Alexander Taushanov

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Verified

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• PhD ME MSc
• Assoc. Prof. Dr. Eng. at University of Architecture, Civil Engineering and Geodesy

Procedures for computing the response of structures during an earthquake (or another dynamic ground motion) involves a calculation of the modal participation factor, which formula includes influence vector {r}. The definition of the influence vector is often given as a "displacement transformation vector that expresses the displacement of each stru...

Jerk, also known as jolt, is the rate of change of acceleration. It is a vector quantity and its scalar magnitude is also the third derivative of position of a body or joint of a structure. Its dimension is [length/time 3 ]. Excessive "jerky motion" may result in an uncomfortable stay in buildings, bridges, and ride on trains or trams and it should...

This paper proposes formulas and presents graphs for jerk response spectrum for a given earthquake ground motion with different damping ratios. A few variants of combined response spectrum graph are shown. All graphs include the jerk response spectrum. The fractional derivative theory was used to improve the combined spectrum representation. A para...

This paper deals with a review of existing modern seismic resistant design concepts and an interpretation of some basic steps. Attention is drawn to some ideas of performance based design and the main advantages of this approach are highlighted. The capacity spectrum method is considered together with a short theoretical background. Comparative ana...

Building structures are designed to withstand various unforeseen impacts and loads-impact, explosion, derailment, etc. The design must limit the possibility of structural failure due to an unknown cause. Shock impacts are characterized depending on the intensity and duration of the impact. Therefore, the elements of the structure can demonstrate di...

The research in the present work is aimed at determining the compressive force transmitted by a bridge crane on a supporting column of a building. The development examines the possible simplified approaches and generally accepted dependencies for determining the maximum vertical load transmitted by the bridge crane, which are given in normative doc...

В статията е разгледано развитието на обучителните процеси по дисциплините в областта на механиката в Университет по архитектура, строителство и геодезия от основаването му през 1942 г. до днес. Разгледана е промяната в съдържанието и формата на обучение през годините. Проследена е и еволюцията в средствата за обучение-от циклостилно издадените уче...

Procedures for computing the response of structures during an earthquake (or another dynamic ground motion) involves a calculation of the modal participation factor, which formula includes influence vector {r}. The definition of the influence vector is often given as a "displacement transformation vector that expresses the displacement of each stru...

In this paper the authors make attempt to see from inside the state and problems of a part of the very rich architectural and historical heritage of Bulgaria. A short review and description of the structures of some typical representatives of historical monuments: fortresses, monasteries, basilicas, churches, cathedrals and bridges are given. The p...

The author expresses a hypothesis about the resistance in SDOF mass systems, which leads to energy dissipation. The concept of a third derivative of the movement in time (jerk) and a dimensionless quantity of it is applied. On this basis, a homogeneous differential equation of motion in free vibration was compiled and solved. A comprehensive mathem...

The beam element with both built-in ends is the most commonly used one in the finite element analysis of frame structures. In the presence of integral hinges, however, a clamped-hinged element (provisionally referred as “second type element”) has to be used. In the article presented an explicit geometric matrix for the second type beam element was...