Steel stand column connecting structure facilitating penetration of foundation pit concrete supporting steel bars

Abstract

The utility model belongs to the technical field of building construction, and relates to a steel stand column connecting structure facilitating penetration of foundation pit concrete supporting steel bars, which adopts the technical scheme that the joint of a concrete support and a steel stand column is locally cut off, angle steel is removed, and meanwhile, batten plates are canceled; the angle steel is cut into upper angle steel and lower angle steel; a horizontal upper connecting end plate is arranged on the upper cut-off surface of the angle steel, and a horizontal lower connecting end plate is arranged on the lower cut-off surface of the angle steel; the upper connecting end plate is fixedly connected with the upper angle steel; the lower connecting end plate is fixedly connected with the lower angle steel; the upper connecting end plate and the lower connecting end plate are fixedly connected through a plurality of vertical connecting rods; supporting main reinforcements of the concrete supports penetrate through the interval spaces between the connecting rods; holes are formed in the middles of the upper connecting end plate and the lower connecting end plate. The contradiction that supporting steel bars at the joint of an existing foundation pit concrete support and the steel stand column cannot smoothly penetrate through the steel stand column is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially, it relates to a steel stand column connecting structure convenient for foundation pit concrete support steel bar to cross. BACKGROUND

[0002] The foundation pit support structure often adopts the form of concrete support and steel stand column connection, the specification and quantity of the concrete support reinforcement are determined by stress calculation, and the steel stand column is usually spliced by four L-shaped angle steels and patch plates.

[0003] The concrete support and the steel stand column connection, especially the multiple support rod assembly, the support reinforcement is dense, often encounters the conflict of the support reinforcement and the angle steel and the patch plate of the steel stand column, leads to the situation that the support reinforcement cannot cross, the support reinforcement is cut off or the angle steel and the patch plate are cut off on the construction site, which can affect the overall stability of the foundation pit support and has a security risk. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the contradiction that the support reinforcement cannot smoothly cross the steel stand column at the concrete support and steel stand column connection of the existing foundation pit, and provides a steel stand column connecting structure convenient for the steel bar of the foundation pit concrete support to cross.

[0005] In order to realize the above-mentioned utility model purposes, the utility model provides the following technical scheme:

[0006] A steel stand column connecting structure convenient for the steel bar of the foundation pit concrete support to cross, the concrete support is connected with the steel stand column, the steel stand column includes angle steel and patch plate, the angle steel is located at the four corners of the steel stand column, the longitudinally arranged patch plate is located at the four faces of the steel stand column, and the two sides are fixedly connected with the angle steel respectively, the angle steel is partially cut off and removed at the connection of the concrete support and the steel stand column, and the patch plate is cancelled, the angle steel is cut off into upper angle steel and lower angle steel, a horizontal upper connecting end plate is arranged on the upper cut surface of the angle steel, a horizontal lower connecting end plate is arranged on the lower cut surface of the angle steel, the upper connecting end plate is fixedly connected with the upper angle steel, the lower connecting end plate is fixedly connected with the lower angle steel, a plurality of vertical connecting rods are fixedly connected between the upper connecting end plate and the lower connecting end plate, the support main reinforcement of the concrete support passes through the interval space between the connecting rods, and the middle of the upper connecting end plate and the lower connecting end plate is holed.

[0007] Based on the above technical features: the number of the connecting rods is twelve, one angle steel corresponds to every three connecting rods, and is fixedly welded with the upper connecting end plate and the lower connecting end plate respectively, one connecting rod is arranged at the corner of the angle steel, and one connecting rod is arranged at every side of the angle steel. Ensure that the connecting rod can bear the vertical load transmitted by the steel stand column.

[0008] Based on the above technical features: a horizontal fixing plate is set between the upper connecting end plate and the lower connecting end plate, the fixing plate is fixedly connected to the connecting rod, and the fixing plate has an opening in the middle.

[0009] Based on the above technical features: the fixing plate is a single piece, set in the middle of the connecting rod.

