Bridge deck slab mounting system for steel-concrete composite beam construction

Abstract

The utility model discloses a bridge deck slab mounting system for steel-concrete composite beam construction, and belongs to the technical field of bridge construction. The system comprises the bridge erecting machine and the lifting appliance. The bridge girder erection machine comprises a main beam, a crown block and a hoisting mechanism, and the lifting appliance comprises a slewing mechanism and a bearing beam structure. A track is arranged on the main beam, the crown block is arranged on the main beam, the hoisting mechanism is arranged on the crown block, the slewing mechanism is connected with the hoisting mechanism, and the bearing beam structure is connected with the slewing mechanism. The slewing mechanism comprises a lug plate, an axial rotating shaft and a radial rotating shaft. A first mounting hole and a second mounting hole are formed in the lug plate, and the first mounting hole is connected with a hoisting mechanism; the axial rotating shaft is arranged in the second mounting hole, and a third mounting hole is formed in the axial rotating shaft; and the radial rotating shaft is arranged in the third mounting hole and is connected with the bearing beam structure. According to the slewing mechanism of the bridge deck slab mounting system for steel-concrete composite beam construction, the bearing beam structure can carry the bridge deck slab to achieve radial rotation, and the working efficiency of bridge deck slab mounting is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, and particularly relates to a bridge deck installation system for the construction of steel-concrete composite beams. Background Art

[0002] With the rapid development of the bridge industry in China, the design of steel box concrete slab composite beams is increasingly widely used in actual production. However, the current erection scheme of precast bridge decks has certain limitations. On the one hand, the existing erection of precast bridge decks usually uses large lifting equipment or special equipment such as bridge erection machines. When using a crane for bridge deck installation, there are specific requirements for the crane occupation site. When it comes to bridge working conditions across rivers, lakes, and seas, due to site restrictions, this method cannot be implemented. For example, in the construction of bridges spanning wide waters, it is difficult to find a suitable crane occupation site, which makes it difficult to implement the crane installation of bridge decks. On the other hand, using a bridge erection machine for erection also faces difficulties. The existing bridge erection machines are mainly designed for the erection of conventional box girders and T-girders, and their construction characteristics are difficult to meet the requirements of bridge deck installation. There are deficiencies in the structure and function of the bridge erection machine in dealing with the size, weight, and installation accuracy of the bridge deck. For example, the shape and weight of the bridge deck may be very different from those of box girders and T-girders, resulting in the bridge erection machine being less flexible and accurate when grasping, moving, and installing the bridge deck. Summary of the Invention

[0003] Aiming at the deficiencies in the related art, the purpose of the utility model is to provide a bridge deck installation system for the construction of steel-concrete composite beams to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A bridge deck installation system for the construction of steel-concrete composite beams, comprising:

[0006] A bridge erection machine, which includes:

[0007] A main beam, on which a track is provided;

[0008] A trolley, which is arranged on the main beam to move along the track of the main beam;

[0009] A hoisting mechanism, which is arranged on the trolley;

[0010] A spreader, which includes:

[0011] A slewing mechanism, which is connected to the hoisting mechanism to make the hoisting mechanism hoist or lower the spreader;

[0012] A load-bearing beam structure, which is connected to the slewing mechanism to rotate with the slewing mechanism, and the load-bearing

[0013] The beam structure is used for hoisting and connecting the bridge deck;

[0014] Among them, the slewing mechanism includes:

[0015] The ear plate is provided with a first mounting hole and a second mounting hole, and the first mounting hole is connected to the hoisting

[0016] mechanism;

[0017] The axial rotating shaft is arranged in the second mounting hole, and a third mounting hole is arranged on the axial rotating shaft;

[0018] The radial rotating shaft is arranged in the third mounting hole, and the radial rotating shaft is connected to the load-bearing beam structure.

[0019] In some embodiments, the hoisting mechanism is a winch.

[0020] In some embodiments, the winch includes a drum, a steel wire rope is wound and fixed on the surface of the drum, and one end of the steel wire rope is connected to the first mounting hole.

[0021] In some embodiments, the slewing mechanism further includes a fixing nut, and the fixing nut is sleeved on one end of the radial rotating shaft to limit the positions of the radial rotating shaft and the axial rotating shaft.

[0022] In some embodiments, the slewing mechanism further includes a fixing pin shaft, and the fixing pin shaft penetrates through the fixing nut and the radial rotating shaft.

