CN115059041B - Self-lifting assembled form for lock head empty box structure concrete - Google Patents
Self-lifting assembled form for lock head empty box structure concrete Download PDFInfo
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- CN115059041B CN115059041B CN202210719188.XA CN202210719188A CN115059041B CN 115059041 B CN115059041 B CN 115059041B CN 202210719188 A CN202210719188 A CN 202210719188A CN 115059041 B CN115059041 B CN 115059041B
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- 238000010276 construction Methods 0.000 claims abstract description 48
- 238000009415 formwork Methods 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 4
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 230000009194 climbing Effects 0.000 claims description 3
- 238000005056 compaction Methods 0.000 claims description 3
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001687 destabilization Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02C—SHIP-LIFTING DEVICES OR MECHANISMS
- E02C1/00—Locks or dry-docks; Shaft locks, i.e. locks of which one front side is formed by a solid wall with an opening in the lower part through which the ships pass
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
Abstract
The invention relates to a construction method of a self-lifting assembly type formwork for a lock head empty box structure concrete, which comprises the following steps: installing a hollow jack and establishing a working plane; installing a novel assembled support; installing an outer template and fixing the outer template with a novel assembly type support; pouring concrete; and (5) circularly constructing until the top is sealed. The beneficial effects of the invention are as follows: providing a continuous construction flow; the construction does not need a large hoisting machine, so that the problem of low construction efficiency of the existing template is solved; the folding and dismounting modes of the self-lifting assembly type template can adapt to various lock head multi-size empty box structures, so that the construction speed of the vertical mould is increased; after the concrete is poured, various components can be quickly disassembled for later use, so that the components can be repeatedly used, a large amount of manpower and material resources are reduced, the construction cost is saved, the construction period is shortened, and quick and efficient construction of lock head construction of a ship lock is realized; the working platform and the safety net are arranged on the working plane, so that the safety of personnel is ensured, and the protection effect is good.
Description
Technical Field
The invention belongs to the technical field of hydraulic engineering, and particularly relates to a self-lifting assembly type formwork for a lock head empty box structure concrete.
Background
When the ship lock is built, a multi-size empty box structure is usually reserved in the main body of the water delivery gallery and the side pier of the lock head. At present, the multi-size empty box structure template engineering of the lock head is constructed by adopting a traditional full scaffold, however, a large amount of manpower and material resources are often consumed in the installation process of the traditional full scaffold, and the construction cost is increased. Meanwhile, the different lock head empty boxes of different locks are various in structural size and form, so that the template is difficult to install, the template of the structure is low in construction efficiency, and the construction period of the whole engineering project is prolonged.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a self-lifting assembly type formwork for a lock head empty box structure concrete.
This kind of self-lifting assembled form for lock head empty box structural concrete includes: the device comprises a hollow jack, a lifting hook, a working plane, a pre-buried supporting rod, a novel assembly type support, an outer template and an inner template; the embedded support rod is arranged in the excavated earthwork before the cushion layer concrete is poured, the hollow jack is arranged on the embedded support rod, and the working plane is hung on the hollow jack; an inner template is assembled on the novel assembly type support, the inner template and the novel assembly type support form a vertical die integral structure, and the vertical die integral structure is connected with the hollow jack through a lifting hook; the novel assembly type support assembled with the inner template is fixed with the outer template through a pair of pull rods;
novel assembled support wholly is umbrella form, and novel assembled support includes: two cross bars, two push rods, a plurality of sliding devices, a main stress rod and a rotating device; the top of the main stress rod of the novel assembly type support is provided with a rotating device, and the left side and the right side of the hinge of the rotating device are both hinged with a cross rod; each cross rod is fixedly connected with one inner template through a hook bolt; the sliding device at one end of each push rod is connected with the middle part of the cross rod in a sliding way, and the sliding device at the other end of each push rod is connected with the main stress rod; the connecting part of the sliding device and the main stress rod is positioned at the middle lower part of the main stress rod; each cross rod forms a set included angle with a main stress rod positioned in the middle of the novel assembly type support through a push rod and a sliding device.
