Quick hoisting and mounting device for prefabricated bridge deck slab

Abstract

The utility model discloses a quick hoisting and mounting device for a prefabricated bridge deck slab. The quick hoisting and mounting device comprises two I-shaped bridge deck longitudinal beams which are arranged in parallel, a hollow square steel tube cross beam formed by splicing two hollow square steel tubes with different diameters is arranged between the two ends of the bridge floor longitudinal beam through a group of supporting and butting components; two track beams which are arranged in parallel in the longitudinal direction are arranged between the top surfaces of the two hollow square steel tube cross beams, and the two ends of the track beams are fixedly arranged on the top surfaces of the corresponding hollow square steel tube cross beams through vertical H-shaped steel columns respectively; at least two bearing cross beams which are arranged in parallel in the transverse direction are arranged on the track beams, and the two ends of the bearing cross beams are arranged on the corresponding track beams in a back-and-forth sliding mode through traction carrying trolleys respectively; and at least two electric hoists which can transversely slide left and right and are used for hoisting the bridge deck slab are arranged on the lower flange of the bearing cross beam. The technical scheme provided by the utility model can be used for quickly hoisting the prefabricated bridge deck slab, and is convenient to assemble and wide in application scene.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field, concretely relates to a prefabricated bridge deck slab fast hoisting and mounting device. BACKGROUND

[0002] Steel-concrete composite bridge is a kind of whole structure formed by combining steel beam and concrete bridge deck slab together in a certain way, and this structure utilizes the respective advantages of steel and concrete to achieve better bearing performance and service life. With the continuous progress of bridge industrialized construction technology, in order to improve construction efficiency, accelerate engineering progress and reduce the negative impact of construction on the surrounding environment, especially urban traffic, the prefabricated concrete bridge deck slab is generally used. The prefabricated concrete bridge deck slab is made in advance in factory or special prefabrication site, and through standardized and modular production, the quality can be guaranteed, and the on-site construction time can be shortened, and traffic can be quickly restored.

[0003] However, this prefabricated bridge deck slab generally needs to use large hoisting equipment during construction and installation, and these equipment is operated on the ground to hoist the prefabricated bridge deck slab to the designated position of the bridge for installation. Although this hoisting method can effectively improve the construction efficiency, it also has some problems. First, the large hoisting equipment will occupy a certain urban road space during construction, which may have a certain impact on the surrounding traffic flow during construction, especially in narrow or traffic-intensive areas, which may cause traffic congestion. Secondly, hoisting operation itself has certain safety risks, because the prefabricated bridge deck slab is usually heavy, and once an accident occurs during hoisting, such as hoisting equipment failure, operation error or uncontrollable factors such as strong wind, it may cause serious safety accidents, endangering the safety of construction personnel and passing pedestrians.

[0004] Therefore, the prefabricated bridge deck slab fast hoisting and mounting device can maximize the occupation of the construction site and reduce the interference with urban traffic. CONTENT OF THE UTILITY MODEL

[0005] The utility model aims at overcoming the defects in the prior art, and provides a prefabricated bridge deck slab fast hoisting and mounting device, which is used for the fast hoisting of prefabricated bridge deck slab, is convenient to assemble, and is widely applicable.

[0006] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme.

[0007] In the first aspect, the utility model provides a prefabricated bridge deck slab fast hoisting and mounting device, which comprises:

[0008] Two parallel arranged I-shaped bridge deck longitudinal beams;

[0009] A hollow square steel tube crossbeam is provided between each end of the longitudinal beam of the bridge deck via a set of supporting docking components.

[0010] Two longitudinally parallel track beams are provided between the top surfaces of the two hollow square steel tube crossbeams. Each end of the track beam is fixed to the top surface of the corresponding hollow square steel tube crossbeam by a vertical H-shaped steel column.

[0011] The track beam is provided with at least two load-bearing crossbeams that are parallel to each other in the transverse direction and can slide back and forth. The load-bearing crossbeams are provided with at least two electric hoists that can slide laterally left and right and are used for hoisting the bridge deck.

