Reinforcing structure of rectangular reinforced concrete column wrapped with variable cross-section angle steel
By using technical means such as longitudinally encapsulating angle steel in the middle of the column and connecting angle steel in the core area of nodes on rectangular reinforced concrete columns, the problem in the existing technology that it is difficult to meet the upper and lower penetration of equal-section angle steel is solved, and the applicable scope of the reinforcement method is expanded and the column efficiency is improved. carrying capacity.
Patent Information
- Application Number
- CN202420127737.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-18
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-01-18
AI Technical Summary
The prior art is difficult to meet the outsourcing steel reinforced structure of rectangular reinforced concrete columns that penetrate up and down with equal-section angle steel, especially when the difference between the column cross-section width or height and the width of the concrete beam is small.
Technical means such as longitudinally wrapped angle steel in the middle of the column, connecting angle steel in the core area of the node, reinforcing steel plate connecting the angle steel in the core area of the node, reinforced angle steel hoops, transverse steel patchwork plates, equal-generation bolts, equal-generation bolt anchor angle steel, anchor bolts and other technical means are used to strengthen the rectangular steel bars. Concrete columns are reinforced to ensure that the angle steel can be penetrated up and down.
This method expands the applicable scope of the steel-clad reinforcement method for rectangular reinforced concrete columns, improves the load-bearing capacity and stability of the columns, and solves the problem of strengthening rectangular reinforced concrete columns that are difficult to penetrate up and down in the existing technology.
Smart Images
Figure CN222376099U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rectangular reinforced concrete column outer-wrapped variable-section angle steel reinforcement structure, belonging to the technical field of building structures. Background Art
[0002] The steel-clad reinforcement method is a commonly used method for strengthening rectangular reinforced concrete columns with insufficient bearing capacity. However, the reinforcement structure provided in the existing specifications and drawings must meet the following applicable conditions: the column section width or height is greater than the beam width, and the difference between the column section width or height and the beam section width in that direction must meet the requirement that the steel-clad angle steel penetrates up and down. There is no mature practice for the steel-clad reinforcement structure of rectangular reinforced concrete columns where the difference between the column section width or height and the concrete beam width is small and it is difficult to meet the requirement that the angle steel of equal section penetrates up and down.
[0003] Therefore, there is an urgent need in the art for an externally wrapped variable-section angle steel reinforcement structure that can penetrate up and down a rectangular reinforced concrete column. Summary of the invention
[0004] The utility model aims to solve the problem in the prior art that it is difficult to meet the requirements of the outer steel-clad reinforcement structure of a rectangular reinforced concrete column with equal-section angle steels passing through it from top to bottom.
[0005] In order to achieve the purpose of solving the above-mentioned problems, the technical solution adopted by the utility model is to provide a rectangular reinforced concrete column outer wrapped variable-section angle steel reinforcement structure, including reinforced concrete beams arranged along the rectangular reinforced concrete column and along its main axis direction, the four edges of the rectangular reinforced concrete column in the non-beam-column connection area are all provided with longitudinal outer wrapped angle steel in the middle of the column, and the node core area connecting angle steel is tightly attached to the column angle direction in the beam-column connection area.
[0006] Preferably, the longitudinal outer angle steels in the middle of each column are transversely connected by transverse steel tie plates.
[0007] Preferably, the length of the angle steel connecting the core area of the node is smaller than the length of the longitudinal outer angle steel in the middle of the column, a reinforcing steel plate is arranged on the outer side of the angle steel connecting the core area of the node, and the angle steel connecting the core area of the node and the reinforcing steel plate both penetrate the floor slab.
[0008] Further preferably, the reinforcing steel plate connecting the angle steel in the core area of the column node extends outward from the top or bottom of the beam to the larger value of half the column section height or 500 mm.
[0009] Preferably, reinforcing angle steel hoops are provided at the top and bottom of the reinforced concrete column to strengthen the connection transition area between the longitudinal outer angle steel in the middle of the column and the connecting angle steel in the node core area.
[0010] Further preferably, the reinforcing angle steel hoop is sleeved on the outer surface of the rectangular reinforced concrete column at the top or bottom of the beam, and is fixedly connected to the reinforced concrete beam by anchor bolts.
[0011] Further preferably, in the reinforced concrete column, the beamless side of the side column or corner column is reinforced with a steel plate, which is welded with a reinforcing angle steel hoop to form a reinforced composite steel hoop.
[0012] Preferably, in the reinforced concrete column, a double row of anchor bolts may be provided on the side without beams to be fixedly connected to the reinforced concrete column.
[0013] Preferably, the node core area of the beam-column overlapping area of the reinforced concrete column is provided with equal generation bolts passing through the beam and being anchored and connected with equal generation bolt anchor angle steels.
[0014] Preferably, the top and bottom anchorage ends of the rectangular reinforced concrete column wrapped with variable-section angle steel reinforcement structure should extend to the point where no reinforcement layer is required, and the extension distance can be the larger value of the column section height or 1000mm.
