CN220521069U - Bridge crossing river/road in skew manner by adopting lower supporting structure of special-shaped bent cap - Google Patents
Bridge crossing river/road in skew manner by adopting lower supporting structure of special-shaped bent cap Download PDFInfo
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- CN220521069U CN220521069U CN202321613705.1U CN202321613705U CN220521069U CN 220521069 U CN220521069 U CN 220521069U CN 202321613705 U CN202321613705 U CN 202321613705U CN 220521069 U CN220521069 U CN 220521069U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 21
- 206010066054 Dysmorphism Diseases 0.000 claims description 6
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000004567 concrete Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
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Abstract
The utility model discloses a lower supporting structure adopting a special-shaped bent cap, which comprises a pier and a special-shaped bent cap positioned above the pier, wherein the special-shaped bent cap comprises a first supporting beam body and a second force transmission beam body which are mutually crossed, the first supporting beam body is positioned above the pier and is directly connected with the pier, and the second force transmission beam body is connected with the first supporting beam body and is used for bearing the load of an upper beam structure. The utility model also provides a bridge crossing the river/road in an oblique way. The utility model can better adapt to terrains, realize orthogonal arrangement of bridges under different crossing angles of bridge routes, crossing rivers and roads, avoid adopting oblique bridges with complex design and construction, have the advantages of the oblique bridges, facilitate advancing the design and construction standardization of the bridges, reduce construction difficulty, shorten construction period, save engineering investment and improve the durability of the whole life cycle of the bridge structure.
Description
Technical Field
The utility model belongs to the field of bridges, and particularly relates to a lower supporting structure and a bridge.
Background
At present, the middle-and-small-span bridge layout generally follows the overall trend of routes, and the routes inevitably generate skew with the crossed river or road. If the bridge is adopted to be arranged in an orthogonal mode (the bent cap is perpendicular to the route trend of the upper prefabricated structure), the pier columns in the river channel are disordered, meanwhile, the pier columns can increase the water blocking rate, the influence on the crossed river is large, and sometimes the establishment of the whole bridge type scheme can be even influenced.
Therefore, when the route is crossed obliquely across a river or a local road, the bridge inevitably adopts an oblique crossing mode, so that the bent cap at the upper part of the bridge pier and the route trend of the upper prefabricated structure form an oblique clamping angle, and the arrangement direction of the bridge pier is consistent with the water flow direction. The design, construction and stress of the diagonal bridge are all more complicated than those of an orthogonal bridge, standardization is not facilitated, the diagonal angle is controlled within 45 degrees in the common design of the diagonal bridge, and the diagonal bridge layout scheme is not applicable when the diagonal angle exceeds 45 degrees.
Therefore, there is a need for a new structure to achieve bridge skew across a river or local road.
Disclosure of Invention
The utility model aims to overcome the defects and the shortcomings in the background technology, and provides a bridge which is used for construction, is beneficial to standardization, has little influence on a crossed river road and is used for crossing the river/road in an oblique way by adopting a lower supporting structure of a special-shaped bent cap. In order to solve the technical problems, the technical scheme provided by the utility model is as follows:
the utility model provides an adopt lower part bearing structure of dysmorphism bent cap, includes the pier with be located the dysmorphism bent cap of pier top, the dysmorphism bent cap includes the first support beam body and the second power roof beam body that intercrossing set up, the first support beam body is located the pier top and directly with the pier links to each other, the second power roof beam body links to each other with the first support beam body and is used for bearing the load of upper portion roof beam structure.
In the lower supporting structure adopting the special-shaped bent cap, preferably, the first supporting beam body and the second force transmission beam body are of an integrally formed reinforced concrete structure, and the first supporting beam body and the second force transmission beam body are all positioned on the same horizontal plane and are intersected through the middle part.
In the above lower support structure using the special-shaped bent cap, preferably, bridge piers are arranged below two ends of the first support beam body, and tie beams are arranged between adjacent bridge piers. The tie beam can increase the overall stability of the structure.
In the above lower support structure using the special-shaped bent cap, preferably, bridge piers are arranged below both ends of the first support beam body, bridge piers are also arranged below the body parts of the first support beam body and the second force transfer beam body, and tie beams are arranged between adjacent bridge piers.
In the lower supporting structure adopting the special-shaped bent cap, preferably, two ends of the second force transmission beam body are provided with lateral stop blocks.
The utility model also provides a bridge crossing river/road in a diagonal way, which comprises an upper beam structure and the lower supporting structure adopting the special-shaped bent cap, wherein the upper beam structure is in diagonal with the trend of the river/road, the setting direction of the first supporting beam body is the same as the trend of the river/road, and the upper beam structure is orthogonally arranged on the second force transmission beam body through a plurality of supports.
