CN109706833A - A kind of damping rigid frame bridge bridge pier containing buckling restrained brace - Google Patents
A kind of damping rigid frame bridge bridge pier containing buckling restrained brace Download PDFInfo
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- CN109706833A CN109706833A CN201811335363.5A CN201811335363A CN109706833A CN 109706833 A CN109706833 A CN 109706833A CN 201811335363 A CN201811335363 A CN 201811335363A CN 109706833 A CN109706833 A CN 109706833A
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Abstract
The invention discloses a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, the conventional flat including jacket supporting leg, for connecting adjacent support legs connect stay tube and buckling restrained brace；Diagonal bracing pipe is substituted with buckling restrained brace, that is, is placed within the scope of the trapezoid area of adjacent support legs and adjacent horizontal connection stay tube composition；Above structure takes full advantage of the characteristics of buckling restrained brace intensity is high, rigidity is big and good Hysteresis Behavior, has structure compared with the better anti-seismic performance of conventional catheters body panel under earthquake by the setting of buckling restrained brace.
Description
Technical field
The present invention relates to bridges, in particular to improve the novel of anti-seismic performance of beam bridge with buckling restrained brace
Bridge.
Background technique
Seismic survey shows that continuous rigid frame bridge is a kind of good bridge type of anti-seismic performance, due to pier consolidation, in big earthquake centre
The serious beam that falls will not generally occur to destroy.Continuous rigid frame bridge with twin-legged high pier is due to there is biggish vertical bridge to bending resistance and direction across bridge
Torsional rigidity not only can guarantee the safety and stability in work progress, and but also be able to satisfy the force request of large span bridge, thus by
It is widely used.
People still have deficiency to the understanding of earthquake genesis mechanism at this stage, and more level design philosophys based on probability theory are still
It is incomplete, it is still not accurate enough to the analysis of bridge seismic response.Traditional earthquake resistant construction does not have self-contr ol and self-control
Ability, in rarely occurred earthquake, structure is likely to generate serious destruction, or even collapses.
In recent years, people start to consider by improving bridge structure, to achieve the purpose that antidetonation shock attenuation.Twin legged thin wall pier connects
Continuous rigid frame bridge is generally realized by improving material property or increasing the size of counter structure in terms of anti-seismic performance promotion.
In the reinforcing engineering of twin legged thin wall pier, generally use three kinds of schemes in lower part: outer patch steel plate reinforcement, outer patch armored concrete add
Gu and outer patch is carbon cloth reinforced.Above scheme does not make improvement, the anti-seismic performance of Lai Tisheng bridge for structural system.
Buckling restrained brace (buckling-restrained braces, BRB) is a kind of novel dissipative cell, is subordinate to
In the scope of metal damper.It makes use of the good performance of metal material, tension and compression Shi Junneng reach surrender without
Buckling occurs, and resistance to compression is closer to tensile strength, Hysteresis Behavior is excellent.
Summary of the invention
The object of the present invention is to provide the damping rigid frame bridge bridge piers containing buckling restrained brace
Scheme one: including girder and twin legged thin wall pier and several buckling restrained braces and pre-buried steel member I.
The twin legged thin wall pier includes the A limb and B limb perpendicular to horizontal plane.The A limb and B limb upper end are both connected to girder
Lower section.
When pouring twin legged thin wall pier, pre-buried several pre-buried steel member I inside A limb and B limb.Each is pre-buried
The part that steel member I exposes concrete surface is junction steel plate I.
Each described junction steel plate I on A limb is located at the surface towards B limb.Each described junction steel plate on B limb
I is located at the surface towards A limb.
The junction steel plate I on junction steel plate I and B limb on A limb is dislocatedly distributed.
Several buckling restrained braces are between A limb and B limb.The both ends of one buckling restrained brace are connected to A limb
On junction steel plate I and B limb on junction steel plate I.
