Non-floor type construction operation platform structure

Abstract

The utility model belongs to the technical field of building construction, and discloses a non-floor type construction operation platform structure which comprises a lower floor slab, a plurality of structural columns are arranged on the lower floor slab, brackets fixed to the side faces of the structural columns are further included, H-shaped steel is arranged on the brackets, a plurality of bailey beams are evenly arranged on the H-shaped steel, and the bailey beams are fixed to the lower floor slab. The bailey beam is perpendicular to the H-shaped steel, a plurality of I-shaped steel is evenly installed on the bailey beam, and supporting frame vertical rods are arranged on the I-shaped steel. The non-floor type construction operation platform structure is supported by the lower floor slab and the structural column, does not need a ground foundation, and is suitable for narrow space or high-altitude operation scenes (such as high-rise building core tube construction); the I-shaped steel spacing and the vertical rod arrangement are flexibly adjusted according to the upper load, the bearing requirements of different construction stages are met, and the structure is particularly suitable for construction scenes of complex building structures.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of building construction technology, especially a non - floor type construction operation platform structure. BACKGROUND

[0002] In cast-in-place concrete structure construction of building engineering, formwork support system is the core technical link influencing construction quality, progress and cost. The traditional construction generally adopts floor type full - hall support as operation platform, and this technology has the following obvious defects:

[0003] Space occupation contradiction: full - hall support needs to be set up from the ground, and occupies the vertical space of the whole operation surface. According to the requirement of "unified standard for safety technology of building construction scaffold (GB51210-2016)", the vertical and horizontal spacing of support vertical pole is controlled in 0.9 ~ 1.2m. Taking the standard floor height 4.5m frame structure as an example, the average projection density of support system reaches 3.5 ~ 4.2 roots / m 2 , which leads to the complete blockage of lower structure construction channel, forces the construction process to strictly follow the "from bottom to top" flow sequence, and it is difficult to realize three - dimensional cross operation.

[0004] Low turnover efficiency: the erection height of traditional support needs to cover the whole structure floor height, and the average erection time of single - layer support reaches 2 ~ 3 working days per 100m 2 . More seriously, support removal must be carried out after the concrete strength reaches 100% design strength, which causes the turnover rate of formwork, steel pipe and other materials to be less than 30%, and significantly increases the construction cost.

[0005] Ground treatment burden: for soft ground or backfill area, according to "building foundation design specification (GB50007-2011)", it needs to be pre - treated by layered ramming, concrete cushion pouring and other treatments, which increases the construction cost by 15 ~ 25%.

[0006] Insufficient floor bearing capacity: in the process of upper structure continuation, the lower space has been put into use, the original floor bearing capacity is difficult to meet the upper construction load, and due to the operation requirement of lower space, the floor cannot be back - top reinforced, and when facing this situation, the floor type full - hall formwork cannot be used.

[0007] The above problems restrict the improvement of construction efficiency, cause the increase of the use amount of turnover materials, increase the construction cost to a certain extent, and even cannot carry out the subsequent construction of upper building, therefore a new device needs to be designed. UTILITY MODEL CONTENTS

[0008] The utility model aims at providing a non - floor type construction operation platform structure to solve the problems in the above background technology.

[0009] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0010] A non-floor type construction operation platform structure, including lower floor, a plurality of structural columns are arranged on the lower floor, further including the bracket fixed on the side of the structural column, the bracket is provided with H-shaped steel, a plurality of bailey beams are uniformly arranged on the H-shaped steel, the bailey beam is vertically arranged with the H-shaped steel, a plurality of I-shaped steels are uniformly installed on the bailey beam, and the I-shaped steel is provided with a support frame stand.

[0011] Further, the structural column is made of reinforced concrete column or steel column material, which ensures firmness, and the structural column is provided with a through bolt hole with a diameter greater than 1.2 times the diameter of the bolt, which facilitates the integrity and stability of the bracket connection on both sides.

[0012] Further, the bracket is made of steel plate welding structure and is symmetrically installed on both sides of the structural column and is connected by bolts, which is convenient for disassembly and assembly and serves as the main force fulcrum.

[0013] Further, the H-shaped steel and the bailey beam are both factory prefabricated structures and are connected by bolts, which facilitates transportation to the site and hoisting and assembly.

[0014] Further, the H-shaped steel connects all the brackets in the length direction, improving the overall strength.

[0015] Further, at least two I-shaped steels and bailey beams are fixedly connected between the two structural columns, and the I-shaped steel and the bailey beam are connected by bolts, ensuring the overall stability.

