CN207362673U - One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers - Google Patents

One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers Download PDF

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Publication number
CN207362673U
CN207362673U CN201721427409.7U CN201721427409U CN207362673U CN 207362673 U CN207362673 U CN 207362673U CN 201721427409 U CN201721427409 U CN 201721427409U CN 207362673 U CN207362673 U CN 207362673U
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China
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limb
pier
column
pair
thin
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CN201721427409.7U
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文望青
王德志
柏华军
凌玉芳
武兵
陶志列
寇延春
邓世海
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China Railway Siyuan Survey and Design Group Co Ltd
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China Railway Siyuan Survey and Design Group Co Ltd
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Abstract

The utility model provides one kind without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, including:Pier, first pair of limb abutment pier and second pair of limb abutment pier in girder, single limb;First pair of limb abutment pier and second pair of limb abutment pier include upper pier shaft and lower pier shaft, upper pier shaft and the rigid connection of lower pier shaft, upper pier shaft includes the first limb column and the second limb column, and the first limb column and the second limb column are affixed with girder, and binder between limb is provided among the first limb column and the second limb column;The height of first limb column of first pair of limb abutment pier is more than the height of the second limb column of first pair of limb abutment pier;Pier and girder are affixed in single limb.The middle pier of traditional scheme is changed to single limb Thin-Wall Piers by no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers provided by the utility model by twin legged thin wall pier, so both added the overall thrust stiffness joined entirely, thoroughly solves the risk that earthquake territory falls beam, the thrust stiffness of pier do not increase again in, and in can saving pier material utilization amount, reduce cost.

