Cable-stayed bridge health monitoring reference model capable of being used for damage simulation

Abstract

The utility model relates to the technical field of cable-stayed bridge models, and discloses a cable-stayed bridge health monitoring reference model capable of being used for damage simulation, which comprises a main body structure, and the main body structure comprises a support, a bridge panel and a cable bent tower. The main body structure comprises a plurality of groups of stay cable structures, each stay cable structure comprises a stay cable and a fixing seat, and one ends of the stay cables are fixedly connected to the outer surfaces of the two sides of the cable bent tower respectively. Secondary limiting is carried out when the first supporting plate and the second supporting plate are spliced through a trapezoidal clamping groove and a trapezoidal clamping block, it can be guaranteed that the spliced first supporting plate and the spliced second supporting plate are stable enough, and meanwhile the stability of the spliced bridge panel can be improved through clamping of two sets of limiting plates and limiting grooves; according to the design, the manufacturing cost of the equipment can be effectively reduced, and the use flexibility of the equipment can be remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of cable-stayed bridge model technology, and in particular to a baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation. Background Technology

[0002] A working model is needed in the design process of bridges. Whether it is for planning or analysis, it reflects the building more realistically than drawings. As a three-dimensional bridge model, it has an accurate scale relationship with the actual bridge. Components such as volume combination, directionality, mass, outline shape, and spatial sequence are also reflected in the model.

[0003] Patent application number CN2222987093.5 discloses a physical teaching model for cable-stayed bridge construction technology, including a substructure construction demonstration area and a superstructure construction demonstration area. The substructure construction demonstration area is divided from left to right along the ground observation path into pile foundation construction demonstration units, pier construction demonstration units, pier-cap beam finished product demonstration units, and lower tower-pier cap construction demonstration units. A cap beam construction demonstration unit is located at the top of each pier construction demonstration unit. The superstructure construction demonstration area includes a large box girder erection demonstration unit, an upper tower construction demonstration unit, cable-stayed cable installation demonstration unit, and bridge deck paving construction unit. The bridge deck paving construction unit includes a practical training area for expansion joint binding. While this device can improve students' cognitive abilities, practical skills, and comprehensive abilities, and eliminate safety hazards and management difficulties at construction sites, the teaching model's structure remains relatively complex and lacks safety monitoring capabilities for the cable-stayed bridge model, making it unsuitable for practical teaching and training related to cable-stayed bridge safety monitoring.

[0004] Regarding the aforementioned related technologies, the inventor believes that the following defects exist:

[0005] 1. The bridge model mentioned above requires concrete for casting and splicing during its construction. However, due to the long curing time of concrete, the production cost of the equipment is high. Furthermore, the equipment is a one-piece structure, which makes it large in size and inconvenient to disassemble and assemble, resulting in poor flexibility in the use of the equipment.

[0006] 2. Furthermore, the stay cables of the bridge model are fixedly connected to the bridge deck, making it difficult to simulate situations where the stay cables become loose or break. Utility Model Content

[0007] To address the issues of poor flexibility in equipment use and the difficulty in simulating situations where stay cables become loose or break, this invention provides a baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation.

[0008] This utility model is achieved by the following technical solution: a main structure, which includes supports, bridge decks and cable towers;

[0009] The cable structure has multiple sets, including inclined cables and fixed seats. One end of each set of inclined cables is fixedly connected to the outer surface of both sides of the tower. The upper surface of the support is equipped with load-bearing columns at both ends, and the upper surfaces of the two sets of load-bearing columns are respectively fitted with a first support plate and a second support plate.

[0010] The above technical solution enables the two sets of load-bearing columns and supports to be designed separately, and the first support plate and the second support plate are also designed separately.

[0011] As a further improvement to the above solution, a trapezoidal slot is provided inside one end of the first support plate, and a trapezoidal block is fixedly connected to the outer surface of one end of the second support plate, and the trapezoidal block is engaged inside the trapezoidal slot. Fixing bolts are inserted into the middle positions of the first support plate and the second support plate, and the two sets of fixing bolts are respectively connected to the internal threads on the upper surfaces of the two sets of load-bearing columns.

[0012] The above technical solution improves the stability of the trapezoidal block when it is spliced ​​with the trapezoidal slot by engaging the trapezoidal block with the trapezoidal slot. Furthermore, the first support plate and the second support plate can be fixedly connected to the two sets of load-bearing columns by two sets of fixing bolts.

[0013] As a further improvement to the above solution, the upper surfaces of the first support plate and the second support plate are fixedly connected to limit plates, and the upper surfaces of the first support plate and the second support plate are attached to bridge panels. Limit grooves are opened inside both ends of the lower surface of the bridge panels. The two sets of limit plates are respectively engaged inside the two sets of limit grooves. A cable tower is fixedly connected to the middle position of the upper surface of the bridge panels.

[0014] The above technical solution can minimize the movement of the bridge deck panels on the upper surfaces of the first and second support plates by engaging the two sets of limiting plates and limiting grooves, thereby improving the stability of the bridge deck panels during splicing.