Preferably, the hollow jack comprises: the device comprises a reinforcing rod, a main beam, a cantilever and a lifting hook; one end of the cantilever is horizontally fixed on the embedded supporting rod, and one end of the cantilever far away from the embedded supporting rod is connected with the bottom of the main beam; the top end of the main beam is fixedly connected with the upper surface of the cantilever through a reinforcing rod; the upper end of the lifting hook is connected with the hollow jack through a cantilever, and the lower end of the lifting hook is fixedly connected with the novel assembly type support assembled with the inner template and the outer template through an anchorage device; the hollow jack is also internally provided with a hydraulic device.
Preferably, the hooks are made of steel strands; the hollow jack is made of high-density alloy steel material; the outer template is a steel template.
Preferably, the working plane includes: an operation platform and a safety net; the working platform is horizontally arranged and connected to the hollow jack; the safety net is arranged around the operation platform.
Preferably, the working plane is made of iron pipe.
Preferably, the outer template includes: template A and template B, template B installs below template A.
The construction method of the self-lifting assembly type formwork for the lock head empty box structure concrete comprises the following steps:
step 1, excavating earthwork, installing a pre-buried support rod before pouring cushion layer concrete, and pouring the cushion layer concrete; after the cushion layer concrete is solidified and the embedded supporting rod is stable, installing a hollow jack on the embedded supporting rod and establishing a working plane;
step 2, carrying out hoisting construction of the novel assembled support according to the lock head form of the ship lock, pre-assembling the novel assembled support by matching with a hook head bolt and an inner template, and fixing the inner template on the novel assembled support through the hook head bolt to obtain a vertical die integral structure of the inner template and the novel assembled support;
step 3, carrying out block and sectional construction on the lock head of the ship lock by adopting a step type layered pouring method; lifting a working plane connected with the hollow jack through the hollow jack, and connecting the inner template and the novel assembled supporting vertical die integral structure with the hollow jack through the lifting hook;
step 4, under the action of a lifting hook, installing an outer template, and fixedly connecting the outer template with the inner template: dividing the outer template into a template A and a template B according to the construction progress; hoisting a template A of the outer template to the same horizontal installation height as the novel assembly type support by using a hollow jack, placing a template B under the template A, and fixing the template A and the template B by using bolts; lifting the outer templates and the inner templates piece by using lifting hooks, and lifting a group of outer templates and inner templates for climbing every cycle; after the outer template and the inner template are lifted to the same set height, the outer template and the inner template in the same group are lifted in place, and the outer template and the inner template in the same group are fixed through the opposite pull rod, so that the assembly is completed;
and 5, pouring and vibrating a layer of concrete, checking the strength of the concrete at the lower part of the pier body, loosening the lifting hook if the strength of the concrete is increased to the set strength, loosening bolts for fixedly connecting the template A and the template B, and entering a cyclic construction stage: the novel assembly type supporting hanging hook provided with the inner template is hung at the next formwork height to serve as an inner die by the hollow jack, and the outer template is hung to the same horizontal plane of the inner template by the hollow jack through the hanging hook; after the next layer of outer templates and the inner templates are in place, fixing the outer templates and the inner templates in the same group through opposite pull rods; lifting the working plane integrally, and pouring and vibrating the next layer of concrete; along with the concrete pouring, the hollow jack is continuously lifted, the outer template lifted by the lifting hook is continuously turned over and climbed, the novel assembly type support is simultaneously lifted, the concrete is poured, and a vibrator is used for compaction until the construction is carried out to the top surface; and (3) after all pouring is completed and the concrete is finally set, sprinkling water for curing.
Preferably, the strength of the bedding concrete poured in the step 1 is C15.
Preferably, the new fabricated support in step 2 is preformed by a processing plant and transported to the site.
The beneficial effects of the invention are as follows:
(1) The invention provides a self-lifting assembly type formwork for a lock head multi-size empty box structure concrete, and provides a continuous construction flow; the construction does not need a large hoisting machine, so that the problem of low construction efficiency of the existing template is solved; the folding and dismounting modes of the self-lifting assembly type template can adapt to various lock head multi-size empty box structures, so that the construction speed of the vertical mould is increased; after the concrete is poured, various components can be quickly disassembled for later use, so that a large amount of manpower and material resources are reduced, the construction cost is saved, the construction period is shortened, and quick and efficient construction of lock head construction of the ship lock is realized.
