Dual-protection anchorage structure

Abstract

The utility model discloses an anchorage structure with double protection. The anchorage structure comprises a pre-stressed anchor cable, an anchor pad pier, a steel anchor box, a pull rod, a pull rod matched nut, a converter, a connecting piece and an embedded part. A connector pull rod penetrates through a preformed hole of a steel anchor box, a pre-stressed anchor cable penetrates through the steel anchor box to be tensioned, the pull rod is connected with an embedded part, one end of an anchor pad pier is connected with a concrete foundation, the other end of the anchor pad pier is connected with a main cable or a steel strand through the steel anchor box, and the steel anchor box converts force of the main cable or the steel strand to the pre-stressed anchor cable or the pull rod. The main cable is connected with the steel anchor box through the converter, and force is transmitted to the pre-stressed anchor cable. The pull rod device is additionally arranged on the anchor pad pier, force can be transmitted to other pre-stressed anchor cables of the anchor pad pier through the pull rod under the condition that the anchor cables at the anchoring position fail, and the stability and safety of the structure in the construction process are guaranteed. Through the combination of different types of components, the loss of materials in the construction process is reduced, and the cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of anchorage construction, specifically to an anchorage structure with dual protection. Background Technology

[0002] Traditional anchorage designs often focus solely on improving the safety factor of the anchor cables, such as increasing the number of anchor cables or extending their anchorage length. However, the anchorage structure still relies on a one-to-one correspondence between prestressed anchor cables and main cable strands. This results in poor overall anchor cable reliability, as the load on the main cable strands is borne by the other corresponding prestressed anchor cables. If one anchor cable fails, the corresponding strands lose their anchoring force, creating a significant safety hazard. Utility Model Content

[0003] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a double-protection anchor structure, which mainly solves the following problems: (1) The double-protection anchor structure firstly provides the anchoring force directly to the main cable for the prestressed anchor cable, and secondly, when a single anchor cable fails, the main cable force is transmitted to the remaining prestressed anchor cables through the anchor block and tie rod, ensuring the stability and safety of the structure during construction; (2) Using different types of structural combinations reduces material consumption and saves costs; (3) The anchor block, tie rod and embedded parts are constructed at the same time, reducing the construction cycle and increasing construction efficiency; (4) The prestressed anchor cable and connector form a force-bearing whole through the steel anchor beam and concrete anchor plate.

[0004] This utility model is implemented by constructing a dual-protection anchorage structure, characterized in that: the structure includes a prestressed anchor cable, an anchor block, a steel anchor box, a tie rod, a tie rod matching nut, a converter, a connector, and embedded parts; the steel anchor box has a pre-drilled hole through which the connector tie rod passes, and the prestressed anchor cable passes through the steel anchor box for tensioning; the tie rod is connected to the embedded parts; one end of the anchor block is connected to the concrete foundation, and the other end is connected to the main cable or steel strand through the steel anchor box; the steel anchor box converts the force of the main cable or steel strand to the prestressed anchor cable or tie rod; the main cable is connected to the steel anchor box through the converter, transmitting the force to the prestressed anchor cable.

[0005] According to the present invention, a double-protection anchor structure is characterized in that: the tie rod is a connector that connects the steel anchor box and the anchor pier, providing a second layer of protection after the prestressed anchor cable fails; the two ends of the tie rod are threaded sections and the middle section is unthreaded, the size of the tie rod is determined by calculation, and each tie rod is equipped with a nut.

[0006] According to the present invention, a dual-protection anchorage structure is characterized in that: a converter is provided on the steel anchor box, the converter being a transition device for connecting the main cable and the steel anchor box.

[0007] According to the present invention, a dual-protection anchor structure is characterized in that: the embedded part provides anchoring force to the tie rod; if the prestressed anchor cable fails, the main cable force is transmitted to the anchor pier through the embedded part and the tie rod; the embedded part is a steel plate with holes made according to the size of the prestressed anchor cable anchor hole, the size of the connector tie rod, and the spacing of the anchor tie rod.

