CN209907183U - Highway assembled abutment - Google Patents
Highway assembled abutment Download PDFInfo
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- CN209907183U CN209907183U CN201920173922.0U CN201920173922U CN209907183U CN 209907183 U CN209907183 U CN 209907183U CN 201920173922 U CN201920173922 U CN 201920173922U CN 209907183 U CN209907183 U CN 209907183U
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Abstract
The utility model discloses an assembled bridge deck of highway, including prefabricated cap roof beam, prefabricated cap roof beam includes that mutual level sets up prefabricated cap roof beam A section and prefabricated cap roof beam B section, the junction of prefabricated cap roof beam A end with prefabricated cap roof beam B section is filled with pitch fibre batting, wherein, the front end of prefabricated cap roof beam A section and prefabricated cap roof beam B section all is provided with first prefabricated dog, the right-hand member upper surface of prefabricated cap roof beam B section vertically is provided with second prefabricated dog; the prefabricated back wall is arranged in the first prefabricated blocking block; the prefabricated earwall is arranged in the second prefabricated baffle block; prefabricated PRC tubular pile, prefabricated PRC tubular pile equidistant setting is in prefabricated cap bottom of the roof beam portion, the utility model discloses can show improvement construction progress and construction quality, reduce the influence of construction to existing traffic simultaneously, have good technique and economic superiority, be the highway abutment form of easily promoting.
Description
The technical field is as follows:
the utility model relates to a highway builds technical field, concretely relates to highway assembled abutment.
Background art:
in recent years, with the rapid rise of labor cost and the improvement of national environmental awareness, bridge industrialization has become a trend of times development, assembly is a key direction of future construction and development in China, and large-scale factory standardization of components in the thirteen-five development direction of the department of transportation is one of ten key directions of future development. At present, a large-scale highway reconstruction and extension system is built in China, but due to the influence of various factors, traffic during construction is influenced to a certain extent, and the problems mainly faced are that: how to reduce the construction period, reduce the influence of construction on the existing traffic, control the on-site construction quality, reduce the influence of environment and other interference factors on the progress and quality of the project, control the construction cost and the like. The problems can be effectively solved by adopting an assembled bridge structure. In recent years, our country has gained a lot of experience in the industrial construction field of bridge superstructures, but there are relatively few applications of bridge substructure assembled components, especially abutment components.
In 2002, Lawrence Construction and Wilson began to adopt an assembled bridge deck in the United states for replacing an old bridge, and the single span 40ft bridge was located in Danfosnan and the replacement was completed in just a few hours. The prefabricated components adopted by the abutment comprise an H-shaped steel pile, a prefabricated wing wall component, a body component and a cap component. The abutment body and the steel pile are connected into a whole by welding. In 2017, the first domestic fabricated abutment construction is completed on the Shanghai S7 road, the abutment is about 14 meters long and weighs more than 200 tons, the prefabricated abutment cap and the pile foundation are connected in a profile steel slot type mode, the connection mode has better construction error tolerance, and the construction of the abutment can be completed in only 2 hours. On the whole, the application and research of the assembled abutment at home and abroad are less, and meanwhile, the prefabricated abutment is an integral prefabricated component, so that the hoisting weight is large, and the construction difficulty is high.
The utility model has the following contents:
the utility model aims to solve the technical problem that a component is light-duty, installation convenience, the fast novel highway assembled bridge platform of construction speed are provided.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize: an assembled bridge platform for expressway comprises
The prefabricated hat beam comprises a prefabricated hat beam A section and a prefabricated hat beam B section which are horizontally arranged, and asphalt floc is filled at the joint of the prefabricated hat beam A section and the prefabricated hat beam B section, wherein first prefabricated stop blocks are arranged at the front ends of the prefabricated hat beam A section and the prefabricated hat beam B section, and a second prefabricated stop block is longitudinally arranged on the upper surface of the right end of the prefabricated hat beam A section;
the prefabricated back wall is arranged in the first prefabricated blocking block;
the prefabricated earwall is arranged in the second prefabricated baffle block;
the prefabricated PRC tubular pile, prefabricated PRC tubular pile equidistant setting is in prefabricated cap roof beam bottom.
Furthermore, first prefabricated dog is including setting up first locating part and the second locating part at prefabricated cap roof beam upper surface front end relatively respectively, form the recess between first locating part and the second locating part, and be located inboard second locating part middle part and be equipped with the fracture, the fracture corresponds outward prefabricated roof beam cap B section upper surface is provided with the support stone underlay.
Furthermore, prefabricated back wall is including setting up wall body in the first prefabricated baffle, the wall body back is provided with the sand grip along long limit direction.
Furthermore, a wet joint is reserved between the prefabricated back wall and the prefabricated ear wall.
