CN102797219B - Arch bridge suspender convenient to replace and method for replacing the same - Google Patents

Arch bridge suspender convenient to replace and method for replacing the same Download PDF

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Publication number
CN102797219B
CN102797219B CN201210283355.7A CN201210283355A CN102797219B CN 102797219 B CN102797219 B CN 102797219B CN 201210283355 A CN201210283355 A CN 201210283355A CN 102797219 B CN102797219 B CN 102797219B
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China
Prior art keywords
bridge
pull rod
bracing frame
anchor head
reinforcing pull
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CN201210283355.7A
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CN102797219A (en
Inventor
廖松山
李文献
华剑平
李东平
石伟
郑国坤
李华萍
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Liuzhou OVM Machinery Co Ltd
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Liuzhou OVM Machinery Co Ltd
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Abstract

The invention provides an arch bridge suspender convenient to replace. The arch bridge suspender comprises a steel pull rod module, an inhaul cable anchor and a supporting frame, wherein the supporting frame is provided with a pipe column-shaped structure; the cross section of the supporting frame is shaped like a circular ring or polygonal ring; a central through hole of the supporting frame can allow an inhaul cable body to pass through; the inhaul cable anchor comprises the inhaul cable body and anchor heads, wherein the anchor heads are positioned at two ends of the inhaul cable body; one of the anchor heads is an prefabricated anchor head, and the other of the anchor heads is a field mounting anchor head; in a working state, one of the supporting frame is fixed on a bridge structure; a prefabricated anchor head of the inhaul cable anchor is at the other end of the supporting frame; the field mounting anchor head end of the inhaul cable anchor is connected with one end of the steel pull rod module; the other end of the steel pull rod module is fixed on the other bridge structure; and the bridge structure is an underbridge cross beam or a bridge arch rib. The arch bridge suspender provided by the invention is especially suitable for arch bridges with smaller embedded pipe internal diameters to use during replacing old suspenders; and through the adoption of a method for replacing the suspender, the replacing construction of the suspender can obtain effects of no damage to the original structure of the bridge and convenience for mounting.

