CN211171581U - Pier is assembled in railway prefabrication - Google Patents
Pier is assembled in railway prefabrication Download PDFInfo
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- CN211171581U CN211171581U CN201921493798.2U CN201921493798U CN211171581U CN 211171581 U CN211171581 U CN 211171581U CN 201921493798 U CN201921493798 U CN 201921493798U CN 211171581 U CN211171581 U CN 211171581U
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- 238000009417 prefabrication Methods 0.000 title abstract description 8
- 239000004567 concrete Substances 0.000 claims abstract description 119
- 229910000831 Steel Inorganic materials 0.000 claims description 55
- 239000010959 steel Substances 0.000 claims description 55
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 6
- 238000005336 cracking Methods 0.000 claims description 5
- 239000007769 metal material Substances 0.000 claims description 3
- 239000011376 self-consolidating concrete Substances 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 35
- 230000005484 gravity Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 10
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 239000011440 grout Substances 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005056 compaction Methods 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
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Abstract
The embodiment of the application relates to the technical field of railway bridges, in particular to a bridge pier is assembled in railway prefabrication. The railway prefabricated assembled pier comprises a foundation, a capping beam and at least two concrete pier columns supported between the foundation and the capping beam in parallel; the capping beam and the concrete pier stud are both prefabricated parts; one side surface of the cover beam is provided with a contact net upright column foundation; the bottom of the concrete pier is poured on the top of the foundation, and the cover beam is poured on the top of the concrete pier. The railway prefabricated assembled pier has the characteristics of light weight of prefabricated components, easiness in assembling on site and reliability in connection, can ensure structural rigidity, can meet the requirements of light weight and easiness in assembling, and can solve the problems of difficulty in transportation, low construction speed and long construction period of the existing gravity type pier caused by large size of pier body components.
Description
Technical Field
The application relates to the technical field of railway bridges, in particular to a bridge pier is assembled in railway prefabrication.
Background
The railway bridge construction always inherits the development of 'industrialized construction and rapid construction', the railway engineering construction in a new period conforms to the development requirements of the era, the national green construction concept is met, the environment is protected to the maximum extent, the pollution is reduced in the construction, and the current situation of labor force shortage is relieved while the construction progress is accelerated.
The railway bridge needs to meet the requirement of train ride comfort, and the pier body needs to be guaranteed to have certain rigidity, so that the gravity type pier is mostly adopted in the construction process, the gravity type pier is constructed by adopting a prefabricated assembly technology, and the pier body component is large in size, so that the defects of difficulty in transportation, low construction speed and long construction period are caused.
Disclosure of Invention
The embodiment of the application provides a pier is assembled in railway prefabrication, and this pier is assembled in railway prefabrication has prefabricated component light in weight, the on-the-spot easy characteristics of assembling, connect reliably, can guarantee structural rigidity, can satisfy the requirement of light-dutyization, easy assembly again, can solve the problem of transportation difficulty, construction speed slow and construction cycle length that current gravity type pier brought because of pier shaft component size is big.
The embodiment of the application provides a railway prefabricated assembled pier, which comprises a foundation, a bent cap and at least two concrete pier columns, wherein the concrete pier columns are supported between the foundation and the bent cap side by side;
the capping beam and the concrete pier stud are both prefabricated parts;
one side surface of the cover beam is provided with a contact net upright column foundation;
the bottom of the concrete pier is poured on the top of the foundation, and the cover beam is poured on the top of the concrete pier.
Preferably, the bottom of the concrete pier is provided with convex core concrete and a plurality of pier bottom exposed longitudinal steel bars surrounding the periphery of the core concrete;
the foundation is provided with bearing platform embedded steel bars which protrude out of the top surface and correspond to the exposed longitudinal steel bars at the bottom of the pier stud one by one;
the exposed longitudinal steel bars at the bottom of the pier column are connected with the corresponding embedded steel bars of the bearing platform through taper sleeve locking joints;
and self-compacting concrete is poured on the periphery of the core concrete, and a pier bottom used for anchoring the exposed longitudinal steel bars at the bottom of the pier column and the embedded steel bars of the bearing platform is formed.