[0015] Preferably, the thickness and width of the transverse steel tie plates at the top and bottom anchoring ends of the rectangular reinforced concrete column wrapped with variable-section angle steel reinforcement structure should be stronger than other transverse steel tie plates, and should be fixed by anchoring into the column with anchor bolts.
[0016] Compared with the prior art, the utility model has the following beneficial effects:
[0017] 1. The utility model adopts longitudinal outer angle steel in the middle of the column, connecting angle steel in the core area of the node, reinforcing steel plate for connecting angle steel in the core area of the node, reinforcing angle steel hoop, transverse steel tie plate, equal generation bolts, equal generation bolt anchoring angle steel, anchor bolts, etc. to reinforce the rectangular reinforced concrete column, which expands the scope of application of the outer steel reinforcement method of rectangular reinforced concrete column. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the main cross-sectional structure of a method for reinforcing a rectangular reinforced concrete column with insufficient bearing capacity by enclosing variable-section angle steel in an embodiment of the utility model. Left: longitudinal cross-sectional diagram; right: cross-sectional diagram.
[0019] Figure 2 The schematic diagram of the cross-sectional structure of a column cross section with a rectangular reinforced concrete column having insufficient bearing capacity and reinforced by a variable-section angle steel is shown in the embodiment of the utility model, corresponding to Figure 1 AA section in.
[0020] Figure 3 The schematic diagram of the top and bottom structure of a rectangular reinforced concrete column with insufficient bearing capacity and a variable cross-section angle steel reinforcement method in which the difference between the cross-section height of a bidirectional column and the width of the beam is less than the length of the longitudinal outer angle steel limb in the middle of the column in the embodiment of the utility model corresponds to Figure 1 BB section in.
[0021] Figure 4 The schematic diagram of the top and bottom structure of a beam in a top view of a rectangular reinforced concrete column with insufficient bearing capacity and a method for reinforcing it with variable cross-section angle steel in an embodiment of the utility model, where the difference between the cross-section height of a one-way column and the width of the beam is less than the length of the longitudinal outer angle steel limb in the middle of the column, corresponds to Figure 1 DD section in.
[0022] Figure 5 The schematic diagram of the top view of the node core area of a method for reinforcing a rectangular reinforced concrete column with insufficient bearing capacity and variable cross-section angle steel in an embodiment of the utility model, where the difference between the cross-section height of a bidirectional column and the width of the beam is less than the length of the longitudinal outer angle steel limb in the middle of the column, corresponds to Figure 1 CC section in.
[0023] Figure 6 The schematic diagram of the top view of the core area of the node structure of the reinforced concrete column with insufficient bearing capacity and variable cross-section angle steel reinforcement method in the embodiment of the utility model is shown, where the difference between the cross-section height of the one-way column and the beam width is less than the length of the longitudinal outer angle steel limb in the middle of the column, corresponding to Figure 1 EE profile in.
[0024] Figure 7 The figure shows a schematic diagram of the top view of the beam bottom structure of a rectangular reinforced concrete column with insufficient bearing capacity and a variable cross-section angle steel reinforcement method in which the difference between the cross-section height of a one-way column and the width of the beam is less than the length of the longitudinal outer angle steel limb in the middle of the column in the embodiment of the utility model, corresponding to Figure 1 GG section in.
[0025] Figure 8 The schematic diagram of the top view of the core area of the node structure of the reinforced concrete column with insufficient bearing capacity and variable cross-section angle steel reinforcement method in the embodiment of the utility model is shown, where the difference between the cross-section height of the one-way column and the beam width is less than the length of the longitudinal outer angle steel limb in the middle of the column, corresponding to Figure 1 FF section in.
[0026] Figure numerals: 1. Rectangular reinforced concrete column; 2. Reinforced concrete beam; 3. Longitudinal outer angle steel in the middle of the column; 4. Connection angle steel in the core area of the node; 5. Reinforcement steel plate for connecting angle steel in the core area of the node; 6. Strengthening angle steel hoop; 7. Horizontal steel tie plate; 8. Equivalent bolt; 9. Equivalent bolt anchoring angle steel; 10. Anchor bolt. DETAILED DESCRIPTION
[0027] In order to make the present invention more clearly understood, a preferred embodiment is described in detail with reference to the accompanying drawings as follows:
[0028] See also Figure 1A rectangular reinforced concrete column outer wrapped variable cross-section angle steel reinforcement structure, comprising a rectangular reinforced concrete column 1 and a reinforced concrete beam 2, wherein the reinforced concrete beam 2 is arranged along the main axis direction of the rectangular reinforced concrete column 1. The longitudinal outer wrapped angle steel 3 in the middle of the column is attached to the corner surface of the non-beam-column connection area of the rectangular reinforced concrete column 1 along the column axis direction, and the node core area connection angle steel 4 is located in the beam-column connection area. The longitudinal outer wrapped angle steel 3 in the middle of the column and the node core area connection angle steel 4 are both arranged at the corner of the outer wrapped concrete column section. The limb length of the node core area connection angle steel 4 is less than the limb length of the longitudinal outer wrapped angle steel 3 in the middle of the column. The node core area connection angle steel reinforcement steel plate 5 needs to be arranged outside the node core area connection angle steel 4. The node core area connection angle steel 4 and the node core area connection angle steel reinforcement steel plate 5 need to penetrate the floor slab. Reinforced angle steel hoops 6 are arranged at the top and bottom of the reinforced concrete beam 2 to strengthen the transition area between the longitudinal outer wrapped angle steel 3 in the middle of the column and the node core area connection angle steel 4. An equal-generation bolt 8 is arranged in the node core area of the beam-column overlapping area to pass through the beam and be anchored and connected with the equal-generation bolt anchor angle steel 9.