Description

A kind of arch bridge suspender assembly being convenient for changing and for changing the method for suspension rod
Technical field
The present invention relates to a kind of bridge member, particularly a kind of arch bridge suspender assembly.
Background technology
According to the regulation of highway in China bridges and culverts relevant design specification, the benchmark operating period of highway bridge and culvert design is 100 years, and to most of arch bridge, the application life of its suspension rod cable systems is many below 20 years.Therefore industry is done in the replacing that, needs the suspension rod drag-line to carry out repeatedly within the operating period of arch bridge.Because the structure of early stage arch bridge suspender is weak more on antiseptic property and anti-fatigue performance, along with technological progress, the suspension rod of old-fashioned structure will be replaced by the better novel suspension rod of performance.With respect to novel suspension rod, the internal diameter of the supporting built-in pipe of early stage arch bridge suspender is conventionally all less than normal, the even little degree to only allowing cable body pass through having, therefore, in the time that the suspension rod of this type of arch bridge is changed, the normal appearance of anchor head at suspension rod two ends cannot be through the problem of built-in pipe.Solving built-in pipe internal diameter conventional way less than normal is that reaming processing is done in original pre-buried duct, to the concrete structure of bridge, reaming can cause damage even to destroy the principal rod in structure to contiguous position, duct unavoidably, thereby weaken the intensity of structure, reduce the functional performance of structure, leave hidden danger to the operation of day axle casing; If the steel work of bridge is carried out to reaming processing, must excise old pipe and use new large-aperture pipe instead, this also can destroy the integrality of original structure, need to be by being welded to connect with stylish pipe and old member, and the high temperature producing in welding process also will produce certain infringement to old structure.How can keep the integrality of bridge original structure, can reach again the effect that facilitates suspender replacement construction, there is awkward selection in this in this type of old bridge improvement project .
Summary of the invention
The present invention is the utility model patent (denomination of invention: " a kind of arch bridge suspender assembly " that the applicant has been obtained the authorization, notice of authorization number: CN2546491) improvement of technology, its object is to provide a kind of arch bridge suspender assembly being convenient for changing and for changing the method for suspension rod; What be particularly applicable to that built-in pipe internal diameter arch bridge less than normal changes that old suspension rod uses a kind ofly combines hanger rod component and for changing the method for old suspension rod, this combination suspension rod is by the reasonable disposition to hanging rod structure, make the replacing construction of suspension rod reach the original structure that neither destroys a bridge and be convenient to again the effect of installing, the problems referred to above that exist to solve prior art.
The technical scheme addressing the above problem is: a kind of arch bridge suspender assembly being convenient for changing, comprise reinforcing pull rod assembly, dragline anchorage and bracing frame, described bracing frame has pipe column structure, and its transverse cross-sectional profile is annular or polygon annular, and the central through hole of bracing frame can allow drag-line cable body to pass through; Described dragline anchorage is made up of drag-line cable body and the anchor head that is positioned at drag-line cable body two ends, the anchor head at dragline anchorage two ends is hot casting anchor or chill casting anchor, wherein one end is the prefabricated anchor head being prefabricated in the factory, and the other end is that anchor head is installed at the scene of fabrication and installation at the construction field (site);
In working order, one end of bracing frame is fixed in a bridge construction, the prefabricated anchor head of dragline anchorage is fixed on the other end of bracing frame, the scene of dragline anchorage is installed anchor head and is connected with one end of reinforcing pull rod assembly, the other end of reinforcing pull rod assembly is fixed in another bridge construction, and described bridge construction is bridge lower transverse beam or bridge arch rib.
Its further technical scheme is: described reinforcing pull rod assembly is the rigid structures being made up of reinforcing pull rod, spherical hinge, adapter sleeve and securing member, the securing member of reinforcing pull rod assembly is nut, snap ring or boss, and the reinforcing pull rod of reinforcing pull rod assembly is anchored in bridge construction by securing member; The other end of reinforcing pull rod assembly is installed anchor head by the scene of adapter sleeve and dragline anchorage and is connected and composed arch bridge suspender entirety.
Another relevant technical scheme is: a kind of method of changing arch bridge suspender, and it is to use the above-mentioned a kind of arch bridge suspender assembly being convenient for changing of the present invention to implement to built-in pipe internal diameter arch bridge suspender less than normal the method for changing, and comprises the following steps:
A. the arch bridge suspender assembly of replacing easy to make: the reinforcing pull rod assembly that is prefabricated in the factory, the bracing frame of pipe column structure; And there is a dragline anchorage of prefabricated anchor head in one end of drag-line cable body;
B. the on-the-spot bracing frame of installing: bracing frame is fixed in a bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod of reinforcing pull rod assembly is anchored in another bridge construction by securing member;
D. the on-the-spot dragline anchorage of installing: one end guy anchor to prefabricated anchor head is seated on bracing frame, and the drag-line cable body of dragline anchorage is passed to the built-in pipe in bridge construction, and anchor head is installed at the on-the-spot scene that dragline anchorage is installed;
E. connect reinforcing pull rod assembly and dragline anchorage: by the adapter sleeve of reinforcing pull rod assembly, anchor head is installed in the scene of reinforcing pull rod assembly and dragline anchorage and link into an integrated entity, form arch bridge suspender entirety.
In a kind of described method of changing arch bridge suspender: in the on-the-spot bracing frame step of installing of B., when river course headroom has requirement under to bridge, it is that the prefabricated anchor head of bracing frame and dragline anchorage is fixed on to arch rib top that bracing frame is fixed in a bridge construction; When river course headroom does not require under to bridge, it can be the below that the prefabricated anchor head of bracing frame and dragline anchorage is fixed on to bridge lower transverse beam that bracing frame is fixed in a bridge construction; Also can be that the prefabricated anchor head of bracing frame and dragline anchorage is fixed on to arch rib top.
Owing to taking said structure, a kind of arch bridge suspender assembly being convenient for changing of the present invention and for changing the method for suspension rod except having all advantages that original a kind of arch bridge suspender assembly has, also has following beneficial effect:
A kind of arch bridge suspender assembly being convenient for changing of the present invention in working order under, one end of bracing frame is fixed on below a bridge construction-be on bridge arch rib or bridge lower transverse beam, the good prefabricated anchor head of prefabrication of dragline anchorage is fixed on the other end of bracing frame, support frame as described above, there is pipe column structure, for stay cable end anchor head and bridge construction are separated, make the component of anchor head avoid the interference of bridge built-in pipe.
2. the dragline anchorage of a kind of arch bridge suspender assembly being convenient for changing of the present invention is made up of drag-line cable body and the anchor head that is positioned at drag-line cable body two ends, wherein one end is the prefabricated anchor head being prefabricated in the factory, and the other end is that anchor head is installed at the scene of fabrication and installation at the construction field (site); While at the scene dragline anchorage being installed, be that one end that guy anchor is had to a prefabricated anchor head is fixed on bracing frame, the drag-line cable body of dragline anchorage, through the built-in pipe in bridge construction, is reproduced to another on-the-spot anchor head of installing that dragline anchorage is installed; Owing to just will there is no the drag-line cable body of anchor head through built-in pipe, therefore, the arch bridge suspender that is specially adapted to built-in pipe internal diameter old-fashioned structure less than normal is changed suspension rod operation.
Therefore, adopt a kind of arch bridge suspender assembly being convenient for changing of the present invention and can make the replacing construction of suspension rod reach the original structure that neither destroys a bridge for changing the method for suspension rod and be convenient to again the effect of installing.
A kind of arch bridge suspender assembly being convenient for changing below in conjunction with drawings and Examples to the present invention and being described further for the technical characterictic of the method for changing suspension rod.
Brief description of the drawings
Fig. 1: the structure of a kind of arch bridge suspender assembly being convenient for changing of the embodiment of the present invention one and install and use state reference map;
Fig. 2: the structure of a kind of arch bridge suspender assembly being convenient for changing of the embodiment of the present invention two and install and use state reference map;
Fig. 3: the structural representation of existing combination suspension rod.
In figure:
11-securing member, 12-reinforcing pull rod, the spherical hinge of 13-, 14-adapter sleeve;
The anchor head that 21-prefabrication is good, 22---drag-line cable body, the anchor head of the fabrication and installation at the construction field (site) of 23a-dragline anchorage, the anchor head that the dragline anchorage of the existing arch bridge suspender assembly of 23b-is prefabricated in the factory;
3-bracing frame, 41 42-bridge construction, 41-bridge arch rib, 42-bridge lower transverse beam; Built-in pipe in 51-bridge arch rib, the built-in pipe in 52-bridge lower transverse beam, 6-bucker.
Detailed description of the invention
Embodiment mono-:
The arch bridge suspender assembly being convenient for changing, comprises reinforcing pull rod assembly, and dragline anchorage has the bracing frame 3 of pipe column structure;
Described reinforcing pull rod assembly is the rigid structures being made up of reinforcing pull rod 12, spherical hinge 13, adapter sleeve 14 and securing member 11, the securing member of reinforcing pull rod assembly is nut, snap ring or boss, the dragline anchorage of described arch bridge suspender is made up of drag-line cable body 22 and the anchor head 21, the 23a that are positioned at drag-line cable body two ends, the anchor head at dragline anchorage two ends is hot casting anchor or chill casting anchor, wherein one end is the prefabricated anchor head 21 being prefabricated in the factory, and the other end is that anchor head 23a is installed at the scene of fabrication and installation at the construction field (site);
Described bracing frame 3 has pipe column structure, and its transverse cross-sectional profile is annular or polygon annular, and the central through hole of bracing frame 3 can allow drag-line cable body 22 to pass through;
In working order, one end of bracing frame 3 is fixed on a bridge construction-be on bridge arch rib 41, and one end of the reinforcing pull rod 12 of reinforcing pull rod assembly is anchored at by securing member 11 below another bridge construction-be bridge lower transverse beam 42; The prefabricated anchor head 21 of dragline anchorage 2 is fixed on the other end of bracing frame 3, and the scene of dragline anchorage is installed anchor head 23a and is connected with the other end of the reinforcing pull rod 12 of reinforcing pull rod assembly 1 and formed arch bridge suspender entirety (referring to Fig. 1) by adapter sleeve 14.
This kind of installation form is suitable for when under bridge, river course headroom has requirement.
Embodiment bis-:
A kind of arch bridge suspender assembly being convenient for changing; The basic structure of the arch bridge suspender assembly that this is convenient for changing, with embodiment mono-, comprises reinforcing pull rod assembly, and dragline anchorage has the bracing frame 3 of pipe column structure;
Be with embodiment mono-difference: in working order, one end of described bracing frame 3 is fixed in a bridge construction-and be to be fixed on below bridge lower transverse beam 42, one end of the reinforcing pull rod 12 of reinforcing pull rod assembly is anchored at another bridge construction-be (referring to Fig. 2) on bridge arch rib 41 by securing member 11.
When river course headroom has requirement under for bridge; Be suitable for adopting installation form structure shown in embodiment mono-; If when river course headroom does not require under bridge, generally adopt installation form structure shown in embodiment bis-.
Embodiment tri-:
Change a method for arch bridge suspender, it is to utilize a kind of arch bridge suspender assembly being convenient for changing described in embodiment mono-or embodiment bis-to implement to built-in pipe internal diameter arch bridge suspender less than normal the method for changing, and it comprises the following steps:
A. the arch bridge suspender assembly of replacing easy to make: the reinforcing pull rod assembly that is prefabricated in the factory, the bracing frame of pipe column structure; And there is a dragline anchorage of prefabricated anchor head 21 in one end of drag-line cable body 22;
B. the on-the-spot bracing frame of installing: bracing frame 3 is fixed in a bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod of reinforcing pull rod assembly 1 12 is anchored in another bridge construction by securing member 11;
D. the on-the-spot dragline anchorage of installing: one end guy anchor to prefabricated anchor head 21 is seated on bracing frame 3, the built-in pipe that the drag-line cable body of dragline anchorage 22 is passed in bridge construction, and anchor head 23a is installed at the on-the-spot scene that dragline anchorage is installed;
E. connect reinforcing pull rod assembly and dragline anchorage: anchor head is installed at the scene of reinforcing pull rod assembly and dragline anchorage by the adapter sleeve 14 by reinforcing pull rod assembly 23alink into an integrated entity, form arch bridge suspender entirety.
In the on-the-spot bracing frame step of installing of B., when river course headroom has requirement under to bridge, it is that bracing frame 3 is fixed on to arch rib top that bracing frame is fixed in a bridge construction.
In the on-the-spot bracing frame step of installing of B., when river course headroom does not require under to bridge, it is the below that bracing frame 3 is fixed on to bridge lower transverse beam that bracing frame 3 is fixed in a bridge construction; Also can be that bracing frame 3 is fixed on to arch rib top.

