Concrete column adopting newly-added steel frame to reinforce masonry structure

Abstract

The utility model relates to a masonry structure concrete column reinforced by a newly-added steel frame. The masonry structure concrete column comprises an original concrete column, a newly-added angle steel frame, angle steel cross braces, connecting steel plates, angle steel stiffening ribs and chemical anchor bolts, the newly-added angle steel frame, the original concrete column and the original wall body are respectively implanted into steel bar embedding holes of the original concrete column and the original wall body through chemical anchor bolts for fixation; two ends of the connecting steel plate are respectively welded on the newly-added angle steel frame; the two ends of the angle steel cross brace are respectively welded on the newly-added angle steel frame; the two ends of the angle steel stiffening rib are welded to the newly-added angle steel frame and the angle steel cross brace respectively. 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 steel 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 with a new steel frame in combination with the longitudinal wall. The utility model uses a new steel frame to carry out seismic reinforcement for masonry concrete columns, which can improve the overall seismic resistance of the original structure, so that the old and new structures can jointly bear the earthquake effect, thereby enhancing the toughness of the house and preventing the structure from collapsing. The use of a new steel frame to reinforce the masonry concrete columns has 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 new steel 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 method of reinforcing a masonry structure concrete column by using a newly added steel frame, characterized in that it comprises an original concrete column, a newly added angle steel frame, an angle steel cross brace, a connecting steel plate, an angle steel stiffening rib, and a chemical anchor bolt; the newly added angle steel frame is respectively arranged on both sides of the original concrete column; the newly added angle steel frame is respectively connected to the original concrete column and the original wall, and is respectively implanted into the rebar holes of the original concrete column and the original wall through chemical anchor bolts passing through the steel frame mounting holes for fixation, and the newly added angle steel frames on both sides of the original concrete column are welded by connecting steel plates; the newly added angle steel frames are all welded by angle steels; the angle steels can be either unequal angle steels or equal angle steels; the two ends of the connecting steel plate are respectively welded to the newly added angle steel frame; the two ends of the angle steel cross brace are respectively welded to the newly added angle steel frame; the two ends of the angle steel stiffening rib are respectively welded to the newly added angle steel frame and the angle steel cross brace.

[0006] Furthermore, the connecting steel plates are cold-rolled steel plates with a thickness of 8 mm and a width of 30 mm, and are arranged at intervals of 300 mm.

[0007] Furthermore, the unequal angle steel is L63×40×6, and the equal angle steel is L63×6.

[0008] Furthermore, the steel frame mounting hole is a φ14 hole.

[0009] Furthermore, the chemical anchor is M10 and has a length of not less than 80 mm.

[0010] Furthermore, the reinforcing bar holes of the original concrete columns and the original walls are φ14 holes with a depth of not less than 80 mm.

[0011] Furthermore, the angle steel model used in the angle steel cross brace is the same as the angle steel model of the newly added angle steel frame.

[0012] Furthermore, the angle steel model used for the angle steel stiffening rib is the same as the angle steel model of the newly added angle steel frame.

[0013] The above-mentioned method of reinforcing a masonry structure concrete column by adding a steel frame and a construction method thereof adopts the following steps:

[0014] Step 1: According to the design drawings, make a new angle steel frame, and weld the angle steel cross brace and angle steel stiffening ribs to the new angle steel frame respectively;

[0015] Step 2: Install the newly added angle steel frame at the window, and use chemical anchor bolts to pass through the steel frame installation holes and implant them into the original concrete columns and the original wall reinforcement holes for fixed connection;

[0016] Step 3: Weld the two ends of the connecting steel plate to the newly added angle steel frame respectively;

[0017] Step 4: Carry out rust-proof treatment on the exposed parts of the newly added angle steel frame, connecting steel plates, angle steel cross braces, angle steel stiffening ribs, and chemical anchor bolts.

[0018] Beneficial effects:

[0019] The most significant advantage of this utility model is that the use of a new steel frame to reinforce the masonry structure concrete column can 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. The method of using a new steel 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 1 This is a schematic diagram of the newly added steel frame reinforced masonry concrete column;

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

[0022] In the figure, 1: original concrete column; 2: newly added angle steel frame; 3: angle steel cross brace; 4: connecting steel plate; 5: steel frame mounting hole; 6: original wall; 7: chemical anchor bolt; 8: angle steel stiffening rib; 9: anchor hole; 10: external window. DETAILED DESCRIPTION

