CN113047181A - Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof - Google Patents
Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof Download PDFInfo
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- CN113047181A CN113047181A CN202110384163.4A CN202110384163A CN113047181A CN 113047181 A CN113047181 A CN 113047181A CN 202110384163 A CN202110384163 A CN 202110384163A CN 113047181 A CN113047181 A CN 113047181A
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- 230000001360 synchronised effect Effects 0.000 title claims abstract description 37
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 238000009415 formwork Methods 0.000 claims description 57
- 229910000831 Steel Inorganic materials 0.000 claims description 26
- 239000010959 steel Substances 0.000 claims description 26
- 230000009194 climbing Effects 0.000 claims description 25
- 230000000712 assembly Effects 0.000 claims description 9
- 238000000429 assembly Methods 0.000 claims description 9
- 241000219098 Parthenocissus Species 0.000 claims 2
- 238000009434 installation Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
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Abstract
The invention belongs to the technical field of hollow pier template installation and construction methods, and discloses a synchronous lifting device for inner and outer templates of a hollow pier and a construction method thereof, wherein the synchronous lifting device for the inner and outer templates of the hollow pier comprises an inner template, an outer template system, a connecting platform and a lifting system, the outer template system comprises an outer template and an outer template truss, the outer template is positioned on the outer side wall of the hollow pier, the inner template and the outer template are arranged at intervals, the outer template is arranged on the outer side of the inner template, and a pouring space is formed between the inner template and the outer template; the connecting platform is positioned above the inner template and the outer template and fixedly connected with the inner template and the outer template truss; the lifting system is arranged at one end, far away from the connecting platform, of the outer template truss. The device can drive the synchronous lifting of the inner template and the outer template, has simple structure, easy installation and strong safety, and reduces the risk of high-altitude hoisting. The lifting device is used in the hollow pier construction method, so that the hollow pier construction efficiency is accelerated, and the life safety of operators is effectively guaranteed.
Description
Technical Field
The invention relates to the technical field of hollow pier template installation and construction methods, in particular to a synchronous lifting device for an inner mold and an outer mold of a hollow pier and a construction method thereof.
Background
The hollow pier is a form structure widely adopted in the design of the bridge abutment structure of the railway or the highway at present, and particularly when the bridge is high, a hollow thin-wall pier body structure is preferably used and matched with a creeping formwork method for construction. In the work progress, the support body that generally needs to adopt the reinforcement to tie up under the general condition is supplementary carries out the installation of reinforcing bar in the hollow mound, treats that the reinforcement in the hollow mound is pre-buried back, hangs the support body from, hoist and mount inside and outside mould etc. again, and hoist and mount operation process is complicated, shifts repeatedly, dismouting support body and inside and outside template have increased the work load of tower crane, have increased safe risk. And the space of the operating platform is limited, the installation and disassembly construction of binding the steel bars and the inner and outer templates is difficult, the binding precision and stability of the steel bars are difficult to control, and the life safety of the operating personnel is also influenced.
Disclosure of Invention
The invention aims to provide a synchronous lifting device for an inner mold and an outer mold of a hollow pier and a construction method thereof, which can drive the inner mold and the outer mold to be lifted synchronously, accelerate the construction efficiency of the hollow pier, reduce the risk of high-altitude lifting, and effectively ensure the life safety of operating personnel.
In order to achieve the purpose, the invention adopts the following technical scheme:
in one aspect, a synchronous lifting device for inner and outer molds of a hollow pier is provided, which comprises:
an inner template;
the outer formwork system comprises an outer formwork and an outer formwork truss, the outer formwork is located on the outer side wall of the hollow pier, the inner formwork and the outer formwork are arranged at intervals, the outer formwork is arranged on the outer side of the inner formwork, and a pouring space is formed between the inner formwork and the outer formwork and used for pouring concrete; the outer formwork truss is fixedly arranged on one side, far away from the hollow pier, of the outer formwork;
the connecting platform is positioned above the inner template and the outer template and fixedly connected with the inner template and the outer template truss; and
and the lifting system is arranged at one end of the outer formwork truss far away from the connecting platform.
