Results 71 to 80 of about 53,901 (258)

Evidence for postseismic deformation of the lower crust following the 2004 Mw6.0 Parkfield earthquake [PDF]

, 2011
Previous studies have shown that postseismic relaxation following the 2004 Mw6.0 Parkfield, CA, earthquake is dominated by afterslip. However, we show that some fraction of the afterslip inferred from kinematic inversion to have occurred immediately ...
Avouac, Jean-Philippe, Barbot, Sylvain, Bruhat, Lucile   +2 more
core  

South Atlantic continental margins of Africa: a comparison of the tectonic vs climate interplay on the evolution of equatorial west Africa and SW Africa margins

, 2005
The comparative review of 2 representative segments of Africa continental margin: the equatorial western Africa and the SW Africa margins, helps in analysing the main controlling factors on their development.
Anka, Zahie, Seranne, Michel
core   +2 more sources

Seismic performance evaluation of a century‐old RC columns for railway's structural concrete

Structural Concrete, EarlyView.
Abstract Since the Great Kanto Earthquake of 1923 in Japan, reinforced concrete (RC) has been adopted for railway bridge piers, and some of these structures, now over 100 years old, continue to support transportation in the capital city of Tokyo. Evaluating the seismic performance of these few remaining RC structures has become an urgent issue. Because
Kousuke Kuwakino, Chikako Fujiyama, Koichi Maekawa   +2 more
wiley   +1 more source

Experimental assessment and retrofit of full-scale models of existing RC frames [PDF]

, 2002
PSD tests on two full-scale models of existing non-seismic resisting RC frame structures are described. The testing program covered several aspects, namely assessment of seismic performance of existing frames without and with infill panels ...
Molina, J., Pinto, A. V., Varum, H.
core   +1 more source

Computational intelligence model for predicting the compressive strength of FRP‐confined concrete column

Structural Concrete, EarlyView.
Abstract Fiber reinforced polymer (FRP) wrapping technology is commonly used to enhance the compressive strength (CS) of reinforced concrete (RC) members. Accurate prediction of the compressive strength of FRP‐confined concrete columns is crucial for optimizing structural design and helps reduce the time and costs associated with physical testing ...
XuanRui Yu, Nima Khodadadi, Anxiang Song, Tianyu Hu, Yang Yu, Antonio Nanni   +5 more
wiley   +1 more source

What can GPS data tell us about the dynamics of post-seismic deformation? [PDF]

Geophysical Journal International, 2003
SUMMARY This paper describes differences in time-varying post-seismic deformation due to after-slip and viscoelastic relaxation following large strike-slip earthquakes, and how these differences may be exploited to characterize the configuration and rheology of aseismically deforming material in the subsurface. The analysis involves two steps. First,
openaire   +1 more source

Bond‐slip modeling for reinforced concrete beam‐column joints with plain reinforcement bars: Insights from numerical validation

Structural Concrete, EarlyView.
Abstract The previous seismic events indicated the vulnerability of old reinforced concrete (RC) structures against earthquakes due to the absence of seismic detailing and capacity design specifications in such buildings. In this context, beam‐column joints (BCJ) of the existing RC structures built before the 1970s have exhibited poor structural ...
Peyman Sabbahfar, José Melo, Humberto Varum, Hugo Rodrigues   +3 more
wiley   +1 more source

Experimental investigation of reinforced concrete members subjected to reversed cyclic axial loading

Structural Concrete, EarlyView.
Abstract This paper presents an experimental campaign of five reinforced concrete members subjected to cyclic axial loading alternating between tension and compression. Fiber optical sensors and digital image correlation, in combination with automated crack detection and measurement, were used to investigate, among other aspects, the development of ...
Simon Karrer, Karel Thoma, Walter Kaufmann   +2 more
wiley   +1 more source

Geodetic model of the 2016 Central Italy earthquake sequence inferred from InSAR and GPS data [PDF]

, 2017
We investigate a large geodetic data set of interferometric synthetic aperture radar (InSAR)and GPS measurements to determine the source parameters for the three main shocks of the 2016Central Italy earthquake sequence on 24 August and 26 and 30 October (
A. Antonioli, A. Avallone, A. Esposito, A. Galvani, A. Montuori, A. Pepe, Albano, Atzori, Bigi, Bignami, Boncio, Bonini, C. Bignami, C. De Luca, C. Doglioni, C. Tolomei, Cheloni, Cheloni, Chiaraluce, Chiaraluce, D'Agostino, D. Cheloni, D. Di Bucci, Devoti, E. Serpelloni, E. Trasatti, E. Valerio, EMERGEO Working Group, F. Casu, F. Riguzzi, Falcucci, G. Cecere, G. Pezzo, G. Pietrantonio, G. Solaro, Galadini, Galli, Galvani, Huang, I. Zinno, Lavecchia, Lavecchia, Liu, Lohman, M. Albano, M. Anzidei, M. Bonano, M. Manunta, M. Manzo, M. Mattone, M. Polcari, Okada, P. Gambino, P. Tizzani, Pepe, Petricca, Pizzi, R. Castaldo, R. Devoti, R. Giuliani, R. Lanari, S. Atzori, S. Calcaterra, S. Pepe, S. Salvi, S. Stramondo, Scognamiglio, Tinti, V. De Novellis, V. Sepe, Wessel, Williams   +71 more
core   +2 more sources

Performance enhancement of reinforced concrete columns using stainless steel and galvanized steel plates: Experimental and numerical investigation

Structural Concrete, EarlyView.
Abstract This study introduces an innovative approach to strengthening defected reinforced concrete (RC) columns using externally bonded stainless steel and galvanized steel plates. Unlike conventional strengthening methods, this technique replaces traditional transverse stirrups with steel sheets, providing enhanced confinement and ductility.
Ahmed Hamoda, Khaled Sennah, Ramy I. Shahin, Aref A. Abadel, Mizan Ahmed, Mohamed Ghalla   +5 more
wiley   +1 more source