CN212534485U - High-altitude large cantilever beam structure - Google Patents
High-altitude large cantilever beam structure Download PDFInfo
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- CN212534485U CN212534485U CN202021111058.0U CN202021111058U CN212534485U CN 212534485 U CN212534485 U CN 212534485U CN 202021111058 U CN202021111058 U CN 202021111058U CN 212534485 U CN212534485 U CN 212534485U
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Abstract
A high altitude large cantilever beam structure comprising: one end of the local section steel concrete section is connected with the main body structure; the steel structure overhanging section is connected with the other end of the local section steel concrete section. A local steel reinforced concrete section comprising: one end of the reinforced concrete part is connected with the main body structure; and the section steel is coated by the reinforced concrete part, one end of the section steel is connected with the main body structure, and the other end of the section steel extends out of the other end of the reinforced concrete part. The steel structure overhanging section is connected with the other end of the section steel. A reinforced concrete section comprising: one end of the upper longitudinal rib and the lower longitudinal rib is embedded in the main body structure, and the other end of the upper longitudinal rib and the lower longitudinal rib extend out of the main body structure for a preset distance; the stirrups are sleeved on the sections of the upper and lower longitudinal bars extending out of the main body structure along the length direction of the upper and lower longitudinal bars and are connected with the upper and lower longitudinal bars; and concrete is poured on the reinforced concrete part and coats the upper and lower longitudinal bars and the stirrups. When the structural safety degree is sufficiently ensured, the difficulty in designing and constructing a general high-altitude large-cantilever structure can be overcome, and the practicability is high.
Description
Technical Field
The utility model relates to a building engineering field especially relates to a big cantilever beam structure in high altitude.
Background
The overlong overhanging eaves mouth is applied to architectural design, can build solemn and primitive and simple architectural style, and is deeply loved by architectural designers. At present, a plurality of concrete high-rise buildings have a larger overhanging structure on the roof so as to improve the aesthetic property of the buildings.
Generally, in order to achieve the effects of beauty and practicability, the cantilever length can reach 8 meters or more and 9 meters or more, and the cantilever structure needs to be large, and the two schemes of cantilever concrete beams or cantilever pure steel beams are adopted at present.
Firstly, the cantilever concrete beam is adopted, and in order to realize such large cantilever, a beam section is required to be large enough, so that the structural weight is inevitably increased remarkably; meanwhile, high-altitude formwork supporting is very difficult, the existing construction unit mainly adopts a mode of triangular support to support the formwork, the mode is similar to the mode of fig. 1, but the mode is not suitable for a large cantilever structure, the danger of the formwork supporting is high, in addition, a mode of formwork supporting of a full hall scaffold is also adopted, but the scaffold needs to be supported from a bottom layer to a roof, the time span is large, the efficiency is low, and the cost is extremely high.
The second type adopts pure girder to encorbelment, and pure girder has the cross-section little, the dead weight is light, efficient characteristics, but this kind of method need stretch into the girder steel at least major structure one stride and reliably connect, like figure 2 to guarantee structure safety, this can show the degree of difficulty that increases construction and design, increased the steel consumption of one stride simultaneously, the structure is extravagant.
The two methods have certain limitations, and the design and construction difficulty is high, and the influence on the main structure is also large.
SUMMERY OF THE UTILITY MODEL
Not enough to the above-mentioned prior art, the utility model provides a high altitude cantilever beam structure greatly, when structural safety degree has enough assurance, can overcome general high altitude structural design construction difficulty of encorbelmenting greatly, the practicality is strong.
In order to realize the purpose of the utility model, the following scheme is proposed:
the utility model provides a big cantilever beam structure in high altitude which characterized in that includes:
one end of the local section steel concrete section is connected with the main body structure; and
the steel structure overhanging section is connected with the other end of the local section steel concrete section.
Local shaped steel concrete section, one end is connected with the post/wall of major structure is perpendicular, and local shaped steel concrete section and steel construction section level setting of encorbelmenting.
Wherein, local shaped steel concrete section includes:
one end of the reinforced concrete part is connected with the main body structure; and
and the section steel is coated by the reinforced concrete part, one end of the section steel is connected with the main body structure, and the other end of the section steel extends out of the other end of the reinforced concrete part. The steel structure overhanging section is connected with the other end of the section steel.
Furthermore, one end of the section steel is connected with an embedded part, and the embedded part is arranged in the main body structure in advance.
Further, the profiled bar is provided with studs, which are covered by the reinforced concrete portion.
