CN219175020U

CN219175020U - Large-curvature arc steel beam positioning device

Info

Publication number: CN219175020U
Application number: CN202223514371.0U
Authority: CN
Inventors: 郦建火; 喻汪桃; 胡磊博; 余伟成; 韩可凡; 黄槺; 钱惠娜
Original assignee: Ningbo Municipal Engineering Construction Group Co Ltd
Current assignee: Ningbo Municipal Engineering Construction Group Co Ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-06-13
Anticipated expiration: 2032-12-28

Abstract

The utility model relates to a large-curvature arc steel beam positioning device, which comprises a transverse adjusting base group and a vertical adjusting base group, wherein the two groups of vertical adjusting base groups are respectively arranged on two sides of the transverse adjusting base group, the vertical adjusting base groups are fixedly connected with the transverse adjusting base groups through right-angle adapter plates, a shelving block for installing a measuring instrument is arranged on one group of vertical adjusting base, fluorescent paper is attached to the other group of vertical adjusting base groups, the center of the fluorescent paper and the center of the measuring instrument are in the same straight line, and the transverse adjusting base groups are arranged on bridge platforms on which steel beams are shelved; the beneficial effects of the utility model are as follows: through this positioner, hoist and mount girder steel to abutment can, just can realize that the roof beam face difference of girder steel can be adjusted according to the curb girder instrument, have the location convenience, adjust quick accuracy to can guarantee the advantage that the gap of weld joint is aligned and bridge line is smooth.

Description

Large-curvature arc steel beam positioning device

Technical Field

The utility model belongs to the technical field of bridge construction, and particularly relates to a positioning device for a large-curvature arc steel beam.

Background

When the current country rapidly develops, governments attach more and more importance to the construction of infrastructure, along with the improvement of urban efficiency, in the municipal engineering construction field, the construction of bridges gradually increases, the requirements on appearance modeling and landscape effect of bridges are also higher and higher, the requirements on the traditional concrete structure girder bridge cannot be met, and more urban bridges adopt steel structure forms in the background. Urban bridge construction is generally complex in process, requires high precision, is often limited in site and is influenced by the existing road traffic. The large-section hoisting construction technology is flexible and high in construction efficiency, and is increasingly applied along with the development of the construction technology. With the continuous steel box girder span increasing, the requirements of manufacturing technology, positioning technology, linear control and the like are also improved, the construction difficulty is increased, and the control of the bridge construction process is also more important. The steel structure material has high strength, light weight, excellent rigidity and plasticity and high construction speed. Therefore, research on construction of the steel box girder bridge in the city is of great significance to construction of the city bridge.

The engineering design adopts a steel box girder bridge, and the bridge line is in a large-curvature arc shape, so that the engineering design has extremely high requirements on the machining and mounting precision of the steel girder. At present, the steel beam sections are positioned by adopting a total station, are hoisted in place while being measured, are matched by adopting a manual pull rope in the process of lowering, are then lowered in place, are measured and rechecked after the lowering is completed, and are required to be hoisted again and adjusted in place if deviation exists. The installation method is safe and implicit, and the hoisting time is long, so that the construction progress is influenced.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provide the large-curvature arc steel beam positioning device capable of being adjusted in all directions according to the size and the height of a steel beam section.

The large-curvature arc steel beam positioning device comprises a transverse adjusting base set and a vertical adjusting base set, wherein the two vertical adjusting base sets are respectively arranged on two sides of the transverse adjusting base set, the vertical adjusting base set is fixedly connected with the transverse adjusting base set through a right-angle adapter plate, a shelving block for installing a measuring instrument is arranged on one vertical adjusting base set, fluorescent paper is attached to the other vertical adjusting base set, the center of the fluorescent paper and the center of the measuring instrument are in the same straight line, and the transverse adjusting base set is arranged on an abutment where a steel beam is arranged.

The beneficial effects of the utility model are as follows: compared with the prior art, can adjust to the width assorted with the girder steel through horizontal regulation base group, can adjust to the high assorted with the girder steel through vertical regulation base group to be in the center of fluorescent paper and measuring instrument's the horizontal elevation that can accurate adjustment girder steel on the same straight line with the center, through this positioner, hoist and mount girder steel to the abutment can, just can realize that the roof beam face difference of girder steel can be adjusted according to the curb girder instrument, have the location convenience, adjust quick accuracy, and can guarantee the advantage that the gap of opening of welding seam and bridge line are smooth.

Preferably, the transverse adjustment base set comprises a first transverse sliding piece and a second transverse sliding piece, one ends of the first transverse sliding piece and the second transverse sliding piece are respectively provided with four mounting holes, mounting bolts are inserted into the mounting holes, and the transverse adjustment base set is mounted on a bridge abutment where the steel beam is placed through the mounting bolts; the other end of the first transverse sliding piece is inserted into the other end of the second transverse sliding piece and can transversely adjust the width of the transverse adjusting base group; through the setting of above-mentioned structure for the width is adjusted to the horizontal regulation base group ability through two horizontal sliders directness and with the width assorted of girder steel, makes the horizontal regulation base group adjust the width controllable like this.