[0023] In some embodiments, the slewing mechanism further includes a slewing gasket, and the slewing gasket is arranged between the fixing nut and the axial rotating shaft.

[0024] In some embodiments, the load-bearing beam structure is a cuboid frame.

[0025] In some embodiments, the bridge deck installation system for steel-concrete composite beam construction further includes a first lifting lug and a second lifting lug. The first lifting lug is arranged above the load-bearing beam structure and close to the slewing mechanism, and the second lifting lug is arranged on the side of the load-bearing beam structure and close to the end of the load-bearing beam structure.

[0026] In some embodiments, there are four first lifting lugs, and the four first lifting lugs are arranged around the slewing mechanism.

[0027] In some embodiments, there are multiple second lifting lugs, and the multiple second lifting lugs are symmetrically arranged at both ends of the load-bearing beam structure.

[0028] Compared with the prior art, the beneficial effects of the present utility model are:

[0029] 1. The bridge deck installation system for the construction of steel-concrete composite beams provided by the utility model includes a bridge erection machine and a sling. The bridge erection machine includes a main beam, a trolley, a hoist, and a lifting mechanism. The sling includes a slewing mechanism and a load-bearing beam structure. Among them, the slewing mechanism can enable the load-bearing beam structure to carry the bridge deck to achieve radial rotation, improving the working efficiency of installing the bridge deck.

[0030] 2. Compared with using a crane for bridge deck installation, the bridge deck installation system for the construction of steel-concrete composite beams provided by the utility model does not require the construction of a hoisting site, is less affected by site restrictions, and saves construction costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the utility model and constitute a part of this application. The schematic embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an improper limitation to the utility model. In the drawings:

[0032] Figure 1 is a schematic structural diagram of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0033] Figure 2 is a front view of the structure of the sling of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0034] Figure 3 is a top view of the structure of the sling of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0035] Figure 4 is a side view of the structure of the sling of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0036] Figure 5 is a schematic structural diagram of the slewing mechanism of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0037] Figure 6 is a schematic diagram of the rotation of the sling of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0038] Figure 7 is a schematic diagram of the sling lifting the bridge deck of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model;

[0039] Figure 8 is a schematic diagram of the sling rotating and hoisting the bridge deck of an embodiment of the bridge deck installation system for the construction of steel-concrete composite beams of the utility model.

[0040] In the figure:

[0041] 1. Bridge erecting machine; 11. Main beam; 12. Overhead crane; 13. Hoist; 131. Drum; 132. Steel wire rope; 2. Sling; 21. Slewing mechanism; 211. Ear plate; 212. Axial rotating shaft; 213. Radial rotating shaft; 214. Fixing nut; 215. Fixing pin shaft; 216. Slewing gasket; 22. Load-bearing beam structure; 3. Bridge deck; 4. First lifting lug; 5. Second lifting lug. Detailed implementation manners

[0042] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] In the description of the present invention, it should be understood that the terms "center", "transverse", "longitudinal", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0044] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installation", "connection" and "coupling" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0045] Refer to the attached Figures 1 to 8 , which gives a schematic embodiment of the bridge deck installation system for the construction of steel-concrete composite beams proposed by the present invention. The bridge deck installation system for the construction of steel-concrete composite beams includes a bridge erecting machine 1 and a sling 2.

[0046] The bridge erecting machine 1 includes a main beam 11, a trolley 12 and a hoisting mechanism. A track is provided on the main beam 11, and the trolley 12 is arranged on the main beam 11 to move along the track of the main beam 11. The hoisting mechanism is arranged on the trolley 12, so when the trolley 12 moves along the track of the main beam 11, the hoisting mechanism moves with the trolley 12. The spreader 2 includes a slewing mechanism 21 and a load-bearing beam structure 22. The slewing mechanism 21 is connected to the hoisting mechanism to enable the hoisting mechanism to hoist or lower the spreader 2. The load-bearing beam structure 22 is connected to the slewing mechanism 21 to rotate with the slewing mechanism 21, and the load-bearing beam structure 22 is used for hoisting and connecting the bridge deck 3.

