CN209836780U - Lightweight abutment with anchor plate - Google Patents
Lightweight abutment with anchor plate Download PDFInfo
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- CN209836780U CN209836780U CN201920179122.XU CN201920179122U CN209836780U CN 209836780 U CN209836780 U CN 209836780U CN 201920179122 U CN201920179122 U CN 201920179122U CN 209836780 U CN209836780 U CN 209836780U
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Abstract
The utility model discloses a light-duty abutment with anchor plate relates to the bridge field, and this abutment structure sets up main atress components such as pile foundation, cushion cap, side wall and rib post from bottom to top. Through a large amount of structure checking calculation and stability analysis, the back wall and the side wall all adopt reinforced concrete structures, can reduce abutment body size effectively, alleviate abutment structure dead weight. The abutment adopts the design scheme that the bearing platform is connected with the pile foundation, so that the overall stability of the structure is ensured. The bridge abutment can be more suitable for objective conditions such as steep terrain, poor geological conditions and the like in mountainous areas, the filling and excavating amount is reduced, and the damage to the mountain surface environment is greatly reduced. When the bridge scheme is selected, the bridge hole arrangement can be optimized by adopting the bridge abutment, the bridge length is reduced, and the bridge abutment is usually connected with the road shoulder retaining wall in the rear of the side wall of the bridge abutment, so that a large amount of bridge abutment conical slope can be cancelled, the damage degree of the mountain environment is reduced to the minimum degree, and the bridge abutment has remarkable environmental protection and economic benefits.
Description
Technical Field
The utility model relates to a bridge field, concretely relates to light-duty abutment with anchor plate.
Background
With the implementation and improvement of national highway network planning in China, more and more mountain highway construction projects are provided at present. Because mountain area topography is steep, the abutment often sets up on steeper cutting slope, and these positions geological conditions are complicated various for mountain area abutment design becomes the key point of bridge design.
The bridge abutment is an important component of the bridge, has the functions of supporting a bridge span structure and connecting roads on two banks, and can not only retain soil and protect the banks, but also bear the filling pressure after abutment and the additional soil side pressure generated by vehicle load. Therefore, the abutment itself is required to have sufficient strength, rigidity, and stability, and also has a certain requirement for the bearing capacity of the foundation, the amount of settlement, the frictional resistance between the foundation and the foundation, and the like.
At present, the commonly used bridge abutment form in the mountain area highway construction is mainly a gravity type U-shaped bridge abutment, a pile type bridge abutment and a rib plate abutment.
The gravity type U-shaped abutment has the main defects that: 1) the abutment has larger volume and dead weight; 2) the abutment generally adopts large-volume grouted rubbles or rubble concrete, and the construction quality is difficult to control. 3) Along with the increase of the height of the bridge abutment, the requirement on the bearing capacity of the bridge site area is higher, and the method is suitable for large and medium bridges with larger foundation bearing capacity and filling height below 8-10 meters; 4) when the abutment is located at a place with a steep longitudinal and transverse gradient, in order to ensure the safety distance of the foundation and prevent the foundation from being empty, the foundation is generally buried deeper, and the abutment is designed to be higher, so that the excavation amount at the abutment is greatly increased, a higher side slope is formed, and the protection engineering amount is increased.
The traditional pile type bridge abutment and rib plate abutment have the main defects that a conical slope needs to be arranged in front of the bridge abutment, particularly on a mountain road, the slope is steep, the terrain is complex, the amount of the conical slope of the bridge abutment is large, if the slope rate of the conical slope is close to the slope rate of the original ground, the conical slope is difficult to arrange, the conical slope cannot be constructed and compacted, the terrain is greatly improved, and the environment is greatly damaged; or the side span waste is caused by deep excavation, and secondary disasters such as slope instability and the like are easily caused.
Gravity type U-shaped abutment usually needs to have great excavation to the massif, has to a great extent to the vegetation in mountain area. The pile type bridge abutment and the ribbed slab abutment usually need to be provided with a taper slope to protect the stability of the bridge abutment structure, and the damage of the large-volume bridge abutment taper slope to the mountain area environment and the earth surface vegetation is also huge. Does not conform to the core construction concept of the resource-saving society and the environment-friendly society.
