Effectiveness of seismic retrofitting of a historical masonry structure: Kütahya Kurşunlu Mosque, Turkey

The static and seismic retrofitting design, for masonry historical buildings, has to follow a right hierarchy of interventions, taking into account that to improve the seismic behavior of a masonry structure, it is necessary to guarantee a “closed box” behavior for the whole structural body or, in case of complex buildings, to guarantee a closed box behavior for each building's wing. Thus it is fundamental to distinguish the interventions for the global behavior improvement from those related to local reinforcements. In this chapter is then proposed a scheme of interventions hierarchy and, therefore, a related design process road-map together with the explanation of a correct design philosophy for the static and seismic retrofitting of historical masonry buildings. Moreover it is also reported an example of two distinguished levels of intervention, with numerical analyses supporting that solution.

Download Full-text

Seismic Retrofitting for Masonry Historical Buildings

Handbook of Research on Seismic Assessment and Rehabilitation of Historic Structures - Advances in Civil and Industrial Engineering ◽

10.4018/978-1-4666-8286-3.ch016 ◽

2015 ◽

pp. 500-524

Author(s):

Alberto Viskovic

Keyword(s):

Design Process ◽

Seismic Behavior ◽

Masonry Structure ◽

Seismic Retrofitting ◽

Global Behavior ◽

Masonry Buildings ◽

Historical Buildings ◽

Road Map ◽

Historical Masonry ◽

Related Design

The static and seismic retrofitting design, for masonry historical buildings, has to follow a right hierarchy of interventions, taking into account that to improve the seismic behavior of a masonry structure, it is necessary to guarantee a “closed box” behavior for the whole structural body or, in case of complex buildings, to guarantee a closed box behavior for each building's wing. Thus it is fundamental to distinguish the interventions for the global behavior improvement from those related to local reinforcements. In this chapter is then proposed a scheme of interventions hierarchy and, therefore, a related design process road-map together with the explanation of a correct design philosophy for the static and seismic retrofitting of historical masonry buildings. Moreover it is also reported an example of two distinguished levels of intervention, with numerical analyses supporting that solution.

Download Full-text

Effects of Structural Parameters on Seismic Behaviour of Historical Masonry Minaret

Periodica Polytechnica Civil Engineering ◽

10.3311/ppci.10687 ◽

2017 ◽

Cited By ~ 2

Author(s):

Barış Erdil ◽

Mücip Tapan ◽

İsmail Akkaya ◽

Fuat Korkut

Keyword(s):

Modal Analysis ◽

Structural Parameters ◽

Masonry Structure ◽

Operational Modal Analysis ◽

Shear Cracks ◽

Seismic Behaviour ◽

New Model ◽

The Core ◽

Historical Masonry ◽

Stiffness Distribution

The October 23, 2011 (Mw = 7.2) and November 9, 2011 (Mw = 5.6) earthquakes increased the damage in the minaret of Van Ulu Mosque, an important historical masonry structure built with solid bricks in Eastern Turkey, resulting in significant shear cracks. It was found that since the door and window openings are not symmetrically placed, they result in unsymmetrical stiffness distribution. The contribution of staircase and the core on stiffness is ignorable but its effect on the mass is significant. The pulpit with chamfered corner results in unsymmetrical transverse displacements. Brace wall improves the stiffness however contributes to the unsymmetrical behaviour considerably. The reason for the diagonal cracks can be attributed to the unsymmetrical brace wall and the chamfered pulpit but the effect of brace wall is more pronounced. After introducing the cracks, a new model was created and calibrated according to the results of Operational Modal Analysis. Diagonal cracks were found to be likely to develop under earthquake loading. Drifts are observed to increase significantly upon the introduction of the cracks.

Download Full-text

Advanced Seismic Analyses of “Apennine Churches” Stroked by the Central Italy Earthquakes of 2016 by the Non-Smooth Contact Dynamics Method

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.817.309 ◽

2019 ◽

Vol 817 ◽

pp. 309-316 ◽

Cited By ~ 1

Author(s):

Angela Ferrante ◽

Elisa Ribilotta ◽

Ersilia Giordano ◽

Francesco Clementi ◽

Stefano Lenci

Keyword(s):

Seismic Vulnerability ◽

Dynamic Properties ◽

Central Italy ◽

Rigid Bodies ◽

Masonry Structure ◽

Contact Dynamics ◽

Numerical Analyses ◽

Structural Behaviour ◽

Major Purpose ◽

Historical Masonry

The dynamic behaviour and the seismic vulnerability of different masonry “Apennine Churches”, dramatically damaged by the last shocks sequence of 2016 that occurred in Central Italy, have been studied in this paper by means of advanced 3D numerical analyses with the Discrete Element Method (DEM). Thus, a discontinuous approach has been used to assess the dynamic properties and the vulnerability of the masonry structure, through large deformations regulated by the Signorini’s law, concerning the impenetrability between the rigid bodies, and by the Coulomb’s law, regarding the dry-friction model. The major purpose of this study is to highlight that relevant data on the real structural behaviour of historical masonry can be provided through advanced numerical analyses. The comparison between the results of the numerical simulation and the survey of the existing crack pattern of the churches permitted to validate the used approach. Finally, from the results and conclusions of these cases study, it is possible to affirm that the used methodology can be applied to a wide variety of historical masonry structure in Europe.

Download Full-text