Double-suspender buffering and damping structure for tied-arch bridge
By adopting a double hanging boom structure and shock-absorbing buffer assembly in the tied arch bridge, the problem of unstable connection between the hanging boom and the anchor is solved, the stability and cushioning performance of the bridge are improved, and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202422395798.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The connection between the boom and the anchor in the existing tie-fitting arch bridge lacks effective protection, resulting in high maintenance costs and poor cushioning of the boom, which affects the stability of the bridge.
It adopts a double hanging boom structure, including an upper hanging boom and a lower hanging boom. The bottom end of the lower hanging boom is fixedly connected to the main beam through a reinforced structure, and shock absorbing components and cushioning components are provided between the upper and lower hanging booms to enhance connection stability and cushioning.
It improves the buffering and shock absorption performance of the boom assembly, enhances the overall stability and support stability of the tied arch bridge, reduces maintenance costs, is simple in structure and is easy to install.
Smart Images
Figure CN223103450U_ABST
Abstract
Description
Field of the Invention
[0001] The utility model relates to a double-hanger buffer and shock-absorbing structure for a tied-arch bridge, belonging to the technical field of bridge shock absorption. Background Art
[0002] The beam-arch composite bridge is a kind of bridge that combines two basic structural forms of arch and beam to jointly bear the load, giving full play to the structural performance and combined action of the beam in bending and the arch in compression. Due to its advantages such as strong load-bearing capacity, large structural stiffness, good environmental coordination, and short construction period, it is widely used in urban bridges and railway overpasses. Among them, the main beam adopts prestressed concrete, and the arch rib adopts the structural form of dumbbell-shaped concrete-filled steel tube, which has outstanding economic advantages and is most widely used in beam-arch composite bridges with a main span range of 50-200m.
[0003] The beam-arch composite bridge can generally be divided into two types: with thrust and without thrust. Among them, the tied-arch bridge is a beam-arch composite bridge without thrust. The tied-arch bridge mainly includes components such as the main beam, arch rib, and hanger. Among them, the hanger is a force-transferring component between the arch rib and the main beam in the tied-arch bridge, and it is usually required to have the performance of clear force transfer, uniform stress, good anchoring performance, and high reliability. At present, when constructing a tied-arch bridge, the hanger is usually fixedly connected to the main beam using an anchor. However, in the existing tied-arch bridge, the connection between the hanger and the anchor lacks effective protection measures, resulting in the need for frequent maintenance of the hanger during long-term use, increasing the time cost and labor cost. At the same time, the buffering performance between the hanger and the anchor is poor, resulting in the stability of the tied-arch bridge being easily affected. In addition, at present, the arch rib and the main beam of the tied-arch bridge are mainly connected by a single hanger, and the hanger itself does not have buffer and shock-absorbing properties, resulting in poor force transfer performance of the hanger and affecting the overall stability of the tied-arch bridge. Summary of the Utility Model
[0004] Aiming at the above problems existing in the prior art, the purpose of the utility model is to provide a double-hanger buffer and shock-absorbing structure for a tied-arch bridge.
[0005] To achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A double-hanger buffer and shock-absorbing structure for a tied-arch bridge, comprising a main beam and an arch rib arranged on the top of the main beam. A hanger assembly is vertically connected between the main beam and the arch rib. The hanger assembly includes an upper hanger and a lower hanger. A reinforcement structure is connected between the bottom end of the lower hanger and the main beam. The reinforcement structure includes a reinforcement cylinder sleeve sleeved on the bottom end of the lower hanger. Angle codes are respectively arranged on both sides of the connection between the reinforcement cylinder sleeve and the main beam. Bolts penetrate through the outer surface of the angle codes, and the angle codes are fixedly connected to the reinforcement cylinder sleeve and the main beam respectively by the bolts. A number of buffer components are symmetrically connected between the two sides of the bottom of the lower hanger and the reinforcement sleeve. The top end of the upper hanger is connected to the arch rib. The axes of the upper hanger and the lower hanger coincide, and a shock-absorbing component is connected between the upper hanger and the lower hanger.
