INFLUENCE OF BASE SUBSTANTIAL DIFFERENTIAL SETTLEMENTS ON STRUCTURAL SYSTEMS SEISMIC STABILITY LEVEL

Authors

  • Denуs Khokhlin Kyiv National University of Construction and Architecture, Ukraine

DOI:

https://doi.org/10.18372/2306-1472.68.10909

Keywords:

base differential settlements capacity spectrum, construction system, inelastic deformations, seismic stability

Abstract

Introduction: Urgent question of base substantial differential settlements influence by different origin on building structural systems seismic stability is considered in the article. The aim of research is estimate of such influence degree. Selection of analysis method: It had been suggested to use of nonlinear static analysis by the spectrum capacity method for analysis and then this method was used. Numerical estimate of base substantial differential settlements influence on structural system seismic stability: Numerical experiment which shows degree of seismic stability reduction depending of base differential settlements level is introduced. The experiment was made on the ground of wall system model of complex masonry and also reinforced concrete constructions. Nonlinear analysis was done on the consecutive influence of base differential slumping deformations and horizontal seismic loads. Consideration of the analysis results and conclusions: Consequently it was revealed, that force influence of base substantial differential settlements is able to significant reduce seismic stability of construction systems (from 1 intensity degree down to practically completely loss of seismic stability). This fact determines necessity of accounting of base substantial differential settlements and seismic force influence combination when there is capability of occurrence both of them.   In this case, it is necessary to take into account sequential influence of the loads and also recommended using of nonlinear analysis by the principles of the capacity spectrum method. It is also necessary to specify level of inelastic deformations and damages evolution by experimentally confirmed values.

Author Biography

Denуs Khokhlin, Kyiv National University of Construction and Architecture, Ukraine

Candidate of Engineering. Senior researcher. Associate Professor at the Chair of reinforced concrete and stone structures.

Kyiv National University of Construction and Architecture, Kyiv, Ukraine.

Education: National Technical University of Ukraine "Kyiv Polytechnic Institute", Kyiv, Ukraine (2003).

Research area: civic and industrial buildings in conditions of soil base substantial differential settlements and seismic hazard probable combination, inspection and estimate of constructions and buildings technical conditions, masonry constructions and buildings.

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Published

11-11-2016

How to Cite

Khokhlin, D. (2016). INFLUENCE OF BASE SUBSTANTIAL DIFFERENTIAL SETTLEMENTS ON STRUCTURAL SYSTEMS SEISMIC STABILITY LEVEL. Proceedings of National Aviation University, 68(3), 54–61. https://doi.org/10.18372/2306-1472.68.10909

Issue

Section

AIRPORTS AND THEIR INFRASTRUCTURE