A5017149400- Structural Health Monitoring Techniques
- Geophysics and Sensor Technology
- Advanced Fiber Optic Sensors
- Seismic Waves and Analysis
- Optical measurement and interference techniques
- Ultrasonics and Acoustic Wave Propagation
- Structural Engineering and Materials Analysis
- Wind and Air Flow Studies
- Structural Engineering and Vibration Analysis
- Rock Mechanics and Modeling
- Structural Response to Dynamic Loads
- Non-Destructive Testing Techniques
- Vibration and Dynamic Analysis
- Geotechnical and Geomechanical Engineering
- Meteorological Phenomena and Simulations
- Landslides and related hazards
- Industrial and Mining Safety
- High-pressure geophysics and materials
- Railway Engineering and Dynamics
- Tree Root and Stability Studies
- High-Velocity Impact and Material Behavior
- Mechanical and Optical Resonators
- Geotechnical Engineering and Analysis
- Lightning and Electromagnetic Phenomena
- Seismology and Earthquake Studies
Opole University of Technology
2013-2024
Interest in measuring displacement gradients, such as rotation and strain, is growing many areas of geophysical research. This results an urgent demand for reliable field-deployable instruments these quantities. In order to further establish a high-quality standard strain measurements seismology, we organized comparative sensor test experiment that took place November 2019 at the Geophysical Observatory Ludwig-Maximilians University Munich Fürstenfeldbruck, Germany. More than 24 different...
Research Article| December 07, 2016 Rotational Ground‐Motion Records from Induced Seismic Events Zbigniew Zembaty; Zembaty aOpole University of Technology, Faculty Civil Engineering, ul. Prószkowska 76, 45‐758 Opole, Polandz.zembaty@po.opole.plp.bobra@po.opole.pl Search for other works by this author on: GSW Google Scholar Grzegorz Mutke; Mutke bGłówny Instytut Górnictwa, Department Geology and Geophysics, Plac Gwarków 1, 40‐166 Katowice, Polandgmutke@gig.katowice.pl Dariusz Nawrocki;...
The case study presents an assessment of the traffic-induced vibrations on humans and residential buildings, which is important for sustainable development. analyzed building had several cracks in walls. Control gypsum tapes were applied to all additional elements near road determine propagation damage. To harmfulness humans, vibration acceleration measurements linked traffic inside carried out. velocities object set based integration obtained accelerations. experimental field investigation...
Wind storms belong to the most costly natural hazards in Poland. On 11–12 August 2017, a strong thunderstorm happened, which resulted catastrophic damage three provinces: Wielkopolskie, Kujawsko-Pomorskie and Pomorskie. This disaster has death of six people, injuries several dozen people enormous property losses. The objective this paper is describe, analyse learn from such dangerous extreme weather event. Examples buildings, with improved stiffness, are presented as solution for better...
Preliminary results of an application rotation rate sensors in dynamic identification a vibrating beam are reported. Three rotational sensors, measuring the response cantilever to kinematic harmonic excitations applied reconstruction its stiffness. A successful 15% stiffness drops is demonstrated. With development angular and decrease their cost one can expect further progress this new area vibration-based damage detection.
The recent rapid development of rotation rate sensor technology opens new opportunities for their application in more and fields. In this paper, the potential rotational sensors modal analysis full-scale civil engineering structural elements is experimentally examined. For purpose, vibrations two 6-m long beams made ultra-high performance concrete (UHPC) were measured using microelectromechanical system (MEMS) sensors. excited to an impact hammer a dynamic vibration exciter. results...
The paper presents an example of evaluation the traffic impacts on residential building. Residents noticed numerous damage to building, which, in their opinion, were caused by movement trucks from nearby transport base agricultural equipment’s. control seals have been glued all cracks building and elements close road, order determine damages propagation. ground vibrations established during study. vibration accelerations frequency function at selected points measured. Taking into account...
This paper reports the analysis of effectiveness application rotation rate sensors in structural damage identification problem using harmonic vibrations for plexiglass models cantilever beams. The two types are applied: angular and conventional translational, piezoelectric accelerometers. amplitudes dynamic response under kinematic excitations were subsequently used stiffness reconstruction procedure. Particularly promising results obtained by only
<p>The need to model seismic capacity of stalagmites derives from the objective speleoseismology study long term hazard [1], [2], [3]. Assessment is done in terms peak ground acceleration, which would break stalagmite. The problem not easy for many reasons: (1) shape and internal structure neither uniform nor isotropic, (2) it well known engineering that breaking a vertical cantilever may require knowledge full time history accelerations (PGA, duration, spectral content) (3)...
A procedure for forecasting the results of induced seismicity on buildings following exceptionally strong mine tremors
In this article, the application of rotation rate sensors for structural health monitoring reinforced concrete beams is proposed as an alternative SHM method these structures. To investigate subject a 6 m long beam was progressively damaged. During each damage state, cracks were investigated, and experimental modal analyses conducted. Translational rotational vibration modes acquired using translational accelerometers sensors. The stiffness distribution damaged identified from properties...
Windstorms belong to the most costly natural threats in Poland. On August 11-12, 2017, a strong thunderstorm happened which resulted catastrophic damage three provinces: Wielkopolskie, Kujawsko-Pomorskie, and Pomorskie. This disaster has death of 6 people, injuries several dozen enormous property losses including approximately 16,000 residential, utility public buildings, 80,000 hectares forest area, 67,000 agricultural crops, excess 300 overhead power line poles, over 200 cables were...