Furthermore, the prefabricated earwall comprises an earwall body and a fixture block arranged at the front end of the earwall body, the fixture block is arranged in the second prefabricated stop block, the length of the fixture block is the same as the width of the A section of the prefabricated cap beam, and high-strength non-shrinkage cement grouting material is filled between the fixture block and the second prefabricated stop block.
Further, the bottom of prefabricated cap roof beam A section and prefabricated cap roof beam B section is provided with two preformed holes respectively, prefabricated PRC tubular pile all installs in the preformed hole.
The construction method of the novel highway assembled bridge abutment is carried out according to the following steps:
step (1): the method comprises the following steps of performing on-site construction of the prefabricated PRC tubular pile by adopting a hammering method or a middle digging method, accurately positioning, and ensuring that the plane center error of the prefabricated tubular pile is less than or equal to 1.5cm and the verticality is within 0.2 percent;
step (2): accurately installing the A section of the prefabricated cap beam, and pouring C40 shrinkage-free concrete in the reserved hole to complete the connection with the prefabricated PRC tubular pile;
and (3): accurately installing the B sections of the prefabricated hat beams, pouring C40 non-shrinkage concrete in the reserved holes to complete the connection with the prefabricated PRC tubular piles, and filling asphalt floc in gaps among the A, B sections of the prefabricated hat beams;
and (4): mounting the prefabricated back wall, accurately positioning, ensuring that the prefabricated back wall is accurately arranged in the middle of a groove formed by the prefabricated stop block, and pouring high-strength non-shrinkage cement grouting material to complete connection;
and (5): the prefabricated earwall of installation, accurate positioning guarantees that prefabricated earwall accuracy is settled in the middle of the recess that prefabricated dog formed to pour the no shrink cement grout material of excelling in and wet seam completion is connected.
The utility model has the advantages that: the invention creates a brand new highway assembly type bridge abutment by improving the traditional cast-in-place bridge abutment and combining the characteristics of a highway, is generally suitable for newly building and reconstructing medium and small span bridges in the engineering, and is particularly suitable for 15m, 20m and 25m assembly type light T-beam bridges, 30m span assembly type prestressed concrete box girders and 35m span steel plate combined beam bridges, can obviously improve the construction progress and the construction quality, simultaneously reduces the influence of the construction on the existing traffic, has good technical and economic advantages, and is a highway bridge abutment form easy to popularize.
The prefabricated cap beam is transversely divided into two sections by the brand new highway assembled abutment, the prefabricated ear wall, the prefabricated back wall and the prefabricated cap beam are prefabricated separately, the prefabricated components are light, the transportation and installation are facilitated, the construction speed is high, the engineering quality is high, and the industrialized construction technology of the abutment is realized in all directions; the prefabricated PRC tubular pile is adopted to replace the traditional cast-in-place pile foundation, the construction speed is high, and meanwhile, the construction cost is effectively reduced.
The brand-new highway assembly type bridge deck conforms to the characteristics of industrial construction, has design standardization, production industrialization and assembly mechanization, changes the traditional construction mode, conforms to the national push assembly policy, has the advantages of energy conservation and environmental protection, and is the development direction and trend of the future construction industry.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is the installation schematic diagram of the prefabricated ear wall and the prefabricated hat beam of the utility model
FIG. 3 is a schematic view of the installation of the prefabricated back wall and the prefabricated hat beam of the present invention;
FIG. 4 is a schematic view of the installation of the prefabricated back wall and the prefabricated hat beam of the present invention;
FIG. 5 is a schematic view of the connection between the ear wall and the prefabricated hat beam;
fig. 6 is a schematic view of the connection between the prefabricated PRC tubular pile and the prefabricated cap beam of the present invention;
number in the figure: 1-prefabricated earwall and 11-earwall; 12-a fixture block; 2-prefabricating a back wall and 21-a wall body; 22-raised lines; 3-prefabricating a cap beam section A, 4-prefabricating a cap beam section B, 5-wet joints and 6-first prefabricating stop blocks; 61-a first stop; 62-a second stop; 63-second prefabricated stop blocks, 7-prefabricated PRC tubular piles, 8-asphalt floc, 9-support base cushion stones, 10-high-strength non-shrinkage cement grouting material, 101-C40 micro-expansion concrete, 102-reserved holes and 13-anchoring reinforcing steel bars.
The specific implementation mode is as follows:
in order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand and understand, the present invention is further explained by combining with the specific drawings.
It will be understood that when an element is referred to as being "secured to" another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only and do not represent the only embodiments.
