CN210946442U - Energy-consuming and shock-absorbing arch springing device - Google Patents
Energy-consuming and shock-absorbing arch springing device Download PDFInfo
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- CN210946442U CN210946442U CN201920327960.7U CN201920327960U CN210946442U CN 210946442 U CN210946442 U CN 210946442U CN 201920327960 U CN201920327960 U CN 201920327960U CN 210946442 U CN210946442 U CN 210946442U
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 159
- 239000010959 steel Substances 0.000 claims abstract description 159
- 238000005265 energy consumption Methods 0.000 claims abstract description 44
- 230000035939 shock Effects 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims description 13
- 239000011248 coating agent Substances 0.000 claims description 4
- 238000000576 coating method Methods 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 abstract description 16
- 230000007123 defense Effects 0.000 abstract description 4
- 238000007689 inspection Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 4
- 230000006378 damage Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011378 shotcrete Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model discloses an energy consumption shock attenuation hunch foot device relates to the bridge field, and the purpose is in order to promote the stability of hunch bridge hunch foot, makes things convenient for the inspection and the maintenance of hunch bridge hunch foot, promotes the anti-seismic performance and the life of hunch foot, for realizing the utility model discloses the technical scheme that the purpose and adopt is such, including encircleing the pontic, hunch foot and abutment. And bridge abutments are arranged at two ends of the arch bridge body, and an arch foot is connected between each bridge abutment and the arch bridge body. The arch springing comprises a buckling restrained brace, a plurality of built-in energy dissipation steel plates and an outer side energy dissipation steel plate frame. The plurality of built-in energy-consumption steel plates are arranged around the buckling restrained brace at intervals, and the peripheries of the plurality of built-in energy-consumption steel plates are nested with outer-side energy-consumption steel plate frames. When an earthquake occurs, the buckling restrained brace and the built-in energy dissipation steel plates firstly resist earthquake force to form a first earthquake-proof defense line. When the earthquake energy is larger, the energy is offset again by the outer energy-consuming steel plate frame to form a second earthquake-proof defense line.
Description
Technical Field
The utility model relates to a bridge field, concretely relates to energy consumption shock attenuation hunch foot device.
Background
Earthquake is a great destructive and sudden natural disaster, once earthquake occurs, it brings a devastating disaster to earthquake areas, so that domestic and foreign people begin to install elements with the function of controlling energy consumption at some important positions, so as to consume earthquake energy and reduce the damage of earthquake force to structures.
The bridge is used as a transportation junction for rescue, and is particularly important for protecting the bridge. The arch bridge occupies a place in the bridge building, has beautiful appearance and shape, is convenient for life and traffic and is distributed all over the places. However, the connection between the arch springing and the arch abutment of the arch bridge is fixed connection, which is not beneficial to the earthquake resistance of the structure, in order to make the structure safer in the earthquake, a damping energy-consuming component is added in the structure, and the energy transmitted to the structure from the outside is consumed and shared by the damping energy-consuming component, so that the purposes of improving the dynamic characteristics of the structure and protecting the structural component are achieved.
The buckling restrained brace is a better damping and energy dissipating component which is proposed by students and applied to a practical structure in recent years. Under the action of small and medium earthquakes, the buckling restrained energy-consuming brace can provide lateral stiffness like a common brace component, and under the action of large earthquakes, the component can achieve the purpose of consuming earthquake energy by preventing the buckling of the inner core through the outer coating component, and the buckling restrained energy-consuming brace is a component with good energy consumption. The bearing capacity is strong, and deformability is high, has solved the unstable problem of ordinary steel shotcrete pressurized, can guarantee its ductility component requirement in the antidetonation design again, and makes the structure safe and reliable, improves safe deposit for the major structure.
Except that the buckling restrained brace has good energy dissipation and shock absorption effects, the energy dissipation steel plate can dissipate a large amount of energy in the elastic-plastic deformation process by utilizing the characteristics of low yield point, good ductility and the like, so that the main body structure is protected.
The buckling restrained brace and the energy-consuming steel plate are jointly applied to the arch foot position and serve as the core position of the energy-consuming and shock-absorbing device, the stability of the arch bridge is improved, the anti-seismic reliability of the arch foot is greatly improved, and the device is simple in structure, convenient to install and convenient to implement.
Disclosure of Invention
The utility model aims at providing an use extensively, energy consumption performance is remarkable, the controllable energy consumption shock attenuation hunch foot device of design parameter for promote the stability of arched bridge hunch foot, to the easy inspection of hunch foot position and maintenance, promote the life of hunch foot.
