Fiber web positioning and reinforcing method for concrete-filled steel tubular column

Abstract

The invention provides a fiber web positioning and reinforcing method for a concrete-filled steel tubular column, and relates to the technical field of concrete-filled steel tubular columns. The fiber net positioning and reinforcing method for the concrete filled steel tubular column comprises the following specific steps that S1, firstly, a steel tube shell is vertically and fixedly installed at the construction position, and then a fiber net and a prefabricated stone column are sequentially hoisted into the steel tube shell through a crane; and S2, then a first inserting plate is inserted into a first inserting groove, a second inserting plate is inserted into a second inserting groove, and at the moment, the fiber net and the prefabricated stone column are positioned and fixed under the action of a first positioning assembly and a second positioning assembly. The multiple first positioning assemblies are arranged on the steel pipe shell, and the multiple second positioning assemblies are arranged on the prefabricated stone column, so that the position of the internal fiber net can be fixed, the fiber net is limited and supported, and the situation that the position of the fiber net is changed in the concrete injection process is effectively avoided.

Description

Technical Field

[0001] The invention relates to the technical field of steel tube concrete columns, in particular to a fiber mesh positioning and reinforcement method for steel tube concrete columns. Background Art

[0002] In the steel tube concrete column, the restraining effect of the steel tube on the concrete inside it puts the concrete in a three-dimensional compression state, thereby improving the compressive strength of the concrete; the concrete inside the steel tube can effectively prevent the local buckling of the steel tube. The main effects of adding fibers inside the steel tube concrete column include enhancing mechanical properties, improving bearing capacity and ductility.

[0003] When applying for the present invention, the applicant searched and found that a Chinese patent disclosed "a fiber-reinforced steel tube concrete column structure and its construction method", and its application number is "CN202410616471.9". This patent mainly achieves the goal of enhancing the mechanical properties, improving the bearing capacity and ductility of the steel tube concrete column during use by arranging a fiber mesh inside, but lacks a supporting and fixing structure for the fiber mesh. During the process of injecting concrete, the fiber mesh is easily deformed by the squeezing of the concrete, which leads to uneven distribution of the fiber mesh inside the steel tube. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] In view of the shortcomings of the prior art, the present invention provides a method for positioning and reinforcing a fiber mesh of a steel tube concrete column, which solves the problem in the prior art of lacking a supporting and fixing structure for the fiber mesh. During the process of injecting concrete, the fiber mesh is easily deformed due to the squeezing of the concrete, which leads to the problem of uneven distribution of the fiber mesh inside the steel tube.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: A fiber mesh positioning and reinforcement method for a steel tube concrete column, comprising the following specific steps:

[0008] S1. First, the steel pipe shell is fixed vertically at the construction location, and then the fiber mesh and prefabricated stone columns are hoisted into the steel pipe shell in sequence using a crane;

[0009] S2, then inserting the first plug plate into the first slot and inserting the second plug plate into the second slot, at which time the fiber mesh and the prefabricated stone column are positioned and fixed under the action of the first positioning component and the second positioning component;

[0010] S3, finally injecting concrete slurry into the steel pipe shell until the concrete slurry is completely solidified;

[0011] The first positioning assembly comprises a threaded sleeve, a threaded block, a push rod, an arc plate, a fixed plate, an active cavity, a limit plate, a limit block and a scale mark, the threaded sleeve is rotatably connected to the side wall of the first plug plate, the threaded block is threadedly connected to the inside of the threaded sleeve, the push rod is fixedly connected to the threaded block, the arc plate is fixedly connected to one end of the push rod located outside the threaded sleeve, the fixed plate is fixedly connected to the side wall of the first plug plate, and the fixed plate is located above the threaded sleeve, the active cavity is arranged inside the fixed plate, the limit block is slidably connected to the inside of the active cavity, the limit plate is fixedly connected to the side wall of the limit block, and one end of the limit plate located outside the active cavity is fixedly connected to the arc plate, and the scale mark is arranged on the top of the limit plate;

[0012] The second positioning component has the same structure as the first positioning component, and the second positioning component is arranged correspondingly to the first positioning component.

[0013] Preferably, the number of the first slots and the number of the first plug plates are both four, and the first slots are evenly distributed on the inner wall of the steel tube shell.

[0014] Preferably, the number of the second slots and the number of the second plug plates are both four, and the second slots are evenly distributed on the outer wall of the prefabricated stone column.

[0015] Preferably, each of the first plug boards is provided with a plurality of first positioning components, and each of the second plug boards is provided with a plurality of second positioning components.

[0016] Preferably, the threaded sleeve is the same length as the fixing plate, and the push rod is the same length as the limiting plate.

