What are the quality control measures for steel structure engineering（ Steel structure engineering quality)

If we want the quality to reach the standard, we should pay attention to our production and production methods. If we don't do well, it will affect our results. The same is true of steel structure engineering. What are the quality control measures for steel structure engineering?

(1) Improve welding quality

Welding is an important work in steel structure construction, and its level directly affects the quality and safety of the project. In order to improve the quality of welding construction, we should pay attention to the standardization of welding work. Before welding, the welding engineer shall prepare the welding procedure qualification and preside over the qualification to ensure that the welding materials, welding equipment and welding methods meet the construction requirements. Construction technicians are required to work with certificates and strengthen the training and assessment of welders. Ultrasonic flaw detection shall be adopted for non-destructive testing of welds after welding, and there shall be no welding quality problems such as air hole, slag inclusion, crack, arc scratch, incomplete penetration and so on.

(2) Ensure installation accuracy

The steel structure shall be installed in a reasonable construction sequence and in strict accordance with the drawings. Before installation, check the model and size of steel column, the model and diagonal brace of steel beam, check the quality of level gauge, theodolite, total station, crane and other instruments and equipment, and recheck the size, elevation and of foundation axis. During installation, pay attention to the quality control such as the verticality of the column, the elevation of the shoulder beam, and the displacement of the central positioning axis to ensure that the deviation is within the allowable range and that the installation position of high-strength bolts is accurate and tightly fixed.

(3) Pay attention to anti-corrosion engineering

Due to temperature, humidity and other environmental factors, steel structures are prone to chemical corrosion and electrochemical corrosion. If effective anti-corrosion measures are not taken, the quality and safety of steel structure will be seriously affected. Remove the burrs, oil stains and other impurities in the steel structure welds in time, repair the paint damage on the steel surface caused by the installation process, avoid deepening the corrosion degree and expanding the scope, remove the rust manually or mechanically on the steel members regularly, and apply the thickness and times of anti-corrosion coating according to the design requirements to ensure the quality of anti-corrosion engineering.