Dynamic Behavior of a Medieval Masonry Bell Tower. II: Measurement and Modeling of the Tower Motion
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Volume 131, Issue 11
Abstract
The work described herein was conducted within the framework of an ongoing research program on the dynamic behavior of the Tower of Matilde, the bell tower of the Cathedral of San Miniato, Pisa, Italy, an interesting case study for its current structural arrangement and the modifications it has undergone over the centuries. This is Part 2 of a more extensive publication dealing with the results of such research and presents the experimental measurements and analyses conducted in order to determine the motion of the tower subjected to the actions produced by the motion of the two largest of its six bells. The numerical and analytical models adopted to interpret the experimental results, from the most elaborate and complex to the simplest ones, have all confirmed that the third harmonic frequency of oscillation of the largest bell is very close to the first eigenfrequency of the bell tower structure. Such studies moreover have enabled making a first approximation of the values of the global mechanical parameters characterizing the tower’s dynamic behavior.
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References
Beconcini, M. L., Bennati, S., and Salvatore, W. (2001). “Structural characterisation of a medieval bell tower: First historical, experimental and numerical investigations.” Proc., 3rd Int. Seminar, Structural Analysis of Historical Constructions, Historical Constructions 2001, Possibilities of Numerical and Experimental Techniques, P. B. Lourenço, and P. Roca, ed., Guimarães, Portugal, 431–444.
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Bennati, S., Nardini, L., and Salvatore, W. (2005b). “The Tower of Matilde in San Miniato and its dynamic behaviour: some first results.” Proc., Dept. of Structural Engineering, Pisa, Italy, in press.
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Information & Authors
Information
Published In
Journal of Structural Engineering
Volume 131 • Issue 11 • November 2005
Pages: 1656 - 1664
Copyright
© 2005 ASCE.
History
Received: Dec 23, 2003
Accepted: Oct 15, 2004
Published online: Nov 1, 2005
Published in print: Nov 2005
Notes
Note. Associate Editor: Barry Thomas Rosson
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