Preferably, grouting corrugated pipes which are in one-to-one correspondence with the concrete piers and penetrate through the capping beam in height are pre-buried in the capping beam;
a plurality of pier top exposed longitudinal steel bars protruding out of the top surface are exposed out of the concrete pier;
and the pier stud top exposed longitudinal steel bars extend into the grouting corrugated pipe and are anchored in concrete in the grouting corrugated pipe.
Preferably, the concrete poured in the grouting corrugated pipe is micro-expansion concrete.
Preferably, an anti-cracking reinforcing steel bar mesh sheet for protecting exposed longitudinal reinforcing steel bars at the bottom of the pier column and embedded reinforcing steel bars of the bearing platform is poured in the pier bottom.
Preferably, the cross section shape of the concrete pier column and the cross section shape of the pier bottom are both square, the side length of the concrete pier column is 1.2-1.6 m, and the side length of the pier bottom is 1.6-2 m.
Preferably, the first and second electrodes are formed of a metal,
the protruding height of the core concrete is 80-100 cm, and the protruding height of the exposed longitudinal steel bar at the bottom of the pier column is 30-50 cm.
Preferably, the grouting corrugated pipe is a corrugated pipe made of a metal material.
Preferably, the top surface of the capping beam is provided with a supporting rim.
Preferably, an adjusting cushion layer is further arranged between the cover beam and the concrete pier stud;
the foundation includes a cap and a pile for supporting the cap.
Adopt the prefabricated pier of assembling of railway that provides in this application embodiment, have following beneficial effect:
both the bent cap and the concrete pier column in the railway prefabricated and assembled pier adopt prefabricated parts, the bent cap and the concrete pier column can be prepared in advance before site construction, and the prefabricated bent cap and the prefabricated concrete pier column only need to be assembled and fixed on site during construction; by adopting the railway prefabricated assembled pier, the preparation mode is changed from cast-in-place in the prior art to prefabricated assembly, the construction speed and the construction efficiency are improved, and the construction period is shortened; simultaneously, adopt two at least concrete pier stud supporting bent cap that set up side by side on the basis, replace current gravity type pier through adopting two or more concrete pier studs, can reduce the volume and the weight of concrete pier stud, be convenient for the transportation and the hoist and mount after the prefabrication.
To sum up, the characteristics that have prefabricated component light in weight, the scene is easily assembled, connect reliably of this application embodiment can guarantee structural rigidity, can satisfy the requirement of light-dutyization, easy assembly again, can solve the problem that current gravity type pier is difficult, construction speed is slow and the construction cycle is long because of the big transportation difficulty that brings of pier shaft component size.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a prefabricated railway assembled pier provided by an embodiment of the application;
fig. 2 is a schematic view of an a-direction structure of the railway prefabricated assembly pier provided in fig. 1;
FIG. 3 is a schematic sectional structure view of the direction B-B of the railway prefabricated assembly pier provided in FIG. 1;
fig. 4 is a schematic sectional structure view of the prefabricated railway assembled pier in the direction from C to C provided in fig. 2.
Reference numerals:
1-a base; 2-a capping beam; 3-concrete pier stud; 4-supporting a bolster;
11-a cushion cap; 12-piling; 13-embedding steel bars in a bearing platform;
21-a contact net upright column foundation; 22-grouting corrugated pipe;
31-pier bottom; 32-exposed longitudinal steel bars at the top of the pier stud;
33-core concrete; 34-longitudinal steel bars are exposed at the bottoms of the piers.
Detailed Description
In order to make the technical solutions and advantages of the embodiments of the present application more apparent, the following further detailed description of the exemplary embodiments of the present application with reference to the accompanying drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not exhaustive of all embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The prefabricated pier of assembling of railway that this application embodiment provided is mainly used in the construction process of railway bridge roof beam.
