Half-through arch bridge model

Abstract

The utility model provides a half-through arch bridge model, and particularly relates to the technical field of bridge models, the half-through arch bridge model comprises a base, and the base comprises two protruding parts and an inner concave part arranged between the two protruding parts; the tops of the two protruding parts are connected with a bridge floor through supporting assemblies, and limiting bases are arranged on the two sides of the inner wall of the inwards-concave part. The model further comprises two arc-shaped bridge frames, the two ends of the arc-shaped bridge frames penetrate through the two arc-shaped grooves located in the same side and are connected with the tops of the containing bases, and a plurality of inhaul cable assemblies are arranged between the arc-shaped bridge frames and the bridge floor. Through the arrangement of the restored model and the supporting assembly, contact can be provided for bridge surface loaded deformation work, and after bridge surface loaded deformation, a worker can make a human testing tool to measure data changes of the arc-shaped bridge frame, the bridge surface, the inhaul cable assembly, the supporting assembly and the like in the using process.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge models, in particular to a half-through arch bridge model. Background Art

[0002] Steel arch bridges can be divided into deck arch bridges, half-through arch bridges, and through arch bridges according to the position of the carriageway. The carriageway system (bridge deck system) above the arch rib is called a deck arch bridge. In a half-through arch bridge, the carriageway system is located in the middle of the arch rib rise. Part of the bridge deck system is suspended under the arch rib by suspenders, and part is supported on the arch rib by columns. Similarly, the carriageway of a through arch bridge is located below the arch rib and the suspenders;

[0003] Among them, for example, when building a road bridge or conducting structural teaching for a half-through arch bridge, a bridge model is usually formed first, and then dynamic and static load simulation experiments are carried out on the bridge model or structural teaching of the arch bridge is carried out for students;

[0004] Existing half-through arch bridge models have a poor reduction degree to actual arch bridges. At the same time, even if there are models with a high reduction degree, these models can only be used for display and cannot be used for loading test tools.

[0005] Therefore, it is necessary to design a half-through arch bridge model with a high reduction degree to actual bridges and with a loading test function. Content of the Utility Model

[0006] In order to solve the above problems, the utility model proposes a half-through arch bridge model to more precisely solve the above problems.

[0007] The utility model is realized through the following technical solutions:

[0008] The utility model proposes a half-through arch bridge model, which includes a base. The base includes two protruding parts and a concave part arranged between the two protruding parts; the tops of the two protruding parts are connected with a bridge deck through a support component. Four arc-shaped grooves are opened at the top of the bridge deck. Limiting bases are arranged on both sides of the inner wall of the concave part. The limiting base includes a placing seat and a support member connected to one side of the limiting seat. The other side of the support member is connected to the inner wall of the concave part;

[0009] It also includes two arc-shaped bridge frames. Both ends of the arc-shaped bridge frames pass through two arc-shaped grooves on the same side and are connected to the top of the placing seat. A plurality of cable assemblies are arranged between the arc-shaped bridge frames and the bridge deck.

[0010] Further, the placing seat of the utility model includes a bottom plate connected to the concave part. A groove frame for placing the bottom of the arc-shaped bridge frame is arranged at the top of the bottom plate. A slope plate is arranged in the middle of the bottom end of the bottom plate. A fixing hole is opened on one side of the slope plate.

[0011] Further, for the present utility model, the support member includes a fixing plate connected to the inner wall of the base, a support rod connected to the fixing plate, the other end of the support rod is connected with an external threaded rod adapted to the fixing hole, and an adjusting nut is externally fitted to the external threaded rod.

[0012] Further, for the present utility model, four support assemblies are provided, and the four support assemblies include a fixed hinge support, a first adjusting hinge support, a second adjusting hinge support, and a third adjusting hinge support.

[0013] Further, for the present utility model, the fixed hinge support includes a first seat body, and a first support body is connected to the first seat body through a first pin shaft.

[0014] Further, for the present utility model, the first adjusting hinge support includes a second seat body, a second support body is connected to the second seat body through a second pin shaft, a trapezoidal first transverse adjusting groove is horizontally penetrated in the middle of the top end of the second support body, and a first adjusting block is fitted in the first transverse adjusting groove.