[0007] An implementation scheme, the buffer component includes two oppositely arranged backing plates. One backing plate is arranged inside the reinforcement sleeve, and the other backing plate is arranged on the side of the lower hanger facing the reinforcement sleeve. Two oppositely arranged arc-shaped plates are installed between the two backing plates. Elastic blocks are installed on the inner sides of the arc-shaped plates. A buffer spring is connected between the elastic blocks.
[0008] An implementation scheme, the shock-absorbing component includes two damping shock absorbers and a shock-absorbing bottom plate horizontally arranged on the top of the lower hanger. A shock-absorbing support plate is horizontally arranged in the middle of the top of the shock-absorbing bottom plate. The two damping shock absorbers are vertically and symmetrically arranged on the top of the shock-absorbing support plate. The bottom of the damping shock absorber is fixedly connected to the top of the shock-absorbing support plate, and the top of the damping shock absorber is fixedly connected to the bottom of the upper hanger. Positioning strips are symmetrically arranged on both sides of the top of the shock-absorbing bottom plate. The inner ends of the positioning strips extend to the outside of the top of the shock-absorbing support plate and are fixedly connected to the shock-absorbing support plate by locking bolts.
[0009] An implementation scheme, the inside of the lower hanger is filled with a first reinforcing rib. A support frame is arranged inside the main beam. The inside of the support frame is filled with a second reinforcing rib. The first reinforcing rib is anchored into the inside of the support frame and connected to the second reinforcing rib.
[0010] A preferred scheme, a reinforcing rib reinforcement sleeve is sleeved on the surface of one end of the first reinforcing rib extending into the inside of the support frame.
[0011] An implementation scheme, the inside bottom end of the reinforcement sleeve and the inside of the support frame are both filled with concrete.
[0012] Compared with the prior art, the beneficial technical effects of the present utility model are as follows:
[0013] The double-hanger buffer and shock-absorbing structure for tied-arch bridges provided by the present utility model has a double-hanger structure of an upper hanger rod and a lower hanger rod connected up and down for the hanger rod assembly connected between the main beam and the arch rib. Moreover, a shock-absorbing assembly is connected between the upper hanger rod and the lower hanger rod, making the hanger rod assembly itself have shock-absorbing properties and better force transmission performance, which can effectively improve the overall stability of the tied-arch bridge. In addition, the bottom end of the lower hanger rod is fixedly connected to the main beam through a reinforcement structure, and a buffer assembly is provided between the reinforcement structure and the lower hanger rod, which not only plays a safety protection role for the bottom end of the lower hanger rod, but also makes the buffer performance and connection stability between the lower hanger rod and the reinforcement structure good, thereby making the overall support stability of the tied-arch bridge good. The structure is simple and the installation is convenient, having remarkable practical value. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 is a schematic diagram of the double-hanger buffer and shock-absorbing structure for tied-arch bridges provided in the embodiment of the present utility model;
[0015] Figure 2 is a top view of the part of the lower hanger rod and the reinforcement structure in the embodiment of the present utility model;
[0016] Figure 3 is Figure 1 a partial enlarged view of A in
[0017] Figure 4 is Figure 2 a partial enlarged view of B in
[0018] The reference numerals in the drawings are indicated as follows:
[0019] 1, main beam; 2, arch rib; 3, upper hanger rod; 4, lower hanger rod; 5, reinforcement structure; 501, reinforcement barrel sleeve; 502, angle code; 503, bolt; 6, buffer assembly; 601, backing plate; 602, arc plate; 603, elastic block; 604, buffer spring; 7, shock-absorbing assembly; 701, damping shock absorber; 702, shock-absorbing bottom plate; 703, shock-absorbing support plate; 704, positioning strip; 705, locking bolt; 8, screw for connecting the upper hanger rod and the damping shock absorber; 9, first reinforcing rib; 10, support frame; 11, second reinforcing rib; 12, reinforcing rib reinforcement sleeve. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The technical solution of the present utility model will be further described in detail below in conjunction with the drawings and embodiments. In addition, it should be noted that the terms used in the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. Unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those of ordinary skill in the art. The orientation or positional relationship indicated by terms such as "inside", "outside", "above", "below", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "clockwise", "counterclockwise", etc. are all based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation of the present utility model. In addition, terms such as "set", "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection or a detachable connection; it can be a mechanical connection; it can be directly connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances; terms such as "first", "second", etc. are only for descriptive purposes, and there can be one or more such features. In the description of the present utility model, the meaning of "a plurality" is two or more unless otherwise specifically defined; it should also be noted that when an element is referred to as "fixed to" or "set on" another element, it can be directly on the other element or there can also be an intermediate element.
