CN102797219A - 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 PDFInfo
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- CN102797219A CN102797219A CN2012102833557A CN201210283355A CN102797219A CN 102797219 A CN102797219 A CN 102797219A CN 2012102833557 A CN2012102833557 A CN 2012102833557A CN 201210283355 A CN201210283355 A CN 201210283355A CN 102797219 A CN102797219 A CN 102797219A
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- bridge
- pull rod
- bracing frame
- anchor head
- reinforcing pull
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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
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 standard, 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, in the operating period of arch bridge, need do industry to the replacing that the suspension rod drag-line carries out repeatedly.Because the structure of early stage arch bridge suspender is weak on antiseptic property and anti-fatigue performance more, 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 pre-buried pipe that early stage arch bridge suspender is supporting is all less than normal usually, and is that have even little to the degree that only can let cable body pass through, therefore; When the suspension rod of this type of arch bridge is changed, the problem that the normal appearance of the anchor head at suspension rod two ends can't be passed pre-buried pipe.Solving pre-buried bore way commonly used less than normal is reaming to be done in original pre-buried duct handle; Concrete structure to bridge; Reaming can cause damage even destroy the principal rod in the structure unavoidably contiguous position, duct; Thereby weaken the intensity of structure, reduce the functional performance of structure, stay hidden danger for the operation of day axle casing; If the steel work to bridge carries out the reaming processing; Then must excise old pipe and use new large-aperture pipe instead; This also can destroy the integrality of original structure, need be with stylish pipe and old member through being welded to connect, and the high temperature that produces in the welding process also will produce certain infringement to old structure.The integrality that how can keep the bridge original structure can reach the effect that makes things convenient for the suspender replacement construction again, and there is the selection
of facing a difficult choice 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: the CN2546491) improvement of technology, its purpose are the method that a kind of arch bridge suspender assembly that is convenient for changing is provided and is used to change suspension rod; Be applicable to that particularly pre-buried bore arch bridge less than normal changes a kind of method that makes up the suspension rod assembly and be used to change old suspension rod that old suspension rod is used; This combination suspension rod is through 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 the effect of installing again, to solve the problems referred to above that prior art exists.
The technical scheme that addresses the above problem is: a kind of arch bridge suspender assembly that is convenient for changing; Comprise reinforcing pull rod assembly, dragline anchorage and bracing frame; Described bracing frame has tubing string shape structure, and its transverse cross-sectional profile is annular or polygon annular, and the central through hole of bracing frame can allow the 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-cast anchor or chill casting anchor; Wherein an end is the prefabricated anchor head that is 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 down; One end of bracing frame is fixed on the 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 linked to each other with an end of reinforcing pull rod assembly, and the other end of reinforcing pull rod assembly is fixed on another bridge construction, and said bridge construction is bridge lower transverse beam or bridge arch rib.
Its further technical scheme is: said reinforcing pull rod assembly is the rigid structures that is 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 on the bridge construction through securing member; The other end of reinforcing pull rod assembly is installed anchor head through the scene of adapter sleeve and dragline anchorage and is connected and composed arch bridge suspender integral body.
Another relevant technical scheme is: a kind of method of changing arch bridge suspender, and it is the above-mentioned a kind of arch bridge suspender assembly that is convenient for changing of the utilization the present invention method that arch bridge suspender enforcement less than normal is changed to pre-buried bore, may further comprise the 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 tubing string shape structure; And the dragline anchorage that prefabricated anchor head is arranged at an end of drag-line cable body;
B. the on-the-spot bracing frame of installing: bracing frame is fixed on the bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod of reinforcing pull rod assembly is anchored on another bridge construction through securing member;
D. the on-the-spot dragline anchorage of installing: an end that guy anchor is had prefabricated anchor head is seated on the bracing frame, the drag-line cable body of dragline anchorage is passed the pre-buried pipe in the 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: through the adapter sleeve of reinforcing pull rod assembly anchor head is installed at the scene of reinforcing pull rod assembly and dragline anchorage and linked into an integrated entity, it is whole to constitute arch bridge suspender.
