CN213772908U - Replaceable plastic hinge for bridge pier - Google Patents
Replaceable plastic hinge for bridge pier Download PDFInfo
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- CN213772908U CN213772908U CN202022748525.7U CN202022748525U CN213772908U CN 213772908 U CN213772908 U CN 213772908U CN 202022748525 U CN202022748525 U CN 202022748525U CN 213772908 U CN213772908 U CN 213772908U
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Abstract
The utility model discloses a replaceable plastic hinge for a pier, which comprises a bearing platform, wherein the pier is supported above the bearing platform, a metal top plate is arranged in the middle of the pier, the metal top plate is fixed with the pier through an anchoring screw rod, a top metal gasket is connected below the metal top plate, a top bearing plate is connected below the top metal gasket, a steel column is vertically connected in the middle of the top bearing plate, and the bottom end of the steel column is in a spherical crown shape; the middle part of the bridge pier is also provided with a metal bottom plate, the metal bottom plate is fixed with the bridge pier through an anchoring screw, a bottom metal gasket is connected above the metal bottom plate, a bottom bearing plate is connected above the bottom metal gasket, the middle part of the bottom bearing plate is provided with a bending groove, and the bottom of the steel column is matched with the bending groove; replaceable energy-consuming reinforcing steel bars penetrate between the top bearing plate and the bottom bearing plate, damage and damage of the pier under strong earthquake are effectively reduced, and earthquake damage control design of the pier and quick recovery of using functions after earthquake are achieved.
Description
Technical Field
The utility model relates to a pier technical field especially relates to a can replace plastics hinge for pier.
Background
The bridge is an important component of traffic engineering and plays a very important role in national economy. The bridge pier is an earthquake vulnerable component of bridge engineering, and the bridge can collapse due to the damage of the bridge pier under strong earthquake. In recent years, the importance of implementing a collapse resistant design of a pier through a ductility-based seismic design method has been recognized, and thus, the deformation and energy consumption capabilities of a ductile reinforced concrete pier are considered in the seismic design. According to the ductile seismic design theory, although collapse damage of the pier can be avoided, the severe damage of the plastic hinge area of the pier can be generally caused.
Along with the development of social economy, the bridge is gradually transformed from collapse avoidance to damage avoidance, the pier designed based on earthquake damage control can avoid economic loss after a strong earthquake, and the traffic capacity after the earthquake is easily and quickly recovered.
Therefore, a replaceable plastic hinge for a pier is needed, which can effectively reduce the damage and damage of the pier under strong earthquake, and realize the earthquake damage control design of the pier and the quick recovery of the using function after the earthquake.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can replace plastics hinge for pier to solve above-mentioned current pier and receive the vulnerable damage of earthquake influence and the unable quick prosthetic problem.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a replaceable plastic hinge for a pier, which comprises a bearing platform, wherein the pier is supported above the bearing platform, a metal top plate is arranged in the middle of the pier, the metal top plate is fixed with the pier through an anchoring screw rod, a top metal gasket is connected below the metal top plate, a top bearing plate is connected below the top metal gasket, a steel column is vertically connected in the middle of the top bearing plate, and the bottom end of the steel column is in a spherical crown shape;
the middle part of the bridge pier is also provided with a metal bottom plate, the metal bottom plate is fixed with the bridge pier through an anchoring screw, a bottom metal gasket is connected above the metal bottom plate, a bottom bearing plate is connected above the bottom metal gasket, the middle part of the bottom bearing plate is provided with a bending groove, and the bottom of the steel column is matched with the bending groove;
replaceable energy-consuming steel bars penetrate through the space between the top bearing plate and the bottom bearing plate, and two ends of the replaceable energy-consuming steel bars are fixed through nuts.
Preferably, the top metal gasket has a cross section smaller than the cross section of the metal top plate and the cross section of the top load bearing plate.
Preferably, the cross-section of the bottom metal gasket is smaller than the cross-section of the metal bottom plate and the cross-section of the bottom load-bearing plate.
Preferably, a sleeve is sleeved on a part of the replaceable energy dissipation steel bar between the top bearing plate and the bottom bearing plate.
Preferably, the inner diameter of the sleeve is 3-5mm larger than the diameter of the replaceable energy consuming steel bar.
Preferably, the metal top plate, the top metal gasket, the top bearing plate, the metal bottom plate, the bottom metal gasket, the bottom bearing plate, the steel column, the replaceable energy-consuming steel, and the sleeve are all made of stainless steel.
