CN113981822B - Pier stud hoop for capping beam molding convenient to dismantle - Google Patents
Pier stud hoop for capping beam molding convenient to dismantle Download PDFInfo
- Publication number
- CN113981822B CN113981822B CN202111138517.3A CN202111138517A CN113981822B CN 113981822 B CN113981822 B CN 113981822B CN 202111138517 A CN202111138517 A CN 202111138517A CN 113981822 B CN113981822 B CN 113981822B
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- Prior art keywords
- hoop
- spring
- hoops
- locking bolt
- pier stud
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- 238000000465 moulding Methods 0.000 title claims abstract description 16
- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 15
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 4
- 230000010485 coping Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 2
- 102100023170 Nuclear receptor subfamily 1 group D member 1 Human genes 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G17/00—Connecting or other auxiliary members for forms, falsework structures, or shutterings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pier stud hoop for capping beam molding, which is convenient to disassemble, and comprises a first hoop and a second hoop which are arranged on the pier stud for capping beam molding, wherein a certain pretightening force exists between the first hoop and the second hoop when the hoops are assembled under the arrangement of an installation seat, a spring and a locking bolt, so that the coaxiality of a third threaded hole and the first threaded hole is stronger, the locking bolt is convenient to quickly lock, when the hoops are disassembled, the force for ejecting and separating the hoops by utilizing multiple buffering is gradually reduced, the rebound force of the hoops is gradually reduced, the condition that the hoops are subjected to high-speed rebound to strike constructors or a moving platform is avoided, and particularly when the last locking bolt is disassembled, the spring also can play a certain pretightening force, so that the hoops are not separated from the pier stud instantaneously, the hoops are convenient for constructors to hold down, the force for ejecting and separating the hoops corresponds to the hoops, the deformation of the hoops is reduced, and the hoops are easier to repair and reuse after the hoops are disassembled.
Description
Technical Field
The invention belongs to the technical field of bridge foundation construction, and particularly relates to a pier stud hoop for cap beam molding, which is convenient to disassemble.
Background
After the anchor ear is fixed on the pier stud, a capping beam die-making platform is required to be additionally arranged, so that the auxiliary operation is convenient for constructors during capping beam die-making.
However, in the actual production process, after the construction is completed, constructors find that the anchor ear cannot be directly dismantled at high altitude, and the reason is as follows:
in order to obtain larger locking force, the inner diameter of the anchor ear is slightly smaller than the outer diameter of the pier stud, and when the locking bolt of the anchor ear is detached, the anchor ear can be ejected and separated instantaneously;
the space of the mobile platform which is used for carrying constructors and is convenient for the constructors to operate aloft is very small, the anchor ear is ejected at a high speed, and the constructors can effectively avoid flashing in the narrow space, so that the personal safety of the constructors is greatly threatened.
The existing solutions for avoiding the above situation are:
only one locking bolt is screwed, then the anchor ear is pushed to the ground from top to bottom along the pier stud, and then the last locking bolt is removed.
The dismantling mode is low in efficiency, the surface of the pier column can be scratched in the process that the anchor ear slides downwards along the pier column, and after the anchor ear is dismantled, constructors are required to repair the pier column for the second time, so that the labor intensity is quite high.
Disclosure of Invention
The invention aims to provide an pier stud hoop for capping beam molding, which is convenient to disassemble, so as to solve the problems in the background art.
In order to achieve the above purpose, the present invention provides the following technical solutions:
pier stud hoops for coping molding convenient to dismantle comprise a first hoop and a second hoop which are arranged on the pier stud for coping molding, one ends of the first hoop and the second hoop are hinged, one ends of the first hoop and the second hoop, which are far away from the hinge point, are provided with a plurality of transverse partition boards, a longitudinal mounting plate is arranged between the adjacent transverse partition boards, the mounting seat is arranged on the first hoop in one-to-one correspondence with the longitudinal mounting plate, the mounting seat is detachably connected with the first hoop, the first hoop and the second hoop are locked through a plurality of locking bolts in one-to-one correspondence with the mounting seat, springs are arranged on the outer sides of the locking bolts, and two ends of each spring are connected with the mounting seat and the second hoop respectively.
