CN109551617B - Internal mold stripping structure for prefabricating hollow pier - Google Patents
Internal mold stripping structure for prefabricating hollow pier Download PDFInfo
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- CN109551617B CN109551617B CN201811565929.3A CN201811565929A CN109551617B CN 109551617 B CN109551617 B CN 109551617B CN 201811565929 A CN201811565929 A CN 201811565929A CN 109551617 B CN109551617 B CN 109551617B
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- template
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- inner frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/0002—Auxiliary parts or elements of the mould
- B28B7/0014—Fastening means for mould parts, e.g. for attaching mould walls on mould tables; Mould clamps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/28—Cores; Mandrels
- B28B7/30—Cores; Mandrels adjustable, collapsible, or expanding
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The invention discloses an inner mold stripping structure for prefabricating a hollow pier, which comprises an inner mold plate assembly, wherein the inner mold plate assembly comprises two long mold plates and two short mold plates, two sides of each short mold plate are integrally connected with a chamfer angle mold plate, and one side of each long mold plate, which is matched with the chamfer angle mold plate, is provided with a bolt hole for splicing; the inner template assembly also comprises an inner frame, the inner frame is positioned in the center of the inner template assembly, and telescopic devices are connected between the inner frame and the long template as well as between the inner frame and the short template; concave cavities are formed in the surfaces of the long template and the short template, which are opposite to one side of the inner frame; the mould removing device also comprises a mould removing channel positioned below the ground, wherein the bottom of the mould removing channel is provided with a central sliding frame, and the central sliding frame penetrates through the inner frame and is in sliding connection with the inner frame; a sling mechanism for slowly lowering the inner template assembly to the bottom of the form removal channel is arranged on the central sliding frame; and a lifting device is arranged in the form removal channel and used for lifting the central sliding frame. The invention can be used for removing the mould from the lower part and has the characteristics of high efficiency and safety.
Description
Technical Field
The invention relates to the field of manufacturing of prefabricated hollow piers, in particular to an inner mold stripping structure for a prefabricated hollow pier.
Background
The hollow pier column is a pier type commonly selected in cross-sea bridge engineering, the section height is generally more than 10 meters, the maximum height can reach 50 meters, and the section prefabrication height is also close to 20 meters. The construction process usually includes installation of bottom moulds, moulding beds and internal moulds, binding of reinforcing steel bars, installation of external moulds, concrete pouring and the like.
At present, the existing design scheme of the internal mold of the prefabricated hollow pier column is generally in a single form of assembling and disassembling. When the steel bar binding and fixing device is installed, the inner die is assembled on the bottom die, the templates are connected through bolts, then the templates are fixedly connected with the central beam of the bottom die, and then steel bars are bound, and the outer die is installed. After pouring is finished, the connecting bolts between the templates are loosened, and then the inner templates are lifted out of the inner cavity of the pier column one by one until all the inner templates are removed.
By adopting the existing mode, when the inner die is dismounted each time, the inner die needs to be sequentially lifted out block by block from the upper opening of the inner cavity, and the template dismounting operators are positioned below the lifting template, so that serious potential safety hazards exist, and safety regulations are not met. In addition, need frequently use the lifting device when demolising the centre form at every turn, demolish the process consuming time longer, efficiency is lower, and when interior template quantity was not enough, the interior template of last pier stud often need be used to next pier stud, and the long form removal mode consuming time can directly influence the engineering progress like this.
Disclosure of Invention
The invention aims to provide an inner mould stripping structure for a prefabricated hollow pier, which can be used for stripping from the lower part and has the characteristics of safety and high efficiency.
The above object of the present invention is achieved by the following technical solutions: an inner mold stripping structure for prefabricating a hollow pier comprises an inner mold plate assembly, wherein the inner mold plate assembly comprises two long mold plates and two short mold plates, chamfering mold plates are integrally connected to two sides of each short mold plate, and the two long mold plates, the two short mold plates and the four chamfering mold plates are enclosed to form the inner mold plate of the hollow pier column; one side of the long template, which is matched with the chamfer template, is provided with a bolt hole for splicing; the inner template assembly also comprises an inner frame, the inner frame is positioned in the center of the inner template assembly, and telescopic devices are connected between the inner frame and the long template as well as between the inner frame and the short template; concave cavities are formed in the surfaces of the long template and the short template, which are opposite to one side of the inner frame; the mould removing device comprises an inner frame, a mould removing channel and a central sliding frame, wherein the mould removing channel is positioned below the ground, the bottom of the mould removing channel is provided with the central sliding frame, the central sliding frame extends upwards to a position above the uppermost inner mould plate component, and the central sliding frame penetrates through the inner frame and is in sliding connection with the inner frame; a sling mechanism for slowly lowering the inner template assembly to the bottom of the form removal channel is arranged on the central sliding frame; and a lifting device is arranged in the form removal channel and used for lifting the central sliding frame.
