Seismic Assessment, Behavior and Retrofit of Heritage by Ioannis N. Psycharis, Stavroula J. Pantazopoulou, Manolis

By Ioannis N. Psycharis, Stavroula J. Pantazopoulou, Manolis Papadrakakis

This publication assembles, identifies and highlights the latest advancements in Rehabilitation and retrofitting of old and background buildings. this is often a subject matter of paramount value in international locations with nice equipped cultural history that still be afflicted by excessive seismicity, akin to the nations of the japanese Mediterranean basin. historical past constructions diversity from conventional residential buildings to huge constructions, historical temples, towers, castles, and so forth. it truly is normally famous that those buildings current specific problems in seismic reaction calculation via desktop simulation as a result of the complexity of the structural procedure that's, often, inhomogeneous, with numerous touch difficulties, gaps/joints, nonlinearities and brittleness in fabric components. This ebook comprises chosen papers from the ECCOMAS Thematic meetings on Computational tools in Structural Dynamics & Earthquake Engineering (COMPDYN) that have been held in Corfu, Greece in 2011 and Kos, Greece in 2013. The meetings introduced jointly the clinical groups of Computational Mechanics, Structural Dynamics and Earthquake Engineering in order to facilitate the alternate of principles in themes of mutual curiosity and to function a platform for constructing hyperlinks among examine teams with complementary activities.

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Sample text

In a further experiment (No. 8), the specimen in a corner configuration with architrave connections was subjected to the Kalamata earthquake scaled down to 40 %. Figure 26a shows the time history of the response of the capital of column C1. On the same diagram, the corresponding displacement for the similar experiment No. 7 without connections is also shown for comparison. It was observed that during the first 6 s, the column response is not affected by the architrave connections. However, after the strong part of the excitation, the displacement of the column is larger if the architrave beams are clamped.

The early work of Veletsos et al. [55] was followed by the papers of Hall et al. [13], Makris [21], Makris and Chang [23], Alavi and Krawinkler [2] and more recently by the papers of Mavroeidis and Papageorgiou [33] and Vassiliou and Makris [51, 52]. Physically realizable pulses can adequately describe the impulsive character of near-fault ground motions both qualitatively and quantitatively. The minimum number of parameters of the mathematical pulse is two, which are the acceleration amplitude, ap and the duration Tp.

A proportional load distribution was introduced as an external acceleration applied at the masses. The analyses on the FEM model showed that the same sequence of damage phases detected in the experimental activity were achieved also in numerical way. Finally, it was noted that when the ultimate experimental control point displacement was applied (d = 34 mm), a large deformation appeared at the base of the central piers, whose sections achieved the assumed limit compressive stress. The global response of the non linear model is synthesized in Fig.

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