As shown in the structures of fig. 1 and 2, the railway prefabricated assembly pier comprises a foundation 1, a capping beam 2 and at least two concrete pier columns 3 supported between the foundation 1 and the capping beam 2 side by side; the foundation 1 can be a pile foundation, and when the foundation 1 is the pile foundation, the foundation 1 comprises a bearing platform 11 and piles 12 for supporting the bearing platform 11; in fig. 1, the foundation 1 includes four piles 12 distributed in a matrix for supporting the bearing platform 11, which is only illustrated in fig. 1 and does not constitute a limitation on the structure, that is, the number and the arrangement positions of the piles 12 constituting the pile foundation are not fixed and can be arranged according to actual needs; meanwhile, in the structures shown in fig. 1, 3 and 4, a structure in which two concrete pillars 3 are provided between the foundation 1 and the capping beam 2 is taken as an example for explanation, and no limitation is imposed on the number of the concrete pillars 3, and in an actual construction process of a bridge pier, not only two concrete pillars 3, but also three, four, and other concrete pillars 3 may be provided;
both the bent cap 2 and the concrete pier 3 are prefabricated parts; the top surface of the bent cap 2 can be provided with a supporting cushion 4; both the bent cap 2 and the concrete pier 3 can be prepared in advance, and during construction, the prefabricated bent cap 2 and the prefabricated concrete pier 3 can be directly transported to a construction site for assembly and use, so that the construction speed of the bridge can be improved conveniently;
one side surface of the cover beam 2 is provided with a contact net upright column foundation 21; as shown in the structure of fig. 1, an integral overhead line system upright column foundation 21 is prefabricated on one side surface of a cover beam 2, and the overhead line system upright column foundation 21 is used for installing an upright column for supporting an overhead line system; the integrated overhead line system upright column foundation 21 is arranged on one side of the bent cap 2, so that the overhead line system upright column foundation 21 for installing an overhead line system has the characteristics of high structural strength and reasonable structure;
the bottom of the concrete pier stud 3 is poured on the top of the foundation 1, and the bent cap 2 is poured on the top of the concrete pier stud 3; as shown in the structure of fig. 4, the concrete pier stud 3 and the capping beam 2 are both prefabricated parts, and when the pier is assembled by adopting the concrete pier stud 3 and the capping beam 2, the concrete pier stud 3 and the capping beam 2 need to be fixed on the foundation 1, and the structural strength and rigidity of the assembled pier need to be ensured; concrete pier column 3's bottom and foundation 1 between through self-compaction concrete placement structure as an organic whole, concrete pier column 3's top and bent cap 2 between through little expansive concrete placement structure as an organic whole.
Both the bent cap 2 and the concrete pier stud 3 in the railway prefabricated and assembled pier adopt prefabricated parts, the bent cap 2 and the concrete pier stud 3 can be prepared in advance before site construction, and the prefabricated bent cap 2 and the prefabricated concrete pier stud 3 are transported to the site for site pouring and fixing during construction; by adopting the railway prefabricated assembled pier, the preparation mode is changed from cast-in-place in the prior art to prefabricated assembly, the construction speed and the construction efficiency are improved, and the construction period is shortened; simultaneously, adopt two at least concrete pier stud 3 support bent cap 2 that set up side by side on basis 1, replace current gravity type pier through adopting two or more concrete pier stud 3, can reduce the volume and the weight of concrete pier stud 3, be convenient for the transportation and the hoist and mount after the prefabrication.
Therefore, the railway prefabricated assembled pier has the characteristics of light weight of prefabricated parts, easiness in assembling on site and reliability in connection, not only can the structural rigidity be guaranteed, but also the requirements of light weight and easiness in assembling can be met, and the problems of difficulty in transportation, low construction speed and long construction period of the existing gravity type pier caused by large size of pier body components can be solved.
