Lifting appliance for steel main beam under arch
By designing a lifting device for the steel main beam under the arch, and utilizing the connection between the spreader beam, secondary crossbeam, and side longitudinal beam, staggered lifting can be achieved, solving the problem that the steel main beam under the arch cannot be directly lifted, and improving safety and flexibility.
Patent Information
- Application Number
- CN202423235643.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-26
AI Technical Summary
In existing bridge construction, the installation of the main steel beam under the arch is affected by the arch ribs and cross braces, making it impossible to lift it directly from under the bridge. Furthermore, the lifting equipment does not meet the requirements of being modular and reusable.
Design a lifting device for the steel main beam under the arch. By connecting the spreader beam with the secondary crossbeam and the side longitudinal beam, and through the lever principle, it can achieve staggered lifting, resist shear and torsional forces, and can be reused.
It effectively resists shear and torsional forces, enabling flexible hoisting and reuse of the steel main beam under the arch, thus improving the safety and flexibility of hoisting.
Smart Images
Figure CN223632948U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to bridge construction technical field, more particularly, an arch under steel girder hoist. BACKGROUND
[0002] In bridge construction, after arch rib segment hoisting is completed, the arch under steel girder installation is influenced by arch rib and cross brace, cannot be directly hoisted from under bridge installation, needs to move to the left and right sides of arch rib horizontal cable saddle position, implements hoisting, and the existing hoist does not satisfy the requirement of assembly and reutilization. SUMMARY
[0003] The utility model discloses a kind of arch under steel girder hoists, solve above-mentioned technical problems, effectively resist shear and torsional force, realize reutilization, and the flexibility of use is improved.
[0004] The utility model discloses the following technical scheme is realized: a kind of arch under steel girder hoist, for hoisting girder, main beam includes side longitudinal beam and secondary cross beam, including carrying pole beam, carrying pole beam is arranged in secondary cross beam below same direction, carrying pole beam one end is detachably connected with secondary cross beam, carrying pole beam another end extends out main beam after crossing side longitudinal beam, carrying pole beam outside end is provided with lifting ring and the vertical column for abutting side longitudinal beam outer edge.
[0005] Further, carrying pole beam is connected with the upper abutting block of the abutting limit of secondary cross beam upper end by screw rod.
[0006] Preferably, carrying pole beam and secondary cross beam are provided with the lower abutting block of the abutting of secondary cross beam lower end, and the lower abutting block is bolted with secondary cross beam.
[0007] Preferably, carrying pole beam is bolted with secondary cross beam and side longitudinal beam.
[0008] Further, it further includes reinforcing rib, reinforcing rib one end is connected with the wing plate of carrying pole beam outside end, and reinforcing rib another end is connected with the diagonal brace of side longitudinal beam.
[0009] Further, carrying pole beam is two h-shaped steels arranged side by side.
[0010] Further, vertical column is provided with diagonal brace between side longitudinal beam.
[0011] The utility model at least has following advantages and beneficial effects: by setting up carrying pole beam, cantilever is extended to the both sides of main beam, using lever principle, with side longitudinal beam as fulcrum, carrying pole beam outside end is connected to lifting ring upward by cable, and carrying pole beam inside end is stressed downward on secondary cross beam, realizes dislocation hoisting, effectively resists shear and torsional force, can release hoist and main beam connection after hoisting is completed, realizes reutilization, and the flexibility of use is improved. BRIEF DESCRIPTION OF DRAWINGS
[0012] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, based on the embodiments in the present application, all other embodiments obtained without creative labor are within the scope of protection of the present application.
[0013] Figure 1 The installation schematic view of the arch under steel girder lifting appliance provided for the first embodiment of the present application;
[0014] Figure 2 The installation top view of the arch under steel girder lifting appliance provided for the first embodiment of the present application;
[0015] Figure 3 The installation side view of the arch under steel girder lifting appliance provided for the first embodiment of the present application;
[0016] Figure 4 The installation schematic view of the arch under steel girder lifting appliance provided for the second embodiment of the present application;
[0017] Figure 5 The structural schematic view of the arch under steel girder lifting appliance provided for the second embodiment of the present application;
[0018] Figure 6 The installation schematic view of the arch under steel girder lifting appliance provided for the third embodiment of the present application;
[0019] Icon: 1-main beam, 11-side longitudinal beam, 12-secondary cross beam, 2-bamboo pole, 3-lifting ring, 4-stand column, 5-upper stop block, 6-lower stop block, 7-stiffener, 8-wing plate, 9-inclined support rod. DETAILED DESCRIPTION
[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical scheme in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.
[0021] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0022] Embodiment one
[0023] As Figures 1-3 shown, in the embodiment, mainly disclosed is a steel girder hoist under arch, which is used for hoisting a main girder 1, the main girder 1 comprises a side longitudinal beam 11 and a secondary cross beam 12, and comprises a carrying pole beam 2, the carrying pole beam 2 is arranged below the secondary cross beam 12 in the same direction, one end of the carrying pole beam 2 is detachably connected with the secondary cross beam 12, the other end of the carrying pole beam 2 extends out of the main girder 1 after crossing the side longitudinal beam 11, and a lifting ring 3 and a stand column 4 for abutting against an outer edge of the side longitudinal beam 11 are arranged at the outer end of the carrying pole beam 2; specifically, the steel girder 1 under arch is a lattice-shaped frame structure welded by an I-beam, due to the interference of the top arch rib and the cross brace, the main girder 1 cannot be directly hoisted, the hoist of the utility model extends out a cantilever to both sides of the main girder 1, which facilitates the implementation of hoisting by dislocation, the hoist is stably installed on both sides of the main girder 1, the carrying pole beam 2 uses the lever principle, takes the side longitudinal beam 11 as a fulcrum, the outer end of the carrying pole beam 2 is connected to the lifting ring 3 upward through a cable, and the inner end of the carrying pole beam 2 is stressed downward on the secondary cross beam 12, thereby effectively resisting shearing and torsional force, the stress is stable, the hoist can be disconnected with the main girder 1 after hoisting is completed, repeated use is realized, and the flexibility of use is improved.