[0017] Preferably, the preparation steps of the prefabricated stone column include the following specific steps: first, a rolled steel bar structure is used, and the top view shape of the steel bar structure is circular, the rolled steel bar structure is installed in a corresponding mold, and then concrete slurry is injected into the interior of the mold, and demolding can be achieved after the concrete slurry is completely solidified, thereby completing the preparation of the prefabricated stone column.

[0018] Preferably, the mold used in the preparation process of the prefabricated stone column is two detachable molds assembled together for use.

[0019] (III) Beneficial effects

[0020] The present invention provides a fiber mesh positioning and reinforcement method for a steel tube concrete column. It has the following beneficial effects:

[0021] 1. The present invention can fix the position of the internal fiber mesh and provide limited support for the fiber mesh by arranging multiple first positioning components on the steel pipe shell and multiple second positioning components on the prefabricated stone column, thereby effectively preventing the position of the fiber mesh from changing during the concrete injection process.

[0022] 2. In the present invention, the arrangement of the first positioning component and the second positioning component can not only limit the position of the limiting net, but also limit the prefabricated stone column in the middle. In addition, the first positioning component and the second positioning component can be flexibly adjusted and are easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is the overall structural diagram of the steel tube concrete column;

[0024] Figure 2 It is the top view of the steel tube concrete column;

[0025] Figure 3 This is the front cross-sectional view of the steel tube concrete column;

[0026] Figure 4 for Figure 2 Schematic diagram of the structure of A;

[0027] Figure 5 for Figure 3 Schematic diagram of the structure of middle B;

[0028] Figure 6 This is a front sectional view of the first positioning component.

[0029] Among them, 1. steel pipe shell; 2. fiber mesh; 3. prefabricated stone column; 4. first slot; 5. second slot; 6. first plug plate; 7. second plug plate; 8. first positioning assembly; 9. second positioning assembly; 801. threaded sleeve; 802. threaded block; 803. push rod; 804. arc plate; 805. fixed plate; 806. movable cavity; 807. limit plate; 808. limit block; 809. scale mark. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Example:

[0032] like Figure 1-6As shown, an embodiment of the present invention provides a fiber mesh positioning and reinforcement method for a steel tube concrete column, comprising the following specific steps:

[0033] S1. First, the steel pipe shell 1 is vertically fixed and installed at the construction location, and then the fiber mesh 2 and the prefabricated stone column 3 are hoisted in the steel pipe shell 1 in sequence using a crane. The fiber mesh 2 used here belongs to the prior art (application number CN202410616471.9), which will not be repeated here;

[0034] S2, then insert the first plug plate 6 into the first slot 4, and insert the second plug plate 7 into the second slot 5. At this time, the fiber mesh 2 and the prefabricated stone column 3 are positioned and fixed under the action of the first positioning component 8 and the second positioning component 9, wherein the first slot 4 is mainly used to fix the position of the first plug plate 6 to prevent the first plug plate 6 from driving the first positioning component 8 to rotate, and the second slot 5 is mainly used to fix the position of the second plug plate 7 to prevent the second plug plate 7 from driving the second positioning component 9 to rotate;

[0035] S3, finally injecting concrete slurry into the interior of the steel pipe shell 1, and the concrete slurry is completely solidified;

[0036] The first positioning assembly 8 includes a threaded sleeve 801, a threaded block 802, a push rod 803, an arc plate 804, a fixed plate 805, an active cavity 806, a limit plate 807, a limit block 808 and a scale mark 809, wherein the fixed plate 805 and the limit plate 807 are mainly used to limit the arc plate 804 to prevent the arc plate 804 from rotating, the limit block 808 is used to prevent the limit plate 807 from falling off from the inside of the active cavity 806, and the scale mark 809 is used to facilitate understanding of the adjustment distance of the arc plate 804;

[0037] The threaded sleeve 801 is rotatably connected to the side wall of the first plugboard 6, the threaded block 802 is threadedly connected to the inside of the threaded sleeve 801, the push rod 803 is fixedly connected to the threaded block 802, the arc plate 804 is fixedly connected to one end of the push rod 803 located outside the threaded sleeve 801, the fixed plate 805 is fixedly connected to the side wall of the first plugboard 6, and the fixed plate 805 is located above the threaded sleeve 801, the movable cavity 806 is arranged inside the fixed plate 805, the limit block 808 is slidably connected to the inside of the movable cavity 806, the limit plate 807 is fixedly connected to the side wall of the limit block 808, and one end of the limit plate 807 located outside the movable cavity 806 is fixedly connected to the arc plate 804, and the scale mark 809 is arranged on the top of the limit plate 807;

[0038] The working principle of the first positioning assembly 8: before use, the staff first uses a measuring tool to measure the distance between the fiber mesh 2 and the steel pipe shell 1, and then rotates the threaded sleeve 801. At this time, the threaded block 802 moves inside the threaded sleeve 801, thereby driving the push rod 803 and the arc plate 804 to move. While rotating the threaded sleeve 801, the scale mark 809 on the limit plate 807 is observed to judge the moving distance of the arc plate 804, so that the arc plate 804 can fit with the fiber mesh 2 in the subsequent installation process;

[0039] The second positioning assembly 9 has the same structure as the first positioning assembly 8 , and the second positioning assembly 9 is arranged corresponding to the first positioning assembly 8 . The use principle of the second positioning assembly 9 is the same as that of the first positioning assembly 8 .

