The prevailing Italian and Greek methodologies for seismic risk assessment are used herein to construct loss scenarios for the building stock
of a small city (Potenza, Southern Italy). The inventory of buildings of interest is obtained from a survey carried out after the 1990 earthquake that
struck Potenza and its hinterland, subsequently updated in 1999. About 12,000 buildings were surveyed in Potenza, using the Italian first level
survey form for damage and vulnerability evaluation. In the Italian methodology, a hybrid technique is set up to evaluate vulnerability, combining
an analysis of building typologies with expert judgement. The probabilistic distribution of damage is evaluated by assigning Damage Probability
Matrices (DPMs) from the literature. Besides the vulnerability classes A, B and C of the MSK-scale, the class D of the anti-seismic buildings
is considered and the relevant DPM is defined. Damage and economic loss scenarios relevant to dwelling buildings are constructed for three
reference earthquakes. Next, the hybrid methodology for seismic vulnerability assessment of reinforced concrete (R/C) and masonry buildings
developed at the University of Thessaloniki (Greece) is applied to the same building stock. The methodology combines available statistical data of
damage collected after past earthquakes with a systematic nonlinear analysis of various “model buildings”, representative of several vulnerability
classes. Similarities, as well as discrepancies, between the two methods are discussed in the light of the obtained results, and possible sources for
the discrepancies are suggested
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Posted by: ak_civil85 - 04-28-2014, 02:33 AM - Forum: Archive
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B. Fournier, P.-C. Nkinamubanzi, R. Chevrier, "Comparative field and
laboratory investigations on the use of supplementary cementing materials to control alkali–silica reaction in concrete", in: Tang Mingshu, Deng Min (Eds.), Proc. 12th Int. Conf. Alkali-Aggregate Reaction in Concrete, vol. 1, International Academic Publishers/World Publishing Corporation, Beijing, 2004, pp. 528–537.
EN 1998: EUROCODE 8 DESIGN OF STRUCTURES FOR EARTHQUAKE RESISTANCE
Author: M.N. Fardis Department of Civil Engineering, University of Patras, G | Size: 4.9 KB | Format:PDF | Quality:Unspecified | pages: 214
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Seismic Evaluation a nd Retrofitting of RC Building b y Using Energy Dissipating Devices
Author: S. I. Khan , Prof. P. O. Modani | Size: 738 KB | Format:PDF | Quality:Unspecified | Publisher: International Journal of Engineering Research and Applications (IJERA)Vol. 3, Issue 3, May-Jun 2013, pp.1504-1514 | Year: 2013 | pages: 11
The Buildings, which appeared to be
strong enough, may crumble like houses of cards
during earthquake and deficiencies may be
exposed. Experience gain from the recent
earthquake of Bhuj, 2001 demonstrates that the
most of buildings collapsed were found deficient to
meet out the requirements of the present day
codes. In last decade, four devastating
earthquakes of world have been occurred in India,
and low to mild intensities earthquakes are
shaking our land frequently. It has raised the
questions about the adequacy of framed
structures to resist strong motions, since many
buildings suffered great damage or collapsed.
Under such circumstances, seismic qualification of
existing buildings has become extremely
important. Seismic qualification eventually leads
to retrofitting of the deficient structures
In the proposed investigation a
performance based evaluation and retrofit of an
existing hostel building in Babasaheb Naik College
of Engineering, Pusad. Built in 1987, the subject
hostel building is a four-story, rectangular
structure. A nonlinear static pushover analysis
using the displacement coefficient method, as
described in FEMA 356, is used to evaluate the
seismic performance of the existing building. A
seismic retrofit using energy dissipating device
based on pushover analysis is proposed for the
life-safety target performance of the existing
building.
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