CN-224232277-U - Main beam transverse ruler and cable-stayed bridge simulation demonstration model with same

CN224232277UCN 224232277 UCN224232277 UCN 224232277UCN-224232277-U

Abstract

The utility model provides a girder transverse ruler and a cable-stayed bridge simulation demonstration model with the same, wherein the girder transverse ruler comprises a transverse ruler main body and a cuboid structure is defined; the upper surface and the lower surface of the transverse ruler main body are respectively provided with a first chute and a second chute along the longitudinal direction of the transverse ruler main body, a first hook is slidably arranged in the first chute, a second hook is slidably arranged in the second chute, and scale marks and/or scale values are arranged on the side surface of the transverse ruler main body. The cable-stayed bridge simulation demonstration model comprises a base, a main beam transverse ruler, an inclined stay rope, a driving motor and a force sensor, wherein the cable-stayed rope winds or releases around a driving pulley when the driving pulley rotates, so that the main beam transverse ruler is driven to swing, and the change of the tension is measured and represented. Therefore, the tension state change of the cable-stayed rope under the influence of the dead weight of the transverse ruler in the swinging process is dynamically simulated. The movable weight is arranged below the main beam transverse ruler and used as a load, and dynamic changes of the pulling force of the oblique pull rope under the conditions of self weight and load of the transverse ruler are dynamically demonstrated.

Inventors

ZHANG LEI
ZHANG SHUYUAN
LI TIWEI
LU YIGANG

Assignees

南京大德科教设备有限公司

Dates

Publication Date: 20260512
Application Date: 20241213

Claims (15)

1. The utility model provides a girder crossruler of cable-stay bridge dynamic simulation model which characterized in that includes: A transverse ruler main body defining a cuboid structure; A first sliding groove which is arranged on the upper surface of the transverse ruler main body and along the longitudinal direction of the transverse ruler main body, wherein at least one first hook is slidably arranged in the first sliding groove; A second sliding groove arranged on the opposite lower surface of the main body along the longitudinal direction of the main body, at least one second hook being arranged in the second sliding groove in a sliding way, and Graduation lines and/or graduation values are arranged on at least one side face of the transverse ruler main body.
2. The girder transverse ruler of the dynamic simulation model of the cable-stayed bridge according to claim 1, wherein the relative positions of the first chute and the second chute are symmetrically designed.
3. The girder transverse ruler of a dynamic simulation model of a cable-stayed bridge according to claim 1, wherein the first sliding groove and the second sliding groove have the same size.
4. A girder crossruler of a dynamic simulation model of a cable-stayed bridge according to any of claims 1-3, wherein at least one side of the crossruler body is provided with a level bubble.
5. The simulation demonstration model of the cable-stayed bridge is characterized by comprising the main beam transverse ruler as claimed in any one of the preceding claims 1-4, a base, an oblique stay rope, a driving motor and a force sensor; the upper surface of the base is fixedly provided with an upward extending upright rod; A rotatable mounting relation is formed between one end of the main beam transverse ruler and the upright rod, a first hook is arranged on the main beam transverse ruler, and the first hook is connected with the tail end of the inclined pull rope and can be pulled by the inclined pull rope, so that the main body Liang Hengche can do deflection movement around the mounting position in space; The pulley block comprises a first pulley arranged in the top direction of the vertical rod and a second pulley arranged in the bottom direction of the vertical rod; The output shaft of the driving motor is connected with a driving pulley, and the driving motor rotates to drive the driving pulley to synchronously rotate; The oblique pull rope extends from the first hook to sequentially bypass the first pulley and the second pulley, further extends to the driving pulley and can be wound or released around the driving pulley when the driving pulley rotates clockwise or anticlockwise; The second pulley is also connected with a force sensor, and the force sensor is used for detecting the force born by the second pulley in real time to represent the tension of the inclined pull rope so as to dynamically simulate the tension state change of the inclined pull rope influenced by the dead weight of the girder transverse ruler; And a load weight is arranged on the at least one second hook.
6. The cable-stayed bridge simulation demonstration model of claim 5, wherein the inclined stay rope is positioned in the same plane from the fixed connection point of the first hook, the position of bypassing the first pulley and the position of bypassing the second pulley.
7. The cable-stayed bridge simulation demonstration model of claim 5, wherein the driving motor is installed on the vertical rod through a motor installation frame and is positioned below the installation position of the transverse ruler; The second pulley is positioned at the same side as the driving motor and at the lower position of the transverse ruler relative to the mounting position of the transverse ruler, and the first pulley is positioned at the upper position of the transverse ruler.
8. The cable-stayed bridge simulation demonstration model of claim 5, wherein the girder transverse ruler is provided with a level bubble.
9. The cable-stayed bridge simulation demonstration model of claim 5, wherein the girder transverse ruler is installed on the upright rod through a perforated fixed block; The perforated fixed block is sleeved on the vertical rod, and the first knob penetrates through the transverse ruler of the main beam and the side wall of the perforated fixed block, so that the perforated fixed block is screwed into the vertical rod and is abutted against the vertical rod to be screwed, and the perforated fixed block is fixed in position on the vertical rod.
10. The cable-stayed bridge simulation demonstration model of claim 9, wherein the head of the first knob is provided with threads to be screwed in cooperation with threaded holes on the side wall of the perforated fixed block; The waist of the first knob is a smooth surface so that the main body Liang Hengche can freely rotate around it.
11. The cable-stayed bridge simulation demonstration model of claim 5, wherein the tension data detected by the force sensor can be output in a wired or wireless transmission mode.
12. The simulation demonstration model of a cable-stayed bridge according to any one of claims 5 to 11, wherein when the driving pulley rotates to wind the oblique stay rope, the cable-stayed rope is pulled to wind around the first pulley and the second pulley in turn and wound on the driving pulley, and the girder transverse ruler is pulled to swing in the lifting direction.
13. The simulation demonstration model of a cable-stayed bridge according to any one of claims 5 to 11, wherein when the driving pulley rotates to release the cable-stayed rope, the cable-stayed rope wound on the driving pulley sequentially bypasses the second pulley and the first pulley to be released towards the direction of the first hook on the girder crossruler, thereby driving the girder crossruler to swing in the descending direction.
14. The cable-stayed bridge simulation demonstration model according to any one of claims 5-11, further comprising a control system connected to the driving motor for controlling the operation of the driving motor.
15. A cable-stayed bridge simulation demonstration model according to any one of claims 5-11, further provided with a display device in data communication with the force sensor for displaying the measured force data and/or the force variation.