Claims (5)

1. the arch bridge suspender assembly being convenient for changing, comprise dragline anchorage, reinforcing pull rod assembly, it is characterized in that: it also comprises a bracing frame (3), described bracing frame (3) has pipe column structure, its transverse cross-sectional profile is annular or polygon annular, and the central through hole of bracing frame (3) can allow drag-line cable body (22) to pass through;
Described dragline anchorage is made up of drag-line cable body (22) and the anchor head (21,23a) that is positioned at drag-line cable body two ends, the anchor head at dragline anchorage two ends is hot casting anchor or chill casting anchor, wherein one end is the prefabricated anchor head (21) being prefabricated in the factory, and the other end is that anchor head (23a) is installed at the scene of fabrication and installation at the construction field (site);
In working order, one end of bracing frame (3) is fixed in a bridge construction (41/42), the prefabricated anchor head (21) of dragline anchorage is fixed on the other end of bracing frame (3), the scene of dragline anchorage is installed anchor head (23a) and is connected with one end of reinforcing pull rod assembly, it is upper that the other end of reinforcing pull rod assembly is fixed on another bridge construction (42/41), and described bridge construction is bridge arch rib (41) or bridge lower transverse beam (42).
2. a kind of arch bridge suspender assembly being convenient for changing according to claim 1, it is characterized in that: described reinforcing pull rod assembly is the rigid structures being made up of reinforcing pull rod (12), spherical hinge (13), adapter sleeve (14) and securing member (11), the securing member of reinforcing pull rod assembly is nut, snap ring or boss, it is upper that the reinforcing pull rod (12) of reinforcing pull rod assembly is anchored at bridge construction (41/42) by securing member (11), and the other end of reinforcing pull rod assembly is installed anchor head (23a) by adapter sleeve (14) with the scene of dragline anchorage and connected and composed arch bridge suspender entirety.
3. a method of changing arch bridge suspender, is characterized in that: it is to utilize a kind of arch bridge suspender assembly being convenient for changing described in claim 1 to implement to built-in pipe internal diameter arch bridge suspender less than normal the method for changing, and comprises the following steps:
A. the arch bridge suspender assembly of replacing easy to make: the reinforcing pull rod assembly that is prefabricated in the factory, the bracing frame (3) of pipe column structure; And there is a dragline anchorage of prefabricated anchor head (21) in one end of drag-line cable body (22);
B. the on-the-spot bracing frame of installing: bracing frame (3) is fixed in a bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod of reinforcing pull rod assembly (12) is anchored in another bridge construction by securing member (11);
D. the on-the-spot dragline anchorage of installing: one end guy anchor to prefabricated anchor head (21) is seated on bracing frame (3), the drag-line cable body (22) of dragline anchorage is passed to the built-in pipe in bridge construction, and anchor head (23a) is installed at the on-the-spot scene that dragline anchorage is installed;
E. connect reinforcing pull rod assembly and dragline anchorage: by the adapter sleeve (14) of reinforcing pull rod assembly, anchor head (23a) is installed in the scene of reinforcing pull rod assembly and dragline anchorage and link into an integrated entity, form arch bridge suspender entirety.
4. the method for replacing arch bridge suspender according to claim 3, it is characterized in that: in the on-the-spot bracing frame step of installing of B., when river course headroom has requirement under to bridge, it is that the prefabricated anchor head (21) of bracing frame and dragline anchorage is fixed on to arch rib top that bracing frame is fixed in a bridge construction.
5. the method for replacing arch bridge suspender according to claim 3, it is characterized in that: in the on-the-spot bracing frame step of installing of B., when river course headroom does not require under to bridge, it is the top that the prefabricated anchor head (21) of bracing frame and dragline anchorage is fixed on to the below of bridge lower transverse beam or is fixed on arch rib that bracing frame is fixed in a bridge construction.
CN201210283355.7A 2012-08-10 2012-08-10 Arch bridge suspender convenient to replace and method for replacing the same Active CN102797219B (en)

