Post-tensioning prestressed member end plate

Abstract

The utility model relates to the prefabricated component forming field especially is related to a post-tensioning method prestressed component head plate. The head plate includes steel sheet and fixed edge, two fixed edges are symmetrically arranged on the upper and lower sides of the steel sheet, the fixed edge is equipped with the opening no. One that can pass through the reinforcing steel bar, the steel sheet is equipped with the strip-shaped recess, and the recess is equipped with the opening no. Two that can pass through the corrugated pipe on the side parallel with the steel sheet. The utility model discloses a head plate structure with strip-shaped recess is set up, and the post-tensioning method prefabricated component pouring one-time forming is completed, saves the end plugging step of two times, and then improves the post-tensioning method construction efficiency of prestressed precast slab.

Description

Technical Field

[0001] This utility model relates to the field of precast component molding, and in particular to a head plate for a post-tensioned prestressed component. Background Technology

[0002] Port and wharf construction is facing increasing environmental pressures, stringent schedule requirements, and higher standards of engineering quality. To address these challenges, modern port and wharf structures often utilize precast components. Among these, prestressed solid slabs are a common type of precast concrete used in port and wharf trestle construction, offering greater structural stability and safety. However, when using post-tensioning, the limitations of traditional prestressed solid slab end faces necessitate secondary concrete pouring at both ends after tensioning to protect the already completed sections. This secondary pouring not only compromises quality but also increases overall construction time, making it unsuitable for projects with tight schedules. Therefore, a type of end cap is needed to cast and shape the end faces of prestressed solid slabs, thereby improving the efficiency of post-tensioning construction of precast components. Utility Model Content

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings and provide a head plate for post-tensioned prestressed components, which has the advantages of simple structure, convenient disassembly and reusability.

[0004] This utility model provides a head plate for a post-tensioned prestressed member, including a steel plate and fixed edges. Two fixed edges are symmetrically arranged on the upper and lower sides of the steel plate. The fixed edges are provided with an opening for reinforcing bars to pass through. The steel plate is provided with a strip groove, and on the side of the groove parallel to the steel plate, there is an opening for corrugated pipes to pass through.

[0005] Furthermore, the cross-section of the groove is trapezoidal.

[0006] Furthermore, the cross-section of the fixed side is U-shaped.

[0007] Furthermore, the end plate also includes two square tubes, which are symmetrically arranged on the left and right sides of the steel plate and their upper and lower ends respectively abut against the side walls of the two fixed sides.

[0008] Furthermore, the end plate also includes a second square tube, which is located below the fixed edge at the top and its two ends abut against one side wall of each of the two square tubes.

[0009] Furthermore, the square tube is a rectangular steel tube.

[0010] Furthermore, the steel plate is 5mm thick.

[0011] Furthermore, before the prestressed component is formed and cast, a foaming agent is filled into the opening.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are: This utility model achieves one-time molding of post-tensioned precast components by setting a head plate structure with strip grooves, saving the secondary end sealing step and thus improving the construction efficiency of post-tensioned prestressed slabs. The head plate is composed of detachable components, each component is lightweight, and can be installed and dismantled manually, reducing the use of lifting equipment. It is easy to install and dismantle, can be reused, and improves the construction efficiency of precast components.

[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.

[0014] Undoubtedly, such and other objects of this invention will become more apparent after the following detailed description of the preferred embodiments, which are illustrated in various accompanying drawings and illustrations.

[0015] To make the above and other objects, features and advantages of this utility model more apparent and understandable, one or more preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0016] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0017] In the accompanying drawings, the same parts use the same reference numerals, and the drawings are schematic and not necessarily drawn to actual scale.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on such drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a post-tensioned prestressed member end plate according to the present invention; Figure 2 This is a front view of a head plate of a post-tensioned prestressed member according to the present invention; Figure 3 for Figure 2 Sectional view at point AA; Figure 4 This is a diagram showing the usage state of a post-tensioned prestressed member end plate according to this utility model; Figure 5This is a side view of the end face of the prestressed solid slab after it has been formed.

