Intelligent hoisting equipment for UHPC (Ultra High Performance Concrete)-steel box superposed beam

Abstract

The utility model relates to the technical field of bridge engineering construction, in particular to UHPC (Ultra High Performance Concrete)-steel box superposed beam intelligent hoisting equipment which comprises an equipment main frame with a symmetrical trapezoidal structure, a crown block system integrating the hoisting functions of a steel box beam and a UHPC beam, a movable track and a UHPC hoisting device. Wherein the crown block system realizes 90-degree rotation and accurate butt joint of steel box girders through an electric rotary lifting appliance; the UHPC hoisting device achieves transverse and longitudinal fine adjustment and bridge floor supporting through the transverse moving base, the longitudinal moving beam and the supporting oil cylinder, and the mounting precision of the UHPC beam is ensured. The main frame of the equipment adopts a reverse buckling wheel, a rear anchoring device and a limiting structure, so that the anti-overturning capability is improved. And the synchronous control system coordinates transverse movement, longitudinal movement and winding actions, so that the single-time hoisting efficiency is improved. The utility model solves the problems of large bracket scale, complex equipment coordination and low positioning accuracy in the traditional construction, is suitable for continuous assembly of long-span bridges, obviously reduces the construction cost and shortens the construction period.

Description

Technical Field

[0001] This utility model relates to the field of bridge engineering construction technology, specifically a UHPC-steel box composite beam intelligent hoisting equipment. Background Technology

[0002] In the field of bridge engineering, UHPC (Ultra-High Performance Concrete)-steel box girder bridges are widely used in the construction of long-span bridges due to their lightweight, high strength, and excellent durability. However, the construction technology of this type of structure still faces significant challenges. Currently, the mainstream construction methods mainly include the following two categories:

[0003] Scaffolding method construction: Temporary scaffolding is erected under the bridge site, and UHPC beams are poured in sections and steel box girders are assembled. This method requires a large-scale scaffolding system, especially in deep water or complex terrain areas. The cost of scaffolding erection is high, and underwater construction is limited by hydrological conditions, resulting in extended construction period.

[0004] Cantilever assembly method: Steel box girders are installed in sections using a crane, followed by the pouring of the UHPC layer. While this method reduces reliance on scaffolding, it requires multiple large hoisting machines to work together, making equipment scheduling complex.

[0005] Therefore, it is necessary to design an intelligent hoisting equipment for UHPC-steel box composite beams to overcome the limitations of traditional processes. Utility Model Content

[0006] The purpose of this utility model is to provide a UHPC-steel box composite beam intelligent hoisting equipment to solve the problems mentioned in the background art.

[0007] The objective of this utility model can be achieved through the following technical solutions:

[0008] A UHPC steel box composite beam intelligent hoisting equipment includes:

[0009] The main frame of the equipment has a symmetrical structure with a trapezoidal cross-section that is narrower at the top and wider at the bottom. The main frame includes a bottom beam and an upper cross beam. Two uprights, two diagonal braces one and two diagonal braces two are connected between the bottom beam and the upper cross beam. The uprights and diagonal braces one are fixedly connected to the bottom beam and the upper cross beam by bolts. The diagonal braces two are connected to the bottom beam and the upper cross beam by pins.

[0010] The overhead crane installed on the upper crossbeam moves back and forth along the upper crossbeam via a crane longitudinal movement cylinder. The overhead crane is equipped with a winch and an electric rotating hoist, and the electric rotating hoist is connected to the steel box girder via a steel box girder hanger.

[0011] The track is installed below the bottom beam. The track is fixed to the steel box beam by fixing ear plates, and the track is equipped with a main frame longitudinal movement cylinder and a reaction seat for driving the main frame of the equipment to move along the track.

[0012] The main beam of the UHPC hoisting device is symmetrically installed above the bottom beam and connected as a whole by transverse main beams. A support cylinder is provided below the main beam, and a transverse sliding seat and a longitudinal sliding beam are provided above the main beam. The transverse sliding seat moves laterally along the main beam by a transverse sliding seat cylinder, and the longitudinal sliding beam moves longitudinally along the transverse sliding seat by a longitudinal sliding beam cylinder. A winch and a UHPC beam hanger are provided on the longitudinal sliding beam.

