CN220224978U - Bracket for single pier large cantilever bent cap construction - Google Patents
Bracket for single pier large cantilever bent cap construction Download PDFInfo
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- CN220224978U CN220224978U CN202322304418.9U CN202322304418U CN220224978U CN 220224978 U CN220224978 U CN 220224978U CN 202322304418 U CN202322304418 U CN 202322304418U CN 220224978 U CN220224978 U CN 220224978U
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- 238000010276 construction Methods 0.000 title claims abstract description 38
- 229910000831 Steel Inorganic materials 0.000 claims description 35
- 239000010959 steel Substances 0.000 claims description 35
- 239000004576 sand Substances 0.000 claims description 25
- 238000009434 installation Methods 0.000 abstract 1
- 238000005457 optimization Methods 0.000 description 7
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- 238000010586 diagram Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
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- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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Abstract
The utility model relates to the field of road and bridge bent cap construction, and provides a bracket for single pier large cantilever bent cap construction, which comprises an upper bearing system and a lower bearing system which are symmetrically arranged on a pier column, wherein the upper bearing system is connected with the lower bearing system through an adjusting assembly, the bent cap is horizontally arranged, and a distribution beam is uniformly arranged on the bent cap along the length direction of the pier column; the entablature sets up in spandrel girder below, pier stud both sides set up a lower support beam respectively along pier stud length direction, pier stud both sides set up a set of inboard respectively and erect and prop and a set of outside is erected and prop, the both ends that prop and inboard erect respectively connect entablature and lower support beam, the inboard erects and prop and pier stud in the outside, and the outside erects prop, inboard erects prop and entablature and forms triangle-shaped support, the installation of integral hoisting again after the job site is assembled and is accomplished, a large amount of time and manpower are saved, can accelerate the time limit for a project progress, reduce construction resource's input, save cost.
Description
Technical Field
The utility model relates to the field of road and bridge bent cap construction, in particular to a bracket for single-pier large cantilever bent cap construction.
Background
At present, the China highway bridge enters a high-speed development period, along with the progress and development of technology, the design of the bridge is more innovative, high pier columns and large cantilever capping beams are also generated, and the construction of the corresponding large cantilever capping beams is challenging. The pier column is usually lower than 30 m in height and constructed by adopting a disc buckle support, the disc buckle support is long in mounting and dismounting time period, more labor is input, and the construction cost is increased.
The pier column is higher than 30 m and is generally constructed by adopting a steel pipe pile driving mode to carry out capping beam construction, the steel pipe pile is easily affected by unbalanced load in the construction process, the steel pipe pile is required to be connected at high altitude for many times, great potential safety hazards exist, a scissor support is required to be arranged vertically to increase the rigidity of the steel pipe pile, great materials are input, the construction efficiency is low, and cost saving is not facilitated.
Therefore, aiming at the problems, the bracket for the construction of the single pier large cantilever bent cap is provided to solve the problems.
Disclosure of Invention
Aiming at the defects of the prior art, the bracket for single pier large cantilever bent cap construction is developed, and the bracket is integrally hoisted and installed after the assembly of a construction site is completed, so that a great amount of time and labor are saved, the construction period can be accelerated, the investment of construction resources is reduced, and the cost is saved.
The technical scheme for solving the technical problems is as follows: the utility model provides a bracket for single pier large cantilever bent cap construction, which comprises an upper bearing system and a lower bearing system which are symmetrically arranged on pier columns, wherein the upper bearing system is connected with the lower bearing system through an adjusting component,
the upper bearing system comprises a plurality of distribution beams and a plurality of spandrel girders connected through connecting plates, the spandrel girders are horizontally arranged, and the distribution beams are uniformly arranged on the spandrel girders along the length direction of the pier column;
the lower part bearing system comprises an upper beam, two lower supporting beams, two groups of outer side vertical supports and two groups of inner side vertical supports, the upper beam is arranged below the bearing beam, two lower supporting beams are respectively arranged on two sides of the pier column along the length direction of the pier column, the lower supporting beams are connected with the upper beam through inner side pulling plates, a group of inner side vertical supports and a group of outer side vertical supports are respectively arranged on two sides of the pier column, two ends of the outer side vertical supports and the inner side vertical supports are respectively connected with the upper beam and the lower supporting beams, the inner side vertical supports are arranged between the outer side vertical supports and the pier column, and the outer side vertical supports, the inner side vertical supports and the upper beam form triangular supports.
As optimization, the adjusting component comprises a sand cylinder and an adjusting block, the sand cylinder is connected with the upper cross beam through a sand cylinder connecting hole on the upper cross beam, the adjusting block is arranged at the bottom of the spandrel girder, and the top of the sand cylinder and the bottom of the adjusting block are mutually bolted.
