Concrete column adopting newly added reinforced concrete frame to reinforce masonry structure

Abstract

The utility model relates to a masonry structure concrete column reinforced by adopting a newly-added reinforced concrete frame. The masonry structure concrete column reinforced by adopting the newly-added reinforced concrete frame comprises an original concrete column, a newly-added reinforced concrete window frame, a newly-added reinforced concrete door frame, U-shaped steel tie bars, stirrups and longitudinal steel bars, the newly-added reinforced concrete window frame and the door frame are formed by pouring stirrups and longitudinal steel bars. The U-shaped steel tie bars are embedded into the original concrete column through the bar embedding holes; after the stirrups, the longitudinal steel bars and the U-shaped steel tie bars are all bound and connected, the supporting formwork is integrally poured. The anti-seismic structure has the most remarkable advantages that the overall anti-seismic capacity of an original structure can be improved, and new and old structures jointly bear the earthquake action, so that the toughness of a house is enhanced, and the structure is prevented from collapsing.

Description

Technical Field

[0001] The utility model relates to a masonry structure concrete column reinforced by a newly added reinforced concrete frame, belonging to the technical field of comprehensive reconstruction of old houses. Background Art

[0002] At present, there are still many old masonry houses that use concrete columns for their columns. These concrete columns will be damaged to varying degrees due to their age. When the quality of the concrete columns is good, no damage such as cracking, powdering, tilting, etc. is found, and the bearing requirements are met, the concrete columns should be reinforced by adding reinforced concrete frames in combination with the longitudinal walls. The utility model uses a new reinforced concrete frame to carry out seismic reinforcement for masonry concrete columns, which can improve the overall seismic resistance of the original structure, so that the new and old structures can jointly bear the earthquake effect, thereby enhancing the toughness of the house and preventing the structure from collapsing. The method of reinforcing masonry concrete columns with a new reinforced concrete frame has the advantages of simple construction, reasonable structural force, and good economic and environmental benefits. Utility Model Content

[0003] The utility model proposes a method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame, mainly to improve the overall earthquake resistance of the original structure, so that the new and old structures can jointly bear the earthquake effect, thereby enhancing the toughness of the house and preventing the structure from collapsing.

[0004] The technical solution of the utility model is as follows:

[0005] A reinforced concrete frame is used to reinforce a masonry structure concrete column, characterized in that it includes an original concrete column, a newly added reinforced concrete window frame, a newly added reinforced concrete door frame, U-shaped tie steel bars, stirrups, and longitudinal steel bars; the newly added reinforced concrete window frame is arranged on both sides of the original concrete column to wrap the original concrete column; the cross-sectional width of the newly added reinforced concrete window frame is 120 mm, and the cross-sectional thickness is the same as the diameter of the original concrete column; the newly added reinforced concrete window frame is cast by stirrups and no less than four longitudinal steel bars; the newly added reinforced concrete window frame is connected to the original concrete column by U-shaped tie steel bars; the U-shaped tie steel bars are implanted into the original concrete column through the bar planting hole; the original concrete column is wrapped between the newly added reinforced concrete door frame and the newly added reinforced concrete window frame; the newly added reinforced concrete door frame is cast by stirrups and no less than eight longitudinal steel bars; the cross-sectional width of the newly added reinforced concrete door frame is not less than 240 mm, and the cross-sectional thickness is the same as the diameter of the original concrete column; after the stirrups, longitudinal steel bars, and U-shaped tie steel bars in the newly added reinforced concrete window frame and the newly added reinforced concrete door frame are all tied and connected, the supporting formwork is cast as a whole.

[0006] Furthermore, the U-shaped tie steel bar is a HPB300 grade hot-rolled steel bar with a diameter of φ12 steel bar, arranged at an interval of 250 mm, and implanted into the original concrete column to a depth of not less than 100 mm.

[0007] Furthermore, the stirrups are HPB300 steel bars with a diameter of φ10 and are arranged at intervals of 250 mm.

[0008] Furthermore, the longitudinal steel bars are HRB400 steel bars with a diameter of φ12.

[0009] Furthermore, the reinforcement holes on the original concrete columns are φ16 holes.