[0015] Further, for the present utility model, the second adjusting hinge support includes a third seat body, a third support body is connected to the third seat body through a third pin shaft, a trapezoidal first longitudinal adjusting groove is longitudinally penetrated in the middle of the top end of the third support body, and a second adjusting block is fitted in the first longitudinal adjusting groove.

[0016] Further, for the present utility model, the third adjusting hinge support includes a fourth seat body, a fourth support body is connected to the fourth seat body through a fourth pin shaft, a second transverse adjusting groove is horizontally penetrated in the middle of the top end of the fourth support body, a third adjusting block is fitted in the second transverse adjusting groove, a second longitudinal adjusting groove is longitudinally penetrated in the middle of the top end of the third adjusting block, and a fourth adjusting block is fitted in the second longitudinal adjusting groove.

[0017] Further, for the present utility model, the cable assembly includes a steel wire rope and connectors provided at both ends of the steel wire rope and respectively connected to the bridge deck and the arc-shaped bridge frame.

[0018] Further, for the present utility model, it further includes two approach bridges connected to the outside of the two protruding parts. The approach bridge includes a connecting plate connected to one side of the protruding part, placing ends are connected to both sides of the connecting plate, a placing plate is connected to the placing ends, two symmetrically arranged inclined support rods are provided at the bottom of the placing plate and on the side far from the placing ends, the other ends of the inclined support rods are connected to one side of the base and are located below the connecting plate, and a loading device is provided on one of the approach bridges.

[0019] The beneficial effects of the present utility model:

[0020] The model consists of a base, a support component, a bridge deck, a limit base and an arc-shaped bridge frame, which can restore the actual arch bridge structure at a relatively high level. In the restored model, the support component can provide contact for the bridge deck to deform under load. After the bridge deck deforms under load, the staff can use testing tools to measure the data changes of the arc-shaped bridge frame, the bridge deck, the cable component, the support component, etc. during the use and testing process, with powerful functions. Brief Description of the Drawings

[0021] Figure 1 Schematic diagram of the overall structure in the present utility model;

[0022] Figure 2 Schematic diagram of the base structure in the present utility model;

[0023] Figure 3 Schematic diagram of the limit base structure in the present utility model;

[0024] Figure 4 Schematic diagram of a position sorting structure of the support component in the present utility model;

[0025] Figure 5 In the present utility model Figure 4 Schematic diagram of the fixed hinge support structure;

[0026] Figure 6 In the present utility model Figure 4 Schematic diagram of the first adjustable hinge support structure;

[0027] Figure 7 In the present utility model Figure 4 Schematic diagram of the second adjustable hinge support structure;

[0028] Figure 8 In the present utility model Figure 4 Schematic diagram of the third adjustable hinge support structure;

[0029] Figure 9 Schematic diagram of the sling assembly structure in the figure of the present utility model;

[0030] Figure 10 Schematic diagram of the cross-section structure of the bridge crossing and the base in the figure of the present utility model.

[0031] In the figure, 1 is the base; 11 are the protruding parts; 12 is the concave part; 2 is the support assembly; 21 is the fixed hinge support, including the first seat body 211, the first pin shaft 212, and the first support body 213; 22 is the first adjustable hinge support, including the second seat body 221, the second pin shaft 222, the second support body 223, the first transverse adjustment groove 224, and the first adjustment block 225; 23 is the second adjustable hinge support, including the third seat body 231, the third pin shaft 232, the third support body 233, the first longitudinal adjustment groove 234, and the second adjustment block 235; 24 is the third adjustable hinge support, including the fourth seat body 241, the fourth pin shaft 242, the fourth support body 243, the second transverse adjustment groove 244, the third adjustment block 245, the second longitudinal adjustment groove 246, and the fourth adjustment block 247; 3 is the bridge deck; 31 are the arc grooves; 4 is the limit base, including the placement seat 41, which includes the bottom plate 411, the groove frame 412, the slope plate 413, and the fixing holes 414; 42 is the support member, including the fixing plate 421, the support rod 422, the external threaded rod 423, and the adjusting nut 424; 5 is the arc bridge frame; 6 is the cable assembly, including the steel wire rope 61 and the joint 62; 7 is the approach bridge, including the connecting plate 71, the placement end 72, the placement plate 73, and the slope support rod 74. Detailed implementation mode

[0032] In order to make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below. Obviously, the described embodiments are partial embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] Embodiment

