CN217678646U - Tie rod arch bridge middle beam installation device - Google Patents
Tie rod arch bridge middle beam installation device Download PDFInfo
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- CN217678646U CN217678646U CN202221853875.2U CN202221853875U CN217678646U CN 217678646 U CN217678646 U CN 217678646U CN 202221853875 U CN202221853875 U CN 202221853875U CN 217678646 U CN217678646 U CN 217678646U
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Abstract
The utility model discloses a tie rod arch bridge middle cross beam installation device, including the middle cross beam, the top of middle cross beam is provided with the tie beam, strenghthened type bailey roof beam is installed at the top of tie beam, the shoulder pole crossbeam on the double pin channel-section steel is installed at the top of strenghthened type bailey roof beam, the junction of shoulder pole crossbeam and strenghthened type bailey roof beam on the double pin channel-section steel is provided with first-class angle steel, the one end of first-class angle steel and the shoulder pole crossbeam fixed connection on the double pin channel-section steel, the other end and strenghthened type bailey roof beam fixed connection, through taking to place strenghthened type bailey roof beam as interim atress roof beam on the tie beam, concrete placement strength after reaching intensity demolish the strenghthened type bailey roof beam, compare with the traditional cast-in-place construction method of setting up the support, with low costs, construction convenience, the atress is clear and easy to popularize; the device has good stability, high safety and high lifting speed; the device is used for many times through practical engineering, and the requirements on strength, rigidity and integrity can be met.
Description
Technical Field
The utility model belongs to the technical field of bridge engineering, concretely relates to tie rod arch bridge middle cross beam installation device.
Background
With the progress of society and the development of economy, large-scale structures are applied more and more, the span of the large-scale structures is larger and larger, the weight of the large-scale structures is heavier and heavier, the height of the large-scale structures is higher and higher, and the selection of the installation method can directly influence the safety of the structures, the difficulty of construction, the height of construction cost and the length of construction period. In the construction of roads and bridges, the tied arch bridge has more and more bridge types and various construction methods, and the specific construction method is determined according to site terrain conditions, bridge structures and equipment. In the river-crossing construction of the tied arch bridge, the installation of the middle cross beam generally adopts the following method: the method comprises the following steps of firstly erecting an arch rib, then installing a tie beam, erecting a Bailey beam on the tie beam, then transporting a reinforced concrete middle cross beam to the lower side of the Bailey beam, tying a chain block on the Bailey beam, lifting the middle cross beam to a designed position by using the chain block, or directly installing the middle cross beam below the Bailey beam by using a floating crane. How to connect between bailey beam and middle cross beam and how to guarantee the accurate position of middle cross beam is a difficult point in engineering.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tie rod arch bridge middle cross beam installation device 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 tie rod arch bridge middle cross beam installation device comprises a middle cross beam, wherein a tie beam is arranged at the top of the middle cross beam, a reinforced Bailey beam is installed at the top of the tie beam, a double-spliced channel steel upper carrying pole cross beam is installed at the top of the reinforced Bailey beam, a connecting part of the double-spliced channel steel upper carrying pole cross beam and the reinforced Bailey beam is provided with an upper-grade angle steel, one end of the upper-grade angle steel is fixedly connected with the double-spliced channel steel upper carrying pole cross beam, the other end of the upper-grade angle steel is fixedly connected with the reinforced Bailey beam, a double-spliced channel steel lower carrying pole cross beam is fixedly arranged at the bottom of the middle cross beam, a lower-grade angle steel is installed at the connecting part of the double-spliced channel steel lower carrying pole cross beam and the middle cross beam, one end of the lower-grade angle steel is fixedly connected with the middle cross beam, the other end of the double-spliced channel steel lower carrying pole cross beam is fixedly connected with the double-spliced channel steel lower carrying pole cross beam, a plurality of reserved holes are formed in the reserved holes, cold-drawn IV-grade steel reinforcing steel bars are arranged in the two ends of the cold-drawn IV-section steel upper carrying pole cross beam and the cold-drawn steel lower carrying pole cross beam, and the cold-drawn steel carrying cap are respectively sleeved with the cold-drawn steel IV-drawn base plate IV reinforcing steel.
Preferably, the two steel channels of the upper shoulder pole beam of the double-spliced steel channel and the lower shoulder pole beam of the double-spliced steel channel are connected through a plurality of connecting steel plates.
Preferably, the shape of first-class angle steel and lower-class angle steel is right angle column structure, all be provided with the mounting hole on first-class angle steel and the lower-class angle steel.