As optimization, shear blocks are arranged at the ends of the upper cross beams, embedded boxes are respectively arranged at the two sides of the pier column along the length direction of the pier column, and the embedded boxes are used for being spliced with the shear blocks.
As optimization, the length, width and height of the embedded box are 8cm larger than the corresponding size of the shear block, and the top of the adjusting block is provided with a gradient which is matched with the gradient of the bent cap.
As optimization, both ends of the upper cross beam are provided with pull rod guide steel pipes, and screw thread steel is arranged in the pull rod guide steel pipes.
As optimization, an outer vertical support connecting hole for bolting an outer vertical support and an inner vertical support connecting hole for bolting an inner vertical support are formed in the upper cross beam.
As optimization, lifting lugs for lifting are arranged on the side face and the top of the upper cross beam.
As optimization, the distribution beam is double-spliced I-steel, and the spandrel girder is H-shaped steel.
The effects provided in the summary of the utility model are merely effects of embodiments, not all effects of the utility model, and the above technical solution has the following advantages or beneficial effects:
1. the embedded box is arranged on the pier body, the shear block is stretched in to bear vertical load, the bracket of the left bracket and the bracket of the right bracket are connected by adopting screw steel to bear horizontal load, and the bracket can be tightly held on the pier column, so that the stress is clear and the force transmission is clear;
2. the supporting beam can be adjusted through the adjusting block and the sand cylinder, so that the bracket can be applied to the construction of cover beams with different gradients, and has adjustable and controllable properties;
3. the bracket can be integrally hoisted and installed after the bracket is assembled on a construction site, so that a great amount of time and labor can be saved, the construction period can be shortened, the investment of construction resources is reduced, and the cost is saved compared with the traditional bent cap construction process.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model.
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
fig. 2 is a schematic structural view of the lower load bearing system of the present utility model;
FIG. 3 is a block diagram of the upper cross member of the present utility model;
FIG. 4 is a connection structure diagram of the lower support beam, the outer vertical support and the inner vertical support of the present utility model;
fig. 5 is a structure diagram showing the connection between the screw steel and the pull rod guiding steel pipe according to the present utility model.
In the figure, 1, a lower supporting beam; 2. the outer side is vertically supported; 3. an inner vertical support; 4. a sand cylinder; 5. an adjusting block; 6. screw thread steel; 7. embedding a box; 8. an inner side pulling plate; 9. an upper cross beam; 10. a spandrel girder; 11. a distribution beam; 12. a connecting plate; 13. lifting lugs; 14. a shear block; 15. a pull rod guides the steel pipe; 16. a sand cylinder connecting hole; 17. a vertical support connecting hole on the inner side; 18. the outer side is vertically provided with a connecting hole.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings. The following disclosure provides many different embodiments, or examples, for implementing different structures of the utility model. In order to simplify the present disclosure, components and arrangements of specific examples are described below. Furthermore, the present utility model may repeat reference numerals and/or letters in the various examples. This repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. It should be noted that the components illustrated in the figures are not necessarily drawn to scale. Descriptions of well-known components and processing techniques and processes are omitted so as to not unnecessarily obscure the present utility model. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like refer to an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not denote or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
As shown in fig. 1 to 5, the bracket for constructing the single pier large cantilever bent cap comprises an upper bearing system and a lower bearing system which are symmetrically arranged on pier columns, wherein the upper bearing system is connected with the lower bearing system through an adjusting component,
the upper bearing system comprises a plurality of distribution beams 11 and a plurality of spandrel girders 10 connected by connecting plates 12, wherein the spandrel girders 10 are transversely perforated at web positions and are connected into a whole by adopting the connecting plates 12 through bolts; the spandrel girder 10 is horizontally arranged, and the distribution beams 11 are uniformly arranged on the spandrel girder 10 along the length direction of the pier column;
the lower part bearing system comprises an upper cross beam 9, two lower support beams 1, two groups of outer side vertical supports 2 and two groups of inner side vertical supports 3, wherein the upper cross beam 9 is arranged below a spandrel girder 10, two sides of a pier column are respectively provided with the lower support beam 1 along the length direction of the pier column, the lower support beam 1 is connected with the upper cross beam 9 through an inner side pulling plate 8, two sides of the pier column are respectively provided with a group of inner side vertical supports 3 and a group of outer side vertical supports 2, two ends of each outer side vertical support 2 and each inner side vertical support 3 are respectively connected with the upper cross beam 9 and the lower support beam 1, each inner side vertical support 3 is arranged between the outer side vertical support 2 and the pier column, and the outer side vertical supports 2, the inner side vertical supports 3 and the upper cross beam 9 form triangular supports.
