CN111472286B - Suspension type anchor pulling device and application construction method thereof - Google Patents
Suspension type anchor pulling device and application construction method thereof Download PDFInfo
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- CN111472286B CN111472286B CN202010330449.XA CN202010330449A CN111472286B CN 111472286 B CN111472286 B CN 111472286B CN 202010330449 A CN202010330449 A CN 202010330449A CN 111472286 B CN111472286 B CN 111472286B
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- fixing
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- box girder
- steel box
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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
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
- E01D21/06—Methods or apparatus specially adapted for erecting or assembling bridges by translational movement of the bridge or bridge sections
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2101/00—Material constitution of bridges
- E01D2101/30—Metal
Abstract
The invention discloses a suspension type anchor pulling device and an application construction method thereof. The suspension type anchor pulling device comprises a first fixing piece, a second fixing piece and a third fixing piece, wherein the first fixing piece is detachably connected with a transverse partition plate of a steel box girder through a pull rod and comprises a first fixing plate; the second fixing piece is connected with the steel strand used for pushing construction and comprises a second fixing plate; the fixing groove is arranged between the first fixing piece and the second fixing piece and used for fixing the bottom plate of the steel box girder; the first fixing plate and the diaphragm plate of the steel box girder are correspondingly provided with first structural holes, and the pull rod penetrates through the diaphragm plate of the steel box girder and is connected with the first fixing plate through the first structural holes; and a second structural hole for the steel strand to pass through is formed in the second fixing plate. The invention solves the technical problems that the bottom plate is easy to deform due to direct contact with a hoisting instrument in the hoisting process, so that the later correction work needs to be performed by spending time, the whole construction difficulty is increased, and the construction period is prolonged.
Description
Technical Field
The invention relates to the field of steel box girder pushing construction, in particular to a suspension type anchor pulling device and an application construction method thereof.
Background
With the rapid development of urban traffic infrastructure construction in China, more and more roads and urban overpasses span the existing roads. The bridge construction is greatly influenced by the passing of the underpass road. In order to reduce the influence on the traffic of the crossed roads, shorten the construction period and reduce the risk and the management difficulty, the steel structure bridge is suitable, the steel structure bridge is stable and firm in stress and is loved by a plurality of people in appearance, and therefore more and more steel structure bridges are promoted to be produced.
Because the new construction and the existing road have the three-dimensional intersection, the steel box girder pushing process is widely applied in the construction process for reducing the influence on the existing road,
at present, domestic straightway steel box girders mostly adopt a pushing type, the deviation rectification control is simple, but when a complex line shape is spanned, a hoisting process is mostly adopted, the influence on traffic is large, and when the existing bridge is spanned, the hoisting difficulty is larger, and the baseplate is easy to deform due to direct contact with hoisting equipment in the hoisting process, and the later-stage correction work needs to be performed by spending time.
Disclosure of Invention
The invention mainly aims to provide a suspension type anchor pulling device and an application construction method thereof, and aims to solve the technical problems that the floor is easy to deform due to direct contact with a hoisting instrument in the hoisting process, so that the later correction work needs to be performed by spending time, the whole construction difficulty is increased, and the construction period is prolonged.
To achieve the above object, according to one aspect of the present application, there is provided a suspension anchor.
The suspension type anchor pulling device according to the invention comprises:
the first fixing piece is detachably connected with the diaphragm plate of the steel box girder through a pull rod and comprises a first fixing plate;
the second fixing piece is connected with the steel strand used for pushing construction and comprises a second fixing plate;
the fixing groove is arranged between the first fixing piece and the second fixing piece and used for fixing the bottom plate of the steel box girder;
the first fixing plate and the diaphragm plate of the steel box girder are correspondingly provided with first structural holes, and the pull rod penetrates through the first fixing plate and the diaphragm plate of the steel box girder through the first structural holes; and a second structural hole for the steel strand to pass through is formed in the second fixing plate.
Furthermore, two ends of the pull rod are fixed in position through bolts.
Furthermore, an extrusion sleeve for fixing the steel strand is arranged on the outer side of the second fixing plate.
Further, the first fixing piece comprises a first auxiliary surface, the first auxiliary surface is sleeved on the pull rod, is arranged between the first fixing plate and the transverse partition plate of the steel box girder, and is fixedly connected with the outer side of the inner wall of the upper portion of the fixing groove.
