QUANTITATIVE ANALYSIS OF ADDITIONAL TEMPERATURE STRESSES IN CONTINUOUSLY WELDED RAILS: INFLUENCE OF BRIDGE EXPANSION LENGTH
In this paper, the influence of bridge expansion length on the distribution of additional temperature stresses in continuously welded rails is investigated. Using a representative railway viaduct as a case study, the effects of thermal interaction between the track and the bridge are analyzed. The research focuses on the design phase, particularly ...
By Nikola Mirković, Uroš Mirković
AUTOMATIZATION OF STRUCTURAL DESIGN OF ANEMOMETRIC GUYED MASTS USING SAP2000 MATLAB OAPI
This paper presents the application of a MATLAB-based framework that automates the modelling, analysis and design of anemometric steel guyed masts via the SAP2000 Open Application Programming Interface (OAPI). The design procedure is carried out in accordance with the current generation of Eurocode standards. The efficiency of the OAPI is demonstra...
By Miloš Jočković, Marija Milojević, Dušan Martinović, Nenad Fric, Miroslav Marjanović
OVERVIEW OF SCHOOL BUILDING CONDITIONS IN RURAL AREAS – LAZAREVAC MUNICIPALITY
Rural primary schools within the Municipality of Lazarevac represent a significant portion of the public building stock. Most of the buildings are single-storey with load-bearing masonry systems, built in the second half of the 20th century according to the technical regulations of that period, which did not seismic resistance, durability, and ener...
By Bojan Milošević, Borivoje Kostadinović, Aleksandar Šotić, Dušan Turina, Vanja Panić
REDUCING CARBON EMISSIONS THROUGH CIRCULAR USE OF WASTE GLASS IN CEMENTITIOUS MATERIALS
The use of finely ground waste cathode ray tube (CRT) glass as a partial replacement for cement directly links the principles of circular economy with the reduction of carbon dioxide emissions. Instead of ending up in landfills, glass is returned to the production cycle as a pozzolanic material, reducing the need for extracting natural resources an...
By Dušan Grdić, Nenad Ristić, Mehmet Emiroğlu, Zoran Grdić, Gordana Topličić - Ćurčić
TORSION AND WARPING CONSTANT FOR STEEL I BEAMS WITH BATTEN PLATES
A reliable calculation method for torsion constant (IT) and warping constant (Iw) of I section with batten plates is presented. As welding of the batten plates transforms the cross section from an open to a two-cell closed one, the associated torsion theory becomes rather complex. St. Venant torsion theory of thin-walled closed sections is extended...
By Petar Subotić, Mladen Muhadinović, Biljana Šćepanović, Duško Lučić
DESIGN OF NEW REINFORCED CONCRETE ARCH BRIDGE OVER THE ĐETINJA RIVER
This paper presents the design of a reinforced concrete arch bridge over the Đetinja River canyon, part of the Užice bypass route in Serbia. The 292 m long structure features a main arch span of 162 m with a rise of 23,6 m (rise-to-span ratio 1/6,86), placing the deck approximately 90 m above river level. The rationale for selecting a relatively sh...
By Novak Novaković, Milan Pandrc
A CAD-BASED REFINED ZIG-ZAG THEORY FINITE ELEMENT FRAMEWORK USING GMSH SOFTWARE
A computational framework for the structural analysis of laminated composite plates is presented. The framework combines geometry and mesh generation in Gmsh software with a Refined Zig-Zag finite element solver written by the author. The imported mesh provides the discretization of the computational domain, while the laminate definition, material ...
By Svetislav Popović, Marina Rakočević, Olga Mijušković
METHODS FOR DETERMINING MASONRY COMPRESSIVE STRENGTH: FROM EXPERIMENTS TO AI APPROACHES
The compressive strength of masonry walls represents one of the key mechanical characteristics of masonry structures. Its determination goes beyond a simple consideration of the properties of individual materials and depends on the complex interaction between masonry units, mortar, assembly geometry, and loading conditions. This paper presents a sy...
By Bojan Milošević, Žarko Petrović, Vladimir Mandić
TESTING OF MASONRY WALLS FOR STRUCTURAL CONDITION ASSESSMENT AND MASONRY STRUCTURE DESIGN
The assessment of existing masonry structures requires reliable information on their actual material properties, stress state, stiffness, and load-bearing capacity. This paper presents a methodology for the investigation and characterization of existing masonry walls, combining visual inspection, laboratory testing of masonry units and mortar, and ...
By Aleksandar Radević, Dragan Nikolić, Marko Marinković
LONG TERM DURABILITY OF CONCRETES PREPARED WITH CRYSTALLINE ADMIXTURES
Concrete is the most used construction material worldwide and material with the second greater consumption globally, just after water. However, durability of concrete is a major problem that minimizes the service life of structures. Concrete deterioration is almost always caused by reactants that penetrate the concrete matrix with water. Therefore,...
By Kosmas Sideris, Panagiota Manita