[0023] A method of reinforcing masonry concrete columns with a new steel frame, see Figures 1-2 As shown, it is characterized in that: it includes an original concrete column 1, a newly added angle steel frame 2, an angle steel cross brace 3, a connecting steel plate 4, an angle steel stiffening rib 8, and a chemical anchor bolt 7; the newly added angle steel frame 2 is respectively arranged on both sides of the original concrete column 1; the newly added angle steel frame 2 is respectively connected to the original concrete column 1 and the original wall 6, and is respectively implanted into the anchor holes 9 of the original concrete column 1 and the original wall 6 through the chemical anchor bolt 7 through the steel frame mounting hole 5 for fixation, and at the same time, the newly added angle steel frame 2 on both sides of the original concrete column 1 is welded by the connecting steel plate 4; the newly added angle steel frame 2 is entirely welded by angle steels; the angle steels can be unequal angle steels or equal angle steels; the two ends of the connecting steel plate 4 are respectively welded to the newly added angle steel frame 2; the two ends of the angle steel cross brace 3 are respectively welded to the newly added angle steel frame 2; the two ends of the angle steel stiffening rib 8 are respectively welded to the newly added angle steel frame 2 and the angle steel cross brace 3.

[0024] Furthermore, the connecting steel plates 4 are cold-rolled steel plates with a thickness of 8 mm and a width of 30 mm, and are arranged at intervals of 300 mm.

[0025] Furthermore, the unequal angle steel is L63×40×6, and the equal angle steel is L63×6.

[0026] Furthermore, the steel frame mounting hole 5 is a φ14 hole.

[0027] Furthermore, the chemical anchor bolt 7 is M10 and has a length of not less than 80 mm.

[0028] Furthermore, the reinforcing bar holes 9 of the original concrete column 1 and the original wall 6 are φ14 holes with a depth of not less than 80 mm.

[0029] Furthermore, the angle steel model used in the angle steel cross brace 3 is the same as the angle steel model of the newly added angle steel frame 2 .

[0030] Furthermore, the angle steel model used for the angle steel stiffening rib 8 is the same as the angle steel model of the newly added angle steel frame 2 .

[0031] The above-mentioned method of reinforcing a masonry structure concrete column by adding a steel frame and a construction method thereof adopts the following steps:

[0032] Step 1: According to the design drawings, a new angle steel frame 2 is manufactured, and the angle steel cross brace 3 and the angle steel stiffening rib 8 are respectively welded to the new angle steel frame 2;

[0033] Step 2: Install the newly added angle steel frame 2 at the window, and use chemical anchor bolts 7 to pass through the steel frame installation holes 5 and implant into the original concrete column 1 and the original wall 6 reinforcement holes 9 for fixed connection;

[0034] Step 3: Weld the two ends of the connecting steel plate 4 to the newly added angle steel frame 2 respectively;

[0035] Step 4: Perform anti-rust treatment on the exposed parts of the newly added angle steel frame 2, the connecting steel plate 4, the angle steel cross brace 3, the angle steel stiffening rib 8, and the chemical anchor bolt 7.

[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 of reinforcing a masonry structure concrete column by adding a steel frame, characterized in that: The invention comprises an original concrete column (1), a newly added angle steel frame (2), an angle steel cross brace (3), a connecting steel plate (4), an angle steel stiffening rib (8), and a chemical anchor bolt (7); the newly added angle steel frame (2) is arranged on both sides of the original concrete column (1); the newly added angle steel frame (2) is connected to the original concrete column (1) and the original wall (6) respectively, and the chemical anchor bolt (7) passes through the steel frame installation hole (5) and is respectively implanted into the reinforcing bar hole (9) of the original concrete column (1) and the original wall (6) for fixing. At the same time, a connecting steel plate (4) is used to weld the newly added angle steel frames (2) on both sides of the original concrete column (1); the newly added angle steel frames (2) are all welded by angle steels; the angle steels can be unequal angle steels or equal angle steels; the two ends of the connecting steel plate (4) are respectively welded to the newly added angle steel frames (2); the two ends of the angle steel cross brace (3) are respectively welded to the newly added angle steel frames (2); the two ends of the angle steel stiffening ribs (8) are respectively welded to the newly added angle steel frames (2) and the angle steel cross brace (3).

2. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The connecting steel plates (4) are cold-rolled steel plates with a thickness of 8 mm and a width of 30 mm, and are arranged at intervals of 300 mm.

3. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The unequal angle steel is L63×40×6, and the equal angle steel is L63×6.

4. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The steel frame mounting hole (5) is a φ14 hole.

5. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The chemical anchor bolt (7) is M10 and has a length of not less than 80 mm.

6. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The reinforcing bar holes (9) of the original concrete column (1) and the original wall (6) are φ14 holes with a depth of not less than 80 mm.

7. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The angle steel model used in the angle steel cross brace (3) is the same as the angle steel model of the newly added angle steel frame (2).

8. The method of reinforcing a masonry structure concrete column by adding a steel frame according to claim 1, characterized in that: The angle steel model used by the angle steel stiffening rib (8) is the same as the angle steel model of the newly added angle steel frame (2).

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