CN202227255U - Cat anchor device for steel truss girder - Google Patents

Abstract

A cat anchor device for a steel truss girder comprises a base board (1), a bearing board (2) and reinforcing rib plates, wherein bolt holes (11) are arranged on the base board (1); the bearing board (2) is arranged at the middle part of the base board (1) and is vertically connected with the base board (1); the reinforcing rib plates are arranged on the side surface of the bearing board (2); therefore, the damage degree of the steel truss girder is small, and the moving speed is fast.

Description

steel truss anchor puller

1. Technical field

The utility model relates to a steel truss girder anchor puller, in particular to a steel truss girder anchor puller which is suitable for using a jack as the traction power and a steel strand or fine-rolled thick threaded steel bar as the traction rod.

2. Background technology

As an important bridge structure, steel truss girders are widely used, and the installation method is more commonly used by the vertical movement method. Whether it is vertical movement installation or pier top fine-tuning, it is necessary to push the steel truss girder, so it is used for The anchor puller for pushing steel truss girders is an important tool. At present, the vertical movement of steel truss girders is usually erected by dragging and pulling. Or the self-made rear support is tied and hung on the steel beam end beam or at the lower parallel connection node. The main problems in the setting of these rear anchor points are as follows: first, the connection workload between the rear anchor point and the steel truss girder is heavy and the firmness is poor, the connecting piece is easily damaged and the steel beam is easily damaged; second, the rear anchor point is easy to change position, and the beam The direction of the truss is not easy to control, and the deviation is constantly adjusted during the dragging process. The speed of the dragging is not easy to increase, and it is labor-intensive and time-consuming. Therefore, it is easy to damage the steel truss girder and the construction progress is slow.

3. Contents of the invention

In order to overcome the above-mentioned technical shortcomings, the purpose of this utility model is to provide a pushing tool that can be directly connected to the steel truss beam, so the damage to the steel truss beam is small and the moving speed is fast.

In order to achieve the above purpose, the technical solution adopted by the utility model is: it includes a bottom plate, a load-bearing plate and a reinforcing rib plate, and bolt holes are arranged on the bottom plate, and the force-bearing plate is arranged in the middle of the bottom plate and is arranged to be perpendicular to the bottom plate. For connection, reinforcing ribs are arranged on the side of the bearing plate.

Put the bolts in the bolt holes of the bottom plate, so that the bottom plate and the steel truss beam are fixedly connected, and the traction force acts on the bearing plate, and the steel truss girder moves through the bottom plate and the bearing plate. Due to the design of the base plate and the bearing plate, the traction force It acts on the steel truss girder through the bottom plate and bearing plate, and no longer directly acts on the steel truss girder. At the same time, the action point of the traction force and the bearing plate does not move anymore, so the damage to the steel truss girder is small and the moving speed is fast.

The utility model is designed, and the pulling beam perforation is arranged on the bearing plate.

The utility model is designed, the reinforcing ribs are set to include rear ribs, front ribs, side ribs and transverse partitions, two rear ribs are arranged on the rear side of the bearing plate, the longitudinal section of the rear ribs It is set as a triangle and one side is set to be connected with the bottom plate, and the other side is set to be connected with the load-bearing plate. A transverse diaphragm is arranged between the two rear ribs. Connection, two front ribs are arranged on the front side of the load-bearing plate, the longitudinal section of the front rib is set to be triangular, one side is set to be connected with the bottom plate, and the other side is set to be connected to the load-bearing plate, and the front rib is set Side ribs are arranged on the outer side of the side rib, the longitudinal section of the side rib is set to be triangular, one side is set to be connected with the bottom plate, and the other side is set to be connected with the bearing plate.

The technical effect of the utility model is that the bottom plate is made according to the splicing plate of the end beam of the steel truss girder. During the specific implementation, the anchor puller is used to replace the splicing plate of the end beam, and the high-strength bolts are used to firmly connect the steel truss girder. The temporary coupling member is also the rear support of the traction device. After the steel truss girder is pulled in place, the anchor puller can be replaced with the lower splicing plate of the end beam; the problem of easy damage and easy displacement of the anchor point after pulling is solved, and the pulling of the steel truss girder is more stable. The anchor puller is simple to manufacture and convenient to install and disassemble, and is especially more practical for a traction device that uses a jacking jack as the traction power and steel strands or fine-rolled thick steel bars as traction rods.

4. Description of the drawings

Fig. 1 is a schematic diagram of the utility model: Fig. 2 is a top view of Fig. 1:

Fig. 3 is a right side view of Fig. 1 .

