Dynamic and static experimental model for cable-stayed bridge

Abstract

The utility model provides a cable-stayed bridge dynamic and static experimental model, and particularly relates to the technical field of road bridge design, which comprises a concave base, two bridge towers are arranged on the base, each bridge tower consists of two cross beams and two upright posts, a bridge floor is arranged between the two upright posts, and the cross beams are arranged on the base. The bottoms of the bridge floors are connected with the top end of the base and the top end of the lower cross beam through supporting assemblies, a plurality of inhaul cable assemblies which are connected with the bridge floors and used for pulling the bridge floors are arranged on the two sides of the stand columns, the two bridge floors are arranged, an expansion joint is reserved between the two bridge floors, approach bridges are arranged on the two sides of the base, and an experiment trolley is placed on one approach bridge. The model is composed of a base, a bridge tower, a bridge floor, an inhaul cable assembly and an approach bridge, a solid bridge style can be restored in a high mode, and data types measured through the model are comprehensive; the approach bridge can be used for placing the experiment trolley before the experiment, so that the load can be prevented from being applied to the to-be-monitored part of the bridge model before the experiment is started.

Description

Technical Field

[0001] The utility model relates to the technical field of road bridge design, in particular to a dynamic and static experimental model of a cable-stayed bridge. Background Art

[0002] At present, in order to test the flexural deformation of the bridge model under different static loads and moving vehicle loads of different speeds and masses, it is necessary to design a bridge model static and dynamic load test device, which mainly includes three parts: bridge model, loading system, and measurement system;

[0003] When engineers build roads and bridges, they usually first display the main structural plane of the bridge on the drawing, then use proportional parts to assemble and assemble a bridge model, and then conduct dynamic and static load simulation experiments on the bridge model;

[0004] The existing patent CN218725378U discloses a loading device for studying the performance of a bridge model. In this patent, loading is mainly performed through a guide rail and a trolley that cooperates with the guide rail. The main purpose is to use a loading track and an acceleration device on the loading trolley, so that the accuracy of the test data is improved and the speed can be controlled; two linear guide rails are used to ensure that the trolley will not derail during driving and to ensure that the wheelbarrow maintains balance. However, the trolley in this patent can only move on a preset guide rail. To a certain extent, when performing a load test, the data coverage is less, and it is impossible to perform a load test on a model without a guide rail.

[0005] For example, a combined model of road and bridge design is disclosed in the patent with patent publication number CN219759047U. The model in the patent has a poor degree of restoration of the actual bridge. At the same time, the combined model of road and bridge design disclosed in the patent cannot be subjected to load testing and can only be used as a display model.

[0006] Therefore, it is necessary to design a dynamic and static experimental model of a cable-stayed bridge that has a high degree of restoration of the actual bridge and simulates the actual vehicle moving load test. Utility Model Content

[0007] In order to solve the above problems, the utility model proposes a dynamic and static experimental model of a cable-stayed bridge to more accurately solve the above problems.

[0008] The utility model is realized by the following technical solutions:

[0009] The utility model proposes a dynamic and static experimental model of a cable-stayed bridge, comprising a concave base, wherein two bridge towers are arranged on the base, and the bridge towers are composed of two cross beams and two columns, the top of the lower cross beam is in the same straight line with the top of the base, a bridge deck is arranged between the two columns, the bottom of the bridge deck is connected with the top of the base and the top of the lower cross beam through a supporting assembly, a plurality of cable assemblies connected with the bridge deck and used for pulling the bridge deck are arranged on both sides of the column, the cable assemblies are arranged in an inclined manner, and a plurality of the cable assemblies are spread outwardly in an equidistant arrangement manner from the bottom of the column to the top of the column, two bridge decks are arranged, the bottom of the bridge deck adopts a setting manner of low in the middle and high on both sides, an expansion joint is reserved between the two bridge decks, approach bridges are arranged on both sides of the base, and an experimental trolley is placed on one of the approach bridges.

[0010] The utility model further provides that the support assembly includes four hinge supports of the same height and width, the four hinge supports include a fixed hinge support, left and right one-way hinge supports, front and rear one-way hinge supports and a two-way hinge support, and the four hinge supports are grouped in pairs and are respectively arranged at the top of the base and the top of the beam below.

[0011] Furthermore, in the utility model, the fixed hinge support includes a first seat body, and the first seat body is connected to a first support body via a first pin shaft.

