CN217781700U - Asymmetric continuous beam-V-shaped rigid frame combined bridge - Google Patents
Asymmetric continuous beam-V-shaped rigid frame combined bridge Download PDFInfo
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- CN217781700U CN217781700U CN202222141802.7U CN202222141802U CN217781700U CN 217781700 U CN217781700 U CN 217781700U CN 202222141802 U CN202222141802 U CN 202222141802U CN 217781700 U CN217781700 U CN 217781700U
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Abstract
The utility model discloses an asymmetric continuous beam-V type rigid frame composite bridge, which relates to the technical field of bridge engineering, and is of a continuous structure with three or more holes, and comprises at least one V type rigid frame part and at least one continuous beam structure, wherein the V type rigid frame part is connected with the continuous beam part through a mid-span closure section, and the system conversion is completed to form the composite bridge; the V-shaped rigid frame part comprises a V-shaped rigid frame main beam, V-shaped piers and a V-shaped rigid frame foundation, the V-shaped piers are arranged at the bottom of the V-shaped rigid frame main beam, the V-shaped rigid frame foundation is arranged at the lower part of the V-shaped piers, the cantilever length of the V-shaped rigid frame main beam is greater than that of the continuous beam main beam, the V-shaped rigid frame main beam and the continuous beam main beam are connected together through the midspan closure section, and the closure section is arranged in the center of the deviated main span. The utility model discloses combined two kinds of structural style of continuous beam bridge and V type rigid frame, provided an asymmetric continuous beam-V type rigid frame composite bridge structural style, both promoted the aesthetic property of structure and guaranteed the stability of structure again.
Description
Technical Field
The utility model relates to a bridge engineering technical field specifically is an asymmetric continuous beam-V type rigid frame composite bridge.
Background
The prestressed concrete continuous beam generally has the structural forms of an equal-height continuous beam, a variable-height continuous beam, a continuous rigid frame and the like, and is light in structure and high in bending rigidity. The prestressed concrete high-degree continuous beam is generally a symmetrical structure with three or more holes, and the span is usually 50-150 meters. The durability problems of bridge span middle downwarping, concrete cracking and the like can be caused by prestress relaxation and concrete shrinkage creep under the action of long-term load, and the continuous shape of the prestress concrete is not novel enough, so that the appearance is more general.
The asymmetric continuous beam-V-shaped rigid frame combined bridge is a bridge with three or more than three holes, wherein one middle pivot is provided with a V-shaped pier to form an inverted triangle rigid structure with the main beam, and the rest middle pivots adopt a continuous beam structure. The structure has the characteristics of a V-shaped rigid frame and a continuous beam bridge, is asymmetric in structure, the midspan closure position can be flexibly arranged according to needs, and the structure is suitable for the situations of being limited by structures or landforms, deviating the midspan closure position from the midspan, or extremely unequal in side span. The crossing capacity of the main beam can be improved by arranging the V-shaped piers, the beam height is reduced, and the route longitudinal slope is optimized. In recent years, a swivel construction process is widely applied to bridge construction, the combined bridge structure is suitable for conventional suspension casting and support cast-in-place, is also suitable for a swivel construction process, can increase the span of a swivel cantilever, improves the capability of crossing barriers, and has great application potential. The bridge type is more elegant, the bearing capacity and the structural stability of the bridge structure are not lost, the full bridge is more economical, and meanwhile, the structural system belongs to an innovative combined system.
Therefore, an asymmetric continuous beam-V-shaped rigid frame combined bridge needs to be researched.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an asymmetric continuous beam-V type rigid frame combination bridge to solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme:
an asymmetric continuous beam-V-shaped rigid frame combined bridge is of a three-hole or more-than-three-hole continuous structure and comprises at least one V-shaped rigid frame part and at least one continuous beam structure, wherein the continuous beam structure comprises a continuous beam main beam and a continuous beam main pier arranged at the bottom of the continuous beam main beam, the V-shaped rigid frame part and the continuous beam part are connected through a mid-span closure section, and system conversion is completed to form the combined bridge; the V-shaped rigid frame part comprises a V-shaped rigid frame main beam, V-shaped piers and a V-shaped rigid frame foundation, the V-shaped piers are arranged at the bottom of the V-shaped rigid frame main beam, the V-shaped rigid frame foundation is arranged at the lower part of the V-shaped piers, the cantilever length of the V-shaped rigid frame main beam is greater than that of the continuous beam main beam, the V-shaped rigid frame main beam and the continuous beam main beam are connected together through the midspan closure section, and the closure section is arranged in the center of the deviated main span.
