CN219710034U - Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section - Google Patents
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section Download PDFInfo
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- CN219710034U CN219710034U CN202320795167.6U CN202320795167U CN219710034U CN 219710034 U CN219710034 U CN 219710034U CN 202320795167 U CN202320795167 U CN 202320795167U CN 219710034 U CN219710034 U CN 219710034U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 67
- 239000010959 steel Substances 0.000 title claims abstract description 67
- 238000009434 installation Methods 0.000 title claims description 17
- 239000002131 composite material Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000004804 winding Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000002427 irreversible effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
The utility model relates to a tool for matching and installing flange plates between sections of a steel truss concrete combined arch bridge, which comprises a steel skeleton and a rotating structure; the steel skeleton is of a rectangular frame structure, and a group of rotating structures are installed on the upper side and the lower side of the steel skeleton in a matched mode; each group of rotating structures consists of a flange connecting plate and a pair of flange plates; the pair of flange plates are parallel to each other and are symmetrically and fixedly arranged at two ends of the flange connecting plate in a matching way; the middle part of the flange connecting plate is hinged with the steel winding framework in a matching way, so that the whole rotating structure can rotate around the steel winding framework. The flange plate assembly device is reasonable in structural design, stable and simple in structure and high in practicability, can obviously reduce the mounting difficulty of the flange plate of the discontinuous matching section, overcomes the problem of mounting the flange plate without continuous matching between the sections caused by narrow fields and other reasons, and can obviously improve the total splicing efficiency of the hoisting sections.
Description
Technical Field
The utility model belongs to the technical field of steel truss concrete combined arch bridge installation engineering, and particularly relates to a tool for matching and installing flanges between sections of a steel truss concrete combined arch bridge.
Background
The application practice of the steel truss concrete combined arch bridge in China is still in a starting stage, the manufacturing research of the bridge in the structural form is also gradually developed, and in order to meet the requirement of hoisting a large section of the steel truss concrete combined arch bridge, the hoisting section is required to be assembled in the bridge site, but because the steel truss concrete combined arch bridge can generate irreversible deformation after concrete is poured, the flange matching precision between discontinuous matching sections cannot be ensured, and the total assembling efficiency and quality of the hoisting section are seriously influenced.
Disclosure of Invention
Aiming at the technical problems in the background technology, the utility model provides the tool for matching and installing the flanges between the sections of the steel truss concrete combined arch bridge, which has the advantages of reasonable structural design, stable and simple structure and strong practicability, can obviously reduce the installation difficulty of the flanges of the discontinuous matching sections, overcome the installation problem of the flanges without continuous matching between the sections caused by narrow fields and other reasons, and can obviously improve the total splicing efficiency and quality of the hoisting sections.
The technical scheme of the utility model is as follows:
the tooling for matching and installing the flange plates between the sections of the steel truss concrete combined arch bridge comprises a steel skeleton and a rotating structure; the steel skeleton is of a rectangular frame structure, and a group of rotating structures are installed on the upper side and the lower side of the steel skeleton in a matched mode; each group of rotating structures consists of a flange connecting plate and a pair of flange plates; the pair of flange plates are parallel to each other and are symmetrically and fixedly arranged at two ends of the flange connecting plate in a matching way; the middle part of the flange connecting plate is hinged with the steel winding framework in a matching way, so that the whole rotating structure can rotate around the steel winding framework.
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, wherein: the steel skeleton comprises a vertical rod and a transverse supporting rod; the vertical rods are a pair of vertical and symmetrical; the transverse supporting rods are also provided with a pair of transverse supporting rods and are respectively and horizontally connected between the upper ends and the lower ends of the pair of vertical rods in a matching way; the pair of vertical rods and the pair of transverse rods jointly enclose a rectangular frame structure.
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, wherein: the upper end of each vertical rod also extends out of the upper side of the transverse supporting rod positioned on the upper side of the rectangular frame structure, a group of rotating structures are installed at the extending ends in a matched mode, and the lower end of each vertical rod also extends out of the lower side of the transverse supporting rod positioned on the lower side of the rectangular frame structure, and another group of rotating structures are installed at the extending ends in a matched mode.
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, wherein: the flange connecting plates of each group of the rotary structures are matched and hinged with the vertical rods through rotary holes formed in the middle of the flange connecting plates and pin shafts (23).