Scheme two: including girder, twin legged thin wall pier and several buckling restrained braces, pre-buried steel member I, horizontal gird
With several pre-buried steel component II I.
The twin legged thin wall pier includes the A limb and B limb perpendicular to horizontal plane.The A limb and B limb upper end are both connected to girder
Lower section.
When pouring twin legged thin wall pier, pre-buried several pre-buried steel member I inside A limb and B limb.Each is pre-buried
The part that steel member I exposes concrete surface is junction steel plate I.
Each described junction steel plate I on A limb is located at the surface towards B limb.Each described junction steel plate on B limb
I is located at the surface towards A limb.
Each piece of junction steel plate I on A limb has one piece of junction steel plate I on B limb to be corresponding to it, and the two is in same
Horizontal plane.
Several horizontal girds are between A limb and B limb.When pouring the horizontal gird, inside horizontal gird
Pre-buried several steel member III.The part that each steel member III exposes concrete surface is junction steel plate III.
The upper and lower surfaces of the horizontal gird have junction steel plate III.
Several buckling restrained braces are between A limb and B limb.One end of one buckling restrained brace is connected to A limb
Or junction steel plate I, the other end on B limb are connected to the junction steel plate III on horizontal gird.
Scheme three: including girder and twin legged thin wall pier and several buckling restrained braces and pre-buried steel member I.
The twin legged thin wall pier includes the A limb and B limb perpendicular to horizontal plane.The A limb and B limb upper end are both connected to girder
Lower section.
When pouring twin legged thin wall pier, pre-buried several pre-buried steel member I inside A limb and B limb.Each is pre-buried
The part that steel member I exposes concrete surface is junction steel plate I.
Each described junction steel plate I on A limb is located at the surface towards B limb.Each described junction steel plate on B limb
I is located at the surface towards A limb.
Each piece of junction steel plate I on A limb has one piece of junction steel plate I on B limb to be corresponding to it, and the two is in same
Horizontal plane.
Several buckling restrained braces are between A limb and B limb.One end of one buckling restrained brace is connected on A limb
Junction steel plate I, the other end are connected to the junction steel plate I on B limb.
Further, the both ends of the buckling restrained brace are connecting pin.The connecting pin is that the both ends of core material either connect
Connect the end plate at buckling restrained brace both ends.
It further, further include several connecting plates.By the connecting plate, so that the both ends of buckling restrained brace are connected to
It connects on steel plate I, connection steel II plate or junction steel plate III.
Further, the connecting plate is by welding, to connect with other components.
Further, connecting plate is to be connect by high-strength bolt with other components.
Further, the pre-buried steel member I of the top is denoted as pre-buried steel component II.The pre-buried steel component II is embedded in simultaneously
Inside girder and twin legged thin wall pier.
Further, each pre-buried position of the pre-buried steel member I, simultaneously pre-buried two pre-buried steel member I.One
A junction steel plate I is only connect with a buckling restrained brace.
Further, each pre-buried position of the pre-buried steel component II I, pre-buried two pre-buried steel members simultaneously
III.One junction steel plate III is only connect with a buckling restrained brace.
Further, the buckling restrained brace is arranged according to three kinds of modes once:
A: buckling restrained brace is arranged along bridge pier overall height.
B: buckling restrained brace is arranged along pier coping portion, bottom and intermediate position.
C: buckling restrained brace is arranged along pier coping portion and bottom.
It is worth noting that relative deformation under severe earthquake action, occurs between double-limb pier for rigid frame bridge, setting double-limb pier it
Between buckling restrained brace surrender energy consumption, take full advantage of that buckling restrained brace intensity is high, rigidity is big and good hysteresis
The characteristics of energy, thereby reduce the seismic energy for being input to double-limb pier.
