The stability analysis of sleeve stiffened pin-ended slender hollow columns of pipe or box section is performed in the present study. This is accomplished by using energy method, employing three terms in the assumed approximate deflection function. The lengthy and tedious algebraic manipulations involved in solving the relevant eigenvalue problem, necessitates employing the "MATHEMATICA" softwa...

although bearing capacity of footings on top of slopes under monotonic loadings have been investigated widely so far, safety and bearing capacity of these structures against repeated dynamic loads have not been considered well enough. in this paper, lower bound dynamic shakedown theorem in its numerical form has been employed to firstly obtain bearing capacity of strip footings on top of slopes...

Finite element method and fiber model were used to calculate the load-carrying capacity of specimens. Based on experimental theoretical analysis, simplified calculation for this kind member is proposed. It indicates that finite result relatively small, accords well with result. Circular reinforced concrete members covered steel tube presents both characteristics filled member, showing higher gr...