Preferably, the first and second lateral sliding members are each tubular square steel; through this square steel's setting for can alternate and can realize the horizontal width adjustment of horizontal adjustment base group between two horizontal sliding parts.

Preferably, the vertical adjusting base group comprises a fixed plate and a connecting plate, the connecting plate is connected with the fixed plate through a mounting assembly and is mounted, the connecting plate is positioned on the outer side of the fixed plate, the placing block is mounted on one connecting plate and is positioned on the outer side of the connecting plate, and the fluorescent paper is attached to the other connecting plate; the structure arrangement enables the measuring instrument arranged on the shelving block to be aligned with the fluorescent paper in the center, so that the horizontal elevation of the steel beam can be accurately adjusted, and the method is rapid and convenient.

Preferably, the mounting assembly comprises a first through hole and a second through hole, the first through hole is formed in the fixing plate, the second through holes are formed in the connecting plate, the first through holes are arranged in a plurality and are arranged in sequence at equal intervals along the height direction of the fixing plate, the second through holes are two and are matched with the first through holes, and the first through holes and the second through holes are fixed through mounting bolts; through respectively establishing the through-hole on fixed plate and connecting plate for can realize relative regulation between connecting plate and the fixed plate like this, and can realize adjusting along the direction of height of horizontal regulation base group, not only adjust conveniently but also stability after adjusting is very good.

Preferably, the distance between the adjacent first through holes is 5mm, and the distance between the two second through holes is 5mm and is distributed up and down along the height direction of the connecting plate; because of the horizontal elevation adjustment error of girder steel will control accurate, set up such hole interval then, be convenient for not only adjust from top to bottom between connecting plate and the fixed plate to can improve the horizontal elevation measurement accuracy of girder steel greatly.

Preferably, one end of the fixing plate is provided with four mounting holes, mounting bolts are inserted into the mounting holes, the fixing plate is fixed on a right-angle side of the right-angle adapter plate through the mounting bolts, and the other right-angle side of the right-angle adapter plate is fixed below the end part of the transverse adjusting base group through the mounting bolts; therefore, the fixing plate is fixed on the end part of the transverse adjusting base group through the right-angle adapter plate, and the disassembly and assembly are convenient.

Drawings

Fig. 1 is a schematic perspective view of a large curvature arc steel beam positioning device of the utility model.

The reference numerals in the drawings are respectively: 1. a transverse adjustment base set; 2. a vertical adjustment base group; 3. a right-angle adapter plate; 4. a measuring instrument; 5. a rest block; 6. fluorescent paper; 7. installing a bolt; 8. a mounting hole; 9. a mounting assembly; 11. a first lateral slider; 12. a second lateral slider; 21. a fixing plate; 22. a connecting plate; 91. a first through hole; 92. and a second through hole.

Detailed Description

The utility model will be described in detail below with reference to the attached drawings: as shown in fig. 1, the utility model comprises a transverse adjusting base set 1 and a vertical adjusting base set 2, wherein the two groups of vertical adjusting base sets 2 are respectively arranged on two sides of the transverse adjusting base set 1, the vertical adjusting base set 2 is fixedly connected with the transverse adjusting base set 1 through a right-angle adapter plate 3, a shelving block 5 for installing a measuring instrument 4 is arranged on one group of vertical adjusting base 2, fluorescent paper 6 is stuck on the other group of vertical adjusting base sets 2, the center of the fluorescent paper 6 and the center of the measuring instrument 4 are positioned on the same straight line, and the transverse adjusting base set 1 is arranged on a bridge abutment where a steel beam is arranged. The measuring instrument 4 is an infrared level meter or an infrared distance meter, and the center of the fluorescent paper 6 is stuck with a center point, so that constructors can judge the horizontal elevation of the steel beam and the height difference of the top surface of the beam directly from the center point of the fluorescent paper 6 through the measuring instrument 4.

The transverse adjustment base set 1 comprises a first transverse sliding piece 11 and a second transverse sliding piece 12, one ends of the first transverse sliding piece 11 and the second transverse sliding piece 12 are respectively provided with four mounting holes 8, mounting bolts 7 are inserted into the mounting holes 8, and the transverse adjustment base set 1 is mounted on a bridge abutment where a steel beam is placed through the mounting bolts 7; the other end of the first transverse sliding piece 11 is inserted into the other end of the second transverse sliding piece 12 and can transversely adjust the width of the transverse adjusting base group 1; the first transverse slider 11 and the second transverse slider 12 are both tubular square steel; the first lateral slider 11 has a larger size than the second lateral slider 12, so that the second lateral slider 12 can be smoothly inserted into the first lateral slider 11.