In said a kind of method of changing arch bridge suspender: in the on-the-spot bracing frame step of installing of B.; When the river course headroom had requirement under to bridge, it was that prefabricated anchor head with bracing frame and dragline anchorage is fixed on the arch rib top that bracing frame is fixed on the bridge construction; When the river course headroom did not require under to bridge, it can be the below that the prefabricated anchor head of bracing frame and dragline anchorage is fixed on the bridge lower transverse beam that bracing frame is fixed on the bridge construction; Also can be that prefabricated anchor head with bracing frame and dragline anchorage is fixed on the arch rib top.
Owing to take said structure, the method that a kind of arch bridge suspender assembly that is convenient for changing of the present invention and being used to is changed suspension rod also has following beneficial effect except that having whole advantages that original a kind of arch bridge suspender assembly had:
1. a kind of arch bridge suspender assembly that is convenient for changing of the present invention in working order down; One end of bracing frame is fixed on below bridge construction-be on the bridge arch rib or the bridge lower transverse beam; The prefabricated anchor head that the prefabrication of dragline anchorage is good is fixed on the other end of bracing frame, and support frame as described above has tubing string shape structure; Be used for stay cable end anchor head and bridge construction are separated, make the component of anchor head avoid the interference of the pre-buried pipe of bridge.
2. the dragline anchorage of a kind of arch bridge suspender assembly that is 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 an end is the prefabricated anchor head that is 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); When at the scene dragline anchorage being installed, be that the end that guy anchor has a prefabricated anchor head is fixed on the bracing frame, the drag-line cable body of dragline anchorage is passed the pre-buried pipe in the bridge construction, reproduce another on-the-spot anchor head of installing that dragline anchorage is installed; Owing to just will not have the drag-line cable body of anchor head to pass pre-buried pipe, therefore, the arch bridge suspender that is specially adapted to pre-buried bore old-fashioned structure less than normal is changed the suspension rod operation.
Therefore, the method that adopts a kind of arch bridge suspender assembly that is convenient for changing of the present invention and being used to change suspension rod can make the replacing construction of suspension rod reach the original structure that neither destroys a bridge to be convenient to the effect of installing again.
Below in conjunction with accompanying drawing and embodiment to a kind of arch bridge suspender assembly that is convenient for changing of the present invention and the technical characterictic that is used to change the method for suspension rod be described further.
Description of drawings
Fig. 1: the structure of a kind of arch bridge suspender assembly that is convenient for changing of the embodiment of the invention one and install and use state reference map;
Fig. 2: the structure of a kind of arch bridge suspender assembly that is convenient for changing of the embodiment of the invention two and install and use state reference map;
Fig. 3: the structural representation of existing combination suspension rod.
Among the figure:
The 11-securing member, 12-reinforcing pull rod, the spherical hinge of 13-, 14-adapter sleeve;
The anchor head that the 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;
The 3-bracing frame, 42-bridge construction, 41-bridge arch rib, 42-bridge lower transverse beam; Pre-buried pipe in the pre-buried pipe in the 51-bridge arch rib, 52-bridge lower transverse beam, the 6-bucker.
The specific embodiment
Embodiment one:
A kind of arch bridge suspender assembly that is convenient for changing comprises the reinforcing pull rod assembly, dragline anchorage, the bracing frame 3 with tubing string shape structure;
Said reinforcing pull rod assembly is the rigid structures that is 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 said 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-cast anchor or chill casting anchor, and wherein an end is the prefabricated anchor head 21 that is 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 tubing string shape 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 down, an end of bracing frame 3 is fixed on a bridge construction-be on the bridge arch rib 41, and an end of the reinforcing pull rod 12 of reinforcing pull rod assembly is anchored at below another bridge construction-be bridge lower transverse beam 42 through securing member 11; The prefabricated anchor head 21 of dragline anchorage 2 is fixed on the other end of bracing frame 3, and the scene installation anchor head 23a of dragline anchorage links to each other with the other end of the reinforcing pull rod 12 of reinforcing pull rod assembly 1 through adapter sleeve 14 and constitutes arch bridge suspender whole (referring to Fig. 1).