[0024] Further, in specific implementation, as Figure 3 shown, the carrying pole beam 2 is connected with an upper abutting block 5 abutting against and limiting the upper end of the secondary cross beam 12 through a screw rod in the embodiment of the utility model; the secondary cross beam 12 is clamped on the carrying pole beam 2 through the screw rod and the upper abutting block 5, thereby forming an integral structure, and the safety and reliability of hoisting are ensured.
[0025] Further, in specific implementation, the embodiment of the utility model comprises a reinforcing rib 7, one end of the reinforcing rib 7 is connected with a wing plate 8 arranged at the outer end of the carrying pole beam 2, and the other end of the reinforcing rib 7 is connected with a diagonal brace of the side longitudinal beam 11; specifically, as Figure 2 shown, a single-side main girder 1 connection state is shown, the hoist can be arranged below the secondary cross beam 12 in the same direction at intervals, the middle secondary cross beam 12 is not installed with the hoist, the reinforcing rib 7 can be obliquely pulled to the corresponding position of the middle secondary cross beam 12, the acting strength of the structure is ensured, the rigidity and bending resistance of the structure are effectively improved, not only greater load can be borne, but also possible deformation can be reduced, and safety is improved.
[0026] Further, in specific implementation, the carrying pole beam 2 is two I-beams arranged side by side in the embodiment of the utility model; good bending resistance and stability are provided, the self-weight is reduced, and lightweight design of the overall hoist is facilitated.
[0027] Further, in specific implementation, the stand column 4 and the side longitudinal beam 11 are provided with a diagonal brace 9 in the embodiment of the utility model; the lateral stability of the structure is increased.
[0028] Embodiment two
[0029] As Figure 4 , 5 shown, in this embodiment, the main structure and embodiment one are completely consistent, the difference lies in that the flat beam 2 is provided with a lower abutting block 6 abutting with the lower end of the secondary beam 12, and the lower abutting block 6 is bolted with the secondary beam 12; it should be noted that the side longitudinal beam 11 is usually different in height from the secondary beam 12, so that the secondary beam 12 is suspended below, and the stress is unstable, by welding the lower abutting block 6 on the flat beam 2, and bolted with the secondary beam 12, so that the lower end of the secondary beam 12 is settled, and can be simultaneously acted on by the upper abutting block 5 and the lower abutting block 6, so as to ensure the stability and reliability of the structure.
[0030] Embodiment three
[0031] As Figure 6 shown, in this embodiment, the main structure and embodiment one are completely consistent, the difference lies in that the flat beam 2 is bolted with the secondary beam 12 and the side longitudinal beam 11; specifically, the lower plate of the secondary beam 12 and the side longitudinal beam 11 is directly bolted with the upper plate of the flat beam 2, so as to realize the detachable connection of the flat beam 2 and the main beam 1.
[0032] The above is only the preferred embodiment of the present application, and is not used to limit the present application, for those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims
1. An arch under steel girder spreader for hoisting a girder (1) comprising a side girder (11) and a secondary cross girder (12), characterized in that, The utility model provides a kind of beam structure, including flat beam (2), the flat beam (2) is arranged below the secondary crossbeam (12) in the same direction, one end of the flat beam (2) is detachably connected with the secondary crossbeam (12), the other end of the flat beam (2) extends out of the main beam (1) after crossing the side longitudinal beam (11), and the outside end of the flat beam (2) is provided with lifting ring (3) and column (4) for abutting the outer edge of the side longitudinal beam (11).
2. An arching steel girder hoist as claimed in claim 1, characterized in that, The flat beam (2) is connected with upper abutting block (5) for abutting and limiting the upper end of the secondary crossbeam (12) by screw rod.
3. An arching steel girder hoist as claimed in claim 1 or 2, characterized in that The flat beam (2) and the secondary crossbeam (12) are provided with lower abutting block (6) for abutting the lower end of the secondary crossbeam (12), and the lower abutting block (6) is bolted with the secondary crossbeam (12).
4. The steel girder spreader of claim 1 or 2, wherein, The flat beam (2) is bolted with the secondary crossbeam (12) and the side longitudinal beam (11).
5. An arching steel girder hoist as claimed in claim 1, wherein, It also includes reinforcing rib (7), one end of the reinforcing rib (7) is connected with the wing plate (8) provided at the outside end of the flat beam (2), and the other end of the reinforcing rib (7) is connected with the diagonal bracing of the side longitudinal beam (11).
6. An arching steel girder spreader as claimed in claim 1, wherein, The flat beam (2) is two H-shaped steels arranged side by side.
7. An arching steel girder spreader as claimed in claim 1, wherein, The column (4) and the side longitudinal beam (11) are provided with diagonal bracing (9) therebetween.