Antidetonation bridge structure new system disclosed in this invention, can effectively improve the shock resistance of bridge structure, reach
The purpose of design that big earthquake centre damage is relatively light, meets emergency operation or can repair.I.e. the present invention can be used for newly building bridge Aseismic Design or
Existing bridge aseismatic strengthening achievees the purpose that protect bridge main body structure.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of embodiment 1；
Fig. 2 is the structural schematic diagram of embodiment 2；
Fig. 3 is the structural schematic diagram of embodiment 3；
Fig. 4 is the structural schematic diagram of embodiment 3；
Fig. 5 is the structural schematic diagram of embodiment 9.
Fig. 6 is the structural schematic diagram of embodiment 10.
Fig. 7 is the structural schematic diagram of embodiment 11.
Fig. 8 is the partial enlarged view of the part L1 in Fig. 1.
Fig. 9 is the partial enlarged view of the part L2 in Fig. 1.
Figure 10 is the partial enlarged view of the part L3 in Fig. 2.
In figure: girder (1), twin legged thin wall pier (2), A limb (201), B limb (202), buckling restrained brace (3), connecting pin
(301), pre-buried steel member I (41), junction steel plate I (411), pre-buried steel component II (42), connection steel II plate (421), pre-buried steel
Component II I (43), junction steel plate III (431), junction steel plate (401), horizontal gird (5), connecting plate (6), high-strength bolt (7).
Specific embodiment
Below with reference to embodiment, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention only
It is limited to following embodiments.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and used
With means, various replacements and change are made, should all include within the scope of the present invention.
Embodiment 1:
Referring to Fig. 1, a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including girder 1 and double limbs
Thin-Wall Piers 2 and several buckling restrained braces 3 and pre-buried steel member I41.
The twin legged thin wall pier 2 includes the A limb 201 and B limb 202 perpendicular to horizontal plane.On the A limb 201 and B limb 202
End is both connected to the lower section of girder 1.
When pouring twin legged thin wall pier 2, pre-buried several pre-buried steel member I41 inside A limb 201 and B limb 202.
It is junction steel plate I411 that each pre-buried steel member I41, which exposes the part of concrete surface,.
Each described junction steel plate I411 on A limb 201 is located at the surface towards B limb 202.Each on B limb 201
The junction steel plate I411 is located at the surface towards A limb 202.
The junction steel plate I411 on junction steel plate I411 and B limb 201 on A limb 201 is dislocatedly distributed.It is i.e. as shown in Figure 1, every
On one horizontal plane, only one junction steel plate I411.For each junction steel plate I411 on A limb 201, above and below
Adjacent junction steel plate I411 is on B limb 201.Similarly, for each junction steel plate I411 on B limb 201, upper,
Under adjacent junction steel plate I411 on A limb 201.
Several buckling restrained braces 3 are between A limb 201 and B limb 202.The both ends of one buckling restrained brace 3 connect respectively
Meet the junction steel plate I411 on junction steel plate I411 and the B limb 202 on A limb 201.I.e. buckling restrained brace 3 be arranged to Fig. 1 that
The single bevel broken line type of sample.
Embodiment 2:
Referring to fig. 2, a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including girder 1, double limbs
Thin-Wall Piers 2 and several buckling restrained braces 3, pre-buried steel member I41, horizontal gird 5 and several pre-buried steel component II I43.
The twin legged thin wall pier 2 includes the A limb 201 and B limb 202 perpendicular to horizontal plane.On the A limb 201 and B limb 202
End is both connected to the lower section of girder 1.
When pouring twin legged thin wall pier 2, pre-buried several pre-buried steel member I41 inside A limb 201 and B limb 202.
It is junction steel plate I411 that each pre-buried steel member I41, which exposes the part of concrete surface,.
Each described junction steel plate I411 on A limb 201 is located at the surface towards B limb 202.Each on B limb 201
The junction steel plate I411 is located at the surface towards A limb 202.
Each piece of junction steel plate I411 on A limb 201 has one piece of junction steel plate I411 on B limb 201 to be corresponding to it, and two
Person is in the same horizontal plane.