This kind installation form is suitable for when the river course headroom has requirement under the bridge.
Embodiment two:
A kind of arch bridge suspender assembly that is convenient for changing; The basic structure of the arch bridge suspender assembly that this is convenient for changing comprises the reinforcing pull rod assembly with embodiment one, dragline anchorage, the bracing frame 3 with tubing string shape structure;
Be with embodiment one difference: in working order down; One end of described bracing frame 3 is fixed on the bridge construction-and be to be fixed on below the bridge lower transverse beam 42, an end of the reinforcing pull rod 12 of reinforcing pull rod assembly is anchored at another bridge construction-be (referring to Fig. 2) on the bridge arch rib 41 through securing member 11.
When the river course headroom has requirement under for bridge; Be suitable for adopting installation form structure shown in the embodiment one; If when the river course headroom does not require under the bridge, generally adopt installation form structure shown in the embodiment two.
Embodiment three:
A kind of method of changing arch bridge suspender, it is to utilize embodiment one or embodiment two described a kind of arch bridge suspender assemblies that are convenient for changing method that arch bridge suspender enforcement less than normal is changed to pre-buried bore, it may further comprise the 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 tubing string shape structure; And the dragline anchorage that prefabricated anchor head 21 is arranged at an end of drag-line cable body 22;
B. the on-the-spot bracing frame of installing: bracing frame 3 is fixed on the bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod 12 of reinforcing pull rod assembly 1 is anchored on another bridge construction through securing member 11;
D. the on-the-spot dragline anchorage of installing: an end that guy anchor is had prefabricated anchor head 21 is seated on the bracing frame 3, the drag-line cable body 22 of dragline anchorage is passed the pre-buried pipe in the 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: the adapter sleeve 14 through the reinforcing pull rod assembly is installed anchor head with the scene of reinforcing pull rod assembly and dragline anchorage
23aLink into an integrated entity, it is whole to constitute arch bridge suspender.
In the on-the-spot bracing frame step of installing of B., when the river course headroom had requirement under to bridge, it was that bracing frame 3 is fixed on the arch rib top that bracing frame is fixed on the bridge construction.
In the on-the-spot bracing frame step of installing of B., when the river course headroom did not require under to bridge, it was the below that bracing frame 3 is fixed on the bridge lower transverse beam that bracing frame 3 is fixed on the bridge construction; Also can be that bracing frame 3 is fixed on the arch rib top.
Claims (5)
1. arch bridge suspender assembly that is 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 tubing string shape 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;
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-cast anchor or chill casting anchor; Wherein an end is the prefabricated anchor head (21) that is 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 down; One end of bracing frame (3) is fixed on the 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 linked to each other with an end of reinforcing pull rod assembly, and the other end of reinforcing pull rod assembly is fixed on another bridge construction (42/41), and said bridge construction is bridge arch rib (41) or bridge lower transverse beam (42).
2. a kind of arch bridge suspender assembly that is convenient for changing according to claim 1; It is characterized in that: said reinforcing pull rod assembly is the rigid structures that is 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 reinforcing pull rod of reinforcing pull rod assembly (12) is anchored on the bridge construction (41/42) through securing member (11), and the other end of reinforcing pull rod assembly is installed anchor head (23a) through adapter sleeve (14) with the scene of dragline anchorage and connected and composed arch bridge suspender integral body.
3. method of changing arch bridge suspender is characterized in that: it is to utilize the described a kind of arch bridge suspender assembly that is convenient for changing of claim 1 that pre-buried bore arch bridge suspender less than normal is implemented the method changed, may further comprise the 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 tubing string shape structure; And the dragline anchorage that prefabricated anchor head (21) are arranged at an end of drag-line cable body (22);
B. the on-the-spot bracing frame of installing: bracing frame (3) is fixed on the bridge construction;
C. the on-the-spot reinforcing pull rod assembly of installing: the reinforcing pull rod (12) of reinforcing pull rod assembly is anchored on another bridge construction through securing member (11);
D. the on-the-spot dragline anchorage of installing: an end that guy anchor is had prefabricated anchor head (21) is seated on the bracing frame (3); The drag-line cable body (22) of dragline anchorage is passed the pre-buried pipe in the 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: through the adapter sleeve (14) of reinforcing pull rod assembly anchor head (23a) is installed at the scene of reinforcing pull rod assembly and dragline anchorage and linked into an integrated entity, it is whole to constitute arch bridge suspender.