[0010] Furthermore, the U-shaped tie steel bar is connected by binding with the longitudinal steel bars in the newly added reinforced concrete window frame; the U-shaped tie steel bar is connected by binding with the longitudinal steel bars in the newly added reinforced concrete door frame.

[0011] Furthermore, the strength grade of the reinforced concrete is C30.

[0012] The above-mentioned method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame and a construction method thereof adopts the following steps:

[0013] Step 1: Make U-shaped tie bars, stirrups and longitudinal steel bars;

[0014] Step 2: According to the design drawings, drill holes for planting reinforcement on both sides of the original concrete column, implant U-shaped tie bars, and then tie stirrups and longitudinal reinforcements respectively; also tie stirrups and longitudinal reinforcements in the newly added reinforced concrete door frame;

[0015] Step 3: After all the stirrups, longitudinal reinforcements, and U-shaped tie reinforcements in the newly added reinforced concrete window frames and newly added reinforced concrete door frames are tied, formwork support is carried out;

[0016] Step 4: pouring the whole concrete;

[0017] Step 5: After the concrete reaches a certain strength, plaster and level the wall.

[0018] Beneficial effects:

[0019] The most significant advantage of this utility model is that the use of a newly added reinforced concrete frame to reinforce the masonry structure concrete column can improve the overall earthquake resistance of the original structure, allowing the new and old structures to jointly bear the earthquake effect, thereby enhancing the toughness of the house and preventing the structure from collapsing. The use of a newly added reinforced concrete frame to reinforce the masonry structure concrete column is simple to construct, the structure is reasonably stressed, and has good economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1Schematic diagram of adding reinforced concrete frame to reinforce concrete columns;

[0021] Figure 2 for Figure 1 AA cross-section diagram.

[0022] In the figure, 1: original concrete column; 2: U-shaped tie steel bar; 3: newly added reinforced concrete window frame; 4: newly added reinforced concrete door frame; 5: window opening; 6: door opening; 7: longitudinal steel bar; 8: stirrups; 9: original brick wall; 10: rebar hole. DETAILED DESCRIPTION

[0023] A method of reinforcing masonry concrete columns by adding reinforced concrete frames, see Figures 1-2 As shown, it is characterized by: comprising an original concrete column 1, a newly added reinforced concrete window frame 3, a newly added reinforced concrete door frame 4, a U-shaped tie steel bar 2, stirrups 8, and longitudinal steel bars 7; the newly added reinforced concrete window frame 3 is arranged on both sides of the original concrete column 1 to wrap the original concrete column 1; the cross-sectional width of the newly added reinforced concrete window frame 3 is 120 mm, and the cross-sectional thickness is the same as the diameter of the original concrete column 1; the newly added reinforced concrete window frame 3 is cast by stirrups 8 and no less than four longitudinal steel bars 7; the newly added reinforced concrete window frame 3 is connected to the original concrete column 1 by a U-shaped tie steel bar 2; The U-shaped tie steel bar 2 is implanted into the original concrete column 1 through the anchor hole 10; the original concrete column 1 is wrapped between the newly added reinforced concrete door frame 4 and the newly added reinforced concrete window frame 3; the newly added reinforced concrete door frame 4 is cast by stirrups 8 and no less than eight longitudinal steel bars 7; the cross-sectional width of the newly added reinforced concrete door frame 4 is not less than 240 mm, and the cross-sectional thickness is the same as the diameter of the original concrete column 1; after the stirrups 8, longitudinal steel bars 7 and U-shaped tie steel bars 2 in the newly added reinforced concrete window frame 3 and the newly added reinforced concrete door frame 4 are all tied and connected, the support formwork is cast as a whole.

[0024] Furthermore, the U-shaped tie steel bar 2 is a HPB300 grade hot-rolled steel bar with a diameter of φ12 steel bar, arranged at an interval of 250 mm, and implanted into the original concrete column 1 to a depth of not less than 100 mm.

[0025] Furthermore, the stirrups 8 are HPB300 steel bars with a diameter of φ10 and are arranged at intervals of 250 mm.