[0012] Furthermore, the hollow square steel tube crossbeam is formed by inserting two hollow square steel tubes of different diameters.

[0013] Furthermore, each end of the load-bearing crossbeam is mounted on a corresponding track beam via a traction and transport trolley that can slide back and forth.

[0014] Furthermore, the supporting docking assembly includes a vacuum suction cup disposed on the side end face of the hollow square steel tube crossbeam and an adjusting support disposed on the bottom end face. The vacuum suction cup is connected to the internally threaded long nut of the end plate of the hollow square steel tube crossbeam through an end bolt rod. The adjusting support is welded to the bottom of the hollow square steel tube crossbeam. The two ends of the hollow square steel tube crossbeam are respectively installed on the I-shaped side and bottom surface of the bridge deck longitudinal beam through the vacuum suction cup and the adjusting support.

[0015] Furthermore, the upper and lower walls of the two hollow square steel tubes are provided with several bolt holes, and bolt pins are inserted through alignment to restrict the free expansion and contraction of the hollow steel tube beam. The adjusting support is composed of two round steel tubes of different diameters nested together. The walls of the nested steel tubes are provided with circular holes, and steel pins can be inserted into the holes to restrict expansion and contraction.

[0016] Furthermore, limiting angle steels are respectively provided at both ends of the track groove of the track beam and at both ends of the lower flange of the load-bearing crossbeam.

[0017] Furthermore, a square steel pad for support is welded to the bottom end of the lower and / or upper round steel pipe of the adjusting support.

[0018] Furthermore, the load-bearing crossbeam has an H-shaped structure, and the electric hoist is slidably mounted on at least one lower flange of the load-bearing crossbeam.

[0019] Compared with the prior art, the beneficial effects achieved by this utility model are as follows: This utility model provides a prefabricated bridge deck rapid hoisting and installation device. This structure uses vacuum suction cups and adjustable supports to install the hoisting equipment on the longitudinal beams of the bridge deck, thereby reducing the site occupation of large hoisting equipment and reducing the interference to urban traffic to a certain extent.

[0020] This precast bridge deck rapid hoisting and installation device can hoist and transport bridge decks in both vertical and horizontal directions. Compared with traditional large-scale mechanical hoisting, it avoids the large-scale horizontal rotation of the cantilever of large machinery, reducing the safety risks during the hoisting process. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a prefabricated bridge deck rapid hoisting and installation device according to the present invention.

[0022] Figure 2 This is a front view of a prefabricated bridge deck rapid hoisting and installation device according to the present invention.

[0023] Figure 3 This utility model relates to a hollow square steel tube crossbeam.

[0024] Figure 4 This invention relates to a vacuum suction cup with a long bolt rod.

[0025] Figure 5 This is the adjustable support of the present invention.

[0026] Figure 6 This utility model relates to a crane track beam and a transport trolley.

[0027] Figure 7 This is the transverse load-bearing beam of this utility model.

[0028] In the picture:

[0029] 1. Bridge deck longitudinal beams; 2. Support docking components; 3. Hollow square steel tube crossbeams; 4. Track beams; 5. Vertical H-shaped steel columns; 6. Load-bearing crossbeams; 7. Traction and handling trolleys; 8. Electric hoists; 9. Vacuum suction cups; 10. Adjustable supports; 11. Bolt rods; 12. Internally threaded long nuts; 13. Bolt holes; 14. Bolt pins; 15. Round steel pipes; 16. Circular holes; 17. Steel pins; 18. Limiting angle steel; 19. Steel pads; 20. End plates; 21. Threaded holes. Detailed Implementation

[0030] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention.

[0031] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0032] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1 and Figure 2 As shown, this utility model embodiment provides a prefabricated bridge deck rapid hoisting and installation device, including...

[0034] Two parallel I-shaped longitudinal beams for the bridge deck 1;

[0035] A hollow square steel tube crossbeam 3, formed by inserting two hollow square steel tubes of different diameters, is provided between the two ends of the longitudinal beam 1 of the bridge deck through a set of supporting docking components 2.