[0047] See the appendix Figure 4 and Figure 5 As shown in FIGS. and, the slewing mechanism 21 includes an ear plate 211, an axial rotating shaft 212 and a radial rotating shaft 213. A first mounting hole and a second mounting hole are provided on the ear plate 211. The first mounting hole is connected to the hoisting mechanism. The axial rotating shaft 212 is arranged in the second mounting hole. A third mounting hole is provided on the axial rotating shaft 212, and the radial rotating shaft 213 is arranged in the third mounting hole. The radial rotating shaft 213 is connected to the load-bearing beam structure 22. When the radial rotating shaft 213 is used as the rotating shaft, the radial rotation of the load-bearing beam structure 22 can be realized; when the axial rotating shaft 212 is used as the rotating shaft, the axial swing of the load-bearing beam structure 22 can be realized.

[0048] Considering the actual application comprehensively, in this embodiment, the hoisting mechanism is selected as a winch 13. The winch 13 includes a drum 131, and a steel wire rope 132 is wound and fixed on the surface of the drum 131. One end of the steel wire rope 132 is connected to the first mounting hole of the ear plate 211. The structure of the winch 13 is simple, and its volume and weight are relatively small. By winding steel wire ropes 132 of different lengths on the surface of the drum 131, a relatively large hoisting height can be achieved, and the hoisting height is flexible. In addition, the winch 13 also has the characteristics of high reliability, easy maintenance and low cost.

[0049] In order to improve the connection stability between the radial rotating shaft 213 and the axial rotating shaft 212, in this embodiment, the slewing mechanism 21 further includes a fixing nut 214, and the fixing nut 214 is sleeved on one end of the radial rotating shaft 213 to limit the positions of the radial rotating shaft 213 and the axial rotating shaft 212.

[0050] In order to further improve the connection stability, in this embodiment, the slewing mechanism 21 further includes a fixing pin 215, and the fixing pin 215 passes through the fixing nut 214 and the radial rotating shaft 213. The fixing pin 215 can still maintain a stable and reliable connection under the condition of bearing a large load, and the assembly of the fixing pin 215 is relatively simple and convenient for disassembly and maintenance.

[0051] In order to extend the service life of the spreader 2, in this embodiment, the slewing mechanism 21 further includes a slewing gasket 216, and the slewing gasket 216 is arranged between the fixing nut 214 and the axial rotating shaft 212. The setting of the slewing gasket 216 can evenly distribute the pressure over a larger area, thereby reducing the situation of excessive local pressure on the surface of the axial rotating shaft 212 resulting in deformation.

[0052] In order to conveniently connect the bridge deck 3, in this embodiment, the load-bearing beam structure 22 is a cuboid frame, and the bridge deck installation system for steel-concrete composite beam construction further includes a first lifting lug 4 and a second lifting lug 5. The first lifting lug 4 is arranged above the load-bearing beam structure 22 and close to the slewing mechanism 21, and the second lifting lug 5 is arranged on the side of the load-bearing beam structure 22 and close to the end of the load-bearing beam structure 22. There are four first lifting lugs 4, and the four first lifting lugs 4 are arranged around the slewing mechanism 21. There are multiple second lifting lugs 5, and the multiple second lifting lugs 5 are symmetrically arranged at both ends of the load-bearing beam structure 22. Specifically, refer to the appendix Figure 2 and Figure 3 , in this embodiment, there are 16 second lifting lugs 5, and 8 second lifting lugs 5 are respectively arranged at both ends of the load-bearing beam structure 22. At one end of the load-bearing beam structure 22, the 8 second lifting lugs 5 are symmetrically arranged on both sides of the load-bearing beam structure 22, that is, 4 second lifting lugs 5 are arranged on each side, among which 3 second lifting lugs 5 are arranged at a set distance, and the remaining 1 second lifting lug 5 is arranged close to the second lifting lug 5 at the outermost end.

[0053] In the above-mentioned exemplary embodiment, the bridge deck installation system for steel-concrete composite beam construction does not require the construction of a hoisting site, is less affected by site restrictions, and saves construction costs and time costs. In addition, the slewing mechanism of the bridge deck installation system for steel-concrete composite beam construction can enable the load-bearing beam structure to carry the bridge deck to achieve radial rotation, improving the working efficiency of installing the bridge deck.

