Fabricated pier and straining beam energy dissipation connecting structure and bridge
By setting a detachable energy-consuming component between the bridge pier and the beam to absorb seismic energy, the problem of bridges being unable to pass for a long time after the earthquake is solved, and rapid recovery of traffic capacity and efficient maintenance are achieved.
Patent Information
- Application Number
- CN202422286333.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-19
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-19
AI Technical Summary
During an earthquake, the connection between the piers and the beams is easily damaged, and the repair time is long, resulting in the bridge being unable to pass for a long time.
The energy-consuming connection structure of the prefabricated bridge pier and the system beam is adopted. By setting a detachable energy-consuming member on the bridge pier and the system beam, the energy-consuming member absorbs energy during earthquakes, and controls the deformation and damage of the bridge to achieve rapid recovery of traffic.
After an earthquake, by replacing energy-consuming components, bridges can restore traffic capacity in a short period of time, improve maintenance efficiency, and reduce traffic impact.
Smart Images
Figure CN223134949U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technology of bridge structure, in particular to an assembled pier and tie beam energy dissipation connection structure and a bridge. Background Art
[0002] With the advancement of my country's transportation construction, more and more highway lines pass through mountainous areas, and prefabricated bridges have ushered in technical challenges. Highway bridges widely use column piers. For bridges with pier heights greater than 10m and seismic requirements, pier tie beams are generally required to reduce the pier bending moment value under the transverse earthquake force of the bridge and improve the seismic performance.
[0003] At present, the connection between the bridge piers and the tie beams is rigid. When an earthquake occurs, the piers and tie beams will be damaged to varying degrees, and the repair and maintenance will take a certain amount of time, resulting in the bridge being unpassable for a long time after being damaged. Utility Model Content
[0004] The technical problem to be solved by the utility model is that the current bridges and tie beams will be deformed or even damaged during earthquakes, and the repair and maintenance time is long, so the bridge is not passable for a long time. The purpose is to provide an assembled pier and tie beam energy-consuming connection structure and a bridge, which can protect the piers and tie beams by sacrificing the energy-consuming structure, control the deformation and damage of the tie beams, protect the pier structure, and after replacing the energy-consuming components, the bridge can be restored to passable conditions in a relatively short time.
[0005] The utility model is realized by the following technical solutions:
[0006] An assembled pier and tie beam energy-absorbing connection structure comprises a pier embedded plate, a tie beam embedded plate and at least one energy-absorbing component. The pier embedded plate and the tie beam embedded plate are respectively connected to the pier and the tie beam, and two ends of the energy-absorbing component are respectively detachably connected to the pier embedded plate and the tie beam embedded plate.
[0007] The utility model adopts the above scheme, by arranging pier embedded plates and tie beam embedded plates, and detachably connecting the two ends of the energy-absorbing component to the pier embedded plates and the tie beam embedded plates respectively, instead of the original rigid connection, when an earthquake occurs, the pier undergoes lateral displacement, the energy-absorbing component rotates, and buckles due to compression instability, absorbs seismic energy, controls the deformation and damage of the tie beam, protects the pier structure, and after replacing the energy-absorbing component, the bridge can be restored to passable conditions in a relatively short time. At the same time, since the energy-absorbing component is detachably connected to the pier and the tie beam, it is convenient to improve the efficiency of replacing the energy-absorbing component, thereby improving the efficiency of bridge maintenance, and having little impact on traffic.
[0008] Preferably, the pier embedded plate is vertically arranged on the pier, and the main reinforcement of the pier is overlapped and fully welded on the pier embedded plate.
[0009] In this way, by vertically arranging the pier embedded plate on the pier, it is convenient for the main reinforcement bars of the pier to be lap-welded full-length on the pier embedded plate, which is conducive to improving the connection strength and stiffness between the pier embedded plate and the pier.
[0010] Preferably, several through holes are formed on the pier embedded plate, and the through holes are used for the pier stirrups to pass through.
[0011] In this way, by using through holes as the through holes, several through holes are arranged on the pier embedded plate, and the pier stirrups pass through the through holes, so that the pier embedded plate is connected to the pier stirrups, further improving the connection strength and stiffness between the pier embedded plate and the pier.
[0012] Preferably, one end of the pier embedded plate away from the main reinforcement bars of the pier extends out of the pier and is connected to the energy dissipation member by bolts.
[0013] In this way, by extending one end of the pier embedded plate away from the main reinforcement bars of the pier out of the pier and connecting it to the energy dissipation member by bolts, it is convenient to replace and repair the energy dissipation member.
[0014] Preferably, the crossbeam embedded plate is vertically connected to the end of the crossbeam, and the longitudinal reinforcement bars of the crossbeam are lap-welded full-length on the crossbeam embedded plate.