[0036] Two longitudinally parallel track beams 4 are set between the top surfaces of two hollow square steel tube beams 3. Each end of the track beam 4 is fixed to the top surface of the corresponding hollow square steel tube beam 3 by a vertical H-shaped steel column 5. The bottom of the vertical H-shaped steel column 5 is bolted to the top surface of the steel tube beam.

[0037] At least two load-bearing crossbeams 6 are provided on the track beam 4, which are arranged in parallel along the transverse direction. Each end of the load-bearing crossbeam 6 is slidably mounted on the corresponding track beam 4 via a traction and transport trolley 7.

[0038] The load-bearing crossbeam 6 has an H-shaped structure, and at least two electric hoists 8 that can slide laterally left and right and are used for hoisting the bridge deck are installed on the lower flange.

[0039] The supporting docking assembly 2 includes a vacuum suction cup 9 set on the side end face of the hollow square steel tube beam 3 and an adjusting support 10 set on the bottom end face.

[0040] like Figure 3 and Figure 4 As shown, the vacuum suction cup 9 is connected to the end plate 20 of the hollow square steel tube beam 3 via the end bolt rod 11 or the long bolt rod 11 and the internal thread nut or internal thread long nut 12. The adjusting support 10 is welded to the bottom of the hollow square steel tube beam 3. The two ends of the hollow square steel tube beam 3 are respectively installed on the I-shaped side and bottom surface of the bridge deck longitudinal beam 1 via the vacuum suction cup 9 and the adjusting support 10.

[0041] like Figure 3 As shown, the upper and lower walls of the two hollow square steel pipes are provided with several bolt holes 13, and bolt pins 14 are inserted through alignment to restrict the free expansion and contraction of the hollow steel pipe beam.

[0042] like Figure 5 As shown, the adjusting support 10 is composed of two nested round steel pipes 15 of different diameters. Each nested steel pipe 15 has a circular hole 16 in its wall, into which a steel pin 17 can be inserted to limit expansion and contraction. A square steel pad 19 for support is welded to the bottom end of the lower round steel pipe 15 and / or the upper round steel pipe 15 of the adjusting support 10.

[0043] like Figure 6 and Figure 7 As shown, limit angle steels 18 are respectively installed at both ends of the track groove of the track beam 4 and at both ends of the lower flange of the load-bearing crossbeam 6.

[0044] In this embodiment, the lower end of the vertical H-shaped steel column 5 is fixed to the top surface of the corresponding hollow square steel tube beam 3 by L-shaped angle steel plates. The L-shaped angle steel plates have several threaded holes, and the top surface of the hollow square steel tube beam 3 also has several threaded holes. Bolts are screwed into these threaded holes for fixed connection. Alternatively, welding or other methods can also be used.

[0045] The construction operation method of the precast bridge deck rapid hoisting and installation device provided in this embodiment of the utility model includes the following steps:

[0046] Step S1: Inspect the construction site to ensure it meets safety requirements; prepare the necessary materials and equipment, including H-beams, vacuum suction cups 9, angle steel, bolt rods 11, electric hoists 8, traction equipment, adjustable supports 10, track beams 4, and transport trolleys;

[0047] Step S2: Screw the vacuum suction cup 9 into the nuts at both ends of the hollow square steel tube beam 3 using the bolt rod 11. At the same time, weld the adjustable support 10 to the bottom of the hollow square steel tube beam 3. Adjust the adjustable support to a suitable height so that the vacuum suction cup 9 can adhere to the center position of the web of the bridge deck longitudinal beam 1.

[0048] Step S3: Place one end of the hollow square steel tube crossbeam 3 on the lower flange of the bridge deck longitudinal beam 1. The vacuum suction cup 9 is attached to the web of the bridge deck longitudinal beam 1. Adjust the appropriate length of the hollow square steel tube crossbeam 3 according to the transverse spacing between the bridge deck longitudinal beams 1, while ensuring that the bolt holes 13 on the upper and lower walls of the large and small diameter square steel tubes are aligned. Insert the screw into the bolt hole 13 and tighten the nut to fix it, thereby restricting its free expansion and contraction. At the same time, place the other end of the hollow square steel tube crossbeam 3 on the lower flange of another bridge deck longitudinal beam 1.

