CN210117927U - Combined steel formwork for concrete beam with large cross section - Google Patents
Combined steel formwork for concrete beam with large cross section Download PDFInfo
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- CN210117927U CN210117927U CN201920736444.XU CN201920736444U CN210117927U CN 210117927 U CN210117927 U CN 210117927U CN 201920736444 U CN201920736444 U CN 201920736444U CN 210117927 U CN210117927 U CN 210117927U
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Abstract
The utility model discloses a combined steel form for a concrete beam with a large cross section, which comprises a left side form, a right side form and a lower die, wherein the side forms and the lower die are made of steel plates and are supported, and the side forms and the lower die are respectively fixed on the original concrete of the old beam or welded and fixed on a newly-added reinforcing steel bar net anchored with the old beam by a bar-planting fixing component; therefore, a structural member of a support system is not needed, the structure can be greatly simplified, the cost is reduced, and the economic benefit is remarkable; the steel part can be more accurate in butt joint size, the butt joint structures can be tightly combined, the casting effect is better, the butt joint gap is small and flat, slurry leakage is not easy to occur, and the casting effect is attractive; because the steel part has good rigidity and strong durability, does not need to be as thick as a wooden template, has small volume, is more convenient for combination and installation and has longer service life.
Description
Technical Field
The utility model belongs to the technical field of the architectural equipment, in particular to a combination formula steel form that is used for concrete beam to increase cross-section.
Background
When an existing building is reconstructed, the concrete beam is often required to be subjected to section enlarging treatment so as to increase the bearing performance of the old beam; a formwork is needed at this time, the formwork is generally formed by splicing templates, is coated and fixed on the periphery of the old beam, and has a grouting space with the outer surface of the old beam; after the formwork is fixed, concrete slurry is poured into the space, the section of the old beam is enlarged after the concrete is solidified, a new reinforcing mesh is arranged around the old beam in the grouting space, and after the slurry is solidified, the new reinforcing mesh is combined with the concrete, so that the stress performance can be improved.
However, the existing formwork for the concrete beam with the large section is generally formed by wood formworks, and the wood formworks have poor turnover, accuracy and surface finish and are easy to deform; and conventional combination formula die carrier is bulky, needs external force to support, consequently also need set up a lot of support columns, supports subaerial, and the structure is comparatively complicated, and is with high costs and be not convenient for and the installation.
SUMMERY OF THE UTILITY MODEL
In order to overcome the not enough of prior art existence, the utility model provides a combination formula steel form for concrete beam adds large cross-section, side form and lower mould are all through fixed subassembly snap-on of bar planting on the former concrete of old roof beam or on the reinforcing bar net, do not need support system, reduce cost.
The utility model provides a technical scheme that its technical problem adopted is:
a combined steel formwork for a concrete beam with a large cross section comprises a side formwork, a lower formwork and a steel bar planting fixing assembly; the lower die is arranged on the lower side of the old beam; the side molds are arranged on the left side and the right side of the old beam; the side die and the lower die are both provided with bar planting through holes; the embedded steel bar fixing assembly is matched with the embedded steel bar through hole and is used for fixing the side die and the lower die on original concrete of the old beam or welding and fixing the side die and the lower die on a newly-added steel bar net anchored with the old beam; a lower die is fixedly connected with the left side die and the right side die in a sealing assembly mode to form a combined steel die frame.
The combined steel formwork for the concrete beam with the enlarged cross section comprises a left side formwork, a right side formwork and a lower formwork, wherein the side formworks and the lower formwork are made of steel plates and supported, and the side formworks and the lower formwork are respectively fixed on original concrete of an old beam through a steel bar embedding fixing assembly or fixed on a newly-added steel bar net anchored with the old beam in a welding mode; therefore, a structural member of a support system is not needed, the structure can be greatly simplified, the cost is reduced, and the economic benefit is remarkable; the steel part can be more accurate in butt joint size, the butt joint structures can be tightly combined, the casting effect is better, the butt joint gap is small and flat, and the slurry leakage is not easy to occur, and the casting effect is attractive; because the steel part has good rigidity and strong durability, does not need to be as thick as a wooden template, has small volume, is more convenient for combination and installation and has longer service life.