[0034] Refer to Figures 1 - 10 , a medium - through arch bridge model, including the base 1. The base 1 includes two protruding parts 11 and a concave part 12 arranged between the two protruding parts 11; the tops of the two protruding parts 11 are connected to the bridge deck 3 through the support assembly 2. Four arc grooves 31 are opened on the top of the bridge deck 3. On both sides of the inner wall of the concave part 12, limit bases 41 are provided. The limit base 41 includes a placement seat 41 and a support member 42 connected to one side of the limit seat. The other side of the support member 42 is connected to the inner wall of the concave part 12;

[0035] It also includes two arc bridge frames 5. Both ends of the arc bridge frame 5 pass through the two arc grooves 31 on the same side and are connected to the top of the placement seat 41. A number of cable assemblies 6 are arranged between the arc bridge frame 5 and the bridge deck 3;

[0036] The model is composed of a base 1, a support component 2, a bridge deck 3, a limit base 41, and an arc-shaped bridge frame 5, and can restore the actual arch bridge structure at a relatively high level. In the restored model, the support component 2 is provided to provide contact for the bridge deck 3 to work under load deformation. After the bridge deck 3 is deformed under load, the staff can use testing tools to measure the data changes of the arc-shaped bridge frame 5, the bridge deck 3, the cable component 6, the support component 2, etc. during the use and testing process, with powerful functions;

[0037] The installation steps of this model are as follows: First, place the base 1 at the designated position, and install the support component 2 on the protruding part 11 of the base 1. Among them, there are 4 support components 2, and two support components 2 are provided on each protruding part 11. Secondly, the staff takes the bridge deck 3 and installs the bridge deck 3 on the tops of the four support components 2. Then, the staff takes the arc-shaped bridge frame 5 and passes both ends of the arc-shaped bridge frame through the arc-shaped groove 31 to fix the arc-shaped bridge frame 5 on the base 1. Finally, connect the bridge deck 3 and the arc-shaped bridge frame 5 through the cable component 6; The whole model is convenient for disassembly and assembly, and the use site is flexible. At the same time, this model can not only restore the real arch bridge structure, but also use this model to teach students the composition structure of the arch bridge while conducting static and dynamic load experiments, further increasing the applicability of this model;

[0038] In this embodiment, the setting of the limit base 41 can be used to fix the bottom ends of the arc-shaped bridge frame 5 and realize the restriction of the horizontal movement of the bottom of the arc-shaped arch bridge, so as to ensure the stability of the arc-shaped bridge frame 5 during the test process;

[0039] Specifically, when the bridge deck 3 is in the process of use and testing, the test vehicle will apply a load to the bridge deck 3. After the bridge deck 3 receives the load, it will deform downward. At the same time, the cable component 6 connected to the bridge deck 3 will pull the arc-shaped bridge frame 5, and the existence of the limit base 41 can restrict the horizontal movement of the arc-shaped bridge frame 5, further playing a role in protecting the model;

[0040] In this embodiment, two cross beams are provided between the two arc-shaped bridge frames 5. The setting of the two cross beams can increase the stress level of the arc-shaped bridge frame 5 itself and increase the stability of the arc-shaped bridge frame 5 during use;

[0041] It should be noted that for the loading test in this application document, existing testing tools can be used. Since using this model for loading test is not the protection subject of this application document, the process and principle thereof will not be described in detail in this application document.

[0042] Preferably, refer to Figure 3, the placement seat 41 includes a bottom plate 411 connected to the concave portion 12. A groove frame 412 for placing the bottom of the arc-shaped bridge 5 is provided at the top of the bottom plate 411. A slope plate 413 is provided in the middle of the bottom end of the bottom plate 411. A fixing hole 414 is provided on one side of the slope plate 413. The support member 42 includes a fixing plate 421 connected to the inner wall of the base 1, a support rod 422 connected to the fixing plate 421. The other end of the support rod 422 is connected with an external threaded rod 423 that cooperates with the fixing hole 414, and an adjusting nut 424 is externally fitted on the external threaded rod 423;

[0043] Regarding the installation relationship between the placement seat 41 and the support member 42, first, the staff takes the support member 42 and installs the fixing plate 421 on the base 1, and then connects the support rod 422 to the fixing plate 421. Secondly, the staff takes the placement seat 41 and makes the bottom plate 411 contact the top of the base 1. Then, the staff pushes the bottom plate 411 and inserts the external threaded rod 423 into the fixing hole 414, thereby completing the fixing work of the placement seat 41;