Furthermore, the second fixing piece comprises a second auxiliary surface, the second auxiliary surface is sleeved on the steel strand, is arranged on one side departing from the extrusion sleeve and is fixedly connected with the outer side of the inner wall of the lower portion of the fixing groove.
Further, the first auxiliary surface and the second auxiliary surface are oppositely arranged.
Further, a plurality of the first auxiliary surfaces and the second auxiliary surfaces are included.
In order to achieve the above object, according to another aspect of the present application, there is provided a construction method of a suspension type anchor puller.
The construction method of the suspension type anchor pulling device comprises the following steps: the suspended anchor puller as described in any one of the above paragraphs, comprising the steps of:
the transverse partition plate of the steel box girder closest to the position of the suspension anchor pulling device is provided with the first structure hole for the pull rod to pass through corresponding to the first fixing plate of the first fixing piece;
fixing the pull rod, the first fixing plate and the transverse partition plate of the steel box girder by bolts;
the steel strand penetrates through a second fixing plate of the second fixing piece and is fixed in the second structural hole;
and pulling the steel strand to perform incremental launching construction.
Further, the fixing the positions of the tie rod, the first fixing plate and the diaphragm plate of the steel box girder by bolts further comprises fixing the position of a first auxiliary surface arranged between the first fixing plate and the diaphragm plate of the steel box girder by the tie rod.
Furthermore, a second auxiliary surface for fixing the position of the steel strand is arranged between the steel strand and the second fixing plate.
In the embodiment of the invention, a mode of setting a suspension type anchor puller is adopted, a transverse clapboard of a steel box girder is fixed at a relative position through a first fixing piece, the steel box girder is connected with a steel strand through a second fixing piece and is fixed at the relative position, a bottom plate of the steel box girder is fixed through a fixing groove, the purpose that the steel box girder structure is directly contacted with the steel strand and the force is transmitted between the steel strand and the bottom plate of the steel box girder through the suspension type anchor puller and the bottom plate of the steel box girder is increased, the stress contact area of the steel box girder is increased, the deformation of the steel box girder due to stress concentration in the pushing process is avoided, the time spent in subsequent adjustment of the steel box girder is shortened, the technical effect of shortening the construction period is achieved, the problem that the deformation of the bottom plate due to direct contact with a hoisting instrument in the hoisting process is easily solved, and the later correction work needs to be spent is carried out, the whole construction difficulty is increased and the construction period is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the invention and to make further features, objects, and advantages of the invention apparent. The drawings and their description illustrate exemplary embodiments of the invention and do not limit it inappropriately. In the drawings:
FIG. 1 is a schematic view of the overall structure of a suspended anchor puller according to an embodiment of the present application;
fig. 2 is a schematic view of the application state of the suspension anchor puller according to the embodiment of the application.
Reference numerals
1: a first fixing member; 101: a first fixing plate; 102: a first auxiliary surface; 2: a second fixing member; 201: a second fixing plate; 202: a second auxiliary surface; 3: fixing the groove; 4: a pull rod; 5: a diaphragm plate; 6: a base plate; 7: steel strand wires; 8: a high-strength bolt; 9: the sleeve is squeezed.
Detailed Description
In order to make the person skilled in the art better understand the application scheme of the present invention, the technical solutions in the embodiments of the present invention will be described clearly and completely 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, not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any inventive step based on the embodiments in the present application, shall fall within the scope of protection of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present application are described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.
Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the present application can be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "disposed," "provided," "connected," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meanings of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the drawings.
As shown in fig. 1, the present invention relates to a suspension anchor puller, which comprises a first fixing member 1, a second fixing member 2 and a fixing groove 3, wherein the first fixing member 1 is detachably connected with a diaphragm plate 5 of a steel box girder through a pull rod 4; the second fixing piece 2 is connected with a steel strand 7 for incremental launching construction; the fixing groove 3 is arranged between the first fixing piece 1 and the second fixing piece 2 and used for fixing a bottom plate 6 of the steel box girder;
the first fixing member 1 includes a first fixing plate 101, and the second fixing member 2 includes a second fixing plate 201; the first fixing plate 101 and the diaphragm plate 5 of the steel box girder are correspondingly provided with first structural holes, and the pull rod 4 penetrates through the first fixing plate 101 and the diaphragm plate 5 of the steel box girder through the first structural holes; and a second structural hole for the steel strand 7 to pass through is formed in the second fixing plate 201 of the shuttle tree.