[0012] Furthermore, the utility model comprises a second seat body, to which a second support body is connected via a second pin shaft, a first transverse adjustment groove in the shape of a trapezoid is provided in the transverse direction through the middle of the top end of the second support body, and a first adjustment block is fitted in the first transverse adjustment groove.

[0013] Furthermore, the utility model comprises a third seat body, to which a third support body is connected via a third pin shaft, a first longitudinal adjustment groove in the shape of a trapezoid is provided in the longitudinal direction through the middle of the top end of the third support body, and a second adjustment block is fitted in the first longitudinal adjustment groove.

[0014] The utility model further comprises a fourth seat body, a fourth support body is connected to the fourth seat body via a fourth pin shaft, a second transverse adjustment groove is provided in the transverse direction through the middle of the top end of the fourth support body, a third adjustment block is fitted in the second transverse adjustment groove, a second longitudinal adjustment groove is provided in the longitudinal direction through the middle of the top end of the third adjustment block, and a fourth adjustment block is fitted in the second longitudinal adjustment groove.

[0015] The utility model further provides that the cable assembly includes a first hanging end connected to the column, and a second hanging end connected to the top of the bridge deck, and the first hanging end and the second hanging end are connected by a diagonal cable.

[0016] The utility model further comprises a steel wire rope and steel wire rope fasteners arranged at both ends of the steel wire rope and connected to the first suspension end and the second suspension end respectively.

[0017] The utility model further provides that the approach bridge includes a connecting plate connected to one side of the base, the two sides of the connecting plate are connected with placement ends, the placement ends are connected with a placement plate, the bottom of the placement plate and the side away from the placement end are provided with two symmetrically arranged inclined support rods, the other end of the inclined support rod is connected to one side of the base and is located below the connecting plate.

[0018] Furthermore, in the utility model, the base is assembled from standard aluminum profiles.

[0019] Beneficial effects of the utility model:

[0020] The model consists of a base, bridge towers, bridge deck, cable assembly and approach bridge, which can restore the physical bridge style to a high degree and make the data types measured by the model more comprehensive; the setting of the approach bridge can be used to place the experimental vehicle before the experiment, which can avoid applying load to the monitored part of the bridge model before the experiment starts; the design of the approach bridge solves the problem of misloading that may be caused in the experimental preparation stage, ensures the preparation work before the experiment starts, and avoids applying unexpected loads to the bridge model;

[0021] The design of the two bridge decks not only enables the staff to obtain more experimental data through the model, but also can more comprehensively reflect the mechanical response of the bridge deck when the load is applied; at the same time, the bridge deck design provides a wider range of experimental data collection points, which can more accurately reflect the mechanical response of the bridge during the loading process, thereby improving the restoration and accuracy of the experimental results;

[0022] The bridge deck is designed with expansion joints. By setting expansion joints, the bridge deck can expand and contract freely when affected by temperature changes without causing transitional stress or deformation due to temperature changes. Temperature changes will cause the bridge deck to expand and contract. If there are no expansion joints, the bridge deck may crack or deform due to internal forces, affecting the accuracy of the experiment. By setting expansion joints, the internal forces caused by temperature changes can be reduced, avoiding experimental errors caused by temperature.

[0023] The bottom of the bridge deck is low in the middle and high on both sides, and the low part and the high part are transitioned by an inclined surface. The advantage of this design is that the thinner setting in the middle can make the bridge deck itself deform more obviously when a load is applied, thereby avoiding the phenomenon that the data is difficult to monitor due to the unclear change. The thicker setting on both sides can increase the strength of both sides of the bridge deck, and is mainly used to open a plurality of second mounting holes connected to the second suspension end, and to ensure the stability of the cable assembly when pulling the bridge deck. Preferably, the second suspension end and the second mounting hole are connected by a threaded connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 It is a schematic diagram of the cross-sectional structure of the support assembly position in the utility model;

[0026] Figure 3 It is a schematic diagram of the fixed hinge support structure in the utility model;

[0027] Figure 4 It is a schematic diagram of the left and right one-way hinge support structure in the utility model;

[0028] Figure 5 It is a schematic diagram of the front and rear one-way hinge support structure in the utility model;

[0029] Figure 6 It is a schematic diagram of the bidirectional hinge support structure in the utility model;

