CN219840385U - Cantilever concrete structure I-steel high formwork platform - Google Patents
Cantilever concrete structure I-steel high formwork platform Download PDFInfo
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- CN219840385U CN219840385U CN202321204924.4U CN202321204924U CN219840385U CN 219840385 U CN219840385 U CN 219840385U CN 202321204924 U CN202321204924 U CN 202321204924U CN 219840385 U CN219840385 U CN 219840385U
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- diagonal bracing
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 188
- 239000010959 steel Substances 0.000 title claims abstract description 188
- 238000009415 formwork Methods 0.000 title claims abstract description 34
- 238000004873 anchoring Methods 0.000 claims description 9
- 230000003014 reinforcing effect Effects 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 9
- 238000010276 construction Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 238000009435 building construction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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Abstract
The utility model discloses an overhanging concrete structure I-steel high formwork platform which comprises a plurality of main beams, profile steel yoke beams, diagonal bracing I-steels and diagonal bracing steel wire ropes which are arranged in parallel, wherein the profile steel yoke beams are arranged on the overhanging high formwork steel platform in a through-length mode, the small surfaces of the profile steel yoke beams are welded on the upper surfaces of the main beams which are arranged in parallel, diagonal bracing I-steels anchored with a lower main structure are arranged in the middle of the main beams, diagonal bracing steel wire ropes anchored with the upper main structure are arranged on the main beams close to the outer end of the main beams, and the design is a pull-up and pull-down bracing type combined stress system, and vertical loads on a steel pipe support are transmitted to the diagonal bracing steel wire ropes and the diagonal bracing I-steels through the profile steel main beams and then transmitted to the main structure. The vertical load is decomposed, the mechanical balance is achieved, the stress is clear and reasonable, and the safe use performance of the high formwork steel platform is effectively ensured.
Description
Technical Field
The utility model relates to the technical field of building construction engineering, in particular to an overhanging concrete structure I-steel high formwork support platform.
Background
In order to make public buildings achieve the building effects of spaciousness, wide visual field, beautiful appearance and the like, and make the buildings achieve the wide space and the beautiful visual appearance, the requirements of people on the appearance and the structural function of the outer elevation of the buildings are continuously improved, and various buildings with irregular planes and elevation are layered endlessly. In these new and alien buildings, large overhanging structures are often used. In a large-span overhanging structure, rationality of overhanging structure design stress, control of design safety reserve, construction measures and control of construction quality are particularly important for safety of a building. The high-altitude overhanging structure is a serious problem in the whole engineering due to the danger of the position where the high-altitude overhanging structure is located and irrecoverability when the overhanging structure is damaged. The construction difficulty and the technical complexity of the high-altitude overhanging structure are mainly reflected in the aspects of large structural span, large load, easiness in being influenced by external factors and the like, so that the existing overhanging structure has the problems of unbalanced stress and larger dismantling risk. Therefore, a new cantilever structure needs to be designed.
Disclosure of Invention
The utility model aims to provide the cantilever concrete structure I-steel high formwork platform, so as to solve the problems of the prior art, and the cantilever concrete structure I-steel high formwork platform is convenient to construct, saves cost, has small dismantling risk, decomposes vertical load, achieves mechanical balance, has definite and reasonable stress, and effectively ensures the safe use performance of the high formwork steel platform.
In order to achieve the above object, the present utility model provides the following solutions: the utility model provides an overhanging concrete structure I-steel high formwork support platform, which comprises
The inner ends of the main beams are anchored with the main body structure through pre-buried U-shaped bolts; and
the section steel yoke is arranged on the cantilever high formwork steel platform in a through length mode, and the lower surface of the section steel yoke is welded on the upper surface of the main beam in a full mode; and
the middle part of the main beam is provided with the diagonal bracing I-steel anchored with the lower main body structure,
and the cable-stayed steel wire rope is arranged at a position, close to the outer end part, of the main beam and anchored with the upper main body structure.
Preferably, a prefabricated steel plate is arranged in the middle of the main beam, the top surface of the prefabricated steel plate is fully welded on the main beam, two ends of the diagonal-bracing I-steel form 45-degree parallel cutting surfaces, and one end surface of the diagonal-bracing I-steel is in welded connection with the prefabricated steel plate.
Preferably, a stirrup is additionally arranged between the main beam and the diagonal bracing I-steel, one end of the stirrup is welded on the lower surface of the main beam, and the other end of the stirrup is welded on the main body of the diagonal bracing I-steel.
Preferably, the girder and the diagonal bracing I-steel are both made of I-steel.
Preferably, a lifting ring is arranged on the upper surface of the main beam, and the lifting ring is used for integrally lifting the main beam and the diagonal-bracing I-steel to a preset position through a lifting appliance.