As a preferred structure of the invention, the connecting platform comprises a plurality of groups of connecting assemblies and a plurality of bearing beams, two ends of each bearing beam are respectively and fixedly connected with the connecting assemblies, each group of connecting assemblies comprises an inner mold suspender and an outer mold suspender, one end of the inner mold suspender is fixedly connected with the inner template, one end of the outer mold suspender is fixedly connected with the outer template truss, and the other end of the inner mold suspender and the other end of the outer mold suspender are respectively and fixedly connected with the bearing beams.
As a preferred structure of the present invention, the connecting platform further includes a top platform, and the top platform is fixedly mounted above the plurality of load-bearing cross beams.
As a preferable structure of the invention, the other end of the internal mold suspender is provided with a thread, and the other end of the internal mold suspender passes through the bearing cross beam and is connected with the fastener thread.
As a preferable structure of the invention, the other end of the external mold suspender is provided with a collar, and the bearing cross beam is inserted into the collar.
As a preferable structure of the invention, one side of the inner template, which is far away from the hollow pier, is fixedly connected with a connecting frame, the connecting frame is provided with a mounting hole, one end of the inner mold suspender is provided with a thread, and the other end of the inner mold suspender penetrates through the mounting hole to be in threaded connection with a fastener.
As a preferable structure of the present invention, the lifting system includes a hydraulic climbing frame, and the hydraulic climbing frame is fixedly connected to the outer formwork truss.
As a preferable structure of the present invention, a working platform is disposed on the top of the hydraulic climbing frame.
As a preferable structure of the invention, the outer formwork truss is fixedly connected with a pouring platform.
On the other hand, the hollow pier construction method is provided, the hollow pier inner and outer mold synchronous lifting device is used, and the hollow pier inner and outer mold synchronous lifting device comprises the following steps:
s1, completing construction of the hollow pier foundation sections, and installing the synchronous lifting device for the inner and outer molds of the hollow pier on the poured pier stud sections;
s2, embedding steel bars at the pier column segment to be poured;
s3, after the steel bars are embedded, climbing the hydraulic climbing frame to the pier column section to be cast;
s4, adjusting and fixing the inner template and the outer template on the inner side and the outer side of the pier stud segment to be poured;
s5, pouring concrete into the pier column segment to be poured;
and S6, repeating the steps S2-S5 until the hollow pier is integrally cast.
The invention has the beneficial effects that: the synchronous lifting device for the inner and outer templates of the hollow pier is connected with the inner template and the outer template through the connecting platform, so that the lifting system can drive the inner template and the outer template to be lifted synchronously when being started, the whole structure is simple, the installation is easy, the safety is high, the construction efficiency of the hollow pier can be effectively accelerated, the lifting procedures of the inner template, the outer template and the reinforcement auxiliary frame are reduced, and the risk of high-altitude lifting is reduced. The hollow pier construction method uses the synchronous lifting device for the inner and outer dies of the hollow pier, so that the construction efficiency of the hollow pier is improved, the life safety of operators is effectively guaranteed, and the engineering cost is reduced.
Drawings
FIG. 1 is a front view of the structure of a synchronous lifting device for inner and outer molds of a hollow pier according to an embodiment of the invention;
FIG. 2 is a partial structural side view of the synchronous lifting device for the inner and outer molds of the hollow pier according to the embodiment of the invention;
FIG. 3 is a first schematic view of the operation of the synchronous lifting device for the inner and outer molds of the hollow pier according to the embodiment of the invention;
FIG. 4 is a second schematic operation diagram of the synchronous lifting device for the inner and outer molds of the hollow pier according to the embodiment of the invention;
FIG. 5 is a third schematic view of the operation of the synchronous lifting device for the inner and outer molds of the hollow pier according to the embodiment of the invention;
fig. 6 is a fourth schematic operation diagram of the synchronous lifting device for the inner and outer dies of the hollow pier according to the embodiment of the invention.
