It is understood that in the first engineering construction, the measuring instrument for the coating thickness of the steel structure fireproof coating is: thickness gauge, in the test, the thickness gauge probe is generally pressed vertically on the surface of the coated steel component, recording and measuring The thickness gauge reading, the inspection quantity is extracted according to 30% of the number of components, generally not less than 3 pieces. Today we will come together to find out how to choose the position of the measuring point of the gage.
1. Steel structural column and beam, take a section every 1m in the longitudinal direction of the component, test the coating thickness of each surface of the component, and calculate the average value of all the measuring points as the coating thickness of the root component.
2. The truss structure and the beam are taken at intervals of 1 m in the longitudinal direction of the upper and lower chords and the web. The coating thickness of each surface of the rod is measured, and the average value of all the measuring points is calculated as the coating thickness of the root member. .
3. The top plate and the steel stair are selected by measuring 5 points per square range, and the average value of all the measuring points is calculated as the coating thickness of the member.
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