A Study on the Worst Load Point in Grillages

초록

In grillage systems, in fact, the worst deflection point is located at the center of the structure under single point load acting on the center. But the largest stresses in a simply supported grillage are not occurred for loading at the center. The largest stresses is obtained for the near enter but midway between intersections [1,2]. Therefore in this paper investigation is carried out for the structural behavior of simply supported grillages with different types. The moving vertical loads are applied moving on the span of the central transverse and vertical beams to find the worst load point. Direct stiffness method is used as an analysis tool. A single point load is applied on the points expected that occurring the most sever stress [3,4,5] and compared with test results.