And a plurality of lifting lugs are arranged on the first hoop.
The first hoop and the second hoop are both provided with working platforms formed by welding a plurality of reinforcing steel bars.
The mounting seat is an L-shaped mounting seat, and rib plates are arranged on the L-shaped mounting seat.
The mounting seat is detachably connected with the diaphragm plate on the first hoop through a plurality of fixing bolts.
The elastic coefficients of the plurality of springs are sequentially reduced.
The beneficial effects of the invention are as follows:
1. under the arrangement of the mounting seat, the spring and the locking bolt, when the anchor ear is assembled with the pier stud, a certain pretightening force exists between the first hoop and the second hoop, so that the coaxiality of the third threaded hole and the first threaded hole is stronger, and the quick locking of the locking bolt is greatly facilitated;
when the anchor ear is dismantled, utilize a lot of buffering to launch the anchor ear with anchor ear and separate the power step by step reduce for anchor ear resilience force reduces step by step and avoids appearing too big elasticity and makes the anchor ear appear high-speed resilience striking constructor or moving platform's condition appear, especially when dismantling last lock bolt, the spring still can play certain pretightning force, makes the anchor ear can not separate with the pier stud in the twinkling of an eye, avoids anchor ear to slide down in the twinkling of an eye, makes things convenient for constructor loading and unloading anchor ear.
2. The elastic coefficients of the springs can be set according to experience, and the purpose is to enable the springs to correspond to the force of ejection separation, so that the deformation of the first hoop and the second hoop when each locking bolt is removed is reduced, the hoop is easy to repair and reuse after being removed, the service life of the hoop is prolonged, and meanwhile production cost is saved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is an enlarged schematic view of a portion of the invention at A in FIG. 1;
FIG. 4 is an enlarged partial schematic view of the present invention at B in FIG. 1;
fig. 5 is a schematic structural view of the mounting base in the present invention.
In the figure, 1, a first hoop; 2. a second hoop; 3. a diaphragm; 4. lifting lugs; 5. a mounting base; 6. a fixing bolt; 7. a first screw; 8. a notch; 9. a spring; 10. a longitudinal mounting plate; 11. a working platform; 12. a first threaded hole; 13. a second threaded hole; 14. rib plates; 15. a second screw; 16. a second nut; 17. a third threaded hole; 18. a first nut; pc, pier stud.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.
Referring to fig. 1 to 5, in an embodiment of the present invention, an pier stud hoop for molding a capping beam, which is convenient to remove, includes a first hoop 1 and a second hoop 2 mounted on the pier stud for molding the capping beam, one ends of the first hoop 1 and the second hoop 2 are hinged, the first hoop 1 and the second hoop 2 are enclosed to form a ring shape after being mounted on a pier stud pc, and an inner diameter of the ring is slightly smaller than an outer diameter of the pier stud pc, so as to provide a sufficient locking force.
The first hoops 1 and the second hoops 2 are provided with a plurality of diaphragm plates 3 at one end far away from the hinge point, a longitudinal mounting plate 10 is arranged between the adjacent diaphragm plates 3, and the diaphragm plates 3, the longitudinal mounting plate 10 and the first hoops 1 or the second hoops 2 can be integrally cast and formed or are mounted in a welding mode.
Be provided with the mount pad 5 with the longitudinal mounting board 10 one-to-one on the first hoop 1, mount pad 5 can dismantle with diaphragm 3 on the first hoop 1 through a plurality of fixing bolt 6 and be connected, and fixing bolt 6 includes second screw 15 and second nut 16, and mount pad 5 is L type mount pad, is provided with floor 14 on the L type mount pad, and floor 14 is in the same place in order to strengthen the intensity of mount pad 5 with mount pad 5 welding, guarantees the stability of connection.
Two second threaded holes 13 are formed in the mounting seat 5, the two second threaded holes 13 are symmetrically arranged about the rib plates 14, through holes matched with the second threaded holes 13 are formed in the transverse partition plate 3 of the first hoop 1, and the mounting seat 5 can be mounted on the first hoop 1 by sequentially penetrating second screws 15 through the second threaded holes 13 and the through holes and then screwing second nuts 16.