[0026] Furthermore, the longitudinal steel bar 7 is HRB400 with a diameter of φ12 steel bar.

[0027] Furthermore, the reinforcing bar embedding hole 10 on the original concrete column 1 is a φ16 hole.

[0028] Furthermore, the U-shaped tie steel bar 2 is tied and connected to the longitudinal steel bars 7 in the newly added reinforced concrete window frame 3; the U-shaped tie steel bar 2 is tied and connected to the longitudinal steel bars 7 of the newly added reinforced concrete door frame 4.

[0029] Furthermore, the strength grade of the reinforced concrete is C30.

[0030] The above-mentioned method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame and a construction method thereof adopts the following steps:

[0031] Step 1: Make U-shaped tie bars 2, stirrups 8 and longitudinal bars 7;

[0032] Step 2: According to the design drawings, drill the reinforcing steel holes 10 on both sides of the original concrete column 1, implant the U-shaped tie steel bars 2, and then tie the stirrups 8 and the longitudinal steel bars 7 respectively; at the same time, tie the stirrups 8 and the longitudinal steel bars 7 in the newly added reinforced concrete door frame 4;

[0033] Step 3: After the stirrups 8, longitudinal steel bars 7, and U-shaped tie bars 2 in the newly added reinforced concrete window frame 3 and the newly added reinforced concrete door frame 4 are all tied, formwork support is performed;

[0034] Step 4: pouring the whole concrete;

[0035] Step 5: After the concrete reaches a certain strength, plaster and level the wall.

[0036] The above is a typical implementation of the present invention, and the specific implementation of the present invention is not limited thereto.

Claims

1. A method for reinforcing a masonry structure concrete column by adding a reinforced concrete frame, characterized in that: The invention comprises an original concrete column (1), a newly added reinforced concrete window frame (3), a newly added reinforced concrete door frame (4), a U-shaped tie steel bar (2), stirrups (8), and longitudinal steel bars (7); the newly added reinforced concrete window frame (3) is arranged on both sides of the original concrete column (1) to wrap the original concrete column (1); the newly added reinforced concrete window frame (3) has a cross-sectional width of 120 mm and a cross-sectional thickness that is the same as the diameter of the original concrete column (1); the newly added reinforced concrete window frame (3) is cast by stirrups (8) and no less than four longitudinal steel bars (7); the newly added reinforced concrete window frame (3) is connected to the original concrete column (1) by a U-shaped tie steel bar (2); the U-shaped The tie bars (2) are implanted into the original concrete column (1) through the implantation holes (10); the original concrete column (1) is wrapped between the newly added reinforced concrete door frame (4) and the newly added reinforced concrete window frame (3); the newly added reinforced concrete door frame (4) is cast by stirrups (8) and no less than eight longitudinal steel bars (7); the cross-sectional width of the newly added reinforced concrete door frame (4) is no less than 240 mm, and the cross-sectional thickness is the same as the diameter of the original concrete column (1); after the stirrups (8), longitudinal steel bars (7), and U-shaped tie bars (2) in the newly added reinforced concrete window frame (3) and the newly added reinforced concrete door frame (4) are all tied and connected, the supporting formwork is cast as a whole.

2. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The U-shaped tie steel bars (2) are HPB300 grade hot-rolled steel bars with a diameter of φ12 steel bars, arranged at intervals of 250 mm, and implanted into the original concrete column (1) to a depth of not less than 100 mm.

3. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The stirrups (8) are HPB300 steel bars with a diameter of φ10 and are arranged at intervals of 250 mm.

4. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The longitudinal steel bar (7) is HRB400 with a diameter of φ12.

5. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The reinforcing bar embedding holes (10) on the original concrete column (1) are φ16 holes.

6. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The U-shaped tie steel bar (2) is tied and connected to the longitudinal steel bar (7) in the newly added reinforced concrete window frame (3); the U-shaped tie steel bar (2) is tied and connected to the longitudinal steel bar (7) in the newly added reinforced concrete door frame (4).

7. The method of reinforcing a masonry structure concrete column by adding a reinforced concrete frame according to claim 1, characterized in that: The strength grade of the reinforced concrete is C30.

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