The Cephalonia, Greece, January 26 (M6.1) and February 3, 2014 (M6.0) earthquakes: near-fault ground motion and effects on soil and structures
| Autor: | Ch. Papaioannou, Nikos Theodoulidis, Konstantia Makra, V. Lekidis, Thomas N. Salonikios, Alexandros Savvaidis, Emm. Rovithis, Basil Margaris, Konstantinos Morfidis, Ch. Karakostas |
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| Rok vydání: | 2015 |
| Předmět: |
Accelerograph
021110 strategic defence & security studies Peak ground acceleration Hydrogeology business.industry 0211 other engineering and technologies Transform fault Landslide 02 engineering and technology Building and Construction Masonry 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology 01 natural sciences Strong ground motion Geophysics business Structural geology Geology Seismology 0105 earth and related environmental sciences Civil and Structural Engineering |
| Zdroj: | Bulletin of Earthquake Engineering. 14:1-38 |
| ISSN: | 1573-1456 1570-761X |
| DOI: | 10.1007/s10518-015-9807-1 |
| Popis: | The M6.1 and M6.0 Cephalonia (Greece) earthquakes on 26 January and 3 February 2014, were right lateral strike-slip events. Both shocks occurred on the Cephalonia Transform Fault zone. Strong ground motion was recorded in the near-fault at the permanent and temporary accelerograph network of ITSAK, with the highest to date acquired peak ground acceleration in Greece (PGA = 0.77 g at Chavriata-CHV1 station). Local site effects in combination with source effects, have strongly affected near-fault ground motion. Landslides, rock sliding effects, behavior of stone masonry retaining walls, road embankments, road network failures, ports and liquefaction are also investigated and presented. Seismic response of different type of structures at the stricken area is presented and comparison of the near-fault recorded ground motion with seismic code provisions in Greece is attempted. Although, near-fault seismic excitation imposed to Cephalonia buildings was much higher than the design values foreseen by the old and recent codes, corresponding damage was much lower than one could expect. The over-strength of structures together with a long established good construction practice on the island of Cephalonia could explain their favourable response to high seismic actions, overwhelming those of seismic code provisions. However, buildings constructed according to the 1959 Greek Seismic Code or earlier, should be investigated in more detail and if high vulnerability is detected, it is necessary to strengthen them according to modern seismic code provisions. |
| Databáze: | OpenAIRE |
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