[0013] Furthermore, the upper flange of the track is provided with evenly distributed slots and is connected to the bottom beam through a reverse buckle wheel. A rear anchor device is provided behind the reverse buckle wheel to fix the main frame of the equipment to prevent overturning.

[0014] Furthermore, the transverse sliding seat includes an upper limit pressure plate, a transverse sliding seat body, and a lower limit pressure plate. The lower limit pressure plate is used to engage the upper flange of the main beam with bolts to limit the lateral displacement range of the transverse sliding seat.

[0015] Furthermore, a limiting block is provided below the longitudinal beam, and the longitudinal beam is connected to the transverse seat through an upper limiting pressure plate to limit its longitudinal displacement range.

[0016] Furthermore, limiting blocks are provided at the front end of the upper crossbeam, on both sides of the main beam of the UHPC hoisting device, and at the bottom of the longitudinal moving beam to prevent the hoisting device from slipping.

[0017] Furthermore, the equipment is equipped with a synchronous control system to control the synchronous movement of the transverse sliding seat cylinder, the longitudinal sliding beam cylinder, and the winch, so as to ensure the precise positioning of the UHPC beam and the steel box girder.

[0018] Furthermore, connecting rods are installed between the two uprights and the two diagonal braces using pins.

[0019] The beneficial effects of this utility model are:

[0020] 1. This utility model integrates the hoisting functions of steel box girders and UHPC beams into a single device, simplifying the construction process, reducing the complexity of multi-device collaborative operations in traditional construction, and significantly reducing equipment purchase and maintenance costs.

[0021] 2. This utility model's transverse sliding seat, in conjunction with the longitudinal sliding beam, enables fine-tuning of the UHPC beam in both the transverse and longitudinal directions, ensuring the accuracy of beam assembly and reducing manual adjustment workload. The electric rotating hoist supports 90° rotation of the steel box girder, adapting to complex construction scenarios and improving installation efficiency.

[0022] 3. The main frame of this utility model adopts a trapezoidal symmetrical structure, combined with anti-locking wheels and a rear anchor device, effectively preventing the risk of overturning during equipment movement or hoisting. The main beam support cylinder provides bridge deck support during UHPC beam installation, reducing the cantilever stress on the main frame and improving the equipment's load-bearing capacity. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a side view of the present invention;

[0025] Figure 2 This is the new main view of the utility model;

[0026] Figure 3 This is a side view of the UHPC hoisting device in this utility model;

[0027] Figure 4 This is a partial schematic diagram of the transverse sliding seat in this utility model;

[0028] Figure 5 This is a schematic diagram of the lifting of the steel box girder;

[0029] Figure 6 This is a schematic diagram of rotating the steel box girder 90 degrees;

[0030] Figure 7 This is a schematic diagram of the steel box girder installation;

[0031] Figure 8 This is a schematic diagram of the installation of UHPC beams;

[0032] Figure 9 This is a schematic diagram showing the completed installation of the UHPC beam;

[0033] The accompanying figure is labeled as follows:

[0034] 1. Main frame of the equipment; 2. Overhead crane; 3. Winch; 4. Overhead crane longitudinal movement cylinder; 5. Electric rotating hoist; 6. Steel box girder hanger; 7. Main frame support slide two; 8. Main frame support slide one; 9. Rail; 10. Main frame longitudinal movement cylinder; 11. Reaction seat; 12. Fixed ear plate; 13. Reverse buckle wheel; 14. Rear anchor device; 15. Lateral movement seat; 16. Lateral movement seat cylinder; 17. Main girder support cylinder. 18. Main beam of UHPC hoisting device; 19. Longitudinal moving beam; 20. Longitudinal moving beam cylinder; 21. Main beam cross brace; 22. UHPC beam hanger; 1-1. Diagonal brace one; 1-2. Upper cross beam; 1-3. Vertical pole; 1-4. Diagonal brace two; 1-5. Bottom beam; 1-6. Connecting rod; 15-1. Upper limit pressure plate; 15-2. Main body of transverse moving seat; 15-3. Bolt; 15-4. Lower limit pressure plate. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Example:

[0037] Please see Figures 1-9 In this embodiment of the utility model, a UHPC-steel box composite beam intelligent hoisting equipment includes:

[0038] The main frame 1 of the equipment has a symmetrical structure with a trapezoidal cross-section that is narrower at the top and wider at the bottom. The main frame 1 includes a bottom beam 1-5 and an upper cross beam 1-2. Two uprights 1-3, two diagonal braces 1-1 and 2 diagonal braces 1-4 are connected between the bottom beam 1-5 and the upper cross beam 1-2. The uprights 1-3 and diagonal braces 1-1 are fixedly connected to the bottom beam 1-5 and the upper cross beam 1-2 by bolts 15-3. The diagonal braces 1-4 are connected to the bottom beam 1-5 and the upper cross beam 1-2 by pins.

