CN209907211U - Girder steel beam device that falls - Google Patents
Girder steel beam device that falls Download PDFInfo
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- CN209907211U CN209907211U CN201920338981.9U CN201920338981U CN209907211U CN 209907211 U CN209907211 U CN 209907211U CN 201920338981 U CN201920338981 U CN 201920338981U CN 209907211 U CN209907211 U CN 209907211U
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Abstract
The utility model provides a girder steel beam device that falls, belongs to bridge construction equipment field, its characterized in that: comprises a steel beam, a clamping device and a jack; the jack is inversely fixed at the lower end of the end beam of the steel beam through the clamping device. The clamping device is fixed on the end cross beam of the steel beam, the steel cushion block below the jack is moved out every time, the jack does not need to be dismantled, the construction time is saved, and the construction difficulty is reduced. Especially for the girder falling construction of steel girders crossing a business line, the number of the occupied skylight points can be reduced. The beam falling speed and the safety of the steel beam are greatly improved, and the optimization effect is obvious; clamping device makes the jack fix on the end crossbeam temporarily through filling board and girder steel side surface contact, and the rethread bolt top tightly fills the rubber slab on board surface and makes, can protect the finish paint of girder steel, and need not reserve the connecting hole in advance on the girder steel or weld, has reached the purpose of protection girder steel, has improved the commonality.
Description
Technical Field
The utility model belongs to bridge construction equipment field especially relates to a girder steel device that falls.
Background
With the rapid development of traffic, the problem of insufficient traffic space of urban roads is gradually aggravated, and a steel beam bridge has become one of effective ways for crossing existing lines in areas with complex lines by virtue of the characteristics of large applicable span, convenient transportation and installation and the like, and has been widely applied to crossing the running roads, railways, subways and the like in various large and medium-sized cities. The newly-built steel beam is mainly assembled outside a line, and then the integrally-falling beam is installed after the horizontally-pushed beam is pushed. Under the condition of influencing traffic as little as possible, how to safely and accurately place the steel beam on the pier support is a serious difficulty in steel beam bridge construction.
The main technology of girder steel beam falling at present is as follows: after the steel beams are assembled, arranging a unloading block below end beams of the steel beams, and arranging a jack for jacking on the top surface of the steel beams; starting an oil pump, and simultaneously lifting the steel beam by a jack to change the self weight of the steel beam from the support of the cushion blocks at two sides into the support of the jack, namely separating the steel beam from the steel cushion blocks at two sides; manually removing the topmost steel cushion blocks on the two sides in a matching manner; starting an oil pump to enable the jack to return oil, enabling the beam body to fall down and be supported on the steel cushion blocks on the two sides; moving out the jack, then taking out a layer of steel cushion block below the jack, reducing the height of the steel cushion block below the oil jack, and completing a beam falling cycle; and (5) reinstalling the jack, repeating the process to complete the beam falling operation, and finally installing and anchoring the formal support. According to the beam falling technology, every layer of steel cushion block below the jack is dismantled, the jack on the steel cushion block jack needs to be moved out (the weight of a single steel cushion block is about 400 kg), and due to the fact that the steel beam is arranged right above the jack, large equipment such as a crane cannot be used when the jack is dismantled, the large equipment can only be manually moved out by adopting chain block matching, time and labor are wasted, the construction difficulty is increased, and great potential safety hazards exist for the steel beam and a crossed line.
Disclosure of Invention
The utility model aims at solving the above problem and providing a simple structure's girder steel roof beam device that falls.
The steel beam falling device of the utility model comprises a steel beam, a clamping device and a jack; the jack is inversely fixed at the lower end of the end beam of the steel beam through the clamping device; through the mode of setting with the jack is invertd, at the girder steel roof beam in-process that falls, save the repeated displacement operation to the jack, reduce work load to effectively improve the efficiency of construction.
The steel beam falling device of the utility model, the clamping device comprises a base steel plate; fixed blocks are symmetrically arranged on two sides of the base steel plate; the fixing block comprises a clamping plate arranged horizontally and a vertical plate arranged perpendicular to the clamping plate; the clamping plate is fixedly connected with the vertical plate; a plurality of fixing through holes are symmetrically formed in the clamping plate and the base steel plate; a plurality of clamping through holes are formed in the vertical plate; nuts are fixedly arranged on the inner wall of the vertical plate corresponding to the clamping through holes; the clamping plate and the base steel plate are fixedly connected with a nut through a fixing through hole by a bolt; and a clamping bolt is arranged in the clamping through hole. The two sides of the base steel beam are respectively provided with a fixed block, the fixed blocks on the two sides form a rail groove shape through a horizontally arranged clamping plate and a vertically arranged vertical plate, and the jack and the clamping device are fixed through fixing through holes on the clamping plate and the base steel plate by bolts and nuts; the nuts are fixed on the inner sides of the clamping through holes in the vertical plates, the bolts are arranged in the clamping through holes and screwed, so that the top ends of the bolts extrude the side wall of the lower end of the end beam of the steel beam, and the steel beam falling device is fixed on the steel beam.
