CN218562057U - Large-span prefabricated steel box girder structure - Google Patents
Large-span prefabricated steel box girder structure Download PDFInfo
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- CN218562057U CN218562057U CN202222721332.1U CN202222721332U CN218562057U CN 218562057 U CN218562057 U CN 218562057U CN 202222721332 U CN202222721332 U CN 202222721332U CN 218562057 U CN218562057 U CN 218562057U
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Abstract
The utility model relates to a prefabricated steel case roof beam technical field especially relates to a prefabricated steel case roof beam structure of large-span. The utility model discloses, including the steel box girder main part, a plurality of flexible groove has been seted up to the upside of steel box girder main part, flexible groove symmetric distribution is in about the upside of stating steel box girder main part both sides and its below be the hypotenuse of steel box girder main part, the notch width in flexible groove is less than about flexible groove width between the lateral wall, flexible groove activity is equipped with flexible piece, flexible piece is the type of falling T, the vertical position of flexible piece just runs through the upside of steel box girder main part through the notch in flexible groove, be equipped with locking mechanical system on the flexible piece of flexible groove notch top, first bolt hole has been seted up on the flexible piece, the downthehole movable cover of first bolt is equipped with the dead bolt. This prefabricated steel box girder construction operation simple process, convenient to use can practice thrift the engineering time, guarantees construction period, improves hoist and mount efficiency.
Description
Technical Field
The utility model relates to a prefabricated steel case roof beam technical field specifically is a prefabricated steel case girder construction of large-span.
Background
The steel box girder is also called as a steel plate box girder, is a common structural form of a large-span bridge, is called as a steel box girder because of being shaped like a box, can effectively exert the bearing capacity of a steel plate, has no redundant components, has small self-weight of the structure, is suitable for the large-span bridge, and simultaneously reduces the manufacturing cost of a lower structure of the bridge because the self-weight of an upper structure is reduced, is manufactured and installed on site in a factory, reduces the number of connection in a construction site, is easy to ensure the quality and has high reliability. The construction of mill and other constructions on the scene are separated, need not to increase the place, come to install promptly, practice thrift construction cost, the reduction of erection time, the construction is convenient fast, and it is big segmental forming unit to dispatch from the factory, can vertically drag or push away when the construction and erect, and hoist and mount are also convenient, improve greatly and erect efficiency, lay concrete pavement and pitch layer above the steel box girder at last.
At present, when a prefabricated steel box girder is hoisted, hoisting points needing to be hoisted are required to be fixedly installed and welded on the steel box girder, after hoisting is finished, a metal cutting gun is required to be used for cutting and dismantling the hoisting points, the hoisting points are required to be collected in a unified mode and are subjected to related processing, the operation is complex in the construction process of the hoisting points, the operation process requirement is high, the whole construction cost is increased for the hoisting points, a large amount of time is wasted, and the construction period is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a large-span prefabricated steel box girder structure to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a prefabricated steel box girder structure of large-span, includes steel box girder main part, a plurality of flexible groove has been seted up to the upside of steel box girder main part, flexible groove symmetric distribution is in the hypotenuse that both sides and its below are steel box girder main part about the upside of steel box girder main part, the notch width in flexible groove is less than the width between the lateral wall about flexible groove, flexible groove activity is equipped with flexible piece, flexible piece is the type of falling T, the notch that the vertical position of flexible piece passes through flexible groove just runs through the upside of steel box girder main part, be equipped with locking mechanical system on the flexible piece of flexible groove notch top, first bolt hole has been seted up on the flexible piece, the downthehole movable sleeve of first bolt is equipped with the dead bolt, be equipped with guiding mechanism on the dead bolt, the dead bolt cover is equipped with L type jib, relative one side of dead bolt is equipped with the locking groove, the last rotary connection mechanism that rotates of L type jib, the upside of L type jib is equipped with the mechanism of lifting by crane.
Preferably, the lifting mechanism comprises a plurality of L-shaped lifting rods which are fixedly connected with the same lifting beam, and two lifting hanging rings are symmetrically and fixedly connected to the upper side of the lifting beam.
Preferably, the rotating mechanism comprises a rotating limiting rod which is rotatably connected to the L-shaped hanging rod, and a limiting block is fixedly connected to the lower side of the rotating limiting rod.
