New issue alert

New Issue Released: Journal of Structural Engineering & Applied Mechanics

Volume 8, Issue 3

We are pleased to announce the publication of the latest issue of JSEAM, presenting state-of-the-art research across structural engineering and applied mechanics. This issue brings together contributions on sustainable construction materials, model validation, sensor optimization, and seismic performance of large infrastructures.

???? Highlights from this issue include:

1. Sustainable Composite under High Temperatures

   • Development and testing of SIFGEO, a novel composite combining geopolymer concrete (GPC) and slurry-infiltrated fiber concrete (SIFCON).

   • Performance was assessed at 200 °C, 400 °C, and 600 °C with various binder additives (silica fume, metakaolin, rice husk ash).

   • Results show compressive strength up to ~62 MPa and flexural strength of ~22 MPa at ambient temperature, with clear correlations between strength and fracture energy.

2. Finite Element Modeling for Seismic Assessment

   • A four-story reinforced concrete structure was modeled and validated via operational modal analysis.

   • While the theoretical model predicted a fundamental period of 1.220 s, field tests showed 0.240 s — highlighting the critical influence of infill walls.

   • Neglecting these contributions can lead to seismic load estimations more than five times higher than reality.

3. Optimal Sensor Placement in Composite Beams

   • Laboratory studies on steel–timber composite beams explored how to reduce sensor count without losing accuracy in modal identification.

   • The Effective Independence (EFI) method optimized sensor locations, and EFDD was used for parameter extraction.

   • Findings demonstrate that fewer strategically placed sensors can still ensure reliable identification of structural dynamics.

4. Damping Ratios in Arch Dams under Earthquakes

   • Real earthquake data (Mw 4.0–5.0) from the 275 m high Yusufeli Arch Dam were analyzed between 2022–2025.

   • Using a single sensor, damping ratios were determined to range between 0.8% and 4.7% (average ~1.95%).

   • Results suggest that ~1–2% damping ratios are sufficient for low-amplitude vibrations, while stronger shaking may increase damping.

Closing Note

This issue emphasizes sustainable material innovation, experimental validation of models, efficient sensor use, and seismic monitoring of critical infrastructure. We invite readers, researchers, and practitioners to explore the full articles and benefit from the latest findings in structural engineering and applied mechanics.

???? Access the full issue here