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, wherein: and inclined supporting rods are also connected between one group of inner diagonal angles of the rectangular frame structure in a matching and inclined manner.
Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, wherein: the vertical rod and the transverse strut are formed by welding H-shaped steel.
The beneficial effects are that:
the tooling for matching and installing the flanges between the sections of the steel truss concrete combined arch bridge has simple and reasonable structural design, and can ensure the matching precision of the flanges between the discontinuous matching sections of the steel truss concrete combined arch bridge when the tooling is used under the condition that the steel truss concrete combined arch bridge generates irreversible deformation after the concrete is poured.
The utility model can solve the problem of matching installation of the flange plates of the discontinuous matching section after shrinkage and creep of the concrete; the utility model has stable and simple structure and strong practicability, and can obviously reduce the mounting difficulty of the flange; the utility model can also overcome the problem of installation of flanges without continuous matching among sections caused by narrow places and other reasons, improves the total splicing efficiency and quality of the hoisting sections, and ensures the quality and the quality to finish the total splicing production task.
Drawings
FIG. 1 is a front view of a tooling for matching and installing flanges between sections of a steel truss concrete composite arch bridge;
FIG. 2 is a left side view of the tooling for the matched installation of flanges between sections of the steel truss concrete composite arch bridge of the utility model;
FIG. 3 is a schematic structural view of a tooling for matching and installing flanges between sections of a steel truss concrete combined arch bridge and an upper hoisting section assembly;
FIG. 4 is a schematic view of the A-A direction structure of the tooling for matching and installing flanges between sections of the steel truss concrete combined arch bridge in the utility model;
FIG. 5 is an enlarged view of area B of FIG. 3 of the tooling for the matched installation of flanges between sections of a steel truss concrete composite arch bridge of the present utility model;
FIG. 6 is a schematic structural view of a tooling for matching and installing flanges between sections of a steel truss concrete combined arch bridge and an assembly of a lower hoisting section;
fig. 7 is an enlarged view of region C of fig. 6 of the tooling for the matched installation of flanges between sections of a steel truss concrete composite arch bridge of the present utility model.
Detailed Description
As shown in figures 1 to 7, the tooling for matching and installing flanges between sections of the steel truss concrete combined arch bridge comprises a steel skeleton 1 and a rotating structure 2.
The steel skeleton 1 is of a rectangular frame structure and comprises a vertical rod 11, a transverse supporting rod 12 and an inclined supporting rod 13. The vertical rods 11 are a pair of vertical and symmetrically arranged, namely a left vertical rod and a right vertical rod; the cross brace 12 has a pair of upper cross brace bars and lower cross brace bars, wherein the upper cross brace bars are horizontally connected between the upper ends of the left and right vertical bars in a matching manner, and the lower cross brace bars are horizontally connected between the lower ends of the left and right vertical bars in a matching manner; the pair of vertical bars 11 and the pair of horizontal bars 12 together enclose a rectangular frame structure. The diagonal brace 13 is obliquely connected between a group of inner diagonal corners of a rectangular frame structure surrounded by a pair of vertical bars 11 and a pair of horizontal bars 12; specifically, the upper end of the diagonal brace 13 is fixedly connected to the connection between the upper end of the left vertical rod and the left end of the upper cross brace, and the lower end of the diagonal brace 13 is fixedly connected to the connection between the lower end of the right vertical rod and the right end of the lower cross brace. Wherein the upper ends of the pair of vertical bars 11 vertically protrude above the upper-located cross bars 12, and the lower ends of the pair of vertical bars 11 vertically protrude below the lower-located cross bars 12. In order to ensure that the tooling for matching and installing the flange plates between the sections of the steel truss concrete combined arch bridge has stable structural form and enough rigidity, the vertical rods 11 and the transverse rods 12 are formed by welding H-shaped steel, and the inclined supporting rods 13 of a groove steel structure are obliquely assembled and welded.