Girder steel roof beam device that falls, be provided with the stiffening plate between riser and the splint. The stability of fixed block is improved through setting up the stiffening plate, improves operation security and life.
Girder steel roof beam device that falls, the end crossbeam lower extreme both sides of girder steel all are provided with the rubber slab. Through setting up the rubber slab for bolt front end top is tight on the rubber slab, avoids influencing pleasing to the eye and durability to the damage of girder steel outer wall paint and structure.
In the steel beam falling device of the utility model, a filling plate is arranged between the rubber plate and the side wall of the lower end of the end beam of the steel beam; through the protection of filling up board reinforcing rubber slab to the girder steel outer wall, improve clamping device's tight effect of clamp for the rubber slab provides the buffer board layer, through the protection of increase to the girder steel outer wall.
The steel beam falling device of the utility model, the fixing through hole and the clamping through hole are arranged on the same vertical plane; the fixing through holes and the clamping through holes are arranged on the same processing surface, so that the overall attractiveness of the clamping device is increased, and the clamping device only needs to vertically move in the installation process, and is convenient to install and operate.
Girder steel roof beam device that falls, the longitudinal section of riser, splint and stiffener is right angled triangle, sets up it into triangle-shaped to strengthen the steadiness of fixed block.
In the steel beam falling device of the utility model, three pairs of fixing through holes are symmetrically arranged on the clamping plate and the base steel plate; three clamping through holes are formed in the vertical plate.
Girder steel roof beam device that falls fixes on the end crossbeam of girder steel through clamping device, shifts out the steel cushion below the jack at every turn, need not demolish the jack, practices thrift the engineering time and has reduced the construction degree of difficulty. Especially for the girder falling construction of steel girders crossing a business line, the number of the occupied skylight points can be reduced. The beam falling speed and the safety of the steel beam are greatly improved, and the optimization effect is obvious; clamping device makes the jack fix on the end crossbeam temporarily through filling board and girder steel side surface contact, and the rethread bolt top tightly fills the rubber slab on board surface and makes, can protect the finish paint of girder steel, and need not reserve the connecting hole in advance on the girder steel or weld, has reached the purpose of protection girder steel, has improved the commonality.
Drawings
FIG. 1 is a schematic structural view of an embodiment of a steel beam falling device according to the present invention;
fig. 2 is a front view of the clamping device of the present invention;
fig. 3 is a side view of the clamping device of the present invention;
wherein, the bridge comprises 1-a base steel plate, 2-a clamping plate, 3-a stiffening plate, 4-a vertical plate, 5-a rubber plate, 6-a filling plate, 7-a bolt, 8-a nut, 9-a jack, 10-a cushion block, 11-a steel beam and 12-a pier.
Detailed Description
The following describes the steel beam 11 falling device of the present invention in detail with reference to the accompanying drawings and embodiments.
The steel beam falling device of the utility model, as shown in figure 1, comprises a steel beam 11, a clamping device and a jack 9; the jack 9 is inversely fixed at the lower end of the end beam of the steel beam 11 through a clamping device; as shown in fig. 2, the clamping device includes a base steel plate 1; fixed blocks are symmetrically arranged on two sides of the base steel plate 1; the fixing block comprises a clamping plate 2 arranged horizontally and a vertical plate 4 arranged perpendicular to the clamping plate 2; the clamping plate 2 is fixedly connected with the vertical plate 4; as shown in fig. 3, three pairs of fixing through holes are symmetrically formed on the clamping plate 2 and the base steel plate 1; three clamping through holes are formed in the vertical plate 4; a nut 8 is fixedly arranged on the inner wall of the vertical plate 4 corresponding to the clamping through hole; the clamping plate 2 and the base steel plate 1 are fixedly connected with a nut 8 through a fixing through hole by a bolt 7; and a clamping bolt 7 is arranged in the clamping through hole. Two sides of a base steel beam 11 are respectively provided with a fixed block, the fixed blocks on the two sides form a rail groove shape through a horizontally arranged clamping plate 2 and a vertically arranged vertical plate 4, and a jack 9 is fixed with a clamping device through fixing through holes on the clamping plate 2 and a base steel plate 1 by adopting bolts 7 and nuts 8; and nuts 8 are fixed on the inner sides of the clamping through holes on the vertical plates 4, bolts 7 are arranged in the clamping through holes, and the bolts 7 are screwed, so that the top ends of the bolts 7 extrude the side wall of the lower end of the end beam of the steel beam 11, and the steel beam 11 falling device is fixed on the steel beam 11.
Girder steel roof beam device that falls, as shown in fig. 2, be provided with stiffening plate 3 between riser 4 and the splint 2, the longitudinal section of riser 4, splint 2 and stiffening plate 3 is right angled triangle, sets up it into triangle-shaped to the steadiness of reinforcing fixed block. The stability of fixed block is improved through setting up stiffening plate 3, improves operation security and life. And rubber plates 5 are arranged on two sides of the lower end of the end beam of the steel beam 11. Through setting up rubber slab 5 for 7 front ends tops of bolt are tight on rubber slab 5, avoid influencing pleasing to the eye and durability to the damage of 11 outer wall paints of girder steel and structure. A filling plate 6 is arranged between the rubber plate 5 and the side wall of the lower end of the end beam of the steel beam 11; strengthen the protection of rubber slab 5 to girder steel 11 outer wall through filling plate 6, improve clamping device's clamping effect for rubber slab 5 provides the buffer board layer, through the protection of increase to girder steel 11 outer wall. The fixing through hole and the clamping through hole are arranged on the same vertical plane; the fixing through holes and the clamping through holes are arranged on the same processing surface, so that the overall attractiveness of the clamping device is increased, and the clamping device only needs to vertically move in the installation process, and is convenient to install and operate.
