Cable rope structure of steel arch vertical pressure conversion tower

Abstract

The utility model relates to a cable rope structure of a steel arch vertical pressure conversion tower, which comprises a steel arch tower frame and further comprises a lug plate arranged on the steel arch tower frame. The lifting oil cylinder is arranged on the lug plate; the prestressed steel strand is arranged in the lifting oil cylinder; the clamping piece type anchorage device is arranged on the outer side of the lifting oil cylinder and used for anchoring a prestressed steel strand; the pin shaft is used for connecting the steel arch tower and the lifting oil cylinder; and the piston pipe is arranged in the lifting oil cylinder. According to the utility model, by pre-tightening different steel strands, the four towers in the bridge direction form a whole under the action of the steel strands which are mutually anchored and apply prestress to reinforce, so that the overturning hazard in the vertical rotation process of the steel arch can be better prevented; the safety guarantee in the vertical rotation process of the steel arch is improved by aligning and adjusting the expansion value of the steel strands and pre-tightening the tower through the cable ropes.

Description

Technical Field

[0001] The utility model relates to the technical field of steel structure construction, in particular to a steel arch vertical rotation pressure tower cable wind rope structure. Background Art

[0002] During the construction of bottom-supported large-span arch bridges, the installation and production of the arch body involves the vertical rotation of the steel arch. After the arch ribs are vertically rotated, there is basically no condition for lateral adjustment. It also involves high-altitude operations, which are accompanied by a great safety risk factor. A single tower is used to withstand the vertical rotation of the body, and its stability and anti-overturning properties cannot be effectively guaranteed. In addition, during the force application of the tower, the two sides are prone to uneven force. In actual applications, the offset of the two sides of the tower often becomes larger due to untimely observation of the tower. Utility Model Content

[0003] In view of this, the utility model proposes a steel arch vertical rotation pressure tower cable wind rope structure, aiming to solve the problems existing in the prior art.

[0004] Specifically, the utility model provides a steel arch vertical rotation pressure tower cable wind rope structure, including a steel arch tower frame, and also includes:

[0005] A lug plate disposed on the steel arch tower;

[0006] A lifting cylinder disposed on the lug plate;

[0007] A prestressed steel strand disposed in the lifting cylinder;

[0008] A clip-type anchor disposed outside the lifting cylinder for anchoring the prestressed steel strand;

[0009] A pin shaft for connecting the steel arch tower and the lifting cylinder;

[0010] and a piston tube disposed inside the lifting cylinder.

[0011] On the basis of the above solution, it also includes: an oil pipe for connecting the oil pump and the lifting cylinder 3.

[0012] On the basis of the above scheme, the clip-type anchor comprises a clip assembly and a clip matching the clip assembly.

[0013] Based on the above solution, the clip assembly includes a first clip and a second clip.

[0014] The steel arch vertical rotation compression tower cable wind rope structure provided by the utility model transforms the individual forces of the four towers into an overall force through the force of the prestressed steel strands, thereby solving the problems of large displacement on both sides of the tower due to uneven force and the safety of the tower itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By reading the detailed description of the preferred embodiment below, various other advantages and benefits will become clear to those of ordinary skill in the art. The accompanying drawings are only used for the purpose of illustrating the preferred embodiment and are not considered to be limiting of the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0016] Figure 1 This is a structural schematic diagram of the steel arch vertical rotation tower cable wind rope structure in Example 1 (front view);

[0017] Figure 2 It is a structural schematic diagram of the steel arch vertical rotation tower cable wind rope structure in Example 1 (side view);

[0018] Figure 3 This is a structural schematic diagram of the steel arch vertical rotation tower cable wind rope structure in Example 1 (top view);

[0019] Figure 4 It is a structural schematic diagram (3D) of the steel arch vertical rotation pressure tower cable wind rope structure in Example 2. DETAILED DESCRIPTION

[0020] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0021] Example 1

[0022] like Figure 1 As shown, a steel arch vertical rotation tower cable wind rope structure includes a steel arch tower frame 1, and also includes an ear plate 2 arranged on the steel arch tower frame 1, a lifting cylinder 3 arranged on the ear plate 2, a prestressed steel strand 4 arranged in the lifting cylinder 3, a clip-type anchor 5 arranged on the outside of the lifting cylinder 3 for anchoring the prestressed steel strand 4, a pin shaft 6 for connecting the steel arch tower frame 1 and the lifting cylinder 3, an oil pipe 7 for connecting the oil pump and the lifting cylinder 3, and a piston tube 8 arranged inside the lifting cylinder 3.

[0023] Among them, the oil pump plays the role of a power element, responsible for converting mechanical energy into hydraulic energy; the combination of the oil pump and the lifting cylinder 3 determines the performance and efficiency of the entire hydraulic system; the hydraulic energy provided by the oil pump drives the cylinder to work, and the cylinder performs specific actions or tasks; the two work together to realize the functions of the hydraulic system.

[0024] As a specific embodiment, the clip-type anchor 5 includes a clip assembly 5-1 and a clip 5-2 matching the clip assembly 5-1.