[0029] See also Figure 2 The longitudinal outer angle steel 3 in the middle of the column is located at the corner of the cross section of the rectangular concrete column 1, and the longitudinal outer angle steel 3 is horizontally connected by a horizontal steel tie plate 7.
[0030] See also Figure 3 , Figure 4 , Figure 6 , Figure 7 The reinforcing angle steel hoop 6 is sleeved on the outer surface of the rectangular reinforced concrete column 1 and fixedly connected to the reinforced concrete beam 2 through the anchor bolt 10. The reinforcing angle steel hoop 6 arranged at the top and bottom of the reinforced concrete beam is welded to the column node core area connecting angle steel reinforcing steel plate 5 or the node core area connecting angle steel 4.
[0031] See also Figure 5 , Figure 8 The node core area connection steel 4 is arranged at the corner of the column section, and the beam-column overlapping area is provided with equal generation bolts 8 that penetrate the beam and are anchored and connected with the equal generation bolt anchor angle steel 9 on both sides of the reinforced concrete beam 2.
[0032] In summary, the utility model adopts longitudinal external angle steel, node core area connecting angle steel, node core area connecting angle steel reinforcement steel plate, reinforced angle steel hoop, transverse steel tie plate, equal generation bolts, equal generation bolt anchor angle steel, anchor bolts, etc. to reinforce the rectangular reinforced concrete column, which expands the scope of application of the rectangular reinforced concrete column external steel reinforcement method.
[0033] The above is only a preferred embodiment of the utility model, and is not any formal or substantial limitation of the utility model. It should be pointed out that ordinary technicians in this technical field can make some improvements and supplements without departing from the utility model, and these improvements and supplements should also be regarded as the protection scope of the utility model. Any technician familiar with this profession can make some changes, modifications and equivalent changes made by using the technical content disclosed above without departing from the spirit and scope of the utility model, which are all equivalent embodiments of the utility model; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the essential technology of the utility model are still within the scope of the technical solution of the utility model.
Claims
1. A rectangular reinforced concrete column reinforced structure with variable cross-section angle steel, characterized in that: The four edges of the non-beam-column connection area of the rectangular reinforced concrete column are all provided with longitudinal outer angle steels in the middle of the column, and the beam-column connection area is closely attached to the node core area connection angle steel along the column angle direction.
2. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 1, characterized in that: The longitudinal outer angle steels in the middle of the column are horizontally connected by transverse steel tie plates.
3. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 1, characterized in that: The length of the angle steel connecting the core area of the node is less than the length of the longitudinal outer angle steel in the middle of the column, a reinforcing steel plate is arranged on the outer side of the angle steel connecting the core area of the node, and the angle steel connecting the core area of the node and the reinforcing steel plate both penetrate the floor slab.
4. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 3, characterized in that: The reinforcing steel plate of the node core area connecting the angle steel extends outward from the top or bottom of the beam to the larger value of half the column section height or 500mm.
5. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 1, characterized in that: Reinforced angle steel hoops are arranged at the top and bottom of the reinforced concrete column to strengthen the connection transition area between the longitudinal outer angle steel in the middle of the column and the connecting angle steel in the core area of the node.
6. The rectangular reinforced concrete column reinforced structure wrapped with variable cross-section angle steel as claimed in claim 5, characterized in that: The reinforcing angle steel hoop is sleeved on the outer surface of the rectangular reinforced concrete column at the top or bottom of the beam and is fixedly connected to the reinforced concrete beam through anchor bolts.
7. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 5, characterized in that: In the reinforced concrete column, the non-beam side of the side column or corner column is reinforced with a steel plate, which is welded with a reinforced angle steel hoop to form a reinforced combined steel hoop.
8. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 1, characterized in that: In the reinforced concrete column, a double row of anchor bolts can be arranged on the side without beams to be fixedly connected with the reinforced concrete column.
9. The rectangular reinforced concrete column reinforced structure with variable cross-section angle steel as claimed in claim 1, characterized in that: The node core area of the beam-column overlapping area of the reinforced concrete column is provided with equal generation bolts penetrating the beam and being anchored and connected with the equal generation bolt anchor angle steel.
10. The rectangular reinforced concrete column reinforced structure wrapped with variable cross-section angle steel as claimed in claim 1, characterized in that: It should extend to the point where no reinforcement is required, and the extension distance can be the greater value of the column section height or 1000mm.