The utility model discloses following beneficial technological effect has been gained for prior art:
the utility model provides a pair of a can replace plasticity hinge for pier, bottom bearing plate are equipped with the crooked recess of concave top to the top, support the dead weight that the upper portion steel column transmitted, and crooked recess allows the steel column to rotate simultaneously, nevertheless does not take place the side direction translation, makes the pier take place to sway the reaction. The bending groove simultaneously plays a role in limiting the horizontal relative displacement of the steel column and the upper structure. The bending strength and the rigidity of the pier are adjusted by replacing the number of the energy consumption steel bars. The steel sleeve of the outer sleeve is used for preventing the compression buckling of the replaceable energy consumption reinforcing steel bars. The energy dissipation reinforcing steel bars are weak links of the whole structure, yield occurs under an earthquake and earthquake energy is consumed, and the energy dissipation reinforcing steel bars damaged after the earthquake can be replaced quickly, so that the design purposes that the earthquake damage of the pier under the strong earthquake is controllable, and the use function can be recovered quickly after the earthquake are achieved. The replaceable energy consumption reinforcing steel bars are made of stainless steel materials, certain pretensioning force exists in the replaceable energy consumption reinforcing steel bars, the self-resetting capability of the pier after the earthquake can be guaranteed, and the pier after the earthquake can be quickly repaired conveniently. The metal top plate, the top metal gasket, the top bearing plate, the replaceable energy consumption steel bar, the steel column, the bottom metal gasket, the metal bottom plate, the bottom bearing plate, the steel sleeve and the like are all made of stainless steel materials. The structure has good durability.
Compared with the traditional bridge pier, the utility model has the advantages of four are outstanding. Firstly, the earthquake damage of the bridge pier is greatly reduced through the swing reaction of the replaceable plastic hinge under the strong earthquake. Secondly, the damage of the replaceable plastic hinge under the strong earthquake is concentrated on the external replaceable energy-consuming steel bars, and the replaceable energy-consuming steel bars are easy to replace after the earthquake, so that the design purposes that the earthquake damage of the pier under the strong earthquake is controllable and the use function can be quickly recovered after the earthquake are conveniently realized. Thirdly, the bending strength and the rigidity of the bridge pier are adjusted by replacing the number of the energy dissipation reinforcing steel bars, and the seismic energy is uniformly distributed to the bridge piers with different heights in the same bridge, so that the seismic design of the bridge is more reasonable. Fourthly, the external steel material capable of replacing the plastic hinge is basically made of stainless steel materials, and the structural durability is good.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view illustrating an alternative plastic hinge installation for a pier according to the present invention;
fig. 2 is a schematic view of an alternative plastic hinge structure for a pier according to the present invention;
fig. 3 is a schematic structural view of a replaceable energy-consuming steel bar portion in a replaceable plastic hinge for a pier provided by the present invention;
in the figure: the steel column structure comprises a metal top plate 1, a metal top gasket 2, a top bearing plate 3, a replaceable steel bar 4, a nut 5, a steel column 6, a bottom metal gasket 7, a metal bottom plate 8, an anchoring screw 9, a bottom bearing plate 10, a bending groove 11, a sleeve 12, a bearing platform 13 and a pier 14.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a can replace plastics hinge for pier to solve above-mentioned current pier and receive the vulnerable damage of earthquake influence and the unable quick prosthetic problem.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
Example 1:
the embodiment provides a replaceable plastic hinge for a pier, as shown in fig. 1-3, the replaceable plastic hinge comprises a bearing platform 13, a pier 14 is supported above the bearing platform 13, a metal top plate 1 is arranged in the middle of the pier 14, the metal top plate 1 is fixed with the pier 14 through an anchoring screw 9, a top metal gasket 2 is connected below the metal top plate 1, a top bearing plate 3 is connected below the top metal gasket 2, a steel column 6 is vertically connected in the middle of the top bearing plate 3, and the bottom end of the steel column 6 is in the shape of a spherical crown; a metal base plate 8 is further arranged in the middle of the pier 14, the metal base plate 8 is fixed with the pier 14 through an anchoring screw 9, a bottom metal gasket 7 is connected above the metal base plate 8, a bottom bearing plate 10 is connected above the bottom metal gasket 7, a bent groove 11 is formed in the middle of the bottom bearing plate 10, and the bottom of the steel column 6 is matched with the bent groove 11; replaceable energy-consuming steel bars 4 penetrate between the top bearing plate 3 and the bottom bearing plate 10, and two ends of the replaceable energy-consuming steel bars 4 are fixed through nuts 5.
Specifically, the top metal gasket 2 has a smaller cross section than the cross section of the metal top plate 1 and the cross section of the top load-bearing plate 3.
Further, the cross section of the bottom metal gasket 7 is smaller than the cross section of the metal bottom plate 8 and the cross section of the bottom load bearing plate 10.
Further, the sleeve 12 is sleeved on the part of the replaceable energy dissipation steel bar 4 between the top bearing plate 3 and the bottom bearing plate 10.
Further, the inner diameter of the sleeve 12 is 3-5mm larger than the diameter of the replaceable energy consuming steel bar 4.
Further, the metal top plate 1, the top metal gasket 2, the top bearing plate 3, the metal bottom plate 8, the bottom metal gasket 7, the bottom bearing plate 10, the steel column 6, the replaceable energy consumption steel 4 and the sleeve 12 are all made of stainless steel.