[0030] Figure 7 It is a schematic diagram of the bridge tower pulling the bridge deck in the utility model;

[0031] Figure 8 It is a schematic diagram of the structure of the pulling component in the utility model;

[0032] Fig. 9 It is a schematic diagram of the approach bridge structure in the utility model;

[0033] Fig.10 It is a schematic diagram of the cross-sectional structure of the positions of the first fixing hole and the second fixing hole in the utility model;

[0034] Fig.11 This is a schematic diagram of the bottom structure of the bridge deck in the utility model when viewed from above;

[0035] Fig.12 It is a schematic diagram of the position design structure of the fixed hinge support, the left and right one-way hinge supports, the front and rear one-way hinge supports and the two-way hinge support in the utility model;

[0036] Fig.13It is a schematic diagram of the front structure of the base in the utility model.

[0037] In the figure, 1, base; 2, bridge tower; 21, crossbeam; 22, column; 221, first mounting hole; 3, bridge deck; 31, expansion joint; 32, second mounting hole; 4, support assembly; 41, fixed hinge support; 411, first seat body; 412, first pin shaft; 413, first support body; 42, left and right one-way hinge support; 421, second seat body; 422, second pin shaft; 423, second support body; 424, first transverse adjustment slot; 425, first adjustment block; 43, front and rear one-way hinge support; 431, third seat body; 432, third pin shaft; 433, The third support body; 434, the first longitudinal adjustment slot; 435, the second adjustment block; 44, the bidirectional hinge support; 441, the fourth seat body; 442, the fourth pin shaft; 443, the fourth support body; 444, the second transverse adjustment slot; 445, the third adjustment block; 446, the second longitudinal adjustment slot; 447, the fourth adjustment block; 5, the cable assembly; 51, the first hanging end; 52, the second hanging end; 53, the inclined cable; 531, the wire rope; 532, the wire rope fastener; 6, the approach bridge; 61, the connecting plate; 62, the placement end; 63, the placement plate; 64, the inclination support rod. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the following will be combined with the technical solution in the embodiments of the utility model for a clear and complete description. Obviously, the described embodiments are partial embodiments of the utility model, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] Example

[0040] refer to Figure 1-13, a dynamic and static experimental model of a cable-stayed bridge, comprising a concave base 1, on which two bridge towers 2 are arranged, and the bridge tower 2 is composed of two cross beams 21 and two columns 22, the top of the lower cross beam 21 is in the same straight line with the top of the base 1, and a bridge deck 3 is arranged between the two columns 22, and the bottom of the bridge deck 3 is connected to the top of the base 1 and the top of the lower cross beam 21 through a support assembly 4, and both sides of the columns 22 are provided with a plurality of cable assemblies 5 connected to the bridge deck 3 and used to pull the bridge deck 3, the cable assemblies 5 are arranged in an inclined manner, and a plurality of the cable assemblies 5 are spread outwardly from the bottom of the column 22 to the top of the column 22 in an equidistant arrangement, and two bridge decks 3 are arranged, and an expansion joint 31 is left between the two bridge decks 3, and approach bridges 6 are arranged on both sides of the base 1, and an experimental trolley (not shown in the figure) is placed on one of the approach bridges 6;

[0041] The model consists of a base 1, a bridge tower 2, a bridge deck 3, a cable assembly 5 and an approach bridge 6, which can restore the physical bridge style to a high degree and make the data types measured by the model more comprehensive; the setting of the approach bridge 6 can be used to place the experimental vehicle before the experiment, which can avoid applying load to the monitored part of the bridge model before the experiment starts; the design of the approach bridge 6 solves the problem of misloading that may be caused in the experimental preparation stage, ensures the preparation work before the experiment starts, and avoids applying unexpected loads to the bridge model;

[0042] The design of the two bridge decks 3 not only enables the staff to obtain more experimental data through the model, but also can more comprehensively reflect the mechanical response of the bridge deck 3 when the load is applied; at the same time, the design of the bridge deck 3 provides a wider range of experimental data collection points, which can more accurately reflect the mechanical response of the bridge during the loading process, thereby improving the restoration and accuracy of the experimental results;