[0010] This connection structure employs multiple vertically spaced connecting rods. First, the connecting rods are connected to the upper and lower connecting end plates. Then, the upper and lower connecting end plates are fixedly connected to the upper and lower steel columns, respectively. A fixing plate is installed in the middle of the connecting rods to enhance the overall stability of the connection structure. Due to the spaced arrangement of the connecting rods, it ensures that the supporting reinforcing bars can pass smoothly through the steel columns. Using the steel column connection structure provided by this invention, which facilitates the passage of reinforcing bars in foundation pit concrete supports, the safety hazards caused by cutting off angle steel or connecting plates in existing technologies are eliminated during the erection of the main supporting reinforcement of the concrete support. This simplifies the construction process of connecting the concrete support and the steel column, improves construction efficiency, and reduces construction costs.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the connection structure adopts multiple spaced connecting rods to replace the traditional angle steel and gusset plate system, so that the reinforcement of the concrete support can easily pass through the steel column, especially at the point where multiple supports converge, the steel bars are dense, and there is no need to cut the angle steel or gusset plate of the steel column to pass through the main support, thus avoiding safety hazards; the construction process of connecting the concrete support and the steel column is simplified, and the construction efficiency is improved. Attached Figure Description

[0012] Figure 1 This is a three-dimensional diagram of the steel column connection structure.

[0013] Figure 2 This is a three-dimensional diagram of the steel column connection structure.

[0014] Figure 3 This is a three-dimensional illustration of the steel column in this utility model.

[0015] Figure 4 This is an elevation view of the steel column in this utility model.

[0016] Figure 5 yes Figure 4 AA cross-section view.

[0017] Figure 6 yes Figure 4 BB cross-section.

[0018] The numbers in the diagram are: 1-1 Upper connecting plate; 1-2 Lower connecting plate; 2 Connecting rod; 3 Fixing plate; 4 Angle steel; 5 Draping plate; 6 Concrete support; 7 Supporting main reinforcement. Detailed Implementation

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0020] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] Furthermore, in the description of this utility model, unless otherwise stated, "multiple" means two or more. This utility model's node is applicable to the connection between concrete supports and steel columns in deep foundation pits. When there are multiple vertical concrete supports, this utility model's node can be installed at the corresponding elevation positions of the same steel column and each support.

[0022] like Figures 1 to 6 As shown, the concrete support 6 is connected to the steel column, which includes angle steel 4 and connecting plates 5. The angle steel 4 is located at the four corners of the steel column, and the longitudinally arranged connecting plates 5 are located on the four sides of the steel column, with each side fixedly connected to the angle steel 4. At the connection between the concrete support 6 and the steel column, the angle steel 4 is partially cut off and removed, and the connecting plates 5 are also removed. The angle steel 4 is cut into an upper angle steel and a lower angle steel. A horizontal upper connecting end plate 1-1 is provided on the upper cut surface of the angle steel 4, and a horizontal lower connecting end plate 1-2 is provided on the lower cut surface of the angle steel 4. The upper connecting end plate 1-1 is fixedly connected to the upper angle steel. The lower connecting end plate 1-2 is fixedly connected to the lower angle steel. The upper connecting end plate 1-1 and the lower connecting end plate 1-2 are fixedly connected by several vertical connecting rods 2. The main support reinforcement 7 of the concrete support 6 passes through the space between the connecting rods 2. An opening is made in the middle of the upper connecting end plate 1-1 and the lower connecting end plate 1-2. Because the steel column is lowered into the pile hole together with the steel reinforcement cage located below it, the hole is opened to facilitate the smooth lowering of the guide pipe for pouring the concrete of the column pile.

[0023] The upper connecting end plate 1-1 and the lower connecting end plate 1-2 are made of steel plates with a thickness of 30mm to 40mm. The upper connecting end plate 1-1 and the lower connecting end plate 1-2 are processed in the factory or on-site. During processing, a square hole with a side length of 250mm to 350mm or a round hole with a diameter of 250mm to 350mm is opened in the middle of the upper connecting end plate 1-1 and the lower connecting end plate 1-2. The upper connecting end plate 1-1 and the lower connecting end plate 1-2 are respectively connected to the angle steel 4 of the steel column by full welding.