[0039] The overhead crane 2 is installed on the upper crossbeam 1-2. The overhead crane 2 moves back and forth along the upper crossbeam 1-2 through the overhead crane longitudinal movement cylinder 4. The overhead crane 2 is equipped with a winch 3 and an electric rotating hoist 5. The electric rotating hoist 5 is connected to the steel box girder through the steel box girder hanger 6.

[0040] The track 9 is installed below the bottom beam 1-5. The track 9 is fixed to the steel box beam by the fixed ear plate 12. The track 9 is equipped with a main frame longitudinal movement cylinder 10 and a reaction seat 11 for driving the main frame 1 of the equipment to move along the track 9.

[0041] The main beam 18 of the UHPC hoisting device is symmetrically installed above the bottom beams 1-5 and connected as a whole by the main beam transverse bracing 21. A support cylinder 17 is provided below the main beam 18, and a transverse sliding seat 15 and a longitudinal sliding beam 19 are provided above the main beam 18. The transverse sliding seat 15 moves laterally along the main beam 18 through the transverse sliding seat cylinder 16, and the longitudinal sliding beam 19 moves longitudinally along the transverse sliding seat 15 through the longitudinal sliding beam cylinder 20. A winch 3 and a UHPC beam hanger 22 are provided on the longitudinal sliding beam 19.

[0042] The upper flange of the track 9 is provided with evenly distributed slots and is connected to the bottom beam 1-5 through the anti-locking wheel 13. The rear anchor device 14 is provided behind the anti-locking wheel 13. The rear anchor device 14 is used to fix the main frame 1 of the equipment to prevent overturning.

[0043] The transverse shift seat 15 includes an upper limit pressure plate 15-1, a transverse shift seat body 15-2, and a lower limit pressure plate 15-4. The lower limit pressure plate 15-4 uses bolts 15-3 to engage the upper flange of the main beam 18 to limit the lateral displacement range of the transverse shift seat 15.

[0044] The longitudinal beam 19 is provided with a limiting block below it, and the longitudinal beam 19 is connected to the transverse seat 15 through the upper limit pressure plate 15-1 to limit its longitudinal displacement range.

[0045] Limiting blocks are provided at the front end of the upper crossbeam 1-2, on both sides of the main beam 18 of the UHPC hoisting device, and at the bottom of the longitudinal moving beam 19 to prevent the hoisting device from slipping.

[0046] The equipment is equipped with a synchronous control system to control the synchronous movement of the transverse shift cylinder 16, the longitudinal shift beam cylinder 20, and the winch 3, so as to ensure the precise positioning of the UHPC beam and the steel box girder.

[0047] Among them, the two uprights 1-3 and the two diagonal braces 1-1 are all connected by connecting rods 1-6 using pins.

[0048] When using this utility model:

[0049] 1. Equipment Fixing and Preparation:

[0050] The track 9 is welded to the installed steel box girder via the fixed ear plate 12, and then the rear anchor device 14 is activated to anchor the main frame 1 of the equipment to the steel box girder.

[0051] 2. Steel box girder hoisting:

[0052] The transport vehicle delivers the steel box girder to the hoisting position. The winch 3 is operated to lower the steel box girder hoist 6 and connect it to the hoisting points of the steel box girder. After the steel box girder is lifted to the designated height, the electric rotating hoist 5 is started to rotate it 90°. The gantry crane's longitudinal movement cylinder 4 is adjusted to move the steel box girder backward and align it with the already installed beam. Finally, it is welded and fixed in place.

[0053] 3. Equipment movement:

[0054] Release the rear anchor device 14, start the main frame longitudinal movement cylinder 10, push the equipment to move along the track 9, repeat the anchoring and enter the next hoisting cycle.