After the steel beam 11 is assembled, arranging cushion blocks 10 on piers 12 below end beams of the steel beam 11 when the steel beam 11 is installed and dropped; the jack 9 is anchored on the top surface of the clamping device, and meanwhile, the end cross beam of the steel beam 11 is clamped by the bolt 7, so that the jack 9 is hung on the end cross beam in an inverted mode.
Starting an oil pump, and simultaneously lifting the steel beam 11 by the jack 9 to change the self weight of the steel beam 11 from the support of the cushion blocks 10 at the two sides into the support of the jack 9, namely separating the steel beam 11 from the steel cushion blocks 10 at the two sides; and manually removing the topmost steel cushion blocks 10 at the two sides. And (3) starting an oil pump to return oil to the jack 9, and enabling the beam body to fall down and be supported on the steel cushion blocks 10 on the two sides. Then directly taking out a layer of steel cushion block 10 right below the jack 9, and reducing the height of the steel cushion block 10 below the oil jack; and repeating the circulating operation according to the steps to finish the beam falling operation, and finally installing and anchoring the formal support.
Claims (8)
1. The utility model provides a girder steel roof beam device that falls which characterized in that: comprises a steel beam (11), a clamping device and a jack (9); the jack (9) is inversely fixed at the lower end of the end beam of the steel beam (11) through a clamping device.
2. The steel beam girder erection device of claim 1, characterized in that: the clamping device comprises a base steel plate (1); fixed blocks are symmetrically arranged on two sides of the base steel plate (1); the fixed block comprises a clamp plate (2) arranged horizontally and a vertical plate (4) arranged perpendicular to the clamp plate (2); the clamping plate (2) is fixedly connected with the vertical plate (4); a plurality of fixing through holes are symmetrically formed in the clamping plate (2) and the base steel plate (1); a plurality of clamping through holes are formed in the vertical plate (4); a nut (8) is fixedly arranged on the inner wall of the vertical plate (4) corresponding to the clamping through hole; the clamping plate (2) and the base steel plate (1) are fixedly connected with a nut (8) through a fixing through hole by a bolt (7); and a clamping bolt (7) is arranged in the clamping through hole.
3. The steel beam girder erection device of claim 2, characterized in that: and a stiffening plate (3) is arranged between the vertical plate (4) and the clamping plate (2).
4. The steel beam girder erection device of claim 3, characterized in that: and rubber plates (5) are arranged on two sides of the lower end of the end beam of the steel beam (11).
5. The steel beam girder erection device of claim 4, characterized in that: and a filling plate (6) is arranged between the rubber plate (5) and the side wall of the lower end of the end beam of the steel beam (11).
6. The steel beam girder erection device of claim 5, characterized in that: the fixing through hole and the clamping through hole are arranged on the same vertical plane.
7. The steel beam girder erection device of claim 6, characterized in that: the vertical plates (4), the clamping plates (2) and the stiffening plates (3) are right-angled triangles in longitudinal section.
8. The steel beam girder erection device of claim 7, characterized in that: three pairs of fixing through holes are symmetrically formed in the clamping plate (2) and the base steel plate (1); three clamping through holes are formed in the vertical plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338981.9U CN209907211U (en) | 2019-03-18 | 2019-03-18 | Girder steel beam device that falls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920338981.9U CN209907211U (en) | 2019-03-18 | 2019-03-18 | Girder steel beam device that falls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209907211U true CN209907211U (en) | 2020-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920338981.9U Expired - Fee Related CN209907211U (en) | 2019-03-18 | 2019-03-18 | Girder steel beam device that falls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209907211U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501574A (en) * | 2020-05-11 | 2020-08-07 | 中交二公局第五工程有限公司 | Steel plate girder S plane linear guide-beam-free split parallel pushing construction method |
| CN114232483A (en) * | 2021-12-03 | 2022-03-25 | 中铁九局集团第二工程有限公司 | Method and device for transversely moving prestressed T beam |
-
2019
- 2019-03-18 CN CN201920338981.9U patent/CN209907211U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111501574A (en) * | 2020-05-11 | 2020-08-07 | 中交二公局第五工程有限公司 | Steel plate girder S plane linear guide-beam-free split parallel pushing construction method |
| CN111501574B (en) * | 2020-05-11 | 2021-11-09 | 中交二公局第五工程有限公司 | Steel plate girder S plane linear guide-beam-free split parallel pushing construction method |
| CN114232483A (en) * | 2021-12-03 | 2022-03-25 | 中铁九局集团第二工程有限公司 | Method and device for transversely moving prestressed T beam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 Termination date: 20210318 |