Preferably, the side form comprises a plurality of side form plates, and every two adjacent side form plates are fixedly connected in a sealing assembly manner to form the side form. If the length of the beam body is longer, the corresponding side die is also lengthened, and in order to facilitate transportation, the long side film can be divided into a plurality of side film plates to be assembled, so that convenience is brought.
Preferably, the lower die is in the shape of an inverted cover, the middle of the lower die is downwards sunken, flange parts extend upwards around the lower die, the flange parts on two sides are side flange parts, and the upper end surfaces of the side flange parts are used for being fixedly connected with the lower end surfaces of the left and right side dies in a sealing assembly manner; the flange part of front end is preceding flange portion, and the flange part of rear end is the back flange portion, and the up end of preceding, back flange portion all is used for with the lower terminal surface of old roof beam butt seal. The lower die is in a cover shape with an inverted buckle and is provided with a recess, so that the bottom of the lower die can bear larger mud gravity, and the mud is easily extruded out under the action of gravity due to the flat conventional lower die; the lower die is sunken, and the sunken edge does not have a gap, so that slurry is not easy to leak.
Preferably, the lower die comprises a front lower template, at least one middle lower template and a rear lower template; the front lower template is provided with a front flange part, the rear lower template is provided with a rear flange part, and side flange parts are arranged on two sides of the front lower template, the rear lower template and the middle lower template; the front lower template, the at least one middle lower template and the rear lower template are fixedly connected in a sealing assembly mode to assemble the lower die. When the beam body is very long, the corresponding needs of the lower die are very long, and the lower die is formed by connecting a plurality of lower die plates in an assembling mode, so that convenience is brought.
Preferably, the splicing seams of the steel form are provided with ribs for sealing, splicing and fixing, the ribs are provided with rib through holes, the ribs and the ribs are spliced to form splicing seams, and the ribs are fixedly connected through anchor bolts or steel form clamps or screws. The butt joint plane of the rib is generally a plane, and the sealing performance can be improved while limiting butt joint by using stepped butt joint surfaces which are mutually matched and designed; meanwhile, the rib edge can adopt some conventional reinforcing designs, so that the rib edge is not easy to deform.
Preferably, the bar planting fixing component comprises an anchor rod, a butterfly buckle and a steel pipe used as a stressed framework; one end of the anchor rod extends into the bar-planting through hole and is used for fixing the bar-planting on the original concrete of the old beam or welding and fixing on a newly-added bar net anchored with the old beam; the steel pipe is provided with a through hole, the other end of the anchor rod penetrates through the through hole of the steel pipe, and the steel pipe is locked on the outer side face of the side die or the lower die through a butterfly buckle.
Preferably, the butterfly buckle corresponding to the lower die is locked to be a double steel pipe. The lower die bears larger gravity, so the lower die is preferably a double-steel tube; of course, in some embodiments, even a single steel pipe can supplement the stress capacity by increasing the number of the bar planting fixing assemblies arranged on the lower side surface of the lower die.
Preferably, the axis of the steel pipe arranged on the lower die is in the front-back direction; the axis of the steel pipe arranged on the side die is in the vertical direction. The corresponding bearing capacity is stronger.
Preferably, the horizontal plane of the upper end surface of the side mold is lower than the upper end of the old beam, and a grouting gap is formed. The grouting gap is used for pouring concrete slurry between the inner side surface of the steel formwork and the old beam from the outside; in some embodiments, the grouting hole can be directly formed at the upper end of the side film without leaving a grouting gap.
