CN216406253U - Structure of structure of encorbelmenting is established to adding on existing reinforced concrete roof beam - Google Patents
Structure of structure of encorbelmenting is established to adding on existing reinforced concrete roof beam Download PDFInfo
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- CN216406253U CN216406253U CN202122827313.2U CN202122827313U CN216406253U CN 216406253 U CN216406253 U CN 216406253U CN 202122827313 U CN202122827313 U CN 202122827313U CN 216406253 U CN216406253 U CN 216406253U
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Abstract
The utility model relates to a structure for adding an overhanging structure on an existing reinforced concrete beam, belonging to the technical field of civil construction. The cantilever structure is simple and feasible in structure, economical and practical, and can meet the anti-overturning requirement of the cantilever structure.
Description
Technical Field
The utility model relates to a structure for additionally arranging an overhanging structure on an existing reinforced concrete beam, and belongs to the technical field of civil construction.
Background
With the development of our society, the reinforcement technology of concrete buildings is developed more and more, but still many problems need to be solved. In recent years, the demand for building reinforcement and reconstruction is increasing, and particularly, for reinforcement and reconstruction of a reinforced concrete frame structure which is most widely applied at present, for example, some projects need to be additionally provided with some overhanging structures in order to meet the demand for functionality or aesthetics, and for the reinforced concrete frame structure, the difficulty is how to reasonably utilize structural characteristics to realize connection between the overhanging structure and the original structure and resist overturning together on the premise of not influencing the original structure too much.
In addition, in the structural design of buildings, some projects need to be provided with overhanging structures to meet the requirements of functionality and attractiveness, but the construction of the projects often faces a plurality of problems, particularly whether the design of the joint of the projects and the main structure is reasonable or not, so that the overall safety of the structure is directly related, and the construction period, the construction cost and the like are greatly influenced.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a structure for adding an overhanging structure on an existing reinforced concrete beam, and aims to solve the problems of difficulty in arranging the overhanging structure and troublesome construction in a modern building structure.
In order to achieve the purpose, the utility model adopts the following technical scheme:
a structure with an overhanging structure added on an existing reinforced concrete beam comprises a floor slab, a steel support, a steel plate, an anchor bolt, a shear key, a reinforced concrete bracket, the overhanging structure and the reinforced concrete beam;
the upper part and the lower part of the steel support are respectively connected with an overhanging structure and a steel plate, the steel plate is positioned below the steel support, one end of the anchor bolt and the shear key are fixed on the steel plate, the other end of the anchor bolt and the shear key are anchored into the reinforced concrete bracket or the reinforced concrete beam, and the lower surface of the steel plate is welded with the floor slab steel bar;
the reinforced concrete corbels are positioned on two sides of the reinforced concrete beam, the steel plates are arranged at the tops of the reinforced concrete corbels, and prestressed tendons, transverse tendons and hoop reinforcements are arranged in the reinforced concrete corbels; the prestressed tendons and the transverse tendons penetrate through the reinforced concrete beam in a punching mode, and the hoop reinforcements and the transverse tendons are bound and fixed.
Further, still be provided with interim support between floor and the structure of encorbelmenting, interim support is used for supporting the structure of encorbelmenting that adds to establish during the construction.
Further, the temporary support is a lattice column or a section steel.
Further, the steel support is an anti-seismic spherical hinged support.
Furthermore, the upper end anchor of crab-bolt is on the steel sheet to be the rectangle on the steel sheet surface and arrange, in the lower extreme stock embedding reinforced concrete bracket or the reinforced concrete roof beam of crab-bolt, crab-bolt and steel sheet adopt perforation plug welding connected mode.
Furthermore, the shear keys are angle steels, are welded below the steel plates, are buried in the reinforced concrete corbels and are symmetrically arranged in the reinforced concrete corbels at two ends.
Furthermore, the two shear keys are oppositely arranged into a group of T-shaped shear key structures, and four groups of shear key structures are arranged in the reinforced concrete corbels on two sides of the reinforced concrete beam.
Furthermore, the prestressed tendons are arranged between the two layers of transverse tendons and penetrate through the prestressed pipeline.
The utility model achieves the following technical effects:
the cantilever structure is simple and practical in structural design, convenient to construct, high in practical popularization value, simple and feasible in structure, economical and practical, and capable of meeting the anti-overturning requirement of the cantilever structure.
