Reinforcing structure of newly added concrete column
By laying the longitudinal reinforcement of the new column on the outside of the original concrete column and pouring the outer expansion concrete layer, a strong connection between the new concrete column and the original concrete column is achieved, solving the problems of weak structural connection and high construction costs in the existing technology, and achieving the effect of improving structural strength and simplifying construction.
Patent Information
- Application Number
- CN202420569138.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-22
- Publication Date
- 2025-03-07
- Estimated Expiration
- 2034-03-22
AI Technical Summary
When the existing building reinforcement and renovation technology is connected with the original concrete column, it is difficult to meet the requirements of strong columns and weak beams of structures, strong shears and weak bends, and strong nodes and strong anchorages, and the construction cost is high, which affects the aesthetics of the building.
By laying a number of new column longitudinal ribs on the outside of the original concrete column and pouring an external expanded concrete layer on the top and outer sides of the original concrete column, the multiple new column longitudinal ribs pass through the original concrete column and extend into the new concrete column, achieving an integrated connection.
The strong connection between the newly added concrete column and the original concrete column is achieved, the structural strength is ensured, the construction process is simplified, the cost is reduced, and the overall style of the building is not damaged.
Smart Images
Figure CN222576222U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of building reinforcement and reconstruction, and specifically relates to a connection form between a newly added concrete column and an original concrete column. Background Art
[0002] As the owners' requirements for the functions and appearance of buildings are constantly changing, many buildings that have not reached their service life need to be added or partially renovated. In order to ensure the safety of the overall functional use of the structure, it is inevitable to strengthen the structure by adding beams, columns and other components. In order to meet the changes in the owners' requirements for the functional use or appearance of the building, new components are added on the basis of the original concrete components. Since the connection between the new components and the original components is not cast at one time, and the steel bars are overlapped at the same section, both the integrity and stability do not meet the requirements of strong columns and weak beams, strong shear and weak bending, strong nodes and strong anchorage.
[0003] In current reinforcement and renovation projects, new concrete columns are often added by destroying the core areas of the original columns and beams and then re-pouring concrete or embedding reinforcement. The core area is damaged, causing irreversible damage to the overall structure, requiring a huge amount of renovation work, making construction inconvenient and difficult to ensure the quality of construction. If the reinforcement method is used, the length of the embedded reinforcement is large, the construction quality cannot be guaranteed, and the beams and columns in the core area are densely reinforced, which can easily break the reinforcement and leave safety hazards. Alternatively, the lower columns of the original structure are enlarged, and piers are added to the upper columns. The newly added columns are anchored to the newly added piers. This method increases the cross-sections of the upper and lower columns, affecting the building space and the later usability, wasting building area and affecting the appearance.
[0004] Traditional projects of increasing the cross section and outsourcing steel will damage the overall appearance of the structure. In addition, most of the concrete components with increased cross section use grouting materials, which is very expensive. The properties of outsourcing steel and concrete are completely different, which leads to major changes in the later decoration process. Therefore, an effective construction method must be adopted. The commonly used technical means such as outsourcing steel and increasing the interface will destroy the overall beauty of the building. At the same time, the high cost makes the owner unit discouraged. How to solve the problem of meeting the structural safety requirements, not destroying the overall style of the building, and reducing costs has become an urgent problem to be solved. Utility Model Content
[0005] In order to solve the technical problems existing in the prior art, the utility model provides a reinforcement structure of a newly added concrete column, which has high structural strength, low cost and strong practicality.
[0006] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a reinforcement structure of a newly added concrete column, including an original concrete column, a plurality of original column longitudinal bars are arranged in the original concrete column, an original concrete beam is arranged on the top of the original concrete column, and a plurality of original beam longitudinal bars are arranged in the original concrete beam.
[0007] A plurality of newly added column longitudinal reinforcements are arranged on the outside of the original concrete column. The upper part of the newly added column longitudinal reinforcements passes through the top of the original concrete column and then extends upward. The plurality of newly added column longitudinal reinforcements at the bottom are tied together by a plurality of newly added column stirrups. An outward expansion concrete layer is poured outside the original concrete column. The bottoms of the plurality of newly added column longitudinal reinforcements and the plurality of newly added column stirrups are all placed in the outward expansion concrete layer.
[0008] A newly added concrete column is arranged on the top of the original concrete column, and an outward-expanded concrete layer is poured on the outer side of the original concrete column. A plurality of newly added column longitudinal reinforcements are arranged in the outward-expanded concrete layer. The plurality of newly added column longitudinal reinforcements are arranged vertically, and the plurality of newly added column longitudinal reinforcements on the same side are arranged at equal intervals; the plurality of newly added column longitudinal reinforcements placed on the outside of the outward-expanded concrete layer are tied together by a plurality of bottom newly added column stirrups, and the plurality of bottom newly added column stirrups placed on the same side are arranged at equal intervals.
[0009] The newly added column longitudinal reinforcement passes through the original concrete column and extends into the newly added concrete column. The newly added column longitudinal reinforcement extending outside the top of the original concrete column is tied together by multiple top newly added column stirrups.
[0010] Among them, there is a distance between the newly added column longitudinal reinforcement and the original concrete column.
[0011] Among them, the middle part of the newly added column longitudinal reinforcement is arranged inclined.
