Foundation connecting structure of steel pipe stand column

Abstract

The utility model discloses a foundation connecting structure of a steel pipe stand column, a base steel plate is connected to a plurality of embedded bolts to realize positioning, a circle of vertically inverted positioning connecting bolts are welded on the top surface of the base steel plate, and when a flange plate at the bottom end of the steel pipe stand column is arranged on the base steel plate, the circle of positioning connecting bolts are positioned on the periphery of the flange plate; each positioning connecting bolt is provided with a pressing plate in a penetrating mode, the inner end of each pressing plate is arranged on a flange plate at the bottom end of the corresponding steel pipe stand column in a pressing mode, and each positioning connecting bolt is in threaded connection with a locking positioning nut to lock and position the corresponding pressing plate. According to the utility model, the positioning and mounting stability of the steel pipe upright post is improved while the base steel plate is not subjected to pre-embedding operation.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering construction, in particular to a foundation connection structure of a steel pipe column. Background Art

[0002] The steel pipe column is an important part of the bridge construction support structure system. The traditional construction method for positioning and installing the steel pipe column is to first embed the embedded base steel plate 02 and the embedded high-strength bolts 03 into the concrete foundation 04, and then strengthen it by welding the strip foundation 05 on the bottom surface of the embedded base steel plate 02 and embedded in the concrete foundation 04. The flange 01 at the bottom of the steel pipe column is connected and fixed to the embedded base steel plate 02 by the embedded high-strength bolts 03 (see Figure 1 ), but in this way, the embedded base steel plate 02 and the embedded high-strength bolts 03 are all embedded in the concrete foundation 04, which can only be used once and cannot be disassembled and reused, and the construction cost is high; in order to solve this problem, the base steel plate 11 is not embedded, but is positioned and connected to the top surface of the concrete foundation 04 by embedded bolts 12 and embedded locking nuts 13, and then a circle of vertically inverted flange connecting bolts 14 is welded on the base steel plate 11, and a circle of bolts on the flange 01 at the bottom end of the steel pipe column are penetrated into a circle of flange connecting bolts 14, and are locked and fixed by locking connecting nuts 15 (see Figure 2 ), thereby realizing the positioning and installation of the steel pipe column, but because the head of the flange connecting bolt 14 cannot pass through a circle of bolt holes on the flange 01, the flange 01 at the bottom end of the steel pipe column is supported on the head of a circle of flange connecting bolts 14, and the flange 01 is in a suspended state, which makes the installation stability of the steel pipe column poor. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a basic connection structure of a steel pipe column, which improves the stability of the positioning and installation of the steel pipe column while ensuring that the base steel plate does not need to be pre-buried.

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

[0005] A foundation connection structure of a steel pipe column, comprising a base steel plate, a plurality of embedded bolts, a circle of positioning connection bolts and a circle of pressing plates, wherein the base steel plate is provided with a plurality of bolt through holes evenly distributed along the annular edge adjacent to the edge, the lower parts of the plurality of embedded bolts are embedded in the concrete foundation, the top ends of the plurality of embedded bolts respectively pass through the corresponding bolt through holes of the base steel plate, thereby positioning the base steel plate on the top surface of the concrete foundation and locking and fixing it by embedded locking nuts;

[0006] The circle of positioning connecting bolts is vertically inverted, and the head of each positioning connecting bolt is welded and fixed on the base steel plate. The thickness of the head of each positioning connecting bolt is not greater than the thickness of the flange at the bottom end of the steel pipe column. In a circle of pressure plates, each pressure plate is provided with a positioning hole. When the flange at the bottom end of the steel pipe column is placed on the base steel plate, a circle of vertically arranged positioning connecting bolts is located on the outer periphery of the flange. The positioning hole of each pressure plate is inserted into a corresponding positioning connecting bolt, and the inner end of each pressure plate is pressed on the flange at the bottom end of the steel pipe column. A locking positioning nut is threadedly connected to each positioning connecting bolt to lock and position the pressure plate.

[0007] There are four embedded bolts, and four corners of the rectangular base steel plate are each provided with a bolt through hole for the corresponding embedded bolts to penetrate.

[0008] The inner end of each pressing plate faces the axis of the flange at the bottom end of the steel pipe column.

[0009] After the steel pipe column is positioned and installed, the horizontal distances between the axis of the positioning holes on a circle of the pressure plate and the axis of the flange at the bottom end of the steel pipe column are equal.

[0010] The embedded bolts are J-shaped embedded anchor bolts.

[0011] Advantages of the utility model:

[0012] When the utility model positions and installs the steel pipe column, the base steel plate does not need to be pre-buried and can be recycled and reused, thus avoiding material waste in the project and reducing project costs; the flange at the bottom end of the steel pipe column of the utility model is completely supported on the base steel plate, thus ensuring the stability of the steel pipe column support; the flange at the bottom end of the steel pipe column of the utility model is pressed and fixed by a circle of pressing plates connected to the outer periphery of the flange to achieve accurate positioning and installation of the steel pipe column. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the first existing steel pipe column foundation connection structure.

