CN108797380B - Suspension construction device and construction method for suspension irrigation continuous beam bracket - Google Patents
Suspension construction device and construction method for suspension irrigation continuous beam bracket Download PDFInfo
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- CN108797380B CN108797380B CN201810570368.XA CN201810570368A CN108797380B CN 108797380 B CN108797380 B CN 108797380B CN 201810570368 A CN201810570368 A CN 201810570368A CN 108797380 B CN108797380 B CN 108797380B
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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
- E01D21/10—Cantilevered erection
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Abstract
The invention relates to a suspension construction device and a suspension construction method for a suspension irrigation continuous beam bracket. The method comprises the following steps of S1: constructing and installing support brackets on two sides of the pier body, and arranging a formwork assembly on the support brackets; s2: arranging a steel bar and a template on the template assembly, arranging a pre-buried bracket in a first block beam construction area, and pouring concrete; s3, mounting a stiffening component to finish stiffening; s4: arranging steel bars and a template, and pouring concrete; s5: and unloading the stiffening assembly and the support bracket, and continuing the construction of the rear-section block beam body until the full-bridge cantilever filling stage is completed. The hanging basket has the advantages of low construction cost, strong adaptability and capability of improving the turnover frequency of the hanging basket.
Description
Technical Field
The invention mainly relates to a construction technology of a suspension irrigation large-span continuous beam, in particular to a suspension construction device and a construction method of a suspension irrigation continuous beam bracket.
Background
For the cantilever-grouting large-span continuous beam constructed by high piers, the volume and the self weight of the segment are large. If a bracket structure is adopted, due to the limitation of the bearing capacity of the structure, the second block beam body is difficult to continue to be constructed by utilizing the bracket on the basis of the first block beam body which is poured; if the floor support structure is adopted, the construction support platform for building the second block beam body is high in cost due to the fact that the pier is high. If the length of the first block beam body cannot meet the requirement that the hanging baskets on the two sides are placed at the same time, the connected hanging baskets are often required to be redesigned and machined, the turnover rate of the equipment is greatly reduced, and the construction cost is also greatly increased.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a suspension construction device and a suspension construction method for a suspension irrigation continuous beam bracket, which have the advantages of low construction cost and strong adaptability, can improve the turnover times of a suspension basket and can avoid the construction of a tall and big bracket.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a hang and irritate continuous beam bracket and suspend construction equipment in midair, includes a pair of support bracket, should establish respectively in pier shaft both sides and be connected with the pier shaft to the support bracket, each support bracket top all is provided with template assembly, each template assembly extends to the side end face of the at least No. second block roof beam body of this side to corresponding side, still includes pre-buried bracket, pre-buried bracket one end is pre-buried in No. first block roof beam body, and the other end extends to the side end face outside of the No. second block roof beam body of this side to corresponding side, is equipped with stiffening assembly between each pre-buried bracket and the support bracket.
As a further improvement of the above technical solution:
the support bracket comprises a plurality of support flat rods connected to the lateral part of the pier body, each support flat rod is positioned on the same horizontal plane and arranged at intervals, and a support inclined rod is connected between each support flat rod and the lateral part of the pier body.
The inner of supporting the flat bar is equipped with flat support anchor socket, flat support anchor socket anchor joint is at pier shaft lateral part, it is equipped with the bearing diagonal anchor socket to support the down tube bottom, bearing diagonal anchor socket anchor joint is at pier shaft lateral part.
And the supporting flat rods are connected with a cross beam together, and the supporting inclined rods are connected with a flat link rod together.
The formwork assembly comprises distribution beams, steel flower stands and formworks, the distribution beams are paved on the tops of the supporting flat rods of the corresponding sides, the steel flower stands are installed on the distribution beams of the corresponding sides, and the formworks are paved on the steel flower stands of the corresponding sides and extend to the side end faces of at least second block beam bodies of the corresponding sides.
The embedded bracket comprises a plurality of embedded flat rods, one end of each embedded flat rod is embedded in the first block beam body, the other end of each embedded flat rod extends to the outside of the side end face of the second block beam body on the corresponding side, each embedded flat rod is located on the same horizontal plane and arranged at intervals, and an embedded inclined rod is connected between each embedded flat rod and the side part of the first block beam body.
