A5048404294- Seismic Performance and Analysis
- Geotechnical Engineering and Underground Structures
- Geotechnical Engineering and Analysis
- Structural Health Monitoring Techniques
- Structural Engineering and Vibration Analysis
- Geotechnical Engineering and Soil Stabilization
- Nuclear reactor physics and engineering
- Geophysics and Sensor Technology
- Graphite, nuclear technology, radiation studies
- Nuclear and radioactivity studies
- Geotechnical Engineering and Soil Mechanics
- Landslides and related hazards
- Seismic Waves and Analysis
- Structural Response to Dynamic Loads
- earthquake and tectonic studies
- Rock Mechanics and Modeling
- Geotechnical and construction materials studies
- Infrastructure Maintenance and Monitoring
- Concrete Corrosion and Durability
- BIM and Construction Integration
- Masonry and Concrete Structural Analysis
- Dam Engineering and Safety
- Concrete Properties and Behavior
- Speech and Audio Processing
- Image Processing and 3D Reconstruction
University of Bristol
2018-2024
Khalifa University of Science and Technology
2023-2024
Earthquake Engineering Research Institute
2018-2021
Marymount University
2018
National Technical University of Athens
2008-2013
City University of New York
2003
Digital Twins (DTs) are forecasted to be used in two-thirds of large industrial companies the next decade. In Architecture, Engineering and Construction (AEC) sector, their actual application is still largely at prototype stage. Industry academia currently reconciling many competing definitions unclear processes for developing DTs. There a compelling need establish DTs as practice AEC by common procedures standards tailored sector's use cases. This paper proposes step-by-step workflow...
The rocking response of rigid, free-standing bodies to earthquake pulses is revisited. A two-dimensional rectangular block resting on a rigid base considered, subjected an idealized ground acceleration pulse composed two constant half-cycles equal amplitude, duration, and opposite sign. Closed-form expressions are obtained for the dynamic response, whereas rigorous overturning criteria established conditions with without impact. solutions expressed in terms three dimensionless parameters,...
New analytical solutions are derived for the frictional sliding of rigid blocks to idealized ground acceleration pulses. These excitations indicative near-fault earthquake motions affected by forward fault-rupture directivity, which may inflict large permanent displacements in absence substantial resistance at interface. The scope this study is threefold: (1) derive a wide set pulses; (2) investigate effects symmetric and asymmetric under both unilateral bilateral excitation conditions; (3)...
The BAPS Hindu Mandir, recently constructed in Abu Dhabi, UAE, is a complex unreinforced stone masonry structure built from thousands of sculpted sandstone and marble pieces employing ancient Indian techniques called Shilp Shastra. entire substantially large with footprint size 5,100 m2 unique so that it not covered by modern seismic design standards. Its performance was verified conducting dynamic field tests presented herein. most vulnerable substructure identified based on both...
Summary The complex dynamics of a quarter‐scale model graphite nuclear reactor core, representative the second generation British advanced gas‐cooled reactors, is investigated numerically and experimentally. Advanced cores are polygonal, multilayer, arrays bricks, with each brick allowed to rock by design relative other in accordance boundary conditions. A 35 000 DOF, nonlinear finite element core created Atkins Nuclear, was analysed on high performance computing facility at University...
Abstract Numerical and analytical solutions are presented for the elastic inelastic response of single‐degree‐of‐freedom yielding oscillators to idealized ground acceleration pulses. These motions typical near‐fault earthquake recordings generated by forward rupture directivity may inflict damage in absence substantial structural strength ductility capacity. Four basic pulse waveforms examined: (1) triangular ; (2) sinusoidal (3) exponential (4) rectangular . In first part article, a...
We report on results from triaxial drained monotonic and cyclic compression tests for four different aggregates (gabbro, limestone, demolished concrete, steel slag), discuss the applicability of UBCSAND model simulating relevant non-linear stress-strain curves. First, is integrated analytically elastic plastic volumetric deviatoric strains, leading to a pair novel closed-form solutions expressed in terms hypergeometric functions. These are inherently free numerical errors can be used...
Abstract Geotechnical designers and modellers must capture quantify the variability of key soil properties to make engineering decisions. There is a long history in geotechnical assembling large databases past tests. This paper shows use two contexts: (a) slope stability modelling Eastern Caribbean (b) settlement response bored piles London Clay.
Abstract A shift approach is presented for evaluating and interpreting the response of rigid‐perfectly plastic single‐degree‐of‐freedom systems to dynamic loading. Scaling laws such are, as term suggests, multiplicative in nature, relating peak products key problem parameters linear spectral coordinates, force reduction coefficient values excitation its time derivatives. Contrary classical laws, proposed additive , imposing a ordinates abscissa function by means set uniquely related yielding...
The availability of reliable field data is critical for the advancement geotechnical engineering. This particularly case piled foundations; due to substantial uncertainties. settlement (performance) predictions from established analytical methods may deviate measurements by as much an order magnitude. paper provides a statistical assessment uncertainty pile performance under axial loading using openly accessible database load tests United Kingdom. collected information was classified type,...
Analytical and numerical solutions are presented for the rigid-plastic response of geo-structures to idealized ground acceleration pulses. These shock-like waveforms typical near-fault earthquake motions generated by forward fault-rupture directivity may inflict large permanent displacements in absence substantial residual soil strength. The modeled as rigid blocks resting on inclined frictional planes. Although idealized, these models widely accepted geotechnical engineers, simulating a...