Preferably, the locking mechanism comprises a second bolt hole formed in the telescopic block, the second bolt hole is located between the steel box girder main body and the first bolt hole, and a T-shaped bolt is movably sleeved in the second bolt hole.
Preferably, the guide mechanism comprises guide grooves arranged on the upper side and the lower side of the locking bolt, inclined planes are arranged on the upper side and the lower side of the left side of the first bolt hole, a guide post is fixedly connected to the upper side and the lower side of each inclined plane, and the lower side of each guide post is flush with the upper side of the first bolt hole.
Preferably, the upper side of the telescopic block is fixedly connected with a lifting ring close to the middle position, and the height of the lifting ring is smaller than the distance from the L-shaped suspender to the upper side of the telescopic block.
Preferably, two filling holes are formed in the upper side of the steel box girder main body, the filling holes are located on the left side and the right side of the telescopic groove, and the filling holes are communicated with the inside of the telescopic groove.
Preferably, one side of the L-shaped suspender opposite to the L-shaped suspender is provided with a mounting groove, a rotating shaft is fixedly connected between the front side wall and the rear side wall of the mounting groove, and the rotating limiting rod is movably sleeved on the rotating shaft.
Preferably, the height of the telescopic block, which exceeds the height of the upper side of the steel box girder main body after the bottom of the telescopic slot and the height of the lifting ring are smaller than the thickness of the covering layer on the upper side of the steel box girder main body.
Preferably, the upper side of the steel box girder main body is symmetrically and fixedly connected with protection guardrails, and the telescopic slot is positioned between the two protection guardrails.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses upwards lift up flexible piece when using, fix flexible piece at a take the altitude through locking mechanical system, insert the dead bolt again in the first bolt hole, dock rotary mechanism and locking groove, all hoisting points carry out same operation, can carry out lifting by crane the operation this moment, hoisting equipment will lift by crane the mechanism and lift by crane, L type jib can take place to rotate simultaneously, upwards perpendicularly, can begin to hoist, after the hoist and mount, take off the dead bolt from first bolt hole, release locking mechanical system again, flexible piece falls into flexible groove.
At last, concrete and asphalt are directly laid on the upper side of the steel box girder body, other construction operations are not needed, the concrete and the asphalt completely cover the telescopic block and the telescopic groove, the cutting of hoisting points is not needed, the prefabricated steel box girder structure is simple in operation process and convenient to use, the construction time can be saved, the construction period is guaranteed, and the hoisting efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of the structure A in FIG. 1;
FIG. 3 is a schematic view of the structure B in FIG. 2;
fig. 4 is a schematic diagram of structure C in fig. 2.
In the figure: 1. a steel box girder main body; 2. a telescopic groove; 3. a telescopic block; 4. a first pin hole; 5. locking the bolt; 6. an L-shaped boom; 7. a locking groove; 8. lifting the lifting beam; 9. lifting the hanging ring; 10. rotating the limiting rod; 11. a limiting block; 12. a second pin hole; 13. a T-shaped bolt; 14. a guide groove; 15. a bevel; 16. a guide post; 17. a lifting ring; 18. filling holes; 19. mounting grooves; 20. a rotating shaft; 21. and (5) protecting guardrails.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a prefabricated steel box girder construction of large-span, includes steel box girder main part 1, a plurality of flexible groove 2 has been seted up to the upside of steel box girder main part 1, flexible 2 symmetric distributions in groove are being in the upside of steel box girder main part 1 about both sides and its below be the hypotenuse of steel box girder main part 1, the notch width in flexible groove 2 is less than the width between the lateral wall about flexible groove 2, flexible 2 activities in groove are equipped with flexible piece 3, flexible piece 3 is the type of falling T, the vertical position of flexible piece 3 is through the notch of flexible groove 2 and run through the upside of steel box girder main part 1, be equipped with locking mechanical system on the flexible piece 3 of flexible 2 notch tops in groove, first bolt hole 4 has been seted up on flexible piece 3, the movable sleeve is equipped with dead bolt 5 in first bolt hole 4, be equipped with guiding mechanism on the dead bolt 5, the cover is equipped with L type jib 6 on the dead bolt 5, the relative one side of dead bolt 5 is equipped with locking groove 7, the last rotation of L type 6 connects rotary mechanism, the upside of L type jib 6 is equipped with lifting mechanism.
