Seismic assessment of a historical masonry tower with nonlinear static and dynamic analyses tuned on ambient vibration tests

2012 ◽  
Vol 36 ◽  
pp. 210-219 ◽  
Author(s):  
Angelo D’Ambrisi ◽  
Valentina Mariani ◽  
Marco Mezzi
Keyword(s):  
Seismic Assessment ◽  
Ambient Vibration ◽  
Ambient Vibration Tests ◽  
Dynamic Analyses ◽  
Historical Masonry ◽  
Nonlinear Static ◽  
Vibration Tests ◽  
Masonry Tower

Seismic Assessment of a Historical Tower with Advanced Numerical Model Tuned on Ambient Vibration Data

2010 ◽  
Vol 133-134 ◽  
pp. 617-622 ◽  
Author(s):  
A. D’Ambrisi ◽  
V. Mariani ◽  
M. Mezzi
Keyword(s):  
Element Model ◽  
Ambient Vibration ◽  
Seismic Capacity ◽  
Dynamic Identification ◽  
Seismic Behaviour ◽  
Vibration Data ◽  
Ambient Vibration Tests ◽  
Vibration Tests ◽  
Masonry Tower ◽  
Non Destructive

This paper deals with the dynamic characterization and the evaluation of the seismic response of the medieval civic tower of Soncino (Cremona, Italy). The dynamic characteristics and the mechanical properties of the masonry tower are evaluated through ambient vibration tests, which provide results in a fast and non destructive way with respect to the traditional methods such as forced vibration tests. Nonlinear static and dynamic analyses are performed on a finite element model of the tower calibrated on the results of the dynamic identification. The damage levels and the seismic capacity of the structure are also evaluated. The obtained results allow to predict the seismic behaviour of the tower and to define possible strengthening and restoration interventions.

scholarly journals Ambient Vibration Tests of an Arch Dam with Different Reservoir Water Levels: Experimental Results and Comparison with Finite Element Modelling

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Sergio Vincenzo Calcina ◽  
Laura Eltrudis ◽  
Luca Piroddi ◽  
Gaetano Ranieri
Keyword(s):  
Finite Element ◽  
Natural Frequencies ◽  
Water Levels ◽  
Arch Dam ◽  
Experimental Results ◽  
Ambient Vibration ◽  
Reservoir Water ◽  
Ambient Vibration Tests ◽  
Vibration Properties ◽  
Vibration Tests

This paper deals with the ambient vibration tests performed in an arch dam in two different working conditions in order to assess the effect produced by two different reservoir water levels on the structural vibration properties. The study consists of an experimental part and a numerical part. The experimental tests were carried out in two different periods of the year, at the beginning of autumn (October 2012) and at the end of winter (March 2013), respectively. The measurements were performed using a fast technique based on asynchronous records of microtremor time-series. In-contact single-station measurements were done by means of one single high resolution triaxial tromometer and two low-frequency seismometers, placed in different points of the structure. The Standard Spectral Ratio method has been used to evaluate the natural frequencies of vibration of the structure. A 3D finite element model of the arch dam-reservoir-foundation system has been developed to verify analytically determined vibration properties, such as natural frequencies and mode shapes, and their changes linked to water level with the experimental results.

Ambient Vibration Tests of Suspension Bridge

1978 ◽  
Vol 104 (5) ◽  
pp. 983-999
Author(s):  
Ahmed M. Abdel-Ghaffar ◽  
George W. Housner
Keyword(s):  
Suspension Bridge ◽  
Ambient Vibration ◽  
Ambient Vibration Tests ◽  
Vibration Tests
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