[0043] The bridge deck 3 is designed with expansion joints 31; by setting the expansion joints 31, the bridge deck 3 can freely expand and contract when affected by temperature changes, without causing transition stress or deformation due to temperature changes; temperature changes will cause thermal expansion and contraction of the bridge deck 3, if there is no expansion joint 31, the bridge deck 3 may crack or deform due to internal forces, affecting the accuracy of the experiment; by setting the expansion joints 31, the internal forces caused by temperature changes can be reduced, avoiding experimental errors caused by temperature;

[0044] In this embodiment, reference Fig.11The bottom of the bridge deck 3 is set in a manner that the middle part is low and the two sides are high, and the low part and the high part are transitioned by an inclined surface. The advantage of adopting this design is that the middle part adopts a thinner setting, which can make the deformation of the bridge deck 3 more obvious when a load is applied, thereby avoiding the phenomenon that the data is difficult to monitor due to the unclear change; and the two sides of the bridge deck 3 adopt a thicker setting, which can increase the strength of both sides of the bridge deck 3, and is mainly used to open a plurality of second mounting holes 32 connected to the second suspension end 52, and ensure the stability of the cable assembly 5 when pulling the bridge deck 3, wherein, preferably, a threaded fixing method is adopted between the second suspension end 52 and the second mounting hole 32; in addition, first mounting holes 221 matching the first suspension end 51 are opened on both sides of the column 22;

[0045] Preferably, the first hanging end 51 and the first mounting hole 221 are fixed by threads.

[0046] Optional References Figure 2-Figure 6 The support assembly 4 includes four hinge supports of the same height and width, and the four hinge supports include a fixed hinge support 41, a left and right one-way hinge support 42, a front and rear one-way hinge support 43 and a two-way hinge support, and the four hinge supports are grouped in pairs and are respectively arranged at the top of the base 1 and the top of the beam 21 below;

[0047] The fixed hinge support 41 includes a first seat body 411, and a first support body 413 is connected to the first seat body 411 via a first pin shaft 412;

[0048] The left and right one-way hinge support 42 includes a second seat body 421, and a second support body 423 is connected to the second seat body 421 through a second pin shaft 422. A first transverse adjustment groove 424 in a trapezoidal shape is provided in the middle of the top end of the second support body 423, and a first adjustment block 425 is matched in the first transverse adjustment groove 424.

[0049] The front and rear one-way hinge support 43 includes a third seat body 431, and a third support body 433 is connected to the third seat body 431 through a third pin shaft 432. A first longitudinal adjustment groove 434 in a trapezoidal shape is provided in the middle of the top end of the third support body 433 in the longitudinal direction, and a second adjustment block 435 is matched in the first longitudinal adjustment groove 434;

[0050] The bidirectional hinge support 44 includes a fourth seat body 441, and a fourth support body 443 is connected to the fourth seat body 441 through a fourth pin shaft 442. A second transverse adjustment groove 444 is provided in the middle of the top end of the fourth support body 443, and a third adjustment block 445 is matched in the second transverse adjustment groove 444. A second longitudinal adjustment groove 446 is provided in the middle of the top end of the third adjustment block 445, and a fourth adjustment block 447 is matched in the second longitudinal adjustment groove 446.

[0051] The arrangement of the four hinge supports can be used to support the bridge deck 3 and transfer the load on the bridge deck 3 to the base 1; and the arrangement of the front and rear one-way hinge supports 43, the left and right one-way hinge supports 42 and the two-way hinge supports can allow the deformation of the bridge deck 3. For details, refer to Fig.12 , the figure discloses a design method of four hinge supports, such as Fig.12 As shown, when the bridge deck 3 is deformed to the left and right, due to the existence of the fixed hinge support 41 on the left and the front and rear one-way hinge support 43, the bridge deck 3 cannot be deformed to the left, while the existence of the left and right one-way hinge support 42 and the two-way hinge support 44 on the right can provide a basis for the deformation of the bridge deck 3 to the right, and, when the bridge deck 3 is deformed to the right, it will synchronously drive the first adjustment block 425 and the fourth adjustment block 447 to slide to the right along the first transverse adjustment groove 424 and the second transverse adjustment groove 444 respectively, and complete the extension deformation of the bridge deck 3; anyway, when the bridge deck 3 is deformed, the first adjustment block 425 and the fourth adjustment block 447 will synchronously slide to the left along the first transverse adjustment groove 424 and the second transverse adjustment groove 444 respectively, and complete the contraction deformation of the bridge deck 3, wherein, because the third adjustment block 445 and the fourth adjustment block 447 are longitudinally slidably connected, when the third adjustment block 445 slides transversely, it will synchronously drive the fourth adjustment block 447 to move in the same direction;