[0015] In this way, by vertically connecting the crossbeam embedded plate to the end of the crossbeam, it is convenient for the longitudinal reinforcement bars of the crossbeam to be lap-welded full-length on the crossbeam embedded plate, improving the connection strength and stiffness between the crossbeam embedded plate and the longitudinal reinforcement bars of the crossbeam.
[0016] Preferably, several through holes are formed on the crossbeam embedded plate, and the through holes are used for the crossbeam stirrups to pass through.
[0017] In this way, by forming several through holes on the crossbeam embedded plate for the crossbeam stirrups to pass through, a connection is formed between the crossbeam embedded plate and the crossbeam stirrups, further improving the connection strength and stiffness between the crossbeam embedded plate and the crossbeam.
[0018] Preferably, the energy dissipation member is integrally in the shape of a rectangular plate, several kidney-shaped holes are respectively arranged at both ends of the rectangular plate, bolt connection holes are respectively formed on the pier embedded plate and the crossbeam embedded plate, and connecting bolts pass through the bolt connection holes and the kidney-shaped holes to respectively connect the pier embedded plate and the crossbeam embedded plate to both ends of the energy dissipation member.
[0019] In this way, by respectively arranging several kidney-shaped holes at both ends of the energy dissipation member and forming bolt connection holes on the pier embedded plate and the crossbeam embedded plate respectively, it is convenient to reduce the assembly difficulty when connecting the energy dissipation member to the pier embedded plate and the crossbeam embedded plate.
[0020] Preferably, several energy dissipation holes are formed in the middle of the energy dissipation member.
[0021] In this way, by forming several energy dissipation holes in the middle of the energy dissipation member, it is convenient for the energy dissipation member to deform under the action of seismic force. The seismic force is absorbed through the energy dissipation holes, causing the energy dissipation member to deform.
[0022] Preferably, the energy dissipation holes are strip-shaped through holes arranged horizontally, and several of the strip-shaped through holes are parallel to each other.
[0023] In this way, by using strip-shaped through holes arranged horizontally for the energy dissipation holes and making several of the strip-shaped through holes parallel to each other, it is convenient to control the occurrence position, energy dissipation capacity, and failure mode of the plastic deformation of the energy dissipation member through the strip-shaped holes, thereby better protecting the bridge pier and the cross beam.
[0024] On the other hand, the present utility model provides a bridge, including an assembled bridge pier and a cross beam energy dissipation connection structure.
[0025] Compared with the prior art, the present utility model has the following advantages and beneficial effects:
[0026] 1. By arranging an energy dissipation member and detachably connecting the two ends of the energy dissipation member to the bridge pier embedded plate and the cross beam embedded plate respectively, replacing the original rigid connection. When an earthquake occurs, the bridge pier undergoes a lateral displacement, the energy dissipation member rotates, and is compressed and buckles to lose stability, absorbing the seismic energy, controlling the deformation and damage of the cross beam, protecting the bridge pier structure. After replacing the energy dissipation member, the bridge can resume the passable condition in a short time.
[0027] 2. Since the energy dissipation member is detachably connected to the bridge pier and the cross beam, it is convenient to improve the efficiency of replacing the energy dissipation member, and thus improve the efficiency of bridge maintenance.
[0028] 3. Several kidney-shaped holes are respectively arranged at the two ends of the energy dissipation member, and bolt connection holes are respectively formed on the bridge pier embedded plate and the cross beam embedded plate, so that the connection position of the connecting bolts can be adjusted to a certain extent, which is convenient for reducing the difficulty of connecting the energy dissipation member to the bridge pier embedded plate and the cross beam embedded plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not constitute a limitation to the embodiments of the present utility model. In the drawings:
[0030] Figure 1 is a schematic structural diagram of the present utility model;
[0031] Figure 2 is a partial structural diagram of the present utility model;
[0032] Figure 3 is a structural diagram of the energy dissipation steel in the present utility model;
[0033] Figure 4 This is a partial structural diagram of the present utility model.
[0034] Marks in the attached drawings and corresponding part names:
[0035] Bridge pier 20, cross beam 30, embedded plate 1 of bridge pier, energy dissipation steel section 2, embedded plate 3 of cross beam, main reinforcement 5 of bridge pier, stirrup 6 of bridge pier, through hole 7, kidney-shaped hole 8, energy dissipation hole 9, bolt connection hole 10, longitudinal reinforcement 11 of cross beam, stirrup 12 of cross beam. Specific embodiments
[0036] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and the attached drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and shall not be construed as a limitation to the present utility model.