The inner of pre-buried flat bar is equipped with flat pre-buried anchor socket, flat pre-buried anchor socket is pre-buried at the lateral part of the first number piece roof beam body, pre-buried down tube bottom is equipped with oblique pre-buried anchor socket, oblique pre-buried anchor socket is pre-buried at the lateral part of the first number piece roof beam body.
The stiffening assembly comprises a lifting rod and a lifting seat, the lifting seat is arranged at the extending end of the embedded flat rod, one end of the lifting rod is connected with the cross beam, and the other end of the lifting rod is connected with the lifting seat.
A suspension construction method of a suspension irrigation continuous beam bracket is carried out by using the suspension construction device of the suspension irrigation continuous beam bracket, and comprises the following steps:
s1: constructing and installing support brackets on two side parts of the pier body, arranging a template assembly on the support brackets, and extending the template assembly to the corresponding side to the side end surface of at least a second block beam body on the side;
s2: arranging a steel bar and a template in a first block beam construction area on the template assembly, arranging a pre-buried bracket in the first block beam construction area, and pouring concrete in the first block beam construction area;
s3: installing a stiffening assembly to enable the pre-buried bracket and the support bracket to be actively stressed to finish stiffening;
s4: arranging reinforcing steel bars and a template in a second block beam construction area on the stiffened template assembly, and pouring concrete in the second block beam construction area to pour the embedded bracket into the second block beam construction area;
s5: and unloading the stiffening assembly and the support bracket, and continuing construction of the rear-section block beam body by taking the first block beam body and the second block beam body as the basis until the full-bridge cantilever filling stage is completed.
As a further improvement of the above technical solution:
in step S5, a cradle is installed on the basis of the first block girder and the second block girder, and the cradle is used to fill the block girder at the rear end of the construction.
Compared with the prior art, the invention has the advantages that:
the invention relates to a suspension construction device for a suspension irrigation continuous beam bracket, which is characterized in that during construction, support brackets are firstly constructed and installed at two side parts of a pier body, a template assembly is arranged on each support bracket, and the template assembly extends to the side end face of at least a second block beam body at the corresponding side; arranging a steel bar and a template in a first block beam construction area on the template assembly, arranging a pre-buried bracket in the first block beam construction area, and pouring concrete in the first block beam construction area; then installing a stiffening component to enable the pre-buried bracket and the support bracket to be actively stressed to finish stiffening; arranging reinforcing steel bars and a template in a second block beam construction area on the stiffened template assembly, and pouring concrete in the second block beam construction area to pour the embedded bracket into the second block beam construction area; and finally, unloading the stiffening assembly and the support bracket, and continuing construction of the rear-section block beam body by taking the first block beam body and the second block beam body as a foundation until the full-bridge cantilever filling stage is completed. Compared with the traditional structure, the invention utilizes the existing pier body as a foundation, the support bracket is arranged as a support structure and a template component to facilitate the construction of the first block beam body, the first block beam body is used as the support structure, the web plate is provided with the embedded bracket, the stiffening component is arranged as the support bracket and the embedded bracket to stiffen and improve the bearing capacity of the support bracket and the embedded bracket so as to continue to construct the second block beam body on the template component, and after the second block beam body is constructed, the beam top has enough space to install the hanging basket, so that the subsequent section construction cycle can be normally carried out. The invention can greatly improve the adaptability of the length of the section of the continuous beam structure for the hanging basket model, improve the turnover times of the hanging basket, avoid the construction of tall and big supports, greatly save the construction cost and have good economic benefit. The suspension construction method of the suspension irrigation continuous beam bracket is carried out by adopting the suspension construction device of the suspension irrigation continuous beam bracket, so that the suspension construction method of the suspension irrigation continuous beam bracket has the corresponding technical effects of the suspension construction device of the suspension irrigation continuous beam bracket.
Drawings
Fig. 1 is a front view schematically showing the construction of the continuous beam bracket suspension construction device for suspension irrigation according to the present invention (in a state where the support bracket and the formwork assembly are installed).
