![]() The critical load for a short column is affected by the strength of the material in addition to its stiffness, E. Thus, the proper formula to use is not known. Without the slenderness ratio, we cannot determine whether the column is long (Euler) or short (Johnson). In a design situation, the unknown cross-sectional dimensions make computing the radius of gyration and therefore the slenderness ratio, KL/r, impossible. If an algebraic solution is not possible, iteration can be done. For some simple shapes, such as the solid round or square section, the final dimensions are computed from the appropriate formula: the Euler formula, or the J. It is assumed that the designer for any given trial specifies items 1 through 4. ![]() It may be desirable to propose and analyze several different designs to approach an optimum for the application, so software such as this facilitates the process. The design factor, considering the application. The general shape of the column cross section (for example, round, square, rectangular, and hollow tube).Ĥ. The manner of attaching the ends to the structure that affects the end fixity.Ģ. The designer would then specify the following:ġ. In a design situation, the expected load on a column would be known, along with the length required by the application.
0 Comments
Leave a Reply. |