CN113638319A - Bridge superstructure multi-track translation construction system and construction method thereof - Google Patents
Bridge superstructure multi-track translation construction system and construction method thereof Download PDFInfo
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- CN113638319A CN113638319A CN202110989773.7A CN202110989773A CN113638319A CN 113638319 A CN113638319 A CN 113638319A CN 202110989773 A CN202110989773 A CN 202110989773A CN 113638319 A CN113638319 A CN 113638319A
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- 238000013519 translation Methods 0.000 title claims abstract description 49
- 238000010276 construction Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 239000004576 sand Substances 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000007704 transition Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 6
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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
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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
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Abstract
The invention provides a multi-track translation construction system of a bridge superstructure and a construction method thereof, relating to the technical field of bridge construction, wherein temporary steel piers, slide way beams, slide blocks and pushing mechanisms are arranged; the temporary steel structure piers comprise transition piers and support piers; the transition piers are arranged on one side of the bridge pier column; the supporting piers are respectively arranged on two side edges of the bridge pier stud; the slideway beam is positioned on the temporary steel pier through a sand cylinder support; the slide block is positioned on the slideway beam; the support of the pushing mechanism is positioned on the slideway beam; the traction cable end of the pushing mechanism is connected with the anchor pulling plate at the tail end of the beam body in a positioning way; the beam body is placed on the sliding block through the leveling bracket, and the traction cable of the pushing mechanism drives the beam body to move on the sliding block to the bridge pier column. This application simple structure, and adopt the leveling bracket, carry out horizontal translation with the high completion of beam bottom, solved traditional top and pushed away to copy the pad too high, the atress is too concentrated scheduling problem, has embodied the adaptability to the variable cross-section roof beam, has guaranteed the security of translation process.
Description
Technical Field
The invention relates to the technical field of bridge construction, in particular to a multi-track translation construction system for a bridge superstructure and a construction method thereof.
Background
With the continuous perfection of traffic infrastructure construction, traffic network lines are denser, bridge cross lines are crossed, the construction space of urban bridges is limited, the problems of old bridge removal and displacement and the like are increasingly prominent, great challenges are brought to the construction of bridge superstructure, and the bridge translation and pushing construction technology becomes an important research direction for solving construction under limited conditions.
The upper structure of the bridge is prefabricated or cast outside the bridge position, a slideway and a sliding device are arranged below the bottom surface of the upper structure, the formed upper structure is translated to the corresponding bridge position along a designated route through pushing or dragging equipment such as a jack, a winch and the like, then auxiliary facilities are removed, the upper structure is moved right, and a beam falls into place.
The existing bridge pushing technology mainly aims at longitudinal pushing translation of a bridge, a landing pad pushing mode is often adopted for an upper structure of a variable-height bridge, the defects of overhigh landing pad, concentrated stress and the like exist, and the adaptability to the variable-section bridge is poor. If the bridge translation device which is wider in application range, simple in equipment and easy to operate can be realized, great economic benefits must be brought.
Disclosure of Invention
The invention aims to provide a multi-track translation construction system for a bridge superstructure and a construction method thereof, and aims to solve the technical problems of complex structure and poor adaptability to variable-section bridges in the existing stage of bridge pushing technology.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a multi-track translation construction system for a bridge superstructure comprises a temporary steel pier, a slide way beam, a slide block and a pushing mechanism;
the temporary steel structure piers comprise transition piers and support piers; the transition piers are arranged on one side of the bridge pier column; the supporting piers are respectively arranged on two side edges of the bridge pier stud;
the slideway beam is positioned on the temporary steel pier through a sand cylinder support;
the sliding block is positioned on the slideway beam;
the support of the pushing mechanism is positioned on the slideway beam; the traction cable end of the pushing mechanism is connected with the anchor pulling plate at the tail end of the beam body in a positioning manner; the beam body is placed on the sliding block through the leveling bracket, and the traction cable of the pushing mechanism drives the beam body to move to the bridge pier stud on the sliding block.
