Steel-encased reinforced masonry stone column

Abstract

The utility model relates to a masonry stone column reinforced by encased steel. The masonry stone column comprises an original stone column, encased angle steel, batten plates, a bottom plate, embedded bolts and a bottom plate bearing platform, the four pieces of externally-wrapped angle steel are tightly attached to the original stone column; the four pieces of externally-wrapped angle steel are connected through batten plate welding. The bottom of the original stone column is wrapped by C30 concrete to form a bottom plate bearing platform, and four embedded bolts are embedded in the bottom plate bearing platform; the bottom plate is fixed on the bottom plate bearing platform through embedded bolts; and the bottom of the outer wrapping angle steel is welded with the bottom plate. The utility model has the most remarkable advantage that the steel-encased reinforced masonry stone columns are adopted, so that the overall shock resistance of the original structure can be improved, 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 stone column reinforced with external steel, belonging to the technical field of comprehensive reconstruction of old houses. Background Art

[0002] Since the compressive performance of masonry stone columns is good and the bearing capacity under the vertical load is easy to meet, some old masonry houses use stone columns as columns. These stone columns are damaged to varying degrees due to their age. For example, if the stone columns are partially cracked, partially crushed or damaged, the stone columns with serious damage should be replaced by brick columns or reinforced concrete columns when they are renovated. When the quality of the masonry stone columns is good, no serious damage is found and the bearing requirements are met, they should be seismically reinforced. However, since the stone columns themselves have poor bending resistance, the most suitable method for seismic reinforcement is to use external steel to reinforce them, constrain the deformation of the masonry stone columns, and improve the seismic resistance of the stone columns. The utility model uses external steel to carry out seismic reinforcement for masonry stone columns, which can improve the overall seismic resistance of the original structure, thereby enhancing the toughness of the house and preventing the collapse of the structure. The use of external steel to reinforce masonry stone columns has simple construction and reasonable structural force, and has good economic and environmental benefits. Utility Model Content

[0003] The utility model proposes a method of reinforcing masonry stone columns by using external steel, mainly to improve the overall earthquake resistance of the original structure, 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 stone column by using external steel, characterized in that it comprises an original stone column, an external angle steel, a tie plate, a bottom plate, embedded bolts, and a bottom plate pedestal; the number of the external angle steels is four and they are arranged close to the original stone column; the four external angle steels are connected by welding the tie plates; the tie plates are welded to the external angle steels in close contact with the original stone column; the bottom of the original stone column is wrapped with C30 concrete to form a bottom plate pedestal; the bottom plate pedestal is cast with concrete and has four embedded bolts embedded in it; the bottom plate is fixed to the bottom plate pedestal by embedded bolts; the bottom of the external angle steel is welded to the bottom plate.

[0006] Furthermore, the outer angle steel is an equilateral angle steel L60×6, and a layer of horizontal gusset plate is arranged every 250 mm in the height direction.

[0007] Furthermore, the thickness of the gusset plate is 10 mm, and the height of the cross section of the gusset plate is not less than 60 mm.

[0008] Furthermore, the bottom plate is a cold-rolled steel plate with a thickness of 10 mm.

[0009] Furthermore, the embedded bolts are M16 and have a length of not less than 300 mm.

[0010] Furthermore, the bolt mounting hole is a φ20 hole.

[0011] The above-mentioned method of reinforcing masonry stone columns with outer steel cladding and its construction method comprises the following steps:

[0012] Step 1: According to the design drawings, make the outer angle steel, gusset plate and bottom plate;

[0013] Step 2: According to the design drawings, make a concrete base slab at the bottom of the original stone column and embed four pre-embedded bolts;

[0014] Step 3: After the concrete reaches a certain strength, pass the embedded bolts through the bolt installation holes of the two bottom plates, and then fix the bottom plates on the bottom plate pedestal with nuts, and then weld the two bottom plates;

[0015] Step 4: Arrange the outer angle steels at the four corners of the original stone column, and use ropes to temporarily fix the outer angle steels close to the original stone column;

[0016] Step 5: Place the gusset plate close to the original stone column and weld it to the outer angle steel;

[0017] Step 6: After each layer of the original stone column is welded to the outer angle steel, the outer angle steel is welded to the bottom plate;

[0018] Step 7: Carry out rust-proof treatment on the outer angle steel, gusset plate, base plate and embedded bolts.

[0019] Beneficial effects:

[0020] The most significant advantage of this utility model is that the use of external steel to reinforce masonry stone columns can improve the overall earthquake resistance of the original structure, thereby enhancing the toughness of the house and preventing structural collapse. The use of external steel to reinforce masonry stone columns is simple in construction, reasonable in structural force, and has good economic and environmental benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of using external steel to reinforce masonry stone columns;

[0022] Figure 2 for Figure 1 AA cross-section diagram.

