Steel frame structure system
For steel frames, with the increase of the number of floors and height, in addition to bearing large vertical loads, lateral force resistance (wind load, seismic action, etc.) is required to become the main bearing characteristics of the frame. Its basic structural system is generally divided into three types: column support system, pure frame system, and frame support system. Among them, the frame support system is widely used in practical engineering. This system form uses pure steel frame horizontally, and an appropriate number of vertical column bracing are arranged longitudinally to strengthen the longitudinal stiffness, so as to reduce the amount of steel used in the frame and form a large space.