[0021] Embodiment
[0022] Combined with Figures 1 to 4 As shown: A double-hanger buffer and shock-absorbing structure for a tied-arch bridge provided by the present utility model includes a main beam 1 and an arch rib 2 provided on the top of the main beam 1. A hanger assembly is vertically connected between the main beam 1 and the arch rib 2. The hanger assembly includes an upper hanger 3 and a lower hanger 4. A reinforcement structure 5 is connected between the bottom end of the lower hanger 4 and the main beam. The reinforcement structure 5 includes a reinforcement barrel sleeve 501 sleeved on the bottom end of the lower hanger 4. Angle codes 502 are respectively provided on both sides of the connection between the reinforcement barrel sleeve 501 and the main beam 1. Bolts 503 penetrate through the outer surface of the angle codes 502, and the angle codes 502 are fixedly connected to the reinforcement barrel sleeve 501 and the main beam 1 respectively through the bolts 503. A plurality of buffer assemblies 6 are symmetrically connected between the two sides of the bottom of the lower hanger 4 and the reinforcement sleeve 501 respectively. The top end of the upper hanger 3 is connected to the arch rib 2. The axes of the upper hanger 3 and the lower hanger 4 coincide, and a shock-absorbing assembly 7 is connected between the upper hanger 3 and the lower hanger 4.
[0023] The working principle of the double-hanger buffer and shock-absorbing structure for a tied-arch bridge of the present utility model is as follows:
[0024] During installation, the bottom end of the lower suspension rod 4 is fixedly connected to the main beam 1 through the reinforcement structure 5 according to the bridge design drawing. A shock absorption component 7 is installed at the top of the lower suspension rod 4, and the bottom of the upper suspension rod 3 is connected to the top of the shock absorption component 7 (specifically, the bottom of the upper suspension rod 3 can be fixedly connected to the top of the shock absorption component 7 through an external screw 8). In this way, the upper suspension rod 3 and the lower suspension rod 4 are fixedly connected through the shock absorption component 7, and the top end of the upper suspension rod 3 is fixedly connected to the arch rib 2. In this way, a suspension rod assembly is vertically connected between the main beam 1 and the arch rib 2 (since the lower suspension rod 4 is connected to the main beam 1 and bears a greater force than the upper suspension rod 3, therefore, in the design, as Figure 1 shown, the diameter of the lower suspension rod 4 is larger than that of the upper suspension rod 3);
[0025] As described above, it can be seen that the suspension rod assembly in the present utility model is obtained by connecting the upper suspension rod 3 and the lower suspension rod 4 up and down. It is equivalent to forming a segmented suspension rod by the two suspension rods, the upper suspension rod 3 and the lower suspension rod 4. And because there is a shock absorption component 7 connected between the upper suspension rod 3 and the lower suspension rod 4, therefore, during use, when the suspension rod assembly transfers force between the arch rib 2 and the main beam 1, it itself has good buffer and shock absorption functions, not only has good force transfer performance, but also can effectively improve the overall stability of the tied arch bridge;
[0026] In addition, the bottom end of the lower suspension rod 4 is fixedly connected to the main beam 1 through a reinforcing cylinder sleeve 501, an angle code 502 and a bolt 503. Among them, the reinforcing structure 5 composed of the reinforcing cylinder sleeve 501, the angle code 502 and the bolt 503 is more firmly connected than the traditional anchor, and at the same time, the reinforcing cylinder sleeve 501 also has a good safety protection effect on the lower suspension rod 4. In addition, a buffer component 6 is provided between the lower suspension rod 4 and the reinforcing sleeve 501, so that the buffer and connection stability between the lower suspension rod 4 and the reinforcing structure 5 are good, thereby making the overall support stability of the tied arch bridge good.
