Secondary beam newly-added flange structure
By adding flange steel bar structure and concrete to the secondary beam to form local reinforcement, the high cost and additional load problems caused by the overall increase in the cross-section of the secondary beam are solved, and the structural strength is improved and construction costs are reduced.
Patent Information
- Application Number
- CN202422018987.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-20
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-08-20
AI Technical Summary
In the prior art, the overall increase in the secondary beam section leads to problems such as large workload, high cost, and additional load.
The newly added flange structure of the secondary beam is adopted, including the newly added flange steel bar structure and the newly added flange concrete. By binding and implanting the steel bars at the top of the secondary beam, the concrete is poured and wrapped around the steel bar structure, forming a local flange reinforcement and connecting it into a whole.
The local cross-section of the secondary beam is improved to enhance the reinforcement effect, reduce additional load, reduce construction costs and workload, and enhance structural strength.
Smart Images
Figure CN222976476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of building construction, in particular to a structure for adding a flange to a secondary beam. Background Technique
[0002] The main beam and the secondary beam are one of the main structures for bearing and transferring loads in building structures. In the structure reinforcement project, it is often necessary to reinforce the secondary beam. The conventional reinforcement method is to increase the cross-section of the secondary beam.
[0003] In the prior art, the method of increasing the cross-section of the secondary beam is to increase the cross-section of the secondary beam as a whole. This construction method has a large workload and high cost. According to the load distribution requirements, most of the loads of the secondary beam are concentrated at the intersection position of the main beam and the secondary beam. Increasing the cross-section of the secondary beam as a whole will increase more additional loads. Therefore, it is necessary to provide a structure for adding a flange to a secondary beam, which can solve the problems of large workload, high cost and increased additional loads in the prior art of increasing the cross-section of the secondary beam as a whole. Summary of the Invention
[0004] The purpose of the utility model is to provide a structure for adding a flange to a secondary beam, which can solve the problems of large workload, high cost and increased additional loads in the prior art of increasing the cross-section of the secondary beam as a whole.
[0005] The utility model is realized as follows:
[0006] A structure for adding a flange to a secondary beam includes a newly added flange steel bar structure and newly added flange concrete; the newly added flange steel bar structure is tied at the top of the secondary beam, and the newly added flange steel bar structure is implanted into the secondary beam and the main beam and fixedly connected with the beam steel bars in the secondary beam and the main beam; the newly added flange concrete is poured to wrap the newly added flange steel bar structure to form a structure for adding a flange to the secondary beam. The structure for adding a flange to the secondary beam is connected with the secondary beam and the main beam into a whole, and the structure for adding a flange to the secondary beam extends to be connected with the floor slab.
[0007] The newly added flange steel bar structure includes newly added flange top bars, newly added flange bottom bars and newly added flange stirrups; the newly added flange bottom bars are implanted into the main beam, the newly added flange top bars are arranged parallel to the upper side of the newly added flange bottom bars and connected with the beam steel bars in the main beam; the newly added flange stirrups are tied on the newly added flange top bars and the newly added flange bottom bars, and the newly added flange stirrups are implanted into the secondary beam and connected with the beam steel bars in the secondary beam.
[0008] The newly added flange stirrups are in a U-shaped structure. A pair of newly added flange stirrups are symmetrically arranged on both sides of the top of the secondary beam. The open ends of the pair of newly added flange stirrups are implanted into the secondary beam and lapped with the top of the secondary beam stirrups in the secondary beam.
[0009] The depth of the newly added flange stirrups implanted into the secondary beam is 15 times the diameter of the newly added flange stirrups; the lapping length of the newly added flange stirrups and the top of the secondary beam stirrups is 10 times the diameter of the newly added flange stirrups.
[0010] The arrangement spacing and diameter of the newly added flange stirrups are the same as those of the secondary beam stirrups in the secondary beam.
[0011] On both sides of the secondary beam, two newly added flange bottom reinforcements are arranged at intervals, and both of the two newly added flange bottom reinforcements are implanted into the main beam; on both sides of the secondary beam, two newly added flange top reinforcements are arranged at intervals, and both of the two newly added flange top reinforcements are connected to the main beam stirrups in the main beam.
[0012] The depth of the newly added flange bottom reinforcement implanted into the main beam is 15 times the diameter of the newly added flange bottom reinforcement.