Preferably, the middle cross beam is of a T-shaped structure, and the cross sections of the upper carrying pole cross beam of the double-spliced channel steel and the lower carrying pole cross beam of the double-spliced channel steel are of I-shaped structures.
Preferably, a crossed reinforcing rod is arranged in the middle of the reinforced Bailey beam.
Compared with the prior art, the beneficial effects of the utility model are that: the reinforced Bailey beams are placed on the tie beams to serve as temporary stress beams, and the reinforced Bailey beams at the tops of the middle cross beams are removed after concrete pouring reaches strength, so that compared with a traditional support erecting and cast-in-place construction method, the construction method is low in cost, convenient to construct, clear in stress and easy to popularize; the device has good stability, high safety and high lifting speed; the device is used for many times through practical engineering, and the requirements on strength, rigidity and integrity can be met.
Drawings
Fig. 1 is a cross-sectional view of a tie-rod arch bridge of the present invention with a middle cross-member device resting on a tie-beam;
fig. 2 is a cross-sectional view of the shoulder pole beam of the middle cross beam mounting device of the present invention;
fig. 3 is a cross sectional view of the lower shoulder pole beam of the middle cross beam mounting device of the present invention;
in the figure: 1. a reinforced Bailey beam; 2. cold drawing IV-grade steel bars; 3. a middle cross beam; 4. carrying pole cross beams on the double-spliced channel steel; 5. a double nut; 6. a steel backing plate; 7. connecting steel plates; 8. tying a beam; 9. reserving a hole; 10. first-class angle steel; 11. a double-spliced channel steel lower shoulder pole beam; 12. lower equal angle steel.
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 to 3, the present invention provides a technical solution: crossbeam installation device in tie rod arched bridge, including well crossbeam 3, the top of well crossbeam 3 is provided with tie beam 8, strenghthened type bailey 1 is installed at the top of tie beam 8, shoulder beam 4 on the double pin channel-section steel is installed at strenghthened type bailey 1's top, shoulder beam 4 is provided with first-class angle steel 10 with strenghthened type bailey 1's junction on the double pin channel-section steel, play the reinforced effect, shoulder beam 4 fixed connection on the one end of first-class angle steel 10 and the double pin channel-section steel, the other end and strenghthened type bailey 1 fixed connection, well crossbeam 3's bottom is fixed and is provided with double pin channel-section steel lower shoulder beam 11, equal side angle steel 12 is installed with well crossbeam 3's junction to double pin channel-section steel lower shoulder beam 11, and the one end and well crossbeam 3 fixed connection of equal side angle steel 12 down, play the reinforced effect, the other end and double pin channel-section steel lower shoulder beam 11 fixed connection, be provided with a plurality of preformed holes 9 on well crossbeam, be provided with cold-drawing stage steel 2 in the preformed hole 9, and cold-drawing IV stage steel bar 2, and cold-drawing steel bar 6 both ends of cold-drawing steel bar are connected with the equal spinning cap respectively to guarantee that double pin-stage steel bar 2, the both ends of double pin-stage steel-section steel is connected with the cold-drawing steel is equipped with the cold-drawing steel bar 2.
In this embodiment, preferably, the two steel channels of the double-spliced steel channel upper carrying pole beam 4 and the double-spliced steel channel lower carrying pole beam 11 are connected through the plurality of connecting steel plates 7, so as to play a stabilizing role.
In this embodiment, the upper equal angle steel 10 and the lower equal angle steel 12 are preferably shaped as a right angle, and the upper equal angle steel 10 and the lower equal angle steel 12 are both provided with mounting holes for easy mounting.
In this embodiment, preferably, the middle cross beam 3 is a T-shaped structure, and the cross sections of the upper double-spliced channel steel carrying pole cross beam 4 and the lower double-spliced channel steel carrying pole cross beam 11 are i-shaped structures, so as to ensure a stable structure.
In this embodiment, preferably, a crossed reinforcing rod is arranged in the middle of the reinforced berey beam 1, so as to play a role in reinforcement.
