CN219823374U - Hoisting device for arched girder combined section of tied arch bridge - Google Patents
Hoisting device for arched girder combined section of tied arch bridge Download PDFInfo
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- CN219823374U CN219823374U CN202321157558.1U CN202321157558U CN219823374U CN 219823374 U CN219823374 U CN 219823374U CN 202321157558 U CN202321157558 U CN 202321157558U CN 219823374 U CN219823374 U CN 219823374U
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- cross beam
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 claims description 36
- 230000002035 prolonged effect Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
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- Bridges Or Land Bridges (AREA)
Abstract
The utility model provides a lifting device for an arched girder combining section of a tied arch bridge, which comprises an upper cross beam and a lower cross beam which are arranged in parallel, wherein the upper cross beam and the lower cross beam are connected through web members to form a diamond-shaped frame structure, the two diamond-shaped frame structures are arranged opposite to each other and are connected and fixed through a connecting system to form a diamond-shaped hexahedral truss, lifting lugs are welded at the upper end of the diamond-shaped hexahedral truss, four lugs are welded at the lower end of the diamond-shaped hexahedral truss, four lugs are welded and fixed at one side of the upper end of the arched girder combining section, and the four lugs at the lower end of the diamond-shaped hexahedral truss correspond to the four lugs at the upper end of the arched girder combining section one by one. When lifting the crane with the double machines of the traditional gantry crane, the length of the gantry crane supporting leg running structure is larger than the distance between the lifting points of the combined section of the arched girder, and the steel wire rope of the gantry crane is subjected to deflection stress due to the too small distance between the lifting points, so that the lifting capacity of the gantry crane is lost, the beam structure of the gantry crane is deformed, and serious lifting accidents are generated. Belonging to the field of civil engineering.
Description
Technical Field
The utility model relates to a device for hoisting an arched girder combined section of a tied arch bridge, which is particularly suitable for hoisting the arched girder combined section of the tied arch bridge. Belonging to the field of civil engineering.
Background
In recent years, along with the powerful construction of urban infrastructure in China, river-crossing bridge structural forms are increasingly diversified, and on the premise that functions meet use requirements, the aesthetic property of a plurality of municipal river-crossing bridges is increasingly considered, so that the structure is increasingly complex. The steel structure bridge has the characteristics of large span capability, strong structural integrity, good shock resistance, attractive bridge appearance, ambitious property and the like because the bending moment of the beam is smaller than that of the continuous beam or the simply supported beam with the same span under the vertical load effect. The combined section of the arch foot and the arch beam of the long-span steel box tied arch bridge is an arch rib, a tie bar and a cross beam junction, and the materials, the sizes, the transverse partition plates and the longitudinal and transverse stiffening ribs of each component are arranged differently, so that the structure of the long-span steel box tied arch bridge is complex. Meanwhile, the arched girder combined section is influenced by thrust of an arch, internal force of a girder, counter force of a support, tie rod force and other acting forces in different directions, and the stress is complex. Because of the complex structure and the complex stress, the arch beam joint section has a large number of internal components, and the arch beam joint section has a small overall size but a large dead weight, which makes the lifting of the arch beam joint section difficult. In general projects, 2 gantry cranes are used for lifting construction when the arched girder combined section is lifted.
Disclosure of Invention
The utility model provides a hoisting device for an arched girder combined section of a tied-arch bridge, which aims to solve the problems that when a traditional gantry crane is lifted, the length of a gantry crane supporting leg running structure is longer than the distance between hoisting points of the arched girder combined section, and the hoisting capacity of the gantry crane is lost due to the fact that the hoisting point distance is too small and a gantry crane steel wire rope is subjected to deflection stress, so that the beam structure of the gantry crane is deformed, and serious hoisting accidents are caused.
In order to achieve the above purpose, such a lifting device for an arched bridge arched beam combination section of a tied arch bridge is to be adopted, the lifting device comprises an upper beam and a lower beam which is arranged below the upper beam in parallel, the upper beam and the lower beam are connected through web members to form a rhombic frame structure which is arranged vertically, the rhombic frame structures which are arranged vertically are opposite to each other and are connected and fixed between the rhombic frame structures through a connecting system to form a rhombic hexahedral truss, lifting lugs are welded at the upper ends of the rhombic hexahedral truss, four inserting lugs are welded and fixed at the lower ends of the rhombic hexahedral truss, four lifting lugs are welded and fixed at one side of the upper end of the arched beam combination section, and the four inserting lugs at the lower ends of the rhombic hexahedral truss correspond to the positions of the four lifting lugs at one side of the upper end of the arched beam combination section one by one.
