Radial laying method of fan-shaped floor steel bar truss floor support plate

Abstract

The application discloses a radial laying method of a fan-shaped floor steel bar truss floor support plate, which comprises the steps of deepening design and installation of the radial laying steel bar truss floor support plate. The deepening design principle comprises that the floor support plate between every two adjacent axes is taken as a design unit; the floor support plate of each unit is arranged and designed from the unit radial center line to the two side axes; and a steel plate is used to replace the floor support plate in the triangular area of the axis part. The installation steps comprise that the floor support plate of the unit is laid from the unit radial center line until all the floor support plates are installed; the steel plate in the triangular area of the axis between the units is installed, and the butt joint between the steel plate and the floor support plate; and the floor support plate or the steel plate is bolted and welded with the lap joint part of the steel beam. The application avoids the cutting of the floor support plate during on-site installation, improves the installation efficiency of the floor support plate, saves time and labor, guarantees that the floor support plates do not interfere with each other during installation, and guarantees the installation quality of the floor support plates.

Description

Technical Field

[0001] This invention relates to the field of steel truss floor decking construction technology, and more specifically, to a radial laying method for a fan-shaped floor steel truss floor decking. Background Technology

[0002] Floor decking, also known as profiled steel sheet, floor slab, or steel floor decking, is mostly made of galvanized steel sheet through roll forming and cold bending. Its cross-section is V-shaped, U-shaped, trapezoidal, or similar corrugated shapes, and it is mainly used as a permanent formwork for floor pouring.

[0003] For the radial laying of steel truss floor slabs in a spherical steel structure with a fan-shaped floor plan, conventional rectangular planar structures use parallel, narrow-gap butt joints for adjacent steel truss floor slabs, which is less likely to form irregular areas. However, for radial laying of steel truss floor slabs in a spherical steel structure with a fan-shaped floor plan, to ensure effective continuity and reliable stress distribution of the circumferential reinforcement between each unit, and to avoid the need for mutual anchoring of reinforcement due to excessively large angles between adjacent floor slabs, thus increasing workload and material waste, the radial laying of steel truss floor slabs in a fan-shaped planar structure creates a triangular area at the axial joint of adjacent units. This area requires cutting during installation, significantly increasing the difficulty of floor slab installation. Currently, there is a lack of effective technical means to solve this problem.

[0004] Therefore, developing an efficient and convenient method for radially laying fan-shaped floor steel truss floor slabs is a technical problem that urgently needs to be solved. Summary of the Invention

[0005] Due to the aforementioned defects in the existing technology, the present invention provides a radial laying method for a fan-shaped floor slab reinforced with steel truss, in order to solve the problems of large cutting volume of floor slabs, which affect appearance and engineering quality in the existing technology.

[0006] To achieve the above objectives, the present invention provides a method for radially laying a fan-shaped floor slab reinforced with steel truss, characterized by comprising the following steps:

[0007] Step S1, detailed design of radially laid steel truss floor slabs, including the following design principles:

[0008] 1a. The floor decking between each pair of adjacent axes is considered as a design unit;

[0009] 1b. The floor decking of each unit is laid out from the radial center line of the unit outwards along both sides of the axis.

[0010] 1c. Steel plates are used instead of floor decking in the triangular area along the axis.

[0011] Step S2, radial installation of steel truss floor decking, includes the following steps:

[0012] 2a. By measuring and setting out, mark the radial center line of each unit on the inner and outer circumferential steel beams;

[0013] 2b. Start laying the floor decking of the unit from the radial centerline of the unit, with the centerline of the first floor decking coinciding with the radial centerline of the unit; then install the remaining floor decking of the unit sequentially to both sides until all the floor decking of the unit is laid.

[0014] 2c. Repeat steps 2a and 2b to install the floor decking of adjacent units until all floor decking is installed;

[0015] 2d. Install steel plates in the triangular area of ​​the axis between the installation units, and make butt joints between the steel plates and the floor decking;

[0016] 2e. Stud welding is performed at the joint between the floor deck or steel plate and the steel beam.

[0017] In the radial laying layout design of the fan-shaped floor steel truss floor deck, the laying method uses steel plates to replace the floor deck in the triangular area of ​​the adjacent unit joint. The steel reinforcement in the triangular area floor deck is tied on site according to the design drawings, thereby avoiding on-site cutting of the steel truss floor deck and greatly reducing the on-site floor deck installation workload.

[0018] Preferably, the steel plate is trapezoidal and has a thickness of 4 mm.

[0019] Preferably, the floor decking comes in two types, one long and one short, which can be selected according to the structural dimensions.

[0020] Preferably, in step S2, the spacing of the stud welding at the joint between the floor deck and the steel beam is 200mm.

[0021] Compared with the prior art, the above invention has the following advantages or beneficial effects:

[0022] (1) Avoid cutting the floor decking during on-site installation, improve the efficiency of floor decking installation, and save time and effort;

[0023] (2) Ensure that the floor decking does not interfere with each other during installation, and ensure the quality of floor decking installation;

[0024] (3) The design is reasonable and highly operable.

[0025] This invention discloses a radial laying method for a fan-shaped floor slab reinforced with steel truss, including detailed design and installation steps. The detailed design principle includes treating the floor slab between each pair of adjacent axes as a design unit; the floor slabs of each unit are laid out from the radial centerline of the unit outwards towards both axes; the triangular areas along the axes are replaced with steel plates instead of floor slabs. The installation steps include laying the floor slabs of the unit starting from the radial centerline until all floor slabs are installed; installing the steel plates in the triangular areas along the axes between units, with butt joints between the steel plates and the floor slabs; and stud welding the floor slabs or steel plates to the steel beams at their overlaps. This invention avoids cutting the floor slabs during on-site installation, improving installation efficiency and saving time and labor; it also ensures that the floor slabs do not interfere with each other during installation, guaranteeing the quality of the floor slab installation. Attached Figure Description

[0026] The invention, its features, shape, and advantages will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings. Like reference numerals denote like parts throughout the drawings. The drawings are not drawn to scale; their focus is on illustrating the gist of the invention.