[0025] The steel arch vertical rotation pressure tower cable wind rope structure includes a steel arch tower frame 1. A pin shaft 6 is used to fix the lifting cylinder 3 and the steel arch tower frame 1. The ear plate 2 on the steel arch tower frame 1 is connected to the lifting cylinder 3. The prestressed steel strands 4 are bundled in the lifting cylinder 3. The number of prestressed steel strands 4 needs to be bundled according to the number of plans. The clip-type anchor 5 is used for anchoring. The lifting cylinder 3 is connected to the oil pump with related methods. The installation position of the oil pipe should meet the requirements.

[0026] Example 2

[0027] This embodiment provides a specific implementation method of a steel arch vertical rotation tower cable based on the steel arch vertical rotation tower cable wind rope structure in Embodiment 1:

[0028] The steel arch vertical compression tower cable is mainly used to connect the four towers along the bridge direction. The transverse bridge direction is assembled by two groups of steel pipe piles. The compression tower cable wind rope is anchored along the bridge direction by using the lifting cylinder fixed at the two ends of the tower. The lifting cylinder 3 mainly uses the clip-type anchor 5 to connect the prestressed steel strand 4. The lifting cylinder 3 is used to give the prestressed steel strand 4 different forces to connect the adjacent towers, increase the stiffness and integrity of the tower along the bridge direction, and connect the towers at both ends with the ground anchor by the same method, forming a flexible connection with the ground, which increases the integrity of the tower.

[0029] like Figure 1 As shown, the piston tube 8 and the clip-type anchor 5 inside the lifting cylinder 3 are first checked. After the inspection is correct, the prestressed steel strands 4 are bundled on the ground. During the bundling process, the length of the prestressed steel strands 4 is ensured to meet the requirements, and the clip-type anchor 5 is used for anchoring. After the tower construction is completed, the lifting cylinder 3 is hoisted onto the tower ear plate 2 for installation, and the pin shaft 2 is used to connect and limit it, and the oil pipe 7 is connected to the oil pump.

[0030] like Figure 4 As shown, the operation steps of steel arch pressing tower cable are:

[0031] (1) The lifting cylinder 3 is installed in the cylinder bracket and connected to the anchor structure of the distribution beam at the top of the tower through the pin 6;

[0032] (2) 2-beam cable wind ropes are set at the top of the tower. The cable wind ropes are connected by a 100t lifting cylinder 3, a bottom anchor and a prestressed steel strand 4. The vertical lifting pier column steel cage is set on the outside of the inner mold;

[0033] (3) The bottom anchor prestressed steel strand 4 is connected to the tower top cable wind ear plate 2 through the bottom anchor bracket;

[0034] (4) After the prestressed steel strands 4 of the cable wind rope are adjusted neatly, the lifting cylinder 3 is operated to gradually and symmetrically tighten the steel strands to the designed pretension;

[0035] (5) Pre-tighten the tower cable between towers B and C, with a single-side cable pre-tightening of 14 tons;

[0036] (6) Pre-tighten the tower cable between towers A and B, with a single-side cable pre-tightening of 22 tons;

[0037] (7) Pre-tighten the tower cable between towers C and D, with a single-side cable pre-tightening of 26 tons;

[0038] During this process, attention should be paid to monitoring the left and right deviation of the tower frame while tightening the cable wind tension. By controlling the cable wind tension, the deviation of the tower frame can be controlled within ±5cm.

[0039] (8) During the loading process of the rotating cable, the tower displacement is monitored and the tower displacement is adjusted in real time within the control range through the cable wind.

[0040] Since the deadweight and span of each span of the steel arch are different, the three sets of tower-pressing cable wind ropes are pre-tightened with different forces. During the vertical rotation of the steel arch, the tower-pressing cable wind ropes play a role in catching the wind, so that the stability of a single tower is effectively guaranteed. In addition, the tower can also be adjusted by the expansion and contraction value of the tower-pressing cable wind ropes themselves.

[0041] Compared with conventional devices, the steel arch vertical rotation tower cable wind rope structure of the present application is mainly used for the vertical rotation of the steel arch, and mainly plays the role of catching the wind and stabilizing the steel arch tower 1, solving the technical problem of the stability of the tower in actual operation and the excessive offset of the two sides of the steel arch due to uneven force on the tower during this process.

[0042] The steel arch vertical rotation tower cable wind rope structure is not limited to the steel arch vertical rotation. It can also be used for other arch bridge structures according to the actual situation on site to ensure construction safety.

[0043] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A steel arch vertical rotation tower cable wind rope structure, comprising a steel arch tower (1), characterized in that: Also includes: A lug plate (2) arranged on the steel arch tower (1); A lifting cylinder (3) arranged on the ear plate (2); A prestressed steel strand (4) arranged in the lifting cylinder (3); A clip-type anchor (5) disposed outside the lifting cylinder (3) and used for anchoring the prestressed steel strand (4); A pin shaft (6) for connecting the steel arch tower (1) and the lifting cylinder (3); and a piston tube (8) arranged inside the lifting cylinder (3).

2. The steel arch vertical rotation tower cable wind rope structure according to claim 1 is characterized in that: Also includes: An oil pipe (7) is used to connect the oil pump and the lifting cylinder (3).

3. The steel arch vertical rotation tower cable wind rope structure according to claim 1 is characterized in that: The clip-type anchor (5) comprises a clip assembly (5-1) and a clip (5-2) matching the clip assembly (5-1).

4. The steel arch vertical rotation tower cable wind rope structure according to claim 3 is characterized in that: The clip assembly (5-1) comprises a first clip (5-1-1) and a second clip (5-1-2).

Images