Aleksandar Zhurovski

Institute Of Earthquake Engineering And Engineering Seismology · Building Structures and material: design, analysis and testing

The impact of present building code requirements for seismic design of new buildings can readily be acknowledged, however applying regulation to existing buildings is an area less well defined. Presently, there is a diverse list of existing code references which could be interpreted to require seismic upgrades of existing structures. Unfortunately,...

Structural Health Monitoring is essential when it comes to damage detection and quantification of civil infrastructure under dynamic excitations. Lately, seismic interferometry has been frequently used for damage identification of structures under earthquake excitations. The method uses data from vibrational sensors to detect changes in travel time...

The response of structures exposed to earthquakes is mainly defined by the stiffness, capacity and ductility of the structural elements which is governed by their dimensions and the material properties. The buildings’ seismic performance is essential for their earthquake resilience especially beyond safety point defined by the building code. The ma...

The potentially high vulnerability and poor performance of the existing buildings, after past seismic events, including exploitation period has raised awareness of the need to improve their seismic performance. Repair and strengthening gives new life to existing or ageing structures that might otherwise be demolished and replaced. This paper will a...

This study is mainly focused on establishing values for damage-sensitive physical quantities that should be measured and monitored in the process of structural health monitoring (SHM) of building structures. It covers definition of limit values of these parameters for different damage states of a case study 13-storey RC building based on parametric...

Eurocodes are a set of European design standards that fully cover the basics of design in all areas of structural engineering for a wide range of structures. The implementation of Eurocodes as official design standards in North Macedonia is of great importance, with regards to providing better quality of design, as well as enabling access to a comm...

This paper presents the results obtained by testing of overpass OP1 along "Demir Kapija-Smokvica" motorway section on Pan-European Corridor X, under trial load. This testing of OP1 was part of a project that consisted testing of 5 overpasses along the section. Pursuant to the existing laws, upon competition of the construction of each newly built b...

At 03:56 local time on November 26, 2019, an earthquake with a Mw = 6.4 struck western part of Albania. The duration of the tremor lasted less than 50 s and was felt largely also in Albania's capital Tirana, and in places as far away more than 300 km northeast of the epicenter. It caused damage to many public and residential buildings in districts...

The unexpected misbehavior of buildings during the recent frequent earthquakes in Mediterranean region resulted in significant loss of human lives, injuries and economic losses due to the poor capacity of their structural systems and built-in materials to sustain seismic load. Among the lessons learned from recent earthquake in southeastern Europe...

The response of a structure to seismic loading depends on its dynamic characteristics, and on the input ground motion. For low amplitude motion, materials behave linearly but as amplitude increases, non-linear behavior starts taking place altering the dynamic properties of the structures. It is well known that periods of vibration are important cha...

Within the framework of the new traffic solutions for the central city area in Skopje, and in order to provide greater flow of vehicles on a new traffic solution for the Dame Gruev Street has been prepared. In providing conditions for realization of this traffic solution there is a traffic bottleneck at the crossing point on the street at the offic...

This paper presents an overview of the theoretical background behind obtaining modal parameters of structures using different techniques. Damping estimation using half-power bandwidth and logarithmic decrement methods is briefly described, while modal estimation using Frequency Domain Decomposition (FDD) and Enhanced Frequency Domain Decomposition...

RC buildings with masonry infills are composite structures consisting of RC bearing frames and masonry infills, which are very often inhomogenous and have a significant impact on the seismic performance of the structures. It is particularly challenging to design these buildings to achieve a satisfactory earthquake performance. Recent design practic...

Until recently the design philosophy of building structures followed sets of prescribed rules implemented in older design codes. On the other hand, modern design codes implement the latest knowledge in the form of performance-based earthquake engineering. Because of this, the level of seismic safety provided by existing RC structures is in some way...

Given the growing number of ageing buildings and the necessity of damage assessment, the need for reliable structural health monitoring (SHM) strategies is constantly increasing. Wireless sensor networks, compared to conventional cable-based systems, provide a more flexible and cost-efficient approach towards performing damage detection based on em...

This paper deals with successful development of application for signal processing and enhanced frequency domain decomposition analysis EFDD. The benefit of this application is the ability to improve the methodology and to implement some additional parameters for obtaining a more reliable result. The validation of the methodology and implemented alg...

Structural vibration testing and analysis contributes to progress in many industries, including aerospace, auto-making, manufacturing, wood and paper production, power generation, defense, consumer electronics, telecommunications and transportation. The most common application is identification and suppression of unwanted vibration to improve produ...

Earthquakes are, by definition, a sudden release of energy in the earth's crust or upper mantle resulting in generation of seismic waves that can be destructive. On the other hand, manmade constructions have been built in order to withstand all predicted impacts. Sometimes structures have to be assessed in order to determine the performance for the...

Testing of structures to understand their behavior under seismic conditions can provide an important source of information for safe and economical design and for dynamic properties of the structure. The need for testing the behavior of full scale structures under dynamic loads stems from the fact that the analytical calculations cannot account for...