In the figure:
1. an inner template; 11. a connecting frame;
2. an outer mold system; 21. an outer template; 22. an outer formwork truss; 23. pouring a platform;
3. connecting the platform; 30. a connecting assembly; 31. an inner mold boom; 32. an outer mold suspender; 33. a load bearing beam; 34. a top platform;
4. a lifting system; 41. hydraulic climbing frames; 411. an operation platform;
100. hollow piers; 101. a poured pier segment; 102. pier column segments to be poured; 103. and (5) reinforcing steel bars.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar parts throughout or parts having the same or similar functions. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediary, a connection between two elements, or an interaction between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include the first feature and the second feature being in direct contact, or may include the first feature and the second feature being in contact not directly but with another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.
As shown in fig. 1-2, the invention provides a synchronous lifting device for inner and outer molds of a hollow pier, comprising an inner mold plate 1, an outer mold system 2, a connecting platform 3 and a lifting system 4, wherein the inner mold plate 1 is positioned on the inner side wall of the hollow pier 100; the outer die system 2 comprises an outer die plate 21 and an outer die plate truss 22, the outer die plate 21 is positioned on the outer side wall of the hollow pier 100, the inner die plate 1 is in a [ -shaped structure, the two [ -shaped structure inner die plates 1 are arranged in a surrounding mode to form a curved inner die, in the embodiment, the inner die plate 1 preferably adopts [ -shaped steel die, a cushion steel plate is added at the joint of the two [ -shaped steel die plates to ensure the sealing performance of the two inner die plates 1, the inner die plates 1 and the outer die plate 21 are arranged at intervals, the outer die plate 21 is arranged on the outer side of the inner die plate 1, and the outer die plate truss 22 is fixedly installed on one side, away from the; a pouring space is formed between the inner formwork 1 and the outer formwork 21 and is used for pouring concrete; the connecting platform 3 is positioned above the inner template 1 and the outer template 21 and is fixedly connected with the inner template 1 and the outer template truss 22; the lifting system 4 is mounted to the end of the outer formwork truss 22 remote from the connecting platform 3. Preferably, the lifting system 4 of the lifting system 4 includes a hydraulic climbing frame 41, the hydraulic climbing frame 41 is fixedly connected to the outer template truss 22, the hydraulic climbing frame 41 is a device commonly used in the art, and the specific structure and principle thereof are not described in detail in this embodiment.
Hydraulic pressure climbs frame 41 and starts the connecting platform 3 synchronous motion who drives inner formword 1, exterior sheathing 21 and top in this embodiment, and connecting platform 3 both plays the effect of synchronous connection inner formword 1 and exterior sheathing 21, can supply the operation personnel to install the operation at last again, for the operation personnel provides sufficient operating space, can regard as auxiliary frame, provides the foothold, and auxiliary operation personnel installation reinforcing bar 103.
Preferably, the connecting platform 3 includes a plurality of sets of connecting assemblies 30 and a plurality of bearing beams 33, the two ends of the bearing beams 33 are respectively and fixedly connected with the connecting assemblies 30, each set of connecting assemblies 30 includes an inner mold boom 31 and an outer mold boom 32, one end of the inner mold boom 31 is fixedly connected with the inner formwork 1, one end of the outer mold boom 32 is fixedly connected with the outer formwork truss 22, and the other end of the inner mold boom 31 and the other end of the outer mold boom 32 are respectively and fixedly connected with the bearing beams 33. In the embodiment, the external mold suspender 32 is formed by splicing 10# channel steel, and the height is 2.5 m; the bearing cross beam 33 is made of 14# I-steel, and the length of the bearing cross beam exceeds the outer mold hanging rods 32 on the two sides by about 0.5 m.