[0044] Among them, the setting of the adjusting nut 424 can adjust the position of the placement seat 41. Specifically, the staff rotates the adjusting nut 424 clockwise or counterclockwise, and makes the adjusting nut 424 move left or right along the external threaded rod 423, and adjusts the installation position of the slope plate 413, thereby realizing the adjustment of the installation position of the placement seat 41;

[0045] It should be noted that after the arc-shaped bridge 5 is installed, both ends of the arc-shaped bridge 5 will be connected to the groove frame 412, and the end of the arc-shaped bridge 5 will give an outward horizontal movement thrust to the groove frame 412. The support member 42 and the placement seat 41 cooperate to limit this thrust and install the arc-shaped bridge at the designated position.

[0046] Preferably, referring to Figures 4 - 8 , the installation position of a support assembly 2 is disclosed in this figure. There are four support assemblies 2, and the four support assemblies 2 include a fixed hinge support 21, a first adjustable hinge support 22, a second adjustable hinge support 23, and a third adjustable hinge support 24;

[0047] The fixed hinge support 21 includes a first seat body 211, and a first support body 213 is connected to the first seat body 211 through a first pin shaft 212;

[0048] The first adjustable hinge support 22 includes a second seat body 221, a second support body 223 is connected to the second seat body 221 through a second pin shaft 222. A trapezoidal first horizontal adjustment groove 224 is horizontally penetrated in the middle of the top end of the second support body 223, and a first adjustment block 225 is fitted in the first horizontal adjustment groove 224;

[0049] The second adjusting hinge support 23 includes a third seat body 231. A third support body 233 is connected to the third seat body 231 through a third pin shaft 232. A trapezoidal first longitudinal adjustment groove 234 is longitudinally penetrated through the middle of the top end of the third support body 233. A second adjustment block 235 is fitted in the first longitudinal adjustment groove 234;

[0050] The third adjusting hinge support 24 includes a fourth seat body 241. A fourth support body 243 is connected to the fourth seat body 241 through a fourth pin shaft 242. A second transverse adjustment groove 244 is transversely penetrated through the middle of the top end of the fourth support body 243. A third adjustment block 245 is fitted in the second transverse adjustment groove 244. A second longitudinal adjustment groove 246 is longitudinally penetrated through the middle of the top end of the third adjustment block 245. A fourth adjustment block 247 is fitted in the second longitudinal adjustment groove 246;

[0051] The setting of the fixed hinge support 21 can be used to limit the deformation surface of the bridge deck 3, that is, the two surfaces close to the fixed hinge support 21 cannot deform due to external forces or stability;

[0052] The first adjusting hinge support 22 and the third hinge support cooperate to enable the bridge deck 3 to deform left or right unilaterally due to load or temperature difference; specifically, the first transverse adjustment groove 224 on the first adjusting hinge support 22 and the second transverse adjustment groove 244 on the third adjusting hinge support 24 can provide a basis for the left - right sliding of the first adjustment block 225 and the third adjustment block 245, providing basic conditions for the left - right deformation of the bridge deck 3 unilaterally, so that the bodies of the first adjusting hinge support 22 and the third adjusting hinge support 24 only perform vertical support work on the bridge deck 3 and do not generate gas stress with the bridge deck 3;

[0053] The cooperation between the second adjusting hinge support 23 and the third adjusting hinge support 24 can enable the bridge deck 3 to deform forward or backward unilaterally due to load or temperature difference; the first longitudinal adjustment groove 234 and the second longitudinal adjustment groove 244 on the second adjusting hinge support 23 and the third adjusting hinge support 24 can provide a basis for the forward - backward movement of the second adjustment block 235 and the fourth adjustment block 247 and allow the bridge deck 3 to perform forward - backward deformation work;

[0054] Preferably, referring to Figure 1 , the inner diameter of the arc groove 31 is larger than the arc frame. The advantage of adopting this design is that it can provide space for the deformation work of the bridge deck 3; after the bridge deck 3 is installed, there is a certain gap between one side of the bridge deck and the approach bridge 7. The existence of this gap can provide a basis for the forward - backward deformation work of the bridge deck 3.

