High and large support stand column bottom anchoring foundation structure

Abstract

The utility model discloses a high and large support stand column bottom anchoring foundation structure which comprises a concrete foundation and an embedded steel plate, a reinforcing mesh is embedded in the concrete foundation, the embedded steel plate is embedded at the top of the concrete foundation, the embedded steel plate is a square steel plate, four steel channels are vertically welded to the bottom of the embedded steel plate, and the steel channels are connected with the concrete foundation in a welded mode. The four steel channels are symmetrically arranged with the embedded steel plate as the center, the bottom ends of the four steel channels extend into the lower portion of the concrete foundation, the top of the embedded steel plate is flush with the top face of the concrete foundation, and multiple layers of steel bar barbs are arranged on the four steel channels respectively. The high and large support stand column bottom anchoring foundation structure can increase the anchoring force of the stand column and the foundation, and the whole structure is firmer.

Description

Technical Field

[0001] The utility model relates to the technical field of support foundations, in particular to a bottom anchoring foundation structure of a tall support column. Background Art

[0002] The construction of steel box girder bridges mostly adopts the segmented hoisting method. Through reasonable longitudinal and transverse segmentation, the steel is manufactured in segments at the steel plant, then transported to the project site by transportation equipment, and then hoisted to the temporary support segment by segment to assemble into a whole. Due to the heavy weight of the steel box girder segment, when constructing the temporary steel pier, the site foundation conditions are high. Reinforced concrete structure is often used as the support foundation, and then a steel plate is embedded on the top of the reinforced concrete to connect with the support column.

[0003] Application research has found that if the steel plate is directly embedded in the top of the reinforced concrete or the steel plate is welded and then embedded, it is easy to cause the steel plate to separate from the reinforced concrete structure during construction, resulting in a loose connection between the bracket and the foundation, which poses a safety hazard to construction. Therefore, it is necessary to design a high bracket column bottom anchor foundation structure that can increase the anchoring force between the column and the foundation and make the overall structure more solid. Summary of the invention

[0004] The utility model aims to provide a bottom anchoring foundation structure of a tall support column, which can increase the anchoring force between the column and the foundation, making the overall structure more solid.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted is:

[0006] A bottom anchoring foundation structure of a tall support column comprises a concrete foundation and an embedded steel plate, wherein a steel mesh is embedded in the concrete foundation, and the embedded steel plate is embedded in the top of the concrete foundation. The embedded steel plate is a square steel plate, and four channel steels are vertically welded to the bottom of the embedded steel plate. The four channel steels are symmetrically arranged with the center of the embedded steel plate, and the bottom ends of the four channel steels extend into the lower part of the concrete foundation. The top of the embedded steel plate is flush with the top surface of the concrete foundation, and multiple layers of steel bar barbs are respectively arranged on the four channel steels. The number of layers of the steel bar barbs is determined according to the thickness of the concrete foundation, and the number of layers of the steel bar barbs is not less than two.

[0007] Further preferred: an exhaust hole is provided at the center of the embedded steel plate, and the exhaust hole can discharge the air at the bottom of the embedded steel plate, which is beneficial to the pouring of the concrete foundation layer and makes the bottom of the embedded steel plate filled with concrete.

[0008] Further preferred: the steel bar barb is in a C-shaped structure, the middle width of the steel bar barb matches the back width of the channel steel, the middle of the steel bar barb is welded to the back of the channel steel, and the two ends of the steel bar barb are bent to the front of both sides of the channel steel.

[0009] Further preferably, the steel mesh is buried in the concrete foundation in multiple layers. The number of layers of the steel mesh is determined according to the thickness of the concrete foundation and is not less than two layers.