Description

Main beam transverse ruler and cable-stayed bridge simulation demonstration model with same Technical Field The utility model relates to the technical field of teaching simulation instruments and equipment, in particular to a main beam transverse ruler and a cable-stayed bridge simulation demonstration model with the main beam transverse ruler. Background The cable-stayed bridge is a typical bridge structure, mainly comprising a girder, a bridge tower and stay cables, wherein the girder is directly pulled on the bridge tower by the stay cables to construct a bridge. The main girder is a main structural part for bearing the load of vehicles and the like, and has various forms, such as a steel box girder, a concrete box girder and the like. The bridge tower is an important supporting structure of the cable-stayed bridge, is generally towered at two ends or in the middle of the bridge, and is made of reinforced concrete or steel materials. The stay cables are key components for connecting the bridge tower and the main beams, are in various radial or harp-shaped arrangement forms and the like, and transmit the load of the main beams to the bridge tower. At present, in the teaching scientific research and science popularization demonstration activities aiming at the cable-stayed bridge design and construction, a structural model with reduced equal proportion is used, the cable-stayed bridge is manufactured by materials such as wood, plastics and metal, for example, the outer shells of a girder and a bridge tower are manufactured by plastics, the structural strength of the cable-stayed bridge is enhanced by a metal framework, a high-strength steel wire or nylon rope is used for the cable-stayed bridge according to a certain proportion, the cable-stayed bridge is precisely measured and reduced, and then the corresponding materials are used for fine processing and fixed assembly to form the structural model, so that the real structural mode and form of the cable-stayed bridge, including the whole appearance, the structural detail and the connection relation among all parts of the cable-stayed bridge, are more vividly and intuitively displayed, the space form and the structure of the cable-stayed bridge can be better known, but the bonded and fixed structure can not be dynamically simulated and demonstrated, for example, the change conditions such as the girder, the dynamic load and the like can not be dynamically demonstrated, and the principle and the mechanical property of the cable-stayed bridge are still limited to a certain extent. Disclosure of utility model In view of the defects and shortcomings of the prior art, the utility model aims to provide a girder transverse ruler of a dynamic simulation model of a cable-stayed bridge, which comprises: A transverse ruler main body defining a cuboid structure; A first sliding groove which is arranged on the upper surface of the transverse ruler main body and along the longitudinal direction of the transverse ruler main body, wherein at least one first hook is slidably arranged in the first sliding groove; A second sliding groove arranged on the opposite lower surface of the main body along the longitudinal direction of the main body, at least one second hook being arranged in the second sliding groove in a sliding way, and Graduation lines and/or graduation values are arranged on at least one side face of the transverse ruler main body. As an alternative embodiment, the relative positions of the first chute and the second chute are symmetrically designed. As an alternative embodiment, the first chute and the second chute are the same size. An alternative embodiment is characterized in that at least one side of the transverse ruler body is provided with a vial. According to a second aspect of the invention, a simulation demonstration model of a cable-stayed bridge is also provided, which comprises the main beam transverse ruler, a base, an oblique stay rope, a driving motor and a force sensor; the upper surface of the base is fixedly provided with an upward extending upright rod; A rotatable mounting relation is formed between one end of the main beam transverse ruler and the upright rod, a first hook is arranged on the main beam transverse ruler, and the first hook is connected with the tail end of the inclined pull rope and can be pulled by the inclined pull rope, so that the main body Liang Hengche can do deflection movement around the mounting position in space; The pulley block comprises a first pulley arranged in the top direction of the vertical rod and a second pulley arranged in the bottom direction of the vertical rod; The output shaft of the driving motor is connected with a driving pulley, and the driving motor rotates to drive the driving pulley to synchronously rotate; The oblique pull rope extends from the first hook to sequentially bypass the first pulley and the second pulley, further extends to the driving pulley and can be wound or released around t