[0037] Throughout the specification, the reference to "an embodiment", "embodiments", "an example" or "examples" means that the specific features, structures or characteristics described in connection with the embodiment or example are included in at least one embodiment of the present utility model. Therefore, the phrases "an embodiment", "embodiments", "an example" or "examples" appearing throughout the specification do not necessarily refer to the same embodiment or example. In addition, the specific features, structures or characteristics may be combined in any appropriate combination and / or sub-combination in one or more embodiments or examples. In addition, those of ordinary skill in the art should understand that the drawings provided herein are for illustrative purposes only and are not necessarily drawn to scale. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0038] In the description of the present utility model, the orientation or positional relationship indicated by terms such as "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the protection scope of the present utility model.
[0039] The terms "first", "second", etc. used in the present utility model are only used to distinguish the corresponding components clearly and are not intended to limit any order or emphasize importance, etc. In addition, the term "connection" used herein, without special explanation, may be directly connected or indirectly connected through other components.
[0040] Embodiment 1
[0041] Embodiment 1 provides an energy-dissipating connection structure between a precast pier and a cross beam, as Figures 1 - 4 shown, which includes a pier embedded plate 1, a cross beam embedded plate 3 and at least one energy-dissipating member. The pier embedded plate 1 and the cross beam embedded plate 3 are respectively connected to a pier 20 and a cross beam 30, and both ends of the energy-dissipating member are detachably connected to the pier embedded plate 1 and the cross beam embedded plate 3 respectively.
[0042] Among them, the pier 20 has pier main reinforcements 5 and pier stirrups 6. Several pier main reinforcements 5 are vertically arranged along the length direction of the pier 20. The pier stirrups 6 are horizontally arranged around the outer circumference of several pier main reinforcements 5 and are welded to the pier main reinforcements 5, so that the overall steel bars of the pier form a vertical strip-shaped frame structure.
[0043] The cross beam 30 is horizontally arranged on the pier 20. The cross beam 30 includes cross beam longitudinal reinforcements 11 and cross beam stirrups 12. Several cross beam longitudinal reinforcements 11 are horizontally arranged along the length direction of the cross beam 30. The cross beam stirrups 12 are horizontally arranged around the outer circumference of several pier main reinforcements 5 and are welded to the cross beam longitudinal reinforcements 11, so that the overall steel bars of the cross beam form a horizontal strip-shaped frame. Preferably, multiple energy-dissipating members are arranged in parallel.
[0044] In order to prevent the energy-dissipating member from being severely damaged and fractured during a major earthquake, resulting in the cross beam 30 falling off the pier 20, a safety chain can be provided. Both ends of the safety chain are respectively connected to the cross beam 30 and the pier 20.
[0045] See Figures 1 to 4 , the pier embedded plate 1 is vertically arranged on the pier 20, which is convenient for the pier embedded plate 1 to be connected to a sufficient number of pier main reinforcements 5, and the pier main reinforcements 5 are lap-welded to the pier embedded plate 1, which is convenient for improving the connection strength and stiffness between the pier embedded plate 1 and the pier 20.
[0046] See Figures 1 to 4 , the pier embedded plate 1 is integrally in a rectangular plate structure. Several through holes 7 are formed on the pier embedded plate 1. The through holes 7 are used for the pier stirrups 6 to pass through, so that the pier embedded plate 1 is connected to the pier stirrups 6, further improving the connection strength and stiffness between the pier embedded plate 1 and the pier 20.
[0047] Specifically, the through hole 7 can also be set as a circular through hole 7 or a polygonal through hole 7. The structure of the through hole 7 can be set according to the cross-sectional structure of the pier stirrups 6, which is convenient for the through hole 7 to be in sliding fit with the pier stirrups 6.
[0048] See Figure 1 and Figure 4 , one end of the pier embedded plate 1 away from the pier main reinforcements 5 extends out of the pier 20 and is connected to the energy-dissipating member by bolts, which is convenient for replacing, disassembling and repairing the energy-dissipating member.
[0049] See Figures 1 to 4, the embedded plate 3 of the cross beam is integrally a rectangular plate and is vertically connected to the end of the cross beam 30. The longitudinal bars 11 of the cross beam are lap-welded full-length on the embedded plate 3 of the cross beam, facilitating the lap-welding full-length of the longitudinal bars 11 of the cross beam on the embedded plate 3 of the cross beam, and improving the connection strength and stiffness between the embedded plate 3 of the cross beam and the longitudinal bars 11 of the cross beam.
[0050] See Figure 4 , several through holes 7 are formed on the embedded plate 3 of the cross beam. The through holes 7 are used for the stirrups 12 of the cross beam to pass through, forming a connection between the embedded plate 3 of the cross beam and the stirrups 12 of the cross beam, and further improving the connection strength and stiffness between the embedded plate 3 of the cross beam and the cross beam 30.