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Application Number Priority Date Filing Date Title
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CN102797219B true CN102797219B (en) 2014-08-27

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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103046466B (en) * 2012-12-29 2014-12-10 广东省公路勘察规划设计院股份有限公司 Detectable, replaceable and adjustable arch bridge suspender system and method for constructing same
CN103485285B (en) * 2013-08-30 2016-08-24 河南省交通科学技术研究院有限公司 A kind of replacing options of bowstring arch bridge rigid hanger
CN104047230B (en) * 2014-06-26 2016-08-17 葛洲坝集团项目管理有限公司 The processing method of Through Steel pipeline overhead lifting concrete simply supported beam tied arch bridge hanger rod built-in pipe off normal
CN105113429A (en) * 2015-08-27 2015-12-02 中国市政工程华北设计研究总院有限公司 Method for replacing suspenders of bowstring arch bridge
CN105780641B (en) * 2016-04-20 2017-11-07 广东和立土木工程有限公司 A kind of arch bridge suspender system of three sections of hinge formulas of push-and-pull rod combination flexible cable
CN106567319B (en) * 2016-11-09 2018-03-16 深圳市市政设计研究院有限公司 A kind of flexible cable attachment structure and bridge structure

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JP2004270313A (en) * 2003-03-10 2004-09-30 Shegu Kyoryo Kenkyusho:Kk Bridge, bridge structure, and construction method of bridge
CN2801876Y (en) * 2005-06-08 2006-08-02 汤朋 Broken prewarning and on-line dismounting device used for bridge boom and pulling cable
KR20070001410A (en) * 2005-06-29 2007-01-04 (주)한맥기술 Mounting structure of steel cross-beam in multi-girder concrete bridge and its construction method
CN200999323Y (en) * 2007-02-06 2008-01-02 同济大学 Replaceable hoisting rod for half-through or through arch bridges
CN202936720U (en) * 2012-08-10 2013-05-15 柳州欧维姆机械股份有限公司 Arch bridge suspension rod assembly convenient to replace

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004270313A (en) * 2003-03-10 2004-09-30 Shegu Kyoryo Kenkyusho:Kk Bridge, bridge structure, and construction method of bridge
CN2801876Y (en) * 2005-06-08 2006-08-02 汤朋 Broken prewarning and on-line dismounting device used for bridge boom and pulling cable
KR20070001410A (en) * 2005-06-29 2007-01-04 (주)한맥기술 Mounting structure of steel cross-beam in multi-girder concrete bridge and its construction method
CN200999323Y (en) * 2007-02-06 2008-01-02 同济大学 Replaceable hoisting rod for half-through or through arch bridges
CN202936720U (en) * 2012-08-10 2013-05-15 柳州欧维姆机械股份有限公司 Arch bridge suspension rod assembly convenient to replace

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