[0020] Explanation of key figure labels: 1. Steel plate; 11. Groove; 12. Two openings; 2. Fixed edge; 21. Opening 1; 3. Square tube one; 4. Square tube two; 5. Steel reinforcement; 6. Corrugated pipe. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0022] Reference Figure 1-5 This utility model provides a head plate for post-tensioned prestressed components, which is used for end face forming of prestressed precast components, including a steel plate 1, a fixed edge 2, a square tube 3, and a square tube 4.

[0023] The steel plate 1 is 5mm thick. Two fixed edges 2 are symmetrically arranged on the upper and lower sides of the steel plate 1, and the cross-section of the fixed edges 2 is U-shaped. An opening 21 for the reinforcing bar 5 to pass through is provided on the fixed edges 2. A strip groove 11 is provided on the steel plate 1, and the cross-section of the groove 11 is trapezoidal. An opening 12 for the corrugated pipe 6 to pass through is provided on the side of the groove 11 parallel to the steel plate 1. Square tube 3 is a rectangular steel pipe, and two square tubes 3 are symmetrically arranged on the left and right sides of the steel plate 1, with their upper and lower ends abutting against the side walls of the two fixed edges 2 respectively. Square tube 4 is located below the top fixed edge 2, and its two ends abut against the side walls of the two square tubes 3 respectively. The steel plate 1, square tube 3, and square tube 4 are welded together to form a whole.

[0024] The end cap plate is cut and welded on-site during its first use. It works in conjunction with the side steel formwork on both sides of the prestressed component. First, the bottom fixed edge 2 is bolted to the side steel formwork. Welding is then performed sequentially from bottom to top, ensuring that the reinforcing bar 5 can pass through opening 21. Opening 21 is then sealed with foaming agent to prevent grout leakage. The end cap plate and side steel formwork are assembled together to form the prestressed precast component mold system. After concrete pouring, the end cap plate and side steel formwork are removed, leaving the precast component ends suitable for post-tensioning construction. No secondary pouring is required; the component can be directly installed after tensioning.

[0025] It should be understood that the embodiments disclosed herein are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features as understood by those skilled in the art. It should also be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting.

[0026] The term "embodiment" in this specification refers to a specific feature or characteristic described in connection with an embodiment that is included in at least one embodiment of the present invention. Therefore, phrases or "embodiments" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0027] Furthermore, the described features or characteristics may be incorporated into one or more embodiments in any other suitable manner. In the above description, specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of embodiments of the present invention. However, those skilled in the art will understand that the present invention can be implemented without the aforementioned one or more specific details or may be implemented using other methods, components, materials, etc.

Claims

1. A post-tensioned prestressed member end plate, characterized in that, It includes a steel plate and fixed edges. Two fixed edges are symmetrically arranged on the upper and lower sides of the steel plate. The fixed edges are provided with an opening for the steel bar to pass through. The steel plate is provided with a strip groove. On the side of the groove parallel to the steel plate, there is an opening for the corrugated pipe to pass through.

2. The post-tensioned member closure plate of claim 1, wherein, The groove has a trapezoidal cross-section.

3. The post-tensioned member head plate of claim 1, wherein, The cross-section of the fixed side is U-shaped.

4. The post-tensioned member closure plate of claim 3, wherein, It also includes two square tubes, which are symmetrically arranged on the left and right sides of the steel plate, with their upper and lower ends respectively abutting against the side walls of the two fixed sides.

5. The post-tensioned member closure plate of claim 4, wherein, It also includes a second square tube, which is located below the fixed edge at the top and whose two ends abut against one side wall of each of the two square tubes.

6. The post-tensioned element head plate according to any one of claims 4-5, characterized in that The square tube is a rectangular steel tube.

7. The post-tensioned member head plate of any one of claims 1-5, wherein, The steel plate is 5mm thick.

8. The end plate of a post-tensioned prestressed member according to any one of claims 1-5, characterized in that, Before the prestressed component is formed and cast, a foaming agent is filled into the opening.

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