实业发展有限公司 | Suspension cable |
| CN211498445U (en) * | 2019-10-25 | 2020-09-15 | 孙维凤 | Anti-collision device suitable for bridge pier |
| CN111305035A (en) * | 2020-03-31 | 2020-06-19 | 广州珠江黄埔大桥建设有限公司 | Bridge stay cable heat insulation and fire resistance protection structure and construction method thereof |
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| CN113605233A (en) | 2021-11-05 |
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