The utility model discloses a theory of operation and use flow: when the steel bar cold-drawing platform is used, firstly, the reinforced Bailey beam 1 is placed on the beam 3 in a construction site, 4 cold-drawn IV-grade steel bars 2 respectively pass through the steel base plate 6 of the shoulder pole beam 4 on the double-spliced channel steel, the preformed hole 9 and the steel base plate 6 of the shoulder pole beam 11 under the double-spliced channel steel, and the double nuts 5 are screwed down; the upper shoulder pole beam 4 of the double-spliced channel steel and the two pieces of channel steel on the lower shoulder pole beam 11 of the double-spliced channel steel are connected by 4A 3 connecting steel plates 7 with the diameters of 50 multiplied by 10mm, and lower equal angle steel 12 is welded on the double-spliced channel steel between the lower shoulder pole beam 11 of the double-spliced channel steel and the middle beam 3 so as to limit the middle beam 3; between the carrying pole beam 4 on the double-spliced channel steel and the reinforced Bailey beam 1, welding upper-grade angle steel 10 on the double-spliced channel steel for limiting the carrying pole beam 4 on the double-spliced channel steel, hoisting the middle beam 3 and the reinforced Bailey beam 1 on the middle beam 3 in place by using a floating crane, manually connecting the remaining two sections of trusses and connecting pieces of the reinforced Bailey beam 1 with the reinforced Bailey beam 1 on the middle beam 3 when the middle beam 3 exceeds the top surface of the Bailey beam 8 by 15cm to form the full-length reinforced Bailey beam 1, slowly lowering the reinforced Bailey beam 1 on the middle beam 3 and the top surface of the middle beam by using the floating crane, enabling the two ends of the reinforced Bailey beam 1 to fall on the Bailey beam 8, finally pouring wet joint concrete, and dismantling the reinforced Bailey beam 1 on the middle beam 3 after the wet joint concrete reaches the strength.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. Tie rod arched bridge centre cross beam installation device includes centre cross beam (3), its characterized in that: the top of the middle cross beam (3) is provided with a tie beam (8), the top of the tie beam (8) is provided with a reinforced Bailey beam (1), the top of the reinforced Bailey beam (1) is provided with a double-spliced channel steel upper carrying pole beam (4), the joint of the shoulder pole beam (4) on the double-spliced channel steel and the reinforced Bailey beam (1) is provided with an upper-grade angle steel (10), one end of the upper-grade angle steel (10) is fixedly connected with the upper carrying pole cross beam (4) of the double-spliced channel steel, the other end is fixedly connected with the reinforced Bailey beam (1), the bottom of the middle cross beam (3) is fixedly provided with a double-spliced channel steel lower shoulder pole cross beam (11), a lower equal angle steel (12) is arranged at the joint of the double-spliced channel steel lower shoulder pole beam (11) and the middle beam (3), one end of the lower equilateral angle steel (12) is fixedly connected with the middle cross beam (3), the other end is fixedly connected with the double-spliced channel steel lower carrying pole cross beam (11), a plurality of preformed holes (9) are arranged on the middle cross beam (3), the preformed hole (9) is internally provided with a cold-drawn IV-grade steel bar (2), and two ends of the cold-drawn IV-grade steel bar (2) respectively penetrate through the double-spliced channel steel upper carrying pole cross beam (4) and the double-spliced channel steel lower carrying pole cross beam (11), and both ends of the cold-drawn IV-grade steel bar (2) are respectively sleeved with a steel backing plate (6), and two ends of the cold-drawn IV-grade steel bar (2) are connected with double nuts (5) in a screwing manner.
2. A tied arch bridge mid-span beam mounting apparatus, as set forth in claim 1, wherein: the upper carrying pole beam (4) of the double-spliced channel steel and the two channel steels of the lower carrying pole beam (11) of the double-spliced channel steel are connected through a plurality of connecting steel plates (7).
3. A tied arch bridge mid-span beam mounting apparatus, as set forth in claim 1, wherein: the shape of first-class angle steel (10) and lower equal angle steel (12) is right angle column structure, all be provided with the mounting hole on first-class angle steel (10) and lower equal angle steel (12).
4. A tie-arch bridge medium beam mounting apparatus according to claim 1, wherein: the middle cross beam (3) is of a T-shaped structure, and the cross sections of the shoulder pole cross beam (4) on the double-spliced channel steel and the shoulder pole cross beam (11) under the double-spliced channel steel are of I-shaped structures.
5. A tie-arch bridge medium beam mounting apparatus according to claim 1, wherein: the middle of the reinforced Bailey beam (1) is provided with a crossed reinforcing rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221853875.2U CN217678646U (en) | 2022-07-18 | 2022-07-18 | Tie rod arch bridge middle beam installation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221853875.2U CN217678646U (en) | 2022-07-18 | 2022-07-18 | Tie rod arch bridge middle beam installation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217678646U true CN217678646U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221853875.2U Active CN217678646U (en) | 2022-07-18 | 2022-07-18 | Tie rod arch bridge middle beam installation device |
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| Country | Link |
|---|---|
| CN (1) | CN217678646U (en) |
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2022
- 2022-07-18 CN CN202221853875.2U patent/CN217678646U/en active Active
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