Advantages of steel structure canopy construction

2022-07-22
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The steel structure canopy is a kind of building built between two buildings to connect the two buildings as the aisle canopy, or set above the canopy at the entrance and exit of the building or the top balcony to prevent falling objects from falling from high altitude

the steel structure canopy is also common everywhere in reality. The steel structure canopy is formed in the solid frame of the steel structure by using glass and other materials. It is transparent, beautiful and high-strength. At present, it is widely used in the entrances and exits of office buildings, residential areas, shopping malls, underground garages, etc. So what are the advantages of steel canopy? The steel structure canopy has changed the physical properties of the original glass and other materials, and has high requirements for construction and installation, which requires a perfect construction scheme. Now let's take a look at the construction scheme of steel structure canopy

advantages of steel structure canopy

1. Seismic resistance: most of the ground floor communities or villas are sloped roofs. This kind of roof mechanism uses a triangular roof truss made of cold-formed steel structural parts. After sealing the structural plates and gypsum boards, the light steel components form a very solid & quot; Plate rib structure system "e;, This kind of structural system has a very good effect of earthquake resistance and horizontal load resistance

2. Wind resistance: the steel profile structure building has relatively light weight, high strength and good overall rigidity, which can resist the wind of 60-70 meters per second and play a better protective role

3. Thermal insulation: it mainly adopts thermal insulation materials, which has a good function of thermal insulation

4. Comfort: the steel structure adopts an efficient energy-saving system, which has excellent breathing function, so that the dry humidity of the air in the house can be adjusted, and the roof has good ventilation effect

construction scheme of steel structure canopy

1. Processing preparation and blanking

set out according to the construction drawing, reserve welding shrinkage and processing allowance during setting out and marking off, and make a template according to the setting out. Steel correction: steel must be corrected before blanking, and the corrected deviation value should not exceed the allowable deviation value specified in the specification, so as to ensure the quality of blanking. The hot processed section steel shall be hot processed first, and then the hole shall be numbered after cooling. Steel plate embedded parts and other parts are cut, drilled and sprayed with anti-corrosion paint

2. Measurement and setting out: measure the elevation center line of embedded parts according to the civil elevation datum line, and check the elevation deviation and left-right deviation of embedded parts. Sort out the results and determine the adjustment and treatment scheme for the separation of embedded parts. Snap an ink line along the outer edge of the floor to determine the top elevation line of the embedded parts

3. Installation treatment of embedded parts: locate the installation position of embedded parts and drill for installation. The position of embedded parts shall be accurate and firmly buried. The elevation deviation shall not be greater than 9mm, and the left and right displacement shall not be greater than 20mm

4. Suspension arm installation and welding: the suspension arm is installed by welding. It is necessary to check the welding nodes and adjust the design slope of the suspension arm. Welding can be carried out only after it is accurate. After one suspension arm on the side is correct, install the other suspension arm, and spot weld after it is in place. Then take the two suspension arms as the benchmark, pull out the highest and lowest elevation lines of the suspension arms, and weld the remaining suspension arms one by one. And weld seamless steel pipes. When the section steel needs to be lengthened, the joint shall be welded and straightened first. When using profile steel joints, in order to make the joint profile steel close to the steel plate embedded parts, the edges and corners should be removed according to the design requirements. The butt weld shall be welded with run on plates at both ends of the weld, whose material and groove type are the same as those of the weldment. After welding, it shall be cut off by gas cutting and ground flat

5. Calibration inspection: after the suspension arm is installed, first check the quality of the on-site connection parts. The installation quality of the suspension arm mainly checks the non perpendicularity of the vertical surface of the suspension arm; The side of the vertical surface of the suspension arm is sagged under pressure; Suspension arm slope. Ensure that the suspension arm meets the design stress state and overall stability requirements

6. Connecting the stressed cable: locate the reference line and elevation line of the pull rod, install the embedded parts as required, and weld the handrail

7. Installation and welding of stainless steel glass claw: snap the vertical and horizontal lines and design elevation according to the design size, clamp with clamps, conduct positioning and spot welding, and weld the glass claw base after assembly

8. Rust prevention and painting treatment: slag and splash should be removed, and the surface of stainless steel parts should be sprayed with white paint for many times. The coating and film thickness shall meet the design requirements or construction specifications. The paint on the inner side of the limb steel shall not be missed

9. Processing, manufacturing and installation of laminated glass: determine the size of the glass according to the design requirements and the measured size, as well as the horizontal and vertical positions of the glass, and the manufacturer shall process and manufacture it. Install the stainless steel glass claw, and adjust the glass after it is temporarily fixed. The adjustment standard is horizontal, vertical and flat. The deviation shall not exceed the specified deviation

10. Adjustment inspection: conduct overall adjustment inspection on the point glass, and adjust the horizontal, vertical and horizontal standards. The deviation shall not exceed the specified deviation

11. Glue up and down: fully clean the gap between the glasses, and there should be no water, oil stain, paint, rust, cement mortar, dust, etc. Thoroughly clean the bonding surface and dry it. To adjust the depth of the seam, avoid sticking on three sides. Stick protective tape on both sides of the seam to protect the glass from contamination. Apply sealant up and down at the same time. After injecting glue, smooth the surface of the glue joint and remove the excess glue. After glue injection, tear off the protective paper and wipe the glass with solvent if necessary. The glue shall not be stained with dust and scratches before it is completely hardened

12. Repair inspection: local repair inspection

13. Glass cleaning: after confirming that there is no problem in all parts, clean the glass dust as a whole, wipe the glass with solvent if necessary, and wait for acceptance

editor's summary: the relevant information about the advantages of steel structure canopy and the construction scheme of steel structure canopy is introduced here. I hope this article will be helpful to you. If there is anything else you don't understand, you can leave a message to Xiaobian below, and we will answer it for you as soon as possible

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