On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:
in one alternative: one end of the V-shaped rigid frame main beam, which is far away from the end part of the continuous beam main beam, is provided with a continuous beam side span closure section, and one end of the continuous beam main beam, which is far away from the V-shaped rigid frame main beam, is provided with a V-shaped rigid frame side span closure section.
In one alternative: the bottom of the continuous beam main pier is provided with a continuous beam foundation, the bottom of the V-shaped pier is provided with a V-shaped rigid frame foundation, and the continuous beam foundation and the V-shaped rigid frame foundation are both an enlarged foundation, a pile foundation or an open caisson foundation.
In one alternative: the continuous beam main pier is a double-limb flexible thin-wall pier, a hollow pier or a solid pier.
In one alternative: the transverse bridge direction of the V-shaped piers is in a single-limb, double-limb or multi-limb inclined leg mode, and the V-shaped piers and the V-shaped rigid frame main beam and the V-shaped rigid frame foundation and the V-shaped piers are connected through concretion or supports.
In one alternative: the structure of the V-shaped rigid frame main beam adopts a prestressed concrete structure, a steel-concrete composite structure or a UHPC ultrahigh-performance concrete beam.
In one alternative: the V-shaped rigid frame main beam is a height-variable beam or an equal height beam.
In one alternative: the support is a spherical support, a basin-type support or a plate-type support.
In one alternative: and the continuous beam main pier and the V-shaped pier are both provided with swivel spherical hinges, the swivel spherical hinges on the continuous beam main pier are positioned at the top or the bottom of the continuous beam main pier, and the swivel spherical hinges on the V-shaped pier are positioned at the bottom of the V-shaped pier.
Compared with the prior art, the beneficial effects of the utility model are as follows:
compared with the prior art, the utility model the advantage lie in: by arranging the V-shaped piers, the asymmetric structure is realized to avoid important structures, the crossing capacity of the main beam is improved, the beam height is reduced, the common span of a continuous beam bridge is broken through, the span arrangement is more flexible, and the method is suitable for complex terrains; the structure is clear, the stress of the structure is reasonable, the design concept is advanced, and the modeling is novel; the V-shaped rigid frame bridge wire is active, attractive in appearance, dynamic and capable of manufacturing a more obvious landscape effect.
The utility model discloses combined two kinds of structural style of continuous beam bridge and V type rigid frame, the proposition of novelty an asymmetric continuous beam-V type rigid frame built-up bridge structural style has both promoted the aesthetic property of structure and has guaranteed the stability of structure again.
Drawings
Fig. 1 is a schematic view of the overall structure of the composite bridge according to an embodiment of the present invention.
Fig. 2 is a schematic view of two connection modes of the main beam and the main pier of the continuous beam at the position A in fig. 1.
Fig. 3 is a schematic diagram of two connection modes of the V-shaped pier and the V-shaped rigid frame main beam at the position B in fig. 1.
Fig. 4 is a schematic diagram of the consolidation of the V-pier with double limbs and V-rigid frame foundation at C in fig. 1.
Fig. 5 is a schematic diagram of two connection modes of the V-shaped pier with three limbs and the V-shaped rigid frame foundation at the position C in fig. 1.
Fig. 6 is a schematic view of two connection modes of the V-shaped pier with even number of limbs and the V-shaped rigid frame foundation at the position C in fig. 1.
Fig. 7 is a schematic diagram of four connection modes of the V-shaped pier with odd number of limbs and the V-shaped rigid frame foundation at the position C in fig. 1.
Notations for reference numerals: the system comprises a 1-continuous beam side span closure section, a 2-continuous beam main beam, a 3-continuous beam main pier, a 4-continuous beam foundation, a 5-mid-span closure section, a 6-V type rigid frame main beam, a 7-V type pier, an 8-V type rigid frame foundation, a 9-V type rigid frame side span closure section and a 12-support.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments; in the drawings or the description, the same reference numerals are used for similar or identical parts, and the shape, thickness or height of each part may be enlarged or reduced in practical use. The embodiments of the present invention are provided only for illustration and not for limiting the scope of the present invention. Any obvious and obvious modifications or alterations of the present invention can be made without departing from the spirit and scope of the present invention.