Description

One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers
Technical field
Highway, railroad bridge technical field of structures are the utility model is related to, it is thin without bearing list limb more particularly, to one kind Wall pier continuous rigid frame bridge.
Background technology
No bearing Continuous Rigid-Frame Bridge is that new development in recent years is got up a kind of bridge type, with traditional continuous beam (firm structure) abutment pier Movable bearing support is set to compare, abutment pier uses the form of pier consolidation.To better conform to the longitudinal extension of temperature load girder deformation, Abutment pier uses the less double branch Thin-Wall Piers of thrust stiffness, and girder is only consolidated with a wherein thin-walled column.By to domestic foreign minister The research of bridge is closed, the main feature of no bearing continuous rigid frame has:(1) bearing is not set, avoids bearing damage, it is cost-effective, after Phase maintenance cost is low, the line outage for avoiding replacing time from bringing;(2) good seismic performance, horizontal force can be shared equally during earthquake Onto each bridge pier, and continuous bridge then needs to set braking pier, or uses dedicated shock-proof bearing;(3) Dun Liang directly consolidates phase Even, lines are continuously bright and clear, total tune, and landscape effect is good.
Continuous rigid frame is a kind of common bridge structure form, and to strengthen the span ability of the bridge type, wherein pier is using double limbs Thin-Wall Piers, the affixed form of pier beam;Abutment pier stretches to adapt to the temperature of beam length scope, is arranged to longitudinally-moving bearing more.Work as bridge pier When higher, especially there is excessive beam pier relative displacement under action of horizontal seismic in earthquake territory, the abutment pier of longitudinally-moving, increase Structure falls beam risk.
Conventional treatment method is exactly to increase the thrust stiffness of bridge pier by pier thickness in increase, is so set again in continuous rigid frame Put twin legged thin wall pier and reduce thrust stiffness, the design concept for increasing bending stiffness is disagreed, and middle pier material utilization amount is more, cost It is of a relatively high.
Utility model content
In order to overcome the above-mentioned problems in the prior art at least in part, the utility model provides one kind without bearing list Limb Continuous Rigid-Frame Bridge with Thin-Wall Piers.
The utility model provides one kind without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, including:Pier, first in girder, single limb Double limb abutment piers and second pair of limb abutment pier;Wherein, first pair of limb abutment pier and second pair of limb abutment pier include upper pier shaft With lower pier shaft, the upper pier shaft and the lower pier shaft rigid connection, the upper pier shaft includes the first limb column and the second limb column, described First limb column and the second limb column are affixed with the girder, are provided among the first limb column and the second limb column between limb and are Beam;The height of first limb column of first pair of limb abutment pier is more than the height of the second limb column of first pair of limb abutment pier;It is described Pier and the girder are affixed in single limb.
Wherein, when span is less than 25m, the girder is plate girder of reinforced concrete structure;When span is more than 25m, institute It is conventional PC Box Girder Structure to state girder;When span is more than 48m, the girder is And of Varying Depth prestressed concrete Box-beam structure.
Wherein, the cross sectional shape of the lower pier shaft is circular or square.
Wherein, the cross sectional shape of pier is circular or rectangle in single limb.
Wherein, the bottom of the lower pier shaft is provided with basis and cushion cap;Wherein, the basis instrument is in the following engineering of earth's surface In the ground layer that geology is adapted to;The cushion cap is connected integral on the basis with the basic top;Under described Pier shaft is arranged on the cushion cap, is rigidly connected with the cushion cap.
Wherein, cross sectional shape is provided with the lower pier shaft as rectangle or the through hole of polygon.
Wherein, cross sectional shape is provided with the first limb column and/or the second limb column as rectangle or polygon Through hole.
Wherein, the Line stiffness of the girder be more than the first limb column, five times of Line stiffness of the second limb column.
To sum up, the utility model provides a kind of without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, and the of the first pair of limb abutment pier One limb column, the second limb column of the first pair of limb abutment pier, the first limb column of the second pair of limb abutment pier, the second pair of limb abutment pier the second limb column with And pier is affixed with girder in single limb, the height of the first limb column of first pair of limb abutment pier is more than the second limb column of first pair of limb abutment pier Height, be provided with binder between limb among the first limb column of the first pair of limb abutment pier and the second limb column of first pair of limb abutment pier, second Binder between limb is provided among second limb column of the first limb column of double limb abutment piers and second pair of limb abutment pier.It is provided by the utility model Without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, bearing not being set, avoids bearing damage, cost-effective, later maintenance expense is low, avoids The relevant issues that replacing time is brought;Dun Liang, which is directly consolidated, to be connected, and lines are continuously bright and clear, total tune, and landscape effect is good;At the same time The middle pier of traditional scheme is changed to single limb Thin-Wall Piers by twin legged thin wall pier, so both added the overall thrust stiffness joined entirely, it is thorough Bottom solves the risk that earthquake territory falls beam, but in not increasing pier thrust stiffness, and in can saving pier material utilization amount, reduction makes Valency.
Brief description of the drawings
Fig. 1 is the structural representation according to a kind of no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers of the utility model embodiment Figure;
Fig. 2 is one kind according to the utility model embodiment without second pair of limb side in bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers The structure diagram of binder between limb is provided among first limb column of pier, the second limb column;
Fig. 3 is one kind according to the utility model embodiment without first pair of limb side in bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers The upper pier shaft of pier and lower pier shaft are provided with the structure diagram of through hole.
Embodiment
It is new to this practicality below in conjunction with attached drawing to make the purpose of this utility model, technical solution and advantage clearer Technical solution in type embodiment is explicitly described, it is clear that described embodiment is that the utility model part is implemented Example, instead of all the embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making wound All other embodiments obtained under the premise of the property made work, shall fall within the protection scope of the present invention.
The present embodiment provides one kind without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, with reference to figure 1 and Fig. 2, including:Girder, list Pier, first pair of limb abutment pier and second pair of limb abutment pier in limb;Wherein,
First pair of limb abutment pier and second pair of limb abutment pier include upper pier shaft and lower pier shaft, the upper pier shaft and institute Lower pier shaft rigid connection is stated, the upper pier shaft includes the first limb column and the second limb column, the first limb column and the second limb column It is affixed with the girder, it is provided with binder between limb among the first limb column and the second limb column;
The height of first limb column of first pair of limb abutment pier is more than the height of the second limb column of first pair of limb abutment pier;
Pier and the girder are affixed in the list limb.
Wherein, girder includes continuous rigid frame 4b, beam body 3 and another continuous rigid frame 4a.
Wherein, 5, first pairs of limb abutment piers of pier and second pair of limb abutment pier are reinforced concrete structure in single limb.