[0023] In the figure, 1: original stone column; 2: external angle steel; 3: gusset plate; 4: base plate; 5: weld; 6: embedded bolts; 7: bolt installation hole; 8: base plate pedestal. DETAILED DESCRIPTION

[0024] A type of masonry column reinforced with steel cladding, see Figures 1-2 As shown, it is characterized by: comprising an original stone column 1, an external angle steel 2, a gusset plate 3, a base plate 4, embedded bolts 6, and a base plate pedestal 8; the external angle steels 2 are four and arranged closely to the original stone column 1; the four external angle steels 2 are connected by welding through the gusset plates 3; the gusset plates 3 are welded to the external angle steels 2 closely to the original stone column 1; the bottom of the original stone column 1 is wrapped with C30 concrete to form a base plate 8; the base plate pedestal 8 is cast in concrete and four embedded bolts 6 are embedded in it; the base plate 4 is fixed to the base plate pedestal 8 through the embedded bolts 6 through the bolt mounting holes 7; the bottom of the external angle steel 2 is welded to the base plate 4.

[0025] Furthermore, the outer angle steel 2 is an equilateral angle steel L60×6, and a layer of horizontal gusset plate 3 is provided every 250 mm in the height direction.

[0026] Furthermore, the thickness of the fixing plate 3 is 10 mm, and the height of the cross section of the fixing plate 3 is not less than 60 mm.

[0027] Furthermore, the bottom plate 4 is a cold-rolled steel plate with a thickness of 10 mm.

[0028] Furthermore, the embedded bolt 6 is M16 and has a length of not less than 300 mm.

[0029] Furthermore, the bolt mounting hole 7 is a φ20 hole.

[0030] The above-mentioned method of reinforcing masonry stone columns with outer steel cladding and its construction method comprises the following steps:

[0031] Step 1: According to the design drawings, make the outer angle steel 2, the gusset plate 3, and the bottom plate 4;

[0032] Step 2: According to the design drawings, a concrete base plate pedestal 8 is made at the bottom of the original stone column 1, and four embedded bolts 6 are pre-embedded;

[0033] Step 3: After the concrete reaches a certain strength, pass the two bottom plates 4 through the bolt mounting holes 7 through the embedded bolts 6, and then use nuts to fix the bottom plates 4 on the bottom plate base 8, and then weld the two bottom plates 4;

[0034] Step 4: Arrange the outer angle steels 2 at the four corners of the original stone column 1, and temporarily fix the outer angle steels 2 close to the original stone column 1 with ropes;

[0035] Step 5: Place the gusset plate 3 close to the original stone column 1 and weld it to the outer angle steel 2;

[0036] Step 6: After each layer of the gusset plate 3 on the original stone column 1 is welded to the outer angle steel 2, the outer angle steel 2 is welded to the bottom plate 4;

[0037] Step seven: perform rust-proof treatment on the outer angle steel 2, the gusset plate 3, the bottom plate 4 and the embedded bolts 6.

[0038] 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 stone columns with external steel, characterized in that: The invention comprises an original stone column (1), an external angle steel (2), a gusset plate (3), a bottom plate (4), embedded bolts (6), and a bottom plate pedestal (8); the external angle steels (2) are four in number and arranged close to the original stone column (1); the four external angle steels (2) are connected by welding through the gusset plate (3); the gusset plate (3) is welded to the external angle steel (2) close to the original stone column (1); the bottom of the original stone column (1) is wrapped with C30 concrete to form a bottom plate pedestal (8); the bottom plate pedestal (8) is cast with concrete and embedded with four embedded bolts (6); the bottom plate (4) is fixed to the bottom plate pedestal (8) through the embedded bolts (6) through the bolt installation holes (7); the bottom of the external angle steel (2) is welded to the bottom plate (4).

2. The method of reinforcing a stone column by using external steel cladding according to claim 1, characterized in that: The outer angle steel (2) is an equilateral angle steel L60×6, and a layer of horizontal gusset plate (3) is arranged every 250 mm in the height direction.

3. The method of reinforcing a stone column by encasing steel as claimed in claim 1, characterized in that: The thickness of the gusset plate (3) is 10 mm, and the height of the cross section of the gusset plate (3) is not less than 60 mm.

4. The method of reinforcing a stone column by encasing steel as claimed in claim 1, characterized in that: The bottom plate (4) is a cold-rolled steel plate with a thickness of 10 mm.

5. The method of reinforcing a stone column by using external steel cladding according to claim 1, characterized in that: The embedded bolt (6) is M16 and has a length of not less than 300 mm.

6. The method of reinforcing a stone column by encasing steel as claimed in claim 1, characterized in that: The bolt mounting hole (7) is a φ20 hole.

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