As a further improvement of the invention, the slide block is coated with a drag reduction material; and the slideway beam is fixedly connected with the temporary steel pier.
As a further improvement of the invention, the pushing mechanism comprises a plurality of groups of horizontal penetrating jacks fixed on the slideway beam; the punching jack is fixedly arranged on the slideway beam through a positioning block, and the outer end of a steel strand on the punching jack is connected with the anchor pulling plate in a positioning manner, so that the punching jack pulls the beam body on the leveling bracket through the steel strand.
As a further improvement of the invention, the anchor pulling plate is fixedly clamped at the tail end of the beam body; the upper edge of the leveling bracket is attached to the lower edge of the bottom of the beam body; the bottom of the leveling bracket is horizontal.
As a further improvement of the invention, the anchor pulling plate is of an L-shaped plate structure; the anchor pulling plate comprises channel steel, angle steel and embedded parts; one side plate of the angle steel is fixedly connected with the side edge of the lower end of the channel steel to form an L-shaped steel structure; the embedded parts are respectively arranged on the inner side plates of the L-shaped steel structure and are anchored with the beam body through the embedded parts.
As a further improvement of the invention, the leading end of the leveling bracket is also provided with a steel guide beam.
As a further improvement of the invention, two sides of the pushing beam body are provided with transverse movement limiting devices.
As a further improvement of the invention, longitudinal and transverse connections are also arranged between the bridge pier columns and the support piers.
A multi-track translation construction method for a bridge superstructure comprises the following steps:
s1, construction preparation: arranging materials and mechanical equipment required by construction, preparing a beam body to be translated, fixedly welding a pull anchor plate, and installing a leveling bracket and a steel guide beam;
s2, erecting a buttress: constructing corresponding temporary steel piers according to the scheme requirement, installing longitudinal and transverse links among the tubular piles, and installing a sand cylinder support at the top of each tubular pile to form a temporary buttress for dragging and translating;
s3, slide arrangement: welding a slide rail beam on each temporary steel-structured pier, arranging and fixing a center-penetrating jack, and arranging a corresponding sliding block and a transverse movement limiting device;
s4, tensioning ready: according to the estimation of the dragging resistance, selecting a corresponding steel strand, anchoring one end of the steel strand on a pulling anchor plate at the tail end of the beam body, anchoring the other end of the steel strand on a through jack, correcting a jack cylinder, and preparing for tensioning;
s5, dragging and translating: synchronously tensioning the multi-track multi-penetrating jack to enable the stroke of the penetrating jacks to be consistent, horizontally moving the bracket beam body on the slide way, and gradually pushing the bracket beam body to the next temporary steel-structure pier from the previous temporary steel-structure pier, wherein the sliding block is adjusted in the period; if the transverse deviation occurs, a steel wedge and a steel plate are inserted between the transverse movement limiting device and the beam body for transverse limiting, or a longitudinal jack is arranged for deviation correction;
s6, beam falling: after the beam body is inspected comprehensively according to the design center line displacement condition and is qualified, the sand cylinder support is utilized to drop the beam, and the slideway and the temporary steel-structured pier are detached after the beam is dropped.
Compared with the prior art, the invention has the beneficial effects that:
1. this application simple structure, and adopt the leveling bracket, carry out horizontal translation with the high completion of beam bottom, solved traditional top and pushed away to copy the pad too high, the atress is too concentrated scheduling problem, has embodied the adaptability to the variable cross-section roof beam, has guaranteed the security of translation process.
2. The invention can be used for the conventional longitudinal translation of the beam body, can also be used for the transverse translation of the beam body, can be used for the steel beam and the concrete beam, is not limited by the upper structure form, and has wider application range.
3. The multi-track synchronous dragging device adopts multi-track synchronous dragging, disperses the stress of beam anchoring and temporary piers, adopts a plurality of slideways to improve the bending moment of the beam in the translation process, and increases the volume range of the beam capable of translating compared with the traditional pushing.