(2) The invention is provided with an operation platform and a safety net on a working plane; the working platform is horizontally arranged and connected to the hollow jack; the safety net is arranged around the operation platform; the working platform is mainly used for checking the structure and assisting the large-area steel template to turn up, and comprises the butt joint and the dismantling of the large-area steel plate; the outer formwork is supported and climbed in a turnover form, the novel assembled support and the outer formwork can be quickly disassembled and assembled, the outer formwork is self-lifted according to construction organization through a hollow jack, and after concrete is solidified, the novel assembled support and the inner formwork can be disassembled so as to be reused; the hollow jack is provided with a corresponding intelligent control system and a hydraulic system.
(3) When the ship lock is built, the multi-size empty box structure is reserved in the water delivery gallery and the side pier main body positioned at the lock head, and the vertical mould suitable for the multi-size empty box structure is scientifically and reasonably carried out; the concrete consumption can be saved on the premise of ensuring the strength, and the dead weight is reduced to ensure the stability of the foundation and avoid the destabilization damage; the method comprises the steps of adopting assembly type construction, attaching an upper construction template and a platform to a finished concrete pier body through a lower template by means of a high pier technology of concrete pouring construction, and taking the cured concrete pier body as a supporting body, and sliding in multiple directions (horizontal, vertical or slope directions) by means of the construction template to finish the work of steel bar forming, template positioning correction, concrete pouring and the like; ensures personnel safety and has good protection effect.
Drawings
FIG. 1 is a schematic view of the overall structure of a self-lifting fabricated form of the present invention;
FIG. 2 is a partial structural elevation view of the self-lifting assembled form of the present invention;
FIG. 3 is a partial structural top view of the self-lifting fabricated form of the present invention;
FIG. 4 is a schematic structural view of the novel fabricated support of the present invention;
FIG. 5 is a schematic illustration of the self-lifting assembly of the interior of the empty box of the present invention;
fig. 6 is a structural view of the hollow jack of the present invention.
Reference numerals illustrate: the device comprises a working plane 1, a lifting hook 2, a hollow jack 3, a pre-buried supporting rod 4, a reinforcing rod 5, a cantilever 6, a main beam 7, a template A8, a template B9, a novel assembly type supporting 10, an outer template 11, an inner template 12, a cross rod 13, a push rod 14, a sliding device 15, a main stress rod 16, a hook head bolt 17 and a rotating device 18.
Detailed Description
The invention is further described below with reference to examples. The following examples are presented only to aid in the understanding of the invention. It should be noted that it will be apparent to those skilled in the art that modifications can be made to the present invention without departing from the principles of the invention, and such modifications and adaptations are intended to be within the scope of the invention as defined in the following claims.
Example 1
An embodiment of the present application provides a self-lifting assembly type formwork for a lock head empty box structure concrete as shown in fig. 1 to 6, including: the novel lifting device comprises a hollow jack 3, a lifting hook 2, a working plane 1, an embedded supporting rod 4, a novel assembled support 10, an outer template 11 and an inner template 12; the embedded support rod 4 is arranged in the excavated earthwork before the cushion layer concrete is poured, the hollow jack 3 is arranged on the embedded support rod 4, and the working plane 1 is hung on the hollow jack 3; the novel assembly type support 10 is provided with an inner template 12, the inner template 12 and the novel assembly type support 10 form a vertical die integral structure, and the vertical die integral structure is connected with the hollow jack 3 through the lifting hook 2; the novel assembly type support 10 assembled with the inner template 12 is fixed with the outer template 11 through a counter pull rod; the work plane 1 includes: an operation platform and a safety net; the working platform is horizontally arranged and connected to the hollow jack 3; the safety net is arranged around the operation platform, and the working plane 1 is made of an iron pipe; the lifting hook 2 is made of steel stranded wires; the hollow jack 3 is made of high-density alloy steel material; the outer die plate 11 includes: a template A8 and a template B9, wherein the template B9 is arranged below the template A8; the outer template 11 is a steel template;