In the preferred embodiment of the present application, two ends of the pull rod 4 are fixed in position by bolts, specifically, the bolts are high-strength bolts 8, and the high-strength bolts 8 are respectively sleeved at the left end and the right end of the pull rod 4; and an extrusion sleeve 9 for fixing the steel strand 7 is arranged on the outer side of the second fixing plate 201.
In a preferred embodiment of the present invention, the first fixing member 1 includes a first auxiliary surface 102, and the first auxiliary surface 102 is disposed on the pull rod 4, between the first fixing plate and the diaphragm plate 5 of the steel box girder, and is fixedly connected to the outer side of the upper inner wall of the fixing groove 3. The second fixing part 2 comprises a second auxiliary surface 202, the second auxiliary surface is sleeved on the steel strand 7, is arranged on one side away from the extrusion sleeve 9, and is fixedly connected with the outer side of the lower inner wall of the fixing groove 3. In a further preferred embodiment, the first auxiliary surface 102 and the second auxiliary surface 202 are oppositely arranged; in other embodiments of the present application, a plurality of the first auxiliary surface 102 and/or the second auxiliary surface 202 is included.
In the preferred embodiment of the present invention, as shown in fig. 2, the suspension anchor is disposed on the bottom plate of the steel box girder, as shown in fig. 1, the suspension anchor of the present invention comprises a first fixing member 1, a second fixing member 2 and a fixing groove 3, the bottom plate 6 is disposed in the fixing groove 3, and the first fixing member 1 and the second fixing member 2 are respectively disposed at the upper and lower sides of the bottom plate 6.
The first fixing member 1 comprises a first fixing plate 101 and two first auxiliary plates 102, the first fixing plate 101 and the two first auxiliary plates 102 are connected with the nearest diaphragm plate 5 of the steel box girder through a pull rod 4, and the first fixing plate 101, the first auxiliary plates 102 and the diaphragm plate 5 are provided with first structural holes which are the same in size and through which the pull rod 4 passes. Other embodiments of the present application include a plurality of sets of tie rods and first structural bores; the tie rod 4 is fixed in the relative positional relationship between the tie rod 4 and the first fixed plate 101, the first auxiliary plate 102, and the diaphragm plate 5 by providing a high-strength bolt 8 at the tip.
The second fixing member 2 is disposed below the bottom plate 6, and includes a second fixing plate 201 and two second auxiliary plates 202, the steel strand 7 passes through second structural holes disposed on the second fixing plate 201 and the two second auxiliary plates 202, and the steel strand 7 is fixed in the second structural holes, in the embodiment of the present invention, the steel strand 7 is fixed in the second structural holes of the second auxiliary plates 202 in front of the second fixing plate 201. In a further preferred embodiment of the present application, the steel strands 7 are in fixed relationship with the large second structural holes of the second fixing plate 201 and the two second auxiliary plates 202.
In order to achieve the above object, according to another aspect of the present application, there is provided a construction method of a suspension type anchor puller.
The construction method of the suspension type anchor pulling device comprises the following steps: the suspended anchor puller as described in any one of the above paragraphs, comprising the steps of:
the transverse partition plate of the steel box girder closest to the position of the suspension anchor pulling device is provided with the first structure hole for the pull rod to pass through corresponding to the first fixing plate of the first fixing piece;
fixing the pull rod, the first fixing plate and the transverse partition plate of the steel box girder by bolts;
the steel strand penetrates through a second fixing plate of the second fixing piece and is fixed in the second structural hole;
and pulling the steel strand to perform incremental launching construction.
In a preferred embodiment of the present invention, the fixing the positions of the tie bar, the first fixing plate, and the diaphragm of the steel box girder by bolts further includes fixing the position of a first auxiliary surface provided between the first fixing plate and the diaphragm of the steel box girder by the tie bar. And a second auxiliary surface for fixing the position of the steel strand is arranged between the steel strand and the second fixing plate.
