Structure for additionally arranging reinforced concrete cantilever plate on independent I-shaped steel beam
By setting up reinforced concrete beams above independent I-beams and connecting cantilever plates, the torque resistance performance of reinforced concrete beams is used to transmit torque, the problem of insufficient torsion resistance of independent I-beams is solved, and the effect of meeting the capacity expansion strength needs is achieved.
Patent Information
- Application Number
- CN202421663426.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-07-12
AI Technical Summary
Independent I-shaped steel beams lack torsion resistance and cannot directly add cantilevered floors to one side. They need to improve torsion resistance to meet capacity expansion requirements.
By setting up reinforced concrete beams above the I-shaped steel beams and connecting the reinforced concrete cantilever plates to the reinforced concrete beams, the torsional resistance of the reinforced concrete beams is used to transmit the torque to the steel columns of the existing building, thereby improving the torsional resistance of the I-shaped steel beams.
It effectively improves the torsion resistance of independent I-beams, so that it can directly add reinforced concrete cantilevered slabs to one side to meet the strength requirements during capacity expansion.
Smart Images
Figure CN222797142U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building reconstruction, in particular to a structure of an independent I-beam steel beam with a newly added reinforced concrete cantilever plate. Background Art
[0002] The house needs to add a reinforced concrete cantilevered floor on the basis of the original structure to serve as a new canopy, or to expand the usable area of the house.
[0003] When expanding a steel structure house, there is a need to use an independent I-beam to support the cantilevered floor. However, since the independent I-beam has basically no torsion resistance, it is impossible to directly add a cantilevered floor on one side. It is necessary to improve the torsion resistance of the independent I-beam to meet the requirements. Therefore, how to improve the torsion resistance of the independent I-beam is a technical problem that needs to be solved at present. Utility Model Content
[0004] Based on the above description, the utility model provides a structure of an independent I-beam with a newly added reinforced concrete cantilever slab, which improves the torsional performance of the independent I-beam and enables the independent I-beam to meet the strength requirements of adding a cantilever floor slab directly on one side thereof.
[0005] The technical solution of the utility model to solve the above technical problems is as follows:
[0006] The present application provides a structure of an independent I-beam with a newly added reinforced concrete cantilever slab, and the technical solution adopted is as follows:
[0007] A structure of an independent I-beam with a reinforced concrete cantilever slab, comprising:
[0008] An I-beam, one end of which is connected to an existing building steel column and the other end of which extends away from the steel column;
[0009] A reinforced concrete beam is disposed above the I-beam, the reinforced concrete beam is parallel to the I-beam, the reinforced concrete beam is connected to the I-beam, and one end of the reinforced concrete beam is connected to the steel column;
[0010] A reinforced concrete cantilever slab is horizontally arranged, located on one side of the reinforced concrete beam in the horizontal direction and connected to the reinforced concrete beam, and comprises a plurality of slab surface negative reinforcements, which are horizontally arranged and perpendicular to the length direction of the reinforced concrete beam, and the plurality of slab surface negative reinforcements are distributed at intervals along the length direction of the reinforced concrete beam, and one end of the slab surface negative reinforcements is anchored in the reinforced concrete beam.
[0011] Preferably, the reinforced concrete beam includes a plurality of longitudinal beam reinforcements and a plurality of waist beam reinforcements, the longitudinal beam reinforcements and the waist beam reinforcements are both arranged along the length direction of the reinforced concrete beam, the longitudinal beam reinforcements are distributed on both sides of the reinforced concrete beam in the vertical direction, the waist beam reinforcements are distributed on both sides of the reinforced concrete beam in the horizontal direction, and the waist beam reinforcements are located between the longitudinal beam reinforcements at the top and the bottom of the reinforced concrete beam, and the longitudinal beam reinforcements and the waist beam reinforcements are connected to the steel column at one end close to the steel column.
[0012] Preferably, the ends of the beam longitudinal reinforcement and the beam waist reinforcement close to the steel column are connected to the steel column through connecting sleeves, the connecting sleeves between the beam longitudinal reinforcement and the steel column are coaxial with the beam longitudinal reinforcement and are welded and fixed to the steel column and the beam longitudinal reinforcement, and the connecting sleeves between the beam waist reinforcement and the steel column are coaxial with the beam waist reinforcement and are welded and fixed to the steel column and the beam waist reinforcement.
[0013] Preferably, a plurality of bolts are provided on the top of the I-beam, and the bolts are welded and fixed to the top flange plate of the I-beam and anchored into the reinforced concrete beam, and the plurality of bolts are arranged at intervals along the length direction of the I-beam.
[0014] Preferably, the reinforced concrete cantilever slab and the reinforced concrete beam are cast integrally.