4. The beam body translation device has the advantages of simple equipment and process required by beam body translation, less one-time investment, capability of adjusting the bracket and the anchor plate structure according to requirements, and the adoption of the form of the leveling bracket is beneficial to saving materials and reducing the weight of the translation body.
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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the present invention in a width-wise configuration;
FIG. 2 is a schematic view of the present invention in a width direction;
FIG. 3 is a schematic view of a lengthwise mounting structure of the present invention;
FIG. 4 is a schematic view of the anchor pulling plate structure of the present invention;
the reference numbers in the figures illustrate:
1. constructing a steel pier; 11. transition piers; 12. supporting piers; 2. a slideway beam; 3. a slider; 4. a pushing mechanism; 41. a center-penetrating jack; 411. steel strand wires; 42. positioning blocks; 5. bridge pier stud; 6. a beam body; 61. pulling the anchor plate; 611. channel steel; 612. angle steel; 613. embedding parts; 7. a leveling bracket; 8. a steel guide beam; 9. a sand cylinder support; 10. longitudinally and transversely connected.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all 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.
The invention provides a multi-track translation construction system for a bridge superstructure and a construction method thereof by combining with attached drawings 1 to 4, and aims to solve the technical problems of complex structure and poor adaptability to variable-section bridges in the existing bridge pushing technology.
Specifically, the multi-track translation construction system for the bridge superstructure comprises a temporary steel pier 1, a slide way beam 2, a slide block 3 and a pushing mechanism 4;
the temporary steel structure pier 1 comprises a transition pier 11 and a support pier 12; the transition piers 11 are arranged on one side of the bridge pier stud 5; the support piers 12 are respectively arranged on two side edges of the bridge pier stud 5;
the slideway beam 2 is positioned on the temporary steel pier 1 through a sand cylinder support 9;
the sliding block 3 is positioned on the slideway beam 2;
the support of the pushing mechanism 4 is positioned on the slideway beam 2; the traction cable end of the pushing mechanism 4 is connected with the anchor pulling plate 61 at the tail end of the beam body 6 in a positioning way; the beam body 6 is placed on the sliding block 3 through the leveling bracket 7, and the traction rope of the pushing mechanism 4 drives the beam body 6 to move on the sliding block 3 to the bridge pier stud 5.
This application simple structure, and adopt the leveling bracket, carry out horizontal translation with the high completion of beam bottom, solved traditional top and pushed away to copy the pad too high, the atress is too concentrated scheduling problem, has embodied the adaptability to the variable cross-section roof beam, has guaranteed the security of translation process.
The invention can be used for conventional longitudinal translation of a beam body, can also be used for transverse translation of the beam body, can be used for a steel beam and a concrete beam, is not limited by the form of an upper structure, and has wider application range.
In one embodiment, the sliding block 3 is coated with a resistance reducing material, so that the sliding of the beam body 6 can be realized to reduce the friction resistance; meanwhile, the slideway beam 2 is fixedly connected with the temporary steel-structure pier 1, and the frictional resistance generated during translation dragging is transferred to the temporary steel-structure pier 1.
In one embodiment, the pushing mechanism 4 comprises a plurality of sets of horizontal through-jacks 41 fixed to the runway beam 2; the center-penetrating jack 41 is fixedly arranged on the slideway beam 2 through a positioning block 42, and the outer end of a steel strand 411 on the center-penetrating jack 41 is connected with the anchor pulling plate 61 in a positioning manner, so that the center-penetrating jack 41 pulls the beam body 6 on the leveling bracket 7 through the steel strand 411.
In one embodiment, the anchor pulling plate 61 is fixedly clamped at the tail end of the beam body 6; the upper edge of the leveling bracket 7 is attached to the lower edge of the bottom of the beam body 6; the bottom of the leveling bracket 7 is horizontal.
