Seismic Retrofitting for Masonry Historical Buildings

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.

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Correlation of Vulnerability and Damage between Artistic Assets and Structural Elements: The DataBAES Archive for the Conservation Planning of CH Masonry Buildings in Seismic Areas

Sustainability ◽

10.3390/su12020653 ◽

2020 ◽

Vol 12 (2) ◽

pp. 653 ◽

Cited By ~ 3

Author(s):

Maria Rosa Valluzzi ◽

Sergio Calò ◽

Gianluca Giacometti

Keyword(s):

Seismic Event ◽

Preventive Measures ◽

Masonry Buildings ◽

Wall Paintings ◽

Structural Elements ◽

Historical Buildings ◽

Seismic Behaviour ◽

Limit States ◽

Historical Masonry ◽

Artistic Assets

Historical buildings in seismic hazard-prone regions need specific measures in safety protection, largely due to the presence of artistic assets and/or decorations, both movable (e.g., statues, pinnacles, etc.) and unmovable (e.g., frescoes, valuable plasters or wall paintings, mosaics, and stuccoes). A correlation of damage between structural systems and artworks is fundamental for defining limit states, which can identify the proper conditions for interventions. Nevertheless, several vulnerability aspects can be identified before a seismic event occurs, the study of which can provide the basic dataset for setting up preventive measures in conservation programs. In this paper, the vulnerability and damage conditions related to structural elements (SE) and unmovable artistic assets (AA) belonging to historical masonry buildings are analysed. Optimized survey forms for the onsite detection of either intrinsic (e.g., compositional) defects or deterioration phenomena for both materials and structure are proposed, and results are provided in a web data system (called DataBAES). This enables us to compare the current levels of vulnerability and damage of AA and SE on a scale of five increasing grades. This procedure has been validated on a series of buildings struck by earthquakes in Italy and can be used for correlations of the seismic behaviour of SE and AA in predictive analyses.

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Proposals for seismic retrofitting of timber roofs to enhance their in-plane stiffness and diaphragm action at historical masonry buildings in Cairo

Journal of Cultural Heritage ◽

10.1016/j.culher.2018.02.005 ◽

2018 ◽

Vol 32 ◽

pp. 73-83 ◽

Cited By ~ 2

Author(s):

Yaser Yehya Amin Abdel-Aty

Keyword(s):

Seismic Retrofitting ◽

Masonry Buildings ◽

Diaphragm Action ◽

Historical Masonry

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

Bulletin of Earthquake Engineering ◽

10.1007/s10518-019-00603-6 ◽

2019 ◽

Vol 17 (6) ◽

pp. 3365-3395 ◽

Cited By ~ 3

Author(s):

Abide Aşıkoğlu ◽

Özgür Avşar ◽

Paulo B. Lourenço ◽

Luís C. Silva

Keyword(s):

Masonry Structure ◽

Seismic Retrofitting ◽

Historical Masonry

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A Contribution to the Treatment of Salt Damage in Historical Buildings

Materials Science Forum ◽

10.4028/www.scientific.net/msf.824.127 ◽

2015 ◽

Vol 824 ◽

pp. 127-132

Author(s):

Iñigo Antepara ◽

Igor Medveď ◽

Jaromír Žumár ◽

Robert Černý

Keyword(s):

Building Materials ◽

Historical Buildings ◽

Research Teams ◽

Porous Building Materials ◽

Salt Damage ◽

Advantages And Disadvantages ◽

Historical Masonry

Salts and water may cause serious damage to historical masonries. Therefore, numerous conservation treatments have been developed by research teams for the consolidation and protection of porous building materials affected by salt attack. Here the focus is on methods for obtaining an effective desalination of historical masonry, indicating their advantages and disadvantages. It is pointed out that cellulose is a favourite material added to poultices used in desalination.

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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.

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