[0013] At the joint between the floor slab and the newly added flange concrete, a roughened inclined surface is formed, so that the newly added flange concrete and the floor slab are combined into a whole through the roughened inclined surface.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] 1. Since the utility model is provided with a newly added flange steel bar structure and newly added flange concrete, the structure strength of the secondary beam with the newly added flange structure of the reinforced concrete structure is high. At the joint of the main beam, secondary beam and floor slab, local section enlargement treatment is carried out on the secondary beam. The structure strength is high, and there is no need to enlarge the whole section of the secondary beam. It can minimize the additional load while ensuring the reinforcement effect of the secondary beam, and is beneficial to reducing the workload and construction cost.
[0016] 2. Since the utility model is provided with newly added flange top reinforcements, newly added flange bottom reinforcements and newly added flange stirrups, the main beam, secondary beam and the newly added flange structure of the secondary beam are connected into a whole by welding and fixing the newly added flange top reinforcements to the main beam stirrups, implanting the newly added flange bottom reinforcements into the main beam, and implanting the newly added flange stirrups into the secondary beam and welding and fixing them to the secondary beam stirrups, thereby ensuring the local section enlargement reinforcement effect of the secondary beam.
[0017] 3. Since the utility model is provided with a roughened inclined surface, it can improve the bonding strength between the floor slab and the newly added flange concrete, increase the bonding area, so as to ensure that the newly added flange structure of the secondary beam and the floor slab are connected into a whole, and further ensure the local section enlargement reinforcement effect of the secondary beam. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is the construction elevation view of the newly added flange structure of the secondary beam of the utility model.
[0019] In the figure, 1 is the newly added flange concrete, 2 is the secondary beam, 201 is the secondary beam stirrup, 3 is the main beam, 4 is the floor slab, 401 is the roughened inclined surface, 501 is the newly added flange top reinforcement, 502 is the newly added flange bottom reinforcement, and 503 is the newly added flange stirrup. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0020] The present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0021] Please refer to the attached Figure 1 , a secondary beam new flange structure, including a new flange steel bar structure and new flange concrete 1; the new flange steel bar structure is tied at the top of the secondary beam 2, and the new flange steel bar structure is implanted into the secondary beam 2 and the main beam 3 and fixedly connected to the beam steel bars in the secondary beam 2 and the main beam 3; the new flange concrete 1 is poured to wrap the new flange steel bar structure to form a secondary beam new flange structure, and the secondary beam new flange structure is connected to the secondary beam 2 and the main beam 3 as a whole, and the secondary beam new flange structure extends to be connected to the floor slab 4.
[0022] The new flange steel bar structure and the new flange concrete 1 form a reinforced concrete secondary beam new flange structure, which is used for locally increasing the cross-section of the secondary beam 2 at the intersection of the main beam 3, the secondary beam 2 and the floor slab 4. It has high structural strength, can minimize the additional load while ensuring the reinforcement effect of the secondary beam 2, and is beneficial to reducing the workload and construction cost.
[0023] The new flange steel bar structure includes new flange top reinforcement 501, new flange bottom reinforcement 502 and new flange stirrups 503; the new flange bottom reinforcement 502 is implanted into the main beam 3, the new flange top reinforcement 501 is arranged in parallel above the new flange bottom reinforcement 502 and connected to the beam steel bars in the main beam 3; the new flange stirrups 503 are tied on the new flange top reinforcement 501 and the new flange bottom reinforcement 502, and the new flange stirrups 503 are implanted in the secondary beam 2 and connected to the beam steel bars in the secondary beam 2.
[0024] By implanting the new flange stirrups 503 in the secondary beam 2 and connecting them to the beam steel bars in the secondary beam 2, the reliable connection between the new flange steel bar structure and the secondary beam 2 is ensured. By implanting the new flange top reinforcement 501 in the main beam 3 and connecting the new flange bottom reinforcement 502 to the beam steel bars in the main beam 3, the reliable connection between the new flange steel bar structure and the main beam 3 is ensured, so as to ensure that the secondary beam new flange structure is connected to the secondary beam 2 and the main beam 3 as a firm whole after the new flange concrete 1 is poured.
[0025] The steel bar specifications and dimensions of the new flange top reinforcement 501, the new flange bottom reinforcement 502 and the new flange stirrups 503 can be adjusted adaptively according to the actual reinforcement requirements. The structural forms of the top reinforcement, bottom reinforcement and stirrups are the conventional steel bar structures of the beam flange, and the layout and tying process thereof will not be elaborated here.
[0026] The new flange stirrups 503 are in a U-shaped structure. A pair of new flange stirrups 503 are symmetrically arranged on both sides of the top of the secondary beam 2, and the open ends of the pair of new flange stirrups 503 are implanted into the secondary beam 2 and lapped with the top of the secondary beam stirrups 201 (i.e., beam steel bars) in the secondary beam 2.
