The article presents a description of the computational model and the results of modeling the stress-strain condition of cable-stayed structures. The calculations are performed in a geometrically nonlinear formulation.

Keywords: stress-strain condition, cable-stayed structure, geometric nonlinearity, flexible cable system, spatial framed system

The article discusses the most common schemes of direct integration of equations of motion in engineering practice, and gives basic formulas. An analysis of the accuracy of these methods is made on the example of solving a test problem

Keywords: structural dynamics, structural mechanics, direct methods for integrating equations of motion, Newmark's method, Habolt's method, Wilson's method

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 deals with the mechanical and mathematical model of deformation and development of zones of plastic deformations in landslide slopes under static and dynamic influence taking into account physical and geometrical nonlinearity.

Keywords: landslide slope, plastic deformation zone, dynamic impact, physical nonlinearity, geometric nonlinearity, stress deviator, stress tensor, deformation of the soil medium

The article deals with creep in structural mechanics. Systems of non-linear resolving equations for different types of creep kernels are written. An algorithm for solving the problem of nonlinear heredity is considered.

Keywords: creep, nonlinear heredity, creep kernel approximations, finite elements method, exponential-type kernels, least-squares method, collocation nodes

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

In the article it describes the main disadvantages of modern methods of modeling of reinforced landslide slope behavior, proposed in our research approach and the results of calculation made in the developed software complex "Polus-W"

Keywords: reinforced landslide slope, limit state, finite element method, a stepper method, a continuous system, calculation

The article deals with the direct and alternative forms of nonlinear heredity hypothesis. A relation between the nuclei produce relaxation and direct and alternative formulations. The algorithm for solving the problem of small elastic-plastic deformations in view of the heredity material finite element method.

Keywords: nonlinear heredity, integral, function, creep kernel, theory of elasticity, strain, relaxation, creep, stress, finite element method

In design and manufacture recently interest to a solving of problems of fluid-structure interaction  is constantly incremented. MSC.Dytran has opportunities of calculation of fluid-structure interaction. MSC.Dytran has found application in different fields for example in general safety analysis.In this article algorithms of fluid structure interaction , used in MSC.Dytran, are described. Analysis of one-contour geodetic domes under blast loads are described.

Keywords: visualization, computational model, geodetic dome, numerical modelling, blast load, pressure, stress.

A stability problem of milling process is under consideration. A novel analytical tool is presented to assess the optimal cutting parameters which provide a chatter free machining. Chatter instability is broadly studied in the literature. However, the problem of simultaneous optimization of radial and axial depths of cut is kept out of scope. To describe the optimization method a single-degree-of-freedom model of milling process is investigated as well as corresponding equation of motion and function of cutting force. A unified delay-differential equation is proposed. A theorem of asymptotic stability is suggested. Suggested optimization technique allows to create a diagram of radial and axial depth-of-cut dependence.  As shown, there exists an extremum of function of axial and radial depth-of-cut dependence.  

Keywords: chatter, stability, delay-differential equation, oscilations, self-excited vibrations, optimization

The question of influence of low temperatures on durability of a ground is considered at chemical fastening. Laboratory researches of a ground after from fastening by a solution of the liquid glass, sustained are lead at low temperatures of storage.

Keywords: Weak ground, chemical fastening, durability of a ground, low temperatures

Features of a site of construction of constructions of seaport of Taman are considered. The settlement scheme of influence of new construction of point of loading on an existing complex of tanks is proved. The final and element model of a coastal zone with an arrangement of underground designs of existing and port constructions under construction is constructed. Results of calculation intense the deformed condition of the soil massif and construction designs are given.

Keywords: the pile bases, the soil basis, modeling, a deposit, intense the deformed condition.

In work infinitesimal bendings surfaces of positive curvature with edge, subordinates on edge of external communication of the mixed type are studied. It is established quasicorrectness such external communication provided that the vector field belongs to a surface

Keywords: a surface of positive curvature, infinitesimal bendings, a field of displacement, a field of rotations, own vector field, modelling problem

This article discusses the definition of the bearing capacity of piles to strengthen the base of the building, with the considering differential settlement, with formulation of a  nonlinear problem of a residential building in Belovo, Kemerovo region. These results were used at develop methodology for restoration of buildings and structures on the basis of monitoring  

Keywords: differential settlement, bearing capacity of piles, physical nonlinear formulation, finite element method