[0054] The following combines the appendix Figures 1 to 8 to illustrate the working process of an embodiment of the bridge deck installation system for steel-concrete composite beam construction of the present utility model:

[0055] Install the bridge deck installation system for the construction of the steel-concrete composite beam at the set position of the construction site. The hoist 13 hoists the lifting appliance 2 to lift the lifting appliance 2 off the ground. The slewing mechanism 21 rotates around the radial rotating shaft 213 to radially rotate the load-bearing beam structure 22 by 90° so that the load-bearing beam structure 22 is parallel to the main beam 11. At this time, the transport vehicle has transported the bridge deck 3 into the gantry crane 1. The hoist 13 continues to hoist the lifting appliance 2 to make the lifting appliance 2 higher than the transport vehicle. The moving crane 12 moves the lifting appliance 2 to the corresponding lifting point of the bridge deck 3 and connects it with a steel wire rope and a snap ring. The hoist 13 continues to hoist the lifting appliance 2 to lift the lifting appliance 2 and the bridge deck 3 until the bridge deck 3 leaves the transport vehicle. Then the moving crane 12 reaches the designated installation position, and the hoist 13 lowers the lifting appliance 2 until it stops when the bridge deck 3 is 50 cm away from the top surface of the composite body. The slewing mechanism 21 rotates around the radial rotating shaft 213 to radially rotate the load-bearing beam structure 22 by 90°. At this time, the bridge deck 3 rotates accordingly to be in line with the transverse direction of the bridge. The hoist 13 continues to lower the lifting appliance 2. When the bridge deck 3 is at a position 15 cm away from the top surface of the composite body, use the functions of the front-back movement of the crane 12 and the left-right movement of the hoist trolley to complete the fine adjustment of the position of the bridge deck 3. The hoist 13 continues to lower the lifting appliance 2 to accurately install the bridge deck 3 in place. Repeat the steps until all the bridge decks 3 are installed.

[0056] Finally, it should be noted that the embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. For the same and similar parts among the embodiments, reference can be made to each other.

[0057] The above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features; without departing from the spirit of the technical solutions of the present invention, they should all be covered within the scope of the technical solutions claimed by the present invention.

Claims

1. A bridge deck installation system for the construction of a steel-concrete composite beam, characterized in that, Comprising: A bridge erecting machine, the bridge erecting machine comprising: A main beam, on which tracks are provided; A trolley, which is arranged on the main beam to move along the tracks of the main beam; A hoisting mechanism, which is arranged on the trolley; A spreader, the spreader comprising: A slewing mechanism, which is connected to the hoisting mechanism to lift or lower the spreader by the hoisting mechanism; A load-bearing beam structure, which is connected to the slewing mechanism to rotate with the slewing mechanism, and the load-bearing beam structure is used for hoisting and connecting bridge deck panels; Wherein, the slewing mechanism comprises: An ear plate, on which a first mounting hole and a second mounting hole are provided, and the first mounting hole is connected to the hoisting mechanism; An axial rotating shaft, which is arranged in the second mounting hole, and a third mounting hole is provided on the axial rotating shaft; A radial rotating shaft, which is arranged in the third mounting hole, and the radial rotating shaft is connected to the load-bearing beam structure.

2. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 1, wherein The hoisting mechanism is a winch.

3. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 2, wherein The winch comprises a drum, a steel wire rope is wound and fixed on the surface of the drum, and one end of the steel wire rope is connected to the first mounting hole.

4. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 1, characterized in that, The slewing mechanism further comprises a fixing nut, and the fixing nut is sleeved on one end of the radial rotating shaft to limit the positions of the radial rotating shaft and the axial rotating shaft.

5. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 4, characterized in that, The slewing mechanism further comprises a fixing pin shaft, and the fixing pin shaft penetrates through the fixing nut and the radial rotating shaft.

6. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 4, wherein, The slewing mechanism further comprises a slewing gasket, and the slewing gasket is arranged between the fixing nut and the axial rotating shaft.

7. The bridge deck installation system for the construction of steel-concrete composite beams according to claim 1, wherein, The load-bearing beam structure is a cuboid frame.

8. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 7, characterized in that, It further comprises a first lifting lug and a second lifting lug. The first lifting lug is arranged above the load-bearing beam structure and close to the slewing mechanism, and the second lifting lug is arranged on the side of the load-bearing beam structure and close to the end of the load-bearing beam structure.

9. The bridge deck installation system for the construction of steel-concrete composite beams according to claim 8, wherein, Four first lifting lugs are provided, and the four first lifting lugs are arranged around the slewing mechanism.

10. The bridge deck installation system for the construction of the steel-concrete composite beam according to claim 8, characterized in that, A plurality of second lifting lugs are provided, and the plurality of second lifting lugs are symmetrically arranged at both ends of the load-bearing beam structure.

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