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 the river course headroom had requirement under to bridge, it was that prefabricated anchor head (21) with bracing frame and dragline anchorage is fixed on the arch rib top that bracing frame is fixed on the 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 the river course headroom did not require under to bridge, it was that prefabricated anchor head (21) with bracing frame and dragline anchorage is fixed on the below of bridge lower transverse beam or is fixed on the top of arch rib that bracing frame is fixed on the bridge construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210283355.7A CN102797219B (en) | 2012-08-10 | 2012-08-10 | Arch bridge suspender convenient to replace and method for replacing the same |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210283355.7A CN102797219B (en) | 2012-08-10 | 2012-08-10 | Arch bridge suspender convenient to replace and method for replacing the same |
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| CN102797219A true CN102797219A (en) | 2012-11-28 |
| CN102797219B CN102797219B (en) | 2014-08-27 |
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| CN201210283355.7A Active CN102797219B (en) | 2012-08-10 | 2012-08-10 | Arch bridge suspender convenient to replace and method for replacing the same |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046466A (en) * | 2012-12-29 | 2013-04-17 | 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 |
| CN103485285A (en) * | 2013-08-30 | 2014-01-01 | 河南省交通科学技术研究院有限公司 | Replacement method of rigid hanger of tied-arch bridge |
| CN104047230A (en) * | 2014-06-26 | 2014-09-17 | 葛洲坝集团项目管理有限公司 | Treatment method for through steel tube concrete simply supported beam tied-arch bridge suspender embedded pipe deviation |
| 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 |
| CN105780641A (en) * | 2016-04-20 | 2016-07-20 | 广东和立土木工程有限公司 | Three-section hinging type arch bridge suspender system with rigid rods combined with flexible cable |
| CN106567319A (en) * | 2016-11-09 | 2017-04-19 | 深圳市市政设计研究院有限公司 | Flexible inhaul cable connection structure and bridge structure |
| CN109868756A (en) * | 2017-12-04 | 2019-06-11 | 柳州欧维姆机械股份有限公司 | A kind of reaming system and its construction method for bridge built-in pipe |
| CN112832130A (en) * | 2019-11-25 | 2021-05-25 | 湖南省中南桥梁安装工程有限公司 | Be applied to steel pull rod structure of bridge installation |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046466A (en) * | 2012-12-29 | 2013-04-17 | 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 |
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| CN103485285A (en) * | 2013-08-30 | 2014-01-01 | 河南省交通科学技术研究院有限公司 | Replacement method of rigid hanger of tied-arch bridge |
| 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 |
| CN104047230A (en) * | 2014-06-26 | 2014-09-17 | 葛洲坝集团项目管理有限公司 | Treatment method for through steel tube concrete simply supported beam tied-arch bridge suspender embedded pipe deviation |
| 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 |
| CN105780641A (en) * | 2016-04-20 | 2016-07-20 | 广东和立土木工程有限公司 | Three-section hinging type arch bridge suspender system with rigid rods combined with flexible cable |
| CN106567319A (en) * | 2016-11-09 | 2017-04-19 | 深圳市市政设计研究院有限公司 | Flexible inhaul cable connection structure and bridge structure |
| CN109868756A (en) * | 2017-12-04 | 2019-06-11 | 柳州欧维姆机械股份有限公司 | A kind of reaming system and its construction method for bridge built-in pipe |
| CN109868756B (en) * | 2017-12-04 | 2024-03-19 | 柳州欧维姆机械股份有限公司 | Reaming system for bridge embedded pipe and construction method of reaming system |
| CN112832130A (en) * | 2019-11-25 | 2021-05-25 | 湖南省中南桥梁安装工程有限公司 | Be applied to steel pull rod structure of bridge installation |
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| CN102797219B (en) | 2014-08-27 |
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