Drawings
FIG. 1 is a perspective (overall) cross-sectional view of the present invention;
FIG. 2 is a schematic plan view of the arrangement of the steel plates (with reinforced concrete corbels arranged at the lower part) of the present invention;
FIG. 3 is a schematic view of the section A-A of the reinforcement bar of FIG. 2 according to the present invention;
FIG. 4 is a schematic view of the section B-B of the reinforcement bar of FIG. 2 according to the present invention;
wherein, 1, a floor slab; 2. a steel support; 3. a steel plate; 4. an anchor bolt; 5. a shear key; 6. a reinforced concrete corbel; 7. temporary support; 8. a cantilever structure; 9. a reinforced concrete beam; 10. floor slab reinforcing steel bars; 11. prestressed tendons; 12. a transverse rib; 13. and (5) hoop reinforcement.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings 1 to 4 and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.
In the description of the present invention, it is to be understood that the terms "height," "upper," "lower," "top," "bottom," "inner," "outer," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience and simplicity of 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 thus are not to be construed as limiting the present invention.
Referring to fig. 1 to 4, a structure in which an overhanging structure is added to an existing reinforced concrete beam includes a floor slab 1, a steel support 2, a steel plate 3, an anchor bolt 4, a shear key 5, a reinforced concrete corbel 6, an overhanging structure 8, and a reinforced concrete beam 9. Still be provided with interim support 7 between floor 1 and the structure 8 of encorbelmenting, interim support 7 is used for supporting during the construction to add the structure 8 of encorbelmenting of establishing, and in this embodiment, interim support 7 is the lattice column.
The steel support 2 is an anti-seismic spherical hinged support, the upper end and the lower end of the anti-seismic spherical hinged support are respectively connected with an overhanging structure 8 and a steel plate 3, the steel plate 3 is positioned below the steel support 2, one ends of anchor bolts 4 and shear keys 5 are fixed on the steel plate 3, the other end of the anchor bolts is anchored into a reinforced concrete bracket 6 or a reinforced concrete beam 9, and the lower surface of the steel plate 3 is welded with a floor slab steel bar 10, so that the steel plate 3 is more firmly connected with a lower structure. The upper end anchor of crab-bolt 4 is on steel sheet 3 to be the rectangle on steel sheet 3 surfaces and arrange, in the lower extreme stock embedding reinforced concrete bracket 6 or reinforced concrete roof beam 9 of crab-bolt 4, crab-bolt 4 and steel sheet 3 adopt perforation plug welding connected mode. The shear keys 5 are angle steels, are welded below the steel plates 3, are embedded in the reinforced concrete corbels 6 and are symmetrically arranged in the reinforced concrete corbels 6 at two ends. As shown in fig. 2, two shear keys 5 are oppositely arranged as a set of T-shaped shear key structures, and there are four sets of shear key structures, which are symmetrically arranged in the reinforced concrete corbels 6 at both sides of the reinforced concrete beam 9. The anchor 4 and shear key 5 are arranged to resist bending moments and horizontal forces.
As shown in fig. 3-4, the reinforced concrete corbels 6 are positioned on two sides of the reinforced concrete beam 9, the edges of the reinforced concrete corbels are flush with the steel plates 3, and the prestressed tendons 11, the transverse tendons 12 and the hoop reinforcements 13 are arranged inside the reinforced concrete corbels 6. The prestressed tendons 11 and the transverse tendons 12 are punched to penetrate through the reinforced concrete beam 9, and the annular stirrups 13 are bound and fixed with the transverse tendons 12. The prestressed tendons 11 are arranged between two layers of transverse tendons 12, and the prestressed tendons 11 penetrate through the prestressed pipeline. The reinforced concrete corbel 6, the reinforced concrete beam 9 and the steel plate 3 are fixed to form a whole, and the integrity is good.
The construction method of the structure comprises the following steps:
step 1: and chiseling the floor concrete added with the position of the overhanging structure 8 to expose the floor reinforcing steel bars 10.
Step 2: the reinforced concrete beam 9 is perforated transversely and the prestressed pipe and the transverse bar 12 are inserted.
And step 3: and binding and fixing the hoop stirrups 13 and the transverse reinforcements 12 for forming the reinforced concrete corbel 6.
And 4, step 4: and welding the anchor bolts 4 and the shear keys 5 at corresponding positions of the steel plates 3, placing the steel plates 3 at preset positions and welding and fixing the steel plates with the floor slab reinforcing steel bars 10.
And 5: and (5) erecting the formwork and pouring concrete to form the reinforced concrete corbel 6.