Specifically, the upper end of the first limb column 1a of first pair of limb abutment pier and continuous rigid frame 4b are affixed, the first pair of limb abutment pier The upper end and one end of beam body 3 of second limb column 1b is affixed;The height of first limb column 1a of first pair of limb abutment pier is more than first pair of limb The height of second limb column 1b of abutment pier;
The upper end of first limb column 2a of second pair of limb abutment pier and the other end of beam body 3 are affixed;The second of second pair of limb abutment pier The upper end of limb column 2b and another continuous rigid frame 4a are affixed;
Pier 5 and beam body 3 are affixed in single limb.
Wherein, it is provided with first among the first limb column 1a of the first pair of limb abutment pier and the second limb column 1b of first pair of limb abutment pier Binder between limb, improves the stability of bridge pier.
Wherein, it is provided with second among the first limb column 2a of the second pair of limb abutment pier and the second limb column 2b of second pair of limb abutment pier Binder 2c between limb, improves the stability of bridge pier.
Present embodiments provide it is a kind of without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, the first limb column of first pair of limb abutment pier, Second limb column of first pair of limb abutment pier, the first limb column of the second pair of limb abutment pier, the second limb column of the second pair of limb abutment pier and single limb Middle pier is affixed with girder, and the height of the first limb column of first pair of limb abutment pier is more than the height of the second limb column of first pair of limb abutment pier Binder between limb, second pair of limb are provided among degree, the first limb column of the first pair of limb abutment pier and the second limb column of first pair of limb abutment pier Binder between limb is provided among second limb column of the first limb column of abutment pier and second pair of limb abutment pier.No bearing provided in this embodiment Single limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, does not set bearing, avoids bearing damage, cost-effective, and later maintenance expense is low, avoids replacing branch The relevant issues that seat is brought;Dun Liang, which is directly consolidated, to be connected, and lines are continuously bright and clear, total tune, and landscape effect is good;At the same time by tradition The middle pier of scheme is changed to single limb Thin-Wall Piers by twin legged thin wall pier, so both adds the overall thrust stiffness joined entirely, thoroughly solves Earthquake territory falls the risk of beam, but in not increasing pier thrust stiffness, and in can saving pier material utilization amount, reduce cost.
In another embodiment of the utility model, on the basis of above-described embodiment, when span is less than 25m, institute It is plate girder of reinforced concrete structure to state girder;
When span is more than 25m, the girder is conventional PC Box Girder Structure;
When span is more than 48m, the girder is And of Varying Depth PC Box Girder Structure.
In the further embodiment of the utility model, on the basis of above-described embodiment, the section shape of the lower pier shaft Shape is circular or square.
Specifically, the cross sectional shape of the lower pier shaft of first pair of limb abutment pier is circular or square;The second pair of limb abutment pier The cross sectional shape of lower pier shaft is circular or square.
Preferably, the cross sectional shape of the lower pier shaft of first pair of limb abutment pier is circle;The lower pier shaft of second pair of limb abutment pier is cut Face shape is circle.
Present embodiments provide a kind of without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, section of the lower pier shaft of first pair of limb abutment pier Face shape is circle, and the cross sectional shape of the lower pier shaft of second pair of limb abutment pier is circle, not only increases the impact resistance of lower pier shaft, Also reduce the resistance to current.
In another embodiment of the utility model, on the basis of above-described embodiment, the section of pier in the list limb Shape is circular or rectangle.
Preferably, the cross sectional shape of pier 5 is rectangle in single limb.
In the utility model another embodiment, on the basis of above-described embodiment, the bottom installation of the lower pier shaft There are basis and cushion cap;Wherein,
The basis instrument is in the ground layer that the following engineering geology of earth's surface is adapted to;
The cushion cap is connected integral on the basis with the basic top;
The lower pier shaft is arranged on the cushion cap, is rigidly connected with the cushion cap.
Specifically, the bottom of the lower pier shaft of first pair of limb abutment pier is provided with basis and cushion cap;The lower pier of second pair of limb abutment pier The bottom of body is provided with basis and cushion cap.
In the utility model another embodiment, on the basis of above-described embodiment, with reference to figure 3, on the lower pier shaft Cross sectional shape is provided with as rectangle or the through hole of polygon.
Specifically, cross sectional shape is provided with the lower pier shaft of first pair of limb abutment pier as rectangle or the through hole of polygon;The Cross sectional shape is provided with the lower pier shaft of two pairs of limb abutment piers as rectangle or the through hole of polygon.
Preferably, the through hole that cross sectional shape is polygon is provided with the lower pier shaft of first pair of limb abutment pier;Second pair of limb side The through hole that cross sectional shape is polygon is provided with the lower pier shaft of pier.
Present embodiments provide a kind of without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, being provided with cross sectional shape on lower pier shaft is The through hole of rectangle or polygon, saves the concrete amount of lower pier shaft.
In the utility model another embodiment, on the basis of above-described embodiment, the first limb column and/or described Cross sectional shape is provided with second limb column as rectangle or the through hole of polygon.
Specifically, it is provided with the first limb column 1a of the first pair of limb abutment pier and/or the second limb column 1b of first pair of limb abutment pier Cross sectional shape is rectangle or the through hole of polygon;
Cross sectional shape is provided with first limb column 2a of the second pair of limb abutment pier and/or the second limb column 2b of second pair of limb abutment pier For rectangle or the through hole of polygon.
Preferably, it is provided with the first limb column 1a of the first pair of limb abutment pier and/or the second limb column 1b of first pair of limb abutment pier Cross sectional shape is the through hole of polygon;
Cross sectional shape is provided with first limb column 2a of the second pair of limb abutment pier and/or the second limb column 2b of second pair of limb abutment pier For the through hole of polygon.
Present embodiments provide it is a kind of without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, on the first limb column and/or the second limb column Cross sectional shape is provided with as rectangle or the through hole of polygon, saves the concrete amount of pier shaft.
In the utility model another embodiment, on the basis of above-described embodiment, the Line stiffness of the girder is more than Five times of Line stiffness of the first limb column, the second limb column.
Specifically, to ensure that the first limb column and the second limb column have less thrust stiffness, adapt to girder longitudinal temperature and stretch Compression deformation, and the beam-ends only smaller Bending Moment Distribution of girder give the first limb column and the second limb column, need to meet the following conditions:
The Line stiffness of girder is more than five times of the Line stiffness of the first limb column;
The Line stiffness of girder is more than five times of the Line stiffness of the second limb column.
Preferably, E1A1/L1> 5*E2A2/L2;Wherein,
E1For the elasticity modulus of girder;A1For the cross-sectional area of girder;L1For the length of girder;
E2For the first limb column or the elasticity modulus of the second limb column;A2For the first limb column or the cross-sectional area of the second limb column;L2For The length of first limb column or the second limb column.
Although being described in conjunction with the accompanying the embodiment of the utility model, those skilled in the art can not depart from Various modifications and variations are made in the case of the spirit and scope of the utility model, such modifications and variations are each fallen within by appended Within claim limited range.