In the lifting device, the lower end of the rhombic hexahedral truss is fixedly connected with one side of the upper end of the arched girder connecting section through the lifting lugs and the inserting lugs, the upper end of the rhombic hexahedral truss is obliquely arranged towards the outer side of the longitudinal direction of the arched girder connecting section, the distance between the lifting lugs on the upper part of the arched girder connecting section is prolonged through the lifting lugs on the upper end of the rhombic hexahedral truss, and the lifting point distance of the longitudinal direction of the arched girder connecting section is prolonged through the rhombic hexahedral truss, and the lengthening distance is approximately equal to the length of the upper cross beam.
In the hoisting device, the lifting lug is welded and fixed at the end part of the upper side of the upper beam, and the inserting lug is welded and fixed at the lower end of the web member.
In the hoisting device, the upper cross beam, the lower cross beam, the web members and the connecting system are all H-shaped steel; the lifting lug is a t=16 mm thick steel plate.
In the hoisting device, the connecting system is welded among the upper cross beam, the lower cross beam and the web members to form a local triangular stable structure, and the structural stability of the hoisting device is greatly enhanced.
In the hoisting device, the upper cross beam and the lower cross beam are parallel to the top plate of the arched girder combining section in the state that the rhombic hexahedral truss is fixedly connected with the arched girder combining section.
In the lifting device, the lifting lug and the inserting lug between the rhombic hexahedral truss and the arched girder combined section are fixed through bolting and can be repeatedly used for a plurality of times, and the use requirement can be met by only manufacturing one set of lifting device for the 4 combined sections of the tied arch bridge.
Compared with the prior art, the utility model can well solve the problems that when the traditional gantry crane is lifted by double machines, the length of the gantry crane supporting leg running structure is longer than the distance between the lifting points of the combined section of the arched girder, and the hoisting capacity of the gantry crane is lost due to the deflection stress of the gantry crane steel wire rope caused by the too small distance between the lifting points, so that the beam structure of the gantry crane is deformed to generate serious hoisting accidents, and the utility model is suitable for popularization and application.
Drawings
Fig. 1 is a schematic view of an arched girder coupling section lifting lug arrangement.
Fig. 2 is a schematic view of a rhombohedral truss structure.
Fig. 3 is a schematic structural view of the joined arch beam sections and rhombic hexahedral truss after connection. .
Fig. 4 is a schematic structural view of the lifting lug.
Fig. 5 is a schematic view of the structure of the bottom of the rhombohedral truss.
Detailed Description
For the purpose of promoting an understanding of the principles of the utility model, reference will now be made in detail to the embodiments described herein, including examples, illustrated in the accompanying drawings.
Examples
Referring to fig. 1, the present embodiment improves the hoisting structure of the arched girder coupling section of the tied arch bridge, and the improvement method specifically includes: and two ends of the top of the arched girder combining section 7 are respectively welded and fixed with lifting lugs 5, and the lifting lugs 5 are formed by processing t=16mm thick steel plates. The front 4 lifting lugs 5 are mainly used for connecting the rhombic hexahedral truss and the arched girder combined section 7 into a whole, and the rear 2 lifting lugs 5 are connected with a rear gantry crane steel wire rope when the double crane is lifted.
The rhombic hexahedral truss is a hoisting device, the hoisting device comprises an upper cross beam 1 and a lower cross beam 2 which are arranged below the upper cross beam 1 in parallel, the upper cross beam 1 and the lower cross beam 2 are HW400 multiplied by 21 section steel, the upper cross beam 1 and the lower cross beam 2 are connected through web members 3 to form a rhombic frame structure which is arranged vertically, the web members 3 are HW300 multiplied by 15 section steel, the two vertically arranged rhombic frame structures are arranged oppositely and are connected and fixed with the rhombic frame structure through a connecting system 4 to form a rhombic hexahedral truss, the connecting system 4 is HW200 multiplied by 8 section steel, the connecting system 4 is welded among the upper cross beam 1, the lower cross beam 2 and the web members 3 to form a local triangular stable structure, the structural stability of the device is greatly enhanced, lifting lugs 5 are welded at the upper ends of the rhombic hexahedral truss, four lugs 6 are welded and fixed at one side of the upper ends of the arched girder connecting section 7, the four lugs 6 are welded and correspond to the four lugs 5 at one side of the upper ends of the arched girder connecting section 7, and the four lugs 5 at one side of the upper ends of the rhombic hexahedral truss are welded and fixed at the upper ends of the web member 6.