[0015] As a further improvement to the above solution, multiple sets of the fixing seats are respectively fixedly connected to both ends of the upper surface of the bridge deck. One end of the cable is fitted with a fixing ring, and one end of the fixing ring is fixedly connected with a limiting bolt. One end of the limiting bolt is inserted into the interior of the fixing seat, and a limiting nut is threadedly connected to the outer surface of the limiting bolt. The surface of one side of the limiting nut is in contact with the inner surface of the fixing seat.

[0016] The above technical solution allows users to adjust the position of the limiting bolt inside the fixed seat by rotating the limiting nut, thereby adjusting the tension of the cable.

[0017] As a further improvement to the above solution, the diameter of the limiting nut is larger than the width of the fixing seat, and the outer surface of the limiting nut is provided with anti-slip texture.

[0018] The above technical solution allows users to rotate the limit nut with less effort, and the anti-slip texture can minimize the risk of the user's hand slipping when rotating the limit nut.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] This utility model constructs the main structure by splicing the entire structure, ensuring convenience and timeliness during the construction process. It also secures the first and second support plates to the two sets of load-bearing columns using two sets of fixing bolts. Furthermore, trapezoidal slots and blocks provide secondary positioning during the splicing of the first and second support plates, ensuring sufficient stability after assembly. The engagement of the two sets of limiting plates and slots further enhances the stability of the bridge deck after splicing. This design effectively reduces manufacturing costs and significantly improves the flexibility of equipment use.

[0021] Furthermore, this utility model adjusts the position of the limiting bolt inside the fixed seat by rotating the limiting nut, thereby adjusting the tension of the stay cable. This can simulate the situation where the stay cable is loose. Rotating the limiting nut can disengage it from the outer surface of the limiting bolt, and then the limiting bolt can be pulled out of the fixed seat, which can simulate the situation where the stay cable breaks. This design can simulate the situation where the stay cable is loose or broken, thereby increasing the functionality of the equipment during simulation. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is an exploded three-dimensional structural diagram of the main structure of this utility model.

[0024] Figure 3 This is an exploded three-dimensional structural diagram of the main structure of this utility model.

[0025] Figure 4 This is a partial exploded view of the three-dimensional structure of the main body of this utility model.

[0026] Figure 5This is a partial three-dimensional structural diagram of the cable structure of this utility model.

[0027] Figure 6 This is a partial exploded view of the three-dimensional structure of the cable structure of this utility model.

[0028] Explanation of key symbols:

[0029] 1. Main structure; 11. Support; 12. Load-bearing column; 13. First support plate; 14. Second support plate; 15. Trapezoidal slot; 16. Trapezoidal block; 17. Fixing bolt; 18. Limiting plate; 19. Bridge deck; 110. Limiting groove; 111. Tower; 2. Cable structure; 21. Stay cable; 22. Fixing ring; 23. Limiting bolt; 24. Limiting nut; 25. Fixing seat. Detailed Implementation

[0030] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0031] Please combine Figures 1-6 The cable-stayed bridge health monitoring benchmark model that can be used for damage simulation in this embodiment includes: a cable-stayed bridge health monitoring benchmark model that can be used for damage simulation, including: a main structure 1, the main structure 1 including a support 11, a bridge deck 19 and a tower 111;

[0032] The cable structure 2 has multiple sets, including inclined cables 21 and fixed seats 25. One end of each set of inclined cables 21 is fixedly connected to the outer surface of both sides of the tower 111. The upper surface of the support 11 has load-bearing columns 12 inserted into the interior of both ends. The upper surfaces of the two sets of load-bearing columns 12 are respectively engaged with the first support plate 13 and the second support plate 14.

[0033] The above technical solution enables the two sets of load-bearing columns 12 and supports 11 to be designed separately, and the first support plate 13 and the second support plate 14 are also designed separately.

[0034] As a further improvement to the above solution, a trapezoidal slot 15 is provided inside one end of the first support plate 13, and a trapezoidal block 16 is fixedly connected to the outer surface of one end of the second support plate 14, and the trapezoidal block 16 is engaged inside the trapezoidal slot 15. Fixing bolts 17 are inserted into the middle position of the first support plate 13 and the second support plate 14, and the two sets of fixing bolts 17 are respectively connected to the internal threads on the upper surface of the two sets of load-bearing columns 12.

[0035] By using the above technical solution, the stability of the trapezoidal card block 16 when it is engaged with the trapezoidal card slot 15 can be improved. Furthermore, the first support plate 13 and the second support plate 14 can be fixedly connected to the two sets of load-bearing columns 12 by using two sets of fixing bolts 17.

[0036] As a further improvement to the above scheme, the upper surfaces of the first support plate 13 and the second support plate 14 are fixedly connected with limit plates 18, and the upper surfaces of the first support plate 13 and the second support plate 14 are attached to the bridge panel 19. The lower surfaces of the bridge panel 19 are provided with limit grooves 110 at both ends. The two sets of limit plates 18 are respectively engaged in the two sets of limit grooves 110. The middle position of the upper surface of the bridge panel 19 is fixedly connected to the tower 111.

