Foundation pit bottom plate reinforcing steel bar support

Abstract

The utility model relates to a foundation pit bottom plate reinforcing steel bar support which comprises a concrete cushion block and a channel steel base, the concrete cushion block is placed between a foundation pit bottom plate and a raft bottom layer reinforcing steel bar net, the channel steel base is welded to the raft bottom layer reinforcing steel bar net, and the channel steel base is located over the concrete cushion block. U-steel stand columns perpendicular to the U-steel base are welded to the U-steel base, U-steel cross beams and angle steel longitudinal beams which connect the adjacent U-steel stand columns are installed at the tops of the U-steel stand columns, and the U-steel cross beams and the angle steel longitudinal beams are perpendicular to each other. The device has the advantages that the device can be transported to a foundation pit bottom plate to be assembled after being machined in a factory, the installation structure is simple, and site construction is convenient; the channel steel base, the channel steel stand columns, the channel steel cross beams and the angle steel longitudinal beams are adopted, and concrete can be conveniently vibrated during concrete pouring.

Description

Technical Field

[0001] The utility model relates to the field of construction engineering, in particular to a foundation pit bottom plate steel bar bracket. Background Art

[0002] In construction projects, deep foundation pit concrete construction is a common construction method. Traditional foundation pit bottom plate reinforcement brackets are welded by steel pipe materials and brackets as a whole, which requires on-site welding. The on-site construction process is complicated, and there is no way to ensure that the concrete in the steel pipe is filled densely during the pouring process, which poses a hidden danger to the quality of the later project and cannot meet the needs of large-volume concrete construction. Utility Model Content

[0003] The purpose of the utility model is to overcome the above problems existing in the prior art and provide a foundation pit bottom plate steel bar bracket.

[0004] In order to achieve the above technical objectives and the above technical effects, the present invention is implemented through the following technical solutions:

[0005] A foundation pit floor steel bar support comprises a concrete pad and a channel steel base, wherein the concrete pad is placed between the foundation pit floor and the bottom steel bar mesh of the raft slab, the channel steel base is welded to the bottom steel bar mesh of the raft slab, and the channel steel base is located directly above the concrete pad, a channel steel column perpendicular to the channel steel base is welded to the channel steel base, a channel steel cross beam and an angle steel longitudinal beam connecting adjacent channel steel columns are installed on the top of the channel steel column, and the channel steel cross beam and the angle steel longitudinal beam are perpendicular to each other.

[0006] Wherein, an angle steel transverse connecting rod and an angle steel longitudinal connecting rod for connecting adjacent channel steel columns are installed in the middle of the channel steel column, and the angle steel transverse connecting rod and the angle steel longitudinal connecting rod are perpendicular to each other.

[0007] Among them, the top and the middle of the channel steel waist surface of the channel steel column are respectively provided with a first strip hole, and the top and the middle of the channel steel leg surface of the channel steel column are respectively provided with a second strip hole, the long sides of the first strip hole and the second strip hole are parallel to the long axis of the channel steel column, the channel steel column is connected to the channel steel crossbeam and the angle steel transverse connecting rod by a threaded fastener sleeved in the first strip hole, and the channel steel column is connected to the angle steel longitudinal beam and the angle steel longitudinal connecting rod by a threaded fastener sleeved in the second strip hole.

[0008] The bottom end of the concrete pad is a plane, and the top end of the concrete pad is provided with a grid-type limiting groove.

[0009] The concrete pad has a length of 240 mm, a width of 115 mm and a height of 53 mm.

[0010] Wherein, the channel steel cross beam is located above the angle steel longitudinal beam.

[0011] The beneficial effects of the utility model are: it can be transported to the foundation pit bottom plate for assembly after being processed in the factory, the installation structure is simple, and the on-site construction is convenient; the channel steel base, channel steel columns, channel steel beams, and angle steel longitudinal beams are used to facilitate the vibration of concrete when pouring concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0013] Figure 1 It is a structural schematic diagram of the foundation pit bottom plate steel bar support in the utility model;

[0014] Figure 2 It is a structural schematic diagram of the concrete pad in the utility model;

[0015] Figure 3 It is a structural schematic diagram of the middle channel steel column of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the middle channel steel beam of the utility model;

[0017] Explanation of the numbers in the figure: concrete pad 1, limiting groove 11, channel steel base 2, channel steel column 3, first strip hole 31, second strip hole 32, channel steel crossbeam 4, angle steel longitudinal beam 5, angle steel transverse connecting rod 6, angle steel longitudinal connecting rod 7, threaded fastener 8, round hole 9, foundation pit floor 100, raft bottom steel mesh 200. DETAILED DESCRIPTION

[0018] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0019] like Figures 1 to 4 As shown, a foundation pit bottom plate reinforcement support includes a concrete pad 1 and a channel steel base 2.

[0020] The concrete pad 1 is placed between the foundation pit bottom plate 100 and the bottom steel mesh 200 of the raft slab. The bottom end of the concrete pad 1 is a plane, and a grid-type limiting groove 11 is provided at the top of the concrete pad 1. The limiting groove 11 prevents slippage between the concrete pad 1 and the bottom steel mesh 200 of the raft slab; the length of the concrete pad 1 is 240 mm, the width is 115 mm, and the height is 53 mm.