In the embodiment, the telescopic block 3 is lifted upwards in use, the telescopic block 3 is fixed at a certain height through the locking mechanism, the locking bolt 5 is inserted into the first bolt hole 4, the rotating mechanism is in butt joint with the locking groove 7, the same operation is carried out on all hoisting points, the hoisting operation can be carried out at the moment, the hoisting equipment acts on the hoisting mechanism, the hoisting mechanism is hoisted through the hoisting equipment, the L-shaped hoisting rod 6 can rotate until the hoisting mechanism is vertically upwards, hoisting can be started, after hoisting is finished, the locking bolt 5 is taken down from the first bolt hole 4, the locking mechanism is released, the telescopic block 3 falls into the telescopic groove 2, concrete and asphalt are directly laid on the upper side of the steel box girder main body 1 finally, other construction operations are not needed, the telescopic block 3 and the telescopic groove 2 are completely covered by the concrete and the asphalt, cutting of the hoisting points is not needed, the operation process of the prefabricated steel box girder structure is simple, the use is convenient, the construction time can be saved, construction period is guaranteed, the efficiency is improved, and the construction period is improved
The lifting mechanism comprises a plurality of L-shaped lifting rods 6, the same lifting beam 8 is fixedly connected with the lifting rods 6, and two lifting hanging rings 9 are symmetrically and fixedly connected to the upper side of the lifting beam 8.
When the lifting device is used, the lifting beam 8 concentrates the weight of the L-shaped lifting rod 6, and the lifting hanging ring 9 on the lifting beam 8 lifts the whole steel box girder main body 1 and all the device mechanisms above the steel box girder main body through the lifting equipment, so that the uniform stress during lifting is ensured.
The rotating mechanism comprises a rotating limiting rod 10 which is rotatably connected to the L-shaped hanging rod 6, and a limiting block 11 is fixedly connected to the lower side of the rotating limiting rod 10.
When the lifting device is used, the limiting rod 10 is rotated to limit, and lifting safety is guaranteed.
The locking mechanism comprises a second bolt hole 12 formed in the telescopic block 3, the second bolt hole 12 is located between the steel box girder main body 1 and the first bolt hole 4, and a T-shaped bolt 13 is movably sleeved in the second bolt hole 12.
When the telescopic block 3 is lifted up in the using process, the second bolt hole 12 is exposed out of the upper side of the steel box girder main body 1, and then the T-shaped bolt 13 is inserted into the second bolt hole 12, so that the position of the telescopic block 3 is locked, and workers can conveniently install other related components.
The guide mechanism comprises guide grooves 14 formed in the upper side and the lower side of the locking bolt 5, inclined planes 15 are formed in the upper side and the lower side of the left side of the first bolt hole 4, guide columns 16 are fixedly connected to the upper side and the lower side of each inclined plane 15, and the lower sides of the guide columns 16 are flush with the upper side of the first bolt hole 4.
In the operation process, the first bolt hole 4 is aligned to the side, provided with the inclined plane 15, of the first bolt hole 4, the inclined plane 15 is beneficial to insertion of the locking bolt 5, the guide post 16 is aligned to the guide groove 14, the locking bolt 5 is conveniently inserted into the first bolt hole 4 by a worker, the guide post 16 and the guide groove 14 have certain limiting effect in the hoisting process, and the locking bolt 5 is prevented from rotating when being hoisted to influence hoisting safety.
The upside of flexible piece 3 leans on intermediate position fixedly connected with lifting ring 17, lifting ring 17 highly is less than the distance of L type jib 6 to the upside of flexible piece 3.
In this embodiment, because steel box girder main part 1 and relevant part all are the steel, the volume is all bigger with the quality, when lifting flexible piece 3, the manpower is generally very difficult to lift flexible piece 3, so can overlap on lifting ring 17 through loop wheel machine or hydraulic means, under mechanical equipment's effect, lift flexible piece 3, fix flexible piece 3's position through locking mechanical system at last, make things convenient for the later stage to hoist and mount the operation, can practice thrift a large amount of manpower and materials.