In one embodiment, as shown in fig. 1 to 3, an asymmetric continuous beam-V-shaped rigid frame composite bridge is a three-or more-three-hole continuous structure and comprises at least one V-shaped rigid frame section and at least one continuous beam structure, wherein the continuous beam structure comprises a continuous beam main beam 2 and a continuous beam main pier 3 arranged at the bottom of the continuous beam main beam 2, the V-shaped rigid frame section and the continuous beam section are connected through a mid-span closure section 5, and the system conversion is completed to form the composite bridge; the V-shaped rigid frame part comprises a V-shaped rigid frame main beam 6, a V-shaped pier 7 and a V-shaped rigid frame foundation 8, the V-shaped pier 7 is arranged at the bottom of the V-shaped rigid frame main beam 6, the V-shaped rigid frame foundation 8 is arranged at the lower part of the V-shaped pier 7, the cantilever length of the V-shaped rigid frame main beam 6 is greater than that of the continuous beam main beam 2, the V-shaped rigid frame main beam 6 and the continuous beam main beam 2 are connected together through a mid-span closure section 5, and the closure section 5 is arranged in a manner of deviating from the center of the main span;
in this embodiment, since the cantilever length of the V-shaped rigid frame main beam 6 is greater than that of the continuous beam main beam 2 and the mid-span closure section 5 connecting the V-shaped rigid frame main beam 6 and the continuous beam main beam 2 is arranged deviating from the center of the main span, the composite bridge is of an asymmetric structure and is different from a conventional prestressed continuous beam and a conventional continuous rigid frame; the asymmetric continuous beam-V-shaped rigid frame combined bridge inherits the advantages of the continuous beam bridge, and the combination of the V-shaped piers makes the overall structure of the combined bridge more stable, improves the overall rigidity of the combined bridge structure, and reduces midspan downwarping of the prestressed concrete continuous beam bridge under the long-term loading effect; the V-shaped piers 7 are arranged at one part of the continuous beam bridge, so that the structure is asymmetric to avoid important structures, the beam height is reduced by arranging the V-shaped piers 7, the bridge span is increased, the common span of the continuous beam bridge is broken through, the overall compactness and the attractiveness of the structure are increased, the capability of crossing obstacles is improved, and the construction cost is reduced;
the V-shaped rigid frame continuous beam combined bridge is not limited to suspension casting and support cast-in-place, is also suitable for a swivel construction process, can flexibly distribute swivel cantilever span, adopts a V-shaped rigid frame on the side with the larger swivel span, and adopts a continuous beam on the side with the smaller swivel span.
In one embodiment, as shown in fig. 1 to 3, an end of the V-shaped main girder 6, which is far away from the main girder 2 of the continuous girder, is provided with a continuous girder side-span closure section 1, and an end of the main girder 2, which is far away from the V-shaped main girder 6 of the continuous girder, is provided with a V-shaped rigid girder side-span closure section;
the bottom of the continuous beam main pier 3 is provided with a continuous beam foundation 4, the bottom of the V-shaped pier 7 is provided with a V-shaped rigid frame foundation 8, and the continuous beam foundation 4 and the V-shaped rigid frame foundation 8 are both enlarged foundations, pile foundations or open caisson foundations.
In one embodiment, as shown in fig. 1-3, the continuous beam main pier 3 can be a double-limb flexible thin-walled pier, a hollow pier or a solid pier;
in one embodiment, as shown in fig. 1-3, the transverse direction of the V-shaped pier 7 is in the form of single-limb, double-limb or multi-limb inclined leg, the V-shaped pier 7 and the V-shaped rigid frame main beam and the V-shaped rigid frame foundation 8 and the V-shaped pier 7 are connected through a fixing or support 12, and further, when the horizontal force at the bottom of the V-shaped pier 7 is large, the V-shaped pier can be connected with the V-shaped rigid frame foundation 8 through the support; the included angles between the two or more inclined legs of the V-shaped pier 7 and the vertical line can be equal or unequal;
as shown in fig. 5, (a) shows a full consolidation mode of three inclined legs of the V-shaped pier 7 and the V-shaped rigid frame main beam 6, and (b) shows that two outermost legs of the three inclined legs of the V-shaped pier 7 are consolidated, and other supports are connected;
as shown in fig. 6, (a) shows the full consolidation mode of the inclined legs of the even number of limbs of the V-shaped pier 7 and the V-shaped rigid frame main beam 6, and (b) shows the consolidation of the two outermost limbs of the inclined legs of the even number of limbs of the V-shaped pier 7, and the other supports are connected;
as shown in fig. 7, (a) shows the full consolidation mode of the odd-limb inclined legs of the V-shaped pier 7 and the V-shaped rigid frame main beam 6; (b) The figure shows that two outermost limbs of the inclined legs with odd number of limbs of the V-shaped pier 7 are fixedly connected, and other supports are connected; (c) The figure shows that the outermost side and the middle of the inclined leg of the odd limb of the V-shaped pier 7 are fixedly connected, and other full supports are connected; (d) The figure shows that the middle support saddle in the inclined leg with odd number of limbs of the V-shaped pier 7 is connected, and the rest is fully consolidated.