The suspended anchor pulling device provided by the invention reduces the problem of deformation of the bottom plate in the pushing process, and is suspended at the bottom plate at the tail part of the steel box girder. In short, the anchor pulling device is provided with a round hole at the upper end and the lower end of the separation part of the bottom plate respectively, and a steel strand is penetrated at the lower end of the anchor pulling device for pushing construction; according to the position of the round hole at the upper end of the anchor pulling device, the round hole with the same size is arranged at the position of the transverse clapboard nearest to the tail part, a pull rod is arranged between the two holes, and the two holes are bolted and fixed by a high-strength bolt.
When the movable suspension anchor pulling device is processed, the round holes are arranged above the bottom plate of the anchor pulling device, and the round holes with the same size are formed in the transverse partition plate of the steel box girder closest to the position of the suspension anchor pulling device. Firstly, a suspension type anchor pulling device is installed, then a pull rod is arranged between the diaphragm plate and the anchor pulling device, and the suspension type anchor pulling device is fixed by a high-strength bolt. And finally, fixing the steel strand in a hole of the beam bottom anchor pulling device, and starting pushing construction.
According to the technical scheme, the influence of the stress of the anchor pulling device on the bottom plate in the pushing process is reduced, the bending moment of the anchor pulling device on the bottom plate is balanced, the deformation of the bottom plate is reduced to a great extent, the later-stage correction work is reduced, and the anchor pulling device is simple in main construction method, easy to machine, high in efficiency and the like.
In the embodiment of the invention, a mode of setting a suspension type anchor puller is adopted, a transverse clapboard of a steel box girder is fixed at a relative position through a first fixing piece, the steel box girder is connected with a steel strand through a second fixing piece and is fixed at the relative position, a bottom plate of the steel box girder is fixed through a fixing groove, the purpose that the steel box girder structure is directly contacted with the steel strand and the force is transmitted between the steel strand and the bottom plate of the steel box girder through the suspension type anchor puller and the bottom plate of the steel box girder is increased, the stress contact area of the steel box girder is increased, the deformation of the steel box girder due to stress concentration in the pushing process is avoided, the time spent in subsequent adjustment of the steel box girder is shortened, the technical effect of shortening the construction period is achieved, the problem that the deformation of the bottom plate due to direct contact with a hoisting instrument in the hoisting process is easily solved, and the later correction work needs to be spent is carried out, the whole construction difficulty is increased and the construction period is prolonged.
In the embodiment of the invention, a mode of setting a suspension type anchor puller is adopted, a transverse clapboard of a steel box girder is fixed at a relative position through a first fixing piece, the steel box girder is connected with a steel strand through a second fixing piece and is fixed at the relative position, a bottom plate of the steel box girder is fixed through a fixing groove, the purpose that the steel box girder structure is directly contacted with the steel strand and the force is transmitted between the steel strand and the bottom plate of the steel box girder through the suspension type anchor puller and the bottom plate of the steel box girder is increased, the stress contact area of the steel box girder is increased, the deformation of the steel box girder due to stress concentration in the pushing process is avoided, the time spent in subsequent adjustment of the steel box girder is shortened, the technical effect of shortening the construction period is achieved, the problem that the deformation of the bottom plate due to direct contact with a hoisting instrument in the hoisting process is easily solved, and the later correction work needs to be spent is carried out, the whole construction difficulty is increased and the construction period is prolonged.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A suspended anchor puller, comprising:
the first fixing piece is detachably connected with the diaphragm plate of the steel box girder through a pull rod and comprises a first fixing plate;
the second fixing piece is connected with the steel strand used for pushing construction and comprises a second fixing plate;
the fixing groove is arranged between the first fixing piece and the second fixing piece and used for fixing the bottom plate of the steel box girder;
the first fixing plate and the diaphragm plate of the steel box girder are correspondingly provided with first structural holes, and the pull rod penetrates through the first fixing plate and the diaphragm plate of the steel box girder through the first structural holes; a second structural hole for the steel strand to pass through is formed in the second fixing plate;
the first fixing piece comprises a first auxiliary surface, the first auxiliary surface is sleeved on the pull rod, is arranged between the first fixing plate and the transverse partition plate of the steel box girder and is fixedly connected with the outer side of the inner wall of the upper part of the fixing groove.
