The article presents the algorithm of the step method for determining the limit loads for elastic-plastic rod systems. The development of the iterative process with the hypotheses used is given, taking into account the influence of the moment and longitudinal force on the limit state of individual sections, the lenght of the plastic deformation zones along the lenght of the rod. The advantage of the step-by-step method for determining the limit loads in rod systems in comparison with the "direct method " of A.R.Rzhanitsyn is demonstrated. The functions of forms depending on the type of section in explicit form are defined; the algorithm of tabulation of the form function is developed.
Keywords: slab and pile foundation, settlement of the building,stress-strain state,homogeneous anisotropic analog,finite element method
The problem of the impact of moving cars on the system "road structure – landslide slope"is considered. Adopted spatial continuum computational model. The inertial properties of vehicles and elements of the system "road structure - landslide slope"are taken into account.
Keywords: dynamic model, road construction, landslide slope, finite element method, nonlinear heredity theory, temperature-humidity factor
The article considers seismic conditions, seismic activity and modern standards for the design of earthquake resistant structures in Vietnam, presents the details of modeling of seismic effects on high-rise building according to the norms of Vietnam
Keywords: the earthquake resistance, the collision of tectonic plates, the peak acceleration of the soil, the method of principal coordinates, factor behavior, spectral theory of seismic stability