[0037] Through the above technical solution, the engagement between the two sets of limiting plates 18 and the limiting grooves 110 can minimize the movement of the bridge panel 19 on the upper surfaces of the first support plate 13 and the second support plate 14, thereby improving the stability of the bridge panel 19 during splicing.

[0038] As a further improvement to the above scheme, multiple sets of fixing seats 25 are respectively fixedly connected to both ends of the upper surface of the bridge deck 19. One end of the cable 21 is fitted with a fixing ring 22, and one end of the fixing ring 22 is fixedly connected with a limiting bolt 23. One end of the limiting bolt 23 is inserted into the interior of the fixing seat 25, and a limiting nut 24 is threadedly connected to the outer surface of the limiting bolt 23. The surface of one side of the limiting nut 24 is attached to the inner surface of the fixing seat 25.

[0039] The above technical solution allows users to adjust the position of the limiting bolt 23 inside the fixed seat 25 by rotating the limiting nut 24, thereby adjusting the tension of the stay cable 21.

[0040] As a further improvement to the above solution, the diameter of the limiting nut 24 is larger than the width of the fixing seat 25, and anti-slip texture is provided on the outer surface of the limiting nut 24.

[0041] The above technical solution allows users to rotate the limiting nut 24 with less effort, and the anti-slip texture can minimize the risk of the user's hand slipping when rotating the limiting nut 24.

[0042] The implementation principle of a baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation in this application embodiment is as follows:

[0043] Step 1: First, insert the two sets of load-bearing columns 12 into the interior of the two ends of the upper surface of the support 11. Then, snap the first support plate 13 and the second support plate 14 onto the upper surface of the two sets of load-bearing columns 12. Next, snap the trapezoidal snap block 16 into the interior of the trapezoidal snap groove 15. Then, fix the position of the first support plate 13 and the second support plate 14 with two sets of fixing bolts 17. Then, attach the lower surface of the bridge deck 19 to the upper surface of the first support plate 13 and the second support plate 14, and snap the two sets of limiting plates 18 into the interior of the two sets of limiting grooves 110. At this time, the overall assembly of the main structure 1 can be completed.

[0044] Step 2: Next, adjust the tension of the multiple sets of stay cables 21 by rotating the limit nuts 24 according to the usage requirements. At this time, the stay cables 21 can be simulated to loosen. Then, rotate the limit nuts 24 to make them disengage from the outer surface of the limit bolts 23. Then, the limit bolts 23 can be pulled out of the interior of the fixing seat 25. At this time, the stay cables 21 can be simulated to break.

[0045] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A cable-stayed bridge health monitoring benchmark model for damage simulation, characterized in that, include: The main structure includes supports, bridge decks, and cable towers; The cable structure has multiple sets, and includes inclined cables and fixed seats. One end of each set of inclined cables is fixedly connected to the outer surface of both sides of the tower.

2. The baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation as described in claim 1, characterized in that: The upper surface of the support is equipped with load-bearing columns at both ends, and the upper surfaces of the two sets of load-bearing columns are respectively fitted with a first support plate and a second support plate.

3. The baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation as described in claim 2, characterized in that: The first support plate has a trapezoidal slot inside one end, and a trapezoidal block is fixedly connected to the outer surface of one end of the second support plate, and the trapezoidal block is engaged inside the trapezoidal slot. Fixing bolts are inserted into the middle position of the first support plate and the second support plate, and the two sets of fixing bolts are respectively connected to the internal threads on the upper surface of the two sets of load-bearing columns.

4. The cable-stayed bridge health monitoring benchmark model for damage simulation of claim 3, wherein: Limiting plates are fixedly connected to the upper surfaces of the first support plate and the second support plate, and bridge panels are attached to the upper surfaces of the first support plate and the second support plate. Limiting grooves are opened inside both ends of the lower surface of the bridge panel. The two sets of limiting plates are respectively engaged inside the two sets of limiting grooves. A cable tower is fixedly connected to the middle position of the upper surface of the bridge panel.

5. The baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation as described in claim 1, characterized in that: Multiple sets of the fixing seats are respectively fixedly connected to both ends of the upper surface of the bridge deck. One end of the cable is fitted with a fixing ring, and one end of the fixing ring is fixedly connected with a limit bolt.

6. The cable-stayed bridge health monitoring benchmark model for damage simulation of claim 5, wherein: One end of the limiting bolt is inserted into the interior of the fixing seat, and a limiting nut is threadedly connected to the outer surface of the limiting bolt, and one side of the limiting nut is in contact with the inner surface of the fixing seat.

7. The baseline model for health monitoring of cable-stayed bridges that can be used for damage simulation as described in claim 6, characterized in that: The diameter of the limiting nut is larger than the width of the fixing base, and the outer surface of the limiting nut is provided with anti-slip texture.

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