{'fraction_non_alphanumeric': 0.01048951048951049, 'fraction_numerical': 0.002331002331002331, 'mean_word_length': 5.110320284697509, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
ENERGY DISSIPATION BY MECHANICAL MEANS IN CONSTRUCTIONS UNDER CYCLIC LOADING

This thesis provides an analysis of strains and stresses in the proposed model for mechanical energy dissipation with and without a passive control. A numerical analysis is performed for a reinforced concrete wall of an object. The purpose of the analysis was to determine a simple way of controlling the dissipation of energy induced in the construction by earthquake loading by using a mechanical system for the energy dissipation. Introduction of horizontal forces acting on the construction under a typical earthquake loading and the subsequent numerical analysis is performed by using the SAP 2000 program. A smooth, steel reinforcement bars, positioned outside of the wall section, are proposed as the elements for the energy dissipation. The plastic deformation of the steel bars, caused by cyclic tensile loading created by horizontal displacements of the wall, enables the dissipation of the generated energy. The force distribution to steel bars also results in lower stresses in the critical section of the wall. The former presents a type of a passive steering of the construction where a system of dampers, located outside of the building section, is used as the system for a passive control of the stresses and strains induced in the construction. The numerical analysis of the wall returns the displacements caused by a gradual increase of the horizontal forces while a dynamic analysis accounts for a real earthquake loading. The outputs of the analysis are forces in the wall’s cross section including bending moments at the cantilever support and forces in steel bars of the mechanical system for the energy dissipation.