Automation of design
on earthquake resistance (PRIS 95)
 |
|
After-effects of the recent earthquakes insistently
bring us to the necessity of the perfection of the calculation methods. Complexity of
modern models of impact and structure practically excludes traditional approaches based on
simple analytic methods and hand calculation. However, the complicated digit algorithms
demand automation of calculation, which absence hamper the use available to all design
engineers. |
Created on the
theoretical and experimental research of many years decompositional algorithms and effect
models enable:
- to reduce the time necessary for calculations on earthquake resistance up to three
orders;
- to carry out realizable non-linear and many-factor analysis of the engineering objects
on personal computers of the middle class;
- to take into account the redistribution of seismic loads between vertical elements of
the building at the expense of rotation and deformations of horizontal floors in their
planes;
- to avoid paradoxes which exist in contemporary design codes for calculation of the
conformity of building models and seismic effects (consideration of unevenness of
oscillation field of soil caused by an earthquake and filtration of seismic waves
according to their lengths).
|
| PROGRAM
COMPLEX PRIS 95 is designed for automation of complicated static and dynamic
calculations (statics, seismicity, wind influence, combination of loads for calculations,
cross-sections of constructions of reinforced concrete, etc.) buildings and structures of
different purpose (civil, industrial, transport, hydrotechnic and others). It realizes
both of the already classic method of the finite elements and the original
numeral-analytic methods allowing to simplify three-dimensional models of the building and
structures and to considerably lower the order of solving equation systems what especially
matters in carrying-out of dynamic (seismic) calculations. |
 |
 |
|
APPLICATION:
for engineers of planning organizations for carrying-out of strength calculations and
automated design of constructions to be widely adopted;
for specialists, engaged in detailed numeric investigations and the development of
substantially new codes and design of the most important structures and buildings under
complex seismic, climatic, geologic, etc. conditions;
for lecturers of subjects "Structural Mechanics", SáPR, "Engineering
Constructions" in colleges and universities. |
Significant advantage of the program complex
is the possibility
- of simplified specification of the input data and visual demonstration
of the calculation results in combination with high speed analysis ;
- to get classic normative solutions (continuity of algorithms) in a particular case;
- to correct quickly projects of earthquake resistant buildings as applied to the codes of
different countries (CIS, USA, Europe, etc.) using three-dimensional models;
- to make use of the complex in the development of substantially new codes by taking into
account configurations of buildings on their earthquake resistance;
- to conduct urgent analysis of earthquake after-effects (normalization of coefficients of
reliability for buildings of different constructional schemes);
- to carry out multivariant calculations with the purpose of formation of the most
disadvantageous variant of seismic loads for specific conditions;
- estimation of seismic risk by insurance companies;
- use of the complex by developers of large integrated systems.
|
|