[0016] Compared with the prior art, the beneficial effects are:

[0017] 1. Relying on the lower floor and the structural column support, no ground foundation is needed, and it is suitable for narrow space or high-altitude operation scene (such as high-rise building core tube construction); according to the upper load, the spacing of the I-shaped steel and the stand arrangement are flexibly adjusted to meet the bearing demand of different construction stages, and it is especially suitable for the construction scene of complex building structure;

[0018] 2. The bracket made of steel plate welding is symmetrically installed on both sides of the structural column and is connected by bolts to form the main force fulcrum and enhance the overall stability; the H-shaped steel transversely connects all the brackets to form a continuous force system, disperses the local load, improves the overall strength and anti-deformation ability of the platform, and ensures the transverse stability by connecting at least two I-shaped steels and bailey beams by bolts to avoid displacement or overturning during construction;

[0019] 3, H-shaped steel, bailey beam etc. adopt factory prefabrication, on-site bolt connection, reduce welding operation, shorten construction period; each part (corbel, H-shaped steel, bailey beam) is connected through bolt, convenient to disassemble and assemble, suitable for repeated circulation use, reduce comprehensive cost; the upper flange of I-beam is welded with positioning steel bars, prevent the deflection of support frame stand, simplify construction process, improve installation precision. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of a non-floor type construction operation platform structure according to the present application;

[0021] Figure 2 is a bailey beam and H-shaped steel layout plan view of a non-floor type construction operation platform structure according to the present application;

[0022] Figure 3 is an I-beam layout plan view of a non-floor type construction operation platform structure according to the present application;

[0023] Figure 4 is a support frame stand layout plan view of a non-floor type construction operation platform structure according to the present application.

[0024] In the drawing mark: 1, structure column; 2, corbel; 3, H-shaped steel; 4, bailey beam; 5, I-beam; 6, support frame stand; 7, lower floor. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figures 1-4 , a non-floor type construction operation platform structure, comprising a lower floor 7, the lower floor 7 is provided with a plurality of structure columns 1, further comprising a corbel 2 fixed on the side of the structure column 1, the corbel 2 is provided with an H-shaped steel 3, the H-shaped steel 3 is uniformly provided with a plurality of bailey beams 4, the bailey beam 4 is arranged perpendicularly to the H-shaped steel 3, the bailey beam 4 is uniformly provided with a plurality of I-beams 5, and the I-beam 5 is provided with a support frame stand 6.

[0027] Further, the structural column 1 is made of reinforced concrete column material, which ensures firmness, and the structural column 1 is provided with through bolt holes with a diameter greater than 1.2 times the diameter of the bolt, which facilitates ensuring the integrity and stability of the connection of the two side corbels 2; the corbel 2 is made of steel plate welding structure and is symmetrically installed on the two sides of the structural column 1 and is connected by bolts, which facilitates disassembly and assembly, and serves as the main force fulcrum; the H-shaped steel 3 and the bailey beam 4 are both factory prefabricated structures and are connected by bolts, which facilitates transportation to the site for hoisting and assembly; the H-shaped steel 3 connects all the corbels 2 in the length direction of the H-shaped steel 3, which improves the overall strength; at least two I-shaped steels 5 are fixedly connected between the two structural columns 1 and the bailey beam 4, and the I-shaped steel 5 and the bailey beam 4 are connected by bolts, which ensures the overall stability.

[0028] Working principle: the lower floor 7 is supported by the structural column 1, the corbel 2 is first fixed on the two sides of the structural column 1 by bolts, then the H-shaped steel 3 is transversely fixed on the corbels 2 on the two sides of the structural column 1, then the bailey beam 4 is longitudinally fixed on the H-shaped steel 3, a connecting piece is arranged at the contact position of the H-shaped steel 3 and the bailey beam 4 and is fixed by bolts, which maintains the stability of the bailey beam 4, the I-shaped steel 5 is arranged along the transverse direction according to the calculated distance between the formwork supports, the I-shaped steel 5 is fixedly connected with the bailey beam 4, which maintains the overall stability, the reinforcing steel bars are welded on the upper flange of the I-shaped steel 5 according to the distance between the formwork support vertical rods, which avoids the deviation of the vertical rod placement, then the support frame vertical rods 6 are arranged according to the distance requirement, then the formwork is erected, and the upper structure construction is carried out.

[0029] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A non-floor-type construction operation platform structure comprising a lower floor (7) on which a plurality of structural columns (1) are arranged, characterized in that: It also includes the bracket (2) fixed on the side of the structure column (1), the H-shaped steel (3) is arranged on the bracket (2), a plurality of bailey beams (4) are uniformly arranged on the H-shaped steel (3), the bailey beams (4) are arranged vertically to the H-shaped steel (3), a plurality of I-shaped steels (5) are uniformly installed on the bailey beams (4), and the support frame vertical rods (6) are arranged on the I-shaped steels (5).

2. The non-suspended construction platform structure of claim 1, wherein: The structure column (1) is made of reinforced concrete column or steel column material, and a through bolt hole with a diameter greater than 1.2 times of a bolt diameter is reserved on the structure column (1).

3. The non-suspended construction platform structure of claim 1, wherein: The bracket (2) is made of a steel plate welding structure and is symmetrically installed on both sides of the structure column (1) and is connected by bolts.

4. The non-suspended construction platform structure of claim 1, wherein: The H-shaped steel (3) and the bailey beam (4) are both factory prefabricated structures and are connected by bolts.

5. The non-suspended construction platform structure of claim 4, wherein: The H-shaped steel (3) connects all the brackets (2) in the length direction of the H-shaped steel (3) itself.

6. The non-suspended construction platform structure of claim 1, wherein: At least two I-shaped steels (5) and bailey beams (4) are fixedly connected between two structure columns (1), and the I-shaped steels (5) and the bailey beams (4) are connected by bolts.

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