the novel assembled support 10 is umbrella-shaped as a whole, and the novel assembled support 10 comprises: two cross bars 13, two push rods 14, a plurality of sliding devices 15, a main stress rod 16 and a rotating device 18; the top of the main stress rod 16 of the novel assembled support 10 is provided with a rotating device 18, and the left side and the right side of the hinge joint of the rotating device 18 are both hinged with a cross rod 13; each cross rod 13 is fixedly connected with one inner template 12 through a hook bolt 17; the sliding device 15 at one end of each push rod 14 is in sliding connection with the middle part of the cross rod 13, and the sliding device 15 at the other end of each push rod 14 is connected with the main stress rod 16; the connection part of the sliding device 15 and the main stress rod 16 is positioned at the middle lower part of the main stress rod 16; each cross rod 13 forms a set included angle with a main stress rod 16 positioned in the middle of the novel assembled support 10 through a push rod 14 and a sliding device 15;
the hollow jack 3 includes: the reinforcing rod 5, the main beam 7, the cantilever 6 and the lifting hook 2; one end of the cantilever 6 is horizontally fixed on the embedded support rod 4, and one end of the cantilever 6 far away from the embedded support rod 4 is connected with the bottom of the main beam 7; the top end of the main beam 7 is fixedly connected with the upper surface of the cantilever 6 through a reinforcing rod 5; the upper end of the lifting hook 2 is connected with the hollow jack 3 through a cantilever 6, and the lower end of the lifting hook 2 is fixedly connected with a novel assembled support 10 assembled with an inner template 12 and an outer template 11 through an anchorage device; a hydraulic device is also arranged in the hollow jack 3;
example two
On the basis of the first embodiment, the second embodiment of the application provides a construction method for a self-lifting assembly type formwork for the concrete of the lock head empty box structure in the first embodiment:
step 1, excavating earthwork, installing a pre-buried support rod 4 before pouring cushion layer concrete, and pouring the cushion layer concrete; after the cushion layer concrete is solidified and the pre-buried support rods 4 are stable, installing a hollow jack 3 on the pre-buried support rods 4 and establishing a working plane 1; the strength of the cushion layer concrete is C15;
step 2, carrying out hoisting construction of the novel assembled support 10 according to a lock head form of the ship lock, pre-assembling the novel assembled support 10 by matching with a hook bolt 17 and an inner template 12, and fixing the inner template 12 on the novel assembled support 10 through the hook bolt 17 to obtain a vertical die integral structure of the inner template 12 and the novel assembled support 10;
step 3, carrying out block and sectional construction on the lock head of the ship lock by adopting a step type layered pouring method; lifting a working plane 1 connected with the hollow jack 3 through the hollow jack 3, and connecting the inner template 12 and the vertical die integral structure of the novel assembly type support 10 with the hollow jack 3 through the lifting hook 2;
step 4, under the action of the lifting hook 2, installing an outer template 11, and fixedly connecting the outer template 11 with an inner template 12: dividing the outer template 11 into a template A8 and a template B9 according to the construction progress; hoisting a template A8 of an outer template 11 to the same horizontal installation height as the novel assembly type support 10 by using a hollow jack 3, placing a template B9 right below the template A8, and fixing the template A8 and the template B9 by using bolts; lifting the outer templates 11 and the inner templates 12 piece by using the lifting hooks 2, and lifting a group of the outer templates 11 and the inner templates 12 for climbing during each circulation; after the outer template 11 and the inner template 12 are lifted to the same set height at the same time, the outer template 11 and the inner template 12 in the same group are lifted in place, and the outer template 11 and the inner template 12 in the same group are fixed through the opposite pull rods, so that the assembly is completed;
and 5, pouring and vibrating a layer of concrete, checking the strength of the concrete at the lower part of the pier body, loosening the lifting hook 2 if the strength of the concrete is increased to the set strength, loosening bolts for fixedly connecting the template A8 and the template B9, and entering a cyclic construction stage: the novel assembled support 10 provided with the inner template 12 is hoisted at the next formwork height by using the lifting hook 2 as an inner mold by the hollow jack 3, and the outer template 11 is hoisted to the same horizontal plane of the inner template 12 by the hollow jack 3 through the lifting hook 2; after the next layer of outer templates 11 and the inner templates 12 are in place, fixing the outer templates 11 and the inner templates 12 in the same group through opposite pull rods; lifting the working plane 1 integrally, and pouring and vibrating the next layer of concrete; along with the concrete pouring, the hollow jack 3 is continuously lifted, the outer template 11 lifted by the lifting hook 2 is continuously turned over and climbed, the novel assembled support 10 is simultaneously lifted, the concrete is poured, and a vibrator is used for compaction until the construction reaches the top surface; after the concrete is finally set, sprinkling water for maintenance; the new fabricated support 10 is preformed in advance by a processing plant and then transported to the site.
