Savvas P Papadopoulos

Aristotle University of Thessaloniki | AUTH · Division of Structural Engineering (D.S.E.)

Technical report with multiple authors (please refer to pdf), edited by Anastasios Sextos, Basil Margaris and Nikolaos Klimis. Coordinated by the Hellenic Association of Earthquake Engineering, the Institute of Engineering Seismology and Earthquake Engineering (ITSAK-EPPO) and Democritus University of Thrace with the collaboration of Aristotle Univ...

This paper presents a novel, bridge-dependent approach for quantifying the increase of design quantities due to spatially variable earthquake ground motion (SVEGM). Contrary to the existing methods for multiple support bridge excitation analysis that are either too complicated to be applied by most practitioners or oversimplied (e. g. Eurocode 8, A...

This paper investigates the effect of asynchronous earthquake ground motion on the transverse response of base-isolated bridges. In this context, the excitation of anti-symmetric modes of vibration under asynchronous input is examined and is statistically correlated with characteristic engineering demand parameters. Different ground motion scenario...

In the past decades, a number of major earthquakes caused serious damage to natural gas pipeline networks. In most cases, the devastating effects were caused by permanent ground displacement. However, there exist at least two well documented cases (Mexico City and Northridge Earthquakes) where damage were due to seismic wave propagation. Response o...

The present paper presents the up-to-date results of an ongoing research effort aiming to develop novel, efficient and reliable computational (analytical) methods for assessing the vulnerability of pressure vessel structures as well as at advancing their performance-based seismic design framework. More specifically, various potential simplification...

The 395m long Evripos bridge in central Greece, connects the island of Evia to the mainland. An accelerometer array of 43 triaxial sensors has been monitoring both the free-field excitation and the response of the superstructure in a series of seismic events since 1994. This paper focuses on the characteristics of the spatially variable, earthquake...

In the present work a methodology for the derivation of fragility curves for various types of industrial spherical pressure vessels is developed on the basis of static nonlinear (pushover) analysis. Damage states are defined considering only damage developed at the supporting structure and they are quantified using the displacement of the vessel as...

Abstract. The significance of the spatial variability of earthquake ground motion SVEGM is recognized by all modern seismic codes (EC8, AASHTO, ATC, JRA) but it is only EC8 that provides a clear, though simplified, methodology to account for asynchronous motion for design purposes. Currently, two amendments of the EC8 methodology have been proposed...

The Evripos bridge in central Greece, connects the island of Evia to the mainland. The cable-stayed section of the bridge is 395m in length, with a central span of 215m and side-spans of 90m each. The deck, 13.5m in width, is at 40m above sea-level, suspended by cables from two, 90m high pylons. A permanent accelerometer special array of 43 sensors...