Preferably, the connecting platform 3 further comprises a top platform 34, and the top platform 34 is fixedly installed above the plurality of load-bearing beams 33. In this embodiment, the top platform 34 is formed by welding 45# angle steel and reinforcing steel bar material into a grid shape, so that the operator can conveniently drop feet.
Preferably, the other end of the inner mold hanger rod 31 is provided with a thread, and the other end of the inner mold hanger rod 31 passes through the bearing beam 33 to be connected with the fastener thread. In this embodiment, the fastening member is preferably a double nut, and the inner mold hanger rod 31 is made of finish-rolled deformed steel bar with a diameter of 32mm, and is detachably connected with the bearing cross beam 33 through the double nut, so that the mounting and the dismounting are convenient. Besides, in addition to the above-mentioned manner of fixedly connecting the inner form 1 by the inner form suspender 31, in this embodiment, the inner form suspender 31 can be replaced by a steel plate suspender, the steel plate suspender is a device commonly used in the art, and when the inner form 1 is fixedly connected by the steel plate suspender, the steel plate suspender 3 is preferably fixed by a bolting manner.
Preferably, the other end of the outer mould hanger bar 32 is provided with a collar, and the load-bearing cross beam 33 is inserted into the collar. In this embodiment, the two ends of the bearing beam 33 are respectively inserted into the lantern rings, preferably, the joints between the lantern rings and the bearing beam 33 can be welded, the connection strength between the lantern rings and the bearing beam 33 is enhanced, the stability is enhanced, and the shaking is reduced.
Preferably, a connecting frame 11 is fixedly connected to one side of the inner formwork 1 away from the hollow pier 100, a mounting hole is formed in the connecting frame 11, a thread is formed at one end of the inner formwork hanger rod 31, and the other end of the inner formwork hanger rod 31 penetrates through the mounting hole to be screwed with a fastener. In this embodiment, the fastening member is preferably a nut, the connecting frame 11 is welded and fixed to the inner side of the inner formwork 1, and the inner formwork hanger rod 31 and the connecting frame 11 are detachably connected through the fastening member.
Preferably, the top of the hydraulic climbing frame 41 in this embodiment is provided with a work platform 411, and the work platform 411 is used for workers to fall, so as to provide sufficient work space for the workers. Preferably, a protective net is arranged on the periphery of the operation platform 411 to guarantee the personal safety of the operators.
Preferably, the outer formwork truss 22 in this embodiment is fixedly connected with a pouring platform 23, and the pouring platform 23 is convenient for an operator to stand on the pouring platform 23 to pour concrete into the inner formwork 1 and the outer formwork 21, so that the pouring condition can be observed in real time.
In addition, the embodiment further provides a hollow pier construction method, the operation schematic diagram is shown in fig. 3 to fig. 6, the hollow pier inner and outer mold synchronous lifting device is used, and the method comprises the following steps:
s1, completing construction of the hollow pier 100 foundation section, and installing the hollow pier inner and outer mold synchronous lifting device on the poured pier stud section 101;
in the step, the construction of the hollow pier 100 foundation section with the length of 6m is firstly completed, and then the hollow pier inner and outer mold synchronous lifting device is installed on the poured pier column section 101.
S2, embedding steel bars 103 at the pier column segment 102 to be poured;
in this step, as shown in fig. 3, an operator may pre-embed and bind the steel bars 103 on the pier stud segment 102 to be poured through the top platform 34 and the pouring platform 23 of the hollow pier inner and outer mold synchronous lifting device, so as to achieve rapid installation of the steel bars 103, wherein the installation height of the steel bars 103 in this embodiment is preferably 4.5 m.