[0015] Preferably, the reinforced concrete cantilever plate is located at the top, middle or bottom of the reinforced concrete beam.
[0016] Preferably, the reinforced concrete cantilever plates are provided on both sides of the reinforced concrete beam in the horizontal direction.
[0017] Preferably, the negative reinforcement on the slab surface extends inside the reinforced concrete beam to a side of the reinforced concrete beam away from the reinforced concrete cantilever slab and is bent.
[0018] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:
[0019] 1. The present application arranges a reinforced concrete beam above the I-beam, the reinforced concrete beam is connected to the I-beam, the reinforced concrete cantilever plate is connected to the reinforced concrete beam, and the negative reinforcement of the plate surface of the reinforced concrete cantilever plate is anchored into the reinforced concrete beam, thereby improving the connection strength between the reinforced concrete cantilever plate and the reinforced concrete beam; utilizing the good torsional resistance of the reinforced concrete beam, the reinforced concrete beam transmits the torque to the steel column of the existing building, thereby improving the torsional resistance of the I-beam, and at the same time utilizing the shear and bending resistance of the I-beam itself, thereby effectively supporting the reinforced concrete cantilever plate, and meeting the strength requirements when the reinforced concrete cantilever plate is directly added to the independent I-beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 A schematic diagram of the structure of an independent I-beam provided by an embodiment of the utility model with a reinforced concrete cantilever plate added thereto, wherein the reinforced concrete cantilever plate is located at the top of the reinforced concrete beam;
[0021] Figure 2 A schematic diagram of another perspective of the structure of an independent I-beam with a reinforced concrete cantilever slab provided in an embodiment of the utility model;
[0022] Figure 3 A schematic diagram of the arrangement of the connecting sleeves in the structure of the reinforced concrete cantilever slab added to the independent I-beam provided by the embodiment of the utility model;
[0023] Figure 4 A schematic diagram of the structure of an independent I-beam provided in an embodiment of the utility model with a reinforced concrete cantilever plate added thereto, wherein the reinforced concrete cantilever plate is located in the reinforced concrete beam;
[0024] Figure 5 A schematic structural diagram of an independent I-beam provided in an embodiment of the utility model with a newly added reinforced concrete cantilever plate, wherein the reinforced concrete cantilever plate is located at the bottom of the reinforced concrete beam.
[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:
[0026] 1. Steel column; 2. I-beam; 3. Reinforced concrete beam; 31. Beam longitudinal reinforcement; 32. Beam waist reinforcement; 33. Beam stirrups; 34. Beam tension reinforcement; 4. Reinforced concrete cantilever slab; 41. Slab negative reinforcement; 42. Slab distribution reinforcement; 5. Bolts; 6. Connecting sleeves. DETAILED DESCRIPTION
[0027] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.
[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.
[0029] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.
[0030] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.
[0031] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.
[0032] Reference Figure 1-5 As shown, an embodiment of the present application provides a structure of an independent I-beam with a newly added reinforced concrete cantilever plate, including an I-beam 2, a reinforced concrete beam 3 and a reinforced concrete cantilever plate 4, wherein one end of the I-beam 2 is connected to an existing building steel column 1, and the other end extends away from the steel column 1, the reinforced concrete beam 3 is arranged above the I-beam 2 and parallel to the I-beam 2, the reinforced concrete beam 3 is connected to the I-beam 2 and one end is connected to the steel column 1, the reinforced concrete cantilever plate 4 is arranged horizontally, and the reinforced concrete cantilever plate 4 is located on one side of the reinforced concrete beam 3 in the horizontal direction and is connected to the reinforced concrete beam 3.
[0033] Reference Figure 1-3As shown, specifically, the I-beam 2 is connected to the flange plate on one side of the steel column 1. The I-beam 2 is arranged horizontally and is welded or hingedly connected to the steel column 1. The reinforced concrete beam 3 is located above the I-beam 2 and is also connected to the flange plate on one side of the steel column 1. The reinforced concrete beam 3 is connected to the I-beam 2 through a plurality of bolts 5. The bolts 5 are located at the top of the I-beam 2. The bolts 5 are welded and fixed to the flange plate on the top of the I-beam 2 and anchored into the reinforced concrete beam 3. A plurality of bolts 5 are arranged at intervals along the length direction of the I-beam 2. The connection between the I-beam 2 and the reinforced concrete beam 3 is strengthened by the bolts 5, thereby effectively utilizing the shear and bending resistance of the I-beam 2 and the torsion resistance of the reinforced concrete beam 3.