[0027] In this embodiment, referring to Figure 4 shown, the buffer component 6 includes two oppositely arranged cushion plates 601. One of the cushion plates 602 is arranged inside the reinforcing sleeve 501 (specifically, it can be fixedly arranged inside the reinforcing sleeve 501 through screws, which belongs to well-known technology and the marking of the screws is omitted in the figure), and the other cushion plate 601 is arranged on the side of the lower suspension rod 4 facing the reinforcing sleeve 601 (specifically, it can be fixedly arranged inside the reinforcing sleeve 501 through screws, which belongs to well-known technology and the screws are omitted in the figure). Two oppositely arranged arc-shaped plates 602 are installed between the two cushion plates 601. Elastic blocks 603 are installed on the inner sides of the arc-shaped plates 602, and a buffer spring 604 is connected between the elastic blocks 603. The number of arc-shaped plates 602 arranged on each cushion plate 601 can be adjusted according to the usage situation. Specifically, combining Figure 2 and Figure 4It can be seen that in this embodiment, in each set of buffer components 6, two symmetrically arranged arc-shaped plates 602 are provided on each backing plate 601. That is to say, each set of buffer components 6 includes two backing plates 601, four arc-shaped plates 602, four elastic blocks 603, and two buffer springs 604, making the overall buffer effect of the buffer components 6 better. When in use, when the lower suspension rod 4 and the reinforcement structure 5 vibrate, the backing plate 601 can drive the arc-shaped plate 602 to shake slightly under the action of external force, and then the arc-shaped plate 602 drives the elastic block 603 to move. The elastic block 603 weakens the amplitude force by squeezing the buffer spring 604, thereby achieving a buffer effect and making the connection between the lower suspension rod 4 and the reinforcement structure 5 stable. The number of buffer components 6 can be adjusted according to the usage requirements. In this embodiment, refer to Figure 2 As shown, four sets of buffer components 6 are provided, and the four sets of buffer components 6 are symmetrically arranged in pairs on both sides of the bottom of the lower suspension rod 4 and the reinforcement sleeve 501.
[0028] In this embodiment, refer to Figure 3 As shown, the shock absorption component 7 includes two damping shock absorbers 701 and a shock absorption bottom plate 702 horizontally arranged on the top of the lower suspension rod 4. A shock absorption support plate 703 is horizontally arranged in the middle of the top of the shock absorption bottom plate 702. The two damping shock absorbers 701 are vertically and symmetrically arranged on the top of the shock absorption support plate 703. The bottom of the damping shock absorber 701 is fixedly connected to the top of the shock absorption support plate 703, and the top of the damping shock absorber 701 is fixedly connected to the bottom of the upper suspension rod 3 (specifically, the top of the damping shock absorber 701 is fixedly connected to the bottom of the upper suspension rod 3 through an external screw 8). Positioning strips 704 are symmetrically arranged on both sides of the top of the shock absorption bottom plate 702. The inner ends of the positioning strips 704 extend to the outside of the top of the shock absorption support plate 703 and are fixedly connected to the shock absorption support plate 703 through locking bolts 705. When in use, when the main beam 1 or the arch rib 2 vibrates, the generated vibration will be correspondingly transmitted to the lower suspension rod 4 or the upper suspension rod 3, resulting in vibration between the upper suspension rod 3 and the lower suspension rod 4. Since the damping shock absorber 701 is connected between the upper suspension rod 3 and the lower suspension rod 4, the damping shock absorber 701 can effectively absorb the vibration between the upper suspension rod 3 and the lower suspension rod 4, playing a shock absorption role, thereby facilitating the transmission of force between the main beam 1 and the arch rib 2 and effectively improving the overall stability of the tied arch bridge. In the shock absorption component 7, the horizontal cross-sectional area of the shock absorption bottom plate 702 is larger than the horizontal cross-sectional area of the lower suspension rod 4, so as to facilitate better installation and fixation of the shock absorption support plate 703 and the positioning strips 704. The positioning strips 704 are used for horizontal positioning of the fixed shock absorption support plate 703, thereby positioning the damping shock absorbers 701.
