Steel structure prestress high-vanadium cable double-cable tensioning tool

Abstract

The utility model relates to a steel structure prestress high vanadium cable double-cable tensioning tool which comprises a tensioning block and a fixing anchor cup arranged on one side of the tensioning block, the tensioning block comprises two clamping seats with the same shape, and the two clamping seats are vertically and symmetrically spliced into a whole and connected through a bolt. The centers of the side faces, right facing the fixed anchor cup, of the two clamping seats are connected with stress seats, two arc-shaped half grooves I symmetrical about the stress seats are formed in the sides, at the splicing position, of the two clamping seats correspondingly, and the arc-shaped half grooves I, right facing each other, of the two clamping seats at the splicing position are spliced to form a pull rod channel used for clamping and limiting a steel pull rod. Two arc-shaped semi-grooves II are formed in one side of the splicing position of the two stress seats, and the arc-shaped semi-grooves II, right opposite to each other, of the splicing position of the two stress seats are spliced to form an inhaul cable channel used for clamping and limiting an inhaul cable. According to the tensioning device, two high-vanadium cables can be tensioned at the same time, the tensioning synchronism and stability are good, and the construction period is short.

Description

Technical Field

[0001] The utility model relates to the technical field of tensioning tooling, in particular to a steel structure prestressed high-vanadium cable double-cable tensioning tooling. Background Art

[0002] High-vanadium cables are relatively common in bridge construction, and now also frequently appear in large venues and public buildings. The most common method of prestressed high-vanadium cable tensioning is single-lock tensioning, which is time-consuming and labor-intensive, and is a simple task that is repeated. Single-cable tensioning generally cannot guarantee synchronization, and has a long construction period and high cost. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a steel structure prestressed high-vanadium cable double-cable tensioning tool, which can tension two high-vanadium cables at the same time, has good tensioning synchronization and stability, and shortens the construction period.

[0004] The utility model is realized through the following technical solutions:

[0005] Provided is a steel structure prestressed high-vanadium cable double-cable tensioning tool, comprising a tensioning block and a fixed anchor cup arranged on one side of the tensioning block, the tensioning block comprising two clamping seats of the same shape, the two clamping seats are symmetrically assembled into one body and connected by bolts, the two clamping seats are connected to the side centers of the fixed anchor cups, the two clamping seats are respectively formed with two arc-shaped half grooves I symmetrical about the force-bearing seats on one side of the joint, the arc-shaped half grooves I facing each other at the joint of the two clamping seats are spliced ​​to form a rod channel for clamping and limiting steel pull rods, the two force-bearing seats are respectively formed with two arc-shaped half grooves II on one side of the joint, the arc-shaped half grooves II facing each other at the joint of the two force-bearing seats are spliced ​​to form a cable channel for clamping and limiting cables.

[0006] Furthermore, the clamping seat includes a main body and a plurality of reinforcing rib plates, the main body is H-shaped steel, and the reinforcing rib plates are welded between the flange plates of the H-shaped steel at intervals.

[0007] Furthermore, a through hole is provided on the web of the H-shaped steel, and the two clamping seats are connected by bolts arranged in the through holes on the web and by locking nuts.

[0008] Beneficial effects of the utility model:

[0009] The tensioning tooling of the utility model can be spliced ​​through two clamping seats, and the pull rod and the cable can be clamped and limited by the pull rod channel and the cable channel respectively, so as to avoid the misalignment and movement between the tooling and the cable during the tensioning process. At the same time, compared with the tooling in the prior art, because of the limitation of the pull rod channel and the cable channel, the tooling does not need to be hoisted, which can simplify the tensioning construction equipment. At the same time, the tensioning tooling of the utility model is more stable, safer and more reliable than the conventional tooling in construction, so as to avoid the losses caused by operating errors and ensure the safety of construction.

[0010] In addition, the tensioning tooling of the utility model is evenly stressed to ensure that the stress point is at the center of the tooling, effectively controlling the error caused by uneven stress on the cable. The two sides of one side of the clamping seat are used for the force application of the jack, and the force seat on the other side of the clamping seat is used to fix the force of the anchor cup. The force seat can effectively resist the bending moment, improve the overall strength of the tooling, and ensure the synchronization and stability of the tensioning of the two cables at the same time.

