Symposium Istanbul, 5-6 october

Symposium Istanbul, 5-6 october
The Guideline of Earthquake Risks Management for Historical Structures



“International Symposium on Earthquake Risk Management of Historical Structures: With a Focus on Tuskish Guideline" has been realizing as the final of Med-Art II Project which made in scientific cooperation with Assorestauro (Italian Association for Architecture, Art and Urban Restoration). Med-Art II has been begun with the translation of Italy's guide on the management of earthquake risks for historical buildings. Afterwards, “The Guideline of Earthquake Risks Management for Historical Structures" has been completed on 25th August 2017 in consequence of a hard work conducted in participation with the science committee consisting of Turkish scientists and the institution representatives. The promotion of this significant and innovative work which is Turkey's first will be realized with the symposium.
In the Symposium, 31 presentations will be shared from Turkey and invited countries. Turkey's “The Guideline of Earthquake Risks Management for Historical Structures" will be introduced by the members of guide science committee to all guests and target users in a special session.

International Symposium on Earthquake Risk Management of Historical Structures: With a Focus on Tuskish Guideline,  aims at the promotion of “The Guideline of Earthquake Risks Management for Historical Structures" for all the environments studying on conservation with international effectiveness. Furthermore, it has been aiming that the countries, making similar works before, will share their experiences and accumulations scientifically, and evaluating of probable cooperation forward looking.
In particular, the experts from Italy which is scientific partner of the project and the scientists from the countries which have high seismic risk such as Greece, Iran, Portugal, Chile and Mexica have been invited to organization for sharing their experiences.

Emergency safeguarding measures and repair/strengthening interventions for the restoration of Earthquake Damaged Historical Structures: lessons learned from Italian earthquakes

Claudio Modena, University of Padua

ABSTRACT: The preservation of architectural heritage especially in seismic prone areas requires engineering approaches that are quite different from those normally used for the design of new constructions. In recognition of that, and taking advantage of the lessons learned from past earthquakes, substantial innovations have been, and are still being gradually introduced in this field into the Italian structural codes system. Critical issues, and real challenges are on one side the way how the “capacity” to resist static and especially seismic actions of historic constructions is to be evaluated, given the demonstrated inadequacy of the tools used for the design of new constructions, and on the other side the decision on  the minimum  acceptable, formalistically calculated, structural safety level, taking  into consideration the possible unacceptable losses of artistic/historic values connected to “unnecessary” or to “unnecessarily invasive” interventions. In a context of ineliminable and very high uncertainties, the “qualitative” (“expert”) judgments are asked to play a decisive role in all the phases of the above decision process. The most recent evolution of the Italian national structural codes, already approved but still in the process for official publication, underlines in this context that “minimizing” the interventions, and adopting interventions that  “minimize” the changes they produce to the “structural behavior” of the historic constructions, is the most appropriate way of intervening form the “structural” point of view, as more “reliable” and “ controllable” seismic responses will follow. Reference will be made in the presentation to case studies where all the above issues have been tackled.    


Restoration and reconstruction of Fatih Camii in Enez
Nicola Berlucchi, Studio Berlucchi

ABSTRACT:  The presentation will focus about the methodological aspects of reconstruction project of ruined old monuments: the aim of conserving and enhance all historical phases without erasing hundreds of years of history.
The emblematic case of Fatih Camii once Hagia Sophia byzantine church, ruined because of earthquakes and abandon, can give some suggestions about the theoretical approach for reconstruction works.
It will be shown during the presentation the structural choices for reinforcement and completion of the missing part of the monument, with traditional materials like stone, bricks and wood combined with use of steel and deep diagnostics to minimize any work.
The entire project has been directed by VGM to guarantee the full conservation of old byzantine and ottoman remains, without a judgement about the single value of any remains, but with the respect of history and without prevailing with new insertions or new architectural materials.
The aim is to give back to the monument its use as a mosque but in the same time to respect an historical monument that could improve the tourism in Enez and the comprehension of its history.


Italian guideline and Conservation-Strengthening works in Italy
Andrea Griletto, Technical Director of Assorestauro

Assessment and mitigation of seismic risk to Cultural Heritage: principles and methodologies according to the Italian Guidelines

Claudio Modena, University of Padua

ABSTRACT: Seismic events capable of causing major damages to historic centers are rather frequent in Italy, and under the pressure of such situation a sustainable and comprehensive approach has been progressively developed to preserve as much as possible of any valuable historic/artistic relic  of the architectural heritage  even in presence of extensive collapses. A very  critical role is played in this context by the emergency safeguarding measures, which are in fact specifically designed - considering the type of structure and the type and extent of damages – in order to be part of an unique and continuum process that can be progressively carried out, in a step by step approach that allows for implementing an appropriate and complete “restoration project” while taking into account the overall preservation necessities of the historic complex, the available resources, and in case the results of  controls of the  efficiency of what has been at every step  done. The availability of tools helping in the very difficult task of evaluating the safety conditions of the construction under consideration – simplified models, in situ nondestructive tests, structural health monitoring - is more and more playing a decisive role in the most critical cases. Such tools are also becoming almost indispensable when dealing with a very specific case of “damaged historical construction”, i.e. the archeological sites, where frequently ruins are to be preserved as testimony of the history but at the same time ensuring that visitors will not be in danger and that damages will not worsen with time. Reference will be made in the presentation to case studies where all the above issues have been tackled.


Keeping up with conservative balance: the Chaste Lovers insula in the archaeological site of Pompeii
Francesca Brancaccio, B5

ABSTRACT: The restoration and consolidation of the Chaste Lovers insula, in Pompeii, involve 5 different main actions:
• New coverage;
• Restoration and walls securing;
• Consolidation of fronts of excavation;
• Archaeological excavations;
• Accessibility and valorization of the site.
Some of the choices undertaken for securing archeological walls and for the new steel coverage involves the needing of better managing Earthquake Risk. The analysis of the structural behavior of the archeological walls involved historical knowledge, geometric survey, analysis of discontinuities, the evaluation of the causes of the disruption and the identification of the interventions. For the new coverage, the horizontal actions due to the earthquake were reduced by using seismic isolators, reducing the impact of supports (only 12 columns), taking into account the limitation of the maximum effort (cuts and tilting moments) transferred to the foundation ground and contributing to ensure seismic security also in case of a medium-high magnitude event.


New Italian guidelines and certifications for the use of FRP composite materials in the reinforcement and seismic protection of existing buildings
Cecilia Zampa, FibreNet

ABSTRACT: F.R.P. (Fiber Reinforced Polymer) composites  are widely used in Italy and outside for the restoration and seismic protection of existing buildings. Thanks to their light weight, good performances, scarce invasivity they can represent a valuable solution in the reinforcement of old masonries, pillars and vaults subject to seismic action. The Italian Minister of Infrastructures through its executive body - the Top Council for Public Works - has paid much attention to this issue and has defined some guidelines for the design, execution and testing of reinforcing interventions on masonries and concrete through F.R.P. composites. They have recently defined a procedure for the qualification, acceptance and testing of these materials on site, to which all producers, workers and technicians have to apply.
Scope of this intervention is to share the content of these documents, with the aim to provide new and reliable instruments aiming to guarantee  safe and effective structural reinforcements on historical buildings.