By adopting the technical scheme, when the inner template is installed, the central sliding frame is hung and arranged at the bottom of the form removal channel and fixed, and then the moulding bed and the inner template of the hollow pier are installed. The inner template component adopting the scheme has the following advantages: the long template, the short template, the chamfer template of interior template subassembly all pass through telescoping device and inner frame connection, only need before the installation with long template and short template adjustment target in place, through bolted connection good long template and chamfer template, hoist whole interior template subassembly again, through the inner frame casing on central balladeur train, slide again and can lay target in place to the bottom, the next interior template subassembly superposes one by one, installs comparatively laborsavingly. When dismantling the interior sheathing, only need earlier take in long template to inside casing one side through telescoping device, rethread telescoping device will shorten the template and take in to inside casing one side for the space of whole interior sheathing subassembly occupies the significantly reduced, rethread hoist cable mechanism with interior sheathing subassembly slowly transfer can, because interior sheathing subassembly space occupies the reduction, the interior sheathing subassembly passes the opening that form removal passageway and hollow pier stud are connected and transfers to the bottom of central balladeur train. When the inner template assembly quickly reaches the bottom of the central sliding frame, the central sliding frame is lifted upwards through the lifting device, so that the inner template assembly completely falls to the bottom of the form removal channel, and at the moment, a worker can directly convey the whole inner template assembly out through the form removal channel. When the scheme is adopted for removing the formwork, the size of the inner formwork assembly is greatly reduced, and the inner formwork assembly is more convenient to remove. And because all be equipped with the cavity on long template and the short template, when hollow pier stud was pour, the concrete pours into and forms the concrete piece in the cavity for even the interior formwork component with the below demolishs earlier, the interior curtain board subassembly of top still receives the fixed action of this concrete piece, can not produce and fall, has improved the security of using. The inner formwork component below is firstly detached, so that the space of the lower side is greatly increased, and the operation of workers is more convenient.
The invention is further configured to: and a trolley is arranged at the bottom of the form removal channel.
Through adopting above-mentioned technical scheme, when lifting central balladeur train, can promote the shallow to central balladeur train under for on the interior form assembly can just in time transfer the shallow, the demolish of the interior form assembly of being more convenient for.
The invention is further configured to: the cross section of the concave cavity is rectangular.
Through adopting above-mentioned technical scheme, correspond fashioned concrete piece and be square, this cooperation shape for can not skid between cavity and the concrete piece, it is fixed firm reliable.
The invention is further configured to: the concave cavity is formed by welding steel plates.
By adopting the technical scheme, the concave cavity is formed by welding the steel plates, so that the strength is high and the concave cavity is not easy to damage.
The invention is further configured to: the lifting device is a hydraulic press provided with a mechanical clamping jaw.
Through adopting above-mentioned technical scheme, through mechanical clamping jaw centre gripping center balladeur train, rethread hydraulic press drive mechanical clamping jaw rises for the center balladeur train can stably shift up, and because the inside casing of the interior formwork component of top all with center balladeur train adaptation, also can play the effect of central location.
The invention is further configured to: the telescopic device comprises a rotating sleeve with internal threads and a push rod in threaded connection with the rotating sleeve, and the end part of the push rod is connected with the corresponding long template or the short template; the rotating sleeve is rotatably connected with the inner frame.
By adopting the technical scheme, the rotating sleeve is rotatably connected with the inner frame, and when the rotating sleeve is rotated, the rotating sleeve does not axially move, so that the ejector rod axially displaces, the corresponding long template or the corresponding short template is pressed before the inner template assembly is installed, and then the rotating sleeve is rotated, so that the position of the corresponding long template or the corresponding short template relative to the inner frame can be adjusted; in the concrete pouring process, the rotating sleeve is in threaded connection with the ejector rod and cannot be axially compressed, so that the concrete pouring device has better stress resistance; when the inner formwork assembly is disassembled, the bolt between the long formwork and the chamfering formwork is firstly taken down, and the inner frame is limited by the central sliding frame, so that the long formwork or the short formwork can move to the side of the inner frame by rotating the rotating sleeve in the opposite direction, and the long formwork or the short formwork can be separated from the concrete more conveniently.