Example 1
As shown in figures 1 to 6, the utility model provides an assembled bridge deck for expressway, include
The cap beam is prefabricated, the prefabricated cap beam comprises a prefabricated cap beam A section 3 and a prefabricated cap beam B section 4 which are horizontally arranged, asphalt floc 8 is filled at the joint of the prefabricated cap beam A section 3 and the prefabricated cap beam B section 4, first prefabricated stoppers 6 are arranged at the front ends of the prefabricated cap beam A section 3 and the prefabricated cap beam B section 4, and second prefabricated stoppers 63 are longitudinally arranged on the upper surface of the right end of the prefabricated cap beam A section 3, in the embodiment, the prefabricated cap beam A section 3 is 6.55m long, 1.73m wide and 1.2-1.4 m thick, C40 concrete is adopted, the prefabricated cap beam B section 4 is 6.36m long, 1.73m wide and 1.2-1.4 m thick, and C40 concrete is adopted;
the prefabricated back wall 2 is arranged in the first prefabricated stop block 6;
the prefabricated earwall 1 is arranged in the second prefabricated stop block 63; the prefabricated ear wall is 1 cm thick and is made of C40 micro-expansion concrete and is arranged in the middle of the groove formed by the second prefabricated stop block 63
And (3) prefabricating PRC (prestressed concrete composite) tubular piles 7, wherein the prefabricated PRC tubular piles 7 are arranged at the bottoms of the prefabricated cap beams at equal intervals.
The first prefabricated stop block 6 comprises a first limiting part 61 and a second limiting part 62 which are respectively and oppositely arranged at the front end of the upper surface of the prefabricated hat beam, a groove is formed between the first limiting part 61 and the second limiting part 62, a fracture is arranged in the middle of the second limiting part 62 positioned on the inner side to avoid collision with the main beam, and a support cushion stone 9 is arranged on the upper surface of the section B of the prefabricated hat beam corresponding to the fracture.
Prefabricated back wall 2 is provided with sand grip 22 along long limit direction including setting up the wall body 21 in first prefabricated dog 6 at the wall body 21 back, places after 2 accurate positioning of prefabricated back wall between the recess that the dog formed on the prefabricated hat beam to pour high-strength no shrink cement and irritate the material.
And a wet joint 5 is reserved between the prefabricated back wall 2 and the prefabricated ear wall 1, the wet joint 5 is 30cm, and the prefabricated back wall 1 and the prefabricated ear wall 2 are connected by welding reinforcing steel bars in the wet joint 5.
The prefabricated earwall 1 comprises an earwall body 11 and a fixture block 12 arranged at the front end of the earwall body 11, the fixture block 12 is arranged in a second prefabricated stop block 63, the length of the fixture block 12 is the same as the width of the prefabricated cap beam A section 3, and a high-strength non-shrinkage cement grouting material 10 is filled between the fixture block 12 and the second prefabricated stop block 63.
The bottom of the prefabricated hat beam A section 3 and the bottom of the prefabricated hat beam B section 4 are respectively provided with two reserved holes 102, the prefabricated PRC tubular piles 7 are all installed in the reserved holes 102, the two diameters of the reserved holes 102 are 106cm in the embodiment, the diameter of the prefabricated PRC tubular piles is 100cm, the prefabricated PRC tubular piles are made of C40 micro-expansion concrete, the prefabricated hat beams and the prefabricated PRC tubular piles 7 penetrate into the reserved holes 102 of the prefabricated hat beams through C40 micro-expansion concrete (including anchoring reinforcing steel bars 13 and having the length of 3cm), and concrete is poured for connection.
The construction method of the brand-new highway assembled bridge deck is carried out according to the following steps:
step (1): the method comprises the following steps of performing on-site construction on the prefabricated PRC tubular pile 7 by adopting a hammering method or a middle digging method, accurately positioning, and ensuring that the plane center error of the prefabricated PRC tubular pile 7 is less than or equal to 1.5cm and the verticality is within 0.2 percent;
step (2): accurately installing the A section 3 of the prefabricated cap beam, and pouring C40 concrete in the reserved hole 102 to complete the connection with the prefabricated PRC tubular pile 7;
and (3): accurately installing the B section 4 of the prefabricated hat beam, pouring C40 concrete in the reserved hole 102 to complete the connection with the prefabricated PRC tubular pile 7, and filling asphalt catkins 8 in gaps of the A, B sections of the prefabricated hat beam;
and (4): installing the prefabricated back wall 2, accurately positioning to ensure that the prefabricated back wall 2 is accurately arranged in the middle of a groove formed by the prefabricated stop block, and pouring high-strength non-shrinkage cement grouting material to complete connection;
and (5): the prefabricated earwall 1 is installed and accurately positioned, the prefabricated earwall 1 is accurately arranged in the middle of a groove formed by the prefabricated stop block, high-strength non-shrinkage cement grouting material is poured, and wet joints are connected
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. An assembled bridge abutment for a highway is characterized by comprising
The prefabricated hat beam comprises a prefabricated hat beam A section (3) and a prefabricated hat beam B section (4) which are horizontally arranged, the joint of the prefabricated hat beam A section (3) and the prefabricated hat beam B section (4) is filled with asphalt catkins (8), first prefabricated stop blocks (6) are arranged at the front ends of the prefabricated hat beam A section (3) and the prefabricated hat beam B section (4), and second prefabricated stop blocks (63) are longitudinally arranged on the upper surface of the right end of the prefabricated hat beam A section (3);
the prefabricated back wall (2), the prefabricated back wall (2) is arranged in the first prefabricated stop block (6);
the prefabricated ear wall (1), the prefabricated ear wall (1) is arranged in the second prefabricated stop block (63);
prefabricated PRC tubular pile (7), prefabricated PRC tubular pile (7) equidistant setting is in prefabricated cap roof beam bottom.