Preferably, a detachable anchoring device is arranged at the inner end of the main beam, the detachable anchoring device comprises a U-shaped bolt anchored on a reinforcing rib at the bottom of the floor slab and a rear angle steel cover plate positioned on the upper surface of the U-shaped bolt, the main beam is fastened on the rear angle steel cover plate through the U-shaped bolt, and the joint of the upper surface of the main beam and the rear angle steel cover plate is in full-welded connection; the lower surface of the inner end of the main beam is fully welded on a prefabricated steel plate of the main body structure.
Preferably, a fixing ring is welded at a position, close to the outer end, on the main beam, one end of the inclined steel wire rope is sleeved on the fixing ring, and the other end of the inclined steel wire rope is connected to a circular steel ring embedded in the upper main body structure.
Preferably, a prefabricated steel plate is fully welded at the lower end of the diagonal bracing I-steel, and the prefabricated steel plate at the lower end of the diagonal bracing I-steel is fixedly connected with the prefabricated steel plate pre-buried in the lower main body structure through bolts.
Preferably, the upper part of the main beam is welded with a sleeve vertically upwards.
Compared with the prior art, the utility model has the following beneficial technical effects:
the utility model relates to an overhanging concrete structure I-steel high-formwork platform, which comprises a plurality of main beams, profile steel yoke beams, diagonal bracing I-steels and diagonal bracing steel wire ropes which are arranged in parallel, wherein the profile steel yoke beams are arranged on the overhanging high-formwork steel platform in a through length mode, the small surfaces of the profile steel yoke beams are welded on the upper surfaces of the main beams which are arranged in parallel, diagonal bracing I-steels anchored with a lower main body structure are arranged in the middle of the main beams, diagonal bracing steel wire ropes anchored with the upper main body structure are arranged on the main beams close to the outer end parts, and the vertical load on a steel pipe bracket is transmitted to the diagonal bracing steel wire ropes and the diagonal bracing I-steels through the profile steel main beams and then transmitted to the main body structure. The vertical load is decomposed, the mechanical balance is achieved, the stress is clear and reasonable, and the safe use performance of the high formwork steel platform is effectively ensured.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a view of the installation position of an overhanging concrete structure I-steel high formwork platform;
FIG. 2 is a diagram showing the overall structure of an overhanging concrete structure I-steel high formwork platform;
FIG. 3 is a block diagram of a prefabricated steel panel on an upper body structure;
FIG. 4 is a connection diagram of the anchor mode of the inner end of the main beam;
FIG. 5 is a schematic diagram of the upper end connection mode of the diagonal cable;
FIG. 6 is a diagram showing the connection of a preformed steel plate at the lower end of a bracing I-beam with a preformed steel plate on the lower body structure;
FIG. 7 is a block diagram of a U-bolt;
FIG. 8 is a schematic view of the connection of section steel yoke;
FIG. 9 is a diagram of a sleeving manner of the connecting ends of the diagonal wire ropes;
FIG. 10 is a connection diagram of a removable anchor;
FIG. 11 is a lower end connection diagram of a diagonal bracing I-steel;
1, a main beam; 2. diagonal bracing I-steel; 3. a cable-stayed steel wire rope; 4. section steel yoke; 5. stirrups; 6. prefabricating a steel plate; 7. u-shaped bolts; 8. prefabricating a steel plate; 9. a rear angle steel cover plate is arranged; 10. prefabricating a steel plate; 10', prefabricated steel plates; 11. a steel plate; 12. a hanging ring; 13. a fixing ring; 14. a round steel ring; 15. a sleeve; 16. a wood wedge.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model aims to provide the cantilever concrete structure I-steel high formwork platform, so as to solve the problems of the prior art, and the cantilever concrete structure I-steel high formwork platform is convenient to construct, saves cost, has small dismantling risk, decomposes vertical load, achieves mechanical balance, has definite and reasonable stress, and effectively ensures the safe use performance of the high formwork steel platform.
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
As shown in fig. 1-11, the utility model provides an overhanging concrete structure i-steel high formwork platform, which mainly comprises a main beam 1, inclined strut i-steel 2 and a diagonal cable 3. The inner end of the main beam 1 is anchored with a pre-buried U-shaped bolt of the main body structure, the middle part of the main beam 1 is provided with an inclined strut I-steel 2 which can be anchored with the lower main body structure, and the outer end of the main beam 1 is provided with a cable-stayed steel wire 3 which can be anchored with the upper main body structure. The upper part of the girder 1 is welded with a vertical upward sleeve 15 for reducing the lateral sliding of the vertical rod and ensuring the stability of the frame body, and the lower surface of the sleeve 15 is fully welded on the upper surface of the girder 1 according to the erection requirement of the frame body. The upper part of the main beam 1 is provided with a section steel yoke 4 for ensuring the overall stability of the steel platform.
