Full 3D CAD procedure for the speedy evaluation of the seismic vulnerability of masonry towers

2019 ◽  
Author(s):  
Natalia Pingaro ◽  
Gabriele Milani
Keyword(s):  
Seismic Vulnerability ◽  
3D Cad ◽  
Masonry Towers

Seismic Risk Mitigation of Historical Masonry Towers by Means of Prestressing Devices

2010 ◽  
Vol 133-134 ◽  
pp. 843-848 ◽  
Author(s):  
Adolfo Preciado Quiroz ◽  
Silvio T. Sperbeck ◽  
Harald Budelmann ◽  
Gianni Bartoli ◽  
Elham Bazrafshan
Keyword(s):  
Seismic Risk ◽  
Seismic Vulnerability ◽  
Risk Mitigation ◽  
Numerical Models ◽  
Failure Mechanisms ◽  
Masonry Towers ◽  
Seismic Risk Mitigation ◽  
Historical Masonry ◽  
Observed Damage ◽  
And Behavior

This work presents the investigation of the efficiency of different prestressing devices as a rehabilitation measure for the seismic risk mitigation of historical masonry towers. As a first phase, the seismic vulnerability of theoretical masonry towers was assessed by means of numerical models validated with information from the literature, observed damage and behavior of these structures due to passed earthquakes (crack pattern and failure mechanisms), and mainly taking into account the engineering experience. Afterwards, the validated models were rehabilitated with different prestressing devices; analyzing the results and concluding which device or the combination of them improved in a better way the seismic performance of the masonry towers. Finally, the methodology will be applied in two historical masonry towers located in seismic areas; the medieval tower “Torre Grossa” of San Gimignano, Italy, and one of the bell towers of the Cathedral of Colima, Mexico.

Fundamental aspects on the seismic vulnerability of ancient masonry towers and retrofitting techniques

2015 ◽  
Vol 9 (2) ◽  
pp. 339-352 ◽  
Author(s):  
Adolfo Preciado ◽  
Gianni Bartoli ◽  
Harald Budelmann
Keyword(s):  
Seismic Vulnerability ◽  
Masonry Towers

Historical Masonry Towers: Overview, Seismic Vulnerability, Behavior During an Earthquake, Seismic Strengthening

2020 ◽  
pp. 49-66
Author(s):  
Ziad Ahmad Aldrebi
Keyword(s):  
Seismic Behavior ◽  
Seismic Vulnerability ◽  
Masonry Structures ◽  
Seismic Strengthening ◽  
Historic Masonry ◽  
Masonry Towers ◽  
Historical Masonry

The article provides an overview of historic masonry towers such as the minarets of mosques, bell towers of churches, clock towers, leaning towers, so-called "falling towers" and ruined towers. It was considered what kind of masonry, what kind of mortars the Romans, the ancient Egyptians, the Inca and Mayan cultures in America used. Some aspects of seismic vulnerability of masonry towers were studied. The modes of destruction of thin masonry structures, mechanisms of destruction of masonry in towers are considered, the seismic behavior of historical masonry towers are considered, and one of the methods of seismic strengthening using an innovative "smart" material is presented.

scholarly journals Evaluation of different approaches for the estimation of the seismic vulnerability of masonry towers

2017 ◽  
Vol 16 (3) ◽  
pp. 1511-1545 ◽  
Author(s):  
Vasilis Sarhosis ◽  
Gabriele Milani ◽  
Antonio Formisano ◽  
Francesco Fabbrocino
Keyword(s):  
Seismic Vulnerability ◽  
Masonry Towers

scholarly journals Seismic Capacity Estimation of a Masonry Bell-Tower with Verticality Imperfection Detected by a Drone-Assisted Survey

2020 ◽  
Vol 5 (9) ◽  
pp. 72
Author(s):  
Francesco Micelli ◽  
Alessio Cascardi ◽  
Maria Antonietta Aiello
Keyword(s):  
Seismic Vulnerability ◽  
Geometrical Model ◽  
Cultural Value ◽  
Seismic Capacity ◽  
Bell Tower ◽  
Masonry Towers ◽  
Heritage Constructions ◽  
Nonlinear Static ◽  
Exhaustive Study ◽  
Masonry Tower

Masonry towers are considered an important part of cultural heritage due to their architectural and historical value. From a structural perspective these kind of buildings are considered slender elements, the same as a cantilever beam. In real cases it is not easy to model with high accuracy these heritage constructions, since the geometry and mechanical properties of the constituent materials are not adequately known. On the other hand, a deep knowledge of the structural and seismic vulnerability of the masonry towers is needed in order to preserve and retrofit, when necessary, their architectural and cultural value. In the present research an exhaustive study is presented, as it regards the assessment of the seismic vulnerability of a heritage masonry bell-tower, built in the 14th century. An innovative protocol of structural survey followed, and it is proposed herein. The geometry of the tower was easily obtained by digital photogrammetry assisted by a drone. The geometrical model was easily converted into a digitalized input, that was introduced into a finite element method (FEM)-based code. The 3D model was used for linear static, linear dynamic and nonlinear static (pushover) structural analyses. The vulnerability of the masonry tower was assessed and at least one kinematic was found to be not verified.

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