The utility model also provides a construction method of the bridge crossing the river/road in an oblique way, which comprises the following steps:
s1: pre-forming the upper beam structure;
s2: constructing a pier;
s3: erecting a bracket and a mounting template for constructing the first support beam body and the second force transmission beam body on the bridge pier, binding reinforcing steel bars in the first support beam body and the second force transmission beam body, pouring concrete, curing and demolding to obtain the first support beam body and the second force transmission beam body;
s4: and arranging a support on the second force transfer beam body, and erecting the upper beam structure to finish construction.
The lower supporting structure adopting the special-shaped bent cap comprises the special-shaped bent cap for realizing orthogonal arrangement of bridges, bridge piers for transmitting upper structural loads, tie beams for increasing transverse overall stability and pile foundations for transmitting loads to foundations. The special-shaped bent cap is divided into two parts, one part is a first support beam body parallel to the river or the crossed direction, the other part is a first force transmission beam body which bears an upper structure orthogonal prefabricated structure along the vertical direction of the bridge route, and the two parts are connected into a whole and are poured together. The orthogonally arranged precast beams are connected with the special-shaped bent cap through the support, and the included angle between the first support beam body and the second force transmission beam body is determined according to the topography.
According to the lower supporting structure adopting the special-shaped bent cap, through the structural design of the special-shaped bent cap and the cooperation of the first supporting beam body and the second force transmission beam body, on one hand, the upper beam structure and the bent cap can be kept orthogonal, the difficult problems that an oblique bridge is more complicated in design, construction and stress than an orthogonal bridge and is not beneficial to standardization can be solved, and a traditional oblique bridge mode is not needed. On the other hand, the bridge has the advantages of the traditional skew bridge, the arrangement direction of the bridge pier is consistent with the direction of water flow or road, and the influence of the bridge pier on the river or road is avoided.
In the whole, the lower supporting structure adopting the special-shaped bent cap has the characteristics of meeting the design and construction requirements, along with definite and reasonable stress, convenient design and construction, high construction speed, low construction cost and small influence on the intersected river channels and roads.
Compared with the prior art, the utility model has the advantages that:
the lower supporting structure of the special-shaped bent cap and the bridge adopting the lower supporting structure can be well adapted to terrains, the bridge orthogonal arrangement is realized under different crossing angles of bridge routes, crossing rivers and roads, the bias bridge with complex design and construction is avoided, meanwhile, the advantage of the bias bridge is achieved, the design and construction standardization of the bridge is facilitated, the construction difficulty is reduced, the construction period is shortened, the engineering investment is saved, and the durability of the whole life cycle of the bridge structure is improved.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a lower support structure employing a shaped bent cap in embodiment 1.
Fig. 2 is a schematic diagram of the positional relationship between the special-shaped bent cap and the river/road in example 1.
Fig. 3 is a plan view of fig. 1.
Fig. 4 is a cross-sectional view of the A-A plane of fig. 3.
Fig. 5 is a cross-sectional view of the B-B plane in fig. 3.
Fig. 6 is a cross-sectional view of the C-C plane of fig. 5.
Fig. 7 is a schematic structural view of a lower support structure employing a shaped bent cap in embodiment 2.
Legend description:
1. a first support beam body; 2. bridge piers; 3. a tie beam; 4. pile foundation; 5. the second force transmission beam body; 6. a lateral stop; 7. a support; s1, river/road schematic lines; s2, designing a bridge line design schematic line; s3, a trend line of the river/road.
Detailed Description
The present utility model will be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments are shown, for the purpose of illustrating the utility model, but the scope of the utility model is not limited to the specific embodiments shown.
Unless defined otherwise, all technical and scientific terms used hereinafter have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the scope of the present utility model.
Unless otherwise specifically indicated, the various raw materials, reagents, instruments, equipment and the like used in the present utility model are commercially available or may be prepared by existing methods.
Example 1:
as shown in fig. 1 to 6, the lower support structure using the special-shaped capping beam in this embodiment includes a bridge pier 2 and a special-shaped capping beam located above the bridge pier 2, the special-shaped capping beam includes a first support beam body 1 and a second force-transmitting beam body 5 which are disposed to cross each other, the first support beam body 1 is located above the bridge pier 2 and directly connected to the bridge pier 2, and the second force-transmitting beam body 5 is connected to the first support beam body 1 and is used for bearing the load of the upper beam structure.
In this embodiment, the first support beam body 1 and the second force-transmitting beam body 5 are integrally formed reinforced concrete structures, and the first support beam body 1 and the second force-transmitting beam body 5 are all located on the same horizontal plane and intersect through the middle part.
In this embodiment, bridge piers 2 are provided below both ends of the first support beam body 1, and tie beams 3 are provided between adjacent bridge piers 2.
In this embodiment, lateral stoppers 6 are provided at both ends of the second force-transmitting beam body 5.
