Large-area raft steel reinforcement support system

Abstract

The utility model relates to raft foundation construction technology field of building engineering, concretely discloses a large -area raft reinforcement support system, including raft reinforcement support, and the bottom reinforcement, middle reinforcement and surface gluten that are respectively arranged in the bottom, middle and top of raft reinforcement support, and raft reinforcement support includes a plurality of stand column base, the steel stand column that is arranged on the top of stand column base and the abdominal crossbeam that is connected between the abdominal part of steel stand column and the top crossbeam that is connected between the top of steel stand column, the junction of transverse abdominal crossbeam, longitudinal abdominal crossbeam, transverse top crossbeam, longitudinal top crossbeam and steel stand column all are equipped with connecting fastener, and connecting fastener includes two square steel short section and adjustable bolt, and the lap joint of steel stand column and abdominal crossbeam and steel stand column and top crossbeam is fixed through connecting fastener, thereby reduces the welding workload on site, reduces the construction difficulty, shortens the construction period.

Description

Technical Field

[0001] This utility model relates to the field of raft foundation construction technology in building engineering, and specifically to a large-area raft foundation steel reinforcement support system. Background Technology

[0002] In high-rise buildings, large basements, and other projects, large-area raft foundations are widely used because they can evenly transfer loads and enhance the overall structural integrity. Raft foundation construction requires multiple layers of reinforcing mesh, typically including bottom reinforcement, top reinforcement, and middle reinforcement, necessitating the construction of a support system. Traditional raft foundation reinforcement support systems often employ steel pipe scaffolding or welded steel structures: steel pipe scaffolding has poor stability and is prone to deformation of the reinforcing mesh due to uneven loads; while welded steel structures offer higher strength, the on-site welding workload is large, construction efficiency is low, and welded components are difficult to disassemble and reuse, resulting in material waste; furthermore, welding quality is greatly affected by the skill of construction personnel, posing safety hazards such as weld cracking, and thus failing to meet the requirements for efficient and stable construction of large-area raft foundations. Utility Model Content

[0003] The purpose of this invention is to provide a large-area raft foundation steel reinforcement support system to solve the problems of excessive welding and low efficiency in traditional support systems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A large-area raft foundation reinforcement support system includes a raft foundation reinforcement bracket, and bottom reinforcement, middle reinforcement, and top reinforcement respectively located at the bottom, middle, and top of the raft foundation reinforcement bracket. The raft foundation reinforcement bracket includes multiple column bases, steel columns positioned above the column bases, and crossbeams connecting the webs of the steel columns and a top crossbeam connecting the tops of the steel columns. The bottom ends of the steel columns are fixed to the column bases. The crossbeams include transverse and longitudinal crossbeams, which are connected transversely and longitudinally between the webs of the steel columns, respectively. The top crossbeams include transverse and longitudinal top crossbeams. The longitudinal top beams are connected to the top of the steel columns in both transverse and longitudinal directions. Connecting fasteners are provided at the junctions of the transverse and longitudinal web beams, the transverse and longitudinal top beams, and the steel columns. Each connecting fastener includes two square steel short sections and adjustable bolts respectively provided on the two square steel short sections. The two square steel short sections are perpendicular to each other and fixed with one side abutting against each other. The two adjustable bolts are respectively threaded through the sides of the two square steel short sections. The connecting fasteners are respectively sleeved on the two square steel short sections at the overlaps between the steel columns and the web beams, and between the steel columns and the top beams. The ends of the adjustable bolts abut against the corresponding steel columns, web beams, and top beams.

[0005] Furthermore, the bottom reinforcement includes transverse bottom reinforcement and longitudinal bottom reinforcement, which are arranged in a grid structure. A concrete pad is provided at the bottom of the bottom reinforcement. The transverse bottom reinforcement is evenly spaced and laid vertically on the concrete pad, and the longitudinal bottom reinforcement is evenly spaced and laid vertically on the transverse bottom reinforcement.

[0006] Furthermore, the ribs include transverse ribs and longitudinal ribs, which are arranged in a grid-like structure. The longitudinal ribs are evenly spaced above the top crossbeam, and the transverse ribs are evenly spaced and vertically laid above the longitudinal ribs. The middle steel reinforcement structure is the same as the rib structure, and the middle steel reinforcement is laid above the web crossbeam.

[0007] Furthermore, the column base includes steel shims and a column sleeve. The steel shims are arranged in a matrix above the bottom reinforcement bars. The bottom end of the column sleeve is fixed on the steel shims, and the column sleeve is fitted onto the bottom end of the steel column and fixed by bolts.