The rotating structure 2 is provided with four groups and is respectively matched and installed at the four corners of the steel skeleton 1, namely the two ends of a pair of vertical rods 11; each group of rotating structures 2 consists of a flange connecting plate 21 and a tooling flange 22; a pair of flange connecting plates 21 are hinged at two ends of each vertical rod 11 of the steel winding framework 1 in a matched mode; each flange connecting plate 21 is matched and hinged with the vertical rod 11 of the steel winding framework 1 through a rotary hole formed in the middle of the flange connecting plate, and two ends of each flange connecting plate 21 are matched, symmetrically and fixedly provided with a pair of tooling flanges 22 which are parallel to each other, so that the four groups of rotary structures 2 are provided with 8 tooling flanges 22 in total; the whole rotary structure 2 can rotate around the vertical rod 11 of the steel skeleton 1 through a pin 23.
In order to ensure that the steel truss flange plate is highly attached to the fixture of the utility model, besides the rotation structure 2 can rotate, the problem of the change of the relative position relationship of four pairs of fixture flange plates 22 in the same section after the steel beam is poured with concrete can be solved through a large-aperture (phi 50 mm) parallel double flange plate, namely a pair of fixture flange plates 22 which are parallel to each other. Namely, the flanges at the two upper chord positions and the two lower chord positions of the upper hoisting section 01 are installed before concrete pouring (in order to ensure the inclination angle of the flanges of the upper hoisting section 01, the flanges at the two upper chord positions and the two lower chord positions are installed before concrete pouring), but after the concrete pouring and curing are finished, the positions of the flanges preassembled around the upper hoisting section 01 are changed due to the influence of shrinkage and creep of the concrete; after creep occurs, the tooling flange 22 of the utility model is matched with the flange on the four sides of the upper hoisting section 01 (two parts of the upper chord and two parts of the lower chord), wherein the matching process is to tightly attach the tooling flange 22 on one side of the utility model with the flange on the four sides of the end of the upper hoisting section 01 through a rotating structure 2 at four corners of the matched tooling, and the positional relationship between the tooling flange 22 on one side of the utility model and the flange on the end of the upper hoisting section 01 is misplaced due to the influence of the creep, and the temporary fixing of the tooling flange 22 on the other side of the utility model and the flange of the lower hoisting section 02 is carried out based on the misplaced relationship (the relative positional relationship between the tooling flange 22 on the other side of the utility model and the flange of the lower hoisting section 02 is kept synchronous with the positional relationship between the tooling flange 22 on one side of the utility model and the flange of the upper hoisting section 01); and finally, firstly measuring the longitudinal distance between the centers of the flanges of the upper chord member and the lower chord member of the upper hoisting section 01 by using a total station (calculated by measured three-dimensional coordinates), and determining the inclination angle of a matching tool when the flanges of the lower hoisting section 02 are assembled by taking the longitudinal distance as a basis.
The working principle of the tooling for matching and installing flange plates between sections of the steel truss concrete combined arch bridge is as follows:
1) After the shrinkage and creep of the concrete of the steel truss hoisting section are completed, matching the tooling of the utility model with a flange plate of the hoisting section 01 on the steel truss concrete, as shown in fig. 3;
2) Due to the influence of shrinkage and creep of concrete, the flange of the upper hoisting segment 01 and the tooling flange 22 on one side of the utility model are dislocated in a fitting state, and the relative position relationship between the flange of the upper hoisting segment 01 and the tooling flange 22 on one side of the utility model is based on the assembly of the tooling flange 22 on the other side of the utility model and the flange of the lower hoisting segment 02, as shown in fig. 3 and 4;
3) And measuring three-dimensional coordinates of the center points of the upper chord ring flange and the lower chord ring flange of the upper hoisting section 01 by using a total station (the purpose of measuring the three-dimensional coordinates is to measure the actual relative positions of the center points of the upper chord ring flange and the lower chord ring flange caused by shrinkage creep of the upper hoisting section 01 after concrete pouring is finished), and determining the inclination angle of the tool when the matching tool is matched with the lower hoisting section 02 by using the actual relative positions as a basis, as shown in fig. 5.
