Borjan Petreski

• Master of Science and Diploma of Imperial College in Earthquake Engineering
• Research Assistant at Saints Cyril and Methodius University of Skopje

The seismic performance of building structures is governed by the lateral stiffness which is provided by the geometrical and material characteristics of their structural elements and their arrangement in plan and elevation. In general, the procedure for designing the structures to withstand the code-prescribed lateral loads is quite straightforward...

This paper presents the procedure for remote testing of various categories of bridges, incorporating both static and dynamic assessment methodologies. The investigated structures include different types of bridges categorized by the structural system and materials, as well as different categories of bridges according to their usage. Therefore, the...

On April 3, 2024, a magnitude 7.4 earthquake, known as the 2024 Hualien Earthquake, struck offshore Hualien, Taiwan, at a depth of 15.5 km. Overall, the negative societal impacts were limited, despite varying levels of impact to the infrastructure, including power outages affecting over 308,000 households, landslides obstructing roads, bridge colla...

An Mw 7.8 earthquake occurred at a depth of 17.9 km and with epicenter coordinates 37.174°N 37.032°E near the city of Nurdağı in the Gaziantep province of Türkiye at about 4:17 AM local time on February 6, 2023. As a result of this sequence of earthquakes and aftershocks, around 28,500 buildings partially or completely collapsed, while another 66,0...

The self-centring concentrically braced frames (SC-CBF) present an innovative structural typology for improved behaviour of the steel structures to earthquake loading. Namely, the SC-CBFs present an advanced technological solution for minimization of the residual drifts at concentrically braced frames which are quite substantial following high inte...

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...

Inter‐story drifts are the most important engineering demand parameters required for the evaluation of performance of structures subjected to lateral loading. Even though the transient inter‐story drifts are usually used for the assessment and design using the codes of practice, the residual drifts often govern the economic loss in buildings. There...

The self-centring system presented in this paper is a novel damage control technique designed to improve the resilience of concentrically braced frames (CBF) under seismic action. Namely, traditional CBFs can undergo large residual drifts following an earthquake event which can limit the opportunity for cost-effective repair of the structure. Addit...

Seismic design codes seek to limit structural displacements in order to minimise damage, but no explicit consideration is usually given to the state of the structure after the earthquake, which can be critical for re-occupancy, monetary losses and the rapidity of repair. In this paper, shake table testing of single-storey self-centring concentrical...

The moment resisting frames (MRF) are one of the three main structural steel typologies used for seismic design of steel frames. They are characterized as the most ductile structural type possessing a large number of possible dissipative zones, following the fact that plastic hinges can develop both in the beams and the columns. Possessing the feat...

Rapid advancements of information technology and data digitalization have contributed to faster data collection and analysis. At the same time, datasets can be very large and may continuously grow due to data updates or additional data collection, which makes their manual interpretation and analysis impossible. A large database provides an abundanc...

Over the end of the last and beginning of this century, many isolation devices have been invented where rubber bearings are among the most frequently used isolators. The performed investigations confirmed that the actual behavior of rubber bearings under large shear strains is highly nonlinear. Therefore, in this investigation, a bilinear constitut...

The combined action of biaxial bending and axial load is very common among the reinforced concrete vertical elements, especially in the seismic prone areas and most frequently authoritative for their assessment and design. The most commonly used procedure for design is a trial method where the amount of rebar is assumed in the beginning and the cap...

This research studies an improved performance based assessment method of steel moment resisting frames (MRFs) through alternative modelling of the structure subjected to realistic earthquake loading. The improvement is evaluated through a comparison of two different modelling approaches for design and assessment of the MRFs. The initial approach fo...

This research project studies an improved method for modelling steel moment frames subjected to realistic earthquake loading, through a comparison of two different approaches for design and assessment. The initial approach for modelling the steel frame is the distributed plasticity approach using fibre discretization of nonlinear beam - column elem...

This article presents the advantages of using preloaded bolts in connections of steel structures. First we discussed the main differences between preloaded bolts and shear bolts. Then we explained the categories of shear connections and the categories of friction surfaces, along with their associated surface preparation and slip factor. To connect...