When the prefabricated spliced railway pier is installed on the foundation 1, the bottom of the concrete pier 3 is provided with convex core concrete 33 and a plurality of pier bottom exposed longitudinal steel bars 34 surrounding the periphery of the core concrete 33; as shown in the structure of fig. 4, a section of core concrete 33 protrudes from the bottom of the concrete pier 3, and the protruding height of the core concrete 33 may be 80cm to 100cm, for example: 80cm, 85cm, 90cm, 95cm, 100 cm; and pier column bottom exposed longitudinal steel bars 34 are exposed at the periphery of the core concrete 33, the exposed length of the pier column bottom exposed longitudinal steel bars 34 can be 30 cm-50 cm, such as: 30cm, 35cm, 40cm, 45cm, 50 cm;
the foundation 1 is provided with bearing platform embedded steel bars 13 which protrude from the top surface and correspond to the exposed longitudinal steel bars 34 at the bottom of the pier column one by one; as shown in the structure of fig. 4, the top of the foundation 1 is provided with bearing platform embedded steel bars 13 protruding from the top surface, and the bearing platform embedded steel bars 13 correspond to the exposed longitudinal steel bars 34 at the bottom of the pier column one by one; the pier bottom exposed longitudinal steel bars 34 are connected with the corresponding bearing platform embedded steel bars 13 through taper sleeve locking joints, namely, each pier bottom exposed longitudinal steel bar 34 is connected with the corresponding bearing platform embedded steel bar 13 on the foundation 1 through a taper sleeve locking joint, so that the concrete pier 3 and the steel bars on the foundation 1 are connected into a whole; and self-compacting concrete is poured on the periphery of the core concrete 33 to form the integrally prefabricated pier column with the embedded steel bars of the exposed longitudinal steel bar bearing platform at the bottom of the pier column.
As shown in the structure of fig. 3, the cross section of the concrete pier 3 may be square, and the side length of the concrete pier 3 is 1.2m to 1.6m, such as: 1.2m, 1.3m, 1.4m, 1.5m and 1.6m, and the height of the concrete pier column 3 can be prefabricated according to actual needs; the concrete pier stud 3 can be square in cross section with a side length of the pier bottom 31, and the side length of the pier bottom 31 is 1.6-2 m, such as: 1.6m, 1.7m, 1.8m, 1.9m and 2.0m, wherein the height of the pier bottom 31 is equal to or greater than the protruding height of the core concrete 33, so that the core concrete 33 can be poured inside when the pier bottom 31 is formed by pouring, but the core concrete 33 cannot bear the load only through the core concrete 33 because the pouring height of the pier bottom 31 is low, and the height of the pier bottom 31 can be 80 cm-120 cm, such as: 80cm, 85cm, 90cm, 95cm, 100cm, 110cm, 120 cm.
In the process of splicing and connecting the foundation 1 and the concrete pier stud 3 of the railway prefabricated spliced pier, the exposed longitudinal steel bars 34 at the bottom of the pier stud are connected with the bearing platform embedded steel bars 13 of the foundation 1 through the taper sleeve locking joint, so that the reliability of connection of joint positions between the exposed longitudinal steel bars 34 at the bottom of the pier stud and the bearing platform embedded steel bars 13 is ensured, and the connection process is convenient and simple; meanwhile, the core concrete 33, the exposed longitudinal steel bars 34 at the bottom of the pier column and the embedded steel bars 13 of the bearing platform are poured into a whole through the concrete poured at the bottom of the concrete pier column 3, and a prefabricated pier column is formed, so that the bottom of the concrete pier column 3 and the foundation 1 are poured into a whole, the assembling speed is improved, the assembling time is saved, and the connecting strength and the rigidity between the concrete pier column 3 and the foundation 1 can be ensured.
