Fabricated precast concrete frame beam
The design of precast concrete frame beams solves the problems of long construction cycle and insufficient durability of frame beams, achieving efficient and low-cost slope reinforcement and improving construction safety and project quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN HIGHWAY PLANNING SURVEY DESIGN AND RESEARCH INSTITUTE LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-08-04
AI Technical Summary
Existing frame beams in slope engineering suffer from problems such as long construction period, high labor cost, low level of mechanization, difficulty in quality control, significant safety hazards, and insufficient strength and durability. Furthermore, precast anchor cable beams have high durability and connection costs in harsh environments.
The precast concrete frame beams are assembled, forming a cross-shaped structure by vertically setting the longitudinal and transverse beams. They are connected to the slope soil using anchor cables and fixed with mortise and tenon joints, avoiding exposed steel components and improving the deformation resistance and durability of the frame beams.
It improves the deformation resistance and durability of the frame beams, reduces project costs, meets the needs of rapid emergency slope reinforcement, and enhances construction efficiency and quality control capabilities.
Smart Images
Figure CN224591467U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of slope protection technology, and more specifically, to a precast concrete frame beam. Background Technology
[0002] Currently, in slope engineering construction, frame beam anchor cables are widely used due to their simple design and good reinforcement effect. However, the fabrication method of frame beams involves on-site formwork and grouting curing, which cannot meet the temperature and humidity standards required for concrete curing on-site. This results in the strength and durability of the completed anchor cable frame beams being lower than the design targets. Cast-in-place prestressed anchor cable frame structures have prominent problems such as long construction period, high labor costs, low level of mechanization, low efficiency, difficulty in quality control, and high safety hazards during construction. Furthermore, they cannot meet the requirements for rapid emergency slope reinforcement.
[0003] Meanwhile, the connections of the various components of the existing precast anchored concrete frame beams generally rely on exposed steel components, which have a weak ability to resist external environmental erosion. The durability of steel structures under harsh environmental conditions is not as good as that of concrete materials, and the cost of connecting steel components is high, which increases the project cost. Utility Model Content
[0004] The purpose of this utility model is to provide a precast concrete frame beam to improve the above-mentioned problems. To achieve the above objective, the technical solution adopted by this utility model is as follows:
[0005] This application provides a precast concrete frame beam, the structure including a first precast beam, a second precast beam, and anchor cables. The first precast beam includes a crossbeam and a longitudinal beam, the crossbeam and the longitudinal beam being arranged perpendicularly and on the same horizontal plane, with the crossbeam and the longitudinal beam having the same height. At least two second precast beams are provided, and several second precast beams are fixedly connected to the first precast beam. The anchor cables are provided on the first precast beam, with both ends of the anchor cables respectively located inside the first precast beam and in the slope soil.
[0006] Optionally, a positioning hole is provided at the geometric center of the first precast beam.
[0007] Optionally, the anchor cable is installed in the positioning hole, and an anchor head is provided at the end of the anchor cable away from the slope soil. A gasket is provided between the anchor head and the positioning hole.
[0008] Optionally, at least two first anchor bolt holes are provided on the crossbeam of the first precast beam, and the first anchor bolt holes are symmetrically arranged on both sides of the crossbeam.
[0009] Optionally, at least two second anchor bolt holes are provided on the longitudinal beam of the first precast beam, and the second anchor bolt holes are symmetrically arranged on both sides of the longitudinal beam.
[0010] Optionally, the second precast beam is a straight precast beam with a trapezoidal cross-section.
[0011] Optionally, a first slot is provided between the top surface and the two waists of the second precast beam.
[0012] Optionally, a groove is provided on the waist surface of the second precast beam, and the groove is provided on the waist surface near the side of the first precast beam.
[0013] Optionally, a second slot is provided at the bottom of each of the first precast beams.
[0014] Optionally, the second slot is provided with a protrusion.
[0015] The beneficial effects of this utility model are as follows:
[0016] This invention forms a cross-shaped first precast beam by vertically arranging longitudinal beams and transverse beams. The second precast beam can be fixedly connected to multiple ends of the first precast beam. When faced with large deformation of the slope, the frame beam structure can rotate accordingly, increasing its resistance.
[0017] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 This is a schematic diagram of a precast concrete frame beam structure.
[0020] Figure 2 This is a schematic diagram of the first precast beam structure described in an embodiment of this utility model.
[0021] Figure 3 This is a schematic diagram of the second precast beam structure described in an embodiment of this utility model.
[0022] Figure 4This is a schematic diagram of the anchor cable structure described in the embodiments of this utility model.