The bracket can be integrally hoisted and installed after the bracket is assembled on a construction site, so that a great amount of time and labor can be saved, the construction period can be shortened, the investment of construction resources is reduced, and the cost is saved compared with the traditional bent cap construction process.
In the embodiment, the adjusting assembly comprises a sand cylinder 4 and an adjusting block 5, the sand cylinder 4 is connected with the upper cross beam 9 through a sand cylinder connecting hole 16 on the upper cross beam 9, the adjusting block 5 is arranged at the bottom of the spandrel girder 10, the top of the sand cylinder 4 and the bottom of the adjusting block 5 are mutually bolted, and the required height of the sand cylinder 4 can be calculated by measuring the height of the sand cylinder connecting hole 16, the design height of the capping girder bottom plate and the height of the adjusting block 5, so that an adjusting system is formed; the supporting beam 10 can be adjusted through the adjusting block 5 and the sand cylinder 4, so that the bracket can be applied to cover beam construction with different gradients, and has adjustable and controllable properties.
In this embodiment, the entablature 9 tip sets up shear force piece 14, and pier stud both sides set up pre-buried box 7 respectively along pier stud length direction, and pre-buried box 7 is used for pegging graft with shear force piece 14, and after lifting by lifting device the entablature 9, the hoist is to pier stud pre-buried box 7 position, aligns pier stud pre-buried box 7 with shear force piece 14, removes the hoist, inserts shear force piece 14 in pre-buried box 7, through setting up pre-buried box 7 at the pier body, stretches into shear force piece 14, makes it bear vertical load.
The length, width and height of the embedded box 7 are 8cm larger than the corresponding size of the shear block 14, and the top of the adjusting block 5 is provided with a gradient which is matched with the gradient of the bent cap.
In this embodiment, the two ends of the upper beam 9 are both provided with the pull rod guiding steel pipes 15, the pull rod guiding steel pipes 15 are internally provided with the deformed steel bars 6, the diameter of the deformed steel bars 6 is selected to calculate the horizontal tension according to the stress of the bracket brackets, the tensile strength of the deformed steel bars is 1.5 times of the calculated horizontal tension, a certain pretension force is applied, the deformed steel bars 6 penetrate from the pull rod guiding steel pipes 15 on one side and penetrate from the pull rod guiding steel pipes 15 on the other side, then the deformed steel bars penetrate into gaskets, and the deformed steel bars are fastened by finish rolling nuts, so that the lower bearing system is clasped with the pier stud to bear the horizontal load of the bracket brackets, a hoop system is formed, and the bracket brackets on the left and right are connected by adopting the deformed steel bars 6 to bear the horizontal load, so that the bracket is tightly clasped on the pier stud, and the stress is clear and the force transmission is clear.
In this embodiment, the upper cross beam 9 is provided with an outer vertical support connecting hole 18 for bolting the outer vertical support 2 and an inner vertical support connecting hole 17 for bolting the inner vertical support 3.
In this embodiment, the side and top of the upper beam 9 are both provided with lifting lugs 13 for lifting, and the positions of the lifting lugs 13 should be selected at the balance point positions of the bracket brackets.
In this embodiment, the distribution beam 11 is double-spliced i-steel, the spandrel girder 10 is H-steel, and the web plate at the corresponding position where the spandrel girder 10 is connected with the distribution beam 11 may be provided with stiffening ribs.
The specific assembly steps are as follows:
(1) The bracket fittings are processed in a processing plant, a lower support beam 1 is firstly bolted with an inner vertical support 3 and is bolted with an outer vertical support 2 at a construction site, the inner vertical support 3 is bolted with an upper cross beam 9 through an inner vertical support connecting hole 17, the outer vertical support 2 is bolted with the upper cross beam 9 through an outer vertical support connecting hole 18, and the lower support beam 1 is bolted with the upper cross beam 9 through an inner pull plate 8;
(2) Symmetrically lifting the bearing systems at the left and right lower parts of the pier column by adopting two lifting machines through lifting lugs 13, and extending the shear blocks 14 of the left and right upper cross beams 9 into the embedded boxes 7 at the left and right sides of the pier column;
(3) Threading the deformed steel bar 6 from the pull rod guiding steel pipe 15 on one side, threading out from the pull rod guiding steel pipe 15 on the other side, threading into a gasket, and fastening by using a finish rolling nut;
(4) Measuring the height of the sand cylinder connecting hole 16, and calculating the required height of the sand cylinder 4 according to the design height of the capping beam bottom plate, the height of the adjusting block 5 and the height of the sand cylinder connecting hole 16;
(5) After the height of the sand cylinder 4 is determined, the sand cylinder 4 is bolted through a sand cylinder connecting hole 16 of the upper cross beam 9, and the top of the sand cylinder 4 is bolted with the bottom of the adjusting block 5;
(6) The spandrel girder 10 is transversely connected into a whole through a connecting plate 12 by bolts, and is integrally hoisted, and the bottom of the spandrel girder 10 is bolted with the top of the regulating block 5;
(7) The distribution beam 11 is bolted with the spandrel girder 10;
(8) After the bracket is installed, the capping beam bottom plate is placed on the upper part of the distribution beam 11, so that capping beam construction can be performed.