The utility model has the advantages that: the utility model discloses a combined steel form for concrete beam adds large cross-section, including left and right two side forms, a lower mould, side form and lower mould are made of steel plate, fix side form and lower mould respectively the planting bar on the former concrete of old roof beam or weld fix on the new steel bar net that adds with the old roof beam anchor through planting bar fixed subassembly; therefore, a structural member of a support system is not needed, the structure can be greatly simplified, the cost is reduced, and the economic benefit is remarkable; the steel part can be more accurate in butt joint size, the butt joint structures can be tightly combined, the casting effect is better, the butt joint gap is small and flat, and the slurry leakage is not easy to occur, and the casting effect is attractive; because the steel part has good rigidity and strong durability, does not need to be as thick as a wooden template, has small volume, is more convenient for combination and installation and has longer service life.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of a combined steel form for a concrete beam with a large cross section according to the present invention;
fig. 2 is a schematic cross-sectional view a-a of fig. 1.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the description of the present application, it is to be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention. In the description of the present application, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
As shown in fig. 1 and 2, the combined steel formwork for a concrete beam with an enlarged cross section comprises a side formwork 1, a lower formwork 2 and a steel bar planting fixing component 3; the lower die 2 is arranged on the lower side of the old beam 10; the side moulds 1 are arranged on the left side and the right side of the old beam 10; the side die 1 and the lower die 2 are both provided with bar planting through holes 4; the embedded bar fixing component 3 is matched with the embedded bar through hole 4 and is used for fixing the side die 1 and the lower die 2 on original concrete of the old beam 10 or welding and fixing the embedded bars on a new reinforced bar net (not shown) anchored with the old beam; a lower die 2 is fixedly connected with the left side die 1 and the right side die 1 in a sealing and assembling way to form a combined steel die frame.
The combined steel formwork for the concrete beam with the enlarged cross section comprises a left side die 1, a right side die 1 and a lower die 2, wherein the side dies 1 and the lower die 2 are made of steel plates, and the side dies 1 and the lower die 2 are respectively fixed on original concrete of an old beam 10 in an embedded steel bar fixing component 3 or fixed on a new reinforcing mesh anchored with the old beam 10 in a welding manner; therefore, a structural member of a support system is not needed, the structure can be greatly simplified, the cost is reduced, and the economic benefit is remarkable; the template is made of steel, so that the butt joint size can be more accurate, the butt joint structures can be tightly combined, the casting effect is better, the butt joint gap is small and flat, and the slurry leakage casting effect is not easy to occur; because the steel part has good rigidity and strong durability, does not need to be as thick as a wooden template, has small volume, is more convenient for combination and installation and has longer service life.
Preferably, the side form 1 comprises a plurality of side form plates 11, and every two adjacent side form plates 11 are hermetically assembled and fixedly connected to form the side form 1. If the length of the beam body (i.e. the length of the old beam 10 to be modified) is longer, the corresponding side die 1 should also be lengthened, and for the convenience of transportation, the long side film 1 can be divided into a plurality of side film plates 11 for assembly, so that the transportation is facilitated.
As shown in fig. 2, preferably, the lower mold 2 is in the shape of an inverted cover, the middle of the lower mold is downwardly concave, the periphery of the lower mold is upwardly extended with flange parts, the flange parts on both sides are side flange parts, and the upper end surfaces of the side flange parts are used for being fixedly connected with the lower end surfaces of the left and right molds 1 in a sealing assembly manner; the front flange part is a front flange part, the rear flange part is a rear flange part, and the upper end surfaces of the front flange part and the rear flange part are used for abutting and sealing with the lower end surface of the old beam 10. The lower die 2 is in a cover shape of an inverted buckle and is provided with a recess, so that the bottom of the lower die 2 can bear larger mud gravity, and the mud is easily extruded out under the action of gravity due to the flat lower die 2 in the conventional mode; the lower die 2 is concave, and the edge of the concave is not provided with a gap, so that slurry is not easy to leak.