The technical scheme adopted for realizing the purpose of the utility model is that the energy-consuming and shock-absorbing arch springing device comprises an arch bridge body, arch springing and an abutment. And bridge abutments are arranged at two ends of the arch bridge body, and an arch foot is connected between each bridge abutment and the arch bridge body. The arch springing comprises a buckling restrained brace, a plurality of connecting nodes, a plurality of built-in energy dissipation steel plates and an outer side energy dissipation steel plate frame. One connecting node connects one end of the buckling restrained brace with the arch bridge body, and the other connecting node connects the other end of the buckling restrained brace with the bridge abutment. The plurality of built-in energy-consumption steel plates are arranged around the buckling restrained brace at intervals, one end of each built-in energy-consumption steel plate is connected with the arch bridge body, and the other end of each built-in energy-consumption steel plate is connected with the bridge abutment. And the peripheries of the plurality of built-in energy-consuming steel plates are nested with outer energy-consuming steel plate frames, one end of each outer energy-consuming steel plate frame is connected with the arch bridge body, and the other end of each outer energy-consuming steel plate frame is connected with the bridge abutment.
Further, the bottom plate I and the metal frame are arranged at the bottom of the arch ring of the arch bridge body, the bottom plate I is a rectangular steel plate installed on the end face of the bottom of the arch ring, and a reserved steel plate I and a plurality of built-in energy-consuming steel plates are connected to the face, deviating from the arch bridge body, of the bottom plate I. The face of reserving steel sheet I is perpendicular with the face of bottom plate I, there are a plurality of through-holes on the face of reserving steel sheet I. The metal frame is nested on the outer surface of the bottom of the arch ring, and each plate surface of the metal frame is provided with a plurality of through holes.
Furthermore, the buckling restrained brace comprises a steel core and a steel sleeve, wherein the steel core is straight section steel, cross section steel or I-shaped section steel, and the steel sleeve is nested on the steel core. The surface of the steel core is coated with an unbonded coating, and the steel core is not in contact with the inner wall of the steel sleeve. Concrete or mortar is poured between the steel core and the steel sleeve.
Further, the connected node includes elastic connection head and gusset plate, elastic connection head's one end is connected with the bucking restraint support, and the other end is connected with the gusset plate. The face of gusset plate is parallel with the face of reserving steel sheet I, all have a plurality of through-holes on the gusset plate at bucking restraint support both ends. And a plurality of bolts penetrate through the through holes of the reserved steel plates I and the node plate through holes close to the arch bridge body, and each bolt is screwed in a nut.
Further, the built-in energy dissipation steel plate is made of steel with a low yield point, the two side edges of the built-in energy dissipation steel plate along the length direction of the buckling restrained brace are arc-shaped, and the arcs of the two side edges of the built-in energy dissipation steel plate are sunken towards the center of the built-in energy dissipation steel plate.
Furthermore, the upper end of the outer energy-consuming steel plate frame is nested on the outer surface of the bottom of the arch ring, and a plurality of through holes are formed in each plate surface at the upper end of the outer energy-consuming steel plate frame. The outer side energy consumption steel plate frame is connected with angle steel on each plate surface close to the bridge abutment, a plurality of side plates of the angle steel are connected with the outer side of each plate surface of the outer side energy consumption steel plate frame, and a through hole is formed in the other side plate.
Further, a bottom plate II is installed on the face, facing the arch springing, of the abutment, and a plurality of through holes are formed in the bottom plate II. The face of the bottom plate II, which faces away from the abutment, is connected with a reserved steel plate II and a plurality of built-in energy-consumption steel plates, and the reserved steel plate II is provided with a plurality of through holes.
Furthermore, a plurality of bolts penetrate through the through holes of the metal frame and the through holes at the upper end of the outer energy consumption steel plate frame, and each bolt is screwed in a nut.
Further, a plurality of bolts penetrate through the node plate through hole close to the bridge abutment and the through hole of the reserved steel plate II, and each bolt is screwed into a nut.
Furthermore, a plurality of bolts penetrate through the through holes in the angle steel side plates and the through holes in the bottom plate II, and each bolt is screwed into a nut.