In the process of assembling the railway prefabricated assembled pier with the bent cap 2, the railway prefabricated assembled pier can be fixedly connected in the following installation mode, and grouting corrugated pipes 22 which are in one-to-one correspondence with each concrete pier 3 and penetrate through the height of the bent cap 2 are pre-embedded in the bent cap 2; as shown in the structure of fig. 4, in the process of prefabricating the bent cap 2, grouting corrugated pipes 22 are pre-embedded in the bent cap 2, the grouting corrugated pipes 22 are hollow tubular structures, and the number and the positions of the grouting corrugated pipes 22 correspond to those of the concrete piers 3 one by one, that is, when two concrete piers 3 are arranged between the foundation 1 and the bent cap 2, two grouting corrugated pipes 22 need to be pre-embedded in the bent cap 2, and correspondingly, when three or more concrete piers 3 are arranged between the foundation 1 and the bent cap 2, three or more grouting corrugated pipes 22 need to be pre-embedded in the bent cap 2; the grouting bellows 22 may be a bellows made of a metal material, such as: iron corrugated pipe and stainless steel corrugated pipe.
A plurality of pier top exposed longitudinal steel bars 32 protruding out of the top surface are exposed out of the concrete pier 3; as shown in the structure of fig. 4, the top of the concrete pier 3 is provided with a plurality of pier top exposed longitudinal steel bars 32 protruding from the top surface, and the pier top exposed longitudinal steel bars 32 can be integrated with the longitudinal steel bars in the concrete pier 3;
the pier top exposed longitudinal steel bar 32 extends into the grouting corrugated pipe 22 and is poured into the concrete in the grouting corrugated pipe 22. As shown in the structure of fig. 4, the capping beam 2 is supported on the concrete pier stud 3, the grouting corrugated pipe 22 corresponds to the concrete pier stud 3, and in the assembling process, after the capping beam 2 is hung on the top of the concrete pier stud 3, the exposed pier stud top longitudinal reinforcement 32 of the concrete pier stud 3 extends into the grouting corrugated pipe 22, then concrete is poured into the grouting corrugated pipe 22, and the exposed pier stud top longitudinal reinforcement 32 of the concrete pier stud 3 is anchored in the grouting corrugated pipe 22, so that the capping beam 2 and the concrete pier stud 3 are poured into an integrated structure. The concrete poured into the grout bellows 22 may be micro-expansive concrete.
Above-mentioned bent cap 2 is connected through the mode of grout bellows between the concrete pier stud 3, through pouring the concrete in grout bellows 22, exposes longitudinal reinforcement 32 anchor with the pier stud top, has not only realized assembling fast between bent cap 2 and the concrete pier stud 3 and is connected, but also can make the connection structure between bent cap 2 and the concrete pier stud 3 satisfy the requirement of intensity, rigidity.
In the process of assembling the railway prefabricated assembled pier, in order to improve the connection reliability between the concrete pier column 3 and the foundation 1 and prevent concrete from cracking, the longitudinal steel bar bearing platform embedded steel bars exposed at the bottom of the pier column in the pier bottom 31 are provided with anti-cracking steel bar mesh sheets, and the anti-cracking steel bar mesh sheets can be arranged on the outer peripheral sides of the longitudinal steel bars 34 exposed at the bottom of the pier column and the bearing platform embedded steel bars 13. In addition, in order to facilitate the installation between the bent cap 2 and the concrete pier 3, an adjusting cushion layer can be arranged between the bent cap 2 and the concrete pier 3.
By adopting the structure and the assembling method, the volume and the weight of the concrete pier column 3 can be reduced, the assembling speed and the assembling efficiency among all the parts can be improved, the structural strength and the rigidity can be ensured, the requirements of light weight and easy assembly can be met, and the problems of difficult transportation, low construction speed and long construction period of the existing gravity type pier are solved.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (10)
1. The railway prefabricated assembled pier comprises a foundation and a bent cap and is characterized by further comprising at least two concrete pier columns supported between the foundation and the bent cap side by side;
the capping beam and the concrete pier stud are both prefabricated parts;
one side surface of the cover beam is provided with a contact net upright column foundation;
the bottom of the concrete pier is poured on the top of the foundation, and the cover beam is poured on the top of the concrete pier.
