Demonstration model for simulating beam-column joint steel bar structure
By designing a detachable beam-column joint reinforcement construction demonstration model, the problem of students having difficulty understanding the beam-column joint reinforcement construction was solved, achieving the effect of portable teaching and architectural science popularization. The components are simple and the materials are widely available.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGDU IND VOCATIONAL TECHN COLLEGE
- Filing Date
- 2025-02-07
- Publication Date
- 2026-04-14
AI Technical Summary
Beginners, especially vocational school students, find it difficult to understand the complex steel reinforcement structure at the junction of beams and columns in reinforced concrete frame structures. Existing teaching tools are limited by construction schedules and safety management, making it difficult to conduct convenient simulation demonstrations.
A demonstration model simulating the reinforcement structure of a beam-column joint was designed, including a base plate, longitudinal bars, transverse bars, and a transparent square plate. These components are assembled into a detachable beam-column joint model through holes, slots, and threaded connections to simulate different types of reinforcement structures.
It has developed a portable and detachable teaching tool that can demonstrate complex steel reinforcement structures in the classroom, improve learning interest and teaching quality, and can also be used for architectural science popularization. The components are simple and the materials are widely available.
Smart Images

Figure CN224123058U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of teaching demonstration tools, and in particular relates to a demonstration model that simulates the steel reinforcement structure of beam-column joints. Background Technology
[0002] The steel reinforcement at the beam-column joints in reinforced concrete frame structures is very complex. For beginners, especially vocational school students, understanding these complex steel reinforcement structures can be difficult. Visiting construction sites for learning can be limited by factors such as construction progress, site safety management, and students' prior knowledge. Therefore, there is a need for a portable demonstration device that can be disassembled and repeatedly simulate various types of complex steel reinforcement structures at beam-column joints. This device could demonstrate the complex steel reinforcement structures of top beam edge columns, top beam middle columns, top beam corner columns, and middle beam middle columns in frame structures, thereby increasing student interest and improving teaching quality. This demonstration device can also serve as a tool for popularizing architectural science to the general public. Utility Model Content
[0003] To achieve the above objectives, this utility model provides a demonstration model simulating the reinforcement structure of a beam-column joint, including a base plate with several insertion holes. Longitudinal rods are inserted into the insertion holes, and several first square plates are fitted onto the four longitudinal rods. Horizontal rods are symmetrically arranged between adjacent longitudinal rods, and second square plates are inserted between the horizontal rods in the same vertical plane. Insertion rod assemblies simulating reinforcement are respectively provided on the first and second square plates. Both the first and second square plates are made of transparent material.
[0004] Preferably, the longitudinal rod has several sets of mutually perpendicular first and second insertion holes, and the transverse rod is inserted into the first and second insertion holes.
[0005] Preferably, square pins are fixed to both ends of the transverse rod, and the square pins are inserted into the first and second insertion holes.
[0006] Preferably, the transverse bar has a non-penetrating slot, and the second square plate is inserted into the non-penetrating slot.
[0007] Preferably, the insertion rod assembly includes a right-angle bent circular rod, one end of which is provided with a threaded hole, one end of which is threadedly connected to a circular rod, and one end of which is provided with a threaded section, and the threaded hole is threadedly connected to the threaded section.
[0008] Preferably, the first square plate has a plurality of circular holes of different sizes, and the right-angled curved circular rod is inserted into the circular holes.
[0009] Preferably, the second square plate has a plurality of circular holes of different sizes, and the circular rod is inserted into the circular holes.
[0010] Preferably, the first square plate has a square hole at its end, which is used to fit the longitudinal rod.
[0011] Preferably, the bottom end of the base plate is fixedly connected with a plurality of casters with self-locking function.
[0012] Compared with the prior art, the present invention has the following advantages and technical effects:
[0013] 1) This utility model can be assembled by selecting the corresponding components according to the required beam and column dimensions to demonstrate the steel reinforcement structure in actual engineering projects;
[0014] 2) Especially the complex steel reinforcement structure functions of complex nodes with simulated demonstration frame structures, such as top beam side columns, top beam middle columns, top beam corner columns, and middle beam middle columns;
[0015] 3) It has a portable and detachable function, which can be easily carried to classrooms and other ordinary teaching places, without being restricted by teaching conditions. Learners can assemble and demonstrate it themselves.