The technical effect of the utility model is undoubted, adds power consumption damping device in traditional hunch foot, when making the structure suffer big earthquake, avoids the bucking of kernel unit when the pressurized, can effectually keep out the impact force, and the buffering earthquake is to the resistance of structure, and the destruction form of effective control hunch foot has improved the stability of structure, has promoted the life of hunch foot, makes the structure safe and reliable more to effectual destruction that resists the earthquake. The arch springing device is convenient to assemble and disassemble, high in construction efficiency and capable of well realizing quick repair of arch springing.
Drawings
FIG. 1 is a view of the arch springing connection;
FIG. 2 is a sectional view taken along line A-A;
FIG. 3 is a sectional view taken along line B-B;
FIG. 4 is a perspective view of the internal structure of the arch springing;
FIG. 5 is a front view of a built-in energy-dissipating steel plate;
FIG. 6 is a connection diagram of the outer energy-consuming steel plate frame and the reserved steel plate II.
In the figure: the arch bridge comprises an arch bridge body 1, a bottom plate I101, a metal frame 102, a reserved steel plate I103, an arch springing 2, a buckling restrained brace 201, a steel core 2011, a steel sleeve 2012, a connecting node 202, an elastic connector 2021, a node plate 2022, a built-in energy dissipation steel plate 203, an outer energy dissipation steel plate frame 204, angle steel 205, an abutment 3, a bottom plate II 301 and a reserved steel plate II 302.
Detailed Description
The present invention will be further described with reference to the following examples, but it should not be construed that the scope of the present invention is limited to the following examples. Various substitutions and modifications can be made without departing from the technical spirit of the invention and according to the common technical knowledge and conventional means in the field, and all shall be included in the scope of the invention.
Example 1:
the embodiment discloses an energy-consuming and shock-absorbing arch springing device which comprises an arch bridge body 1, arch springing 2 and an abutment 3. Referring to fig. 1, two ends of the arch bridge body 1 are provided with bridge abutments 3, and an arch foot 2 is connected between each bridge abutment 3 and the arch bridge body 1. Referring to fig. 3, the arch springing 2 includes a buckling restrained brace 201, a plurality of connecting nodes 202, a plurality of built-in energy dissipation steel plates 203 and an outer energy dissipation steel plate frame 204. One of the connection nodes 202 connects one end of the buckling-restrained brace 201 to the arch bridge body 1, and the other of the connection nodes 202 connects the other end of the buckling-restrained brace 201 to the abutment 3. Referring to fig. 2 or 5, a plurality of internal energy consumption steel plates 203 are arranged at intervals around the buckling-restrained brace 201, the internal energy consumption steel plates 203 are made of steel with a low yield point, edges of the internal energy consumption steel plates 203 on two sides in the length direction of the buckling-restrained brace 201 are arc-shaped, and arcs of the edges of the internal energy consumption steel plates 203 on two sides are both sunken towards the center of the internal energy consumption steel plates 203. One end of each of the built-in energy dissipation steel plates 203 is connected with the arch bridge body 1, and the other end is connected with the abutment 3. The peripheries of the plurality of built-in energy-consumption steel plates 203 are nested with outer energy-consumption steel plate frames 204, one end of each outer energy-consumption steel plate frame 204 is connected with the arch bridge body 1, and the other end of each outer energy-consumption steel plate frame 204 is connected with the bridge abutment 3.
The arch bridge is characterized in that the bottom of an arch ring of the arch bridge body 1 is provided with a bottom plate I101 and a metal frame 102, the bottom plate I101 is a rectangular steel plate installed on the end face of the bottom of the arch ring, and the surface of the bottom plate I101 departing from the arch bridge body 1 is connected with a reserved steel plate I103 and a plurality of built-in energy-consumption steel plates 203. The face of reserving steel sheet I103 is perpendicular with the face of bottom plate I101, there are a plurality of through-holes on the face of reserving steel sheet I103. The metal frame 102 is nested on the outer surface of the bottom of the arch ring, and each plate surface of the metal frame 102 is provided with a plurality of through holes.
Referring to fig. 2 or 4, the buckling-restrained brace 201 comprises a steel core 2011 and a steel sleeve 2012, wherein the steel core 2011 is an i-shaped steel, and the steel sleeve 2012 is nested on the steel core 2011. The surface of the steel core 2011 is coated with an unbonded coating, and the steel core 2011 is not in contact with the inner wall of the steel sleeve 2012. Concrete or mortar is poured between the steel core 2011 and the steel sleeve 2012.
