Assessment Of Ancient Masonry Slender
Towers Under Seismic Loading:
Dynamic Characterization Of The
Cuatrovitas Tower
Author(s)
P. Pineda & A. Sáez
Abstract
The Cuatrovitas tower is a XIIth century almohad minaret located in the
province of Seville (Spain) and it is considered the best preserved almohad
religious building in the Iberian Peninsula. As it is placed in a seismic area, it is
crucial for its preservation to evaluate its dynamic response under earthquake
loading and to assess the safety level in its present state of conservation. In this
paper a number of three-dimensional linear and non-linear finite element models
with different levels of complexity and simplifications are developed, using 3-D
solid elements or 3-D beams elements. All the models assume that the masonry
structure is homogeneous and the material non-linear behaviour – including
crushing and cracking – is simulated by means of different constitutive models.
Subsequent non-linear static and non-linear dynamic analyses are performed.
Previous static and time-history dynamic analyses with a simplified elastic
material model are evaluated to calibrate the non-linear response, and to take into
account that crack opening may introduce numerical instabilities. Comparison
among the different models is thoroughly discussed, in particular as predicted
local and global collapse mechanisms are concerned, in order to evaluate the
suitability, accuracy and limitations of each analysis. To conclude, a general
methodology is proposed to assess safety and to improve seismic resistance of
this and other similar cultural heritage buildings.
Keywords: ancient masonry tower, almohad architecture, non-linear dynamic
analysis, earthquake loading.
Keywords
ancient masonry tower, almohad architecture, non-linear dynamic
analysis, earthquake loading
Related Book
Other papers in this volume
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