Preferably, the lower die 2 comprises a front lower template 21, at least one middle lower template 22 and a rear lower template 23; the front lower template 21 is provided with a front flange part, the rear lower template 23 is provided with a rear flange part, and side flange parts are arranged on two sides of the front lower template 21, the rear lower template 23 and the middle lower template 22; the front lower template 21, at least one middle lower template 22 and one rear lower template 23 are connected in a sealing, assembling and fixing mode to assemble the lower die 2. When the beam body is long, the lower die 2 is correspondingly long and is formed by assembling a plurality of lower die plates, so that the transportation is convenient; the number of the middle and lower templates 22 can be increased according to the actual required length.
Preferably, the splicing seams of the steel form are provided with ribs 5 for sealing, splicing and fixing, the ribs 5 are provided with rib through holes 6, the mutually spliced ribs 5 are spliced to form splicing seams, and the ribs 5 are fixedly connected and spliced through anchor bolts or steel form clamps or screws. The butt joint plane of the rib 5 is generally a plane, and certainly, stepped butt joint surfaces which are mutually matched can be used, so that the sealing performance can be improved while the butt joint is limited; meanwhile, the rib 5 can adopt some conventional reinforcing designs, so that the rib 5 is not easy to deform. Meanwhile, the side surfaces of the lower die and the side die can be provided with reinforcing ribs, so that the strength is improved, and the lower die and the side die are not easy to deform. In addition to the sealed, assembled, fixed connection formed by the ribs, in other embodiments, other sealing connections may be used.
Preferably, the bar-planting fixing component 3 comprises an anchor rod 31, a butterfly buckle 33 and a steel pipe 32 used as a stress framework; one end of the anchor rod 31 extends into the bar-planting through hole 4 and is used for fixing the bar planting on the original concrete of the old beam 10 or welding and fixing on a newly-added steel bar net anchored with the old beam; the steel pipe 32 is provided with a through hole, the other end of the anchor rod 31 penetrates through the through hole of the steel pipe, and the steel pipe 32 is locked on the outer side surface of the side die 1 or the lower die 2 through a butterfly buckle 33.
Preferably, the butterfly buckle 33 corresponding to the lower mold 2 is locked as the double steel pipe 32. The lower die bears a larger gravity, so the double steel pipe 32 is preferable; of course, in some embodiments, even a single steel tube 32 can supplement the stress capability by increasing the number of the bar-planting fixing assemblies 3 arranged on the lower side surface of the lower die 2.
Preferably, the axis of the steel pipe 32 arranged on the lower die 2 is in the front-back direction; the axis of the steel pipe 32 arranged on the side die 1 is in the up-and-down direction. The corresponding bearing capacity is stronger.
Preferably, the upper end surface of the side form 1 is located at a level lower than the upper end of the old beam 10, and a grout gap 13 is formed. The grouting gap 13 is used for pouring concrete slurry between the inner side surface of the steel formwork and the old beam 10 from the outside; in some embodiments, a grouting hole (not shown) may be directly formed at the upper end of the side film 1 without leaving the grouting gap 13.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (9)
1. The utility model provides a combination formula steel form for concrete beam adds large cross-section which characterized in that: the combined steel formwork comprises a side die, a lower die and a bar planting fixing assembly; the lower die is arranged on the lower side of the old beam; the side molds are arranged on the left side and the right side of the old beam; the side die and the lower die are both provided with bar planting through holes; the embedded steel bar fixing assembly is matched with the embedded steel bar through hole and is used for fixing the side die and the lower die on original concrete of the old beam or welding and fixing the side die and the lower die on a newly-added steel bar net anchored with the old beam; a lower die is fixedly connected with the left side die and the right side die in a sealing assembly mode to form a combined steel die frame.
2. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 1, wherein: the side mold comprises a plurality of side mold plates, and every two adjacent side mold plates are fixedly connected in a sealing assembly mode to form the side mold.
3. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 1, wherein: the lower die is in a cover shape of an inverted buckle, the middle of the lower die is sunken downwards, flange parts extend upwards on the periphery of the lower die, the flange parts on the two sides are side flange parts, and the upper end surfaces of the side flange parts are used for being fixedly connected with the lower end surfaces of the left and right dies in a sealing assembly manner; the flange part of front end is preceding flange portion, and the flange part of rear end is the back flange portion, and the up end of preceding, back flange portion all is used for with the lower terminal surface of old roof beam butt seal.
4. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 1, wherein: the lower die comprises a front lower template, at least one middle lower template and a rear lower template; the front lower template is provided with a front flange part, the rear lower template is provided with a rear flange part, and side flange parts are arranged on two sides of the front lower template, the rear lower template and the middle lower template; the front lower template, the at least one middle lower template and the rear lower template are fixedly connected in a sealing assembly mode to assemble the lower die.
5. A modular steel form for concrete beams of enlarged cross-section according to any one of claims 1 to 4, characterised in that: the splicing seam of the steel form is provided with a rib which is used for sealing and splicing fixed connection, the rib is provided with a rib through hole, the rib and the rib are spliced to form a splicing seam, and the rib is fixedly connected and spliced through an anchor bolt or a steel form clamp or a screw.
6. A modular steel form for concrete beams of enlarged cross-section according to any one of claims 1 to 4, characterised in that: the bar planting fixing component comprises an anchor rod, a butterfly buckle and a steel pipe used as a stressed framework; one end of the anchor rod extends into the bar-planting through hole and is used for fixing the bar-planting on the original concrete of the old beam or welding and fixing on a newly-added bar net anchored with the old beam; the steel pipe is provided with a through hole, the other end of the anchor rod penetrates through the through hole of the steel pipe, and the steel pipe is locked on the outer side face of the side die or the lower die through a butterfly buckle.
7. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 6, wherein: and the butterfly buckle corresponding to the lower die is locked into a double steel pipe.
8. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 6, wherein: the axis of the steel pipe arranged on the lower die is in the front-back direction; the axis of the steel pipe arranged on the side die is in the vertical direction.
9. The modular steel form for enlarged cross-section of concrete beam as claimed in claim 1, wherein: the horizontal plane of the upper end surface of the side mold is lower than the upper end of the old beam, and a grouting gap is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920736444.XU CN210117927U (en) | 2019-05-21 | 2019-05-21 | Combined steel formwork for concrete beam with large cross section |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920736444.XU CN210117927U (en) | 2019-05-21 | 2019-05-21 | Combined steel formwork for concrete beam with large cross section |
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| Publication Number | Publication Date |
|---|---|
| CN210117927U true CN210117927U (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920736444.XU Active CN210117927U (en) | 2019-05-21 | 2019-05-21 | Combined steel formwork for concrete beam with large cross section |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029814A (en) * | 2019-05-21 | 2019-07-19 | 广州交投城市道路建设有限公司 | A kind of combined steel mould bases for beams of concrete enlarging section |
| CN114086553A (en) * | 2022-01-24 | 2022-02-25 | 中铁十八局集团有限公司 | Deep basal pit module builds side wall and uses anchoring device with concrete vibration design |
-
2019
- 2019-05-21 CN CN201920736444.XU patent/CN210117927U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029814A (en) * | 2019-05-21 | 2019-07-19 | 广州交投城市道路建设有限公司 | A kind of combined steel mould bases for beams of concrete enlarging section |
| CN114086553A (en) * | 2022-01-24 | 2022-02-25 | 中铁十八局集团有限公司 | Deep basal pit module builds side wall and uses anchoring device with concrete vibration design |
| CN114086553B (en) * | 2022-01-24 | 2022-04-19 | 中铁十八局集团有限公司 | Deep basal pit module builds side wall and uses anchoring device with concrete vibration design |
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