[0052] When the bridge deck 3 is deformed forward and backward, due to the existence of the fixed hinge support 41 and the left and right one-way hinge support 42 at the bottom, the bridge deck 3 cannot spread backward, while the existence of the front and rear one-way hinge support 43 and the two-way hinge support at the top can provide a basis for the forward deformation of the bridge deck 3, and, when the bridge deck 3 is deformed forward, it will synchronously drive the second adjustment block 435 and the third adjustment block 445 to slide forward along the first longitudinal adjustment groove 434 and the second longitudinal adjustment groove 446 respectively, and complete the extension deformation of the bridge deck 3; anyway, when the bridge deck 3 is deformed backward, the second adjustment block 435 and the third adjustment block 445 will slide backward along the first longitudinal adjustment groove 434 and the second longitudinal adjustment groove 446 respectively, and complete the contraction deformation of the bridge deck 3, wherein, since the fourth adjustment block 447 is connected to the third adjustment block 445 in a transverse sliding connection, when the third adjustment block 445 slides longitudinally, it will synchronously drive the fourth adjustment block 447 to move in the same direction;

[0053] Optionally, the four hinge supports can be designed as rotatable sliding supports; the design advantage of using rotatable sliding supports is that when the staff applies a load to the bridge deck 3, the bridge deck 3 will be deformed. The setting of the sliding supports can avoid the hinge supports from having additional restraining forces other than supporting functions, and avoid the uncertain load influence brought by other restraining bodies on the experiment, thereby improving the accuracy of the experiment;

[0054] It should be noted that the deformation of the bridge deck 3 is premised on applying load to the bridge deck 3 itself, and the purpose of setting the four hinge supports is to constrain the deformation of the bridge deck 3, and the purpose of setting the other three hinge supports is that even if the bridge deck 3 is deformed, the bridge deck 3 can be supported and the generation of additional restraining force can be avoided. Of course, the above situation is mainly aimed at the situation that occurs during the experiment of the bridge deck 3; when the bridge deck 3 is not in use, during the placement of the bridge deck 3, deformation may also occur due to the change of temperature difference. In this case, the hinge supports can also play a role in supporting the bridge deck 3.

[0055] Preferably, reference Figure 1 , Figure 7 and Figure 8 The cable assembly 5 includes a first hanging end 51 connected to the column 22, and a second hanging end 52 connected to the top of the bridge deck 3, and the first hanging end 51 and the second hanging end 52 are connected by an inclined cable 53; the inclined cable 53 includes a steel wire rope 531 and steel wire rope fasteners 532 arranged at both ends of the steel wire rope 531 and respectively connected to the first hanging end 51 and the second hanging end 52; the setting of the inclined cable 53 can connect the column 22 with the bridge deck 3, and the column 22 will give the bridge deck 3 a pulling force through the inclined cable 53, so as to ensure that the bridge deck 3 will not move significantly after being loaded, and at the same time, it can also improve the load-bearing capacity of the bridge deck 3 itself, so as to ensure the stability of the bridge deck 3 during the test;

[0056] Among them, the steel wire rope 531 and the steel wire rope fastener 532 are both universal parts, which can reduce the production cost of the model.

[0057] Preferably, reference Figure 1 and Fig. 9The approach bridge 6 includes a connecting plate 61 connected to one side of the base 1, and placement ends 62 are connected to both sides of the connecting plate 61, and a placement plate 63 is connected to the placement end 62. Two symmetrically arranged slope support rods 64 are arranged at the bottom of the placement plate 63 and on the side away from the placement end 62. The other end of the slope support rod 64 is connected to one side of the base 1 and is located below the connecting plate 61; the placement end 62 and the slope support rod 64 are arranged to support the placement plate 63, and the placement plate 63 can be used to place the experimental trolley, and the placement end 62 and the slope support rod 64 cooperate to achieve circumferential fixation of the bottom of the placement plate 63, thereby ensuring the stability of the experimental trolley when it is placed.