Fig. 2 is a side view of the structure of fig. 1.
Fig. 3 is a front view schematically showing the construction of the continuous beam bracket suspension apparatus for suspension irrigation according to the present invention (in a state where the support bracket, the formwork assembly and the embedment bracket are installed).
Fig. 4 is a side view of the structure of fig. 3.
Fig. 5 is a front view schematically showing the construction of the continuous beam bracket suspension apparatus for suspension irrigation according to the present invention (in the state where the support bracket, the formwork assembly, the embedment bracket and the stiffening assembly are installed).
Fig. 6 is a side view of the structure of fig. 5.
Fig. 7 is a front view schematically showing the construction of the continuous beam bracket suspension apparatus for suspension irrigation according to the present invention (in a state where the support bracket, the formwork assembly, the embedment bracket, the stiffening assembly and the cradle are installed).
The reference numerals in the figures denote:
1. a support bracket; 11. a support flat bar; 111. a flat support anchor seat; 12. supporting the diagonal rods; 121. an inclined support anchor seat; 13. a cross beam; 14. a flat link; 2. a template assembly; 21. a distribution beam; 22. a steel flower stand; 23. a template; 3. pre-burying a bracket; 31. pre-burying a flat rod; 311. flatly embedding an anchor seat; 32. pre-burying an inclined rod; 321. obliquely embedding an anchor seat; 4. a stiffening assembly; 41. a boom; 42. a jacking seat; 5. and (5) hanging a basket.
Detailed Description
The invention will be described in further detail below with reference to the drawings and specific examples.
Fig. 1 to 7 show an embodiment of a suspension construction device for a suspension-irrigation continuous beam bracket according to the present invention, the construction device includes a pair of support brackets 1, the pair of support brackets 1 are respectively disposed on both sides of a pier body and connected to the pier body, a formwork assembly 2 is disposed on the top of each support bracket 1, each formwork assembly 2 extends to a corresponding side to a side end surface of at least a second block beam body of the side, the construction device further includes a pre-embedded bracket 3, one end of the pre-embedded bracket 3 is pre-embedded in the first block beam body, the other end extends to the outside of the side end surface of the second block beam body of the side to the corresponding side, and a stiffening assembly 4 is disposed between each pre-embedded bracket 3 and the support bracket 1. During construction, firstly, constructing and installing support brackets 1 at two sides of a pier body, arranging template components 2 on the support brackets 1, and extending the template components 2 to the corresponding side to the side end face of at least a second block beam body at the side; arranging reinforcing steel bars and a template in a first block beam construction area on the template assembly 2, arranging a pre-buried bracket 3 in the first block beam construction area, and pouring concrete in the first block beam construction area; then installing a stiffening component 4 to enable the pre-buried bracket 3 and the support bracket 1 to be actively stressed to finish stiffening; arranging reinforcing steel bars and a template in a second block beam construction area on the stiffened template assembly 2, and pouring concrete in the second block beam construction area to pour the embedded bracket 3 into the second block beam construction area; and finally, unloading the stiffening component 4 and the support bracket 1, and continuing construction of the rear-section block beam body by taking the first block beam body and the second block beam body as the basis until the full-bridge cantilever filling stage is completed. Compared with the traditional structure, the invention utilizes the existing pier body as a foundation, the support bracket 1 is arranged as a support structure and the template component 2 to be beneficial to the construction of the first block beam body, the first block beam body is used as the support structure, the web plate is provided with the embedded bracket 3, the stiffening component 4 is arranged to stiffen the support bracket 1 and the embedded bracket 3 to improve the bearing capacity of the second block beam body so as to continue to construct the second block beam body on the template component 2, and after the second block beam body is constructed, the beam top has enough space to install the cradle 5, so that the subsequent segment construction cycle can be normally carried out. The invention can greatly improve the adaptability of the length of the section of the continuous beam structure for the hanging and irrigating to the model of the hanging basket 5, improve the turnover times of the hanging basket 5, avoid the construction of tall and big supports, greatly save the construction cost and have good economic benefit.