2. The railway prefabricated spliced pier of claim 1, wherein the bottom of the concrete pier is provided with convex core concrete and a plurality of pier bottom exposed longitudinal steel bars surrounding the periphery of the core concrete;
the foundation is provided with bearing platform embedded steel bars which protrude out of the top surface and correspond to the exposed longitudinal steel bars at the bottom of the pier stud one by one;
the exposed longitudinal steel bars at the bottom of the pier column are connected with the corresponding embedded steel bars of the bearing platform through taper sleeve locking joints;
and self-compacting concrete is poured on the periphery of the core concrete, and a pier bottom used for anchoring the exposed longitudinal steel bars at the bottom of the pier column and the embedded steel bars of the bearing platform is formed.
3. The railway prefabricated spliced pier of claim 2, wherein grouting corrugated pipes which correspond to the concrete piers one by one and penetrate the height of the bent cap are embedded in the bent cap;
a plurality of pier top exposed longitudinal steel bars protruding out of the top surface are exposed out of the concrete pier;
and the pier stud top exposed longitudinal steel bars extend into the grouting corrugated pipe and are anchored in concrete in the grouting corrugated pipe.
4. The railway prefabricated spliced pier of claim 3, wherein the concrete poured in the grouting corrugated pipe is micro-expansion concrete.
5. The railway prefabricated assembled pier of claim 4, wherein an anti-cracking reinforcing steel mesh for protecting exposed longitudinal reinforcing steel bars at the bottom of the pier and embedded reinforcing steel bars of a bearing platform is poured in the pier bottom.
6. The railway prefabricated spliced pier of claim 5, wherein the cross section of the concrete pier column and the cross section of the bottom of the pier are both square, the side length of the concrete pier column is 1.2-1.6 m, and the side length of the bottom of the pier is 1.6-2 m.
7. The railway prefabricated spliced pier of claim 6, wherein the protruding height of the core concrete is 80-100 cm, and the protruding height of the exposed longitudinal steel bars at the bottom of the pier column is 30-50 cm.
8. The railway prefabricated spliced pier of claim 7, wherein the grouting corrugated pipe is a corrugated pipe made of a metal material.
9. The railway precast spliced pier of any one of claims 1 to 8, wherein the top surface of the cap girder is provided with a support bolster.
10. The railway prefabricated spliced pier of claim 9, wherein an adjusting cushion layer is further arranged between the capping beam and the concrete pier column;
the foundation includes a cap and a pile for supporting the cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493798.2U CN211171581U (en) | 2019-09-09 | 2019-09-09 | Pier is assembled in railway prefabrication |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921493798.2U CN211171581U (en) | 2019-09-09 | 2019-09-09 | Pier is assembled in railway prefabrication |
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| CN211171581U true CN211171581U (en) | 2020-08-04 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322795A (en) * | 2021-06-07 | 2021-08-31 | 中铁第四勘察设计院集团有限公司 | Double-column type prefabricated assembled pier and construction method |
| CN115652798A (en) * | 2022-11-07 | 2023-01-31 | 东南大学 | Fabrication method and bridge pier of wet joint prefabricated bridge pier based on steel bar lap joint |
-
2019
- 2019-09-09 CN CN201921493798.2U patent/CN211171581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113322795A (en) * | 2021-06-07 | 2021-08-31 | 中铁第四勘察设计院集团有限公司 | Double-column type prefabricated assembled pier and construction method |
| CN115652798A (en) * | 2022-11-07 | 2023-01-31 | 东南大学 | Fabrication method and bridge pier of wet joint prefabricated bridge pier based on steel bar lap joint |
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