[0027] Since the newly added flanges are located on both sides of the secondary beam 2, the newly added flange steel bar structure can be arranged in a symmetrical structural form. A pair of newly added flange stirrups 503 of the U-shaped structure can ensure the connection reliability with the secondary beam 2 by implanting them into the secondary beam 2 at the bottom and lapping with the secondary beam stirrups 201 at the top.
[0028] The depth of the newly added flange stirrup 503 implanted into the secondary beam 2 is 15 times the diameter of the newly added flange stirrup 503, that is, 15d; the lapping length of the newly added flange stirrup 503 with the top of the secondary beam stirrup 201 is 10 times the diameter of the newly added flange stirrup 503, that is, 10d.
[0029] The depth of the newly added flange stirrup 503 implanted into the secondary beam 2 and the lapping length of the newly added flange stirrup 503 with the top of the secondary beam stirrup 201 can be adjusted adaptively according to the actual construction requirements, as long as sufficient connection strength is ensured.
[0030] The arrangement spacing and diameter of the newly added flange stirrup 503 are the same as those of the secondary beam stirrup 201 in the secondary beam 2.
[0031] Preferably, the newly added flange stirrup 503 can be arranged correspondingly according to the design of the secondary beam stirrup 201 to ensure uniform stress of the newly added flange structure of the secondary beam and the secondary beam 2.
[0032] Two newly added flange bottom bars 502 are arranged at intervals on both sides of the secondary beam 2 respectively, and both two newly added flange bottom bars 502 are implanted into the main beam 3; two newly added flange top bars 501 are arranged at intervals on both sides of the secondary beam 2 respectively, and both two newly added flange top bars 501 are connected to the main beam stirrups (i.e., beam steel bars, not shown in the figure) in the main beam 3.
[0033] The four newly added flange bottom bars 502 and the four newly added flange top bars 501 are both arranged symmetrically on both sides of the secondary beam 2, the four newly added flange bottom bars 502 and the four newly added flange top bars 501 are arranged corresponding to each other up and down, and the spacing between the newly added flange bottom bars 502 and the newly added flange top bars 501 can be adjusted adaptively according to the thickness of the newly added flange structure of the secondary beam.
[0034] Through the implantation of the newly added flange bottom bars 502 into the main beam 3 and the welding fixation of the newly added flange top bars 501 with the main beam stirrups, the connection reliability between the newly added flange steel bar structure and the main beam 3 is ensured, so as to ensure that the newly added flange structure of the secondary beam can form a whole with the main beam 3 and the secondary beam 2.
[0035] The depth of the newly added flange bottom bar 502 implanted into the main beam 3 is 15 times the diameter of the newly added flange bottom bar 502, that is, 15d.
[0036] The implantation depth of the newly added flange bottom bar 502 into the main beam 3 can be adjusted adaptively according to the actual construction requirements, and the newly added flange top bar 501 is vertically welded and fixed with the main beam stirrup.
[0037] At the joint between the floor slab 4 and the newly added flange concrete 1, a roughened inclined surface 401 is formed, so that the newly added flange concrete 1 and the floor slab 4 are combined into a whole through the roughened inclined surface 401.
[0038] By roughening the connection part between the floor slab 4 and the newly added flange structure of the secondary beam, the bonding strength between the newly added flange concrete 1 and the floor slab 4 is increased. At the same time, the bonding area between the newly added flange concrete 1 and the floor slab 4 is increased through the roughened inclined surface 401, further improving the connection integrity and firmness between the newly added flange structure of the secondary beam and the floor slab 4.
[0039] Please refer to the attached Figure 1 , the construction method of the utility model is as follows:
[0040] 1. Chisel and remove the side area and top of the secondary beam 2, retain the steel bars of the secondary beam 2, and expose the secondary beam stirrups 201 of the secondary beam 2.
[0041] 2. Process the newly added flange stirrups 503 with a U-shaped structure. The top of the open end of the newly added flange stirrups 503 is lap-welded with the top of the secondary beam stirrups 201 by single-sided welding, and the lap length is 10d. The bottom of the open end of the newly added flange stirrups 503 is implanted into the secondary beam 2, and the implantation depth is 15d.
[0042] A pair of newly added flange stirrups 503 will not be elaborated here one by one.
[0043] 3. Chisel and remove the top of the main beam 3, retain the steel bars of the main beam 3, and expose the main beam stirrups of the main beam 3.