It should be noted that each penetrating jack 41 corresponds to one leveling bracket 7, and a plurality of groups of leveling brackets 7 are arranged in the vertical translation direction to jointly bear the upper beam body 6, so that the bottom heights of the translated objects are ensured to be consistent. The leveling bracket 7 is borne on the sliding block 3, and the integral horizontal sliding translation of the bracket is realized through the tension steel strand 411. The leveling bracket 7 can adopt various structural forms such as a filling rod piece, a welding joist, steel beam and concrete leveling and the like. For the girder body 6 with larger dragging span, a multi-section bracket mode can be further adopted, which is beneficial to saving materials and reducing the dragging weight.
Further, the anchor pulling plate 61 is an L-shaped plate structure; the anchor pulling plate 61 comprises a channel steel 611, an angle steel 612 and an embedded part 613; one side plate of the angle steel 612 is fixedly connected with the side edge of the lower end of the channel steel 611, and an L-shaped steel structure is formed; the embedded parts 613 are respectively arranged on the inner side plates of the L-shaped steel structure and anchored with the beam body 6 through the embedded parts 613.
Further, the embedded part 613 is fixedly connected with the concrete box girder on the girder body 6.
In one embodiment, the leading end of the levelling bracket 7 is also provided with a steel guide beam 8.
Specifically, the steel guide beam 8 is a variable cross-section I-shaped plate beam, is connected with the steel guide beam transversely by section steel, and is connected with the leveling bracket 7 through a batten plate bolt.
In one embodiment, the lateral movement limiting devices are arranged on two sides of the pushing beam body 6 to ensure the correct lateral position.
Furthermore, the transverse movement limiting device is a longitudinal jack, the longitudinal jack is positioned at two side edges of the slideway of the beam body 6, and the transverse movement direction of the beam body is adjusted by pushing the beam body 6 in an abutting mode through limiting of the tail end of a piston rod of the longitudinal jack.
Specifically, the longitudinal jack is positioned on the temporary steel pier 1.
In one embodiment, a longitudinal and transverse link 10 is further arranged between the bridge pier stud 5 and the support pier 12; a plurality of groups of supporting piers 12 with front and back two in one group are arranged on two sides of the bridge pier stud 5 or in the translation direction according to requirements, and a sand cylinder support 9 is arranged on the supporting piers to bear horizontal and vertical loads transmitted by the slideway beam 2. According to the length of the support piers 12, the Z-shaped cross-bar connection 10 is correspondingly arranged, integrity between the support piers 12 is guaranteed, stress is stable, and a steel structure is stable.
In one embodiment, a plurality of groups of parallel slideway beams 2 can be arranged in the vertical translation direction to serve as sliding tracks, jacks and sliding blocks 3 are correspondingly arranged on the sliding tracks, and a plurality of steel stranded wires 411 are uniformly dispersed and anchored on the back-pull anchor plate 61, so that multi-track multi-point translation and dispersed stress are realized, and a larger weight beam body 6 can be further translated.
The multi-track synchronous dragging device adopts multi-track synchronous dragging, disperses the stress of beam anchoring and temporary piers, adopts a plurality of slideways to improve the bending moment of the beam in the translation process, and increases the volume range of the beam capable of translating compared with the traditional pushing. It should be noted that the structural form of the corresponding device can be changed appropriately for different upper structures (steel beams, concrete beams) and translation modes (transverse translation, longitudinal translation).