In this embodiment, the support bracket 1 includes a plurality of support flat bars 11 connected at the pier body side, each support flat bar 11 is located same horizontal plane and is interval arrangement, is connected with between each support flat bar 11 and the pier body side and supports the down tube 12. In the structure, a plurality of triangular support units which are parallel and spaced are formed by the plurality of supporting flat rods 11, the supporting inclined rods 12 and the pier body, and the structure is stable and reliable.
In this embodiment, the inner end of the support flat rod 11 is provided with a flat support anchor base 111, the flat support anchor base 111 is anchored at the side of the pier body, the bottom end of the support diagonal rod 12 is provided with an inclined support anchor base 121, and the inclined support anchor base 121 is anchored at the side of the pier body. The flat support anchor 111 and the diagonal support anchor 121 are embedded in advance during construction, so that the convenience and the stability of installation are further improved.
In this embodiment, the horizontal support rods 11 are connected to a cross beam 13, and the inclined support rods 12 are connected to a horizontal link rod 14. The arrangement of the cross beam 13 and the flat link 14 can ensure the uniformity of each triangular support unit, and an integral support structure is formed.
In this embodiment, the formwork assembly 2 includes a distribution beam 21, a steel flower frame 22, and a formwork 23, the distribution beam 21 is laid on top of the support flat bar 11 on the corresponding side, the steel flower frame 22 is mounted on the distribution beam 21 on the corresponding side, and the formwork 23 is laid on the steel flower frame 22 on the corresponding side and extends to the side end face of at least the second block girder body of the corresponding side. The combination of the distribution beam 21, the steel flower frame 22 and the template 23 is convenient for subsequent pouring construction.
In this embodiment, pre-buried bracket 3 includes many pre-buried tie rods 31, and each pre-buried tie rod 31 one end is pre-buried in the first number of block roof beam body, and the other end extends to the side end face outside of the second number of block roof beam body of this side to corresponding side, and each pre-buried tie rod 31 is located same horizontal plane and is interval arrangement, is connected with pre-buried down tube 32 between each pre-buried tie rod 31 and the first number of block roof beam body lateral part. In this structure, utilize a plurality of pre-buried flat poles 31, pre-buried down tube 32 and pier shaft to form a plurality of parallel spaced triangular supports unit, its stable in structure is reliable.
In this embodiment, the inner end of the embedded flat rod 31 is provided with a flat embedded anchor seat 311, the flat embedded anchor seat 311 is embedded in the side portion of the first block beam body, the bottom end of the embedded diagonal rod 32 is provided with an oblique embedded anchor seat 321, and the oblique embedded anchor seat 321 is embedded in the side portion of the first block beam body. The flat embedded anchor 311 and the inclined embedded anchor 321 are embedded in advance during construction, so that the convenience and the stability of installation are further improved.
In this embodiment, the stiffening assembly 4 includes a boom 41 and a jacking seat 42, the jacking seat 42 is installed at the end that stretches out of pre-buried tie rod 31, boom 41 one end is connected with crossbeam 13, the other end is connected with jacking seat 42. In this structure, make jib 41 tensile in order to guarantee the stiffening power between pre-buried flat bar 31 and the crossbeam 13 through the lift of control jacking seat 42 to guarantee the bearing capacity of support bracket 1 and pre-buried bracket 3 and continue to execute No. two block roof beam bodies on template component 2.
The invention discloses an embodiment of a suspension construction method of a suspension irrigation continuous beam bracket, which is carried out by using the suspension construction device of the suspension irrigation continuous beam bracket, and comprises the following steps:
s1: constructing and installing support brackets 1 at two side parts of a pier body, arranging template assemblies 2 on the support brackets 1, and extending the template assemblies 2 to the corresponding side to the side end surface of at least a second block girder body at the side;
s2: arranging a steel bar and a template in a first block beam construction area on the template assembly 2, arranging a pre-buried bracket 3 in the first block beam construction area, and pouring concrete in the first block beam construction area;
s3: installing a stiffening component 4 to enable the pre-buried bracket 3 and the support bracket 1 to be actively stressed to finish stiffening;
s4: arranging reinforcing steel bars and a template in a second block beam construction area on the stiffened template assembly 2, and pouring concrete in the second block beam construction area to pour the embedded bracket 3 into the second block beam construction area;
s5: and unloading the stiffening component 4 and the support bracket 1, and continuing construction of the rear-section block beam body by taking the first block beam body and the second block beam body as the basis until the full-bridge cantilever filling stage is completed.