The first hoop 1 and the second hoop 2 are locked through three locking bolts which are in one-to-one correspondence with the mounting seats 5, each locking bolt comprises a first screw 7 and a first nut 18, the three longitudinal mounting plates 10 on the second hoop 2 are respectively provided with a third threaded hole 17, the mounting seats 5 are respectively provided with a first threaded hole 12, when the first hoop 1 and the second hoop 2 are locked, the first screw 7 sequentially passes through the third threaded holes 17 and the first threaded holes 12, and then the first nuts 18 are screwed into the tail ends of the first screws 7; after all the locking bolts are installed, the anchor ear can be installed on the pier column pc.
Referring to fig. 1, a locking bolt a, a locking bolt b and a locking bolt c are sequentially arranged from top to bottom.
The outside of the locking bolt is provided with a spring 9, and two ends of the spring 9 are respectively connected with the mounting seat 5 and the second hoop 2.
When the anchor ear is assembled, first hoop 1 and second hoop 2 are enclosed in pier column pc outside earlier, then install all mount pad 5 on first hoop 1, owing to the setting of spring 9, can make there is certain pretightning force between first hoop 1 and the second hoop 2, can make the axiality of third screw hole 17 and first screw hole 12 stronger, made things convenient for locking bolt's quick locking greatly.
The spring a, the spring b and the spring c are sequentially arranged from top to bottom, the elastic coefficient of the spring a is larger than that of the spring b, and the elastic coefficient of the spring c is larger than that of the spring b, and the other parameters of the spring a, the spring b and the spring c are the same.
The anchor ear removing process comprises the following steps:
the anchor ear can be directly dismantled in mid-air, constructors are sent to the vicinity of the anchor ear by utilizing a tower crane, a steel wire rope is utilized to pass through the lifting lug 4 on the first anchor ear 1 and is tied on a moving platform hung on the tower crane, and the moving platform is a moving platform for bearing the constructors and facilitating the high-altitude operation of the constructors and is not repeated in the prior art;
considering that the trend of ejection separation of the anchor ear is stronger when one locking bolt is dismantled, the locking bolts are dismantled in sequence according to the following steps:
s1, firstly removing a locking bolt corresponding to a spring 9 with the smallest elastic coefficient, namely removing a locking bolt c, namely separating the locking bolt c from a corresponding mounting seat 5, wherein the inner diameter of a circular ring formed by encircling a first hoop 1 and a second hoop 2 is slightly smaller than the outer diameter of a pier column pc, but the locking bolt a and the locking bolt b are in a locking state, the first hoop 1 and the second hoop 2 have opposite expansion, namely ejection separation trend, and the spring c can buffer ejection separation force generated by the first hoop 1 and the second hoop at one stage;
s2, removing the locking bolt corresponding to the spring 9 with the central elastic coefficient, and removing the locking bolt b, wherein the locking bolt a is in a locking state, the first hoop 1 and the second hoop 2 have a tendency of further opposite expansion, namely ejection separation, and the spring b can perform secondary buffering on ejection separation force generated by the springs;
s3, finally removing the locking bolts corresponding to the springs 9 with the largest elastic coefficients, namely removing the locking bolts a, wherein all the locking bolts are separated from the mounting seat 5, the first hoop 1 and the second hoop 2 have no locking force, the hoops are separated from the pier column pc, and the first hoop 1 and the second hoop 2 have the largest opposite expansion trend, namely the largest ejection separation force, so that the springs a perform final three-stage buffering;
s4, as the mounting seat 5 is not removed yet, the spring a, the spring b and the spring c still have a certain pretightening force, so that the anchor ear cannot be separated from the pier column pc instantaneously; the force of ejection separation is sequentially reduced through three times of buffering, so that the rebound force of the anchor ear is gradually reduced, and the situation that the anchor ear is subjected to high-speed rebound to strike a constructor or a mobile platform due to excessive elasticity is avoided;
s5, removing all mounting seats 5, wherein the mounting seats 5 are separated from the first hoop 1 from the notch 8, at the moment, the hoop is completely separated from the pier column pc, a constructor takes down the hoop to be placed on a mobile platform, and the tower crane sends the constructor to the ground again from mid-air, so that the high-altitude removal of the hoop is completed.