Several horizontal girds 5 are between A limb 201 and B limb 202.It is horizontal when pouring the horizontal gird 5
The pre-buried several steel member III43 in crossbeam 5 inside.The part that each steel member III43 exposes concrete surface is connection steel
Plate III431.
The upper and lower surfaces of the horizontal gird 5 have junction steel plate III431.I.e. as shown in Fig. 2, two adjacent levels
Between crossbeam 5, there is a pair of of junction steel plate I411.This pair of junction steel plate I411 is located at A limb 201 and B limb 202, and locates
In the same horizontal plane.Between the horizontal gird 5 and girder 1 of the top, also there is a pair of of junction steel plate I411.This pair of connection
Steel plate I411 is located at A limb 201 and B limb 202, and is in the same horizontal plane.
Several buckling restrained braces 3 are between A limb 201 and B limb 202.One end of one buckling restrained brace 3 connects respectively
Meet the junction steel plate I411 on A limb 201 or B limb 202, the other end is connected to junction steel plate III431 on horizontal gird 5.Such as
Shown in Fig. 2, a horizontal gird 5 is connect with four buckling restrained braces 3, these buckling restrained braces 3 are arranged to X-type.That is water
The upper surface of flat crossbeam 5 is connect with one end of two buckling restrained braces 3, the other ends of the two buckling restrained braces 3 to
After opposite direction inclination, it is connect respectively with A limb 201 and B limb 202.Similarly, the lower surface of horizontal gird 5 and two bucklings
Constraint support 3 one end connection, after the other end of the two buckling restrained braces 3 tilts in the opposite direction, respectively with A limb
201 and B limb 202 connects.
Embodiment 3:
Referring to Fig. 3 or Fig. 4, a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including girder 1
With twin legged thin wall pier 2 and several buckling restrained braces 3 and pre-buried steel member I41.
The twin legged thin wall pier 2 includes the A limb 201 and B limb 202 perpendicular to horizontal plane.On the A limb 201 and B limb 202
End is both connected to the lower section of girder 1.
When pouring twin legged thin wall pier 2, pre-buried several pre-buried steel member I41 inside A limb 201 and B limb 202.
It is junction steel plate I411 that each pre-buried steel member I41, which exposes the part of concrete surface,.
Each described junction steel plate I411 on A limb 201 is located at the surface towards B limb 202.Each on B limb 201
The junction steel plate I411 is located at the surface towards A limb 202.
Each piece of junction steel plate I411 on A limb 201 has one piece of junction steel plate I411 on B limb 201 to be corresponding to it, and two
Person is in the same horizontal plane.I.e. as shown in figure 3 or 4, junction steel plate I411 is in appearance, every a pair of junction steel plate I411 difference
Positioned at A limb 201 and B limb 202, and it is in the same horizontal plane.
Several buckling restrained braces 3 are between A limb 201 and B limb 202.One end of one buckling restrained brace 3 is connected to
Junction steel plate I411, the other end on A limb 201 are connected to the junction steel plate I411 on B limb 202.I.e. such as Fig. 3 or Fig. 4, A limb 201
There are several buckling restrained braces 3 being parallel to each other between B limb 202.
Embodiment 4:
The primary structure of the present embodiment is the same as embodiment 1,2 or 3.Further, the both ends of the buckling restrained brace 3 are connection
End 301.
Embodiment 5:
Referring to Fig. 8~10, the primary structure of the present embodiment is the same as embodiment 1,2 or 3.Further, the connecting pin 301 is to connect
Connect the end plate at the both ends of core material.It further include several connecting plates 6.
By the connecting plate 6, so that the both ends of buckling restrained brace 3 are connected to junction steel plate I411, connection steel II plate
On 421 or junction steel plate III431.
The connecting plate 6 is by welding, to connect with other components.
Alternatively, connecting plate 6 is to be connect by high-strength bolt 7 with other components.
Alternatively, connecting plate 6 is by anchor bolt (hinged) and junction steel plate I411, connect steel II plate 421 and junction steel plate
III431 connection.