[0044] 4. Process the newly added flange top reinforcement 501 and the newly added flange bottom reinforcement 502 with a diameter of 12 mm and straight shape. The newly added flange top reinforcement 501 is welded to the main beam stirrups, and the newly added flange bottom reinforcement 502 is implanted into the main beam 3, and the implantation depth is 15d.
[0045] 5. Bind and fix the newly added flange top reinforcement 501, the newly added flange bottom reinforcement 502 and the newly added flange stirrups 503 to form a newly added flange steel bar structure.
[0046] 6. Roughen the joint between the floor slab 4 and the newly added flange structure of the secondary beam to form a roughened inclined surface 401.
[0047] 7. Set up the formwork for the newly added flange structure of the secondary beam, and use concrete with a strength one level higher than that of the secondary beam 2 as the newly added flange concrete 1 for pouring. The newly added flange concrete 1 wraps the newly added flange steel bar structure to form the newly added flange structure of the secondary beam.
[0048] The newly added flange structure of the secondary beam and the secondary beam 2 and the main beam 3 are combined into a firm whole through the concrete at the chiseled part and the connection and placement of the steel bars, and the newly added flange structure of the secondary beam is connected and fixed to the floor slab 4 through the roughened inclined surface 401.
[0049] The above are only the preferred embodiments of the present utility model and are not intended to limit the protection scope of the present utility model. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A secondary beam additional flange structure, characterized by: The invention comprises a newly added flange steel bar structure and newly added flange concrete (1); the newly added flange steel bar structure is tied to the beam top of the secondary beam (2), the newly added flange steel bar structure is implanted into the secondary beam (2) and the main beam (3) and is fixedly connected with the beam steel bars in the secondary beam (2) and the main beam (3); the newly added flange concrete (1) is poured and wrapped around the newly added flange steel bar structure to form a newly added flange structure of the secondary beam, the newly added flange structure of the secondary beam is connected to the secondary beam (2) and the main beam (3) to form a whole, and the newly added flange structure of the secondary beam is extended to be connected with the floor slab (4).
2. The secondary beam additional flange structure according to claim 1 is characterized in that: The newly added flange reinforcement structure comprises newly added flange surface reinforcement (501), newly added flange bottom reinforcement (502) and newly added flange stirrups (503); the newly added flange bottom reinforcement (502) is implanted into the main beam (3), the newly added flange surface reinforcement (501) is arranged in parallel above the newly added flange bottom reinforcement (502) and is connected to the beam reinforcement in the main beam (3); the newly added flange stirrups (503) are tied to the newly added flange surface reinforcement (501) and the newly added flange bottom reinforcement (502), and the newly added flange stirrups (503) are implanted into the secondary beam (2) and are connected to the beam reinforcement in the secondary beam (2).
3. The secondary beam additional flange structure according to claim 2 is characterized in that: The newly added flange stirrups (503) are of a U-shaped structure, and a pair of newly added flange stirrups (503) are symmetrically arranged on both sides of the beam top of the secondary beam (2), and the open ends of the pair of newly added flange stirrups (503) are implanted into the secondary beam (2) and overlapped with the top of the secondary beam stirrups (201) in the secondary beam (2).
4. The secondary beam additional flange structure according to claim 3 is characterized in that: The depth of the newly added flange stirrups (503) implanted into the secondary beam (2) is 15 times the diameter of the newly added flange stirrups (503); the overlap length between the newly added flange stirrups (503) and the top of the secondary beam stirrups (201) is 10 times the diameter of the newly added flange stirrups (503).
5. The secondary beam additional flange structure according to claim 4 is characterized in that: The arrangement spacing and diameter of the newly added flange stirrups (503) are consistent with the arrangement spacing and diameter of the secondary beam stirrups (201) in the secondary beam (2).
6. The secondary beam additional flange structure according to claim 2 is characterized in that: Two newly added flange bottom bars (502) are arranged at intervals on both sides of the secondary beam (2), and the two newly added flange bottom bars (502) are both embedded in the main beam (3); two newly added flange surface bars (501) are arranged at intervals on both sides of the secondary beam (2), and the two newly added flange surface bars (501) are connected to the main beam stirrups in the main beam (3).
7. The secondary beam additional flange structure according to claim 6 is characterized in that: The depth of the newly added flange bottom reinforcement (502) implanted into the main beam (3) is 15 times the diameter of the newly added flange bottom reinforcement (502).
8. The secondary beam additional flange structure according to claim 1 is characterized in that: A roughened slope (401) is formed at the junction of the floor slab (4) and the newly added flange concrete (1), so that the newly added flange concrete (1) and the floor slab (4) are combined into a whole through the roughened slope (401).