S3, after the steel bars 103 are embedded, the hydraulic climbing frame 41 climbs to the pier column segment 102 to be poured;
in this step, as shown in fig. 4, after the steel bars 103 are embedded, an operator stands on the work platform to start or operate the hydraulic climbing frame 41, so that the hydraulic climbing frame 41 ascends in the arrow direction, and when the inner formwork 1 and the outer formwork 21 climb to the pier stud segment 102 to be poured, the hydraulic climbing frame 41 stops climbing. Preferably, in this embodiment, after the hydraulic climbing frame 41 climbs for about 2.25m, the hydraulic climbing frame 41 is locked by a climbing cone or a latch pin, so as to prevent the hydraulic climbing frame 41 from sliding downwards.
S4, adjusting and fixing the inner template 1 and the outer template 21 at the inner side and the outer side of the pier stud segment 102 to be poured;
in this step, as shown in fig. 5, after the hydraulic climbing frame 41 is stopped climbing, the inner formwork 1 and the outer formwork 21 are adjusted, preferably, the inner formwork 1 and the outer formwork 21 are fixed by using tie rods, and the joints are sealed by using thin steel plates and foam rubber.
S5, injecting concrete into the pier stud segment 102 to be poured;
in this step, as shown in fig. 6, an operator stands on the pouring platform 23 to pour concrete between the inner formwork 1 and the outer formwork 21, preferably, the hollow pier 100 is poured by hoisting a concrete hopper through a tower crane, after the concrete strength reaches 2.5MPa, the embedded steel bars 103 are bound on the concrete, after the concrete strength reaches 7.5MPa, the thin steel plates, formwork counter-pull rods and the like used for the previous joints are removed, and the hydraulic climbing frame 41 is started again to climb.
And S6, repeating the steps S2-S5 until the hollow pier is integrally cast.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a synchronous hoisting device of interior outer mould of hollow mound which characterized in that includes:
an inner formwork (1);
the outer formwork system (2) comprises an outer formwork (21) and an outer formwork truss (22), the outer formwork (21) is located on the outer side wall of the hollow pier (100), the inner formwork (1) and the outer formwork (21) are arranged at intervals, the outer formwork (21) is arranged on the outer side of the inner formwork (1), and a pouring space is formed between the inner formwork (1) and the outer formwork (21) and used for pouring concrete; the outer formwork truss (22) is fixedly arranged on one side, away from the hollow pier (100), of the outer formwork (21);
the connecting platform (3) is positioned above the inner formwork (1) and the outer formwork (21) and fixedly connected with the inner formwork (1) and the outer formwork truss (22); and
the lifting system (4) is installed at one end, far away from the connecting platform (3), of the outer formwork truss (22).
2. The synchronous lifting device for the inner and outer dies of the hollow pier as claimed in claim 1, wherein the connecting platform (3) comprises a plurality of groups of connecting assemblies (30) and a plurality of bearing beams (33), both ends of the bearing beams (33) are fixedly connected with the connecting assemblies (30) respectively, each group of connecting assemblies (30) comprises an inner die suspender (31) and an outer die suspender (32), one end of the inner die suspender (31) is fixedly connected with the inner die plate (1), one end of the outer die suspender (32) is fixedly connected with the outer die plate truss (22), and the other end of the inner die suspender (31) and the other end of the outer die suspender (32) are fixedly connected with the bearing beams (33) respectively.
3. The synchronous lifting device for the inner and outer molds of the hollow pier according to claim 2, characterized in that the connecting platform (3) further comprises a top platform (34), and the top platform (34) is fixedly arranged above the plurality of bearing cross beams (33).
4. The synchronous lifting device for the inner and outer dies of the hollow pier as claimed in claim 2, wherein the other end of the inner die hanger rod (31) is provided with threads, and the other end of the inner die hanger rod (31) passes through the bearing cross beam (33) to be in threaded connection with a fastener.
5. The synchronous lifting device for the inner and outer dies of the hollow pier is characterized in that the other end of the outer die suspender (32) is provided with a sleeve ring, and the bearing cross beam (33) is inserted in the sleeve ring.