[0023] The markings in the diagram are: 1. First precast beam; 2. Second precast beam; 3. Anchor cable; 4. Protrusion; 5. First anchor bolt hole; 6. Positioning hole; 7. Groove; 8. Anchor head; 9. Gasket; 10. Second slot; 11. First slot; 12. Second anchor bolt hole. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0025] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a precast concrete frame beam. The structure includes a first precast beam 1, a second precast beam 2, and anchor cables 3. The first precast beam 1 includes a crossbeam and a longitudinal beam, which are arranged perpendicularly to each other and on the same horizontal plane. The crossbeam and the longitudinal beam have the same height. At least two second precast beams 2 are provided, and several second precast beams 2 are fixedly connected to the first precast beam 1. The anchor cables 3 are provided on the first precast beam 1, with both ends of the anchor cables 3 located inside the first precast beam 1 and in the slope soil, respectively. This utility model forms a cross-shaped first precast beam 1 by arranging the longitudinal beam and the crossbeam perpendicularly. The second precast beams 2 can be fixedly connected to multiple ends of the first precast beam 1. When facing large deformation of the slope, the frame beam structure can rotate accordingly, increasing its resistance. In addition, the first precast beam 1 and the second precast beam 2 of this utility model are precast components produced in the same manner, with strong compatibility, and can be adjusted accordingly for different engineering conditions.
[0027] In one specific embodiment of this disclosure, a positioning hole 6 is provided at the geometric center of the first precast beam 1, such as... Figure 4 As shown, the anchor cable 3 is installed in the positioning hole 6, and an anchor head 8 is provided at the end of the anchor cable 3 away from the slope soil. A gasket 9 is provided between the anchor head 8 and the positioning hole 6.
[0028] In one specific embodiment of this disclosure, at least two first anchor bolt holes 5 are provided on the crossbeam of the first precast beam 1, and the first anchor bolt holes 5 are symmetrically arranged on both sides of the crossbeam. At least two second anchor bolt holes 12 are provided on the longitudinal beam of the first precast beam 1, and the second anchor bolt holes 12 are symmetrically arranged on both sides of the longitudinal beam. By grouting the first anchor bolt holes 5 and the second anchor bolt holes 12, and grouting them until they overflow, the excavation of the corresponding slope area of the construction anchor cable 3 can be compensated to meet the installation requirements of the frame beam and form an installation contact surface. After the leveling and compensation are completed, the first anchor bolt holes 5 and the second anchor bolt holes 12 are reinforced by short anchor bolts.
[0029] like Figure 3 As shown, in one specific embodiment of this disclosure, the second precast beam 2 is a straight precast beam, and the cross-section of the second precast beam 2 is trapezoidal.
[0030] In one specific embodiment of this disclosure, a first slot 11 is provided between the top surface and the two waists of the second precast beam 2, and a groove 7 is provided on the waist surface of the second precast beam 2. The groove 7 is provided on the waist surface near the side of the first precast beam 1. A second slot 10 is provided at the bottom of each of the first precast beam 1, and a protrusion 4 is provided on the second slot 10. The first slot 11 is engaged with the end of the first precast beam 1, and the second slot 10 is engaged with the bottom of the waist of the second precast beam 2. The protrusion 4 on the first precast beam 1 and the groove 7 on the second precast beam 2 are mortised and tenoned. The first precast beam 1 and several second precast beams 2 are fixedly connected by mortise and tenon joints, which effectively avoids the problem of weak resistance to external environmental corrosion and low durability under harsh environmental conditions that exists when using exposed steel components for fixing. In addition, it greatly reduces the project cost while taking into account the stress conditions.
[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0034] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.
Claims
1. A precast concrete frame beam, characterized in that, include: The first precast beam (1) includes a crossbeam and a longitudinal beam. The crossbeam and the longitudinal beam are arranged vertically and are arranged on the same horizontal plane. The crossbeam and the longitudinal beam have the same height. The second precast beam (2) is provided in at least two forms, and several of the second precast beams (2) are fixedly connected to the first precast beam (1); Anchor cable (3) is installed on the first precast beam (1), and the two ends of the anchor cable (3) are respectively installed inside the first precast beam (1) and in the slope soil.
2. The precast concrete frame beam according to claim 1, characterized in that: The first precast beam (1) has a positioning hole (6) at its geometric center.
3. The precast concrete frame beam according to claim 2, characterized in that: The anchor cable (3) is installed in the positioning hole (6), and an anchor head (8) is provided at the end of the anchor cable (3) away from the slope soil. A gasket (9) is provided between the anchor head (8) and the positioning hole (6).
4. The precast concrete frame beam according to claim 1, characterized in that: At least two first anchor bolt holes (5) are provided on the crossbeam of the first precast beam (1), and the first anchor bolt holes (5) are symmetrically arranged on both sides of the crossbeam.
5. The precast concrete frame beam according to claim 1, characterized in that: At least two second anchor bolt holes (12) are provided on the longitudinal beam of the first precast beam (1), and the second anchor bolt holes (12) are symmetrically arranged on both sides of the longitudinal beam.
6. The precast concrete frame beam according to claim 1, characterized in that: The second precast beam (2) is a straight precast beam, and the cross section of the second precast beam (2) is trapezoidal.
7. The precast concrete frame beam according to claim 6, characterized in that: A first slot (11) is provided between the top surface and the two waists of the second precast beam (2).
8. The precast concrete frame beam according to claim 7, characterized in that: The second precast beam (2) has a groove (7) on its waist surface, and the groove (7) is located on the waist surface near the first precast beam (1).
9. The precast concrete frame beam according to claim 1, characterized in that: The bottom of the first precast beam (1) is provided with a second slot (10).
10. The precast concrete frame beam according to claim 9, characterized in that: The second slot (10) is provided with a protrusion (4).