[0012] Compared with the prior art, the utility model has the following specific beneficial effects: the newly added concrete columns and the original concrete columns are connected by a plurality of newly added column longitudinal bars, and the plurality of newly added column longitudinal bars are connected in an integrated manner, abandoning the traditional anchor bolt or embedded bar structure, without interrupting the stress-bearing steel bars of the original beam-column structure, and without causing structural damage to the original core structure, and having little effect on the structural performance of the building, thereby ensuring the structural strength of the entire beam-column structure, and having simple construction, high reinforcement efficiency, and good applicability, which can meet the structural safety requirements without destroying the overall style of the building, thereby reducing the construction cost and can be widely promoted and applied. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the utility model.
[0014] Figure 2 It is a schematic diagram of the structure of the utility model in a top view.
[0015] Figure 3 for Figure 1 Schematic diagram of the cross section at AA in the middle.
[0016] Figure 4 for Figure 1 Schematic diagram of the cross section at BB in the middle.
[0017] In the figure, 1 is the original concrete column, 11 is the original column longitudinal reinforcement, 2 is the original concrete beam, 21 is the original beam longitudinal reinforcement, 3 is the newly added concrete column, 31 is the newly added column longitudinal reinforcement, 32 is the newly added column stirrups at the top, 4 is the outward expanded concrete layer, and 41 is the newly added column stirrups at the bottom. DETAILED DESCRIPTION
[0018] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0019] like Figure 1-4 As shown, a reinforcement structure of a newly added concrete column includes an original concrete column 1, in which a plurality of original column longitudinal bars 11 are arranged, and an original concrete beam 2 is arranged on the top of the original concrete column 1, in which a plurality of original beam longitudinal bars 21 are arranged.
[0020] A newly added concrete column 3 is arranged on the top of the original concrete column 1, and a plurality of newly added column longitudinal bars 31 are arranged in the expanded concrete layer 4. The plurality of newly added column longitudinal bars 31 are arranged vertically, and the plurality of newly added column longitudinal bars 31 on the same side are arranged at equal intervals. The plurality of newly added column longitudinal bars 31 on the outside of the expanded concrete layer 4 are tied together by a plurality of bottom newly added column stirrups 41, and the plurality of bottom newly added column stirrups 41 on the same side are arranged at equal intervals. The expanded concrete layer 4 is poured on the outer surface of the original concrete column 1, without destroying the core area of the original structure, reducing the structural damage to a minimum, and reducing the construction difficulty. The cross-sectional area of the expanded concrete layer 4 only needs to meet the anchoring requirements, which guarantees the rationality of the building space to the greatest extent and avoids large-scale waste.
[0021] The newly added column longitudinal reinforcement 31 passes through the original concrete column 1 and extends into the newly added concrete column 3. The newly added column longitudinal reinforcement 31 extending outside the top of the original concrete column 1 is tied together by multiple top newly added column stirrups 32. After grouting, a newly added concrete column 3 is generated. The newly added concrete column 3 and the original concrete column 1 are placed on the same central axis, and the cross-sectional area of the newly added concrete column 3 is smaller than the cross-sectional area of the original concrete column 1.
[0022] There is a gap between the newly added column longitudinal reinforcement 31 and the original concrete column 1 .
[0023] The newly added column longitudinal reinforcement 31 is bent and anchored at 1:6, and the middle part of the newly added column longitudinal reinforcement 31 is arranged inclined.
[0024] The newly added concrete column 3 of the utility model is connected to the original concrete column 1 by a plurality of newly added column longitudinal reinforcements 31, and the plurality of newly added column longitudinal reinforcements 31 realize an integrated connection. The forces of the newly added concrete column 3 and the original concrete column 1 are synchronously transmitted. Under the premise of avoiding damage to the original core structure, the reinforcement requirements of the original building structure are achieved, the structural performance of the building is less affected, the structural strength of the entire beam-column structure is ensured, the construction is simple, the reinforcement efficiency is high, and the applicability is good. It can meet the structural safety requirements without destroying the overall style of the building, reduce the construction cost, and can be widely promoted and applied.
[0025] 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 and improvements made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims
1. A reinforced structure for a newly added concrete column, comprising an original concrete column (1), wherein a plurality of original column longitudinal bars (11) are arranged in the original concrete column (1), an original concrete beam (2) is arranged at the top of the original concrete column (1), wherein a plurality of original beam longitudinal bars (21) are arranged in the original concrete beam (2), and characterized in that: A newly added concrete column (3) is arranged on the top of the original concrete column (1); an outwardly expanded concrete layer (4) is poured on the outer side of the original concrete column (1); a plurality of newly added column longitudinal bars (31) are arranged in the outwardly expanded concrete layer (4); the plurality of newly added column longitudinal bars (31) arranged outside the outwardly expanded concrete layer (4) are tied together by a plurality of bottom newly added column stirrups (41); the newly added column longitudinal bars (31) pass through the original concrete column (1) and extend into the newly added concrete column (3); the newly added column longitudinal bars (31) extending outside the top of the original concrete column (1) are tied together by a plurality of top newly added column stirrups (32).
2. A reinforcement structure for a newly added concrete column according to claim 1, characterized in that: A spacing is left between the newly added column longitudinal reinforcement (31) and the original concrete column (1).
3. The reinforcement structure of a newly added concrete column according to claim 1 is characterized in that: The middle portion of the newly added column longitudinal reinforcement (31) is arranged inclined.