Abstract
In this paper authors discuss the impact of genetically nonlinear application of external loads on the stress-stain state and on principal vibration modes of reinforced concrete frame structures on elastic foundation. The reader will find a methodology for integrated numerical and instrumental analysis. Six examples of linear and nonlinear FEA-models calculated in SCAD Office are given in comparison.
Highlights
Assessment of the static stiffness of a building or a structure can be performed as well on the basis of dynamic characteristics [3]
Design engineers relying on expert judgment make mistakes of placement of stiffening diaphragms in the building plan
After completing the preliminary calculation of the diaphragms rigidity, taking into account the ultimate strains, and ensuring the first two bending modes of natural vibrations, as well as dynamically comfortable accelerations, the authors recommend to perform a modal analysis of the detailed spatial dynamic model
Summary
Assessment of the static stiffness of a building or a structure can be performed as well on the basis of dynamic characteristics [3]. On this example the reader will see how the genetically non-linear loads assignment affects the principal modes and periods, and the stress-strain state of structures on the rigid and elastic subsoils.
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