[0008] This utility model has the following advantages: (1) Compared with the traditional one-to-one anchoring method, a tie rod device is added to the anchor pier. In the event of anchor cable failure at the anchoring position, the force can be transferred to the remaining prestressed anchor cables on the anchor pier through the tie rod, ensuring the stability and safety of the structure during construction. (2) This invention reduces material consumption and saves costs by combining different types of components. (3) The anchor cable and connector tie rod are formed into a whole by using concrete anchor piers and steel anchor boxes, reducing the construction cycle and increasing construction efficiency. (4) The double protection device is embedded in the concrete anchor pier, which does not occupy construction space and has a simple structure, making construction convenient. Attached Figure Description

[0009] Figure 1 Anchorage elevation layout drawing;

[0010] Figure 2 Anchorage top view;

[0011] Figure 3 This is a diagram of the tie rod connection;

[0012] Figure 4 yes Figure 3 Sectional view at point 1-1;

[0013] Figure 5 yes Figure 3 Sectional view at point 2-2 in the middle;

[0014] Figure 6 This is a schematic diagram of the anchor plate.

[0015] Wherein: 1—steel anchor box; 2—converter; 3—tie rod; 4—embedded part; 5—tie rod matching nut; 6—main cable; 7—prestressed anchor cable; 8—anchor; 9—connector; 10—anchor pier; 11—concrete anchor beam foundation. Detailed Implementation

[0016] The following will be combined with the appendix Figures 1-6 This utility model will be described in detail, and the technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0017] This utility model provides a dual-protection anchor structure, as shown in the figure, which can be implemented as follows: The structure includes a prestressed anchor cable 7, an anchor block 10, a steel anchor box 1, a tie rod 3, a tie rod matching nut 5, a converter 2, a connector 9, and an embedded part 4. The steel anchor box 1 has a pre-drilled hole through which the connector tie rod passes, and the prestressed anchor cable 7 passes through the steel anchor box 1 for tensioning. The tie rod 3 is connected to the embedded part 4. One end of the anchor block 10 is connected to the concrete foundation, and the other end is connected to the main cable 6 or steel strand through the steel anchor box 1. The steel anchor box 1 transfers the force of the main cable 6 or steel strand to the prestressed anchor cable 7 or tie rod. The main cable 6 is connected to the steel anchor box 1 through the converter 2, transmitting the force to the prestressed anchor cable.

[0018] In the implementation of the dual-protection anchorage structure described in this application, the tie rod 3 is a connector connecting the steel anchor box 1 and the anchor pier 10, providing a second layer of protection after the prestressed anchor cable fails. The tie rod 3 has threaded sections at both ends and an unthreaded section in the middle. The size of the tie rod is determined by calculation, and each tie rod is equipped with a nut 5.

[0019] In the implementation of the dual-protection anchorage structure described in this application, a converter 2 is provided on the steel anchor box 1. The converter 2 is a transition device for connecting the main cable 6 and the steel anchor box 1.

[0020] In the implementation of the dual-protection anchor structure described in this application, the embedded part 4 provides anchoring force to the tie rod. If the prestressed anchor cable fails, the force of the main cable 6 is transmitted to the anchor pier 10 through the embedded part 4 and the tie rod 3. The embedded part 4 is a steel plate with holes made according to the size of the prestressed anchor cable anchor hole, the size of the connector tie rod, and the spacing of the anchor tie rod.

[0021] The following is a detailed description of a dual-protection anchorage structure implementation of this application;

[0022] (1) Prestressed anchor cable: The length of the prestressed anchor cable is determined by calculation.

[0023] (2) Anchor block: An important force transmission device, one end is connected to the concrete foundation, and the other end is connected to the main cable or steel strand through the steel anchor box. Through calculation, it is ensured that the anchor block can resist the local tensile force provided by the tie rod. When the prestressed anchor cable fails, the cable force of the main cable can be transferred to the other prestressed anchor cables through the tie rod and the anchor block.

[0024] (3) Steel anchor box: a force transmission device that transfers the force of the main cable or steel strand to the prestressed anchor cable or tie rod.

[0025] (4) Tie rod: A connector that connects the steel anchor box and the anchor pier, providing a second layer of protection after the prestressed anchor cable fails. The two ends of the tie rod are threaded and the middle is unthreaded. The size of the tie rod is determined by calculation, and each tie rod is equipped with a nut.