The design is a pull-up and pull-down combined stress system, which can ensure the construction quality and effectively reduce the risk in the construction process under the conditions of safety, applicability, economy and rationality. The vertical load on the steel pipe bracket is transmitted to the inclined-pulling steel wire rope 3 through the main beam 1, and then transmitted to the main body structure through the inclined-pulling I-steel 2. The vertical load is decomposed, the mechanical balance is achieved, the stress is clear and reasonable, and the safe use performance of the high formwork steel platform is effectively ensured.
Under the technical scheme, the design is realized as follows:
the inner end of the girder 1 is provided with a detachable anchoring device, the detachable anchoring device comprises a U-shaped bolt 7 anchored on the reinforcing rib of the floor slab bottom and a rear angle steel cover plate 9 on the upper surface, the girder 1 is fastened on the rear angle steel cover plate 9 by bolts, and the joint of the upper surface of the girder 1 and the rear angle steel cover plate 9 is fully welded.
In one embodiment, the connection part of the girder 1 and the diagonal bracing I-steel 2 is provided with a prefabricated steel plate 4 to increase the connection area, and is provided with a large-diameter stirrup 5 to fasten the girder 1 and the diagonal bracing I-steel 2, the prefabricated steel plate 4 is arranged at the connection part of the girder 1 and the girder 1 by a 45-degree diagonal section of the girder 1 and the diagonal bracing I-steel 2, the girder 1 and the diagonal bracing I-steel 2 are respectively fully welded on the upper surface and the lower surface of the prefabricated steel plate 4, and the stirrup 5 is a safe reserve without special requirements.
The joint of the diagonal bracing I-steel 2 and the lower main body structure is provided with an embedded steel plate 4 and a rear double-side reinforced steel plate 11, the diagonal bracing I-steel 2 is fully welded on the embedded steel plate 4, and the two sides of the diagonal bracing I-steel 2 and the rear double-side reinforced steel plate 11 are fully welded on the two sides of the diagonal bracing I-steel 2 and the embedded steel plate 10' on the lower surface.
The diagonal bracing I-steel 2 is connected to the middle part of the main girder 1 at an angle of 45 degrees.
In one embodiment, the section steel yoke 4 is arranged on the upper portion of the main beam 1 and used for guaranteeing the overall stability of the steel platform, the section steel yoke 4 is also made of small-sized I-steel, the section steel yoke 4 is arranged on the cantilever high-formwork steel platform in a through length mode, and the lower surface of the section steel yoke 4 is welded on the upper surface of the main beam 1.
According to the cantilever concrete structure I-steel high formwork platform, the main beam 1 and the inclined strut I-steel 2 are not provided with the detachable anchoring device, and the mode of hoisting after integral connection is adopted, so that the structural strength is enhanced, the working procedures in the high-altitude operation during the dismantling are reduced, and the dismantling risk is reduced. The main beam 1 is connected with the whole lower supporting structure and the upper pulling steel wire rope through a detachable anchoring device. The support system is reasonable in design, safe and reliable, convenient to construct, low in dismantling risk, and remarkable in economic benefit and social benefit, and the cost is saved.
The support system is safe and reliable through stress checking, is convenient to construct, saves cost, has small dismantling risk, effectively reduces the dangerousness in the construction process of the high-altitude large-span overhanging concrete structure, adopts recyclable materials, and is beneficial to environmental protection, and economic and social benefits are remarkable.
Example 1
In the embodiment, a girder 1 made of I-shaped steel beams is used, prefabricated steel plates 6 are arranged in the middle and close to the outer end of the girder 1, one surface of each prefabricated steel plate is fully welded on the lower surface of the girder 1, two ends of each diagonal bracing I-shaped steel 2 are cut in a 45-degree parallel mode, one end of each diagonal bracing I-shaped steel 2 is welded on the other surface of each prefabricated steel plate 4 in a 45-degree mode, the girder 1 and each diagonal bracing I-shaped steel 2 are connected into a whole, and a stirrup 5 is additionally arranged outside the girder 1 and each diagonal bracing I-shaped steel 2 in a loose state to serve as a safety reserve. I-steel is adopted for the main beam 1 and the diagonal bracing I-steel 2.
The upper surface of the main beam 1 is provided with a hanging ring 12, the main beam 1 and the diagonal bracing I-steel 2 are integrally hoisted to a preset position, the inner end of the main beam 1 is anchored on a main body structure through a U-shaped bolt 7 (see fig. 7) and a rear angle steel cover plate 9 (see fig. 4), the lower surface of the main beam 1 is fully welded on the upper surface of an embedded steel plate 8 (see fig. 3 and 10), and a wooden wedge 16 is used for fastening on the middle main body structure so as to prevent lateral sliding (see fig. 4). The other end of the main beam 1 is welded with a fixed ring 13, the fixed ring 13 is sleeved with a diagonal wire rope 3 (see figure 9), and the other end of the diagonal wire rope 3 is connected with a circular steel ring 14 (see figure 5) pre-buried in the upper main body structure.