Further, a reinforced concrete section comprising:
one end of the upper longitudinal rib and the lower longitudinal rib is embedded in the main body structure, and the other end of the upper longitudinal rib and the lower longitudinal rib extend out of the main body structure for a preset distance;
the stirrups are sleeved on the sections of the upper and lower longitudinal bars extending out of the main body structure along the length direction of the upper and lower longitudinal bars and are connected with the upper and lower longitudinal bars; and
and concrete is poured on the reinforced concrete part and coats the upper and lower longitudinal bars and the stirrups.
The upper and lower longitudinal ribs are positioned on the outer side of the section steel.
The embodiment of the utility model provides a beneficial effect lies in:
1. the local section steel concrete section is arranged to solve the problem that the connection of the large cantilever pure steel beam and the main structure needs to extend for one span, and the connection reliability of the large cantilever and the main structure is increased through the local section steel concrete section;
2. compared with a pure concrete beam cantilever, the beam section of the scheme is smaller, the dead weight is light, and the influence on the main structure is smaller;
3. simple structure, clear stress, easy construction and low cost.
Drawings
The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present disclosure.
Fig. 1 illustrates a prior art cantilevered concrete triangular support embodiment.
Figure 2 illustrates an embodiment of a prior art cantilever steel beam extension body for one span.
Fig. 3 shows a schematic structural diagram of an embodiment of the present invention.
Fig. 4 shows a schematic partial structure diagram of an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
A high-altitude large cantilever beam structure mainly comprises two parts: a pure steel structure cantilever section and a local section steel concrete section. The local section steel concrete section is directly connected with the main structure, the section steel beam inside the section steel concrete section is welded on an embedded part embedded in the main structure in advance, and the longitudinal steel bar of the section steel concrete section is anchored in the main structure; and after the concrete strength of the local section steel concrete beam section reaches 95 percent, the section steel concrete beam section can independently bear the force, and then the pure steel structure overhanging section is welded at the end of the section steel beam section.
Specifically, the embodiments shown in FIGS. 3 to 4 will be described in detail.
This example provides a big cantilever beam structure in high altitude, includes: local shaped steel concrete section 2 and steel construction section of encorbelmenting 1.
Concretely, high altitude large cantilever beam structure, including local shaped steel concrete section 2, steel construction section 1 of encorbelmenting, local shaped steel concrete section 2 is inside to contain shaped steel 3 again, indulges muscle 4 and waist muscle, stirrup 5, peg 6 from top to bottom to and anchor built-in fitting 7 on major structure 9.
Wherein, one end of the local steel reinforced concrete section 2 is connected with the main structure 9; specifically, local shaped steel concrete section 2, one end is connected with the post/wall of major structure 9 is perpendicular, and local shaped steel concrete section 2 and the 1 level setting of section of encorbelmenting of steel construction.
The steel structure overhanging section 1 is connected with the other end of the local section steel concrete section 2. Thereby forming a high-altitude large cantilever beam structure connected with the main body structure 9.
In a specific embodiment, the structure of the partial steel reinforced concrete section 2 may be implemented in the following manner: the partial section 2 comprises: a reinforced concrete portion 8 and section steel 3.
Specifically, one end of the reinforced concrete part is connected with the main structure 9; the section steel 3 is covered by the reinforced concrete part, one end of the section steel is connected with the main structure 9, and the other end of the section steel extends out of the other end of the reinforced concrete part. The steel structure overhanging section 1 is connected with the other end of the section steel 3 in a welding way.
In the specific embodiment, one end of the section steel 3 is welded with an embedded part 7, and the embedded part 7 is preset on the main body structure 9.
In a preferred embodiment, the section steel 3 is provided with the stud 6, and the stud 6 is partially covered by the reinforced concrete, so that the engagement stability of the concrete and the section steel 3 can be improved, and the structural strength of the local section steel concrete section 2 can be improved.
In a particular embodiment, the reinforced concrete portion comprises: upper and lower longitudinal bars 4, stirrups 5 and concrete 8. One end of each of the upper and lower longitudinal ribs 4 is embedded in the main body structure 9, the other end of each of the upper and lower longitudinal ribs 4 extends out of the main body structure 9 by a preset distance, and the upper and lower longitudinal ribs 4 are positioned on the outer side of the section steel 3; the stirrups 5 are sleeved on the sections of the upper and lower longitudinal bars 4 extending out of the main body structure 9 along the length direction of the upper and lower longitudinal bars 4, and the stirrups 5 are connected with the upper and lower longitudinal bars 4; and concrete 8 is poured on the reinforced concrete part and coats the upper and lower longitudinal bars 4 and the stirrups 5.
