Publisher: Supplier of LED Display Time: 2022-04-06 17:03 Views: 283
LED sky screen is a special type of LED display, which is generally built in prosperous commercial centers and crowded areas. Because of this, the quality and safety of the LED sky screen is particularly important. So in order to ensure the safety of the LED sky screen, what testing work needs to be done? Next, I will share it with you.
Check the cracks at the connection between the steel column and the ground of the LED sky screen project, check whether there are settlement cracks, deformation and displacement at the connection between the concrete-filled steel tube column and the ground of the LED display screen; check whether the upper structure of the display screen works normally and whether there are obvious Inclination, displacement and cracks caused by settlement.
Investigate the layout of LED sky screen components, and use steel tape measure, vernier caliper, ultrasonic thickness gauge, etc. to extract 8 concrete-filled steel tubular columns and 8 pipe truss members from the LED sky screen to measure the cross-sectional dimensions of the measured components. meet the design requirements.
The prismless total station is used to extract 8 steel column members from the LED sky screen, and the bending sag test and verticality test are carried out respectively to see if they meet the requirements in the "Code for Acceptance of Construction Quality of Steel Structure Engineering" (GB50205-2001) .
The TT260 cladding thickness gauge was used to extract 30 pipe truss members from the LED sky screen, and the thickness of the dry paint film of the anti-corrosion coating on the surface of the pipe truss truss members was tested. In the Code for Acceptance and Acceptance of Steel Structure Engineering Construction Quality (GB50205-2001): the outdoor should be 150μm, the indoor should be 125μm, and the allowable deviation is -25μm.
The digital display ultrasonic flaw detector is used to extract 48 butt welds and related line welds from the LED sky screen to conduct weld quality inspection.
Check the appearance quality, damage and leakage of the LED sky screen, mainly including corrosion of connectors, wrinkled skin of steel components, sagging, peeling and rusting, as well as cracks and deformation.