Referring to fig. 3, the connection node 202 includes an elastic connector 2021 and a node board 2022, where one end of the elastic connector 2021 is connected to the buckling-restrained brace 201, and the other end is connected to the node board 2022. The face of gusset plate 2022 is parallel with the face of reserving steel sheet I103, all have a plurality of through-holes on the gusset plate 2022 at bucking restraint support 201 both ends. And a plurality of bolts penetrate through the through holes of the reserved steel plates I103 and the through holes of the node plates 2022 close to the arch bridge body 1, and each bolt is screwed in a nut.
Referring to fig. 4, the upper end of the outer energy-dissipating steel plate frame 204 is nested on the outer surface of the bottom of the arch ring, each plate surface of the upper end of the outer energy-dissipating steel plate frame 204 is provided with a plurality of through holes, a plurality of bolts pass through the through holes of the metal frame 102 and the through holes of the upper end of the outer energy-dissipating steel plate frame 204, and each bolt is screwed into a nut. Referring to fig. 1 or 3, angle steels 205 are connected to each plate surface of the outer energy-dissipating steel plate frame 204 close to the bridge abutment 3, one side plate of the plurality of angle steels 205 is connected to the outer side of each plate surface of the outer energy-dissipating steel plate frame 204, and a through hole is formed in the other side plate.
Referring to fig. 6, a bottom plate ii 301 is installed on the plate surface of the abutment 3 facing the arch springing 2, a plurality of through holes are formed in the bottom plate ii 301, a plurality of bolts penetrate through the through holes in the side plates of the angle steel 205 and the through holes in the bottom plate ii 301, and each bolt is screwed in a nut. Referring to fig. 3, a reserved steel plate ii 302 and a plurality of built-in energy-consumption steel plates 203 are connected to the surface of the bottom plate ii 301, which faces away from the abutment 3, and the reserved steel plate ii 302 is provided with a plurality of through holes. And a plurality of bolts penetrate through the through hole of the node plate 2022 close to the abutment 3 and the through hole of the reserved steel plate II 302, and each bolt is screwed in a nut.
When an earthquake occurs, the buckling restrained brace 201 and the built-in energy consumption steel plates 203 resist earthquake force firstly, and if the earthquake is very small, the buckling restrained brace 201 and the built-in energy consumption steel plates 203 can counteract the energy to form a first earthquake-proof defense line. If the earthquake is large, the energy can be offset by the outer energy consumption steel plate frame 204, and a second earthquake-proof defense line is formed.
Claims (10)
1. An energy-consuming and shock-absorbing arch springing device is characterized in that: comprises an arch bridge body (1), arch feet (2) and a bridge abutment (3); two ends of the arch bridge body (1) are respectively provided with a bridge abutment (3), and an arch foot (2) is connected between each bridge abutment (3) and the arch bridge body (1); the arch springing (2) comprises a buckling restrained brace (201), a plurality of connecting nodes (202), a plurality of built-in energy-consumption steel plates (203) and an outer energy-consumption steel plate frame (204); one connecting node (202) connects one end of the buckling restrained brace (201) with the arch bridge body (1), and the other connecting node (202) connects the other end of the buckling restrained brace (201) with the bridge abutment (3); the plurality of built-in energy-consumption steel plates (203) are arranged around the buckling restrained brace (201) at intervals, one end of each built-in energy-consumption steel plate (203) is connected with the arch bridge body (1), and the other end of each built-in energy-consumption steel plate is connected with the bridge abutment (3); the peripheries of the plurality of built-in energy-consumption steel plates (203) are nested with outer energy-consumption steel plate frames (204), one end of each outer energy-consumption steel plate frame (204) is connected with the arch bridge body (1), and the other end of each outer energy-consumption steel plate frame is connected with the bridge abutment (3).
2. The energy dissipating and shock absorbing arch springing device of claim 1, wherein: a bottom plate I (101) and a metal frame (102) are arranged at the bottom of an arch ring of the arch bridge body (1), the bottom plate I (101) is a rectangular steel plate installed on the end face of the bottom of the arch ring, and a reserved steel plate I (103) and a plurality of built-in energy-consuming steel plates (203) are connected to the surface, deviating from the arch bridge body (1), of the bottom plate I (101); the plate surface of the reserved steel plate I (103) is perpendicular to the plate surface of the bottom plate I (101), and a plurality of through holes are formed in the plate surface of the reserved steel plate I (103); the metal frame (102) is nested on the outer surface of the bottom of the arch ring, and a plurality of through holes are formed in each plate surface of the metal frame (102).