Two filling holes 18 have been seted up to the upside of steel box girder main part 1, filling hole 18 is located flexible groove 2 left and right sides, and filling hole 18 communicates with flexible 2 inside grooves.
In this embodiment, when steel box girder main part 1 when the installation finishes, can get into flexible groove 2 with concrete and pitch through filling hole 18 when laying concrete and pitch road surface, make the inside complete filling in flexible groove 2 and fill, effectively avoid flexible 2 inside inner wall ponding when using in later stage in groove simultaneously, lead to steel box girder main part 1 to take place to corrode, influence the security of steel box girder main part 1, and make later stage steel box girder main part 1's maintenance difficulty, increase the maintenance cost.
An installation groove 19 is formed in one side, opposite to the L-shaped suspension rod 6, of the installation groove 19, a rotating shaft 20 is fixedly connected between the front side wall and the rear side wall of the installation groove 19, and the rotating limiting rod 10 is movably sleeved on the rotating shaft 20.
In this embodiment, rotate rotatory gag lever post 10 when using, it rotates around axis of rotation 20, puts into locking groove 7 with it, and the in-process stopper 11 that lifts by crane can provide a holding power for L type jib 6, guarantees the normal clear of hoist and mount work.
The height of the telescopic block 3, which exceeds the upper side of the steel box girder main body 1 after the bottom of the telescopic groove 2 and the height of the lifting ring 17 are smaller than the thickness of the covering layer on the upper side of the steel box girder main body 1.
In this embodiment, guarantee that steel box girder main part 1 when the installation is ended, when laying concrete and bituminous paving, can cover lifting ring 17 and flexible piece 3 completely at concrete and bituminous paving once, avoid the later stage to the cutting of hoisting point to and guarantee the level and smooth and normal use on later stage road surface, do not influence the safety of traveling of vehicle.
The upside symmetry fixedly connected with protection guardrail 21 of steel box girder main part 1, flexible groove 2 is located between two protection guardrails 21.
In this embodiment, avoid debris on the steel box girder main part 1 to follow the upper surface landing of steel box girder main part 1 when carrying out the hoist and mount operation, lead to personnel's damage, perhaps equipment damages, avoid the potential safety hazard, guarantee constructor's life safety.
The working principle is as follows: the utility model discloses a flexible piece 3 upwards lifts up when using, fix flexible piece 3 at a take the altitude through locking mechanical system, insert lockpin 5 again in first bolt hole 4, dock rotary mechanism and locking groove 7, all hoisting points carry out same operation, can carry out lifting by crane the operation this moment, hoisting equipment's effect is on lifting by crane the mechanism, will lift by crane the mechanism through hoisting equipment and lift, L type jib 6 can take place to rotate simultaneously, upwards until perpendicular, can begin to hoist, after hoist and mount, take off lockpin 5 from first bolt hole 4, release locking mechanical system again, flexible piece 3 falls into flexible groove 2.
At last, concrete and asphalt are directly laid on the upper side of the steel box girder main body 1, other construction operations are not needed, the concrete and the asphalt completely cover the telescopic block 3 and the telescopic groove 2, the cutting of hoisting points is not needed, the prefabricated steel box girder structure is simple in operation process and convenient to use, the construction time can be saved, the construction period is guaranteed, and the hoisting efficiency is improved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the spirit of the invention.
Although 1, steel box girder bodies are used more herein; 2. a telescopic groove; 3. a telescopic block; 4. a first pin hole; 5. locking the bolt; 6. an L-shaped boom; 7. a locking groove; 8. lifting the lifting beam; 9. lifting a hanging ring; 10. rotating the limiting rod; 11. a limiting block; 12. a second pin hole; 13. a T-shaped bolt; 14. a guide groove; 15. a bevel; 16. a guide post; 17. a lifting ring; 18. filling holes; 19. mounting grooves; 20. a rotating shaft; 21. guard rails, etc., but does not exclude the possibility of using other terms. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.