During the main structure construction:
1) embedding the embedded part 7 into concrete, and reserving upper and lower longitudinal bars 4 of the section steel beam section from the main body structure 9;
2) when the embedded part can be stressed, the section steel 3 welded with the stud 6 in advance is welded on the embedded part 7, the reinforcing steel bars and the stirrups 5 are bound, and a formwork is supported, and at the moment, the template of the cantilever beam part can use the section steel of the cantilever as a supporting point or an overhanging tripod as a fulcrum;
3) and then pouring concrete 8, and removing the template when the concrete 8 is solidified to be capable of bearing force independently.
4) And finally, welding the cantilever section 1 of the pure steel structure on the section steel 3 of the local section steel concrete section 2 to form a large cantilever beam structure integrally.
The utility model discloses set up local shaped steel concrete beam section, ingenious solution the design of high altitude cantilever beam, the difficulty of construction greatly to have convenient operation, simple structure, low in manufacturing cost's advantage.
The foregoing is merely a preferred embodiment of the invention and is not intended to be exhaustive or to limit the invention. It should be understood by those skilled in the art that various changes and equivalent substitutions made herein may be made without departing from the scope of the invention as defined by the appended claims.
Claims (6)
1. The utility model provides a big cantilever beam structure in high altitude which characterized in that includes:
one end of the local steel reinforced concrete section (2) is connected with the main structure (9); and
the steel structure cantilever section (1) is connected with the other end of the local steel reinforced concrete section (2);
wherein, local shaped steel concrete section (2) includes:
a reinforced concrete portion, one end of which is connected with the main structure (9); and
the section steel (3) is coated by the reinforced concrete part, one end of the section steel is connected with the main body structure (9), and the other end of the section steel extends out of the other end of the reinforced concrete part;
the profile steel (3) is provided with studs (6), the studs (6) being coated by reinforced concrete parts.
2. The high-altitude large cantilever beam structure according to claim 1, wherein one end of the local steel reinforced concrete section (2) is vertically connected with a column/wall of the main structure (9), and the local steel reinforced concrete section (2) and the steel structure cantilever section (1) are horizontally arranged.
3. The high-altitude large cantilever beam structure according to claim 1, wherein the steel structure cantilever section (1) is connected with the other end of the section steel (3).
4. The high-altitude large cantilever beam structure according to claim 1, wherein one end of the section steel (3) is connected with an embedded part (7), and the embedded part (7) is preset in the main body structure (9).
5. The high altitude big cantilever beam structure of claim 1, wherein the reinforced concrete part comprises:
one end of each of the upper and lower longitudinal ribs (4) is embedded in the main body structure (9), and the other end of each of the upper and lower longitudinal ribs extends out of the main body structure (9) by a preset distance;
the stirrups (5) are sleeved on the sections of the upper and lower longitudinal bars (4) extending out of the main body structure (9) along the length direction of the upper and lower longitudinal bars (4), and the stirrups (5) are connected with the upper and lower longitudinal bars (4); and
and concrete (8) is poured on the reinforced concrete part and coats the upper and lower longitudinal bars (4) and the stirrups (5).
6. The high-altitude large cantilever beam structure according to claim 5, wherein the upper and lower longitudinal ribs (4) are positioned outside the section steel (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021111058.0U CN212534485U (en) | 2020-06-16 | 2020-06-16 | High-altitude large cantilever beam structure |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934589A (en) * | 2022-05-26 | 2022-08-23 | 中建八局西南建设工程有限公司 | Official hat-shaped building structure and construction method thereof |
| CN115748955A (en) * | 2022-11-22 | 2023-03-07 | 中建八局第三建设有限公司 | High-altitude cantilever plate stacking method construction method |
-
2020
- 2020-06-16 CN CN202021111058.0U patent/CN212534485U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114934589A (en) * | 2022-05-26 | 2022-08-23 | 中建八局西南建设工程有限公司 | Official hat-shaped building structure and construction method thereof |
| CN114934589B (en) * | 2022-05-26 | 2024-04-05 | 中建八局华中建设有限公司 | Official cap-shaped building structure and construction method thereof |
| CN115748955A (en) * | 2022-11-22 | 2023-03-07 | 中建八局第三建设有限公司 | High-altitude cantilever plate stacking method construction method |
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