The anchor ear is directly removed at high altitude, so that the anchor ear is prevented from scratching the pier column, secondary repair of the pier column is not needed, and further deformation of the anchor ear along the pier column in the process of sliding down is avoided.
In addition, in the gradual dismantling process of the locking bolt, the first hoop 1 and the second hoop 2 are separated or have a tendency of separation around the hinge point, the elongation of the spring a, the spring b and the spring c are the same, and the elastic coefficients of the spring a, the spring b and the spring c can be set according to experience, so that the elastic coefficients can be corresponding to the force of ejection separation, the self deformation of the first hoop 1 and the second hoop 2 when one locking bolt is dismantled is further reduced, namely the elastic force of the spring is propped against the hoop, the transverse shearing force of the spring is balanced, the excessive deformation of the first hoop 1 and the second hoop 2 is prevented, the restoration and the reuse are easier after the hoop is dismantled, the service life of the hoop is prolonged, and the production cost is saved.
In order to enable constructors to stay on the pier stud pc for assisting construction operation during assembly of the shape-entering bent cap, the first hoop 1 and the second hoop 2 can be welded with a working platform 11, the working platform 11 can be welded into a cage body by a plurality of reinforcing steel bars, constructors can temporarily stand in the cage body for assisting operation, and the reinforcing steel bars can be obtained locally.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.
Claims (5)
1. Pier stud hoops for coping molding convenient to dismantle comprise a first hoop (1) and a second hoop (2) which are arranged on the pier stud for coping molding, wherein one ends of the first hoop (1) and the second hoop (2) are hinged;
a spring is arranged on the outer side of the locking bolt, and two ends of the spring are respectively connected with the mounting seat (5) and the second hoop (2); the spring a, the spring b and the spring c are sequentially arranged from top to bottom, the elastic coefficient of the spring a is larger than that of the spring b, and the elastic coefficient of the spring c is larger than that of the spring b, and the other parameters of the spring a, the spring b and the spring c are the same;
the locking bolt is removed in sequence according to the following steps:
s1, firstly removing a locking bolt corresponding to a spring with the minimum elastic coefficient, firstly removing a locking bolt c, namely separating the locking bolt c from a corresponding mounting seat (5), wherein at the moment, as the inner diameter of a circular ring formed by encircling a first hoop (1) and a second hoop (2) is smaller than the outer diameter of a pier column pc, the locking bolt a and the locking bolt b are in a locking state, the first hoop (1) and the second hoop (2) have opposite expansion, namely ejection separation trend, and the spring c can buffer ejection separation force generated by the first hoop and the second hoop at one stage;
s2, removing a locking bolt corresponding to a spring with a centered elastic coefficient, removing a locking bolt b, wherein the locking bolt a is in a locking state, the first hoop (1) and the second hoop (2) have a tendency of further opposite expansion, namely ejection separation, and the spring b can perform secondary buffering on ejection separation force generated by the spring b;
s3, finally, removing the locking bolts corresponding to the springs with the largest elastic coefficients, removing the locking bolts a, wherein all the locking bolts are separated from the mounting seat (5), the first hoop (1) and the second hoop (2) have no locking force, the hoops are separated from the pier stud pc, the first hoop (1) and the second hoop (2) have the largest opposite expansion trend, namely the largest ejection separation force, and the springs a perform final three-stage buffering.
2. Pier stud hoop for capping beam molding convenient to dismantle according to claim 1, characterized in that the first hoop (1) is provided with a plurality of lifting lugs (4).
3. Pier stud anchor ear for capping beam molding convenient to dismantle according to claim 1, characterized in that the first hoop (1) and the second hoop (2) are provided with a working platform (11) formed by welding a plurality of reinforcing steel bars.
4. Pier stud hoop for capping beam molding convenient to dismantle according to claim 1, characterized in that the mounting base (5) is an L-shaped mounting base, and rib plates (14) are arranged on the L-shaped mounting base.