The construction form of the V-shaped pier 7 is as follows: the longitudinal direction is V-shaped, and the transverse direction is an inverted V-shaped or rectangular solid panel wall structure; the supporting points of the V-shaped piers 7 can be increased by adopting a double-limb or multi-limb inclined leg structure;
in one embodiment, as shown in fig. 1 to 3, the structure of the V-shaped main girder 6 is a prestressed concrete structure, a steel-concrete composite structure, or a UHPC ultra high performance concrete girder.
In one embodiment, the V-shaped rigid frame main beams 6 are high or equal height beams, as shown in fig. 1-3.
In one embodiment, as shown in FIGS. 1-3, the support 12 may be a ball-type support, a basin-type support, or a plate-type support. Swivel ball hinges are arranged on the continuous beam main piers 3 and the V-shaped piers 7 to meet the requirement of a swivel construction process, the swivel ball hinges on the continuous beam main piers 3 are located at the top or the bottom of the continuous beam main piers 3, and the swivel ball hinges on the V-shaped piers 7 are located at the bottom of the V-shaped piers 7.
The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.
Claims (9)
1. An asymmetric continuous beam-V-shaped rigid frame combined bridge is of a continuous structure with three or more than three holes and comprises at least one V-shaped rigid frame part and at least one continuous beam structure, and is characterized in that the continuous beam structure comprises a continuous beam main beam and a continuous beam main pier arranged at the bottom of the continuous beam main beam;
the V-shaped rigid frame part and the continuous beam part are connected through a midspan closure section, and the system conversion is completed to form a combined bridge;
the V-shaped rigid frame part comprises a V-shaped rigid frame main beam, a V-shaped pier and a V-shaped rigid frame foundation;
the V-shaped pier is arranged at the bottom of the main beam of the V-shaped rigid frame, and the V-shaped rigid frame foundation is arranged at the lower part of the V-shaped pier;
the cantilever length of the V-shaped rigid frame main beam is greater than that of the continuous beam main beam;
the V-shaped rigid frame main beam and the continuous beam main beam are connected together through the midspan closure section, and the closure section is arranged in a manner of deviating from the center of the main span.
2. The asymmetric continuous beam-V-shaped rigid frame combined bridge as claimed in claim 1, wherein one end of the V-shaped rigid frame main beam, which is far away from the continuous beam main beam, is provided with a continuous beam side span closure section, and one end of the continuous beam main beam, which is far away from the V-shaped rigid frame main beam, is provided with a V-shaped rigid frame side span closure section.
3. The asymmetric continuous beam-V type rigid frame combined bridge as claimed in claim 1, wherein the bottom of the continuous beam main pier is provided with a continuous beam foundation, the bottom of the V type pier is provided with a V type rigid frame foundation, and the continuous beam foundation and the V type rigid frame foundation are enlarged foundations, pile foundations or open caisson foundations.
4. The asymmetric continuous beam-V-shaped rigid frame composite bridge as claimed in claim 1, wherein the continuous beam main pier is a double-limb flexible thin-wall pier, a hollow pier or a solid pier.
5. The asymmetric continuous beam-V-shaped rigid frame combined bridge as claimed in claim 1, wherein the transverse direction of the V-shaped piers is in the form of single-limb, double-limb or multi-limb inclined legs, and the V-shaped piers and the V-shaped rigid frame main beam and the V-shaped rigid frame foundation and the V-shaped piers are connected through concretions or supports.
6. The asymmetric continuous beam-V-shaped rigid frame combined bridge as claimed in claim 5, wherein the structure of the main beam of the V-shaped rigid frame adopts a prestressed concrete structure, a steel-concrete combined structure or a UHPC ultra-high performance concrete beam.
7. The asymmetric continuous beam-V-shaped rigid frame combined bridge as claimed in claim 1, wherein the main beam of the V-shaped rigid frame is a height beam or an equal height beam.
8. The asymmetric continuous beam-V rigid frame composite bridge of claim 5, wherein the support is a ball support, a basin support or a plate support.
9. The asymmetric continuous beam-V-shaped rigid frame combined bridge as claimed in claim 1, wherein each of the continuous beam main pier and the V-shaped pier is provided with a swivel ball joint; the swivel spherical hinge on the continuous beam main pier is positioned at the top or the bottom of the continuous beam main pier, and the swivel spherical hinge on the V-shaped pier is positioned at the bottom of the V-shaped pier.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222141802.7U CN217781700U (en) | 2022-08-15 | 2022-08-15 | Asymmetric continuous beam-V-shaped rigid frame combined bridge |
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| CN202222141802.7U CN217781700U (en) | 2022-08-15 | 2022-08-15 | Asymmetric continuous beam-V-shaped rigid frame combined bridge |
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| CN202222141802.7U Active CN217781700U (en) | 2022-08-15 | 2022-08-15 | Asymmetric continuous beam-V-shaped rigid frame combined bridge |
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