In summary, there is a need for a bridge abutment for mountain areas, which has light self-weight, controllable quality, convenient construction, and does not require large-area ecological destruction (which does not require the phenomena of setting a conical slope or digging a mountain body, etc., which seriously affect the environment) during construction.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims at providing a light-duty abutment that quality is light-duty relatively, build easy light-duty abutment that has the anchor slab to overcome the abutment in the above-mentioned current mountain area when building, need establish the coning slope or excavate the ecological phenomenon of serious destruction abutment periphery such as massif.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a lightweight abutment having an anchor plate for supporting the load of a bridge superstructure, comprising:
the foundation platform is arranged on the ground;
at least one rib column, the rib column is arranged on the foundation platform; and
the capping beam is arranged on the rib column and used for supporting the load of the upper structure of the bridge, at least 2 support base cushion stones are arranged on the capping beam,
the foundation platform, the rib columns and the cover beams are all of reinforced concrete structures with steel reinforcement cages arranged inside, and the steel reinforcement cages of the foundation platform, the rib columns and the cover beams form an integrated structure.
On the basis of the scheme: wherein the foundation platform comprises at least 2 pile foundations and a bearing platform,
a pile foundation, one end of which is arranged in the soil layer and is used for supporting the load from the bearing platform and transmitting the load into the soil layer,
a bearing platform arranged on the pile foundation and fixedly connected with the other end of the pile foundation for supporting the load from the rib column,
the pile foundation is a reinforced concrete structure with a reinforcement cage arranged inside,
the bearing platform is of a reinforced concrete structure with a reinforcement cage arranged inside,
the steel reinforcement cage of cushion cap, the steel reinforcement cage of one end fixed connection pile foundation, the steel reinforcement cage of other end fixed connection rib post.
On the basis of the scheme: wherein, the main atress reinforcing bar of pile foundation is vertical direction setting, and the main atress reinforcing bar of cushion cap is the horizontal direction setting, and the main atress reinforcing bar of rib post is vertical direction setting, and the main atress reinforcing bar of bent cap is the horizontal direction setting.
On the basis of the scheme, the method further comprises the following steps:
the connecting wall is a reinforced concrete structure with a reinforcement cage arranged inside,
when the number of the rib columns is more than or equal to 2, two adjacent rib columns are connected through a connecting wall,
the reinforcement cage of the connecting wall is respectively and fixedly connected with the reinforcement cages of the two rib columns and the reinforcement cage of the bearing platform.
On the basis of the scheme, the method further comprises the following steps:
an anchor plate and a pull rod, wherein the pull rod is provided with a pull rod,
an anchor plate embedded in the soil and having a reinforced concrete structure with a reinforcement cage,
and the pull rod is embedded in the soil, one end of the pull rod is fixedly connected with the reinforcement cage of the anchor plate, and the other end of the pull rod is fixedly connected with the reinforcement cage of the rib column.
On the basis of the scheme, the method further comprises the following steps:
the back wall is arranged on the cover beam and used for retaining soil in a back direction, the back wall is of a reinforced concrete structure with a steel reinforcement cage arranged inside, and the steel reinforcement cage of the back wall and the steel reinforcement cage of the cover beam are integrated.
On the basis of the scheme, the method further comprises the following steps:
the side wall is arranged on the bearing platform and used for laterally retaining soil,
the side wall is of a reinforced concrete structure with a steel reinforcement cage arranged inside, and the steel reinforcement cage of the side wall is fixedly connected with the steel reinforcement cage of the rib column, the steel reinforcement cage of the bearing platform, the steel reinforcement cage of the cover beam and the steel reinforcement cage of the back wall respectively.
On the basis of the scheme: wherein, the both ends of bent cap have the dog respectively, and this dog is arranged in carrying out horizontal location to the girder in the bridge superstructure.
On the basis of the scheme: wherein, the height range of the bearing platform is 1.5 meters to 2.5 meters, and the diameter value range of the pile foundation is 1.0 meters to 2.5 meters.
On the basis of the scheme: wherein the height of the rib columns does not exceed 7 meters.