A multi-track translation construction method for a bridge superstructure comprises the following steps:
s1, construction preparation: arranging materials and mechanical equipment required by construction, preparing a beam body 6 to be translated, fixedly welding a pull anchor plate 61, and installing a leveling bracket 7 and a steel guide beam 8;
s2, erecting a buttress: constructing corresponding temporary steel piers 1 according to the scheme requirement, installing cross-ties 10 among the tubular piles, and installing sand cylinder supports 9 at the tops of the tubular piles to form temporary buttresses for dragging and translating;
s3, slide arrangement: welding a slide way beam 2 on each temporary steel-structured pier 1, arranging and fixing a center-penetrating jack 41, and arranging a corresponding sliding block 3 and a transverse movement limiting device;
s4, tensioning ready: according to the estimation of the dragging resistance, selecting a corresponding steel strand 411, anchoring one end of the steel strand on an anchor pulling plate 61 at the tail end of the beam body 6, anchoring the other end of the steel strand on a through jack 41, correcting a through jack cylinder, and preparing for tensioning;
s5, dragging and translating: synchronously tensioning the multi-track multi-penetrating jack 41 to enable the strokes of the penetrating jacks 41 to be consistent, enabling the bracket beam body 6 to horizontally move on the slide way and be gradually pushed to the next temporary steel-structure pier 1 from the previous temporary steel-structure pier 1, and paying attention to the adjusting slide block 3 in the process; if the transverse deviation occurs, a steel wedge and a steel plate are inserted between the transverse movement limiting device and the beam body 6 for transverse limiting, or a longitudinal jack is arranged for deviation correction;
s6, beam falling: after the beam body 6 is inspected comprehensively according to the design center line displacement condition and is qualified, the sand cylinder support 9 is utilized to drop the beam, and the slideway and the temporary steel pier 1 are detached after the beam is dropped.
The beam body 6 of the invention needs simpler equipment and process for translation, the one-time investment is less, the bracket and the anchor plate structure can be adjusted according to the requirement, and the adoption of the form of the leveling bracket 7 is beneficial to saving materials and reducing the weight of the translation body; and overall structure is simple, and the installation simple operation, economical and practical, reasonable in design, compact structure is fit for extensively promoting.
It should be noted that the detailed description of the invention is not included in the prior art, or can be directly obtained from the market, and the detailed connection mode can be widely applied in the field or daily life without creative efforts, and the detailed description is not repeated here.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. The utility model provides a bridge superstructure multi-track translation construction system which characterized in that: the device comprises a temporary steel pier, a slideway beam, a sliding block and a pushing mechanism;
the temporary steel structure piers comprise transition piers and support piers; the transition piers are arranged on one side of the bridge pier column; the supporting piers are respectively arranged on two side edges of the bridge pier stud;
the slideway beam is positioned on the temporary steel pier through a sand cylinder support;
the sliding block is positioned on the slideway beam;
the support of the pushing mechanism is positioned on the slideway beam; the traction cable end of the pushing mechanism is connected with the anchor pulling plate at the tail end of the beam body in a positioning manner; the beam body is placed on the sliding block through the leveling bracket, and the traction cable of the pushing mechanism drives the beam body to move to the bridge pier stud on the sliding block.
2. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: the sliding block is coated with a drag reduction material; and the slideway beam is fixedly connected with the temporary steel pier.
3. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: the pushing mechanism comprises a plurality of groups of horizontal penetrating jacks fixed on the slideway beam; the punching jack is fixedly arranged on the slideway beam through a positioning block, and the outer end of a steel strand on the punching jack is connected with the anchor pulling plate in a positioning manner, so that the punching jack pulls the beam body on the leveling bracket through the steel strand.
4. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: the anchor pulling plate is fixedly clamped at the tail end of the beam body; the upper edge of the leveling bracket is attached to the lower edge of the bottom of the beam body; the bottom of the leveling bracket is horizontal.
5. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: the anchor pulling plate is of an L-shaped plate body structure; the anchor pulling plate comprises channel steel, angle steel and embedded parts; one side plate of the angle steel is fixedly connected with the side edge of the lower end of the channel steel to form an L-shaped steel structure; the embedded parts are respectively arranged on the inner side plates of the L-shaped steel structure and are anchored with the beam body through the embedded parts.
6. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: and the guide end of the leveling bracket is also provided with a steel guide beam.
7. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: and two sides of the pushing beam body are provided with transverse moving limiting devices.
8. The bridge superstructure multi-track translation construction system of claim 1, characterized in that: and longitudinal and transverse connections are also arranged between the bridge pier columns and the support piers.
