Although the postsocialist construction of large shopping facilities had significant implications on the urban structure of Central and Eastern European cities, the complex spatial, functional, and social relations between shopping centers and settlement centers at the local level have not been fully explained. This paper addresses this issue by exploring the center of Medijana municipality in the city of Nis, Serbia and the impact of two shopping centers in its restructuring. The compatibility of shopping centers with a district/neighborhood center is assessed on the basis of functional, spatial, and socioeconomic criteria, for which a set of measurable indicators is established: diversity and functional integration, design and physical integration, survey data on the use of shopping centers and perception of users, and the economic performance of shopping centers. Despite the significant spatial and functional transformations of the Medijana center caused by construction of the shopping centers, the results indicate their low compatibility. Furthermore, the findings confirm the need for improving the quality of the social life in this urban center. Research identifies those key elements of urban design that integrate shopping centers into the central urban fabric: (1) diversity and integration of uses, (2) high densities, (3) well-designed public space, and (4) established pedestrian links.
15 October 2022 in Tehnicki vjesnik - Technical Gazette
Regular surveillance, data acquisition, and visual observation of high embankment dams are extremely important for the stability analysis of these structures. The stability issues that could occur during a dam's lifetime are mainly related to slope i...
The use of welded structural hollow sections in civil engineering is relatively new. Design of connections in steel structures with welded structural hollow sections requires a more specified approach, compared to traditional connections achieved with gusset plates. Stress and local deformations at the connection area are non-linear and very complex. This paper presents the application of non-linear numerical analysis for the determination of the ultimate bearing capacity of “Y” connections. In the analysis, a non-linear material model was applied. In order to validate the applied method of steel modelling, comparative analysis of the analytically and numerically determined ultimate bearing capacity with the experimentally obtained results has been conducted.
5 October 2021 in Tehnicki vjesnik - Technical Gazette
Dam safety and potential failure is one of the issues with the highest risk in water resources management. The dam slope stability is adversely influenced by the natural seepage process in the dam. Thus, monitoring of the pore and total...
Accurate representation of short-term reservoir water-level dynamics is essential for operational analysis and scenario-based assessment under prescribed inflow–outflow conditions. In many practical applications, physically based modelling is limited by incomplete process knowledge, unavailable boundary conditions, or insufficient temporal resolution of input data. This study presents a data-driven framework for hourly conditional simulation of reservoir water level based on a hybrid Conv1D–LSTM architecture. The model learns nonlinear relationships among hydraulic forcing, operational control, and system state from historical observations, and is evaluated in a recursive multi-step simulation (rollout) mode to reflect its intended use and capture error accumulation over time. A systematic analysis of input sequence length and activation function is performed to identify a robust model configuration. On the test set, the selected configuration (L=24, GELU) achieved RMSE = 0.1057 m, MAE = 0.0881 m, and R² = 0.972 in rollout evaluation. The proposed framework is designed for scenario-based simulation rather than one-step deterministic forecasting, enabling rapid operational screening of alternative inflow–outflow regimes. Unlike many previous studies that emphasize one-step predictive accuracy, this work explicitly assesses model stability in recursive multi-step simulation, which is more relevant for reservoir scenario analysis.
U radu su prikazani rezultati analize postojećeg stanja male zemljane brane „Popova“ kod Blaca. Istraživanje je obuhvatilo geotehničke i hidrotehničke aspekte objekta, sa posebnim akcentom na pojavu klizišta na uzvodnoj kosini, degradaciju kosina usled erozionih procesa, zasutost prelivnog sistema i nefunkcionalnost temeljnog ispusta. Na osnovu raspoložive tehničke dokumentacije i terenskih opažanja izvršena je identifikacija mogućih uzroka nastalih deformacija i oštećenja, kao i procena njihovog uticaja na stabilnost tela brane i bezbednost akumulacije. U radu je data ocena postojećeg stanja objekta, funkcionalnosti evakuacionih organa i mogućnosti primene sanacionih mera u realnim uslovima eksploatacije. Rezultati sprovedene analize ukazuju na značaj adekvatnog izbora materijala, kontrole kvaliteta pri ugradnji i sistematskog održavanja u cilju obezbeđenja dugoročne stabilnosti i funkcionalne pouzdanosti malih zemljanih brana.