Claims (8)
1. A self-lifting assembly form for a lock head empty box structural concrete, comprising: the novel lifting device comprises a hollow jack (3), a lifting hook (2), a working plane (1), a pre-buried supporting rod (4), a novel assembled support (10), an outer template (11) and an inner template (12); the embedded support rod (4) is arranged in the excavated earthwork before the cushion layer concrete is poured, the hollow jack (3) is arranged on the embedded support rod (4), and the working plane (1) is hung on the hollow jack (3); an inner template (12) is assembled on the novel assembly type support (10), the inner template (12) and the novel assembly type support (10) form a vertical die integral structure, and the vertical die integral structure is connected with the hollow jack 3 through a lifting hook (2); the novel assembly type support (10) assembled with the inner template (12) is fixed with the outer template (11) through a pair of pull rods; the hollow jack (3) comprises: the device comprises a reinforcing rod (5), a main beam (7), a cantilever (6) and a lifting hook (2); one end of the cantilever (6) is horizontally fixed on the embedded supporting rod (4), and one end of the cantilever (6) far away from the embedded supporting rod (4) is connected with the bottom of the main beam (7); the top end of the main beam (7) is fixedly connected with the upper surface of the cantilever (6) through a reinforcing rod (5); the upper end of the lifting hook (2) is connected with the hollow jack (3) through a cantilever (6), and the lower end of the lifting hook (2) is fixedly connected with a novel assembled support (10) assembled with an inner template (12) and an outer template (11) through an anchorage device; a hydraulic device is also arranged in the hollow jack (3);
novel assembled support (10) wholly is umbrella form, and novel assembled support (10) include: two cross bars (13), two push rods (14), a plurality of sliding devices (15), a main stress rod (16) and a rotating device (18); the top of a main stress rod (16) of the novel assembled support (10) is provided with a rotating device (18), and the left side and the right side of the hinge joint of the rotating device (18) are hinged with a cross rod (13); each cross rod (13) is fixedly connected with one inner template (12) through a hook bolt (17); the sliding device (15) positioned at one end of each push rod (14) is connected with the middle part of the cross rod (13) in a sliding way, and the sliding device (15) at the other end of each push rod (14) is connected with the main stress rod (16); the connection part of the sliding device (15) and the main stress rod (16) is positioned at the middle lower part of the main stress rod (16); each cross rod (13) forms a set included angle with a main stress rod (16) positioned in the middle of the novel assembled support (10) through a push rod (14) and a sliding device (15).
2. The self-lifting assembly form for a lock head empty box structural concrete according to claim 1, characterized in that: the lifting hook (2) is made of steel stranded wires; the hollow jack (3) is made of high-density alloy steel material; the outer template (11) is a steel template.
3. Self-lifting assembled formwork for a hollow box structural concrete of a lock according to claim 1, characterized in that the working plane (1) comprises: an operation platform and a safety net; the working platform is horizontally arranged and connected to the hollow jack (3); the safety net is arranged around the operation platform.
4. A self-lifting assembly form for a lock head empty box structural concrete according to claim 3, wherein: the working plane (1) is made of an iron pipe.
5. A self-lifting assembly formwork for a lock head empty box construction concrete according to claim 1, characterized in that the outer formwork (11) comprises: a template A (8) and a template B (9), wherein the template B (9) is arranged below the template A (8).