[0024] The number of connecting rods 2 can be twelve; every three connecting rods 2 correspond to one angle steel 4, and are welded and fixed to the upper connecting end plate 1-1 and the lower connecting end plate 1-2 respectively; one connecting rod 2 is set at the corner of the angle steel 4, and one connecting rod 2 is set on each side of the angle steel 4. The connecting rods 2 are made of square steel with a side length of 40mm to 60mm, and the length of the connecting rods 2 is adjusted according to the design height of the concrete support. The connecting rods 2 extend at least 100mm above and below the concrete support surface.

[0025] To ensure the integrity and stability of the connecting rod 2, a horizontal fixing plate 3 is installed between the upper connecting end plate 1-1 and the lower connecting end plate 1-2. The fixing plate 3 is fixedly connected to the connecting rod 2; a hole is made in the middle of the fixing plate 3. Because the steel column is lowered into the pile hole together with the column pile reinforcement cage located below it, the hole is to facilitate the smooth lowering of the guide pipe for pouring the concrete of the column pile body.

[0026] The thickness of the fixing plate 3 can be 12mm to 20mm. The fixing plate 3 is manufactured in the factory or on-site. An opening matching the size of the connecting rod 2 is made at the position of each connecting rod 2. A square hole with a side length of 250mm to 350mm or a round hole with a diameter of 250mm to 350mm is made in the middle of the fixing plate 3. The fixing plate 3 is placed in the middle between the upper connecting end plate 1-1 and the lower connecting end plate 1-2, and the connecting rod 2 is welded to the fixing plate 3.

[0027] During the hoisting and installation of the steel column using this invention, the main reinforcing bars can easily pass through the connecting rods without strict control over the column's orientation. That is, the side of the steel column does not need to be aligned with the cross-section of the concrete support; an angle between them is sufficient for the main reinforcing bars to pass through the steel column. This invention simplifies the construction process of connecting the concrete support to the steel column, improves construction efficiency, and reduces construction costs.

[0028] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and substitutions can be made without departing from the technical principles of the present utility model, and these improvements and substitutions should also be considered within the protection scope of the present utility model.

Claims

1. A steel column connection structure for facilitating the passage of reinforcing bars in a foundation pit concrete support, wherein a concrete support (6) is connected to a steel column, the steel column comprising angle steel (4) and connecting plates (5); the angle steel (4) is located at the four corners of the steel column, and longitudinally arranged connecting plates (5) are located on the four sides of the steel column, and are fixedly connected to the angle steel (4) on both sides respectively; characterized in that: At the connection between the concrete support (6) and the steel column, the angle steel (4) is partially cut off and removed, and the gusset plate (5) is removed at the same time; the angle steel (4) is cut into an upper angle steel and a lower angle steel; a horizontal upper connecting end plate (1-1) is provided on the upper cut surface of the angle steel (4), and a horizontal lower connecting end plate (1-2) is provided on the lower cut surface of the angle steel (4); the upper connecting end plate (1-1) is fixedly connected to the upper angle steel; the lower connecting end plate (1-2) is fixedly connected to the lower angle steel; the upper connecting end plate (1-1) and the lower connecting end plate (1-2) are fixedly connected by several vertical connecting rods (2); the main supporting reinforcement (7) of the concrete support (6) passes through the space between the connecting rods (2); and an opening is made in the middle of the upper connecting end plate (1-1) and the lower connecting end plate (1-2).

2. The steel column connection structure for facilitating the passage of reinforcing steel bars in foundation pit concrete support according to claim 1, characterized in that: The number of connecting rods (2) is twelve; every three connecting rods (2) correspond to one angle steel (4), and are welded and fixed to the upper connecting end plate (1-1) and the lower connecting end plate (1-2) respectively; one connecting rod (2) is set at the corner of the angle steel (4), and one connecting rod (2) is set at each side of the angle steel (4).

3. A steel column connection structure for facilitating the passage of reinforcing steel bars in foundation pit concrete support, as described in claim 1 or 2, characterized in that: A horizontal fixing plate (3) is provided between the upper connecting end plate (1-1) and the lower connecting end plate (1-2), and the fixing plate (3) is fixedly connected to the connecting rod (2); the fixing plate (3) has an opening in the middle.

4. The steel column connection structure for facilitating the passage of reinforcing steel bars in foundation pit concrete support according to claim 3, characterized in that: The fixing plate (3) is a single piece, located in the middle of the connecting rod (2).

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