While the foregoing description of the embodiments of the present utility model has been presented with reference to the drawings, it is not intended to limit the scope of the utility model, but rather, it is apparent that various modifications or variations can be made by those skilled in the art without the need for inventive work on the basis of the technical solutions of the present utility model.
Claims (8)
1. Bracket for construction of single pier large cantilever bent cap, which is characterized in that: comprises an upper bearing system and a lower bearing system which are symmetrically arranged on the pier stud, wherein the upper bearing system is connected with the lower bearing system through an adjusting component,
the upper bearing system comprises a plurality of distribution beams (11) and a plurality of spandrel girders (10) connected through connecting plates (12), the spandrel girders (10) are horizontally arranged, and the distribution beams (11) are uniformly arranged on the spandrel girders (10) along the length direction of the pier column;
the lower part bearing system comprises an upper beam (9), two lower supporting beams (1), two groups of outer side vertical supports (2) and two groups of inner side vertical supports (3), wherein the upper beam (9) is arranged below a bearing beam (10), two lower supporting beams (1) are respectively arranged on two sides of a pier column along the length direction of the pier column, the lower supporting beams (1) are connected with the upper beam (9) through inner side pulling plates (8), a group of inner side vertical supports (3) and a group of outer side vertical supports (2) are respectively arranged on two sides of the pier column, two ends of each outer side vertical support (2) and each inner side vertical support (3) are respectively connected with the upper beam (9) and the lower supporting beams (1), the inner side vertical supports (3) are arranged between the outer side vertical supports (2) and the pier column, and the outer side vertical supports (3) and the upper beam (9) form triangular supports.
2. The bracket for single pier large cantilever bent cap construction according to claim 1, wherein: the adjusting component comprises a sand cylinder (4) and an adjusting block (5), the sand cylinder (4) is connected with the upper cross beam (9) through a sand cylinder connecting hole (16) on the upper cross beam (9), the adjusting block (5) is arranged at the bottom of the spandrel girder (10), and the top of the sand cylinder (4) and the bottom of the adjusting block (5) are mutually bolted.
3. The bracket for single pier large cantilever bent cap construction according to claim 1 or 2, wherein: the end part of the upper cross beam (9) is provided with a shear block (14), two sides of the pier column are respectively provided with a pre-buried box (7) along the length direction of the pier column, and the pre-buried box (7) is used for being spliced with the shear block (14).
4. The bracket for single pier large cantilever bent cap construction according to claim 3, wherein: the length, width and height of the embedded box (7) are 8cm larger than the corresponding size of the shear block (14), and the top of the adjusting block (5) is provided with a gradient which is matched with the gradient of the bent cap.
5. The bracket for single pier large cantilever bent cap construction according to claim 1 or 2, wherein: both ends of the upper cross beam (9) are provided with pull rod guide steel pipes (15), and screw thread steel (6) is arranged in the pull rod guide steel pipes (15).
6. The bracket for single pier large cantilever bent cap construction according to claim 1 or 2, wherein: the upper cross beam (9) is provided with an outer vertical support connecting hole (18) for bolting the outer vertical support (2) and an inner vertical support connecting hole (17) for bolting the inner vertical support (3).
7. The bracket for single pier large cantilever bent cap construction according to claim 1 or 2, wherein: lifting lugs (13) for lifting are arranged on the side face and the top of the upper cross beam (9).
8. The bracket for single pier large cantilever bent cap construction according to claim 1 or 2, wherein: the distribution beam (11) is double-spliced I-steel, and the spandrel girder (10) is H-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322304418.9U CN220224978U (en) | 2023-08-28 | 2023-08-28 | Bracket for single pier large cantilever bent cap construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322304418.9U CN220224978U (en) | 2023-08-28 | 2023-08-28 | Bracket for single pier large cantilever bent cap construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220224978U true CN220224978U (en) | 2023-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322304418.9U Active CN220224978U (en) | 2023-08-28 | 2023-08-28 | Bracket for single pier large cantilever bent cap construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220224978U (en) |
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2023
- 2023-08-28 CN CN202322304418.9U patent/CN220224978U/en active Active
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