Compared with the traditional method, the method is based on the existing pier body, the support bracket 1 is arranged as a support structure and the template component 2 to facilitate the construction of the first block beam body, the first block beam body is used as the support structure, the pre-embedded bracket 3 is arranged on the web plate, the stiffening component 4 is arranged to stiffen the support bracket 1 and the pre-embedded bracket 3 to improve the bearing capacity of the pre-embedded bracket 3 so as to continue to construct the second block beam body on the template component 2, and after the second block beam body is constructed, the beam top has enough space to install the cradle 5, so that the subsequent section construction cycle can be normally carried out. The invention can avoid the construction of a tall and big bracket, greatly saves the construction cost and has good economic benefit.
In this embodiment, in step S5, the cradle 5 is installed on the basis of the first block girder and the second block girder, and the cradle 5 is used to suspend and fill the rear block girder. The method greatly improves the adaptability of the length of the section of the continuous beam structure for the hanging and irrigating to the model of the hanging basket 5, and improves the turnover frequency of the hanging basket 5.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make numerous possible variations and modifications to the present invention, or modify equivalent embodiments to equivalent variations, without departing from the scope of the invention, using the teachings disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (9)
1. A suspension construction method of a suspension-irrigation continuous beam bracket is carried out by using a suspension construction device of the suspension-irrigation continuous beam bracket, and is characterized in that: the suspension irrigation continuous beam bracket suspension construction device comprises a pair of support brackets (1), the pair of support brackets (1) are respectively arranged on two sides of a pier body and connected with the pier body, a template component (2) is arranged at the top of each support bracket (1), each template component (2) extends to the corresponding side to the side end face of at least a second block beam body on the side, the suspension irrigation continuous beam bracket suspension construction device further comprises a pre-embedded bracket (3), one end of the pre-embedded bracket (3) is pre-embedded in the first block beam body, the other end of the pre-embedded bracket (3) extends to the outside of the side end face of the second block beam body on the corresponding side, a stiffening component (4) is arranged between each pre-embedded bracket (3) and each support bracket (1), and the construction method comprises the following:
s1: constructing and installing support brackets (1) at two side parts of the pier body, arranging a template assembly (2) on the support brackets (1), and extending the template assembly (2) to the corresponding side to the side end surface of at least a second block girder body at the side;
s2: arranging a steel bar and a template in a first block beam construction area on the template assembly (2), arranging a pre-buried bracket (3) in the first block beam construction area, and pouring concrete in the first block beam construction area;
s3, mounting a stiffening component (4) to enable the pre-buried bracket (3) and the support bracket (1) to be actively stressed to finish stiffening;
s4: arranging reinforcing steel bars and a template in a second block beam construction area on the stiffened template assembly (2), and pouring concrete in the second block beam construction area to pour the embedded bracket (3) into the second block beam construction area;
s5: unloading the stiffening component (4) and the support bracket (1), and continuing construction of the rear block beam body on the basis of the first block beam body and the second block beam body until the full-bridge cantilever filling stage is completed.
2. The suspension irrigation continuous beam bracket suspension construction method according to claim 1, characterized in that: support bracket (1) including many support flat bar (11) of connecting at pier shaft lateral part, each support flat bar (11) is located same horizontal plane and is the interval arrangement, is connected with between each support flat bar (11) and the pier shaft lateral part and supports down tube (12).
3. The suspension irrigation continuous beam bracket suspension construction method according to claim 2, characterized in that: the inner of supporting flat pole (11) is equipped with flat support anchor socket (111), flat support anchor socket (111) anchor joint is at pier shaft lateral part, it is equipped with bearing diagonal anchor socket (121) to support down tube (12) bottom, bearing diagonal anchor socket (121) anchor joint is at pier shaft lateral part.