[0055] 4. UHPC beam hoisting

[0056] Positioning and Adjustment:

[0057] After the UHPC beam is transported to the bridge deck, the position of the transverse sliding seat 15 is adjusted by the transverse sliding seat cylinder 16, and the longitudinal position of the longitudinal sliding beam 19 is adjusted by the longitudinal sliding beam cylinder 20, so that the UHPC beam is aligned with the installed beam body.

[0058] Precise installation:

[0059] Operate winch 3 to slowly lower the UHPC beam to the bridge deck support point, while the main beam support cylinder 17 lifts it simultaneously to ensure uniform contact between the UHPC beam and the bridge deck, and then proceed with the docking installation.

[0060] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A UHPC-steel box composite beam intelligent hoisting equipment, characterized in that, include: The main frame (1) of the equipment has a symmetrical structure and its cross-section is a trapezoidal structure that is narrow at the top and wide at the bottom. The main frame (1) includes a bottom beam (1-5) and an upper cross beam (1-2). The bottom beam (1-5) and the upper cross beam (1-2) are connected by two uprights (1-3), two diagonal braces one (1-1) and two diagonal braces two (1-4). The uprights (1-3) and diagonal braces one (1-1) are fixedly connected to the bottom beam (1-5) and the upper cross beam (1-2) by bolts (15-3). The diagonal braces two (1-4) are connected to the bottom beam (1-5) and the upper cross beam (1-2) by pins. The overhead crane (2) is installed on the upper crossbeam (1-2). The overhead crane (2) moves back and forth along the upper crossbeam (1-2) through the overhead crane longitudinal movement cylinder (4). The overhead crane (2) is equipped with a winch (3) and an electric rotating hoist (5). The electric rotating hoist (5) is connected to the steel box beam through the steel box beam hanger (6). The track (9) installed below the bottom beam (1-5) is fixed to the steel box beam by a fixed ear plate (12), and the track (9) is provided with a main frame longitudinal movement cylinder (10) and a reaction seat (11) for driving the main frame (1) of the equipment to move along the track (9). The main beam (18) of the UHPC hoisting device is symmetrically installed above the bottom beam (1-5) and connected as a whole by the main beam cross bracing (21). A support cylinder (17) is provided below the main beam (18), and a transverse shift seat (15) and a longitudinal shift beam (19) are provided above the main beam (18). The transverse shift seat (15) moves laterally along the main beam (18) through the transverse shift seat cylinder (16), and the longitudinal shift beam (19) moves longitudinally along the transverse shift seat (15) through the longitudinal shift beam cylinder (20). A winch (3) and a UHPC beam hanger (22) are provided on the longitudinal shift beam (19).

2. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, The upper flange of the track (9) is provided with evenly distributed slots and is connected to the bottom beam (1-5) through the reverse buckle wheel (13). A rear anchor device (14) is provided behind the reverse buckle wheel (13). The rear anchor device (14) is used to fix the main frame (1) of the equipment to prevent overturning.

3. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, The transverse shift seat (15) includes an upper limit pressure plate (15-1), a transverse shift seat body (15-2), and a lower limit pressure plate (15-4). The lower limit pressure plate (15-4) uses bolts (15-3) to engage the upper flange of the main beam (18) to limit the lateral displacement range of the transverse shift seat (15).

4. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, The longitudinal beam (19) is provided with a limiting block below it, and the longitudinal beam (19) is connected to the transverse seat (15) through the upper limit pressure plate (15-1) to limit its longitudinal displacement range.

5. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, Limiting blocks are provided at the front end of the upper crossbeam (1-2), on both sides of the main beam (18) of the UHPC hoisting device, and at the bottom of the longitudinal beam (19) to prevent the hoisting device from slipping.

6. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, The equipment is equipped with a synchronous control system to control the synchronous operation of the transverse shift cylinder (16), the longitudinal shift beam cylinder (20), and the winch (3) to ensure the accurate positioning of the UHPC beam and the steel box girder.

7. The UHPC-steel box composite beam intelligent hoisting equipment according to claim 1, characterized in that, Connecting rods (1-6) are installed between the two uprights (1-3) and the two diagonal braces (1-1) using pins.

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