5. Specific implementation methods

The accompanying drawing is an embodiment of the utility model, and this embodiment is described in detail in conjunction with the accompanying drawings, including a bottom plate 1, a bearing plate 2, a rear rib 3, a front rib 4, a side rib 5 and a diaphragm 6, Bolt holes 11 are provided on the bottom plate 1, and traction beam perforations 21 are provided on the bearing plate 2. Two rear ribs 3 are arranged on the rear side of the rear rib 3, the longitudinal section of the rear rib 3 is set to be triangular and one side is set to be connected with the bottom plate 1, and the other side is set to be connected with the bearing plate 2. 3 is provided with a transverse diaphragm 6, and the two ends of the transverse diaphragm 6 are respectively arranged to connect with the rear rib 3, and two front ribs 4 are arranged on the front side of the bearing plate 2, and the longitudinal direction of the front rib 4 The cross-section is set to be triangular and one side is set to be connected with the base plate 1, and the other side is set to be connected with the load-bearing plate 2. A side rib 5 is arranged on the outer side of the front rib 4, and the longitudinal section of the side rib 5 is set as It is triangular and one side is set to be connected with the bottom plate 1, and the other side is set to be connected with the bearing plate 2.

When using this embodiment, the bolts are passed through the bolt holes 11 of the bottom plate 1, so that the bottom plate 1 is fixedly connected with the steel truss girder. When the traction rope is not needed, the telescopic end of the hydraulic cylinder can be directly contacted with the bearing plate 2 , start the hydraulic cylinder, and move the steel truss beam through the bearing plate 2 and the bottom plate 1. When a traction rope is needed, connect the traction rope with the bearing plate 2 through the traction beam perforation 21, and then use the pulling force of the traction rope to make the steel truss girder move. Truss moves.

The anchor puller is set at the splicing plate of the cross beam at the bottom of the steel truss girder, temporarily replacing the original splicing plate, and using the original high-strength bolts to connect with the steel truss girder, which not only ensures that the overall connection of the steel truss girder is firm, but also can be used Rear support for steel truss beam traction. The anchor puller is assembled and welded by 9 steel plates, including the bottom plate, load-bearing plate, rib plate, and transverse diaphragm. The steel plates are all made of A3 steel, and the double-sided right-angle welds are used between each steel plate. The bottom plate is used for connection with the steel truss girder, and its manufacturing size and the size and arrangement of the reserved bolt holes must be the same as those of the splicing plate at the bottom of the lower cover plate of the steel truss girder end beam (at the positions of bearing plates, longitudinal ribs, and partitions) without bolt holes). The tension beam is reserved on the load-bearing plate, and the traction beam passes through the load-bearing plate and is directly locked on the anchor or fixture.

The utility model has the following characteristics:

1. Due to the design of the bottom plate 1 and the bearing plate 2, the traction force acts on the steel truss beam through the bottom plate 1 and the bearing plate 2, and no longer directly acts on the steel truss beam. At the same time, the traction force and the bearing plate 2 have different action points Then move, so the damage to the steel truss beam is small and the moving speed is fast.

2. The anchor puller uses the existing bolt holes and high-strength bolts at the splicing plate of the steel truss beam to connect, and will not cause damage to the steel beam structure.

3. The anchor puller is easy to install and disassemble, not easy to deform, and firmly connected with the steel truss girder, which enhances the stability of the steel truss girder during the pulling process, reduces the workload of deviation correction and process adjustment, and improves work efficiency.

4. Since most steel truss girders adopt stereotyped design at present, the anchor puller can be used repeatedly in the construction of steel truss girders of the same type.

In the technical field of steel truss anchor pullers; any bolt hole 11 is provided on the bottom plate 1, and the bearing plate 2 is arranged in the middle of the bottom plate 1 and connected vertically with the bottom plate 1. The technical content that the side of 2 is provided with reinforcing ribs is all within the scope of protection of the present utility model.

Claims (3)

1. A steel truss beam anchor puller; it is characterized in that: it includes a bottom plate (1), a load-bearing plate (2) and a reinforcing rib plate, and a bolt hole (11) is arranged on the bottom plate (1), and the load-bearing plate (2) It is arranged in the middle of the bottom plate (1) and is arranged to be vertically connected with the bottom plate (1), and a reinforcing rib is set on the side of the bearing plate (2). 2. The anchor puller for steel truss beams according to claim 1; its characteristic is that a pulling beam perforation (21) is provided on the bearing plate (2). 3. The steel truss beam anchor puller according to claim 1 or 2; it is characterized in that: the reinforcing ribs are set to include rear ribs (3), front ribs (4), side ribs (5) and The diaphragm (6) is provided with two rear ribs (3) on the rear side of the bearing plate (2). connection, the other side is set to be connected to the load-bearing plate (2), a transverse diaphragm (6) is arranged between the two rear ribs (3), and the two ends of the transverse diaphragm (6) are respectively arranged to be connected to the rear The ribs (3) are connected, and two front ribs (4) are arranged on the front side of the bearing plate (2). Connection, the other side is set to be connected with the bearing plate (2), and a side rib (5) is set on the outer side of the front rib (4), the longitudinal section of the side rib (5) is set to be triangular and one side It is set to be connected with the bottom plate (1), and the other side is set to be connected with the bearing plate (2).

Images