The vertical adjusting base group 2 comprises a fixed plate 21 and connecting plates 22, the connecting plates 22 are connected and installed with the fixed plate 21 through the installation component 9, the connecting plates 22 are positioned on the outer sides of the fixed plate 21, the shelving block 5 is installed on one connecting plate 22 and positioned on the outer sides of the connecting plates 22, and the fluorescent paper 6 is attached to the other connecting plate 22; the mounting assembly 9 comprises a first through hole 91 arranged on the fixed plate 21 and a second through hole 92 arranged on the connecting plate 22, the first through hole 91 is provided with a plurality of through holes and is arranged in sequence at equal intervals along the height direction of the fixed plate 21, the second through hole 92 is provided with two through holes and is matched with the first through hole 91, and the first through hole 91 and the second through hole 92 are fixed through the mounting bolt 7; the interval between the adjacent first through holes 91 is 5mm, and the interval between the two second through holes 92 is 5mm and is distributed up and down in the height direction of the connection plate 22.

Four mounting holes 8 are formed in one end of the fixing plate 21, mounting bolts 7 are inserted into the mounting holes 8, the fixing plate 21 is fixed on one right-angle side of the right-angle adapter plate 3 through the mounting bolts 7, and the other right-angle side of the right-angle adapter plate 3 is fixed below the end part of the transverse adjusting base set 1 through the mounting bolts 7.

The working principle of the utility model is as follows: according to BIM model to the girder segment location, obtain the plane coordinates of segment, utilize the total powerstation to measure the location in abutment and pier department, then adjust the width of horizontal regulation base group 1 and the height of vertical regulation base group 2 according to the length and width high size of segment, install horizontal regulation base group 1 and vertical regulation base group 2 that have adjusted in abutment department again, install the infrared ray spirit level according to girder steel top surface's elevation, then girder steel segment lifts by crane and directly puts positioner's relevant position, girder steel top surface altitude difference adjusts according to infrared ray spirit level and the ray in fluorescent paper 6 center, the adjustment is the altitude difference adjustment between girder steel and the abutment this moment, only adjust through the regulation elevation device on the abutment can.

The present utility model is not limited to the above embodiments, and any modification of the structural design provided by the present utility model, regardless of any changes in shape or material composition, should be considered as being within the scope of the present utility model.

Claims

1. The utility model provides a large curvature circular arc girder steel positioner, includes horizontal regulation base group (1) and vertical regulation base group (2), its characterized in that: the vertical adjustment base group (2) is provided with two groups and is respectively installed on two sides of the transverse adjustment base group (1), the vertical adjustment base group (2) is fixedly connected with the transverse adjustment base group (1) through a right-angle adapter plate (3), one group of the vertical adjustment base group (2) is provided with a shelving block (5) for installing a measuring instrument (4), the other group of the vertical adjustment base group (2) is provided with fluorescent paper (6), the center of the fluorescent paper (6) and the center of the measuring instrument (4) are in the same straight line, and the transverse adjustment base group (1) is installed on an abutment where a steel beam is arranged.

2. The high-curvature arc steel beam positioning device according to claim 1, wherein: the transverse adjustment base set (1) comprises a first transverse sliding piece (11) and a second transverse sliding piece (12), one ends of the first transverse sliding piece (11) and the second transverse sliding piece (12) are respectively provided with four mounting holes (8), mounting bolts (7) are inserted into the mounting holes (8), and the transverse adjustment base set (1) is mounted on an abutment where a steel beam is placed through the mounting bolts (7); the other end of the first transverse sliding piece (11) is inserted into the other end of the second transverse sliding piece (12) and can transversely adjust the width of the transverse adjusting base group (1).

3. The high-curvature arc steel beam positioning device according to claim 2, wherein: the first transverse sliding piece (11) and the second transverse sliding piece (12) are both tubular square steel.

4. The high-curvature arc steel beam positioning device according to claim 1, wherein: the vertical adjusting base group (2) comprises a fixed plate (21) and a connecting plate (22), the connecting plate (22) is connected with the fixed plate (21) through a mounting assembly (9), the connecting plate (22) is located on the outer side of the fixed plate (21), the shelving block (5) is mounted on one connecting plate (22) and located on the outer side of the connecting plate (22), and the fluorescent paper (6) is attached to the other connecting plate (22).

5. The high-curvature arc steel beam positioning device according to claim 4, wherein: the mounting assembly (9) comprises a first through hole (91) formed in the fixing plate (21) and a second through hole (92) formed in the connecting plate (22), wherein the first through holes (91) are provided with a plurality of through holes and are arranged in sequence at equal intervals along the height direction of the fixing plate (21), the second through holes (92) are provided with two through holes and are matched with the first through holes (91), and the first through holes (91) and the second through holes (92) are fixed through mounting bolts (7).

6. The high-curvature arc steel beam positioning device according to claim 5, wherein: the distance between the adjacent first through holes (91) is 5mm, and the distance between the two second through holes (92) is 5mm and is distributed up and down along the height direction of the connecting plate (22).

7. The high-curvature arc steel beam positioning device according to claim 4, wherein: four mounting holes (8) are formed in one end of the fixing plate (21), mounting bolts (7) are inserted into the mounting holes (8), the fixing plate (21) is fixed on a right-angle side of the right-angle adapter plate (3) through the mounting bolts (7), and the other right-angle side of the right-angle adapter plate (3) is fixed below the end part of the transverse adjusting base set (1) through the mounting bolts (7).