Key points how to control the construction of steel structure
1 high strength bolt connection in steel structure engineering. Even the quality of high strength bolt is an important factor affecting the quality of steel structure, high strength bolt torque coefficient of the product specification is room temperature calibration value, many factors, such as: the torque coefficient of temperature, time, speed of final screw tightening, especially the influence of environment temperature, under normal circumstances, the torque coefficient the product specification is under normal temperature calibration, re calibration, at negative temperature otherwise, according to the instructions to the control value, may make the bolt tensile stress generated by insufficient, reduce the safety of structure, or cause the bolt tightening, the safety degree of influence structure.
2 negative temperature welding in winter. Winter welding and room temperature are very different, when welding to train the welders, master the rule of welding under negative temperature, and the requirements of the specification of the electrode for baking, drying after use, in order to ensure the welding quality, ensure the safety of structure.
3, the development of winter safety measures. Construction in winter the temperature is low, there are many factors that cause accidents, before construction to develop winter construction safety measures, equipped with safety protection supplies necessary, safety education for construction personnel, especially the high-altitude operations and special types of education, and strengthen the construction site management, to ensure the safety of Engineering construction.
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