[0049] Step S4: Fix the H-shaped steel column to both ends of the hollow square steel tube beam 3 with bolts and angle steel, and weld the track beam 4 to the top of the H-shaped steel column at the same time.

[0050] Step S5: Install the transport trolley on the track beam 4, and weld the H-beam load-bearing crossbeam 6 onto the transport trolley;

[0051] Step S6: Install electric hoist 8 on the lower flange of H-beam load-bearing crossbeam 6;

[0052] Step S7: Inspect the construction quality to ensure that all components of the precast bridge deck rapid hoisting and installation device are firmly installed, tightly connected, and meet the design requirements;

[0053] Step S8: Transport the bridge deck to the feeding area. The transport trolley, supported by the traction equipment, moves to the top of the feeding area via the load-bearing beam. Adjust the position of the electric hoist 8 and lower the hook to the appropriate position to lift the bridge deck. The transport trolley, supported by the load-bearing beam, moves to the bridge deck installation area. Lower the bridge deck to the appropriate position to install it. The transport trolley and its supported beam move back to the feeding area to begin the lifting of the next deck.

[0054] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for rapid hoisting and installation of precast bridge deck panels, characterized in that, include: Two parallel I-shaped longitudinal beams for the bridge deck; A hollow square steel tube crossbeam is provided between each end of the longitudinal beam of the bridge deck via a set of supporting docking components. Two longitudinally parallel track beams are provided between the top surfaces of the two hollow square steel tube crossbeams. Each end of the track beam is fixed to the top surface of the corresponding hollow square steel tube crossbeam by a vertical H-shaped steel column. The track beam is provided with at least two load-bearing crossbeams that are parallel to each other in the transverse direction and can slide back and forth. The load-bearing crossbeams are provided with at least two electric hoists that can slide laterally left and right and are used for hoisting the bridge deck.

2. The precast bridge deck rapid hoisting and installation device according to claim 1, characterized in that, The hollow square steel tube crossbeam is formed by inserting two hollow square steel tubes of different diameters.

3. The precast bridge deck rapid hoisting and installation device according to claim 2, characterized in that, The load-bearing crossbeam is mounted on corresponding track beams at both ends via a traction and transport trolley.

4. The precast bridge deck rapid hoisting and installation device according to claim 3, characterized in that, The supporting docking assembly includes a vacuum suction cup disposed on the side end face of the hollow square steel tube crossbeam and an adjusting support disposed on the bottom end face. The vacuum suction cup is connected to the internal threaded long nut of the end plate of the hollow square steel tube crossbeam through an end bolt rod. The adjusting support is welded to the bottom of the hollow square steel tube crossbeam. The two ends of the hollow square steel tube crossbeam are respectively installed on the I-shaped side and bottom surface of the bridge deck longitudinal beam through the vacuum suction cup and the adjusting support.

5. The precast bridge deck rapid hoisting and installation device according to claim 4, characterized in that, The upper and lower walls of the two hollow square steel tubes are provided with several bolt holes, and bolt pins are inserted through alignment to restrict the free expansion and contraction of the hollow steel tube beam. The adjusting support is composed of two round steel tubes of different diameters nested together. The walls of the nested round steel tubes are provided with circular holes, and steel pins can be inserted into the holes to restrict expansion and contraction.

6. The precast bridge deck rapid hoisting and installation device according to claim 5, characterized in that, Limiting angle steels are respectively provided at both ends of the track groove of the track beam and at both ends of the lower flange of the load-bearing crossbeam.

7. The precast bridge deck rapid hoisting and installation device according to claim 6, characterized in that, A square steel pad for support is welded to the bottom end of the lower and / or upper round steel pipe of the adjusting support.

8. The precast bridge deck rapid hoisting and installation device according to claim 1, characterized in that, The load-bearing crossbeam has an H-shaped structure, and the electric hoist is slidably mounted on at least one lower flange of the load-bearing crossbeam.

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