9. A bridge superstructure multi-track translation construction method, the bridge superstructure multi-track translation construction system according to any one of claims 1 to 8, characterized in that: the method comprises the following steps:
s1, construction preparation: arranging materials and mechanical equipment required by construction, preparing a beam body to be translated, fixedly welding a pull anchor plate, and installing a leveling bracket and a steel guide beam;
s2, erecting a buttress: constructing corresponding temporary steel piers according to the scheme requirement, installing longitudinal and transverse links among the tubular piles, and installing a sand cylinder support at the top of each tubular pile to form a temporary buttress for dragging and translating;
s3, slide arrangement: welding a slide rail beam on each temporary steel-structured pier, arranging and fixing a center-penetrating jack, and arranging a corresponding sliding block and a transverse movement limiting device;
s4, tensioning ready: according to the estimation of the dragging resistance, selecting a corresponding steel strand, anchoring one end of the steel strand on a pulling anchor plate at the tail end of the beam body, anchoring the other end of the steel strand on a through jack, correcting a jack cylinder, and preparing for tensioning;
s5, dragging and translating: synchronously tensioning the multi-track multi-penetrating jack to enable the stroke of the penetrating jacks to be consistent, horizontally moving the bracket beam body on the slide way, and gradually pushing the bracket beam body to the next temporary steel-structure pier from the previous temporary steel-structure pier, wherein the sliding block is adjusted in the period; if the transverse deviation occurs, a steel wedge and a steel plate are inserted between the transverse movement limiting device and the beam body for transverse limiting, or a longitudinal jack is arranged for deviation correction;
s6, beam falling: after the beam body is inspected comprehensively according to the design center line displacement condition and is qualified, the sand cylinder support is utilized to drop the beam, and the slideway and the temporary steel-structured pier are detached after the beam is dropped.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120049201A (en) * | 2012-04-03 | 2012-05-16 | 원대연 | Incremental launching method for the prestressed composite truss girder and its temporary support system |
| CN202644411U (en) * | 2012-05-18 | 2013-01-02 | 科达集团股份有限公司 | Construction device for erecting precast beam through slipping method |
| CN209907227U (en) * | 2019-04-29 | 2020-01-07 | 广西路桥工程集团有限公司 | Girder steel high altitude long distance top pushes away slide device |
| CN111733703A (en) * | 2020-07-02 | 2020-10-02 | 中国建筑第八工程局有限公司 | Accumulated dragging and pushing construction mechanism for bridge structure and construction method thereof |
| CN213740605U (en) * | 2020-09-24 | 2021-07-20 | 武汉思力特种工程机械施工有限公司 | Variable cross section bridge pushes away construction and uses leveling bracket |
| CN215629447U (en) * | 2021-08-26 | 2022-01-25 | 安徽省路桥工程集团有限责任公司 | Bridge superstructure multi-track translation construction system |
-
2021
- 2021-08-26 CN CN202110989773.7A patent/CN113638319A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120049201A (en) * | 2012-04-03 | 2012-05-16 | 원대연 | Incremental launching method for the prestressed composite truss girder and its temporary support system |
| CN202644411U (en) * | 2012-05-18 | 2013-01-02 | 科达集团股份有限公司 | Construction device for erecting precast beam through slipping method |
| CN209907227U (en) * | 2019-04-29 | 2020-01-07 | 广西路桥工程集团有限公司 | Girder steel high altitude long distance top pushes away slide device |
| CN111733703A (en) * | 2020-07-02 | 2020-10-02 | 中国建筑第八工程局有限公司 | Accumulated dragging and pushing construction mechanism for bridge structure and construction method thereof |
| CN213740605U (en) * | 2020-09-24 | 2021-07-20 | 武汉思力特种工程机械施工有限公司 | Variable cross section bridge pushes away construction and uses leveling bracket |
| CN215629447U (en) * | 2021-08-26 | 2022-01-25 | 安徽省路桥工程集团有限责任公司 | Bridge superstructure multi-track translation construction system |
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