Compared with the prior art, the utility model has the advantages of:
(1) the utility model provides a light-duty abutment with anchor plate because include: the foundation platform is arranged on the ground; at least one rib column, the rib column is arranged on the foundation platform; and the capping beam is arranged on the rib column and used for supporting the load of the upper structure of the bridge, at least 2 support base stones are arranged on the capping beam, the foundation platform, the rib column and the capping beam are all of a reinforced concrete structure with a steel reinforcement cage arranged therein, and the steel reinforcement cage of the foundation platform, the steel reinforcement cage of the rib column and the steel reinforcement cage of the capping beam form an integrated structure. The pile foundation, one end sets up in the soil layer for the load that the supporting comes from the cushion cap, and with this load transmission to the soil layer in, the cushion cap, set up on the pile foundation, with the other end fixed connection of pile foundation, be used for the supporting load that comes from the rib post, the pile foundation is the reinforced concrete structure who establishes the steel reinforcement cage in, the cushion cap is the reinforced concrete structure who establishes the steel reinforcement cage in, the steel reinforcement cage of cushion cap, the steel reinforcement cage of one end fixed connection pile foundation, the steel reinforcement cage of other end fixed connection rib post. To sum up, the utility model provides a light bridge abutment with anchor plate originally sets up main atress components such as pile foundation, cushion cap, rib post from bottom to top. The size of the abutment body can be effectively reduced, and the self weight of the abutment structure is reduced. Therefore, the utility model provides a light-duty abutment with anchor plate can cancel the abutment taper slope of big volume, reduces the destruction degree of mountain area environment to minimum, has apparent environmental protection and economic benefits.
(2) The utility model provides a light-duty abutment with anchor plate because have anchor plate and pull rod, the anchor plate imbeds in soil, for the reinforced concrete structure who has the steel reinforcement cage, the pull rod imbeds in soil, the steel reinforcement cage fixed connection of pull rod one end and anchor plate, the steel reinforcement cage fixed connection of the other end and rib post. The pressure of soil behind the bridge abutment can be well balanced, the pressure of the soil on the bridge abutment is reduced, and the bridge abutment is more stable.
Drawings
Fig. 1 is a schematic structural view of a lightweight abutment with an anchor plate in an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of a lightweight abutment with an anchor plate in an embodiment of the present invention.
Referring to fig. 1, an embodiment of the present invention provides a lightweight abutment with anchor plates for supporting a load of a bridge superstructure, comprising: the foundation platform comprises a foundation platform 1, rib columns 2, cover beams 3, a connecting wall 4, an anchor plate 5, a pull rod 6, a back wall 7 and a side wall 8.
The foundation platform 1 is arranged on the ground and comprises at least 4 pile foundations 11 and a bearing platform 12.
The pile foundation 11, one end of which is arranged in the soil layer, is used for supporting the load from the bearing platform 12 and transmitting the load into the soil layer.
And the bearing platform 12 is arranged on the pile foundation 11, is fixedly connected with the other end of the pile foundation and is used for bearing the load from the rib column 2.
The pile foundation 11 is a reinforced concrete structure with a reinforcement cage arranged inside, the bearing platform 12 is a reinforced concrete structure with a reinforcement cage arranged inside, and main stressed steel bars of the pile foundation 11 are arranged in the vertical direction.
The steel reinforcement cage of cushion cap 12, the steel reinforcement cage of one end fixed connection pile foundation 11, the steel reinforcement cage of other end fixed connection rib post 2, the main atress reinforcing bar of cushion cap 12 sets up for the horizontal direction.
Rib post 2, rib post 2 set up on basic platform 1, and the reinforcing bar of rib post 2 is the vertical direction setting, and rib post 2 is used for supporting the load that comes from bent cap 3, and in this embodiment, the figure of rib post 2 is 9, and 9 rib posts 2 are arranged side by side.
And the cover beam 3 is arranged on the rib post 2 and is used for supporting the load of the upper structure of the bridge, and the cover beam 3 comprises a support cushion 31 and a stop block 32.
The support base stones 31 are used for placing bridge supports, and 7 support base stones 31 are arranged on the cover beam 3. Through the bridge bearings, the bridge superstructure transfers its load to the bearing chocks 31 of the capping beams 3 and thus to the capping beams 3.
Both ends of bent cap 3 have dog 32 respectively, and this dog 32 is arranged in carrying out transverse orientation to the girder in the bridge superstructure, and the main atress reinforcing bar of bent cap 3 sets up for the horizontal direction.
Wherein, foundation platform 1, rib post 2 and bent cap 3 are the reinforced concrete structure who establishes the steel reinforcement cage in, and foundation platform 1's steel reinforcement cage, the steel reinforcement cage of root rib post 2 and the steel reinforcement cage of bent cap 3 form integrated structure.
The abutment provided in this embodiment further comprises: the connecting wall 4 is a reinforced concrete structure with a reinforcement cage arranged inside. When the number of the rib columns 2 is larger than or equal to 2, the two adjacent rib columns 2 are connected through the connecting wall 4, and the reinforcement cages of the connecting wall 4 are respectively and fixedly connected with the reinforcement cages of the two rib columns 2 and the reinforcement cage of the bearing platform 12. The connecting wall 4 is used for reinforcing the connection between two adjacent rib posts 2.