Embodiment 6:
The primary structure of the present embodiment is the same as embodiment 1 or 2.Further, each pre-buried pre-buried steel member I41
Position, simultaneously pre-buried two pre-buried steel member I41.One junction steel plate I411 is only connect with a buckling restrained brace 3.
Embodiment 7:
The primary structure of the present embodiment is the same as embodiment 2.Further, each pre-buried pre-buried steel component II I43
Position, simultaneously pre-buried two pre-buried steel component IIs I43.One junction steel plate III431 only connects with a buckling restrained brace 3
It connects.
Embodiment 8:
Referring to Fig. 5, the primary structure of the present embodiment is the same as embodiment 1,2 or 3.Further, the height of twin legged thin wall pier 2 is lower
When (be lower than 30 meters when), buckling restrained brace 3 arranges along bridge pier overall height.I.e. between A limb 201 and B limb 202, have from top to bottom
Buckling restrained brace 3 is distributed.Such as according to the scheme of embodiment 1, these buckling restrained braces 3 are several end to end, are in fold-line-shaped
It is distributed between A limb 201 and B limb 202.(being less than 40m)
Embodiment 10:
Referring to Fig. 6, the primary structure of the present embodiment is the same as embodiment 1,2 or 3.Further, the height of twin legged thin wall pier 2 is higher
When (be greater than 50m), buckling restrained brace 3 arranges along pier coping portion, bottom and intermediate position.
Embodiment 11:
Referring to Fig. 7, the primary structure of the present embodiment is the same as embodiment 1,2 or 3.Further, the height of twin legged thin wall pier 2 is moderate
When (30-50m), buckling restrained brace 3 arranges along pier coping portion and bottom.
Claims (9)
1. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including the girder (1) and twin legged thin wall
Pier (2) and several buckling restrained braces (3) and pre-buried steel member I (41)；
The twin legged thin wall pier (2) includes the A limb (201) and B limb (202) perpendicular to horizontal plane；The A limb (201) and B limb
(202) upper end is both connected to the lower section of girder (1)；
When pouring twin legged thin wall pier (2), the internal pre-buried several pre-buried steel member I of A limb (201) and B limb (202)
(41).It is (411) junction steel plate I that each pre-buried steel member I (41), which exposes the part of concrete surface,；
Each described junction steel plate I (411) on A limb (201) is located at the surface towards B limb (202)；It is every on B limb (201)
One junction steel plate I (411) is located at the surface towards A limb (202)；
The junction steel plate I (411) on junction steel plate I (411) and B limb (201) on A limb (201) is dislocatedly distributed；
Several buckling restrained braces (3) are located between A limb (201) and B limb (202)；The both ends of one buckling restrained brace (3) point
The junction steel plate I (411) not being connected on the junction steel plate I (411) and B limb (202) on A limb (201).
2. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including girder (1), twin legged thin wall pier
(2) and several buckling restrained braces (3), pre-buried steel member I (41), horizontal gird (5) and several pre-buried steel component II I
(43)；
The twin legged thin wall pier (2) includes the A limb (201) and B limb (202) perpendicular to horizontal plane；The A limb (201) and B limb
(202) upper end is both connected to the lower section of girder (1)；
When pouring twin legged thin wall pier (2), the internal pre-buried several pre-buried steel member I of A limb (201) and B limb (202)
(41)；It is (411) junction steel plate I that each pre-buried steel member I (41), which exposes the part of concrete surface,；
Each described junction steel plate I (411) on A limb (201) is located at the surface towards B limb (202)；It is every on B limb (201)
One junction steel plate I (411) is located at the surface towards A limb (202)；
Each piece of junction steel plate I (411) on A limb (201) has one piece of junction steel plate I (411) on B limb (201) right therewith
It answers, the two is in the same horizontal plane；
Several horizontal girds (5) are located between A limb (201) and B limb (202)；When pouring the horizontal gird (5),
The internal pre-buried several steel member III (43) of horizontal gird (5)；The portion of each steel member III (43) exposing concrete surface
Dividing is (431) junction steel plate III；
The upper and lower surfaces of the horizontal gird (5) have junction steel plate III (431)；
Several buckling restrained braces (3) are located between A limb (201) and B limb (202)；One end of one buckling restrained brace (3) point
The junction steel plate I (411), the other end that are not connected on A limb (201) or B limb (202) are connected to the connection on horizontal gird (5)
Steel plate II I (431).
3. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, it is characterised in that: including girder (1) and twin legged thin wall pier
(2) and several buckling restrained braces (3) and pre-buried steel member I (41)；
The twin legged thin wall pier (2) includes the A limb (201) and B limb (202) perpendicular to horizontal plane；The A limb (201) and B limb
(202) upper end is both connected to the lower section of girder (1)；
When pouring twin legged thin wall pier (2), the internal pre-buried several pre-buried steel member I of A limb (201) and B limb (202)
(41)；It is (411) junction steel plate I that each pre-buried steel member I (41), which exposes the part of concrete surface,；
Each described junction steel plate I (411) on A limb (201) is located at the surface towards B limb (202)；It is every on B limb (201)
One junction steel plate I (411) is located at the surface towards A limb (202)；
Each piece of junction steel plate I (411) on A limb (201) has one piece of junction steel plate I (411) on B limb (201) right therewith
It answers, the two is in the same horizontal plane；
Several buckling restrained braces (3) are located between A limb (201) and B limb (202)；One end of one buckling restrained brace (3) connects
Meet the junction steel plate I (411) being connected on B limb (202) in junction steel plate I (411), the other end on A limb (201).
4. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace according to claim 1,2 or 3, it is characterised in that:
The both ends of the buckling restrained brace (3) are connecting pin (301)；The connecting pin (301) is that the both ends of core material either connect
End plate at buckling restrained brace (3) both ends.
5. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace according to claim 1,2 or 3, it is characterised in that:
It further include several connecting plates (6)；By the connecting plate (6), so that the both ends of buckling restrained brace (3) are connected to junction steel plate
On I (411), connection steel II plate (421) or junction steel plate III (431).
6. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace according to claim 5, it is characterised in that:
The connecting plate (6) is by welding, to connect with other components；
Or connecting plate (6) is to be connect by high-strength bolt (7) with other components.
7. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace according to claim 1 or 2, it is characterised in that: most
The pre-buried steel member I (41) of top is denoted as pre-buried steel component II (42)；The pre-buried steel component II (42) is embedded in girder simultaneously
(1) and twin legged thin wall pier (2) is internal.
8. a kind of damping rigid frame bridge bridge pier containing buckling restrained brace according to claim 1 or 2 or 7, it is characterised in that:
One junction steel plate I (411) only connect with a buckling restrained brace (3)；
One junction steel plate III (431) only connect with a buckling restrained brace (3).
9. according to claim 1, a kind of damping rigid frame bridge bridge pier containing buckling restrained brace, feature described in 2 or 3 or 7 exist
In: the buckling restrained brace (3) is arranged according to three kinds of modes once:
A: buckling restrained brace (3) is arranged along bridge pier overall height；
B: buckling restrained brace (3) is arranged along pier coping portion, bottom and intermediate position；
C: buckling restrained brace (3) is arranged along pier coping portion and bottom.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811335363.5A CN109706833A (en) | 2018-11-10 | 2018-11-10 | A kind of damping rigid frame bridge bridge pier containing buckling restrained brace |
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| CN201811335363.5A CN109706833A (en) | 2018-11-10 | 2018-11-10 | A kind of damping rigid frame bridge bridge pier containing buckling restrained brace |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114293460A (en) * | 2022-02-15 | 2022-04-08 | 中南大学 | Railway swinging hollow high pier with damping and energy-consuming devices |
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