No 2 (2015)

Le Benin est admis dans le reseau geodesique mondial grace a ses stations permanentes. Les conflits fonciers au Benin sont croissants et l'installation des stations permanentes visent essentiellement le renforcement des capacites cartographiques et topographiques des professionnels du secteur public et prive. Les objectifs poursuivis sont : amener tous les acteurs du foncier au Benin a travailler dans un systeme unique de reference, favoriser l'enregistrement rapide des droits a la propriete, etablir une base de donnees fiable. Vu l'evolution des reseaux Gsm, le reseau de la station permanente du Benin peut etre mis a jour afin de faire de ce reseau, un reseau GNSS RTK.

The elastic medium weakened by a periodic system of circular holes filled with washers from homogeneous elastic material is considered. The surface of circular holes is covered by a cylindrical film. Medium (binder) is weakened by two periodic systems of rectilinear cracks with bonds between the faces in end zones. General representations describing the class of problems with periodic stress distribution out circular holes and cracks under longitudinal shear are constructed. The analysis of cracks limit equilibrium using the end zone model is performed based on nonlocal fracture criterion with force condition of the crack tip advance and deformation condition for determination of the crack end zone face advance.

This article is the continuation of the previous publicationsof the authors whicharededi- cated to calculations of the instantaneous non-linear deformations of concrete. This theory is the essential elaboration of themethodsfor calculating sustained resistance of the building structures. In this theory the instantaneous non-linear deformations of concreteare practically exactlytook into account

The article considers the model problem of the bifurcation stability of tall objects on de- formable foundation slab interacting with the base model based on the half-plane bounded on the basis of the Navier equations of equilibrium

In the results of analyze of the experience exploitation the multistory innovations diplo- matic buildings are exposed the more frequently destructions in molding reinforced concrete structures of diplomatic buildings

The technique of definition of critical loads, leading to the loss of stability of anisotropic rectangular articulated supported plates is presented. As an example, stability problem of the rectangular anisotropic plate with compression forces in the middle surface in one direction is researched

This article presents an experimental study of the mechanical characteristics of new type fine polymer composites - injection artificial stone, the development of techniques and experi- ments for the characterization of fracture toughness of this material.