6. The synchronous lifting device for the inner and outer dies of the hollow pier is characterized in that a connecting frame (11) is fixedly connected to one side, away from the hollow pier (100), of the inner die plate (1), a mounting hole is formed in the connecting frame (11), a thread is arranged at one end of the inner die hanging rod (31), and one end of the inner die hanging rod (31) penetrates through the mounting hole to be in threaded connection with a fastener.
7. The synchronous lifting device for the inner and outer molds of the hollow pier according to any one of claims 1 to 6, characterized in that the lifting system (4) comprises a hydraulic creeper (41), and the hydraulic creeper (41) is fixedly connected with the outer mold plate truss (22).
8. The synchronous lifting device for the inner and outer molds of the hollow pier is characterized in that a working platform (411) is arranged at the top of the hydraulic climbing frame (41).
9. The synchronous lifting device for the inner and outer molds of the hollow pier is characterized in that a pouring platform (23) is fixedly connected to the outer mold plate truss (22).
10. A hollow pier construction method, characterized in that the hollow pier inner and outer mold synchronous lifting device of claim 9 is used, comprising the following steps:
s1, completing construction of the foundation section of the hollow pier (100), and installing the synchronous lifting device of the inner and outer molds of the hollow pier on the poured pier column section (101);
s2, embedding steel bars (103) at the pier column segment (102) to be poured;
s3, after the steel bars (103) are embedded, climbing the hydraulic climbing frame (41) to the pier column segment (102) to be poured;
s4, adjusting and fixing the inner template (1) and the outer template (21) on the inner side and the outer side of the pier stud segment (102) to be poured;
s5, injecting concrete into the pier column segment (102) to be poured;
and S6, repeating the steps S2-S5 until the hollow pier is integrally cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110384163.4A CN113047181A (en) | 2021-04-09 | 2021-04-09 | Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110384163.4A CN113047181A (en) | 2021-04-09 | 2021-04-09 | Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof |
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| CN113047181A true CN113047181A (en) | 2021-06-29 |
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| CN202110384163.4A Pending CN113047181A (en) | 2021-04-09 | 2021-04-09 | Synchronous lifting device for inner and outer molds of hollow pier and construction method thereof |
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| CN (1) | CN113047181A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113582076A (en) * | 2021-08-24 | 2021-11-02 | 中交三公局第一工程有限公司 | Sliding formwork lifting device for thin-wall hollow pier stud |
| CN114197314A (en) * | 2021-12-14 | 2022-03-18 | 中铁大桥局武汉桥梁特种技术有限公司 | Construction method of steel bar close-fit type thin-wall pier |
| CN114457694A (en) * | 2022-02-28 | 2022-05-10 | 重庆市交通工程监理咨询有限责任公司 | Bridge climbing type formwork and construction method |
| CN114892528A (en) * | 2022-05-23 | 2022-08-12 | 云南交投集团云岭建设有限公司 | Double-layer formwork construction method for uniform-section thin-wall hollow pier |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113582076A (en) * | 2021-08-24 | 2021-11-02 | 中交三公局第一工程有限公司 | Sliding formwork lifting device for thin-wall hollow pier stud |
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| CN114197314A (en) * | 2021-12-14 | 2022-03-18 | 中铁大桥局武汉桥梁特种技术有限公司 | Construction method of steel bar close-fit type thin-wall pier |
| CN114457694A (en) * | 2022-02-28 | 2022-05-10 | 重庆市交通工程监理咨询有限责任公司 | Bridge climbing type formwork and construction method |
| CN114457694B (en) * | 2022-02-28 | 2024-02-27 | 重庆市交通工程监理咨询有限责任公司 | Bridge climbing type formwork and construction method |
| CN114892528A (en) * | 2022-05-23 | 2022-08-12 | 云南交投集团云岭建设有限公司 | Double-layer formwork construction method for uniform-section thin-wall hollow pier |
| CN114892528B (en) * | 2022-05-23 | 2024-03-05 | 云南交投集团云岭建设有限公司 | Construction method of double-layer template of uniform-section thin-wall hollow pier |
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