Claims (8)

1. one kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers, it is characterised in that including:Pier, first pair of limb side in girder, single limb Pier and second pair of limb abutment pier;Wherein,
First pair of limb abutment pier and second pair of limb abutment pier include upper pier shaft and lower pier shaft, the upper pier shaft and it is described under Pier shaft is rigidly connected, and the upper pier shaft includes the first limb column and the second limb column, the first limb column and the second limb column with The girder is affixed, and binder between limb is provided among the first limb column and the second limb column;
The height of first limb column of first pair of limb abutment pier is more than the height of the second limb column of first pair of limb abutment pier;
Pier and the girder are affixed in the list limb.
2. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that when span is less than 25m When, the girder is plate girder of reinforced concrete structure;
When span is more than 25m, the girder is conventional PC Box Girder Structure;
When span is more than 48m, the girder is And of Varying Depth PC Box Girder Structure.
3. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that the lower pier shaft is cut Face shape is circular or square.
4. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that pier in the list limb Cross sectional shape is circular or rectangle.
5. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that the bottom of the lower pier shaft Portion is provided with basis and cushion cap;Wherein,
The basis instrument is in the ground layer that the following engineering geology of earth's surface is adapted to;
The cushion cap is connected integral on the basis with the basic top;
The lower pier shaft is arranged on the cushion cap, is rigidly connected with the cushion cap.
6. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that set on the lower pier shaft Cross sectional shape is equipped with as rectangle or the through hole of polygon.
7. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that the first limb column And/or cross sectional shape is provided with the second limb column as rectangle or the through hole of polygon.
8. no bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers according to claim 1, it is characterised in that the line of the girder is firm Spend the Line stiffness more than the first limb column, the second limb column five times.
CN201721427409.7U 2017-10-31 2017-10-31 One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers Active CN207362673U (en)

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CN201721427409.7U CN207362673U (en) 2017-10-31 2017-10-31 One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers

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Application Number Priority Date Filing Date Title
CN201721427409.7U CN207362673U (en) 2017-10-31 2017-10-31 One kind is without bearing list limb Continuous Rigid-Frame Bridge with Thin-Wall Piers

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CN207362673U true CN207362673U (en) 2018-05-15

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