[0051] See Figures 1 to 4 , the energy dissipation component is integrally a rectangular plate. Several kidney-shaped holes 8 are respectively arranged at both ends of the rectangular plate. Bolt connection holes 10 are respectively formed on the embedded plate 1 of the pier and the embedded plate 3 of the cross beam. The connecting bolts pass through the bolt connection holes 10 and the kidney-shaped holes 8 to respectively connect the embedded plate 1 of the pier and the embedded plate 3 of the cross beam at both ends of the energy dissipation component, facilitating the reduction of the difficulty in connecting the energy dissipation component with the embedded plate 1 of the pier and the embedded plate 3 of the cross beam.
[0052] See Figures 1 to 4 , several energy dissipation holes 9 are formed in the middle of the energy dissipation component. It is convenient to absorb the seismic action force through the energy dissipation holes 9, and the energy dissipation component deforms under the seismic action force.
[0053] Specifically, the energy dissipation component can be made of section steel. Utilizing the high ductility of the section steel, through controlling the thickness of the section steel plate and the opening settings, energy dissipation design is carried out to control the occurrence position of the plastic hinge, as well as the energy dissipation capacity and the failure mode. It can also be made by processes such as integral molding.
[0054] See Figure 2 , the energy dissipation holes 9 are strip-shaped through holes 7 arranged horizontally, and several of the strip-shaped through holes 7 are parallel to each other. It is convenient to control the occurrence position of the plastic deformation of the energy dissipation component, as well as the energy dissipation capacity and the failure mode through the strip-shaped holes.
[0055] For the energy dissipation component in the present utility model, during design checking and calculation, according to the construction process and structural boundaries, the stability and deformation of the energy dissipation section steel 2 under normal circumstances are checked, and the bolt connection design of the embedded plate 1 of the pier and the embedded plate 3 of the cross beam is checked to ensure the strength and stiffness of the embedded plate 1 of the pier, the embedded plate 3 of the cross beam and the bolt connection, and the energy dissipation design of the energy dissipation section steel 2 is carried out through overall elastoplastic analysis.
[0056] Embodiment 2, a bridge, including an assembled pier and a cross beam energy dissipation connection structure. The bridge can include a beam bridge, an arch bridge, a steel frame bridge, a suspension bridge, and a combined system bridge (cable-stayed bridge), etc.
[0057] The specific embodiments described above further elaborate on the purpose, technical solutions, and beneficial effects of the present utility model. It should be understood that the above description is only the specific embodiments of the present utility model and is not used to limit the protection scope of the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An assembled pier and crossbeam energy-dissipating connection structure, characterized in that, It includes a pier embedded plate, a tie beam embedded plate and at least one energy dissipation component. The pier embedded plate and the tie beam embedded plate are respectively connected to the pier and the tie beam, and the two ends of the energy dissipation component are respectively detachably connected to the pier embedded plate and the tie beam embedded plate.
2. The energy dissipation connection structure of the prefabricated pier and the tie beam according to claim 1, characterized in that, The pier embedded plate is vertically arranged on the pier, and the main pier reinforcement bars are lap-welded to the pier embedded plate.
3. The energy dissipation connection structure between the prefabricated pier and the cross beam according to claim 2, characterized in that, Several through holes are arranged on the pier embedded plate, and the through holes are used for the pier stirrups to pass through.
4. The prefabricated pier and tie beam energy dissipation connection structure according to claim 2, characterized in that, One end of the pier embedded plate away from the main pier reinforcement bars extends out of the pier and is connected to the energy dissipation component by bolts.
5. The energy dissipation connection structure between the prefabricated pier and the cross beam according to claim 1, wherein, The tie beam embedded plate is vertically connected to the end of the tie beam, and the main tie beam reinforcement bars are lap-welded to the tie beam embedded plate.
6. The energy dissipation connection structure between the prefabricated bridge pier and the cross beam according to claim 5, characterized in that, Several through holes are formed on the tie beam embedded plate, and the through holes are used for the tie beam stirrups to pass through.
7. The energy-dissipating connection structure between the prefabricated pier and the cross beam according to claim 5, characterized in that The energy dissipation component is integrally in the shape of a rectangular plate, and several kidney-shaped holes are respectively arranged at the two ends of the rectangular plate. Bolt connection holes are respectively formed on the pier embedded plate and the tie beam embedded plate, and corresponding connecting bolts pass through the bolt connection holes and the kidney-shaped holes to connect the pier embedded plate and the tie beam embedded plate to the two ends of the energy dissipation component respectively.
8. The energy dissipation connection structure of the prefabricated pier and the cross beam according to any one of claims 1 to 7, characterized in that Several energy dissipation holes are formed in the middle of the energy dissipation component.
9. The prefabricated pier and crossbeam energy dissipation connection structure according to claim 8, wherein, The energy dissipation holes adopt horizontally arranged strip-shaped through holes, and several of the strip-shaped through holes are parallel to each other.
10. A bridge, characterized in that, It includes the assembled pier and tie beam energy dissipation connection structure according to any one of claims 1 to 9.