出版社：Consejo Superior de Investigaciones Científicas
摘要：This paper is related to the topic developed in my RH.D. thesis. A new model is proposed to describe the non-linear behaviour of straight pin-jointed compression members. Sucti a method Is based upon obtaining the complete constitutive equations in the case of circular hollow sections. The stability functions of imperfect bars and the analytical formulation of the post-buckiing behaviour are obtained by taking the exact expression of the curvature in the integratlon of the differential equation of the elastic. The linearization of the constitutive relationships and the application of an incremental iterative model based upon the modification of the elasticity of the bars at critical point allows us to consider the non-linear analysis of the double layer space grids. The models of analysis proposed here have been applied to a wide variety of trusses with different characteristics and typologies, some examples of which accompany this paper.
