Tag: Bracing
Bracing for Individual Members
For an ideally straight, exactly concentrically loaded beam or column, only a small force may be needed from an intermediate brace to reduce the unbraced length of a column or the unsupported length of the compression flange of a beam. But there is no generally accepted method of calculating that force. The principal function of a…
Frame Bracing
Design of bracing to resist forces induced by wind, seismic disturbances, and moving loads, such as those caused by cranes, is not unlike, in principle, design of members that support vertical dead and live loads. These lateral forces are readily calculable. They are collected at points of application and then distributed through the structural system and delivered to…
Lateral Bracing, Portals, and Sway Frames
Lateral bracing should be designed to resist the following: (1) Lateral forces due to wind pressure on the exposed surface of the truss and on the vertical projection of the live load. (2) Seismic forces, (3) Lateral forces due to centrifugal forces when the track or roadway is curved. (4) For railroad bridges, lateral forces due to…