[0010] The anchoring foundation structure at the bottom of the tall support column is achieved by vertically welding four channel steels at the bottom of the embedded steel plate. The four channel steels are symmetrically arranged with the center of the embedded steel plate. The bottom ends of the four channel steels extend into the lower part of the concrete foundation. The cast-in-place concrete foundation can be embedded in the channel steels. The channel steels are firmly connected to the concrete foundation, and multiple layers of steel bar barbs are arranged on the channel steels. The arrangement of the steel bar barbs increases the lateral connection between the channel steels and the concrete foundation, thereby increasing the anchoring force between the tall support column and the concrete foundation and improving the firmness of the overall structure. An exhaust hole is arranged in the center of the embedded steel plate to ensure that when the concrete foundation is cast-in-place, the concrete can fill the bottom of the embedded steel plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the anchor foundation structure at the bottom of the tall support column;

[0012] Figure 2 for Figure 1 Schematic diagram of the middle AA direction;

[0013] Figure 3 It is a schematic diagram of the connection structure of the embedded steel plate;

[0014] The names corresponding to the numbers in the figure are:

[0015] 1. Concrete foundation; 2. Embedded steel plate; 3. Steel bar barbs; 4. Channel steel; 5. Exhaust holes; 6. Steel mesh. DETAILED DESCRIPTION

[0016] In order to make the technical solution and advantages of the present application more clear, the technical solution is clearly and completely described below in conjunction with embodiments. Example

[0017] A bottom anchoring foundation structure of a tall support column comprises a concrete foundation 1 and an embedded steel plate 2, wherein three layers of steel mesh 6 are embedded in the concrete foundation 1, and the embedded steel plate 2 is embedded in the top of the concrete foundation 1. The embedded steel plate 2 is a square steel plate, and four channel steels 4 are vertically welded to the bottom of the embedded steel plate 2. The four channel steels 4 are symmetrically arranged with the center of the embedded steel plate 2, and the bottom ends of the four channel steels 4 extend into the lower part of the concrete foundation 1, and the top of the embedded steel plate 2 is flush with the top surface of the concrete foundation 1, and the four channel steels 4 are respectively provided with three layers of steel bar barbs 3.

[0018] An exhaust hole 5 is arranged at the center of the embedded steel plate 2 .

[0019] The steel barb 3 is in a C-shaped structure, the middle width of the steel barb 3 matches the back width of the channel steel 4, the middle of the steel barb 3 is welded to the back of the channel steel 4, and the two ends of the steel barb 3 are bent to the front of both sides of the channel steel 4.

[0020] The construction process of the anchor foundation structure at the bottom of the tall support column is as follows: first, the site is prepared, and a casting mold for making the concrete foundation 1 is set up, a steel mesh 6 is laid out in the mold and an embedded steel plate 2 is placed, the embedded steel plate 2 is pre-welded with the channel steel 4 and the steel bar barbs 3 for standby use, and after laying out the steel mesh 6 and placing the embedded steel plate 2, concrete is poured, and the horizontal surface of the embedded steel plate 2 is adjusted, while ensuring that the top surface of the concrete foundation 1 is flush with the top surface of the embedded steel plate 2. After the concrete foundation 1 has met the required hardness requirements, the tall support column can be connected and erected on the embedded steel plate 2.

[0021] The above description is not a limitation of the present application, and the present application is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present application should fall within the scope of protection of the present application.

Claims

1. A bottom anchoring foundation structure of a tall support column, comprising a concrete foundation (1) and an embedded steel plate (2), wherein a steel mesh (6) is embedded in the concrete foundation (1), and the embedded steel plate (2) is embedded in the top of the concrete foundation (1), characterized in that: The embedded steel plate (2) is a square steel plate. Four channel steels (4) are vertically welded to the bottom of the embedded steel plate (2). The four channel steels (4) are symmetrically arranged around the center of the embedded steel plate (2). The bottom ends of the four channel steels (4) extend into the lower part of the concrete foundation (1). The top of the embedded steel plate (2) is flush with the top surface of the concrete foundation (1). The four channel steels (4) are respectively provided with multiple layers of steel bar barbs (3).

2. The bottom anchoring foundation structure of the tall support column according to claim 1 is characterized in that: An exhaust hole (5) is provided at the center of the embedded steel plate (2).

3. The bottom anchoring foundation structure of the tall support column according to claim 1 is characterized in that: The steel bar barb (3) is in a C-shaped structure, the middle width of the steel bar barb (3) matches the back width of the channel steel (4), the middle of the steel bar barb (3) is welded to the back of the channel steel (4), and the two ends of the steel bar barb (3) are bent toward the front of both sides of the channel steel (4).

4. The bottom anchoring foundation structure of the tall support column according to claim 1 is characterized in that: The steel mesh (6) is embedded in multiple layers in the concrete foundation (1).

Images