The method of calculations of a thick plate on the two-parameter layered foundation by the finiteelement method is presented. The numerical model allows to add a few (number of) foundationlayers. The expressions for the element stiffness matrices of the foundation are based on 18-nodezero-thickness interface elements. For modelling of thick plates the 9-node Mindlin element of theLagrange family is used. The formulation of the problem takes into account the shear deformation ofthe plate and unilateral contact conditions between plate and foundation. The tensionless characterof the foundation is achieved by removing from the global stiffness matrix the appropriate partof foundation stiffness attached to the node being in the separation stage. The advantages of theproposed algorithm are illustrated by numerical examples.

Społeczeństwo obywatelskie nie przestaje być przedmiotem uwagi mediów i polityków, dyskutowane pod każdym względem: politycznym, narodowym, społecznym. Można wobec tego zadać również pytanie, jaki ewentualny wpływ na architekturę, a szerzej – estetykę naszego środowiska, może mieć przemiana zwykłego homo sapiens w obywatela? Jeśli w ogóle, to czym będzie się różniła urbanistyka i architektura społeczeństwa obywatelskiego od tego co widzimy obecnie. Czy można opisać estetykę społeczeństwa obywatelskiego? W końcu: jaka jest relacja obywatelskości, architektury, estetyki i krajobrazu?

The internal forces in stiffeningwalls are usually determining by numerical methods. Extreme values of forces and displacements can be achieved without significant problems. The numerical model is always labour-intensive; therefore, it is not used for single-family or multi-family buildings with a simple wall layout. To calculate efficiently internal forces in such walls uses an analytical model. Eurocode 6 (prEN 1996-1-1: 2019) does not provide specific guidelines for determining geometrical characteristics and procedures for calculating the values of internal forces in the stiffening walls. The use of numerical methods and other reliable methods was allowed. The paper presents the adaptation of the total stiffness method to determine internal forces in a building with a simple wall system. The method was based on dividing the masonry wall with openings into pillars, lintels, bottom sprandels and flanged walls. The analytical results were compared with linear-elastic FEM calculations. It has been demonstrated that flexural stiffness, shear stiffness and localization of rotation centre (RC) had a crucial impact on masonry structure.