The abutment provided in this embodiment further comprises: anchor plate 5 and tie rods 6.
And an anchor plate 5 buried in the soil and having a reinforced concrete structure with a reinforcement cage.
And the pull rod 6 is embedded in the soil, one end of the pull rod 6 is fixedly connected with the reinforcement cage of the anchor plate 5, and the other end of the pull rod 6 is fixedly connected with the reinforcement cage of the rib column 2. The anchor plate 5 and the tie rod 6 are used for balancing the pressure from the soil behind the abutment, reducing the pressure of the soil on the abutment, and further making the abutment more stable.
The abutment provided in this embodiment further comprises: and the back wall 7 is arranged on the cover beam 3 and used for retaining soil in a back direction, the back wall 7 is of a reinforced concrete structure with a reinforcement cage arranged inside, and the reinforcement cage of the back wall 7 and the reinforcement cage of the cover beam 3 are integrated.
The abutment provided in this embodiment further comprises: the side wall 8 is arranged on the bearing platform 12 and used for lateral earth retaining, the side wall 8 is of a reinforced concrete structure with a steel reinforcement cage arranged inside, and the steel reinforcement cage of the side wall 8 is fixedly connected with the steel reinforcement cage of the rib column 2, the steel reinforcement cage of the bearing platform 12, the steel reinforcement cage of the cover beam 3 and the steel reinforcement cage of the back wall 7 respectively. The side wall 8 can be one or two, and if the abutment has two side walls 8, the two side walls 8 are respectively symmetrically arranged at two ends of the bent cap 3, and in this embodiment, the side wall 8 is one and is located at one end of the bent cap 3.
In addition, the height range of the bearing platform 12 is 1.5 m to 2.5 m, the diameter range of the pile foundation 11 is 1.0 m to 2.5 m, and the height of the rib column 2 is not more than 7 m. In the embodiment, the bearing platform 12 is 2 meters, the diameter of the pile foundation 11 is 1.8 meters, and the height of the rib post 2 is not more than 2.5 meters.
Effects of the embodiment:
the lightweight abutment with anchor plate in this embodiment, because it includes: the foundation platform is arranged on the ground; at least one rib column, the rib column is arranged on the foundation platform; and the capping beam is arranged on the rib column and used for supporting the load of the upper structure of the bridge, at least 2 support base stones are arranged on the capping beam, the foundation platform, the rib column and the capping beam are all of a reinforced concrete structure with a steel reinforcement cage arranged therein, and the steel reinforcement cage of the foundation platform, the steel reinforcement cage of the rib column and the steel reinforcement cage of the capping beam form an integrated structure. The pile foundation, one end sets up in the soil layer for the load that the supporting comes from the cushion cap, and with this load transmission to the soil layer in, the cushion cap, set up on the pile foundation, with the other end fixed connection of pile foundation, be used for the supporting load that comes from the rib post, the pile foundation is the reinforced concrete structure who establishes the steel reinforcement cage in, the cushion cap is the reinforced concrete structure who establishes the steel reinforcement cage in, the steel reinforcement cage of cushion cap, the steel reinforcement cage of one end fixed connection pile foundation, the steel reinforcement cage of other end fixed connection rib post. In summary, the light bridge abutment with anchor plate provided in this embodiment is provided with the main stressed members such as the pile foundation, the bearing platform, the rib post, etc. from bottom to top. The size of the abutment body can be effectively reduced, and the self weight of the abutment structure is reduced. Therefore, the light abutment with the anchor plate provided by the embodiment can cancel a large amount of abutment conical slopes, the damage degree of the mountain area environment is reduced to the minimum degree, and the light abutment with the anchor plate has obvious environmental protection and economic benefits.
In addition, the light abutment with the anchor plate in the embodiment has the anchor plate and the pull rod, the anchor plate is embedded in the soil and is of a reinforced concrete structure with a reinforcement cage, the pull rod is embedded in the soil, one end of the pull rod is fixedly connected with the reinforcement cage of the anchor plate, and the other end of the pull rod is fixedly connected with the reinforcement cage of the rib column. The pressure of soil behind the bridge abutment can be well balanced, the pressure of the soil on the bridge abutment is reduced, and the bridge abutment is more stable.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (10)
1. A lightweight abutment having an anchor plate for supporting the load of a bridge superstructure, comprising:
the foundation platform is arranged on the ground;
at least one rib post disposed on the base platform; and
the capping beam is arranged on the rib column and used for supporting the load of the upper structure of the bridge, at least 2 support base cushion stones are arranged on the capping beam,
the foundation platform, the rib columns and the cover beams are all reinforced concrete structures with built-in reinforcement cages, and the reinforcement cages of the foundation platform, the reinforcement cages of the rib columns and the reinforcement cages of the cover beams form an integrated structure.