[0011] The tensioning tooling of the utility model is more compact than the conventional tooling, is completed by H-shaped steel welding, saves costs, and is more convenient to install. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 It is a structural schematic diagram of the clamping seat in the utility model.

[0014] Figure 3 It is a schematic diagram of the tensioning construction of the utility model.

[0015] As shown in the figure:

[0016] 1. Tension block, 2. Force bearing seat, 3. Pull rod channel, 4. Cable channel, 5. Reinforcement plate, 6. Clamping seat, 7. Arc half slot I, 8. Arc half slot II, 9. Bolt, 10. Hydraulic jack, 11. Steel pull rod, 12. Cable, 13. Fixed anchor cup. DETAILED DESCRIPTION

[0017] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0018] A prestressed high-vanadium cable double-cable tensioning tool for a steel structure comprises a tensioning block 1 and a fixed anchor cup 13 arranged on one side of the tensioning block 1, the tensioning block 1 comprises two clamping seats 6 of the same shape, the two clamping seats 6 are symmetrically assembled into one body and connected by bolts 9, the two clamping seats 6 are connected to the side centers of the fixed anchor cups 13, the two clamping seats 6 are respectively formed with two arcuate half grooves I7 symmetrical about the force-bearing seats 2 on one side of the joint, the arcuate half grooves I7 of the two clamping seats 6 facing each other at the joint are spliced ​​to form a rod channel 3 for clamping and limiting a steel tie rod 11, the two force-bearing seats 2 are respectively formed with two arcuate half grooves II8 on one side of the joint, the arcuate half grooves II8 of the two force-bearing seats 2 facing each other at the joint are spliced ​​to form a cable channel 4 for clamping and limiting a cable 12.

[0019] In the present invention, the clamping seat 6 includes a main body and a plurality of reinforcing ribs 5. The main body is an H-shaped steel. The reinforcing ribs 5 are welded between the flange plates of the H-shaped steel at intervals. A through hole is provided on the web of the H-shaped steel. The two clamping seats 6 are connected by bolts 9 provided in the through holes on the web and locking nuts.

[0020] When the utility model is used, it is considered that both upper and lower parallel high-vanadium cables and left and right parallel cables can be used. After the two clamping seats 6 are symmetrically spliced, the two cables 12 are clamped, and then the two clamping seats 6 are fastened by bolts 9 and nuts to form a tensioning block 1. The steel pull rod 11 passes through the pull rod channel 3 and is fixed on the cable connection ear plate. The hydraulic jack 10 is installed and connected to the hydraulic pump for tensioning. Compared with conventional tooling, the tensioning tooling of the utility model is evenly stressed to ensure that the stress point is at the center of the tooling, and effectively control the error caused by uneven force on the cable; it is more stable, safe, and reliable during construction, avoiding losses caused by operational errors; it has a compact structure, saves costs, and is more convenient to install.

[0021] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be achieved by or by adopting the existing technology, which will not be repeated here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that the changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not deviate from the purpose of the present invention and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A steel structure prestressed high vanadium cable double cable tensioning tool, comprising a tensioning block and a fixed anchor cup arranged on one side of the tensioning block, characterized in that: The tensioning block includes two clamping seats of the same shape, which are symmetrically assembled into one body and connected by bolts. The two clamping seats are connected with force seats at the center of the sides facing the fixed anchor cups. The two clamping seats are respectively formed with two arc-shaped half grooves I symmetrical to the force seats on one side of the joint. The arc-shaped half grooves I facing each other at the joint of the two clamping seats are spliced ​​to form a rod channel for clamping and limiting the steel rod. The two force seats are respectively formed with two arc-shaped half grooves II on one side of the joint. The arc-shaped half grooves II facing each other at the joint of the two force seats are spliced ​​to form a cable channel for clamping and limiting the cable.

2. The steel structure prestressed high vanadium cable double cable tensioning tooling according to claim 1 is characterized by: The clamping seat comprises a main body and a plurality of reinforcing rib plates, the main body is an H-shaped steel, and the reinforcing rib plates are welded between the flange plates of the H-shaped steel at intervals.

3. The steel structure prestressed high vanadium cable double cable tensioning tooling according to claim 2 is characterized by: A through hole is provided on the web of the H-shaped steel, and the two clamping seats are connected by bolts arranged in the through holes on the web and by locking nuts.

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