2. The hanging tie anchor of claim 1, wherein the tie rod is secured in position at both ends by bolts.
3. The hanging anchor puller according to claim 2, wherein a compression sleeve is provided on an outer side of the second fixing plate for fixing the steel strand.
4. The suspended anchor puller according to claim 3, wherein the second fixing member includes a second auxiliary surface, the second auxiliary surface is sleeved on the steel strand, is arranged on a side away from the extrusion sleeve, and is fixedly connected with the outer side of the lower inner wall of the fixing groove.
5. The hanging anchor of claim 4, wherein the first auxiliary surface and the second auxiliary surface are oppositely disposed.
6. The suspension anchor according to claim 5, comprising a plurality of said first and/or second auxiliary surfaces.
7. A method of constructing a suspension anchor comprising the suspension anchor of any one of claims 1 to 6, the method comprising the steps of:
the transverse partition plate of the steel box girder closest to the position of the suspension anchor pulling device is provided with the first structure hole for the pull rod to pass through corresponding to the first fixing plate of the first fixing piece;
fixing the pull rod, the first fixing plate and the transverse partition plate of the steel box girder by bolts;
the steel strand penetrates through a second fixing plate of the second fixing piece and is fixed in the second structural hole;
and pulling the steel strand to perform incremental launching construction.
8. The method of claim 7, wherein the fixing the tie-rods to the first fixing plate and the diaphragm of the steel box girder by bolts further comprises fixing the position of a first auxiliary surface disposed between the first fixing plate and the diaphragm of the steel box girder by tie-rods.
9. The construction method of the suspension type anchor puller according to any one of claims 7 to 8, wherein a second auxiliary surface for fixing the position of the steel strand is further arranged between the steel strand and the second fixing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330449.XA CN111472286B (en) | 2020-04-23 | 2020-04-23 | Suspension type anchor pulling device and application construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330449.XA CN111472286B (en) | 2020-04-23 | 2020-04-23 | Suspension type anchor pulling device and application construction method thereof |
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| CN111472286A CN111472286A (en) | 2020-07-31 |
| CN111472286B true CN111472286B (en) | 2022-03-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN207143752U (en) * | 2017-09-04 | 2018-03-27 | 中铁十八局集团第二工程有限公司 | Drawing anchor device for steel box-girder incremental launching construction |
| CN108643056A (en) * | 2018-06-25 | 2018-10-12 | 中交路桥建设有限公司 | Complex curve steel box-girder pushing tow drag construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN203247508U (en) * | 2013-02-01 | 2013-10-23 | 黑龙江工程学院 | Bridge prestress anchorage device |
| KR20180074336A (en) * | 2016-12-23 | 2018-07-03 | 주식회사 포스코 | Composite girder of steel box type |
| CN206655136U (en) * | 2017-04-14 | 2017-11-21 | 江苏邦实建设工程有限公司 | A kind of science of bridge building power transmission drawing anchor device |
| CN207686136U (en) * | 2017-12-20 | 2018-08-03 | 山东交通学院 | A kind of steel-concrete composite beam for arranging multidirectional reinforcing bar |
| CN208362938U (en) * | 2018-05-24 | 2019-01-11 | 李伟文 | Science of bridge building power transmission drawing anchor device |
| KR101933673B1 (en) * | 2018-07-27 | 2019-01-02 | 에스오씨기술지주 주식회사 | Reinforcing structure for continuous stpport of steel girder |
| CN209039982U (en) * | 2018-09-26 | 2019-06-28 | 魏丽霞 | A kind of science of bridge building power transmission drawing anchor device |
| CN209907233U (en) * | 2019-04-04 | 2020-01-07 | 徐慧云 | Carbon fiber plate reverse tension prestressed anchorage |
| CN210031456U (en) * | 2019-04-17 | 2020-02-07 | 长沙市公路桥梁建设有限责任公司 | Single-box multi-chamber corrugated steel web box girder suitable for incremental launching bridge |
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2020
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207143752U (en) * | 2017-09-04 | 2018-03-27 | 中铁十八局集团第二工程有限公司 | Drawing anchor device for steel box-girder incremental launching construction |
| CN108643056A (en) * | 2018-06-25 | 2018-10-12 | 中交路桥建设有限公司 | Complex curve steel box-girder pushing tow drag construction method |
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