What are the technical parameters and requirements of the signal light pole?
Signal light pole, as the name suggests, is to install the pole of the signal lamp, mainly for the pole of the traffic signal lamp. How much do you know about the technical parameters and requirements of signal poles?
1. The structure size, connection mode and foundation size of various signal light poles are determined by calculation according to the size of wind force, signal light or plate surface of the setting place and the supporting mode.
(1) basic wind pressure: value according to code for load of building structures gb50009-2001.
(2) seismic intensity: according to the "China seismic intensity zoning 1990" and "building seismic fortification classification standard" gb50225-96 value, according to the results of the calculation of high quality steel, electrode, and wire, etc., the quality is in line with the corresponding national standards.
2. Flanged connection shall be adopted between the signal light pole and the foundation. The flange plate at the bottom of the column shall be fixed on the pre-embedded anchor bolt in the concrete. The quality of bolts, nuts and washers used shall meet the corresponding national standards respectively. The diameter, spacing and end spacing of bolt holes shall be in accordance with the steel structure design specification and the steel structure design manual.
3. The signal light pole column and transverse arm adopt multilateral inverted cone with reasonable force; The cross section adopts regular octagon, and the whole arm is not divided into sections within 12 meters of the cross arm, and the arm grows up to 12 meters with the splicing type. The splicing depth error is controlled within the range of 5%L(L is the design splicing value). The connection is reliable and the design is simple and elegant.
4. The welding of signal light pole adopts argon shielded welding, automatic welding submerged arc automatic welding, no welding slag, porosity and other welding defects, and the welding of important parts is carried out flaw detection and testing to meet the corresponding welding specification requirements.
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