PSI - Issue 29

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 il l li t . i i t. tr t r l I t rit r i ( )

www.elsevier.com/locate/procedia . l i r. /l t / r i

ScienceDirect

Procedia Structural Integrity 29 (2020) 192–198

© 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti In this contribution, some examples of the application of post-tensioning to an archeological element are presented. The application of rigid-block analysis to archeological elements (retrofitted with external post-tensioning system) is developed and discussed. © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti Keywords: Rigid block analysis, limit analysis, archeological sites, post -tensioning system, ancient masonry structures. 1. Introduction In Europe, many archeological sites require continuous maintenance interventions able to preserve the cultural va lue of this type of heritage. With this a im, particular a ttention to ruins, the rema ins of larger portions and archeological artifacts should be done [1-3]. These elements, generally made of old stone masonry materials are vulnerable to external action such as earthquake, differential settlements, degradation etc... In order to increase their l i l ti t . These elements, generally made of ancient stone masonry materials are vulnerable to external action such as are earthquakes, i ti l ttl t , ti , t .. t t i t t l l ilit , i i t ti ll i i i t i t t t ti ti t ti l l t l i l l t. t t i i t t l t t i i t t t l . t i t i ti , l t li ti t t i i t l i l l t t . li ti i i l l i t l i l l t t itt it t l t t i i t i l i . 20 t . li l i . . This is an open access article under the CC BY-NC-ND lic tt :// ti . /li / / . / i i ilit lli t i iti Keywords: Rigid block analysis, limit analysis, archeological sites, post -tensioning system, ancient masonry structures. . , . , , . , , , ... Art Collections 2020, Safety Issue (ARCO 2020, SAFETY) Rigid-block analysis of archeological elements retrofitted with external post-tensioning system Paolo Zampieri a* , Cyrille Denis Tetougueni a and Carlo Pellegrino a a Department of Civil, Environmental and Architectural Engineering, University of Padua, Via Marzolo 9, 35131 Padua, Italy Abstract In Europe, many archeological sites require continuous maintenance interventions capable of preserving the cultural value of this type of heritage. To this end, particular attention must be paid to ruins, the remains of larger portions and archeological artifacts. These elements, generally made of ancient stone masonry materials are vulnerable to external action such as are earthquakes, differential settlements, degradation, etc.. In order to reduce their structural vulnerability, repair interventions are usually required using repair techniques that preserve the artistic and aesthetical values of the archeological element. One of these techniques is the use of external post-tensioning systemthrough pre-stressed cables. a t t f i il, i t l it t l i i , i it f , i l , , It l , l i l it i ti i t i t ti l i t lt l l t i t it . t i , ti l tt ti t i t i , t i l ti a

* Corresponding author. Tel.: +39-049-827-5570; fax: +39-049-827-5570. E-mail address: paolo.zampieri@dicea.unipd.it i t r. l.: - - - ; f : - - - . - il : l . i ri i . i .it rr

t

.

li

l

i . .

2 -

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti i i ti l t li tt :// ti . /li / / . / i i ilit lli t i iti

2452-3216 © 2020 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of Marco Tanganelli and Stefania Viti 10.1016/j.prostr.2020.11.156