How much do you know about the inspection standards for high pole lights?

2020-12-29

Nowadays, many areas have used high-pole lights. The high-pole lights have a large illumination range. They are necessary outdoor lighting street lights for squares or piers. However, many people don't understand the calculation standards of high pole light poles. Today, the high-pole lamp manufacturers will briefly talk about the inspection standards for high-pole lamp poles. There is currently no standard for the structural strength calculation of the poles of high-pole lamps in our country. Generally, it is carried out with reference to the "Code for Design of Tower Structures", "Code for Loads of Building Structures" and "Code for Steel Structure Design". The checking calculations in this section are only checking calculations for seamless steel pipe rods and welded taper rods. The strength check calculation of the lamp pole mainly considers the effect of wind on the

, and the bending stress and shear stress formed should not exceed the allowable stress of the lamp pole. However, when street lamp manufacturers design the poles of high-pole lamps, the basic wind pressure is 0.56kN/, that is, the design is based on the tenth wind speed (30m/s). The seismic intensity of light poles shall be fortified according to the seismic intensity of 8 magnitude. When the designed seismic intensity is greater than or equal to 7, the seismic intensity shall be checked. The calculation method can be the bottom shear method.
As for the requirements of seismic design, the site and foundation that are favorable for seismic resistance should be selected as far as possible, and the lamp body should be simple in shape, and the mass and rigidity should be symmetrically and evenly distributed. Try to make the center of mass and the rigidity center coincide to ensure the integrity of the structure. High-strength material. Seismic check calculations, for cylindrical structures, chimneys, water towers and high-pole lights, the bottom shear method and the approximate simplified method can be used.

It can be seen from the calculation that the external force of the high pole lamp is mainly wind load, so the calculation of wind load is the key. Under the action of wind load, all anchor bolts on the bottom flange of the light pole are sheared by the wind. Because the wind load acts on the light pole, the foundation bolts of the bottom flange of the light pole are roughly regarded as half tension and half compression .

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