Adjustable inhaul cable tensioning and anchoring device

Abstract

The utility model relates to an adjustable inhaul cable tensioning and anchoring device which comprises an anchoring seat and a tensioning and anchoring cushion block. One side of the anchoring seat is an inwards-concave arc-shaped inclined surface which is inclined outwards from top to bottom, and a strip-shaped sliding hole is formed in the inclined surface in the longitudinal direction; the tensioning anchoring cushion block comprises a top plate and a bottom plate, side plates are welded between the two sides of the top plate and the two sides of the bottom plate respectively, oppositely-penetrating inhaul cable through holes are formed in the middle of the top plate and the middle of the bottom plate, the bottom face of the bottom plate is an outwards-protruding arc-shaped face, and the arc radius of the bottom face of the bottom plate is consistent with the arc radius of the arc-shaped inclined face of the anchoring base. The arc-shaped bottom face of the tensioning and anchoring cushion block is supported on the arc-shaped inclined face of the anchoring base, and the inhaul cable through hole in the tensioning and anchoring cushion block penetrates through the strip-shaped sliding hole in the arc-shaped inclined face of the anchoring base. The position of the tensioning anchoring cushion block can be adjusted according to the angle change of the inhaul cable, it is guaranteed that the axis of the inhaul cable is consistent with the tensioning direction all the time, and cable force loss is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, relates to arch bridge construction by adopting an oblique-stayed buckle-hanging method, and specifically relates to an adjustable cable tensioning anchoring device. Background Art

[0002] The arch ribs of steel structure arch bridges are often installed and constructed by inclined-stayed buckle-hanging or rotational methods. Buckle towers need to be set up during construction. Anchor devices are set on both sides of the top of the buckle tower. The anchor device on one side is connected to the cantilever end of the arch rib with a buckle cable, and the anchor device on the other side is connected to the ground anchor with a back cable. The buckle and back cable are tensioned and anchored at the top of the buckle tower.

[0003] Since the back cable has a certain inclination angle with the horizontal plane, the tension anchoring side of the tower top anchoring device is usually set as an inclined plane. Ideally, the axis of the back cable should be perpendicular to the inclined plane of the anchoring device, so that the tensioning direction can be consistent with the axis of the back cable, and the cable force can be maximized. However, during the construction process, the length of the back cable needs to be determined according to the distance between the top of the tower and the anchor, and the arch rib line shape also needs to be adjusted during the construction process. At this time, the angle of the back cable will change, and it will not be perpendicular to the inclined plane of the anchoring device, resulting in the tension force direction of the tension end being inconsistent with the axis of the cable, which will cause cable force loss. In severe cases, it will cause the cable to bend or even break, posing certain safety hazards. Summary of the invention

[0004] The purpose of the utility model is to provide an adjustable cable tensioning anchoring device to solve the above problems, which can adjust the angle of the cable tensioning anchoring end according to the angle change of the cable to ensure that the tensioning direction is always consistent with the direction of the cable axis.

[0005] The technical solution of the utility model is as follows:

[0006] An adjustable cable tensioning anchor device, characterized in that: it comprises an anchor seat and a tensioning anchor pad; one side of the anchor seat is an inwardly concave arc-shaped inclined surface inclined outward from top to bottom, and a strip sliding hole is provided in the longitudinal direction on the upper edge of the inclined surface; the tensioning anchor pad comprises a top plate and a bottom plate, one side plate is welded between the two sides of the top plate and the bottom plate respectively, a cable through hole is provided between the top plate and the bottom plate, the bottom surface of the bottom plate is an outwardly convex arc-shaped surface, and the arc radius of the bottom surface of the bottom plate is consistent with the arc radius of the arc-shaped inclined surface of the anchor seat; the arc-shaped bottom surface of the tensioning anchor pad is supported on the arc-shaped inclined surface of the anchor seat, and the cable through hole on the tensioning anchor pad penetrates the strip sliding hole on the arc-shaped inclined surface of the anchor seat.