The lower end of the rhombic hexahedral truss is fixedly connected with one side of the upper end of the arched beam combining section 7 through the lifting lugs 5 and the inserting lugs 6, the upper end of the rhombic hexahedral truss is obliquely arranged to the outer side of the longitudinal direction of the arched beam combining section 7, the distance between the lifting lugs 5 on the upper part of the arched beam combining section 7 is prolonged through the lifting lugs 5 on the upper end of the rhombic hexahedral truss, the distance between lifting points in the longitudinal direction of the arched beam combining section 7 is prolonged through the rhombic hexahedral truss, namely the distance between the lifting points during double-machine lifting is prolonged, the problem of deflection stress of a steel wire rope caused by the too long distance of the lifting points is solved, the lifting safety of the arched beam combining section is ensured, the lengthening distance is approximately equal to the length of the upper beam 1, the upper beam 1 and the lower beam 2 are parallel to the top plate of the arched beam combining section 7 in a fixed connection state, the lifting lugs 5 and the inserting lugs 6 between the rhombic hexahedral truss and the arched beam combining section 7 are fixedly connected through bolting, the lifting lugs 5 and the inserting lugs 6 can be repeatedly used for many times, and the 4 combining sections of the tied arch bridge can meet the use requirements.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (7)
1. A be used for tie rod arch bridge arched girder combination section hoist device, its characterized in that: the novel combined type cantilever beam comprises an upper cross beam (1) and a lower cross beam (2) which is arranged below the upper cross beam (1) in parallel, wherein the upper cross beam (1) and the lower cross beam (2) are connected through web members (3) to form a rhombic frame structure which is arranged vertically, the two rhombic frame structures which are arranged vertically are opposite to each other and are connected and fixed between the rhombic frame structures through a connecting system (4) to form a rhombic hexahedral truss, lifting lugs (5) are welded at the upper ends of the rhombic hexahedral truss, four lugs (6) are welded and fixed at the lower ends of the rhombic hexahedral truss, four lugs (5) are welded and fixed at one side of the upper ends of the arched beam combining section (7), and the four lugs (6) at the lower ends of the rhombic hexahedral truss correspond to the positions of the four lifting lugs (5) at one side of the upper ends of the arched beam combining section (7) one by one.
2. A lifting device for an arched bridge abutment according to claim 1, wherein: the lower extreme of rhombus hexahedral truss is connected fixedly through inserting ear (6) and lug (5) and arched girder combination section (7) upper end one side, and the upper end of rhombus hexahedral truss sets up to the outside slope of arched girder combination section (7) longitudinal direction to the distance between lug (5) on the upper portion of the extension arched girder combination section (7) through lug (5) of rhombus hexahedral truss upper end.
3. A lifting device for an arched bridge abutment according to claim 1, wherein: the lifting lug (5) is welded and fixed at the end part of the upper side of the upper cross beam (1), and the inserting lug (6) is welded and fixed at the lower end of the web member (3).
4. A lifting device for an arched bridge abutment according to claim 1, wherein: the upper cross beam (1), the lower cross beam (2), the web members (3) and the connecting system (4) are all H-shaped steel; the lifting lug (5) is a t=16 mm thick steel plate.
5. A lifting device for an arched bridge abutment according to claim 1, wherein: the connecting system (4) is welded among the upper cross beam (1), the lower cross beam (2) and the web members (3) to form a local triangular stable structure.
6. A lifting device for an arched bridge abutment according to claim 1, wherein: under the fixed connection state of the rhombic hexahedral truss and the arched girder combining section (7), the upper cross beam (1) and the lower cross beam (2) are parallel to the top plate of the arched girder combining section (7).
7. A lifting device for an arched bridge abutment according to claim 1, wherein: lifting lugs (5) and inserting lugs (6) between the rhombic hexahedral truss and the arched girder combining section (7) are fixed through bolting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157558.1U CN219823374U (en) | 2023-05-15 | 2023-05-15 | Hoisting device for arched girder combined section of tied arch bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321157558.1U CN219823374U (en) | 2023-05-15 | 2023-05-15 | Hoisting device for arched girder combined section of tied arch bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219823374U true CN219823374U (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321157558.1U Active CN219823374U (en) | 2023-05-15 | 2023-05-15 | Hoisting device for arched girder combined section of tied arch bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219823374U (en) |
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2023
- 2023-05-15 CN CN202321157558.1U patent/CN219823374U/en active Active
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