p5 outdoor led display.Wind resistant design of street lamp poles

　　The parameters of street lights are as follows:

　　Battery panel inclination angle A=16o, lamp pole height=5m

　　Design and select the width of the weld seam at the bottom of the lamp pole δ = 4mm light pole bottom outer diameter=168mm

　　The surface where the weld seam is located is the damaged surface of the lamp pole. The distance from the calculation point P of the resistance moment W on the failure surface of the lamp pole to the line of action of the battery panel load F on the lamp pole is

　　PQ=[5000+(168+6)/tan16o] × Sin16o=1545mm=1.545m. So, the moment of action of wind load on the failure surface of the lamp pole M=F × 1.545.

　　Based on a design maximum allowable wind speed of 27m/s, 2 × The basic load of the 30W dual head Changsha photosynthetic solar street lamp panel is 730N. Considering a safety factor of 1.3, F=1.3 × 730=949N.

　　So, M=F × 1.545=949 × 1.545=1466N. m.

　　According to mathematical derivation, the resistance moment of the circular failure surface W=π × (3r2 δ+ 3r δ 2+ δ 3) .

　　In the above equation, r is the inner diameter of the ring, δ It is the width of the circle.

　　Resistance moment of failure surface W=π × (3r2 δ+ 3r δ 2+ δ 3)

　　=π × (3) × eight hundred and forty-two × 4+3 × eighty-four × 42+43)=88768m3

　　=88.768 × 10-6 m3

　　Stress caused by the moment of action of wind load on the failure surface=M/W

　　=1466/(88.768 × 10-6)=16.5 × 106pa=16.5 Mpa<<215Mpa

　　Among them, 215 Mpa is the bending strength of Q235 steel.

Read recommendations:

outdoor tv screens wholesale

P3 soft LED module

P5.95 outdoor LED display

The use of small pitch LED display screens in business and education!outdoor led digital sign board

Introduction to the installation mode and method of LED display