2. The highway assembled bridge deck according to claim 1, wherein the first prefabricated stop block (6) comprises a first limiting member (61) and a second limiting member (62) which are oppositely arranged at the front end of the upper surface of the prefabricated cap beam respectively, a groove is formed between the first limiting member (61) and the second limiting member (62), a fracture is arranged in the middle of the second limiting member (62) positioned on the inner side, and a support base stone (9) is arranged on the upper surface of the B section (4) of the prefabricated cap beam outside the fracture.
3. An assembled highway abutment according to claim 1, wherein the prefabricated back wall (2) comprises a wall body (21) arranged in the first prefabricated stop block (6), and the back surface of the wall body (21) is provided with a convex strip (22) along the long edge direction.
4. A highway assembled bridge according to claim 1 characterized in that a wet joint (5) is left between the prefabricated ear wall (1) and the prefabricated back wall (2).
5. The highway assembled bridge according to claim 1, wherein the prefabricated earwall (1) comprises an earwall body (11) and a fixture block (12) arranged at the front end of the earwall body (11), the fixture block (12) is arranged in the second prefabricated block (63), the length of the fixture block (12) is the same as the width of the prefabricated hat beam A section (3), and high-strength non-shrinkage cement grouting material (10) is filled between the fixture block (12) and the second prefabricated block (63).
6. The highway assembled bridge deck according to claim 1, wherein the bottoms of the prefabricated cap beam A section (3) and the prefabricated cap beam B section (4) are respectively provided with two reserved holes (102), and the prefabricated PRC tubular piles (7) are installed in the reserved holes (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173922.0U CN209907183U (en) | 2019-01-31 | 2019-01-31 | Highway assembled abutment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920173922.0U CN209907183U (en) | 2019-01-31 | 2019-01-31 | Highway assembled abutment |
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| CN209907183U true CN209907183U (en) | 2020-01-07 |
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| CN201920173922.0U Active CN209907183U (en) | 2019-01-31 | 2019-01-31 | Highway assembled abutment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576197A (en) * | 2020-05-08 | 2020-08-25 | 中冶南方城市建设工程技术有限公司 | Assembled bridge abutment capable of relieving bumping at bridge head and construction method thereof |
| CN111705634A (en) * | 2020-07-15 | 2020-09-25 | 北京市市政专业设计院股份公司 | Assembled bridge platform |
| CN111827097A (en) * | 2020-07-06 | 2020-10-27 | 上海崇明水利工程有限公司 | Concatenation formula reinforced concrete bridge abutment structure |
| CN114182640A (en) * | 2021-12-29 | 2022-03-15 | 安徽省公路桥梁工程有限公司 | Prefabricated installation device for abutment construction and use method thereof |
-
2019
- 2019-01-31 CN CN201920173922.0U patent/CN209907183U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111576197A (en) * | 2020-05-08 | 2020-08-25 | 中冶南方城市建设工程技术有限公司 | Assembled bridge abutment capable of relieving bumping at bridge head and construction method thereof |
| CN111576197B (en) * | 2020-05-08 | 2021-12-07 | 中冶南方城市建设工程技术有限公司 | Assembled bridge abutment capable of relieving bumping at bridge head and construction method thereof |
| CN111827097A (en) * | 2020-07-06 | 2020-10-27 | 上海崇明水利工程有限公司 | Concatenation formula reinforced concrete bridge abutment structure |
| CN111827097B (en) * | 2020-07-06 | 2022-04-05 | 上海崇明水利工程有限公司 | Concatenation formula reinforced concrete bridge abutment structure |
| CN111705634A (en) * | 2020-07-15 | 2020-09-25 | 北京市市政专业设计院股份公司 | Assembled bridge platform |
| CN114182640A (en) * | 2021-12-29 | 2022-03-15 | 安徽省公路桥梁工程有限公司 | Prefabricated installation device for abutment construction and use method thereof |
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