6. The construction method of the self-lifting assembly type formwork for the lock head empty box structure concrete is characterized by comprising the following steps of:
step 1, excavating earthwork, installing a pre-buried support rod (4) before pouring cushion layer concrete, and pouring the cushion layer concrete; after the cushion layer concrete is solidified and the pre-buried support rod (4) is stable, installing a hollow jack (3) on the pre-buried support rod (4) and establishing a working plane (1);
step 2, carrying out hoisting construction of the novel assembled support (10) according to a lock head form of the ship lock, pre-assembling the novel assembled support (10) by matching a hook bolt 17 with an inner template (12), and fixing the inner template (12) on the novel assembled support (10) through the hook bolt (17) to obtain a vertical die integral structure of the inner template (12) and the novel assembled support (10);
step 3, carrying out block and sectional construction on the lock head of the ship lock by adopting a step type layered pouring method; lifting a working plane (1) connected with the hollow jack (3) through the hollow jack (3), and connecting the whole vertical die structure of the inner die plate (12) and the novel assembly type support (10) with the hollow jack 3 through the lifting hook (2);
step 4, under the action of the lifting hook 2, installing an outer template (11), and fixedly connecting the outer template (11) with an inner template (12): dividing an outer template (11) into a template A (8) and a template B (9) according to the construction progress; hoisting a template A (8) of an outer template (11) to the same horizontal installation height as a novel assembly type support (10) by using a hollow jack (3), placing a template B (9) under the template A (8), and fixing the template A (8) and the template B (9) by using bolts; lifting the outer templates (11) and the inner templates (12) piece by using the lifting hooks (2), and lifting a group of the outer templates (11) and the inner templates (12) for climbing during each circulation; after the outer template (11) and the inner template (12) are lifted to the same set height, the outer template (11) and the inner template (12) in the same group are lifted in place, and the outer template and the inner template (12) in the same group are fixed through the opposite pull rod, so that the assembly is completed;
and 5, pouring and vibrating a layer of concrete, checking the strength of the concrete at the lower part of the pier body, loosening the lifting hook (2) if the strength of the concrete is increased to the set strength, loosening bolts for fixedly connecting the template A (8) and the template B (9), and entering a cyclic construction stage: the novel assembly type support (10) provided with the inner template (12) is lifted at the next formwork height by a lifting hook (2) to serve as an inner mold by the hollow jack (3), and the outer template (11) is lifted to the same horizontal plane of the inner template (12) by the hollow jack (3) through the lifting hook (2); after the next layer of outer templates (11) and the inner templates (12) are in place, fixing the outer templates (11) and the inner templates (12) in the same group through opposite pull rods; lifting the working plane (1) integrally, and pouring and vibrating the next layer of concrete; along with the concrete pouring, the hollow jack (3) is continuously lifted, the outer template (11) lifted by the lifting hook (2) is continuously turned over and climbed, the novel assembled support (10) is simultaneously lifted, the concrete is poured, and a vibrator is used for compaction until the construction is carried out to the top surface; and (3) after all pouring is completed and the concrete is finally set, sprinkling water for curing.
7. The construction method for the self-lifting assembly type formwork for the lock head empty box structure concrete according to claim 6, wherein the construction method comprises the following steps: the strength of the cushion concrete poured in the step 1 is C15.
8. The construction method for the self-lifting assembly type formwork for the lock head empty box structure concrete according to claim 6, wherein the construction method comprises the following steps: in the step 2, the novel fabricated support (10) is processed and formed in advance by a processing plant and then transported to the site.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210719188.XA CN115059041B (en) | 2022-06-23 | 2022-06-23 | Self-lifting assembled form for lock head empty box structure concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210719188.XA CN115059041B (en) | 2022-06-23 | 2022-06-23 | Self-lifting assembled form for lock head empty box structure concrete |
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| CN115059041A CN115059041A (en) | 2022-09-16 |
| CN115059041B true CN115059041B (en) | 2024-02-20 |
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| CN106032699A (en) * | 2015-03-11 | 2016-10-19 | 五冶集团上海有限公司 | An improved sliding form system inner and outer formwork supporting and fastening structure |
| CN109577206A (en) * | 2018-12-13 | 2019-04-05 | 杭州江润科技有限公司 | Hollow High Pier formwork system and construction method |
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