Step 6: and after the concrete reaches a certain strength, tensioning the prestressed tendons 11.
And 7: a steel support 2 is arranged on the steel plate 3, and a temporary support 7 is arranged on the floor slab 1.
And 8: overhanging structures 8 are arranged on the steel support 2 and the temporary support 7.
The above embodiments are merely provided for more clearly illustrating the technical solutions of the present invention, and are not intended to limit the present invention, and variations of the technical solutions of the present invention by a person of ordinary skill in the art based on the common general knowledge in the art are also within the scope of the present invention.
Claims (8)
1. The utility model provides an add the structure of establishing the structure of encorbelmenting on existing reinforced concrete roof beam which characterized in that: the steel plate reinforced concrete floor comprises a floor slab (1), a steel support (2), a steel plate (3), anchor bolts (4), shear keys (5), a reinforced concrete corbel (6), a cantilever structure (8) and a reinforced concrete beam (9);
the upper part and the lower part of the steel support (2) are respectively connected with an overhanging structure (8) and a steel plate (3), the steel plate (3) is positioned below the steel support (2), one end of an anchor bolt (4) and a shear key (5) is fixed on the steel plate (3), the other end of the anchor bolt is anchored into the reinforced concrete bracket (6) or the reinforced concrete beam (9), and the lower surface of the steel plate (3) is welded with a floor slab steel bar (10);
the reinforced concrete corbels (6) are positioned on two sides of the reinforced concrete beam (9), and the prestressed tendons (11), the transverse tendons (12) and the hoop reinforcements (13) are arranged in the reinforced concrete corbels (6); the prestressed reinforcement (11) and the transverse reinforcement (12) are punched to penetrate through the reinforced concrete beam (9), and the hoop reinforcement (13) is bound and fixed with the transverse reinforcement (12).
2. The structure of claim 1, wherein the cantilever structure is additionally arranged on the existing reinforced concrete beam, and the structure comprises: still be provided with interim support (7) between floor (1) and overhanging structure (8), interim support (7) are used for supporting during the construction and add overhanging structure (8) of establishing.
3. The structure of claim 2, wherein the cantilever structure is additionally provided on the existing reinforced concrete beam, and the structure comprises: the temporary support (7) is a lattice column or section steel.
4. The structure of claim 1, wherein the cantilever structure is additionally arranged on the existing reinforced concrete beam, and the structure comprises: the steel support (2) is an anti-seismic spherical hinged support.
5. The structure of claim 1, wherein the cantilever structure is additionally arranged on the existing reinforced concrete beam, and the structure comprises: the upper end anchor of crab-bolt (4) is on steel sheet (3) to be the rectangle on steel sheet (3) surface and arrange, in the lower extreme stock embedding reinforced concrete bracket (6) or reinforced concrete roof beam (9) of crab-bolt (4), crab-bolt (4) and steel sheet (3) adopt perforation plug welding connected mode.
6. The structure of claim 5, wherein the cantilever structure is additionally provided on the existing reinforced concrete beam, and the structure comprises: the shear keys (5) are angle steels, are welded below the steel plates (3), are embedded in the reinforced concrete corbels (6), and are symmetrically arranged in the reinforced concrete corbels (6) at two ends.
7. The structure of claim 6, wherein the cantilever structure is additionally provided on the existing reinforced concrete beam, and the structure comprises: the two shear keys (5) are oppositely arranged into a group of T-shaped shear key structures, and four groups of shear key structures are arranged in total and are symmetrically arranged in the reinforced concrete corbels (6) on two sides of the reinforced concrete beam (9).
8. The structure of claim 1, wherein the cantilever structure is additionally arranged on the existing reinforced concrete beam, and the structure comprises: the prestressed tendons (11) are arranged between the two layers of transverse tendons (12), and the prestressed tendons (11) penetrate through the prestressed pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827313.2U CN216406253U (en) | 2021-11-18 | 2021-11-18 | Structure of structure of encorbelmenting is established to adding on existing reinforced concrete roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122827313.2U CN216406253U (en) | 2021-11-18 | 2021-11-18 | Structure of structure of encorbelmenting is established to adding on existing reinforced concrete roof beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216406253U true CN216406253U (en) | 2022-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122827313.2U Active CN216406253U (en) | 2021-11-18 | 2021-11-18 | Structure of structure of encorbelmenting is established to adding on existing reinforced concrete roof beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216406253U (en) |
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2021
- 2021-11-18 CN CN202122827313.2U patent/CN216406253U/en active Active
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