[0027] Figure 1 This is a plan view of the radial layout of the fan-shaped floor steel truss floor deck slab according to the present invention;

[0028] Among them, 1 is the floor deck, 2 is the steel plate, 3 is the outer circumferential steel beam, 4 is the radial steel beam, 5 is the secondary beam, and 6 is the steel column. Detailed Implementation

[0029] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the present invention.

[0030] Example

[0031] Taking the installation of steel truss floor decking on floors 5-19 of the Nanxun Ancient Town Sun Hotel project as an example, a radial laying method for fan-shaped steel truss floor decking is adopted, including the following steps:

[0032] Step S1, as follows Figure 1 As shown, the detailed design of radially laid steel truss floor slabs includes the following design principles:

[0033] 1a. The floor decking between each pair of adjacent axes is considered as a design unit;

[0034] 1b. The floor decking of each unit is laid out from the radial center line of the unit outwards along both sides of the axis.

[0035] 1c. The triangular area along the axis is replaced with steel plate 2 instead of floor decking;

[0036] Step S2, radial installation of steel truss floor decking, includes the following steps:

[0037] 2a. By measuring and setting out, mark the radial center line of each unit on the inner and outer circumferential steel beams 3;

[0038] 2b. Start laying the floor decking of the unit from the radial centerline of the unit, with the centerline of the first floor decking coinciding with the radial centerline of the unit; then install the remaining floor decking of the unit sequentially to both sides until all the floor decking of the unit is laid.

[0039] 2c. Repeat steps 2a and 2b to install the floor decking of adjacent units until all floor decking is installed;

[0040] 2d. Install steel plates in the triangular area of ​​the axis between the installation units, and make butt joints between the steel plates and the floor decking;

[0041] 2e. Stud welding is performed at the joint between the floor deck or steel plate and the steel beam; the steel beam includes radial steel beam 4, secondary beam 5, etc.

[0042] When designing the radial laying layout of the fan-shaped floor steel truss floor deck, the laying method uses steel plates to replace the floor deck in the triangular area at the junction of adjacent units, and the floor steel reinforcement in the triangular area is tied on site according to the design drawings.

[0043] In this embodiment, the steel plate is trapezoidal and 4mm thick. The floor decking comes in two types, one long and one short, which can be selected according to the structural dimensions. In step S2, the spacing of the studs welded at the overlap between the floor decking and the steel beam is 200mm.

[0044] In summary, this invention provides a radial laying method for a fan-shaped floor slab reinforced with steel truss, including steps such as detailed design and installation of the radially laid steel truss floor slab. The detailed design principles include treating the floor slab between each pair of adjacent axes as a design unit; arranging the floor slabs of each unit from the radial centerline outwards along both axes; and using steel plates instead of floor slabs in the triangular areas along the axes. The installation steps include laying the floor slabs of the unit starting from the radial centerline until all floor slabs are installed; installing the steel plates in the triangular areas along the axes between units, with butt joints between the steel plates and the floor slabs; and stud welding at the overlaps between the floor slabs or steel plates and the steel beams. This invention avoids cutting the floor slabs during on-site installation, improving installation efficiency and saving time and labor; it also ensures that the floor slabs do not interfere with each other during installation, guaranteeing the quality of the floor slab installation.

[0045] Those skilled in the art should understand that variations can be implemented by combining existing technology with the above embodiments, which will not be elaborated here. Such variations do not affect the essence of the present invention, and will not be elaborated here either.

[0046] The preferred embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and the devices and structures not described in detail should be understood as being implemented in a conventional manner in the art. Any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention using the methods and techniques disclosed above, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the present invention. This does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the present invention's technical solutions still fall within the protection scope of the present invention.

Claims

1. A method for radially laying a fan-shaped floor slab reinforced with steel truss, characterized in that: Includes the following steps: Step S1, detailed design of radially laid steel truss floor slabs, including the following design principles: 1a. The floor decking between each pair of adjacent axes is considered as a design unit; 1b. The floor decking of each unit is laid out from the radial center line of the unit outwards along both sides of the axis. 1c. Steel plates are used instead of floor decking in the triangular area along the axis. Step S2, radial installation of steel truss floor decking, includes the following steps: 2a. By measuring and setting out, mark the radial center line of each unit on the inner and outer circumferential steel beams; 2b. Start laying the floor decking of the unit from the radial centerline of the unit, with the centerline of the first floor decking coinciding with the radial centerline of the unit; then install the remaining floor decking of the unit sequentially to both sides until all the floor decking of the unit is laid. 2c. Repeat steps 2a and 2b to install the floor decking of adjacent units until all floor decking is installed; 2d. Install steel plates in the triangular area of ​​the axis between the installation units, and make butt joints between the steel plates and the floor decking; 2e. Stud welding is performed at the joint between the floor deck or steel plate and the steel beam.

2. The radial laying method of a fan-shaped floor slab reinforced with steel truss as described in claim 1, characterized in that, The steel plate is trapezoidal and 4mm thick.

3. The radial laying method of a fan-shaped floor slab reinforced with steel truss as described in claim 1, characterized in that, The floor decking comes in two models, one long and one short, which can be selected according to the structural dimensions.

4. The radial laying method of a fan-shaped floor slab reinforced with steel truss as described in claim 1, characterized in that, In step S2, the spacing of the stud welding at the joint between the floor deck and the steel beam is 200mm.

Images