[0058] Preferably, reference Fig.13 The base 1 is assembled from standard aluminum profiles; the advantage of using standard aluminum profiles to assemble the base 1 is that standard aluminum profiles have standardized sizes and structures, and can be easily processed and assembled, so bases 1 of different shapes and sizes can be assembled according to specific scene requirements. For bases 1 of different shapes and sizes, it is only necessary to cut out aluminum profiles of different lengths to achieve assembly. Since aluminum profiles and their connectors have mature standard specifications, no additional processing is required, and the production and assembly efficiency is high.

[0059] Of course, the present utility model may have many other implementations. Based on the present implementation, other implementations obtained by ordinary technicians in this field without any creative work are all within the scope of protection of the present utility model.

Claims

1. A dynamic and static experimental model of a cable-stayed bridge, characterized in that: The invention comprises a concave base, on which two bridge towers are arranged, and the bridge towers are composed of two cross beams and two columns, the top of the lower cross beam is in the same straight line with the top of the base, a bridge deck is arranged between the two columns, and the bottom of the bridge deck is connected to the top of the base and the top of the lower cross beam through a supporting assembly, and a plurality of cable assemblies connected to the bridge deck and used for pulling the bridge deck are arranged on both sides of the column, and the cable assemblies are arranged in an inclined manner, and a plurality of the cable assemblies are spread outward in an equidistant arrangement from the bottom of the column to the top of the column, and two bridge decks are arranged, and the bottom of the bridge deck is low in the middle and high on both sides, and an expansion joint is left between the two bridge decks, and approach bridges are arranged on both sides of the base, and an experimental trolley is placed on one of the approach bridges.

2. A cable-stayed bridge dynamic and static experimental model according to claim 1, characterized in that: The support assembly includes four hinge supports of the same height and width, and the four hinge supports include a fixed hinge support, a left and right one-way hinge support, a front and rear one-way hinge support and a two-way hinge support. The four hinge supports are grouped in pairs and are respectively arranged at the top of the base and the top of the beam below.

3. The dynamic and static experimental model of a cable-stayed bridge according to claim 2 is characterized in that: The fixed hinge support includes a first seat body, and the first seat body is connected to a first support body via a first pin shaft.

4. The dynamic and static experimental model of a cable-stayed bridge according to claim 2, characterized in that: The left and right one-way hinge supports include a second seat body, which is connected to a second support body via a second pin shaft, and a first transverse adjustment groove in a trapezoidal shape is provided in the middle of the top end of the second support body, and a first adjustment block is fitted in the first transverse adjustment groove.

5. The dynamic and static experimental model of a cable-stayed bridge according to claim 2, characterized in that: The front and rear one-way hinge support includes a third seat body, and the third seat body is connected to a third support body through a third pin shaft. A first longitudinal adjustment groove in a trapezoidal shape is provided in the longitudinal direction through the middle of the top end of the third support body, and a second adjustment block is matched in the first longitudinal adjustment groove.

6. The dynamic and static test model of a cable-stayed bridge according to claim 2, characterized in that: The bidirectional hinge support includes a fourth seat body, and a fourth support body is connected to the fourth seat body through a fourth pin shaft. A second transverse adjustment groove is arranged horizontally through the middle of the top end of the fourth support body, and a third adjustment block is fitted in the second transverse adjustment groove. A second longitudinal adjustment groove is arranged vertically through the middle of the top end of the third adjustment block, and a fourth adjustment block is fitted in the second longitudinal adjustment groove.

7. The dynamic and static test model of a cable-stayed bridge according to claim 1, characterized in that: The cable assembly includes a first hanging end connected to the column and a second hanging end connected to the top of the bridge deck, and the first hanging end and the second hanging end are connected by an inclined cable.

8. The dynamic and static test model of a cable-stayed bridge according to claim 7, characterized in that: The stay cable comprises a steel wire rope and steel wire rope fasteners which are arranged at both ends of the steel wire rope and are respectively connected to the first hanging end and the second hanging end.

9. The cable-stayed bridge dynamic and static test model according to claim 1, characterized in that: The approach bridge includes a connecting plate connected to one side of the base, the two sides of the connecting plate are connected with placement ends, the placement ends are connected with a placement plate, the bottom of the placement plate and the side away from the placement end are provided with two symmetrically arranged inclined support rods, the other end of the inclined support rod is connected to one side of the base and is located below the connecting plate.

10. The dynamic and static test model of a cable-stayed bridge according to claim 1, characterized in that: The base is assembled from standard aluminum profiles.

Images