5. Pier stud hoops for cap beam molding convenient to dismantle according to claim 1, characterized in that the mounting base (5) is detachably connected with the diaphragm plate (3) on the first hoop (1) through a plurality of fixing bolts (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138517.3A CN113981822B (en) | 2021-09-27 | 2021-09-27 | Pier stud hoop for capping beam molding convenient to dismantle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111138517.3A CN113981822B (en) | 2021-09-27 | 2021-09-27 | Pier stud hoop for capping beam molding convenient to dismantle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113981822A CN113981822A (en) | 2022-01-28 |
| CN113981822B true CN113981822B (en) | 2023-10-24 |
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ID=79736951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111138517.3A Active CN113981822B (en) | 2021-09-27 | 2021-09-27 | Pier stud hoop for capping beam molding convenient to dismantle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113981822B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115354582B (en) * | 2022-09-15 | 2023-03-14 | 中国水利水电第一工程局有限公司 | Mounting bracket for prefabricated sectional capping beam and using method thereof |
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| KR20130049994A (en) * | 2011-11-07 | 2013-05-15 | 현대중공업 주식회사 | Cover plate disassemble method of motor brake |
| CN207334025U (en) * | 2017-07-20 | 2018-05-08 | 天津恒益昌科技发展有限公司 | A kind of anchor ear with high intensity fastening performance |
| KR101896635B1 (en) * | 2018-04-10 | 2018-09-10 | 제룡산업 주식회사 | Plate reinforcement Arm-tie rack band |
| CN208183546U (en) * | 2018-04-25 | 2018-12-04 | 北京泽通水务建设有限公司 | A kind of Coping Construction anchor ear bracket |
| CN109868726A (en) * | 2019-04-01 | 2019-06-11 | 河南省交通规划设计研究院股份有限公司 | A kind of prefabricated assembled cylindricality bridge pier and its construction method |
| CN209188030U (en) * | 2018-12-13 | 2019-08-02 | 河南工业职业技术学院 | A kind of portable chest-developer |
| CN210889586U (en) * | 2019-11-16 | 2020-06-30 | 邵明莹 | Hoop connector |
| CN111593666A (en) * | 2020-05-26 | 2020-08-28 | 中交路桥建设有限公司 | Bent cap hoop mounting platform and integral beam hoop mounting process |
| DE202020107601U1 (en) * | 2020-05-25 | 2021-01-26 | State Grid Huzhou Power Supply Company | Cable clamp and cable fastening mechanism |
| CN112483142A (en) * | 2020-10-19 | 2021-03-12 | 中煤科工开采研究院有限公司 | Detachable pier column |
-
2021
- 2021-09-27 CN CN202111138517.3A patent/CN113981822B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130049994A (en) * | 2011-11-07 | 2013-05-15 | 현대중공업 주식회사 | Cover plate disassemble method of motor brake |
| CN207334025U (en) * | 2017-07-20 | 2018-05-08 | 天津恒益昌科技发展有限公司 | A kind of anchor ear with high intensity fastening performance |
| KR101896635B1 (en) * | 2018-04-10 | 2018-09-10 | 제룡산업 주식회사 | Plate reinforcement Arm-tie rack band |
| CN208183546U (en) * | 2018-04-25 | 2018-12-04 | 北京泽通水务建设有限公司 | A kind of Coping Construction anchor ear bracket |
| CN209188030U (en) * | 2018-12-13 | 2019-08-02 | 河南工业职业技术学院 | A kind of portable chest-developer |
| CN109868726A (en) * | 2019-04-01 | 2019-06-11 | 河南省交通规划设计研究院股份有限公司 | A kind of prefabricated assembled cylindricality bridge pier and its construction method |
| CN210889586U (en) * | 2019-11-16 | 2020-06-30 | 邵明莹 | Hoop connector |
| DE202020107601U1 (en) * | 2020-05-25 | 2021-01-26 | State Grid Huzhou Power Supply Company | Cable clamp and cable fastening mechanism |
| CN111593666A (en) * | 2020-05-26 | 2020-08-28 | 中交路桥建设有限公司 | Bent cap hoop mounting platform and integral beam hoop mounting process |
| CN112483142A (en) * | 2020-10-19 | 2021-03-12 | 中煤科工开采研究院有限公司 | Detachable pier column |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113981822A (en) | 2022-01-28 |
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