[0014] Figure 2 It is a partial structural schematic diagram of the second existing steel pipe column foundation connection structure.

[0015] Figure 3 It is a front sectional view of the utility model.

[0016] Figure 4 It is a top view of the utility model.

[0017] Figure 5 The utility model is a partial structural schematic diagram of the positioning and installation of the flange at the bottom end of the steel pipe column.

[0018] Figure markings: 01-flange at the bottom end of the steel pipe column, 02-embedded base steel plate, 03-embedded high-strength bolts, 04-concrete foundation, 05-strip foundation, 11-base steel plate, 12-embedded bolts, 13-embedded locking nuts, 14-flange connecting bolts, 15-locking connecting nuts, 16-positioning connecting bolts, 17-pressure plate, 18-locking positioning nuts. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See Figure 3-Figure 5 A foundation connection structure of a steel pipe column includes a rectangular base steel plate 11, four embedded bolts 12 (J-shaped embedded anchor bolts), a circle of positioning connecting bolts 16 and a circle of pressing plates 17. A bolt through hole is provided at each of the four corners of the base steel plate 11. The lower parts of the four embedded bolts 12 are embedded in the concrete foundation 04. The top ends of the four embedded bolts 12 respectively pass through the bolt through holes corresponding to the base steel plate 11 so as to position the base steel plate 11 on the top surface of the concrete foundation 04 and lock and fix it through embedded locking nuts 13. A circle of positioning connecting bolts 16 is vertically inverted, that is, the head of each positioning connecting bolt 16 is located at the bottom end, the head of each positioning connecting bolt 16 is welded and fixed to the base steel plate 11, and the thickness of the head of each positioning connecting bolt 16 is less than the bottom flange of the steel pipe column. The thickness of the plate 01; in a circle of pressure plates 17, each pressure plate 17 is provided with a positioning hole. When the flange 01 at the bottom end of the steel pipe column is placed on the base steel plate 11, a circle of vertically arranged positioning connecting bolts 16 is located on the outer periphery of the flange 01, and the positioning hole of each pressure plate 17 is inserted into a corresponding positioning connecting bolt 16. The inner end of each pressure plate 17 is pressed on the flange 01 at the bottom end of the steel pipe column, and the inner end of each pressure plate 17 is facing the axis of the flange 01 at the bottom end of the steel pipe column. A locking positioning nut 18 is threadedly connected on each positioning connecting bolt 16 to lock and position the pressure plate 17. After the steel pipe column is positioned and installed, the horizontal distances between the axis of the positioning holes on a circle of pressure plates 17 and the axis of the flange 01 at the bottom end of the steel pipe column are equal, ensuring that the flange 01 at the bottom end of the steel pipe column is subjected to balanced force.

[0021] 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 foundation connection structure of a steel pipe column, characterized in that: It comprises a base steel plate, a plurality of embedded bolts, a circle of positioning connecting bolts and a circle of pressing plates, wherein the base steel plate is provided with a plurality of bolt through holes evenly distributed along the annular edge near the edge, the lower parts of the plurality of embedded bolts are embedded in the concrete foundation, and the top ends of the plurality of embedded bolts respectively pass through the corresponding bolt through holes of the base steel plate, thereby positioning the base steel plate on the top surface of the concrete foundation and locking and fixing it by embedded locking nuts; The circle of positioning connecting bolts is vertically inverted, and the head of each positioning connecting bolt is welded and fixed on the base steel plate. The thickness of the head of each positioning connecting bolt is not greater than the thickness of the flange at the bottom end of the steel pipe column. In a circle of pressure plates, each pressure plate is provided with a positioning hole. When the flange at the bottom end of the steel pipe column is placed on the base steel plate, a circle of vertically arranged positioning connecting bolts is located on the outer periphery of the flange. The positioning hole of each pressure plate is inserted into a corresponding positioning connecting bolt, and the inner end of each pressure plate is pressed on the flange at the bottom end of the steel pipe column. A locking positioning nut is threadedly connected to each positioning connecting bolt to lock and position the pressure plate.

2. A foundation connection structure of a steel pipe column according to claim 1, characterized in that: There are four embedded bolts, and four corners of the rectangular base steel plate are each provided with a bolt through hole for the corresponding embedded bolts to penetrate.

3. The foundation connection structure of a steel pipe column according to claim 1, characterized in that: The inner end of each pressing plate faces the axis of the flange at the bottom end of the steel pipe column.

4. A foundation connection structure of a steel pipe column according to claim 3, characterized in that: After the steel pipe column is positioned and installed, the horizontal distances between the axis of the positioning holes on a circle of the pressure plate and the axis of the flange at the bottom end of the steel pipe column are equal.

5. The foundation connection structure of a steel pipe column according to claim 1, characterized in that: The embedded bolts are J-shaped embedded anchor bolts.

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