The bridge for crossing river/road in the diagonal manner in this embodiment includes an upper beam structure and the lower supporting structure adopting the special-shaped capping beam, the upper beam structure and the trend of river/road are kept in diagonal manner, the setting direction of the first supporting beam body 1 and the trend of river/road are kept the same, and the upper beam structure is orthogonally arranged on the second force-transmitting beam body 5 through a plurality of supports 7. Specifically, as shown in fig. 2, the river/road schematic line S1 and the bridge line design schematic line S2 are kept diagonal, the first support beam body 1 is parallel to the river/road trend schematic line S3, and the included angle between the first support beam body and the bridge line design schematic line S2 is α.
The construction method of the bridge crossing the river/road in the embodiment comprises the following steps:
s1: pre-forming the upper beam structure;
s2: constructing a pile foundation 4 and a pier 2;
s3: erecting a bracket and a mounting template for constructing a first support beam body 1 and a second force transmission beam body 5 on a bridge pier 2, binding reinforcing steel bars in the first support beam body 1 and the second force transmission beam body 5, pouring concrete, curing and demolding to obtain the first support beam body 1 and the second force transmission beam body 5;
s4: and a support 7 is arranged on the second force transmission beam body 5, and an upper beam structure is erected, so that the construction is completed.
Example 2:
as shown in fig. 7, in the lower support structure using the special-shaped bent cap of this embodiment, bridge piers 2 are disposed below both ends of the first support beam body 1, bridge piers 2 are also disposed below the intersection of the first support beam body 1 and the second force transfer beam body 5, tie beams 3 are disposed between adjacent bridge piers 2, and other structures are the same as those of embodiment 1.
The lower supporting structure of the special-shaped bent cap and the bridge adopting the lower supporting structure in the embodiment can be well adapted to terrains, the bridge orthogonal arrangement is realized under different crossing angles of a bridge route, crossing rivers and roads, the bias bridge with complex design and construction is avoided, meanwhile, the advantage of the bias bridge is achieved, the design and construction standardization of the bridge is facilitated to be advanced, the construction difficulty is reduced, the construction period is shortened, the engineering investment is saved, and the durability of the whole life cycle of the bridge structure is improved.
Claims (6)
1. The utility model provides an adopt lower part bearing structure of dysmorphism bent cap, its characterized in that includes pier (2) and is located the dysmorphism bent cap of pier (2) top, the dysmorphism bent cap includes first support beam body (1) and second biography power roof beam body (5) that intercrossing set up, first support beam body (1) are located pier (2) top and directly with pier (2) link to each other, second biography power roof beam body (5) link to each other and are used for bearing the load of upper portion roof beam structure with first support beam body (1).
2. The lower support structure adopting the special-shaped bent cap according to claim 1, wherein the first support beam body (1) and the second force transmission beam body (5) are integrally formed reinforced concrete structures, and the first support beam body (1) and the second force transmission beam body (5) are positioned on the same horizontal plane and are intersected through the middle part.
3. The lower support structure using the special-shaped bent cap according to claim 1, wherein bridge piers (2) are arranged below both ends of the first support beam body (1), and tie beams (3) are arranged between adjacent bridge piers (2).
4. The lower support structure adopting the special-shaped bent cap according to claim 1, wherein bridge piers (2) are arranged below two ends of the first support beam body (1), bridge piers (2) are also arranged below the intersection part of the first support beam body (1) and the second force transmission beam body (5), and tie beams (3) are arranged between adjacent bridge piers (2).
5. Lower support structure with profiled bent cap according to any one of claims 1-4, characterized in that the second force transfer beam body (5) is provided with lateral stops (6) at both ends.
6. Bridge crossing river/road in an oblique way, characterized by comprising an upper beam structure and a lower support structure adopting a special-shaped bent cap according to any one of claims 1-5, wherein the upper beam structure is kept oblique to the trend of the river/road, the arrangement direction of the first support beam body (1) is kept the same as the trend of the river/road, and the upper beam structure is orthogonally arranged on the second force transmission beam body (5) through a plurality of supports (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613705.1U CN220521069U (en) | 2023-06-25 | 2023-06-25 | Bridge crossing river/road in skew manner by adopting lower supporting structure of special-shaped bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613705.1U CN220521069U (en) | 2023-06-25 | 2023-06-25 | Bridge crossing river/road in skew manner by adopting lower supporting structure of special-shaped bent cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220521069U true CN220521069U (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321613705.1U Active CN220521069U (en) | 2023-06-25 | 2023-06-25 | Bridge crossing river/road in skew manner by adopting lower supporting structure of special-shaped bent cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220521069U (en) |
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2023
- 2023-06-25 CN CN202321613705.1U patent/CN220521069U/en active Active
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