[0016] 4) This demonstration device can also be used as a demonstration tool for popularizing architectural science;
[0017] 5) The components and their connection methods are simple and can be made of wood, stainless steel, aluminum alloy, organic polymer materials, etc., with wide availability of materials, simple manufacturing, and strong practicality. Attached Figure Description
[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments and descriptions of this application are used to explain this application and do not constitute an undue limitation of this application. In the drawings:
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a top view of the present invention;
[0021] Figure 3 This is a structural schematic diagram of the base plate;
[0022] Figure 4 This is a structural schematic diagram of the longitudinal bar;
[0023] Figure 5 This is a structural schematic diagram of the horizontal bar;
[0024] Figure 6A schematic diagram of a right-angle bent circular rod;
[0025] Figure 7 This is a schematic diagram of a circular rod.
[0026] In the diagram: 1. Base plate; 2. Caster wheel; 3. Insertion hole; 4. Longitudinal rod; 5. First insertion hole; 6. Second insertion hole; 7. Transverse rod; 8. Non-penetrating slot; 9. Square pin; 10. First square plate; 11. Square hole; 12. Circular hole; 13. Second square plate; 14. Circular hole; 15. Circular rod; 16. Threaded section; 17. Right-angle bent circular rod; 18. Threaded hole. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0029] See attached document Figures 1-7 As shown, this utility model provides a demonstration model simulating the reinforcement structure of a beam-column joint, including a base plate 1, a plurality of insertion holes 3 on the base plate 1, longitudinal rods 4 inserted into the insertion holes 3, a plurality of first square plates 10 sleeved on the four longitudinal rods 4, symmetrically arranged transverse rods 7 inserted between adjacent longitudinal rods 4, and second square plates 13 inserted between the transverse rods 7 in the same vertical plane. The first square plates 10 and the second square plates 13 are respectively provided with insertion rod assemblies simulating reinforcement, and both the first square plates 10 and the second square plates 13 are made of transparent material.
[0030] The first square plate 10 and the second square plate 13 are made of transparent material, which makes them easy to observe and demonstrate.
[0031] During the demonstration, the spacing between two adjacent holes 3 on the base plate for inserting longitudinal rods 4 is used to adjust the length and width of the column in the horizontal direction; the first square plate 10 is used to simulate the length and width of the column in the horizontal direction, and the round hole 12 on it is used to simulate the arrangement of the reinforcing bars of the column; the second square plate 13 is used to simulate the height of two beams that intersect in the horizontal direction, and the round hole 14 on it is used to simulate the arrangement of the reinforcing bars on the beam.
[0032] During the demonstration, four longitudinal rods 4 are inserted into the insertion holes 3. Then, the first square plate 10 is sequentially placed on the longitudinal rods 4. Subsequently, a transverse rod 7 is inserted between adjacent longitudinal rods 4, and a second square plate 13 is inserted between the transverse rods 7. Insert rod assemblies are inserted into the circular insertion holes of the first square plate 10 and the second square plate 13. The transverse rods 7, the longitudinal rods 4, the first square plate 10 and the second square plate 13 can form the outline of the beam-column node.
[0033] The scheme is further optimized by providing several sets of mutually perpendicular first insertion holes 5 and second insertion holes 6 on the longitudinal rod 4, and a transverse rod 7 is inserted into the first insertion hole 5 and the second insertion hole 6.
[0034] The first socket 5 and the second socket 6 are designed to facilitate the insertion of the horizontal rod 7.
[0035] The scheme is further optimized by fixing square pins 9 at both ends of the horizontal rod 7, and inserting square pins 9 into the first insertion hole 5 and the second insertion hole 6.
[0036] The square pin 9 is used to connect with the first socket 5 and the second socket 6.
[0037] The scheme is further optimized by providing a non-penetrating slot 8 on the horizontal bar 7, and inserting a second square plate 13 into the non-penetrating slot 8.
[0038] The non-penetrating slot 8 is used to insert the second square plate 13.
[0039] Further optimization of the design: the insert assembly includes a right-angle bent circular rod 17, one end of which is provided with a threaded hole 18, and one end of which is threadedly connected to a circular rod 15. One end of the circular rod 15 is provided with a threaded section 16, and the threaded hole 18 is threadedly connected to the threaded section 16.
[0040] The purpose of the threaded connection is to simulate the method of extending steel bars in actual practice. The threaded hole 18 on the right-angle bent circular rod 17 facilitates connection with the threaded section 16 on the circular rod 15.
[0041] In a further optimized design, the first square plate 10 has several circular holes 12 of varying sizes, and a right-angled curved circular rod 17 is inserted into each of the circular holes 12.
[0042] A right-angle bent circular rod 17 is inserted into the circular hole 12 to simulate the steel reinforcement structure at the top of the column.
[0043] The circular holes 12 are of different sizes to facilitate the insertion of right-angle bent circular rods 17 of different diameters, so as to simulate steel bars of different diameters.
[0044] In a further optimized design, the second square plate 13 has several round holes 14 of varying sizes, and a round rod 15 is inserted into each round hole 14.