[0008] Furthermore, the steel gasket has a specification of 300*300*5mm, and the distance between the center points of adjacent steel gaskets is no more than 1500mm.

[0009] Furthermore, the adjustable bolt has a rubber pad at its end, which is located inside the through hole of the square steel section.

[0010] Compared with the prior art, this utility model has the following features and beneficial effects: This utility model replaces welding by installing connecting fasteners at the junctions of the transverse and longitudinal crossbeams, the transverse and longitudinal top crossbeams, and the steel columns, thereby reducing on-site welding work, lowering construction difficulty, and shortening the construction cycle. The matrix-type column base and rigid steel frame ensure uniform load distribution, and the multi-layer crossbeam support prevents deformation of the steel mesh, improving the construction quality of the raft foundation. It features safety and applicability, has great promotion and practical value, and will generate good economic benefits after widespread application. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0012] Reference numerals: 1. Column base; 2. Steel column; 3. Transverse web beam; 4. Longitudinal web beam; 5. Transverse top beam; 6. Longitudinal top beam; 7. Connecting fastener; 701. Square steel short section; 702. Adjustable bolt; 8. Bottom reinforcement; 9. Middle reinforcement; 10. Top reinforcement; 11. Concrete pad. Detailed Implementation

[0013] To make the technical means, innovative features, objectives and effects of this utility model easier to understand, the utility model will be further described below.

[0014] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0015] This utility model discloses a large-area raft foundation steel reinforcement support system, such as Figure 1As shown, the raft foundation includes a reinforcement support, and bottom reinforcement 8, middle reinforcement 9, and top reinforcement 10 respectively located at the bottom, middle, and top of the support. The bottom reinforcement 8 includes transverse bottom reinforcement and longitudinal bottom reinforcement, which are arranged in a grid structure. A concrete pad 11 is provided at the bottom of the bottom reinforcement 8. The transverse bottom reinforcement is evenly spaced and laid vertically above the concrete pad 11, and the longitudinal bottom reinforcement is evenly spaced and laid vertically above the transverse bottom reinforcement. The raft foundation reinforcement support includes multiple column bases 1, steel columns 2 located above the column bases 1, and crossbeams connecting the webs of the steel columns 2 and top crossbeams connecting the tops of the steel columns 2. The column base 1 includes steel shims and column sleeves. The steel shims are 300*3 mm in size. 00*5mm steel shims are arranged in a matrix above the bottom reinforcement 8, with the center-to-center distance between adjacent steel shims not exceeding 1500mm. The column sleeve is made of square steel, and the bottom end of the column sleeve is fixed to the middle of the steel shims. The steel column 2, the web crossbeam, and the top crossbeam are all made of steel. Bolt holes are provided through the bottom end of the steel column 2 and the column sleeve. The column sleeve is fixed to the bottom end of the steel column 2 by bolts. The web crossbeam includes a transverse web crossbeam 3 and a longitudinal web crossbeam 4, which are connected transversely and longitudinally between the webs of the steel column 2, respectively. The top crossbeam includes a transverse top crossbeam 5 and a longitudinal top crossbeam 6, which are connected transversely and longitudinally to the top of the steel column 2, respectively. At the junctions of the transverse belly beam 3, longitudinal belly beam 4, transverse top beam 5, longitudinal top beam 6, and the steel column 2, there are connecting fasteners 7. Each connecting fastener 7 includes two square steel sections 701 and adjustable bolts 702 respectively mounted on the two square steel sections 701. The two square steel sections 701 are perpendicular to each other and welded together on one side. The two adjustable bolts 702 are respectively located on the sides of the two square steel sections 701. Threaded holes are provided on the sides of the square steel sections 701, and the adjustable bolts 702 are threadedly connected to one side of the square steel section 701. The connecting fasteners 7 are respectively sleeved on the two square steel sections 701 at the overlaps between the steel column 2 and the belly beam, and between the steel column 2 and the top beam. A rubber pad is provided at the end of the 702 section, which is located in the through hole of the square steel short section 701. The end of the adjustable bolt 702 abuts against the steel column 2, the web crossbeam, and the top crossbeam, thereby achieving the connection and fixation between the web crossbeam, the top crossbeam, and the steel column 2 without welding, forming the overall structure of the raft foundation reinforcement support. This greatly reduces the amount of welding work in the construction process of the raft foundation reinforcement support and improves construction efficiency. The top reinforcement 10 includes transverse top reinforcement and longitudinal top reinforcement. The transverse top reinforcement and longitudinal top reinforcement are arranged in a grid structure. The longitudinal top reinforcement is evenly spaced above the top crossbeam, and the transverse top reinforcement is evenly spaced and vertically laid above the longitudinal top reinforcement. The structure of the middle reinforcement 9 is the same as that of the top reinforcement 10, and the middle reinforcement 9 is laid above the web crossbeam.