The invention is further configured to: the outer wall of inside casing is equipped with the mount pad, and the mount pad is equipped with the rotation groove, the notch department that rotates the groove is equipped with spacing protruding edge, it is equipped with the swivel becket bottom to rotate the cover, swivel becket swivelling joint is in rotating the groove.
Through adopting above-mentioned technical scheme, rotate the groove and form swivelling joint with the swivel becket cooperation, spacing protruding edge then is used for blockking the swivel becket for this rotation cover can't axial break away from and rotates the groove.
The invention is further configured to: two telescopic devices are connected between each long template or each short template and the outer frame.
By adopting the technical scheme, the connection strength between the inner frame and the corresponding long template or short template can be improved.
The invention is further configured to: and an inclined support is fixedly connected between the short template and the chamfer template.
By adopting the technical scheme, the stress resistance of the chamfering template can be effectively improved.
In conclusion, the beneficial technical effects of the invention are as follows:
1. the installation of the inner template is convenient;
2. the inner formwork component can be detached from the lower part;
3. when the inner template component is disassembled from the lower part, the upper inner template component is fixed, so that the safety is high;
4. make things convenient for the interior sheathing subassembly to dismantle, the simple operation is high-efficient.
Drawings
Fig. 1 is a schematic structural view of an inner formwork assembly in the present embodiment;
FIG. 2 is a schematic structural view of the inner mold plate assembly in the contracted state according to the present embodiment;
FIG. 3 is an enlarged schematic view of portion A of FIG. 2;
FIG. 4 is a schematic cross-sectional view of an inner mold plate assembly of the present embodiment;
FIG. 5 is a first schematic diagram illustrating the operation status of the present embodiment;
fig. 6 is a schematic diagram of the second working state of the present embodiment.
Description of reference numerals: 1. an inner formwork assembly; 2. a long template; 3. a short template; 4. chamfering the template; 5. an inner frame; 6. a telescoping device; 7. a concave cavity; 8. removing the mold channel; 9. a center carriage; 10. a sling mechanism; 11. a hoisting device; 12. pushing a cart; 13. rotating the sleeve; 14. a top rod; 15. a mounting seat; 16. a rotating groove; 17. a limiting convex edge; 18. a rotating ring; 19. and (5) obliquely supporting.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b):
the utility model provides an centre form structure of tearing open for prefabricating hollow mound, includes interior template component, and interior template component's structure is shown as figure 1-2, includes two long templates and two short templates, and the both sides an organic whole of short template are connected with the chamfer template, fixedly connected with bearing diagonal between short template and the chamfer template. The two long templates, the two short templates and the four chamfer angle templates are enclosed to form an inner template of the hollow pier stud; one side of the long template, which is matched with the chamfer template, is provided with a bolt hole (not shown in the figure) for splicing;
as shown in fig. 1, concave cavities are formed in the surfaces of the long template and the short template on the sides back to the inner frame; the concave cavity is a rectangular cavity which is formed by welding steel plates. The cavity is used for enabling concrete to be injected into the cavity to form a concrete block when the concrete is poured.
As shown in fig. 2, the inner formwork assembly further comprises an inner frame, the inner frame is located in the center of the inner formwork assembly, and telescopic devices are connected between the inner frame and the long formwork as well as between the inner frame and the short formwork; the telescopic device can be one or more.
As shown in fig. 2-3, the telescoping device comprises a rotating sleeve with internal threads and a top rod in threaded connection with the rotating sleeve, the end of the top rod is fixedly connected with a corresponding long template or a corresponding short template, a rotating ring is arranged at the bottom of the rotating sleeve, a mounting seat is arranged on the outer wall of an inner frame, a rotating groove is arranged on the mounting seat, a limiting convex edge is arranged at the notch of the rotating groove, and the rotating ring is rotatably connected with the rotating groove. The corresponding long template or the short template can be moved in position by synchronously rotating the rotating sleeves of the two telescopic devices correspondingly connected with the long template or the short template. In order to facilitate the connection of the mounting seat and the rotating sleeve, the mounting seat can be arranged into a two-half splicing structure and is fixed with the inner frame in a splicing and re-welding mode. Alternatively, the telescopic device can also adopt a hydraulic jack in the prior art, the bottom of the hydraulic jack is fixedly connected with the inner frame, and the piston rod of the hydraulic jack is connected with the corresponding long template or the short template.