[0007] The utility model provides an arc-shaped sliding tensioning anchor pad on the anchor support, and the position of the tensioning anchor pad can be adjusted according to the change of the cable angle to ensure that the tensioning force direction of the tensioning anchor end of the back cable is always consistent with the axis of the back cable, thereby avoiding cable force loss and ensuring construction safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a side view structural schematic diagram of the utility model;

[0009] Figure 2 It is a front structural schematic diagram of the utility model;

[0010] Figure 3 It is a front view structural diagram of the anchor support;

[0011] Figure 4 It is a side view structural diagram of the tension anchor pad;

[0012] Figure 5 It is a schematic diagram of the plane structure of the tension anchor pad;

[0013] Figure 6 It is a schematic diagram of the use state of the utility model. DETAILED DESCRIPTION

[0014] like Figures 1 to 5 As shown, the utility model includes an anchor seat 1 and a tension anchor pad 2; one side of the anchor seat 1 is an inwardly concave arc-shaped inclined surface 11 inclined outward from top to bottom, and a strip sliding hole 12 is arranged in the longitudinal direction on the inclined surface; the tension anchor pad 2 includes a top plate 21 and a bottom plate 22, and a side plate 23 is welded between the two sides of the top plate and the bottom plate respectively, and a cable through hole 24 is arranged in the middle of the top plate and the bottom plate, and the bottom surface of the bottom plate 22 is a convex arc-shaped surface, and the arc radius of the bottom surface of the bottom plate is consistent with the arc radius of the arc-shaped inclined surface of the anchor seat; the arc-shaped bottom surface of the tension anchor pad 2 is supported on the arc-shaped inclined surface 11 of the anchor seat 1, and the cable through hole 24 on the tension anchor pad penetrates the strip sliding hole 12 on the arc-shaped inclined surface of the anchor seat.

[0015] During the specific implementation of the utility model, in order to ensure the supporting strength of the tension anchoring pad 2, a reinforcing plate 25 can be welded on both sides of the buckle cable through hole between the top plate and the bottom plate of the tension anchoring pad, and the two sides of each reinforcing plate are respectively welded to the inner walls of the two side plates.

[0016] like Figure 6 As shown, the usage of the utility model is as follows:

[0017] A tensioning anchor device of the utility model is respectively arranged on the top surface of both ends of the anchor beam 3, and the bottom of the anchor seat 1 is welded to the anchor beam 3, and the arc-shaped inclined surfaces of the two tensioning anchor devices are opposite; after the buckle tower 4 is erected, the anchor beam 3 is fixed on the top of the buckle tower 4, and a tensioning anchor pad 2 is placed on the arc-shaped inclined surface of each anchor seat 1, and one end of the buckle cable 5 is connected to the arch rib, and one end of the back cable 6 is connected to the anchor, and the tensioning anchor ends of the buckle cable 5 and the back cable 6 are respectively passed through the strip sliding hole and the cable through hole of the tensioning anchor device at both ends of the anchor beam, and the axis of the buckle back cable is perpendicular to the top plate of the tensioning anchor pad by sliding the tensioning anchor pad 2 up and down; a tensioning jack is arranged on the top plate of the tensioning anchor pad to tension and anchor the buckle back cable. When the angle of the buckle cable changes during the construction process, the position of the tensioning anchor pad on the anchor seat can be adjusted to anchor again, so that the buckle cable 5 and the top plate of the tensioning anchor pad 2 are always kept vertical.

Claims

1. An adjustable cable tensioning anchoring device, characterized in that: It comprises an anchor seat and a tension anchor pad; one side of the anchor seat is an inwardly concave arc-shaped inclined surface inclined outward from top to bottom, and a strip sliding hole is arranged in the longitudinal direction on the upper edge of the inclined surface; the tension anchor pad comprises a top plate and a bottom plate, one side plate is welded between the two sides of the top plate and the bottom plate respectively, a cable through hole is arranged in the middle of the top plate and the bottom plate, the bottom surface of the bottom plate is an outwardly convex arc-shaped surface, and the arc radius of the bottom surface of the bottom plate is consistent with the arc radius of the arc-shaped inclined surface of the anchor seat; the arc-shaped bottom surface of the tension anchor pad is supported on the arc-shaped inclined surface of the anchor seat, and the cable through hole on the tension anchor pad is opposite to the strip sliding hole on the arc-shaped inclined surface of the anchor seat.

2. The adjustable cable tensioning anchoring device according to claim 1, characterized in that: A reinforcing plate is welded between the top plate and the bottom plate of the tension anchoring pad at both sides of the buckle cable through hole, and both sides of each reinforcing plate are welded to the inner walls of the two side plates respectively.

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