[0029] In this embodiment, refer to Figure 1As shown, the interior of the lower suspension rod 4 is filled with a first reinforcing rib 9. A support frame 10 is provided inside the main beam 1. The interior of the support frame 10 is filled with a second reinforcing rib 11. The first reinforcing rib 9 is anchored into the interior of the support frame 10 and connected to the second reinforcing rib 11, which plays a strengthening role for the lower suspension rod 4 and the main beam 1, increasing the overall stability and support strength of the lower suspension rod 4 and the main beam 1.
[0030] In addition, one end surface of the first reinforcing rib 9 extending into the interior of the support frame 10 is sleeved with a reinforcing rib reinforcement sleeve 12 to fix the bottom of the first reinforcing rib 9, improving the stability of the first reinforcing rib 9 and the second reinforcing rib 11 connected thereto, strengthening the stability between the lower suspension rod 4 and the main beam 1. Thus, when it is necessary to pour concrete into the first reinforcing rib 9 and the second reinforcing rib 11, the first reinforcing rib 9 and the second reinforcing rib 11 can be in a stable state, facilitating construction.
[0031] Correspondingly, the interior bottom end of the reinforcing sleeve 501 and the interior of the support frame 10 are both filled with concrete (omitted in the figure), strengthening the stability between the lower suspension rod 4 and the main beam 1.
[0032] Finally, it is necessary to point out here that the above description is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A double-hanger buffer and shock-absorbing structure for a tied-arch bridge, comprising a main girder and an arch rib arranged on the top of the main girder, characterized in that: A suspension rod assembly is vertically connected between the main beam and the arch rib. The suspension rod assembly includes an upper suspension rod and a lower suspension rod. A reinforcement structure is connected between the bottom end of the lower suspension rod and the main beam. The reinforcement structure includes a reinforcement barrel sleeve sleeved on the bottom end of the lower suspension rod. Angle codes are respectively arranged on both sides of the connection between the reinforcement barrel sleeve and the main beam. Bolts penetrate through the outer surface of the angle code, and the angle code is fixedly connected to the reinforcement barrel sleeve and the main beam respectively through the bolts. A plurality of buffer components are symmetrically connected between the two sides of the bottom of the lower suspension rod and the reinforcement sleeve. The top end of the upper suspension rod is connected to the arch rib. The axes of the upper suspension rod and the lower suspension rod coincide, and a shock absorption component is connected between the upper suspension rod and the lower suspension rod.
2. The double-hanger buffer and shock-absorbing structure for tied-arch bridges according to claim 1, wherein: The buffer component includes two oppositely arranged backing plates. One backing plate is arranged inside the reinforcement sleeve, and the other backing plate is arranged on the side of the lower suspension rod facing the reinforcement sleeve. Two oppositely arranged arc-shaped plates are installed between the two backing plates. Elastic blocks are installed on the inner sides of the arc-shaped plates, and buffer springs are connected between the elastic blocks.
3. The double-hanger buffer and shock-absorbing structure for tied-arch bridges according to claim 1, characterized in that: The shock absorption component includes two damping shock absorbers and a shock absorption bottom plate horizontally arranged on the top of the lower suspension rod. A shock absorption support plate is horizontally arranged in the middle of the top of the shock absorption bottom plate. The two damping shock absorbers are vertically and symmetrically arranged on the top of the shock absorption support plate. The bottom of the damping shock absorber is fixedly connected to the top of the shock absorption support plate, and the top of the damping shock absorber is fixedly connected to the bottom of the upper suspension rod. Positioning strips are symmetrically arranged on both sides of the top of the shock absorption bottom plate. The inner ends of the positioning strips extend to the outside of the top of the shock absorption support plate and are fixedly connected to the shock absorption support plate through locking bolts.
4. The double-hanger buffer and shock-absorbing structure for tied-arch bridges according to claim 1, characterized in that: The interior of the lower suspension rod is filled with first reinforcing ribs. A support frame is arranged inside the main beam, and the interior of the support frame is filled with second reinforcing ribs. The first reinforcing ribs are anchored into the interior of the support frame and are connected to the second reinforcing ribs.
5. The double hanger buffer and shock absorption structure for tied arch bridge according to claim 4, characterized in that: A reinforcing rib reinforcement sleeve is sleeved on the surface of one end of the first reinforcing rib extending into the interior of the support frame.