The lower end of the diagonal bracing I-steel 2 is fully welded with a prefabricated steel plate 10 'and the upper surface of the embedded steel plate 10 of the lower floor slab are fixedly connected through bolts (see fig. 6 and 11), two sides of the connecting position of the prefabricated steel plate 10' at the lower end of the diagonal bracing I-steel 2 are respectively welded with a steel plate 11, a steel wire rope can be slowly loosened after the welding and fixing, and if the steel beam is stable and not bent downwards, the next steel beam can be hoisted. After all the main beams 1 are installed, the upper parts of the main beams 1 are fully welded with vertical upward sleeves 15 for reducing the lateral sliding of the vertical rods and ensuring the stability of the frame body. The upper part of the main beam 1 is also provided with a section steel yoke 4 (see fig. 8) for ensuring the overall stability of the steel platform. The section steel yoke 4 is also made of small-sized I-steel, the section steel yoke 4 is arranged on the cantilever high formwork steel platform in a through length mode, and the lower surface of the section steel yoke 4 is welded on the upper surface of the main beam 1.
It should be noted that it will be apparent to those skilled in the art that the present utility model is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present utility model; also, it is within the scope of the present utility model to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.
Claims (9)
1. The utility model provides a concrete structure I-steel high formwork platform encorbelments which characterized in that: comprising
The inner ends of the main beams are connected with the main body structure through a detachable anchoring device; and
the section steel yoke is arranged on the cantilever high formwork steel platform in a through length mode, and the lower surface of the section steel yoke is welded on the upper surface of the main beam in a full mode; and
the middle part of the main beam is provided with the diagonal bracing I-steel anchored with the lower main body structure,
and the cable-stayed steel wire rope is arranged at a position, close to the outer end part, of the main beam and anchored with the upper main body structure.
2. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the middle part of girder is provided with prefabricated steel sheet, prefabricated steel sheet's top surface full weld in on the girder, bracing I-steel both ends become 45 parallel cutting surface, an terminal surface of bracing I-steel with prefabricated steel sheet welded connection.
3. The overhanging concrete structure i-steel high formwork platform as claimed in claim 2, characterized in that: a stirrup is additionally arranged between the main beam and the diagonal bracing I-steel, one end of the stirrup is welded on the lower surface of the main beam, and the other end of the stirrup is welded on the main body of the diagonal bracing I-steel.
4. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the girder and the diagonal bracing I-steel are both made of I-steel.
5. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the upper surface of girder is provided with a rings, rings are used for with girder and bracing I-steel integral hoisting to predetermined position through hoist.
6. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the inner end of the main beam is provided with a detachable anchoring device, the detachable anchoring device comprises a U-shaped bolt anchored on a reinforcing rib at the bottom of the floor slab and a rear angle steel cover plate positioned on the upper surface of the U-shaped bolt, the main beam is fastened on the rear angle steel cover plate through the U-shaped bolt, and the joint of the upper surface of the main beam and the rear angle steel cover plate is in full-welded connection; the lower surface of the inner end of the main beam is fully welded on a prefabricated steel plate of the main body structure.
7. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the fixed ring is welded at a position on the main beam close to the outer end, one end of the inclined steel wire rope is sleeved on the fixed ring, and the other end of the inclined steel wire rope is connected to the circular steel ring embedded in the upper main body structure.
8. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: the lower end of the diagonal bracing I-steel is fully welded with a prefabricated steel plate, and the prefabricated steel plate at the lower end of the diagonal bracing I-steel is fixedly connected with the prefabricated steel plate pre-buried in the lower main body structure through bolts.
9. The overhanging concrete structure i-steel high formwork platform as claimed in claim 1, characterized in that: and a sleeve pipe which is vertically upwards is welded at the upper part of the main beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321204924.4U CN219840385U (en) | 2023-05-18 | 2023-05-18 | Cantilever concrete structure I-steel high formwork platform |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321204924.4U CN219840385U (en) | 2023-05-18 | 2023-05-18 | Cantilever concrete structure I-steel high formwork platform |
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| CN219840385U true CN219840385U (en) | 2023-10-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202321204924.4U Active CN219840385U (en) | 2023-05-18 | 2023-05-18 | Cantilever concrete structure I-steel high formwork platform |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120367232A (en) * | 2025-06-23 | 2025-07-25 | 中铁十局集团有限公司 | Large overhanging concrete member and foundation pit instability prevention supporting system |
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2023
- 2023-05-18 CN CN202321204924.4U patent/CN219840385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120367232A (en) * | 2025-06-23 | 2025-07-25 | 中铁十局集团有限公司 | Large overhanging concrete member and foundation pit instability prevention supporting system |
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