[0026] (5) Converter: A transition device that connects the main cable and the steel anchor box.

[0027] (6) Embedded parts: These provide anchoring force to the tie rods. If the prestressed anchor cable fails, the main cable force is transferred to the anchor pier through the embedded parts and the tie rods. The embedded parts are made of a steel plate with holes cut according to the size of the prestressed anchor cable anchor hole, the size of the connector tie rod, and the spacing of the anchor tie rods. The dimensions and thickness of the anchor plate are determined by calculation.

[0028] The construction of the double protection structure for the anchorage is as follows:

[0029] (1) Anchor selection. The size of the anchor block and the spacing of the prestressed anchor cables shall be determined according to the actual conditions of the construction site.

[0030] (2) Material processing. Based on the calculation, determine the specific dimensions of the embedded parts and tie rods, the length of the anchorage section and the free section of the prestressed anchor cable, and draw up the construction drawings.

[0031] (3) Anchorage and prestressed anchor cable construction. According to the design drawings, the anchorage is constructed. During the process of binding the anchor plate reinforcement, the position of the embedded parts is accurately located according to the coordinates. After the positioning is completed, the tie rod is connected to the embedded parts. After all the embedded parts are constructed, the formwork is closed and concrete is poured. After the concrete reaches the required level, the prestressed anchor cable is drilled and the prestressed anchor cable is constructed.

[0032] (4) Steel anchor box installation. After the prestressed anchor cable construction is completed, the pre-drilled hole of the steel anchor box is passed through the connector tie rod, and the prestressed anchor cable is passed through the steel anchor box for tensioning. After tensioning is completed, the steel anchor box is fixed to the tie rod to achieve the dual protection of prestressed anchor cable and anchor rod.

[0033] (5) Main cable installation. The main cable is connected to the steel anchor box through a converter to transfer the force to the prestressed anchor cable.

[0034] The advantages of this patent are as follows: (1) Compared with the traditional one-to-one anchoring method, a tie rod device is added to the anchor pier. In the event of anchor cable failure at the anchoring position, the force can be transferred to the remaining prestressed anchor cables on the anchor pier through the tie rod, ensuring the stability and safety of the structure during construction. (2) This patent reduces material consumption and saves costs during construction by combining different types of components. (3) The anchor cable and connector tie rod are formed into a whole by using concrete anchor piers and steel anchor boxes, reducing the construction cycle and increasing construction efficiency. (4) The double protection device is embedded in the concrete anchor pier, which does not occupy construction space and has a simple structure, making construction convenient.

[0035] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A double-protected anchorage structure, characterized in that; The structure includes prestressed anchor cables, anchor blocks, steel anchor boxes, tie rods, tie rod nuts, converters, connectors, and embedded parts. The steel anchor box has pre-drilled holes through which the connector tie rods pass, and the prestressed anchor cables pass through the steel anchor box for tensioning. The tie rods are connected to the embedded parts. One end of the anchor block is connected to the concrete foundation, and the other end is connected to the main cable or steel strand through the steel anchor box. The steel anchor box transfers the force from the main cable or steel strand to the prestressed anchor cables or tie rods. The main cable is connected to the steel anchor box through the converter, transmitting the force to the prestressed anchor cables.

2. The anchorage structure with dual protection according to claim 1, characterized in that; The tie rod is a connector that connects the steel anchor box and the anchor pier, providing a second layer of protection after the prestressed anchor cable fails. The tie rod has threaded sections at both ends and an unthreaded section in the middle. The size of the tie rod is determined by calculation, and each tie rod is equipped with a nut.

3. The anchorage structure with dual protection according to claim 1, characterized in that; A converter is installed on the steel anchor box. The converter is a transition device used to connect the main cable and the steel anchor box.

4. The anchorage structure with dual protection according to claim 1, characterized in that... The embedded part provides anchoring force to the tie rod. If the prestressed anchor cable fails, the main cable force is transferred to the anchor pier through the embedded part and the tie rod. The embedded part is a steel plate with holes made according to the size of the prestressed anchor cable anchor hole, the size of the connector tie rod, and the spacing of the anchor tie rod.

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