4. The suspension irrigation continuous beam bracket suspension construction method according to claim 3, characterized in that: the supporting flat rods (11) are connected with a cross beam (13) together, and the supporting inclined rods (12) are connected with a flat connecting rod (14) together.
5. The suspension irrigation continuous beam bracket suspension construction method according to any one of claims 2 to 4, wherein: the formwork assembly (2) comprises distribution beams (21), steel flower stands (22) and formworks (23), the distribution beams (21) are paved on the tops of the supporting flat rods (11) on the corresponding sides, the steel flower stands (22) are installed on the distribution beams (21) on the corresponding sides, and the formworks (23) are paved on the steel flower stands (22) on the corresponding sides and extend to the corresponding sides to the side end faces of at least second number of block beam bodies on the sides.
6. The suspension irrigation continuous beam bracket suspension construction method according to any one of claims 2 to 4, wherein: the embedded bracket (3) comprises a plurality of embedded flat rods (31), one end of each embedded flat rod (31) is embedded in a first block beam body, the other end of each embedded flat rod extends to the outside of the side end face of a second block beam body on the corresponding side, each embedded flat rod (31) is located on the same horizontal plane and is arranged at intervals, and an embedded inclined rod (32) is connected between each embedded flat rod (31) and the side part of the first block beam body.
7. The suspension irrigation continuous beam bracket suspension construction method according to claim 6, characterized in that: the inner of pre-buried flat bar (31) is equipped with flat pre-buried anchor (311), flat pre-buried anchor (311) is pre-buried at the lateral part of the first number piece roof beam body, pre-buried down tube (32) bottom is equipped with oblique pre-buried anchor (321), oblique pre-buried anchor (321) is pre-buried at the lateral part of the first number piece roof beam body.
8. The suspension irrigation continuous beam bracket suspension construction method according to claim 7, characterized in that: the stiffening assembly (4) comprises a lifting rod (41) and a lifting seat (42), the lifting seat (42) is arranged at the extending end of the embedded flat rod (31), one end of the lifting rod (41) is connected with the cross beam (13), and the other end of the lifting rod is connected with the lifting seat (42).
9. The suspension irrigation continuous beam bracket suspension construction method according to claim 1, characterized in that: in step S5, a cradle (5) is installed on the basis of the first block girder and the second block girder, and the second block girder is suspended and poured by the cradle (5).
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| CN201810570368.XA CN108797380B (en) | 2018-06-05 | 2018-06-05 | Suspension construction device and construction method for suspension irrigation continuous beam bracket |
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| CN201810570368.XA CN108797380B (en) | 2018-06-05 | 2018-06-05 | Suspension construction device and construction method for suspension irrigation continuous beam bracket |
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| CN108797380B true CN108797380B (en) | 2020-04-24 |
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| CN109356035A (en) * | 2018-11-26 | 2019-02-19 | 中铁六局集团有限公司 | A kind of bracket, bridge pier and construction method |
| CN109267496A (en) * | 2018-11-26 | 2019-01-25 | 中铁六局集团有限公司 | Framed bent and bracket |
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| JP4569878B2 (en) * | 2006-08-07 | 2010-10-27 | 清水建設株式会社 | Bridge girder construction method |
| CN203188589U (en) * | 2013-04-15 | 2013-09-11 | 张增娟 | Rigid-frame continuous beam zero block construction bracket supporting system |
| KR101587400B1 (en) * | 2015-07-29 | 2016-02-02 | 신성구조이엔지 주식회사 | For any mold of construction for an extension of Bridge Deck |
| CN106284085B (en) * | 2016-08-28 | 2018-06-01 | 中铁二十局集团第一工程有限公司 | It is close to both wired deep water foundation Large-Span Continuous beam construction methods |
| CN207159834U (en) * | 2017-09-12 | 2018-03-30 | 中铁十二局集团第四工程有限公司 | A kind of device of constructing continuous beam end bay Cast-in-Situ Segment |
| CN207143755U (en) * | 2017-09-14 | 2018-03-27 | 中铁十一局集团有限公司勘察设计院 | A kind of adjustable bracket for No. 0 block of bridge pier |
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