The manufacturing process of the utility model has the following requirements:
(1) in order to ensure the applicability of the tool, the simulation of the tool and the matching section is firstly carried out in CAD so as to determine the outline dimension of the tool;
(2) the tool disclosed by the utility model has higher strength, rigidity and stability, so that the component forming the tool disclosed by the utility model mainly comprises the H-shaped welding profile steel of the medium plate;
(3) when the tooling is manufactured, the welding deformation of the H-shaped steel is required to be paid attention to, and the flatness and the distortion are required to be controlled within 1mm per meter; the reinforcing plate is externally attached to the rotation center, and the surface is required to be milled, so that the precise matching of the rotation structure 2 and the vertical rod 11 is ensured;
(4) the vertical rod 11 and the rotary hole in the middle of the flange connecting plate 21 of the tool are required to be machined, so that clearance fit between the pin shaft 23 and the rotary hole is ensured;
(5) in the manufacturing process of the rotating structure 2 of the tooling, a pair of tooling flanges 22 are required to be ensured to be parallel, and the manufacturing error of the overall dimension of 8 tooling flanges 22 is required to be less than 1mm;
(6) the tool is easy to hold and put in the process of storage, transportation and use, so that the permanent deformation of the tool caused by external force is avoided;
(7) in the using process of the tool, the three-dimensional coordinate measurement is carried out by means of the total station, so that the measurement error of the total station is required to be smaller than 0.5mm.
The flange plate mounting device is reasonable in structural design, stable and simple in structure and high in practicability, can obviously reduce the mounting difficulty of the flange plate of the discontinuous matching section, can overcome the mounting of the flange plate without continuous matching between the sections caused by narrow places and other reasons, and can improve the working efficiency.
Claims (6)
1. Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section, its characterized in that: the tool comprises a steel skeleton (1) and a rotating structure (2); the steel skeleton (1) is of a rectangular frame structure, and a group of rotating structures (2) are installed on the upper side and the lower side of the steel skeleton in a matched mode at four corners; each group of rotating structures (2) consists of a flange connecting plate (21) and a pair of tooling flange plates (22); the pair of tooling flange plates (22) are parallel to each other and are symmetrically and fixedly arranged at two ends of the flange connecting plate (21) in a matching way; the middle part of the flange connecting plate (21) is hinged with the steel skeleton (1) in a matching way, so that the whole rotating structure (2) can rotate around the steel skeleton (1).
2. The tooling for matching and installing flanges between sections of steel truss concrete combined arch bridge as recited in claim 1, wherein: the steel skeleton (1) comprises a vertical rod (11) and a transverse supporting rod (12); the vertical rods (11) are a pair of vertical and symmetrical; the transverse supporting rods (12) are also provided with a pair of vertical rods (11) which are respectively and horizontally connected between the upper ends and the lower ends in a matching way; the pair of vertical rods (11) and the pair of transverse supporting rods (12) jointly enclose a rectangular frame structure.
3. The tooling for matching and installing flanges between sections of steel truss concrete combined arch bridge as recited in claim 2, wherein: the upper end of each vertical rod (11) also extends above the transverse supporting rod (12) positioned on the upper side of the rectangular frame structure, a group of rotating structures (2) are installed at the extending ends in a matched mode, and the lower end of each vertical rod (11) also extends below the transverse supporting rod (12) positioned on the lower side of the rectangular frame structure, and another group of rotating structures (2) are installed at the extending ends in a matched mode.
4. A steel truss concrete composite arch bridge inter-segment flange matching installation tool as recited in claim 3, wherein: the flange connecting plates (21) of each group of the rotating structures (2) are matched and hinged with the vertical rods (11) through rotating holes formed in the middle of the flange connecting plates and pin shafts (23).
5. The tooling for matching and installing flanges between sections of steel truss concrete combined arch bridge as recited in claim 2, wherein: and inclined supporting rods (13) are also connected between one group of inner diagonal angles of the rectangular frame structure in a matching and inclined manner.
6. The tooling for matching and installing flanges between sections of steel truss concrete combined arch bridge as recited in claim 2, wherein: the vertical rods (11) and the transverse supporting rods (12) are formed by welding H-shaped steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320795167.6U CN219710034U (en) | 2023-04-11 | 2023-04-11 | Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320795167.6U CN219710034U (en) | 2023-04-11 | 2023-04-11 | Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219710034U true CN219710034U (en) | 2023-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320795167.6U Active CN219710034U (en) | 2023-04-11 | 2023-04-11 | Frock of flange dish matching installation between steel purlin concrete combination arch bridge festival section |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219710034U (en) |
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2023
- 2023-04-11 CN CN202320795167.6U patent/CN219710034U/en active Active
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