As shown in fig. 5-6, the device further comprises a stripping channel located below the ground, wherein a central sliding frame is mounted at the bottom of the stripping channel, extends upwards to above the uppermost inner die plate component, and penetrates through the inner frame and is in sliding connection with the inner frame; a sling mechanism for slowly lowering the inner template assembly to the bottom of the form removal channel is arranged on the central sliding frame; the sling mechanism can be a chain block or other mechanical equipment which can fix the inner formwork component through a sling and lift the inner formwork component. A lifting device is arranged in the stripping channel and used for lifting the central sliding frame. Preferably, the lifting device is preferably, but not limited to, a hydraulic press provided with mechanical jaws, and may also be a lifting device. And a trolley is also arranged at the bottom of the form removal channel.
The use state of the present embodiment is as follows: when the inner template assembly is installed, the central sliding frame is hung and installed at the bottom of the form removal channel and fixed, and then the jig frame of the hollow pier and the inner template assembly are installed. The long template, the short template and the chamfer template of the inner template assembly are adjusted in place before installation, the long template and the chamfer template are connected through bolts, the whole inner template assembly is lifted up, the inner frame sleeves the central sliding frame, the inner template assembly slides to the bottom, and the next inner template assembly is stacked one by one.
When dismantling the interior sheathing, earlier through telescoping device with long template to inside casing one side income, rethread telescoping device with short template to inside casing one side income for the space of whole interior sheathing subassembly occupies the significantly reduced, rethread hoist cable mechanism with interior sheathing subassembly slowly transfer can, because interior sheathing subassembly space occupies the reduction, the interior sheathing subassembly passes the opening of form removal passageway and hollow pier stud connection and transfers to the bottom of central balladeur train. When the inner template assembly quickly reaches the bottom of the central sliding frame, the central sliding frame is lifted upwards through the lifting device; pushing the cart to be right below the central sliding frame, so that the inner template assembly can be just placed on the cart; at the moment, the worker can directly convey the whole inner die plate assembly out through the die removing channel. When the scheme is adopted for removing the formwork, the size of the inner formwork assembly is greatly reduced, and the inner formwork assembly is more convenient to remove. And because all be equipped with the cavity on long template and the short template, when hollow pier stud was pour, the concrete pours into and forms the concrete piece in the cavity for even the interior formwork component with the below demolishs earlier, the interior curtain board subassembly of top still receives the fixed action of this concrete piece, can not produce and fall, has improved the security of using. The inner formwork component below is firstly detached, so that the space of the lower side is greatly increased, and the operation of workers is more convenient.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (8)
1. The utility model provides an centre form structure of demolising for prefabricating hollow mound which characterized in that: the inner formwork comprises an inner formwork component (1), wherein the inner formwork component (1) comprises two long formworks (2) and two short formworks (3), chamfering formworks (4) are integrally connected to two sides of each short formwork (3), and the two long formworks (2), the two short formworks (3) and the four chamfering formworks (4) are enclosed to form an inner formwork of the hollow pier stud; one side of the long template (2) matched with the chamfer template (4) is provided with a bolt hole for splicing; the inner formwork component (1) further comprises an inner frame (5), the inner frame (5) is located in the center of the inner formwork component (1), and telescopic devices (6) are connected between the inner frame (5) and the long formwork (2) and between the inner frame (5) and the short formwork (3); concave cavities (7) are formed in the surfaces of one sides, back to the inner frame (5), of the long template (2) and the short template (3); the mould removing device is characterized by further comprising a mould removing channel (8) located below the ground, wherein a central sliding frame (9) is mounted at the bottom of the mould removing channel (8), the central sliding frame (9) extends upwards to a position above the uppermost inner mould plate component (1), and the central sliding frame (9) penetrates through the inner frame (5) and is in sliding connection with the inner frame (5); a sling mechanism (10) for slowly lowering the inner die plate component (1) to the bottom of the form removal channel (8) is arranged on the central sliding frame (9); a lifting device (11) is arranged in the form removal channel (8) and used for lifting the central sliding frame (9); the telescopic device (6) comprises a rotating sleeve (13) with internal threads and an ejector rod (14) in threaded connection with the rotating sleeve (13), and the end part of the ejector rod (14) is connected with the corresponding long template (2) or short template (3); the rotating sleeve (13) is rotatably connected with the inner frame (5).