Claims (10)
1. The utility model provides a large-span prefabricated steel box girder structure, includes steel box girder main part (1), its characterized in that: the utility model discloses a steel box girder, including steel box girder main part (1), flexible groove (2) symmetric distribution about the upside of steel box girder main part (1) both sides and its below be the hypotenuse of steel box girder main part (1), the notch width in flexible groove (2) is less than the width between the lateral wall about flexible groove (2), flexible groove (2) activity is equipped with flexible piece (3), flexible piece (3) are the type of falling T, the vertical position of flexible piece (3) just runs through the upside of steel box girder main part (1) through the notch in flexible groove (2), be equipped with locking mechanical system on flexible piece (3) of flexible groove (2) notch top, first bolt hole (4) has been seted up on flexible piece (3), first bolt hole (4) internalization bolt (5), be equipped with guiding mechanism on locking bolt (5), the cover is equipped with L type jib (6) on locking bolt (5), relative one side of locking bolt (5) is equipped with L type jib (7), the L type jib (6) is connected to the cover is equipped with on the L type jib (6), the L type jib (6) is lifted by crane the mechanism.
2. The large-span prefabricated steel box girder structure of claim 1, wherein: the lifting mechanism comprises a plurality of L-shaped lifting rods (6) which are fixedly connected with the same lifting beam (8), and two lifting hanging rings (9) are symmetrically and fixedly connected to the upper side of the lifting beam (8).
3. The large-span prefabricated steel box girder structure of claim 2, wherein: the rotating mechanism comprises a rotating limiting rod (10) which is rotatably connected to the L-shaped hanging rod (6), and a limiting block (11) is fixedly connected to the lower side of the rotating limiting rod (10).
4. The large-span prefabricated steel box girder structure of claim 3, wherein: the locking mechanism comprises a second bolt hole (12) formed in the telescopic block (3), the second bolt hole (12) is located between the steel box girder main body (1) and the first bolt hole (4), and a T-shaped bolt (13) is movably sleeved in the second bolt hole (12).
5. The large-span prefabricated steel box girder structure of claim 4, wherein: the guide mechanism comprises guide grooves (14) formed in the upper side and the lower side of the locking bolt (5), inclined planes (15) are formed in the upper side and the lower side of the left side of the first bolt hole (4), guide columns (16) are fixedly connected to the upper side and the lower side of each inclined plane (15), and the lower sides of the guide columns (16) are flush with the upper side of the first bolt hole (4).
6. The large-span prefabricated steel box girder structure of claim 5, wherein: the upside of flexible piece (3) leans on intermediate position fixedly connected with lifting ring (17), the distance of the upside of L type jib (6) to flexible piece (3) is highly less than to lifting ring (17).
7. The large-span prefabricated steel box girder structure of claim 6, wherein: two filling holes (18) are formed in the upper side of the steel box girder main body (1), the filling holes (18) are located on the left side and the right side of the telescopic groove (2), and the filling holes (18) are communicated with the inside of the telescopic groove (2).
8. The large-span prefabricated steel box girder structure of claim 7, wherein: an installation groove (19) is formed in one side, opposite to the L-shaped hanging rod (6), of the installation groove (19), a rotating shaft (20) is fixedly connected between the front side wall and the rear side wall of the installation groove (19), and the rotating limiting rod (10) is movably sleeved on the rotating shaft (20).
9. The large-span prefabricated steel box girder structure of claim 8, wherein: the height of the telescopic block (3) which exceeds the upper side of the steel box girder main body (1) after the bottom of the telescopic groove (2) and the height of the lifting ring (17) are smaller than the thickness of the covering layer on the upper side of the steel box girder main body (1).
10. The large-span prefabricated steel box girder structure of claim 9, wherein: the steel box girder is characterized in that protective guardrails (21) are symmetrically and fixedly connected to the upper side of the steel box girder main body (1), and the telescopic groove (2) is located between the two protective guardrails (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222721332.1U CN218562057U (en) | 2022-10-14 | 2022-10-14 | Large-span prefabricated steel box girder structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222721332.1U CN218562057U (en) | 2022-10-14 | 2022-10-14 | Large-span prefabricated steel box girder structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218562057U true CN218562057U (en) | 2023-03-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222721332.1U Active CN218562057U (en) | 2022-10-14 | 2022-10-14 | Large-span prefabricated steel box girder structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218562057U (en) |
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2022
- 2022-10-14 CN CN202222721332.1U patent/CN218562057U/en active Active
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