The utility model provides a pair of a can replace plastics hinge for pier, bottom bearing plate 10 are equipped with the crooked recess 11 of concave top, support the dead weight that upper portion steel column 6 transmitted, and crooked recess 11 allows steel column 6 to rotate simultaneously, nevertheless does not take place the lateral translation, makes pier 14 take place to sway the reaction. The curved recesses 11 also serve to limit the horizontal relative displacement of the steel columns 6 and superstructure. The bending strength and the rigidity of the pier 14 are adjusted by replacing the number of the energy consumption reinforcing steel bars 4. The outer sleeve 12 serves to prevent compression buckling of the replaceable energy dissipating steel 4. The energy dissipation reinforcing steel bars are weak links of the whole structure, yield occurs under an earthquake and earthquake energy is consumed, and the energy dissipation reinforcing steel bars damaged after the earthquake can be replaced quickly, so that the design purposes that the earthquake damage of the pier under the strong earthquake is controllable, and the use function can be recovered quickly after the earthquake are achieved. The replaceable energy consumption steel bars 4 are made of stainless steel materials, certain pretensioning force exists in the replaceable energy consumption steel bars, the self-resetting capability of the pier 14 after the earthquake can be guaranteed, and the pier 14 after the earthquake can be quickly repaired conveniently. The metal top plate 1, the top metal gasket 2, the top bearing plate 3, the replaceable energy consumption steel bar 4, the steel column 6, the bottom metal gasket 7, the metal bottom plate 8, the bottom bearing plate 10, the sleeve 12 and the like are all made of stainless steel materials. The structure has good durability.
Compared with the traditional bridge pier, the utility model has the advantages of four are outstanding. Firstly, the earthquake damage of the bridge pier is greatly reduced through the swing reaction of the replaceable plastic hinge under the strong earthquake. Secondly, the damage of the replaceable plastic hinge under the strong earthquake is concentrated on the external replaceable energy-consuming steel bars, and the replaceable energy-consuming steel bars are easy to replace after the earthquake, so that the design purposes that the earthquake damage of the pier under the strong earthquake is controllable and the use function can be quickly recovered after the earthquake are conveniently realized. Thirdly, the bending strength and the rigidity of the bridge pier are adjusted by replacing the number of the energy dissipation reinforcing steel bars, and the seismic energy is uniformly distributed to the bridge piers with different heights in the same bridge, so that the seismic design of the bridge is more reasonable. Fourthly, the external steel material capable of replacing the plastic hinge is basically made of stainless steel materials, and the structural durability is good.
The utility model discloses the principle and the implementation mode of the utility model are explained by applying the concrete examples, and the explanation of the above examples is only used for helping to understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present description should not be construed as a limitation of the present invention.
Claims (6)
1. The utility model provides a can replace plastics hinge for pier, includes the cushion cap, the top bearing of cushion cap has pier, its characterized in that: a metal top plate is arranged in the middle of the bridge pier and fixed with the bridge pier through an anchoring screw, a top metal gasket is connected below the metal top plate, a top bearing plate is connected below the top metal gasket, a steel column is vertically connected in the middle of the top bearing plate, and the bottom end of the steel column is in a spherical crown shape;
the middle part of the bridge pier is also provided with a metal bottom plate, the metal bottom plate is fixed with the bridge pier through an anchoring screw, a bottom metal gasket is connected above the metal bottom plate, a bottom bearing plate is connected above the bottom metal gasket, the middle part of the bottom bearing plate is provided with a bending groove, and the bottom of the steel column is matched with the bending groove;
replaceable energy-consuming steel bars penetrate through the space between the top bearing plate and the bottom bearing plate, and two ends of the replaceable energy-consuming steel bars are fixed through nuts.
2. The replaceable plastic hinge for a pier according to claim 1, wherein: the top metal gasket has a cross-section smaller than the cross-section of the metal top plate and the cross-section of the top load-bearing plate.
3. The replaceable plastic hinge for a pier according to claim 1, wherein: the cross section of the bottom metal gasket is smaller than that of the metal bottom plate and that of the bottom bearing plate.
4. The replaceable plastic hinge for a pier according to claim 1, wherein: the part of the replaceable energy-consuming steel bar, which is positioned between the top bearing plate and the bottom bearing plate, is sleeved with a sleeve.
5. The replaceable plastic hinge for a pier according to claim 4, wherein: the inner diameter of the sleeve is 3-5mm larger than the diameter of the replaceable energy consumption reinforcing steel bar.
6. The replaceable plastic hinge for a pier according to claim 5, wherein: the metal top plate, the top metal gasket, the top bearing plate, the metal bottom plate, the bottom metal gasket, the bottom bearing plate, the steel column, the replaceable energy-consuming steel and the sleeve are all made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748525.7U CN213772908U (en) | 2020-11-24 | 2020-11-24 | Replaceable plastic hinge for bridge pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022748525.7U CN213772908U (en) | 2020-11-24 | 2020-11-24 | Replaceable plastic hinge for bridge pier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213772908U true CN213772908U (en) | 2021-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022748525.7U Active CN213772908U (en) | 2020-11-24 | 2020-11-24 | Replaceable plastic hinge for bridge pier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213772908U (en) |
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2020
- 2020-11-24 CN CN202022748525.7U patent/CN213772908U/en active Active
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