2. An internal mold stripping structure for prefabricated hollow piers according to claim 1, wherein: and a trolley (12) is arranged at the bottom of the form removal channel (8).
3. An internal mold stripping structure for prefabricated hollow piers according to claim 1, wherein: the cross section of the concave cavity (7) is rectangular.
4. An internal mold stripping structure for prefabricated hollow piers according to claim 3, wherein: the concave cavity (7) is formed by welding steel plates.
5. An internal mold stripping structure for prefabricated hollow piers according to claim 1, wherein: the hoisting device (11) is a hydraulic press provided with a mechanical clamping jaw.
6. An internal mold stripping structure for prefabricated hollow piers according to claim 1, wherein: the outer wall of inside casing (5) is equipped with mount pad (15), and mount pad (15) are equipped with and rotate groove (16), the notch department that rotates groove (16) is equipped with spacing protruding edge (17), it is equipped with swivel becket (18) to rotate cover (13) bottom, swivel becket (18) swivelling joint is in rotating groove (16).
7. An internal mold stripping structure for prefabricated hollow piers according to claim 6, wherein: two telescopic devices (6) are connected between each long template (2) or each short template (3) and the outer frame.
8. An internal mold stripping structure for prefabricated hollow piers according to claim 1, wherein: an inclined support (19) is fixedly connected between the short template (3) and the chamfering template (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565929.3A CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811565929.3A CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
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| Publication Number | Publication Date |
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| CN109551617A CN109551617A (en) | 2019-04-02 |
| CN109551617B true CN109551617B (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811565929.3A Active CN109551617B (en) | 2018-12-20 | 2018-12-20 | Internal mold stripping structure for prefabricating hollow pier |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111716501B (en) * | 2020-06-22 | 2021-04-20 | 中冶建工集团有限公司 | Method for disassembling internal mold supporting rod |
| CN113756197A (en) * | 2021-09-14 | 2021-12-07 | 保利长大工程有限公司 | UHPC (ultra high performance polycarbonate) segment box girder template suitable for complex variable cross section |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203334190U (en) * | 2013-06-25 | 2013-12-11 | 中交一公局第六工程有限公司 | Thin-wall hollow pillar integral elevation model turning device |
| CN104695332A (en) * | 2014-09-22 | 2015-06-10 | 重庆巨能建设集团路桥工程有限公司 | Hollow thin-walled pier internal mold bolt ejection removal technology |
| CN204456880U (en) * | 2015-02-03 | 2015-07-08 | 山东瑞鸿重工机械有限公司 | Hollow pier internal mold fast dismantling is except pull plate |
| CN205062665U (en) * | 2015-08-27 | 2016-03-02 | 北京联东投资(集团)有限公司 | Hollow pier stud centre form |
| JP2017534008A (en) * | 2015-09-18 | 2017-11-16 | 河海大学 | Assembling-type reinforced concrete pier column member |
-
2018
- 2018-12-20 CN CN201811565929.3A patent/CN109551617B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203334190U (en) * | 2013-06-25 | 2013-12-11 | 中交一公局第六工程有限公司 | Thin-wall hollow pillar integral elevation model turning device |
| CN104695332A (en) * | 2014-09-22 | 2015-06-10 | 重庆巨能建设集团路桥工程有限公司 | Hollow thin-walled pier internal mold bolt ejection removal technology |
| CN204456880U (en) * | 2015-02-03 | 2015-07-08 | 山东瑞鸿重工机械有限公司 | Hollow pier internal mold fast dismantling is except pull plate |
| CN205062665U (en) * | 2015-08-27 | 2016-03-02 | 北京联东投资(集团)有限公司 | Hollow pier stud centre form |
| JP2017534008A (en) * | 2015-09-18 | 2017-11-16 | 河海大学 | Assembling-type reinforced concrete pier column member |
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| CN109551617A (en) | 2019-04-02 |
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