[0055] Preferably, referring to Figure 9, the cable assembly 6 includes a steel wire rope 61 and connectors 62 disposed at both ends of the steel wire rope 61 and connected to the bridge deck 3 and the arc-shaped bridge frame 5 respectively. The connections between the two connectors 62 and the bridge deck 3 and the arc-shaped bridge frame 5 are threaded connections. The advantage of using threaded connections is that the overall length of the cable assembly 6 can be adjusted, so that the lengths of the two cables on both sides are the same;

[0056] In this embodiment, the threads on the two connectors 62, one is left-handed and the other is right-handed.

[0057] Preferably, referring to Figure 10 , it further includes two approach bridges 7 connected to the outside of the two protruding parts 11. The approach bridge 7 includes a connecting plate 71 connected to one side of the protruding part 11. Both sides of the connecting plate 71 are connected with placing ends 72. A placing plate 73 is connected to the placing ends 72. At the bottom of the placing plate 73 and on the side far from the placing ends 72, two symmetrically arranged inclined struts 74 are provided. The other ends of the inclined struts 74 are connected to one side of the base 1 and are located below the connecting plate 71. A loading device (not shown in the figure) is provided on one approach bridge 7; the arrangement of the placing ends 72 and the inclined struts 74 can play a role in supporting the placing plate 73. The setting of the placing plate 73 can be used to place the loading device. The cooperation of the placing ends 72 and the inclined struts 74 can realize the circumferential fixation of the bottom of the placing plate 73, so as to ensure the stability of the loading device when placed;

[0058] In this embodiment, the loading device includes an experimental trolley or weights, etc.

[0059] Of course, the present invention can also have many other implementation manners. Based on this implementation manner, other implementation manners obtained by those of ordinary skill in the art without any creative work belong to the scope protected by the present invention.

Claims

1. A mid-through arch bridge model, characterized in that: The base comprises two protruding parts and a concave part arranged between the two protruding parts; the tops of the two protruding parts are connected to a bridge deck through a supporting assembly, the top of the bridge deck is provided with four arc-shaped grooves, and limiting bases are arranged on both sides of the inner wall of the concave part, and the limiting base comprises a placing seat and a supporting member connected to one side of the placing seat, and the other side of the supporting member is connected to the inner wall of the concave part; It also includes two arc-shaped bridge frames, both ends of which pass through two arc-shaped grooves located on the same side and are connected to the top of the placement seat. A number of cable assemblies are arranged between the arc-shaped bridge frame and the bridge deck.

2. A half-through arch bridge model according to claim 1, characterized in that: The placement seat includes a bottom plate connected to the inner recess, a groove frame for placing the bottom of the arc-shaped bridge frame is arranged on the top of the bottom plate, an inclined plate is arranged in the middle of the bottom end of the bottom plate, and a fixing hole is opened on one side of the inclined plate.

3. A half-through arch bridge model according to claim 2, characterized in that: The support member includes a fixing plate connected to the inner wall of the base, and a support rod connected to the fixing plate, the other end of the support rod is connected to an externally threaded rod matched with the fixing hole, and the externally threaded rod is matched with an adjusting nut.

4. A half-through arch bridge model according to claim 1, characterized in that: There are four support assemblies, and the four support assemblies include a fixed hinge support, a first adjustable hinge support, a second adjustable hinge support and a third adjustable hinge support.

5. A half-through arch bridge model according to claim 4, 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.

6. A half-through arch bridge model according to claim 4, characterized in that: The first adjustment hinge support includes a second seat body, and the second seat body is connected to a second support body through a second pin shaft. 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.

7. A half-through arch bridge model according to claim 4, characterized in that: The second adjustment 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 fitted in the first longitudinal adjustment groove.

8. The half-through arch bridge model according to claim 4, characterized in that: The third adjustment 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 provided in the transverse direction 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 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.

9. A half-through arch bridge model according to claim 7, characterized in that: The cable assembly includes a steel wire rope and joints which are arranged at both ends of the steel wire rope and are respectively connected to the bridge deck and the arc-shaped bridge frame.

10. The half-through arch bridge model according to claim 1, characterized in that: It also includes two approach bridges connected to the outer sides of the two protrusions, the approach bridges include connecting plates connected to the protrusions on one side, the two sides of the connecting plates 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, and a loading device is provided on one of the approach bridges.

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