[0034] Reference Figure 1-2 As shown, the reinforced concrete beam 3 includes a plurality of beam longitudinal reinforcements 31 and a plurality of beam waist reinforcements 32. The beam longitudinal reinforcements 31 and the beam waist reinforcements 32 are both arranged along the length direction of the reinforced concrete beam 3. The beam longitudinal reinforcements 31 are distributed on both sides of the reinforced concrete beam 3 in the vertical direction. The beam waist reinforcements 32 are distributed on both sides of the reinforced concrete beam 3 in the horizontal direction. The beam waist reinforcements 32 are located between the beam longitudinal reinforcements 31 at the top and the beam longitudinal reinforcements 31 at the bottom of the reinforced concrete beam 3. The ends of the beam longitudinal reinforcements 31 and the beam waist reinforcements 32 close to the steel column 1 are both connected to the steel column 1.
[0035] Reference Figure 1-2 As shown, specifically, the reinforced concrete beam 3 also includes a plurality of beam stirrups 33 and a plurality of beam tension bars 34. The beam stirrups 33 are arranged around the circumference of the reinforced concrete beam 3 and are tied and fixed with a plurality of beam longitudinal bars 31 and a plurality of beam waist bars 32. The plurality of beam stirrups 33 are spaced apart along the length direction of the reinforced concrete beam 3, and the beam stirrups 33 are evenly arranged along the entire length of the reinforced concrete beam 3. The beam tension bars 34 connect two beam waist bars 32 at the same height on both sides of the reinforced concrete beam 3 in the horizontal direction, so as to form a steel skeleton of the reinforced concrete beam 3 through the beam longitudinal bars 31, the beam waist bars 32, the beam stirrups 33 and the beam tension bars 34, and then the reinforced concrete beam 3 is formed after pouring concrete.
[0036] Reference Figure 2-3As shown, in order to achieve stable connection and torque transmission between the reinforced concrete beam 3 and the steel column 1, the ends of the beam longitudinal reinforcement 31 and the beam waist reinforcement 32 close to the steel column 1 are connected to the steel column 1 through the connecting sleeve 6, the connecting sleeve 6 between the beam longitudinal reinforcement 31 and the steel column 1 is coaxial with the beam longitudinal reinforcement 31 and is welded and fixed to the steel column 1 and the beam longitudinal reinforcement 31, and the connecting sleeve 6 between the beam waist reinforcement 32 and the steel column 1 is coaxial with the beam waist reinforcement 32 and is welded and fixed to the steel column 1 and the beam waist reinforcement 32. The connecting sleeve 6 is a steel sleeve, and the connecting sleeve 6 is welded to the steel column 1 and the beam longitudinal reinforcement 31 and the beam waist reinforcement 32, and the beam longitudinal reinforcement 31 and the beam waist reinforcement 32 are welded and fixed to the steel column 1, thereby achieving the connection between the reinforced concrete beam 3 and the steel column 1, so that the reinforced concrete beam 3 and the steel column 1 have a higher connection strength, and the torque of the reinforced concrete beam 3 is transmitted to the steel column 1 through the beam longitudinal reinforcement 31, the beam waist reinforcement 32 and the connecting sleeve 6.
[0037] Reference Figure 1 As shown, further, the reinforced concrete cantilever slab 4 includes a plurality of slab surface negative reinforcements 41 and a plurality of slab distribution reinforcements 42, the slab surface negative reinforcements 41 are horizontally arranged and perpendicular to the length direction of the reinforced concrete beam 3, the plurality of slab surface negative reinforcements 41 are distributed at intervals along the length direction of the reinforced concrete beam 3, the slab distribution reinforcements 42 are parallel to the length direction of the reinforced concrete beam 3, the plurality of slab distribution reinforcements 42 are distributed at intervals along the length direction of the slab surface negative reinforcements 41, the plurality of slab distribution reinforcements 42 and the plurality of slab surface negative reinforcements 41 form a steel skeleton of the reinforced concrete cantilever slab 4, so that the reinforced concrete cantilever slab 4 has sufficient structural strength.
[0038] Reference Figure 1 and Figure 4-5 As shown, in order to improve the connection strength between the reinforced concrete beam 3 and the reinforced concrete cantilever slab 4, one end of the slab surface negative reinforcement 41 is anchored in the reinforced concrete beam 3. Specifically, the slab surface negative reinforcement 41 extends in the reinforced concrete beam 3 to the side of the reinforced concrete beam 3 away from the reinforced concrete cantilever slab 4 and is bent, so that the slab surface negative reinforcement 41 has a sufficient anchoring length in the reinforced concrete beam 3 and the slab surface negative reinforcement 41 is bent and anchored to improve the anchoring strength, thereby improving the connection strength between the reinforced concrete beam 3 and the reinforced concrete cantilever slab 4.
[0039] During construction, after the steel skeletons of the reinforced concrete beam 3 and the reinforced concrete cantilever slab 4 are completed, the reinforced concrete beam 3 and the reinforced concrete cantilever slab 4 are cast and molded in one piece.