[0045] The varying sizes of the holes 14 facilitate the insertion of circular rods 15 of different diameters to simulate reinforcing bars of different diameters.
[0046] In a further optimized design, a square hole 11 is provided at the end of the first square plate 10, which is used to fit the longitudinal rod 4.
[0047] The square hole 11 is designed to facilitate fitting onto the outside of the longitudinal rod 4.
[0048] Furthermore, the components and connection methods used in the demonstration model device are simple and can be made of materials such as wood, stainless steel, aluminum alloy, and organic polymer materials, making them widely available and easy to manufacture.
[0049] Further optimization of the design: the bottom end of the base plate 1 is fixed with several casters 2 with self-locking function.
[0050] The omnidirectional wheels 2 with self-locking function make it easy to move the entire device to a suitable position for display.
[0051] Demonstration of model assembly and demonstration of functional examples:
[0052] First, select several longitudinal bars 4, transverse bars 7, first square plates 10, and second square plates 13 of appropriate length according to the dimensions and reinforcement structure of the beams and columns to be demonstrated. Second, based on the horizontal length and width of the column, select insertion holes 3 on the base; the spacing between two adjacent insertion holes 3 indicates the horizontal dimension of the column. Then, insert the four longitudinal bars 4 into the insertion holes 3 of the base and tighten them. Select two first square plates 10 and fit their four square holes 11 onto the four longitudinal bars 4 on the base 1, maintaining a certain vertical distance between the two square plates 10. Next, select four second square plates 13 and fit their upper and lower parts into the non-penetrating slots 8 between the two transverse bars 7, thus forming the beam-column joint frame. Finally, based on the reinforcement structure of the beam-column joint demonstrated, select a sufficient number of circular rods 15 and right-angle bent circular rods 17, and sequentially insert them into the circular holes 12 and 14 of the first square plate 10 and the second square plate 13. If it is necessary to lengthen the reinforcement, the circular rods 15 and right-angle bent circular rods 17 can be extended using threaded connections. This demonstrates a complete longitudinal and transverse reinforcement structure of a beam-column joint.
[0053] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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.
[0054] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A demonstration model simulating a reinforced configuration of a beam-column joint, characterized by: Includes a base plate (1), on which a plurality of insertion holes (3) are provided, and longitudinal rods (4) are inserted into the insertion holes (3). A plurality of first square plates (10) are fitted on the four longitudinal rods (4). A transverse rod (7) is inserted between adjacent longitudinal rods (4). A second square plate (13) is inserted between the transverse rods (7) in the same vertical plane. The first square plate (10) and the second square plate (13) are respectively provided with rod assemblies simulating steel bars. The first square plate (10) and the second square plate (13) are both made of transparent material.
2. The demonstration model of the reinforced configuration of a beam-column joint according to claim 1, characterized in that: The longitudinal rod (4) has several sets of mutually perpendicular first insertion holes (5) and second insertion holes (6), and the transverse rod (7) is inserted into the first insertion hole (5) and the second insertion hole (6).
3. The demonstration model of the reinforced configuration of a beam-column joint according to claim 2, characterized in that: The two ends of the transverse rod (7) are fixed with square pins (9), and the square pins (9) are inserted into the first insertion hole (5) and the second insertion hole (6).
4. The demonstration model of the reinforced construction of a beam-column joint according to claim 1, characterized in that: The transverse bar (7) has a non-penetrating slot (8), and the second square plate (13) is inserted into the non-penetrating slot (8).
5. The demonstration model of the reinforced construction of the beam-column joint according to claim 1, characterized in that: The insertion rod assembly includes a right-angle bent circular rod (17), one end of which is provided with a threaded hole (18), and one end of which is threadedly connected to a circular rod (15). One end of the circular rod (15) is provided with a threaded section (16), and the threaded hole (18) is threadedly connected to the threaded section (16).
6. The demonstration model of the reinforced configuration of a beam-column joint according to claim 5, characterized in that: The first square plate (10) has several circular holes (12) of different sizes, and the right-angle curved circular rod (17) is inserted into the circular holes (12).
7. The demonstration model of the reinforced configuration of a beam-column joint according to claim 5, characterized in that: The second square plate (13) has several round holes (14) of different sizes, and the round rod (15) is inserted into the round hole (14).
8. The demonstration model of the reinforced construction of a beam-column joint according to claim 1, characterized in that: The first square plate (10) has a square hole (11) at its end, which is used to fit the longitudinal rod (4).
9. The demonstration model of the reinforced construction of the beam-column joint according to claim 1, characterized in that: The bottom end of the base plate (1) is fixed with several casters (2) with self-locking function.