[0021] The channel steel base 2 is welded on the bottom steel mesh 200 of the raft slab, and the channel steel base 2 is located directly above the concrete pad 1 .

[0022] A channel steel column 3 perpendicular to the channel steel base 2 is welded on the channel steel base 2. A channel steel crossbeam 4 and an angle steel longitudinal beam 5 connecting adjacent channel steel columns 3 are installed on the top of the channel steel column 3. The channel steel crossbeam 4 and the angle steel longitudinal beam 5 are perpendicular to each other, and the channel steel crossbeam 4 is located above the angle steel longitudinal beam 5.

[0023] An angle steel transverse connecting rod 6 and an angle steel longitudinal connecting rod 7 are installed in the middle of the channel steel column 3 to connect adjacent channel steel columns 3. The angle steel transverse connecting rod 6 and the angle steel longitudinal connecting rod 7 are perpendicular to each other.

[0024] The top and middle of the channel steel waist surface of the channel steel column 3 are respectively provided with a first strip hole 31, and the top and middle of the channel steel leg surface of the channel steel column 3 are respectively provided with a second strip hole 32. The long sides of the first strip hole 31 and the long sides of the second strip hole 32 are parallel to the long axis of the channel steel column 3. The channel steel column 3 is connected to the channel steel crossbeam 4 and the angle steel transverse connecting rod 6 by a threaded fastener 8 sleeved in the first strip hole 31, and the channel steel column 3 is connected to the angle steel longitudinal beam 5 and the angle steel longitudinal connecting rod 7 by a threaded fastener 8 sleeved in the second strip hole 32.

[0025] The first strip hole 31 and the second strip hole 32 are provided to facilitate fine adjustment of the installation height to adapt to the errors caused by processing and construction site, and ensure that the channel steel column is smoothly connected and fixed with the channel steel crossbeam, angle steel longitudinal beam 5, angle steel transverse connecting rod 6, and angle steel longitudinal connecting rod 7 using threaded fasteners.

[0026] The channel steel cross beam 4, the angle steel longitudinal beam 5, the angle steel transverse connecting rod 6 and the angle steel longitudinal connecting rod 7 are all provided with circular holes 9 for threaded fasteners 8 to pass through.

[0027] The threaded fastener 8 includes a bolt and a nut that are threadedly engaged with each other.

[0028] In the factory, the channel steel is cut into the channel steel base, channel steel column and channel steel beam according to the design drawings, and the angle steel installation design drawings are cut into the angle steel longitudinal beam, angle steel transverse connecting rod and angle steel longitudinal connecting rod. The first strip hole and the second strip hole are opened on the channel steel column, and the circular holes for threaded fasteners to pass through are opened on the channel steel beam, angle steel longitudinal beam, angle steel transverse connecting rod and angle steel longitudinal connecting rod. The bottom end of the channel steel column is welded to the channel steel base; the concrete pad is cast using a mold.

[0029] After the factory processing is completed, the components are transported to the foundation pit floor for on-site assembly.

[0030] The foundation pit floor steel bar support can be processed in the factory and then transported to the foundation pit floor for assembly. The installation structure is simple and the on-site construction is convenient. The channel steel base, channel steel column, channel steel beam and angle steel longitudinal beam are used to facilitate the vibration of concrete when pouring concrete.

[0031] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A foundation pit bottom plate steel bar support, characterized in that: It includes a concrete pad and a channel steel base. The concrete pad is placed between the foundation pit floor and the bottom steel mesh of the raft slab. The channel steel base is welded to the bottom steel mesh of the raft slab, and the channel steel base is located directly above the concrete pad. A channel steel column perpendicular to the channel steel base is welded to the channel steel base. A channel steel crossbeam and an angle steel longitudinal beam connecting adjacent channel steel columns are installed on the top of the channel steel column, and the channel steel crossbeam and the angle steel longitudinal beam are perpendicular to each other.

2. The foundation pit bottom plate steel bar support according to claim 1, characterized in that: An angle steel transverse connecting rod and an angle steel longitudinal connecting rod for connecting adjacent channel steel columns are installed in the middle of the channel steel column, and the angle steel transverse connecting rod and the angle steel longitudinal connecting rod are perpendicular to each other.

3. The foundation pit bottom plate steel bar support according to claim 2, characterized in that: The top and the middle of the channel steel waist surface of the channel steel column are respectively provided with a first strip hole, and the top and the middle of the channel steel leg surface of the channel steel column are respectively provided with a second strip hole, the long sides of the first strip hole and the second strip hole are parallel to the long axis of the channel steel column, the channel steel column is connected to the channel steel crossbeam and the angle steel transverse connecting rod by a threaded fastener sleeved in the first strip hole, and the channel steel column is connected to the angle steel longitudinal beam and the angle steel longitudinal connecting rod by a threaded fastener sleeved in the second strip hole.

4. The foundation pit bottom plate steel bar support according to claim 1, characterized in that: The bottom end of the concrete pad is a plane, and the top end of the concrete pad is provided with a grid-type limiting groove.

5. The foundation pit floor steel bar support according to claim 1, characterized in that: The concrete pad has a length of 240 mm, a width of 115 mm and a height of 53 mm.

6. The foundation pit floor steel bar support according to claim 1, characterized in that: The channel steel cross beam is located above the angle steel longitudinal beam.

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