[0040] Reference Figure 1 and Figure 4-5 As shown, specifically, the reinforced concrete cantilever plate 4 can be connected to the top, middle or bottom of the reinforced concrete beam 3, which can be selected according to actual needs.
[0041] Furthermore, in other embodiments, reinforced concrete cantilever plates 4 may be provided on both sides of the reinforced concrete beam 3 in the horizontal direction. At the same time, both ends of the I-beam column 1 may be connected to two existing building steel columns 1, and the corresponding two ends of the reinforced concrete beam 3 are also connected to the two steel columns 1, so as to further improve the strength of the I-beam column 1.
[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.
Claims
1. A structure of an independent I-beam with a reinforced concrete cantilever slab, characterized in that: include: An I-beam (2), one end of which is connected to an existing building steel column (1), and the other end of which extends away from the steel column (1); A reinforced concrete beam (3) is arranged above the I-beam (2), the reinforced concrete beam (3) is parallel to the I-beam (2), the reinforced concrete beam (3) is connected to the I-beam (2), and one end of the reinforced concrete beam (3) is connected to the steel column (1); A reinforced concrete cantilever slab (4) is arranged horizontally, the reinforced concrete cantilever slab (4) is located on one side of the reinforced concrete beam (3) in the horizontal direction and is connected to the reinforced concrete beam (3), the reinforced concrete cantilever slab (4) comprises a plurality of slab surface negative reinforcements (41), the slab surface negative reinforcements (41) are arranged horizontally and perpendicular to the length direction of the reinforced concrete beam (3), the plurality of slab surface negative reinforcements (41) are distributed at intervals along the length direction of the reinforced concrete beam (3), and one end of the slab surface negative reinforcements (41) is anchored in the reinforced concrete beam (3).
2. The structure of the independent I-beam newly added reinforced concrete cantilever slab according to claim 1 is characterized by: The reinforced concrete beam (3) comprises a plurality of beam longitudinal bars (31) and a plurality of beam waist bars (32), wherein the beam longitudinal bars (31) and the beam waist bars (32) are both arranged along the length direction of the reinforced concrete beam (3), the beam longitudinal bars (31) are distributed on both sides of the reinforced concrete beam (3) in the vertical direction, the beam waist bars (32) are distributed on both sides of the reinforced concrete beam (3) in the horizontal direction, and the beam waist bars (32) are located between the beam longitudinal bars (31) at the top and the beam longitudinal bars (31) at the bottom of the reinforced concrete beam (3), and the ends of the beam longitudinal bars (31) and the beam waist bars (32) close to the steel column (1) are both connected to the steel column (1).
3. The structure of the independent I-beam newly added reinforced concrete cantilever slab according to claim 2 is characterized by: The ends of the beam longitudinal reinforcement (31) and the beam waist reinforcement (32) close to the steel column (1) are connected to the steel column (1) through a connecting sleeve (6); the connecting sleeve (6) between the beam longitudinal reinforcement (31) and the steel column (1) is coaxial with the beam longitudinal reinforcement (31) and is welded and fixed to the steel column (1) and the beam longitudinal reinforcement (31); the connecting sleeve (6) between the beam waist reinforcement (32) and the steel column (1) is coaxial with the beam waist reinforcement (32) and is welded and fixed to the steel column (1) and the beam waist reinforcement (32).
4. The structure of the independent I-beam newly added reinforced concrete cantilever slab according to claim 1 is characterized in that: A plurality of bolts (5) are provided on the top of the I-beam (2); the bolts (5) are welded and fixed to the top flange plate of the I-beam (2) and anchored into the reinforced concrete beam (3); and the plurality of bolts (5) are arranged at intervals along the length direction of the I-beam (2).
5. The structure of the reinforced concrete cantilever slab with independent I-beam according to claim 1 is characterized in that: The reinforced concrete cantilever slab (4) and the reinforced concrete beam (3) are cast in one piece.
6. The structure of the independent I-beam newly added reinforced concrete cantilever slab according to claim 1 is characterized by: The reinforced concrete cantilever plate (4) is located at the top, middle or bottom of the reinforced concrete beam (3).
7. The structure of an independent I-beam with a reinforced concrete cantilever slab according to claim 1 is characterized in that: The reinforced concrete cantilever plates (4) are arranged on both sides of the reinforced concrete beam (3) in the horizontal direction.
8. The structure of an independent I-beam newly added reinforced concrete cantilever slab according to claim 1, characterized in that; The slab surface negative reinforcement (41) extends inside the reinforced concrete beam (3) to a side of the reinforced concrete beam (3) away from the reinforced concrete cantilever slab (4) and is bent.