[0016] This utility model replaces welding by installing connecting fasteners at the junctions of the transverse and longitudinal crossbeams, the transverse and longitudinal top crossbeams, and the steel columns, thereby reducing on-site welding workload, lowering construction difficulty, and shortening the construction cycle. The matrix-type column base and rigid steel frame ensure uniform load distribution, and the multi-layer crossbeam support prevents deformation of the steel mesh, thus improving the construction quality of the raft foundation.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0018] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A large-area raft foundation reinforcement support system, characterized in that: The raft foundation includes a raft foundation reinforcement support, and bottom reinforcement (8), middle reinforcement (9), and top reinforcement (10) respectively located at the bottom, middle, and top of the raft foundation reinforcement support. The raft foundation reinforcement support includes multiple column bases (1), steel columns (2) located above the column bases (1), and a crossbeam connecting the webs of the steel columns (2) and a top crossbeam connecting the top of the steel columns (2). The bottom of the steel columns (2) is fixed to the column bases (1). The crossbeams include a transverse crossbeam (3) and a longitudinal crossbeam (4). The transverse crossbeam (3) and the longitudinal crossbeam (4) are connected transversely and longitudinally between the webs of the steel columns (2), respectively. The top crossbeam includes a transverse top crossbeam (5) and a longitudinal top crossbeam (6). The transverse top crossbeam (5) and the longitudinal top crossbeam (6) are connected transversely and longitudinally, respectively. Between the top of the steel column (2), at the junctions of the transverse belly beam (3), the longitudinal belly beam (4), the transverse top beam (5), the longitudinal top beam (6) and the steel column (2), there are connecting fasteners (7). The connecting fasteners (7) include two square steel short sections (701) and adjustable bolts (702) respectively provided on the two square steel short sections (701). The two square steel short sections (701) are perpendicular to each other and fixed with one side abutting against each other. The two adjustable bolts (702) are respectively threaded through the side of the two square steel short sections (701). The connecting fasteners (7) are respectively sleeved on the two square steel short sections (701) at the overlaps between the steel column (2) and the belly beam and the steel column (2) and the top beam. The ends of the adjustable bolts (702) abut against the corresponding steel column (2), belly beam and top beam.

2. The large-area raft foundation reinforcement support system according to claim 1, characterized in that: The bottom reinforcement (8) includes transverse bottom reinforcement and longitudinal bottom reinforcement. The transverse bottom reinforcement and longitudinal bottom reinforcement are arranged in a grid structure. A concrete pad (11) is provided at the bottom of the bottom reinforcement (8). The transverse bottom reinforcement is evenly spaced and laid vertically above the concrete pad (11), and the longitudinal bottom reinforcement is evenly spaced and laid vertically above the transverse bottom reinforcement.

3. The large-area raft foundation reinforcement support system according to claim 2, characterized in that: The ribs (10) include transverse ribs and longitudinal ribs. The transverse ribs and longitudinal ribs are arranged in a grid structure. The longitudinal ribs are evenly spaced above the top crossbeam. The transverse ribs are evenly spaced and vertically spaced above the longitudinal ribs. The structure of the middle steel bar (9) is the same as that of the ribs (10). The middle steel bar (9) is laid above the abdominal crossbeam.

4. The large-area raft foundation reinforcement support system according to claim 1, characterized in that: The column base (1) includes steel shims and column sleeves. The steel shims are arranged in a matrix above the bottom reinforcement (8). The bottom end of the column sleeve is fixed on the steel shims. The column sleeve is fitted onto the bottom end of the steel column (2) and fixed by bolts.

5. A large-area raft foundation reinforcement support system according to claim 4, characterized in that: The steel gasket has a specification of 300*300*5mm, and the distance between the center points of adjacent steel gaskets is no more than 1500mm.

6. A large-area raft foundation reinforcement support system according to any one of claims 1 to 5, characterized in that: The adjustable bolt (702) is provided with a rubber pad at its end, which is located in the through hole of the square steel short section (701).

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