2. The abutment of claim 1, wherein:
wherein the foundation platform comprises at least 2 pile foundations and a bearing platform,
one end of the pile foundation is arranged in the soil layer and is used for supporting the load from the bearing platform and transmitting the load into the soil layer,
the bearing platform is arranged on the pile foundation, is fixedly connected with the other end of the pile foundation and is used for supporting the load from the rib column,
the pile foundation is a reinforced concrete structure with a reinforcement cage arranged inside,
the bearing platform is of a reinforced concrete structure with a reinforcement cage arranged inside,
the steel reinforcement cage of cushion cap, one end fixed connection the steel reinforcement cage of pile foundation, other end fixed connection the steel reinforcement cage of rib post.
3. The abutment of claim 2, wherein:
wherein, the main stressed steel bars of the pile foundation are arranged in the vertical direction,
the main stressed steel bars of the bearing platform are arranged in the horizontal direction,
the main stressed steel bars of the rib columns are arranged in the vertical direction,
the main stressed steel bars of the bent cap are arranged in the horizontal direction.
4. The abutment of claim 2, further comprising:
the connecting wall is a reinforced concrete structure with a reinforcement cage arranged inside,
when the number of the rib columns is more than or equal to 2, two adjacent rib columns are connected through the connecting wall,
and the reinforcement cage of the connecting wall is fixedly connected with the reinforcement cages of the two rib columns and the reinforcement cage of the bearing platform respectively.
5. The abutment of claim 1, further comprising:
an anchor plate and a pull rod, wherein the pull rod is provided with a pull rod,
the anchor plate is embedded in the soil and has a reinforced concrete structure with a reinforcement cage,
the pull rod is embedded in soil, one end of the pull rod is fixedly connected with the reinforcement cage of the anchor plate, and the other end of the pull rod is fixedly connected with the reinforcement cage of the rib column.
6. The abutment of claim 4, further comprising:
the back wall is arranged on the cover beam and used for retaining soil in a back direction, the back wall is of a reinforced concrete structure with a steel reinforcement cage arranged inside, and the steel reinforcement cage of the back wall and the steel reinforcement cage of the cover beam are integrated.
7. The abutment of claim 6, further comprising:
the side wall is arranged on the bearing platform and used for laterally retaining soil,
the side wall is of a reinforced concrete structure with a steel reinforcement cage arranged inside, and the steel reinforcement cage of the side wall is fixedly connected with the steel reinforcement cage of the rib column, the steel reinforcement cage of the bearing platform, the steel reinforcement cage of the cover beam and the steel reinforcement cage of the back wall respectively.
8. The abutment of claim 1, wherein:
and two ends of the cover beam are respectively provided with a stop block, and the stop blocks are used for transversely positioning the main beam in the bridge superstructure.
9. The abutment of claim 2, wherein:
wherein, the height scope of cushion cap is 1.5 meters to 2.5 meters, the diameter value scope of pile foundation is 1.0 meters to 2.5 meters.
10. The abutment of claim 2, wherein:
wherein the height of the rib post is not more than 7 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920179122.XU CN209836780U (en) | 2019-01-31 | 2019-01-31 | Lightweight abutment with anchor plate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920179122.XU CN209836780U (en) | 2019-01-31 | 2019-01-31 | Lightweight abutment with anchor plate |
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| CN209836780U true CN209836780U (en) | 2019-12-24 |
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| CN201920179122.XU Active CN209836780U (en) | 2019-01-31 | 2019-01-31 | Lightweight abutment with anchor plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921791A (en) * | 2021-01-25 | 2021-06-08 | 南昌航空大学 | Light abutment and construction method thereof |
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2019
- 2019-01-31 CN CN201920179122.XU patent/CN209836780U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112921791A (en) * | 2021-01-25 | 2021-06-08 | 南昌航空大学 | Light abutment and construction method thereof |
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Effective date of registration: 20200113 Address after: 430056 No. 18, entrepreneurial road, Wuhan economic and Technological Development Zone, Hubei, Wuhan Patentee after: China Communications Second Highway Survey Design and Research Institute Co., Lt Address before: 430000 floor 3, block B, Huayuan Business Plaza, No. 16, Liye Road, Caidian District, Wuhan, Hubei Province Patentee before: Wuhan Kingsroad Technology Development Co., Ltd. |