Novel UHPC prefabricated part connecting structure
By setting embedded steel plates at the corners of UHPC components and fixing them with connecting steel and anchor bars, the connection problem of UHPC prefabricated components was solved, realizing a fast and economical construction method and improving the convenience and economy of construction.
Patent Information
- Application Number
- CN202423228386.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Traditional connection methods are difficult to meet the connection requirements of UHPC precast components, resulting in material waste and increased structural weight, which is detrimental to the rationality and economy of the structure.
Pre-embedded steel plates are installed at the corners of the UHPC components and fixedly connected to the pre-embedded steel plates by connecting steel sections, combined with anchor bars for anchoring, to form a stable connection structure.
It enables rapid and accurate connection between UHPC prefabricated components, reducing construction difficulty and improving the economy and convenience of construction.
Smart Images
Figure CN223867427U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of bridge construction technology, specifically to a novel UHPC prefabricated component connection structure. Background Technology
[0002] Currently, precast bridge structures are widely used in the industry due to their rapid construction, reliable quality, environmental friendliness, and standardized construction. The connection methods between precast components have also evolved accordingly. Traditional connection methods mainly include sleeve grouting connections, grout anchor connections, and wet joint connections. Compared with traditional precast concrete components, UHPC precast components are often much smaller in size. Using traditional connection methods for precast concrete components is difficult to meet the connection requirements of UHPC components. Increasing the size of UHPC components to accommodate traditional connection methods would result in material waste and increased structural weight, which is detrimental to the rationality and economy of the structure. Summary of the Invention
[0003] The purpose of this utility model is to provide a new type of UHPC precast component connection structure to address the shortcomings of the existing technology. By setting pre-embedded steel plates on the UHPC components to be connected and using connecting steel profiles, it facilitates rapid and standardized construction, taking into account factors such as project cost, construction convenience, and construction standardization.
[0004] The objective of this utility model is achieved through the following technical solution:
[0005] A novel UHPC prefabricated component connection structure includes a first UHPC component and a second UHPC component, wherein the corner points of the first UHPC component and the second UHPC component are connected. The structure is characterized by: embedded steel plates being respectively embedded at the corner points of the first UHPC component and the second UHPC component, with the positions of the two embedded steel plates corresponding to each other; a connecting steel section being provided between the two embedded steel plates; one side of the connecting steel section being fixedly connected to one embedded steel plate, and the other side of the connecting steel section being fixedly connected to another embedded steel plate.
[0006] Anchor bars are provided on the back of the embedded steel plate, and each embedded steel plate is anchored to the corresponding first UHPC component or second UHPC component by the anchor bars.
[0007] Along the extension direction of the pre-embedded steel plate, a plurality of connecting steel sections are arranged at intervals between the two pre-embedded steel plates.
[0008] The advantages of this invention are: it is highly practical, solves the connection problem between UHPC precast components, proposes a fast and accurate connection method between UHPC precast components, reduces the difficulty of engineering construction, and makes construction more economical and convenient. Under the condition of meeting the construction technology requirements, the structure is easy to construct, economical and reasonable, and has good results, making it highly valuable for promotion and use. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the connection of the UHPC prefabricated components of this utility model;
[0010] Figure 2 This is a detailed elevation view of the connection point A of this utility model.
[0011] Figure 3 This is a detailed plan view of the connection point A of this utility model. Detailed Implementation
[0012] The features and other related features of this utility model will be further described in detail below with reference to the accompanying drawings and embodiments, so as to facilitate the understanding of those skilled in the art:
[0013] like Figure 1-3 As shown in the figure, the labels represent: UHPC component 1, UHPC component 2, embedded steel plate 3, embedded steel plate 4, anchor bar 5, and connecting steel 6.
[0014] Example: Figures 1 to 3 As shown, the implementation of the novel UHPC prefabricated component connection structure in this embodiment includes the following process:
[0015] First, prefabricated components such as UHPC component 1 and UHPC component 2 are produced in sections in the factory. In this embodiment, UHPC component 1 and UHPC component 2 are UHPC assembly template components for the cap beam. UHPC component 1 is a prefabricated UHPC web, and UHPC component 2 is a prefabricated UHPC base plate. UHPC component 2 needs to be assembled between the two UHPC components 1 set up on both sides.
[0016] During prefabrication in the factory, anchor bars 5 are welded to the back of embedded steel plates 3 and 4 respectively. The embedded steel plates 3 of UHPC component 1 and 4 of UHPC component 2 are positioned at their respective connection points to ensure the connection strength between the embedded steel plates and the UHPC component. Further, the anchor bars 5 of the embedded steel plates 3 are welded and fixed to the reinforcing bars of UHPC component 1; similarly, the anchor bars 5 of the embedded steel plates 4 are welded and fixed to the reinforcing bars in UHPC component 2. UHPC component 1 and UHPC component 2 are then poured and cured until they reach their design strength.
[0017] Secondly, the prefabricated components such as UHPC component 1 and UHPC component 2 are transported to the construction site and then assembled. After the prefabricated components are transported to the construction site, they are positioned on a jig so that the embedded steel plate 3 of UHPC component 1 and the embedded steel plate 4 of UHPC component 2 are close together and perpendicular. Connecting steel 6 is used to weld and fix them to the embedded steel plates 3 and 4, thereby forming UHPC component 1 and UHPC component 2 into a whole.
[0018] like Figure 3 As shown, in this embodiment, to ensure the connection strength between UHPC component 1 and UHPC component 2, both embedded steel plates 3 and 4 are steel plates with a certain extension length along the longitudinal direction of the components. At this time, three connecting steel sections 6 are evenly spaced along the extension direction of embedded steel plates 3 and 4, connecting embedded steel plates 3 and 4 to ensure the connection performance and integrity between UHPC component 1 and UHPC component 2.
[0019] This embodiment utilizes a novel connection method for UHPC prefabricated components, solving the problem of rapid and accurate connection between UHPC prefabricated components, reducing the difficulty of engineering construction, and making construction more economical and convenient. It has good technical and economic advantages, significant social benefits, and broad application prospects.
[0020] Although the above embodiments have described the concept and embodiments of the present invention in detail with reference to the accompanying drawings, those skilled in the art will recognize that various improvements and modifications can still be made to the present invention without departing from the scope of the claims, and therefore will not be elaborated here.
Claims
1. A novel UHPC prefabricated component connection structure, comprising a first UHPC component and a second UHPC component, wherein the first UHPC component and the second UHPC component are connected at their corner points, characterized in that: Pre-embedded steel plates are respectively embedded at the corner positions of the first UHPC component and the second UHPC component, with the positions of the two pre-embedded steel plates corresponding to each other. A connecting steel section is provided between the two pre-embedded steel plates. One side of the connecting steel section is fixedly connected to one pre-embedded steel plate, and the other side of the connecting steel section is fixedly connected to another pre-embedded steel plate. Anchor bars are provided on the back of the pre-embedded steel plates, and each pre-embedded steel plate is anchored to the corresponding first UHPC component or second UHPC component by the anchor bars.
2. The novel UHPC prefabricated component connection structure according to claim 1, characterized in that: Along the extension direction of the pre-embedded steel plate, a plurality of connecting steel sections are arranged at intervals between the two pre-embedded steel plates.