[0040] There are four first slots 4 and four first plug plates 6, and the first slots 4 are evenly distributed on the inner wall of the steel pipe shell 1. There are four second slots 5 and four second plug plates 7, and the second slots 5 are evenly distributed on the outer wall of the prefabricated stone column 3. Each first plug plate 6 is provided with a plurality of first positioning components 8, and each second plug plate 7 is provided with a plurality of second positioning components 9. The threaded sleeve 801 has the same length as the fixed plate 805, and the top rod 803 has the same length as the limit plate 807.

[0041] The preparation steps of the prefabricated stone column 3 include the following specific steps: first, a rolled steel bar frame is used, and the top view shape of the steel bar frame is circular. The rolled steel bar frame is installed in a corresponding mold, and then concrete slurry is injected into the mold. After the concrete slurry is completely solidified, demolding can be achieved, thereby completing the preparation of the prefabricated stone column 3. The mold used in the preparation process of the prefabricated stone column 3 is two detachable molds assembled together.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fiber mesh positioning and reinforcement method for a steel tube concrete column, characterized in that: The method comprises the following specific steps: S1, firstly vertically fixing the steel pipe shell (1) at the construction location, and then using a crane to sequentially hoist the fiber mesh (2) and the prefabricated stone column (3) inside the steel pipe shell (1); S2, then inserting the first plug plate (6) into the first slot (4), and inserting the second plug plate (7) into the second slot (5), at which time the fiber mesh (2) and the prefabricated stone column (3) are positioned and fixed under the action of the first positioning component (8) and the second positioning component (9); S3, finally, concrete slurry is injected into the interior of the steel pipe shell (1), and the concrete slurry is completely solidified; the first positioning assembly (8) includes a threaded sleeve (801), a threaded block (802), a push rod (803), an arc plate (804), a fixed plate (805), a movable cavity (806), a limit plate (807), a limit block (808) and a scale mark (809), the threaded sleeve (801) is rotatably connected to the side wall of the first plug plate (6), the threaded block (802) is threadedly connected to the interior of the threaded sleeve (801), the push rod (803) is fixedly connected to the threaded block (802), and the arc plate (804) is fixedly The fixing plate (805) is fixedly connected to the side wall of the first plug plate (6), and the fixing plate (805) is located above the threaded sleeve (801). The movable cavity (806) is arranged inside the fixing plate (805). The limit block (808) is slidably connected inside the movable cavity (806). The limit plate (807) is fixedly connected to the side wall of the limit block (808), and the end of the limit plate (807) located outside the movable cavity (806) is fixedly connected to the arc plate (804). The scale mark (809) is arranged on the top of the limit plate (807); The second positioning component (9) has the same structure as the first positioning component (8), and the second positioning component (9) is arranged correspondingly to the first positioning component (8).

2. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 1, characterized in that: The number of the first slots (4) and the number of the first plug plates (6) are both four, and the first slots (4) are evenly distributed on the inner wall of the steel tube housing (1).

3. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 1, characterized in that: The number of the second slots (5) and the number of the second plug plates (7) are both four, and the second slots (5) are evenly distributed on the outer wall of the prefabricated stone column (3).

4. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 1, characterized in that: Each of the first plug boards (6) is provided with a plurality of first positioning components (8), and each of the second plug boards (7) is provided with a plurality of second positioning components (9).

5. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 1, characterized in that: The threaded sleeve (801) and the fixing plate (805) have the same length, and the push rod (803) and the limiting plate (807) have the same length.

6. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 1, characterized in that: The preparation steps of the prefabricated stone column (3) include the following specific steps: first, a rolled steel bar frame is used, and the top view shape of the steel bar frame is circular, and the rolled steel bar frame is installed in a corresponding mold, and then concrete slurry is injected into the interior of the mold, and demoulding can be achieved after the concrete slurry is completely solidified, thereby completing the preparation of the prefabricated stone column (3).

7. The fiber mesh positioning and reinforcement method for a steel tube concrete column according to claim 6, characterized in that: The mold used in the preparation process of the prefabricated stone column (3) is two detachable molds assembled together for use.

Images