3. The energy dissipating and shock absorbing arch springing device of claim 1, wherein: the buckling restrained brace (201) comprises a steel core (2011) and a steel sleeve (2012), wherein the steel core (2011) is a straight-line steel, a cross-shaped steel or an I-shaped steel, and the steel sleeve (2012) is nested on the steel core (2011); the surface of the steel core (2011) is coated with an unbonded coating, and the steel core (2011) is not in contact with the inner wall of the steel sleeve (2012); concrete or mortar is poured between the steel core (2011) and the steel sleeve (2012).
4. The energy dissipating and shock absorbing arch springing device of claim 2, wherein: the connection node (202) comprises an elastic connector (2021) and a node plate (2022), one end of the elastic connector (2021) is connected with the buckling constraint support (201), and the other end of the elastic connector is connected with the node plate (2022); the plate surface of the gusset plate (2022) is parallel to the plate surface of the reserved steel plate I (103), and a plurality of through holes are formed in the gusset plates (2022) at the two ends of the buckling restrained brace (201); and a plurality of bolts penetrate through the through hole of the reserved steel plate I (103) and the through hole of the node plate (2022) close to the arch bridge body (1), and each bolt is screwed in a nut.
5. The energy dissipating and shock absorbing arch springing device of claim 1, wherein: the built-in energy consumption steel plate (203) is made of steel with a low yield point, the edges of the two sides of the built-in energy consumption steel plate (203) along the length direction of the buckling restrained brace (201) are arc-shaped, and the arcs of the edges of the two sides of the built-in energy consumption steel plate (203) are sunken towards the center of the built-in energy consumption steel plate (203).
6. The energy dissipating and shock absorbing arch springing device of claim 1, wherein: the upper end of the outer energy-consuming steel plate frame (204) is nested on the outer surface of the bottom of the arch ring, and each plate surface at the upper end of the outer energy-consuming steel plate frame (204) is provided with a plurality of through holes; the energy-consuming steel plate frame is characterized in that angle steel (205) is connected to each plate surface of the outer energy-consuming steel plate frame (204) close to the bridge abutment (3), a plurality of side plates of the angle steel (205) are connected with the outer side of each plate surface of the outer energy-consuming steel plate frame (204), and a through hole is formed in the other side plate.
7. The energy dissipating and shock absorbing arch springing device of claim 1, wherein: a bottom plate II (301) is mounted on the surface, facing the arch springing (2), of the bridge abutment (3), and a plurality of through holes are formed in the bottom plate II (301); the slab face of the bottom plate II (301) back to the abutment (3) is connected with a reserved steel plate II (302) and a plurality of built-in energy-consumption steel plates (203), and the reserved steel plate II (302) is provided with a plurality of through holes.
8. The energy dissipating and shock absorbing arch springing device of claim 2, wherein: and a plurality of bolts penetrate through the through holes of the metal frame (102) and the through holes at the upper end of the outer energy-consuming steel plate frame (204), and each bolt is screwed in a nut.
9. An energy dissipating and shock absorbing arch springing device as claimed in claim 2 or 4, wherein: and a plurality of bolts penetrate through the through hole of the node plate (2022) close to the abutment (3) and the through hole of the reserved steel plate II (302), and each bolt is screwed in a nut.
10. An energy dissipating and shock absorbing arch springing device as claimed in claim 6, wherein: and a plurality of bolts penetrate through the through holes in the side plates of the angle steel (205) and the through holes in the bottom plate II (301), and each bolt is screwed into a nut.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019203086426 | 2019-03-12 | ||
| CN201920308642 | 2019-03-12 |
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| Publication Number | Publication Date |
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| CN210946442U true CN210946442U (en) | 2020-07-07 |
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| CN201920327960.7U Expired - Fee Related CN210946442U (en) | 2019-03-12 | 2019-03-15 | Energy-consuming and shock-absorbing arch springing device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438870A (en) * | 2022-03-07 | 2022-05-06 | 重庆交通大学 | Deck type concrete filled steel tube arch bridge with main arch ring provided with damping device |
-
2019
- 2019-03-15 CN CN201920327960.7U patent/CN210946442U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114438870A (en) * | 2022-03-07 | 2022-05-06 | 重庆交通大学 | Deck type concrete filled steel tube arch bridge with main arch ring provided with damping device |
| CN114438870B (en) * | 2022-03-07 | 2024-06-07 | 重庆交通大学 | Upper bearing type steel pipe concrete arch bridge with damping device on main arch ring |
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